JPH079055Y2 - Device for feeding objects to be weighed that easily entangles in combination weighing devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a device for feeding an object to be weighed which is easily entangled in a combination weighing device.

2. Description of the Related Art An outline of a conventional combination weighing system will be described with reference to FIG. 6 showing an apparatus for feeding an object to be weighed 1 according to the present invention.

The system in which the object to be weighed supply device 1 is removed from this system is all known, and 2 is a weighing device main body, 3 is a bucket conveyor, 4 is a weighing device main body 2 for the objects to be weighed conveyed by the bucket conveyor 3. The cross feeders to be supplied to

In such a weighing system, an operator loads an object to be weighed into the bucket of the bucket conveyor 3, the object to be weighed falls on the cross feeder 4 at the upper discharge end, and the weighing is performed by the cross feeder 4. It is supplied to the chute 5 of the apparatus main body 2 and then taken out to the outside through the dispersion feeder 6, the pool hopper 7, the weighing hopper 8 and the discharge chute 9, and during that time, it is dispensed in the weighing hopper 8 by computer control.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, in the conventional system as described above, when the object to be weighed is, for example, a snake confectionery used in a foreign country, or an elongated and soft one such as sliced cheese, this is a bucket conveyor. When they are put into the bucket No. 3, they are entangled with each other to form a nodule and are supplied to the cross feeder 4, and even if they are vibrated, the entanglement is not unraveled well and they are supplied to the weighing device main body 2. In some cases, the action of the dispersion feeder 6 may supply the hopper 8 without being sufficiently loosened.

If this happens, proper weighing will not be performed, and the troublesome work of stopping the operation of the entire system and removing the nodule-shaped object to be weighed is required.

Therefore, in order to avoid this, the worker must perform the loosening work manually, which not only requires an extra worker but also hinders the improvement of the overall work efficiency.

Therefore, an object of the present invention is to solve the problems in the conventional weighing system as described above, and to eliminate the work of unraveling the objects to be weighed manually by the worker, and to improve the overall work efficiency. An object of the present invention is to provide a supply device for a measured product.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is based on a belt conveyor that vibrates vertically while transporting an object to be weighed, which is easily entangled, and a discharge end of the belt conveyor. A discharge chute whose ends are pivotally arranged, the tip is inclined downward, and the tip side vibrates vertically around the pivot point, and a drive means for imparting vibration to these belt conveyors and discharge chute. It is characterized by having. Further, in the above-mentioned device, the vertical vibration of the belt conveyor and the discharge chute causes the other end of the connecting rod, which is rotatably fitted to the outer ring provided at one end of the eccentric disc that is rotated by the drive means, to rotate the belt. The mechanism is connected to the conveyor and the discharge chute.

Action In the above-mentioned device 1 for feeding objects to be weighed according to the present invention,
The object to be weighed supplied from the cross feeder 4 moves forward while receiving a delumping action on a belt conveyor that moves laterally while periodically moving up and down by a driving means,
It is supplied to the inclined discharge chute at its discharge end,
Further, on the discharging chute, the chute is cyclically moved up and down by the driving means to be subjected to the crushing action, and the object to be crushed in this way is automatically transferred to the weighing device main body 2. Will be supplied.

The vertical reciprocating motion and the vertical rotating motion of the belt conveyor and the discharging chute as described above each have an eccentric disc which is rotated by a driving means and an outer ring which is rotatably fitted to the eccentric disc, and the other end is This is performed by a mechanism having a belt conveyor and a connecting rod connected to the discharging chute, and when the eccentric disc rotates, the connecting rod moves up and down, which is transmitted to the belt conveyor and the discharging chute.

Embodiment In the embodiment shown in the drawings, 11 is a machine frame, and in this embodiment, as shown in FIG.
It is shared with.

On top of this machine frame 11, a conveyor belt 12 is installed on both sides of the frame 13,1.
It is installed via a spring 15 provided on the front and rear lower surfaces of 4, a top plate 19 is stretched between both side frames 13 and 14, and a drive roller 16 and a driven roller 17 are rotatably provided on the lower front and rear thereof. A conveyor belt 18 is stretched between these rollers 16 and 17. A pulley 20 is attached to the shaft end of the drive roller 16 protruding outside the side frame 14, and a motor 22 is provided substantially inside the center of the side frame 14, and a pulley is attached to the shaft end of the motor 22 protruding outside the side frame 14. 21 is attached, and a timing belt 24 is stretched between both pulleys 20 and 21. And both side frames 13,14
Side plates 23 are erected at a narrow interval on the upper part of the plate, and a through hole 25 is provided at a position where the objects to be weighed fall on both side plates 23.
A photoelectric tube sensor 27 is provided opposite to 25.

The lower ends of the side frames 13 and 14 are connected to each other by a connecting box 28 which is oriented at a right angle, and the connecting box 28 has two parallel horizontal connecting rods 2 arranged vertically.
9,29 'are installed.

Support plates 20 are established on both sides of the machine frame 11, and these support plates 20 are
Two parallel horizontal connecting rods 31, 31 'are provided between 30
Both ends of the parallel links 32, 32 'are pivotally connected to the connecting rods 29, 31; 29', 31 'to form a parallel link mechanism.

A support frame 34 is provided in the lower part of the machine frame 11, and motors 35 and 36 are installed in the support frame 34.
Rotating shafts 40 and 41 that rotate via belts 37 and 38 are pivotally fixed by 5,36. An eccentric disc 42 is provided on the rotary shaft 40, and an upper end of a connecting rod 44 having an outer ring 43 rotatably fitted to the eccentric disc 42 at a lower end is pivotally fixed to a lower surface of the connecting box 28 via a pivot shaft 45. is doing.

Below the drive roller 16, the support shaft 47 is a roller on the machine frame 11.
This support shaft 47 is provided in parallel with 16 and as shown in FIG.
A pair of support arms 48 are provided by pivoting the middle of the support arm 48. A discharge chute 46 is attached to one end of these support arms 48 inclining forward, and a connecting rod 49 is provided at the other end. An eccentric disc 50 is provided on the rotary shaft 41, and an upper end of a connecting rod 52 having an outer ring 51 rotatably fitted to the eccentric disc 50 at a lower end is pivotally fixed to a connecting rod 49. A plurality of pins 53 are formed on the front end of the chute 46.

The operation of the above-mentioned feeding device will be described.

In FIG. 6, the devices 1, 2, 3, 4 are operated together, and the object to be weighed is supplied from the bucket conveyor 3 to the object to be weighed supply device 1 via the cross feeder 4. In this case, when the photoelectric tube sensor 27 detects that an excessive amount of the object to be weighed is mounted on the belt 18 of the belt conveyor 12, the cross feeder 4 is stopped by the start signal, and the object to be weighed on the belt 18 is When the amount becomes less than the proper amount, the supply is restarted.

In this way, the belt conveyor 12 on which the objects to be weighed are mounted
The belt 18 moves in the direction shown by the arrow in FIG. 1 by the operation of the motor 22 to convey the object to be weighed. At the same time, the rotation shaft 40 is rotated by the operation of the motor 35.
The connecting rod 44, in which the outer ring 43 at the lower end is fitted to the eccentric disc 42, periodically moves up and down. Since the lower surface of the connecting box 28 attached to the belt conveyor 12 is pivotally fixed to the upper end of the connecting rod 44, the belt conveyor 12 moves up and down. In this case, the parallel connecting rods 31 and 3 provided between the support frame 30 and the machine frame 11 are integrated.
Since 1'and the parallel link rods 29, 29 'provided in the connecting box 28 constitute a parallel link mechanism with the parallel links 32, 32' having both ends pivotally fixed to these ends, Belt conveyor 12
Will periodically move vertically between the position shown by the solid line and the position shown by the chain line in FIG. Thus the belt conveyor 12
As the belt 18 moves up and down, the entangled object mounted on the belt 18 receives the action of loosening it.

The object to be weighed that has reached the discharge end of the belt conveyor 12 in this way is discharged to the discharge chute 46 and slides down inside the discharge chute 46. In this case, the discharge chute
The reference numeral 46 denotes a support arm 48 pivotally fixed to a support shaft 47 provided on the machine frame 11.
Is attached to one end of the connecting rod, and the other end of the supporting arm 48 moves up and down similarly to the connecting rod 44 by the rotation of the motor 36.
Since it is pivotally fixed at 52, the discharge chute 46 periodically reciprocates about the support shaft 47 between a solid line position and a chain line position in FIG. As the discharge chute 46 makes a reciprocating rotary motion in this way, the object to be weighed which slides on the discharge chute 46 is subjected to a loosening action, and a plurality of pins provided at the discharge end thereof.
It is supplied to the metering device main body 2 after being subjected to a definite loosening action by 53.

In the above case, the motors 22, 35, 36 start to operate at the same time and stop at the same time. Further, the rotation speeds of the motors 35, 36 are the same, and the belt conveyor 12 and the discharge chute 46 are the same.
The up-and-down movement and the reciprocating rotation movement of are performed at the same cycle.

When it is detected that the object to be weighed supplied to the weighing device main body 2 as described above has reached an appropriate amount or more by a level sensor or a weight sensor (not shown) provided in the main body 2, an output signal thereof is output. By the motor 22,35,
36 will stop its operation, and will resume its operation when it receives a signal below the proper amount.

Further, the feeding speed of the feeding device 1 is increased when the amount of weighing in the weighing device main body 2 is increased, and conversely, the velocity is decreased when the amount is decreased.

The start, stop, speed adjustment and the like as described above are all appropriately performed under the control of a control circuit (not shown).

Effect of the Invention The invention is as described above, and the belt conveyor for laterally conveying the object to be weighed, which is easily entangled, vibrates in the vertical direction, and the inclined discharge chute that receives the object from this is the pivot point at the base end. Also, since the tip end side vibrates vertically around this pivot point, even if the objects to be weighed are entangled with each other and supplied to the conveyor belt conveyor, no human intervention is required on the conveyor belt and on the discharge chute that follows. Instead of being automatically loosened, it is loosened and then supplied to the weighing device body, during which the loosening work is performed very efficiently without the need for a worker to perform the loosening action. Has the effect of

Furthermore, the reciprocating motion of the belt conveyor and the discharge chute is
Since these are performed by a mechanism in which an outer ring provided at one end of a rotary eccentric disc is connected to the other end of a connecting rod that is rotatably fitted, there is an effect that a predetermined reciprocating motion is accurately performed by a simple mechanism. is there.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 above, FIG. 3 is a sectional view taken along line 3-3 above, and FIG. Partial slope view,
FIG. 5 is a perspective view of the discharge chute portion, and FIG. 6 is a schematic view showing a state in which the supply device according to the present invention is arranged in a conventional weighing system. 1 ... weighing device supply device, 11 ... machine frame 12 ... belt conveyor, 16 ... driving roller 17 ... driven roller, 18 ... conveyor belt 20,21 ... pulley, 22 ... motor 24 ... timing belt, 28 ... connection box 29, 29 '... Link rod, 30 ... Support plate 31,31' ... Link rod, 32, 32 '... Link 34 ... Support frame, 25, 36 ... Motor 40, 41 ... Rotating shaft, 42 ... Eccentric disc 43 ... Outer ring , 44 ... connecting rod 46 ... discharging chute, 47 ... supporting shaft 48 ... supporting arm, 48 ... connecting rod 50 ... eccentric disc, 51 ... outer ring 52 ... connecting rod

Claims (2)

[Scope of utility model registration request] 1. A belt conveyor which vertically oscillates while transporting an object to be weighed, which is easy to get entangled, and a base end of which is pivotally fixed to a discharge end of the belt conveyor and a front end of which is inclined downward, and An object to be weighed which is easily entangled in a combination weighing device characterized in that it has a discharge chute whose tip side vibrates vertically around the pivot point and a drive means for applying vibration to these belt conveyor and discharge chute. Supply device. 2. The vertical vibration of the belt conveyer and the discharge chute causes the eccentric disc rotated by the drive means to rotate the belt at the other end of the connecting rod rotatably fitted to the outer ring provided at the one end. The device for feeding objects to be weighed according to claim 1, wherein the device is connected to a conveyor and a discharge chute.