JPH069332Y2 - Goods supply equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field of the Present Invention> The present invention relates to an article supply device for simultaneously supplying articles to a plurality of weighing machines.

<Prior Art> For example, when packaging articles such as confectionery and confectionery which have different weights individually in a predetermined amount, a combination-type weighing machine has been conventionally used.

The combination-type weighing machine generally distributes the articles to be weighed, which are generally supplied to the central top from above, and supplies them to a plurality of weighing sections provided on the outer peripheral portion of the housing, and the weighing sections are weighed. It is configured such that an optimum combination close to a predetermined amount is selected from a combination of articles and then the selected articles are collectively discharged by a collecting chute or the like.

In order to supply articles from the manufacturing line to such a weighing machine, conventionally, a single conveying line which is continuous with the manufacturing line and extends to the central top of the weighing machine has been used.

Since the operating speed of such a weighing machine has a limit depending on the weighing time and discharging time, it is necessary to install a plurality of weighing machines in parallel and operate them simultaneously in order to weigh and discharge articles at a speed exceeding this limit. However, if an individual transfer line is provided for each weighing machine for that reason, the structure becomes large in scale and the supply management becomes complicated.

In order to solve this, it is necessary to branch the transfer line above a plurality of weighing machines.

As a technique for branching such a conveyance line, for example, Japanese Patent Application No. 55-187278 discloses that a switching cylinder vertically attached to a drop port of a storage tank is swung above a sorting body to move from the storage tank. A technique for distributing falling grains into two paths is disclosed.

However, since this method discharges the article through the cylinder, it has a problem that it can be applied only to something slippery such as powder or granules. It cannot be used as a feeder of a weighing machine for weighing various articles.

In addition, even if it is a slippery article, if it is a rod-shaped article with a large length, the article not completely discharged from the switching tube will be pinched between the switching tube and the sorting body and damaged. Or, the swing of the switching cylinder is hindered, so the distance between the switching cylinder and the sorting body must be made sufficiently large compared to the length of the goods, and the goods supply including the height dimension of the storage tank is required. The height of the device becomes very high, and the height above the weighing machine increases, which is disadvantageous in terms of structure and maintenance.

Further, as a method of allocating the article conveying line into a plurality of lines, since the height from the weighing machine to the upper side may be small, for example, as shown in FIG. It is conceivable that the rotary conveyor 2 formed so as to be freely movable distributes and supplies the two weighing machines 3 and 4.

In the case of this device, after an appropriate amount of articles has been conveyed and supplied to the weighing machine 3 on one side, in a state where the conveyance is stopped, the weighing machine 4 is rotated toward the weighing machine 3 on the other side, and the conveyance is restarted to deliver an appropriate amount of articles. The operation of supplying is repeated to supply the articles to the two weighing machines 3 and 4.

<Problems to be Solved by the Present Invention> However, since the weighing machine has a relatively large shape, in the above-described article supply apparatus, the rotation angle of the rotary conveyor 2 and the transport distance are increased. However, the mechanism for supporting and rotating it also becomes structurally large-scale.

Further, if the articles are supplied discontinuously as described above, the supply amount fluctuates greatly, and in the case of the combination type weighing machine, accurate weighing cannot be performed.

Furthermore, if the rotary conveyor 2 is largely rotated while the conveyance is stopped, there is a problem that articles near the carry-out section may fall to other than the weighing machine.

An object of the present invention is to provide an article supply device that solves such a problem.

<Means for Solving the Problems> In order to solve the problems, the article supply apparatus of the present invention is to supply articles to be weighed simultaneously to respective central tops of a plurality of weighing machines arranged apart from each other. An article supply device for carrying out, comprising: a casing disposed in an intermediate portion of the plurality of weighing machines, and a conveyance surface of a predetermined length opened upward, and one ends of the conveyance surfaces are close to each other. Then, the other end side is supported substantially horizontally on the casing so that the other end side is located above each central apex of the plurality of weighing machines, and the article received at one end side of the conveying surface is conveyed from the other end side. A plurality of transfer conveyors to be carried out, and a plurality of inclined surfaces for fixing the gap between the one end sides of the plurality of transfer conveyors from above to fix the articles falling from above to one end side of each of the transfer conveyors An approximately mountain-shaped distribution plate having One side has a conveying surface of a predetermined length that is opened, and one side of the conveying surface is supported substantially horizontally and horizontally rotatably on the casing so that one end side of the conveying surface is located above the distribution plate, and the conveying surface is conveyed. An oscillating conveyor that conveys articles on a surface and drops them out from the one end side, and an article to be weighed that is provided in the casing and is delivered from one end side of the oscillating conveyor is on one end side of all the conveyors. And a rotation drive device that drives the swing conveyor to rotate within an angular range in which the conveyor is continuously loaded.

<Operation> Because of the above-mentioned configuration, the article supply apparatus of the present invention
The articles received on the conveyor surface of the swinging conveyor that rotates horizontally by the rotation drive device are carried into one end of the conveyor surfaces of the plurality of conveyors from the one end side through the distribution plate, and each conveyor conveys the articles. It is conveyed almost horizontally above the central top of the weighing machine and is supplied to each weighing machine from the other end.

<Embodiment of the Invention> (FIGS. 1 and 2) Hereinafter, an embodiment of the invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an article supply apparatus of one embodiment for supplying articles to the two weighing machines of FIG. 2, and FIG. 2 is an entire weighing apparatus using the article supply apparatus of one embodiment. FIG.

In FIG. 1, reference numeral 11 denotes a housing of the article supply apparatus 10, which is formed in a substantially rectangular parallelepiped shape and has four legs 1 at the bottom.
Two are provided.

A rotation drive device 13 including a motor and a gear mechanism is provided inside the housing 11, and a rotation shaft 14 of the rotation drive device 13 projects from an upper surface portion 11 a of the housing 11. A swing conveyor 15 is attached to the rotary shaft 14.

The oscillating conveyor 15 has a conveying surface of a predetermined length whose upper side is open, and reciprocally rotates about a rotation shaft 14 on a horizontal plane parallel to the upper surface portion 11a of the housing 11 at a predetermined angle.

Reference numeral 16 denotes a conveyance driving device that conveys and drives the swing conveyor 15, and 17 denotes a guide member for guiding the conveyed articles from both sides. The swing conveyor 15 is driven by the conveyance driving device 16 so that one end of the conveyance surface is reached. The other end 15b while guiding the article received on the side of 15a by the guide member 17
To the side.

On both sides of the oscillating conveyor 15, a light projecting / receiving device including a light projecting device 18a that outputs light that traverses the transport path and a light receiving device 18b that receives this light is provided, and light from the light projecting device 18a to the light receiving device 18b is provided. When blocked, it is detected that the supply of articles is sufficient, and the light from the projector 18a is received by the light receiver 18b.
When the light is received at, it is detected that the supply is insufficient.

The other end 15b (carry-out side) of the swing conveyor 15 is connected to the housing 11
Is located above the conveyor support portion 11b that is formed on one end side of the conveyor support portion 11b.

First and second transfer conveyors 20 and 30 having transfer surfaces of predetermined lengths whose upper sides are opened and whose transfer directions are opposite to each other are provided on the conveyor support portion 11b at one end (loading portion) 2 thereof.
1, 1 and 31 are brought close to each other and are supported so as to be orthogonal to the swing conveyor 15.

Above the gap between the ends of the first and second conveyors 20 and 30, a distribution plate 35 formed in an inverted V shape is arranged so as to cover the gap from above. The distribution plate 35 receives the articles discharged from the swing conveyor 15 by the two inclined surfaces 35a and 35b, and receives the articles from the two conveyors 2.
It is carried into one end 21, 31 of 0, 30.

The first and second transfer conveyors 20 and 30 are driven and transferred in opposite directions by respective transfer drive devices (not shown), and the other ends 22 and 32 are discharged from the transfer conveyors 20 and 30, respectively. Discharge chute 2 for sliding the discharged articles to the respective weighing machines 40, 50 below.
7, 37 are attached.

In the figure, 23a, 23b, 33a, 33b are the first,
Light projectors and light receivers for detecting the amount of articles on the second conveyors 20, 30. Like the swing conveyor 15, light from the light projectors 23a, 33a is not received by the light receivers 23b, 33b, respectively. At this time, it is detected that the articles are sufficiently on the conveyor, and when the light is received, it is detected that the articles are insufficient. These light emitter / receiver and distribution plate 35 are fixed to guide members 38 and 39 provided on both sides of the conveyors 20 and 30, respectively.

FIG. 2 shows the article supply device 10 configured as described above.
The first and second weighing machines 40, 5 that are arranged side by side and are spaced apart from each other.
It is the schematic which shows the whole weighing | measuring equipment which was arrange | positioned in the middle of 0 and supplies goods to two weighing machines, and the goods supply apparatus 10 and the 1st, 2nd weighing machines 40 and 50 are base. It is arranged on the upper surface of the base 60.

The articles are supplied to the article supply apparatus 10 by a single supply conveyor 65 connected to a manufacturing line or the like.

The first and second weighing machines 40 and 50 are the same combination weighing machine, and although not described in detail, a plurality of weighing units (weighing machines, hoppers, etc.) provided on the outer peripheral portion of the article received at the central top portion thereof. )
The articles weighed and dispersed by each of the weighing units are combined into a predetermined amount, and the predetermined amount of articles are sequentially discharged from the collecting chutes 41 and 51 inserted through the base 60.

At the bottom of the collecting chutes 41, 51, filling devices 67, 6 are provided.
8 are provided. The filling devices 67, 68 are provided with a collecting chute 41, 5 on a packing tray 71 which moves on a packing conveyor 70 passing below the base 60 at predetermined intervals.
Every other item from 1 is filled.

The packaging tray 71 filled with the articles is the packaging conveyor 7
0 is transported to the packaging machine 80.

<Operation of the Embodiment> (FIG. 3) Next, the operation of the embodiment will be described.

When the articles to be weighed from the manufacturing line or the like are supplied to one end side of the swing conveyor 15 of the article supply apparatus 10 via the supply conveyor 65, the swing conveyor 15 rotates the rotary shaft 14 at a predetermined time. The article is conveyed to the other end side 15b while rotating at the moving angle.

Most of the articles discharged from the oscillating conveyor 15 are mostly when the other end 15b of the oscillating conveyor 15 is rotated toward the first conveyor 20 as shown in FIG. 3 (a). Although it is carried into one end side (carry-in side) of the first conveyor 20, a part of it is carried into the second conveyor 30 via the distribution plate 35.

Further, as shown in FIG. 3B, when the other end side 15b of the swing conveyor 15 is in the center of the distribution plate 35, the articles discharged from the swing conveyor 15 are almost evenly distributed by the distribution plate 35. The first and second transfer conveyors 20, which are distributed,
It will be loaded into 30.

When the oscillating conveyor 15 rotates to the side of the second conveyor 30, as shown in FIG. 3 (c), most of the articles are in the second area.
Is conveyed to the conveyor 30 of FIG.
It is carried in to the 1st conveyance conveyor 20 via.

Therefore, while the articles are on the oscillating conveyor, the articles are continuously supplied from the oscillating conveyor 15 to the first and second transfer conveyors 20 and 30 without interruption, so that the weighing machines 40 and 50 are provided. The supply of goods to the company is also made stable. Even if the thickness of the articles on the swing conveyor is uneven, the swing of the conveyor does not cause a large difference in the average amount of articles supplied to the two weighing machines.

In the weighing machines 40 and 50, the thus-supplied articles are weighed by a plurality of weighing units (not shown), and a combination close to the set weight is selected based on the weighing result. Collect chute 41, 51
To the filling devices 67 and 68.

The set amount of articles supplied to the filling devices 67 and 68 are stored in the packaging tray 71 every other item in synchronization with the conveyance of the packaging conveyor 70.

As a result, the packaging tray 71 containing the set amount of articles
Are continuously conveyed to the packaging machine 80 and are sequentially packaged.

Note that a light emitting / receiving device (not shown) is also provided in the supply portion of the weighing machines 40 and 50, and when the supply amount of the articles during the weighing operation is insufficient, a supply signal is sent to the corresponding transport conveyors 20 and 30. Is output, the articles are replenished, and when the articles on the transport conveyors 20 and 30 are insufficient, the timing of rotation switching of the swing conveyor 15 is adjusted based on the signals of the respective light projecting / receiving devices, and the articles are continuously supplied. It will be controlled so that a stable supply can be achieved.

<Other Embodiments of the Present Invention> In the above embodiments, the case where the articles are supplied to the two weighing machines has been described. However, for example, the distribution plate is formed into a pyramid shape, and more articles are conveyed to more conveyors. Alternatively, a large number of weighing machines may be operated in parallel.

<Effects of the Present Invention> As described above, the article supply apparatus of the present invention has the swing conveyor having the transfer surface whose upper side is open substantially horizontally, and continuously transfers the articles to one end side of the plurality of transfer conveyors which are close to each other. Since it is configured to rotate within an angular range that can be carried in, and to supply the articles to the plurality of weighing machines from each conveyor,
The height from the weighing machine to the top is small, and the structure can be made small.

Further, since the length of the swing conveyor does not depend on the distance between the weighing machines, the supporting mechanism and the rotating mechanism thereof are simplified. Also,
Regardless of the type of the article, the article can be stably supplied to the weighing machine, and the problem of dropping the article to other than the weighing machine is eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
It is a schematic diagram showing a weighing device to which the device of one example is applied. FIG. 3 is a schematic front view showing the operation of the main part of one embodiment,
FIG. 4 is a schematic top view showing an example of a conveyor rotating type device. 10 ... Article supply device, 11 ... Casing, 13 ... Rotation drive device, 15 ... Oscillating conveyor, 18a ... Projector, 1
8b ... Receiver, 20 ... First conveyor, 23a
...... Emitter, 23b ...... Receiver, 30 ...... Second conveyor, 33a ...... Emitter, 33b ...... Receiver, 35 ...
...... Distribution plate, 40, 50 …… Weighing machine, 67,68 …… Filling device, 70 …… Packaging conveyor, 80 …… Packing machine.

Claims (1)

[Scope of utility model registration request] 1. An article supply apparatus for simultaneously supplying articles to be weighed to respective central tops of a plurality of weighing machines arranged apart from each other, and a casing arranged in an intermediate part of the plurality of weighing machines. A body and a transporting surface of a predetermined length, the upper side of which is open, one end of the transporting surface being close to each other, and the other end side being positioned above each central top of the plurality of weighing machines. A plurality of conveyors that are supported substantially horizontally by the casing and convey articles received at one end side of the conveyance surface and carry them out from the other end side, and cover the gap between the one end sides of the plurality of conveyance conveyors from above. Fixed in a position, having a substantially mountain-shaped distribution plate having a plurality of inclined surfaces for carrying articles falling from above to one end side of each of the conveyors, and a conveyor surface of a predetermined length whose upper side is open, One end side of the transport surface is above the distribution plate A swing conveyor that is supported on the housing so as to be positioned substantially horizontally and rotatably in the horizontal direction and that conveys an article on a conveyance surface and drops it out from the one end side. A rotary drive device for rotationally driving the swing conveyor within an angular range in which articles to be weighed out from one end side of the swing conveyor are continuously loaded to one end side of all the transport conveyors. An article supply device characterized by the above.