JPH08271327A - Bar combination weighing machine - Google Patents

Abstract

PURPOSE: To smoothly carry bar articles without being broken to facilitate the selective weighing, and perform a corresponding selective weighing even when the combination result of the bar articles is a small number of pieces. CONSTITUTION: Bar articles are radially dispersed by a circular feeder 3 and fallen onto a linear feeder 5 through a falling opening part 3d. An aligning piece 7a on the guide surface of the linear feeder 5 guides the bar articles so as to be parallel to the aligning piece 7a. When the discharge door of a weighing hopper 11 selected by a combination is opened, the bar articles are discharged to a collecting funnel 15, and corrected so that the longitudinal direction is the sliding direction. An oscillating guide cylinder 25 solves the superposition, when present, of the bar articles by oscillation while receiving the side parts of the bar articles. The shutter plate of a discharge mechanism 30 horizontally opens and closes to discharge the bar articles in the aligned state downward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod-shaped combination weighing machine for weighing rod-shaped articles.

[0002]

2. Description of the Related Art Conventionally, a combination weighing machine has been used to weigh articles so as to have a predetermined weight. Figure 9
FIG. 4 is a diagram showing an outline of a conventional combination weighing machine, in which articles supplied from above are radially dispersed by an umbrella-shaped circular feeder 70, and a plurality of feeders 71 arranged at the peripheral portion of the circular feeder 70, It is stored in the lower hopper 72.

The articles stored in the hopper 72 are weighed by a weighing hopper 73 below the hopper 72, and a combination having a predetermined set weight is selected based on the measured value. The articles are discharged all at once from the weighing hoppers 73 that store the articles included in the selected combination, and the articles are collected and collected by the collecting chute 74. New articles are supplied to the emptied hoppers 72, 73, and thereafter, the same weighing and discharging operation is repeated, articles of a predetermined weight are sequentially discharged, and the bags are packed by a bagging device or the like.

[0004]

However, in the conventional combination weighing machine, the articles to be handled are particularly suitable for granules (whether they are rounded or rounded). Although it is possible to accurately perform the weighing and sorting operation by flowing smoothly, it is not suitable for rod-shaped articles having a predetermined length or more, and there is a disadvantage that flowing this rod-shaped article causes problems in each part. . That is, if the orientation of the rod-shaped article is not uniform, there is a problem that the article cannot be smoothly flowed on the device, such that the article can be held at an intermediate position, or a large number of pieces can easily move at once. Was there. Moreover, if the product is flown in a messy direction, the rod-shaped article is likely to be broken or damaged.

Further, in recent years, individual packaging has been carried out in small amounts, and even rod-shaped articles have come to be individually packaged in small numbers of about 5 to 20 pieces. Since the hoppers 72, 73 are configured to accommodate a large number of rod-shaped articles, the collecting chute 7 is finally
The number collected in 4 is a considerable number as a result of combining a plurality of these. As described above, in the conventional combination weighing machine, since the original unit to be combined is a large number, it is not possible to obtain a combination result in which the number after combination is a small number as described above.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to smoothly flow rod-shaped articles without breaking them, to facilitate sorting and weighing, and to reduce the number of combinations of these rod-shaped articles. An object of the present invention is to provide a rod-shaped combination weighing machine capable of performing sorting and weighing corresponding to this even in the case of a book.

[0007]

In order to achieve the above object, a rod-shaped combination weighing machine of the present invention distributes articles supplied from the outside in a plurality of directions, and weighs a predetermined amount in each direction.
A combination weighing machine which selects and collects articles in corresponding directions according to a combination of measured values and discharges the articles to the outside, as in claim 1, wherein a rod-shaped article provided at the top of the device and supplied from above ( W) is distributed in the radial direction, a protrusion (3c) is provided so as to project over the entire circumference of the outer peripheral edge portion to prevent the rod-shaped article from falling off, and a predetermined angle is provided in the vicinity of the protrusion. A circular feeder (3) provided with a plurality for each of the rod-shaped articles and provided with a drop opening (3d) corresponding to the length and thickness of the rod-shaped article, and provided below the circular feeder, and the circular feeder is rotated in the rotating direction. And a vibration mechanism (4) for vibrating the rod-shaped article to drop it from the dropping opening.

Further, as described in claim 2, the circular feeder is provided so as to extend in a radial direction from a lower portion of each of the drop openings (3d) and has a constant width corresponding to the length of the rod-shaped article. A linear feeder (5) provided with a guide surface (7) for transferring rod-shaped articles, and a plurality of alignment pieces (7a) having a predetermined height provided on the guide surface in a direction orthogonal to the longitudinal direction of the guide surface. ) And a vibrating mechanism (8) provided below the straight-moving feeder for vibrating the straight-moving feeder in the longitudinal direction to move the rod-shaped article along the guide surface.

Next, in the rod-shaped combination weighing machine according to the third aspect, a plurality of weighing hoppers (11) for weighing the rod-shaped articles (W) distributed in each direction and a plurality of weighing hoppers provided below the weighing hoppers are provided. A large-diameter arc-shaped introduction part (15a), which is provided independently and inclined, and which is located in the lower part of the weighing hopper, and a small-diameter arc-shaped discharge part (15b), which is located in the center of the device. And a gathering funnel (15) which has a substantially gutter shape in which the circular arc diameter is continuously variable in the lengthwise direction and correctively slides the rod-shaped article in the same lengthwise direction. .

Further, as described in claim 4, each of the plurality of collecting funnels (15) has a groove portion (15) provided at a lower portion thereof.
The engaging piece (15d) having e) can be configured to be attachable to and detachable from the device by engaging the pin (16) protruding from the device.

According to a fifth aspect of the present invention, an inclination is provided at a position lower than the discharge part (15b) where the plurality of collecting funnels (15) are collected, and drops the rod-shaped article in a substantially upright state. Collecting chute (1 with surface (17a)
7), a regulation plate (19) provided in the collecting chute, standing upright between the discharge portions of the collecting funnels, for preventing the rod-shaped articles from wrapping around, and guiding the rod-shaped articles only downward, and the regulation plate (19). Conical guides (20a, 20b) that are provided on the plate and that guide the flow of the rod-shaped articles only downward at positions separated by a predetermined distance from the guide surfaces of the collecting funnel and the collecting chute may be provided.

Next, a rod-shaped combination weighing machine according to claim 6 is provided at a lower end of the gathering chute (17) for gathering the rod-shaped articles (W) selected by the combination weighing. A hollow rocking guide tube (25) for receiving the side portions of the gathered rod-shaped articles and holding them in an upright state,
A vibrating mechanism (26) for rocking the rocking guide cylinder to align the rod-shaped articles inside in an upright state, and a lower part of the rocking guide cylinder for receiving the lower end of the rod-shaped article and horizontally rotating. Shutter plate (3
And a discharge mechanism (30) having (1, 32).

Next, the rod-shaped combination weighing machine according to claim 7 is provided at the uppermost portion of the device, and a circular feeder (3) for radially distributing the rod-shaped articles (W) supplied from above.
And a plurality of alignment pieces (7a) provided in the radial direction from the circular feeder and protruding in the direction orthogonal to the radial direction.
And a linear feeder (5) for delivering a small number of rod-shaped articles in an aligned state, and a weighing hopper provided below the discharge portion of the linear feeder and for weighing the rod-shaped articles (W) distributed in the respective directions. (11), a collecting funnel (15) provided in a substantially gutter shape extending from the lower part of the weighing hopper to the central part of the apparatus, and individually dropping and collecting rod-shaped articles discharged from each weighing hopper, and a collecting funnel of the collecting funnel. A shutter plate (31, 32) provided at the lower end portion for receiving the lower end portions of the gathered rod-shaped articles and dropping and discharging the rod-shaped articles downward by horizontal rotation.
And a discharge mechanism (30) having a plurality of radial directions, the rod-shaped articles being aligned in the plurality of radial directions both at the time of supply to the weighing hopper before combination and after being discharged from the weighing hopper after combination. It is characterized in that they are individually flown in a corrected state, and all are gathered and discharged in a standing state on the shutter plate.

[0014]

The bar-shaped article W loaded from the upper part of the weighing machine 2 is
When the vibrating mechanism 4 vibrates in the radial direction by the circular feeder 3 and vibrates in the rotating direction, the rod-shaped article W drops from the dropping opening 3d onto the linear feeder 5. Straight feeder 5
A plurality of aligning pieces 7a provided in a direction orthogonal to the transfer direction on the guide surface 7 of the rod-shaped article W are aligned in the lengthwise direction of the rod-like articles W and are fed to the intermediate hopper 10 or the weighing machine. A small number is supplied to the hopper 11. After weighing by the weighing hopper 11, when the discharge door of the weighing hopper 11 selected for combination is opened, the rod-shaped articles W inside are sent to the collecting chute 17 via the collecting funnel 15. The collecting funnel 15 is arranged in a slanting arc shape and has a shape in which the diameter of the arc is continuously changed from a large diameter to a small diameter. Therefore, no matter how the rod-shaped article W is discharged, the rod-shaped article W is removed. The collecting funnel 15 can be slid while being corrected in the length direction. A regulating member 19 is provided in the collecting chute 17, and the regulating body 19a and the conical guides 20a and 20b are provided.
This prevents overlapping of the rod-shaped articles W flowing from each direction. The rod-shaped article W has a swing guide tube 25,
It is received by the guide cylinder 28 and is collected within a predetermined range. Further, the lower end portion of the rod-shaped article W has shutter plates 31, 3
It is accepted by 2. The rocking guide tube 25 has a vibration mechanism 26.
The rocking causes the overlapping of the rod-shaped articles W to be eliminated. The shutter plates 31 and 32 rotate horizontally to eject all the bar-shaped articles W downward at once.

[0015]

EXAMPLES Examples of the rod-shaped combination weighing machine of the present invention will be described below. FIG. 1 is a perspective view (partially omitted) showing an outline of this rod-shaped combination weighing machine. To explain the outline of the device,
The rod-shaped articles are sequentially supplied from the uppermost position of the weighing machine 2 by the supply device. A circular cone-shaped feeder 3 is provided above the weighing machine 2. The circular feeder 3
After the rod-shaped articles are dispersed in a plurality of directions by the above method, a predetermined number of the rod-shaped articles are loaded into the intermediate hopper 10 via the linear feeders 5 provided in the respective directions.

Below the intermediate hopper 10, a weighing hopper 11 is provided.
Is provided for weighing the rod-shaped article. The rod-shaped articles housed in the respective weighing hoppers 11 form a combination unit, and the rod-shaped articles ejected by selecting a plurality of weighing hoppers 11 having a predetermined weight value are collected at the lower part of the apparatus via the collecting funnel 15. After being collected in 23, they are discharged downward from the discharging mechanism 30 and packed in a bag or the like. Incidentally, without providing the intermediate hopper 10,
The rod-shaped article may be directly supplied to the weighing hopper 11 from the linear feeder 5.

The above-mentioned components will be described below. 2A and 2B are a plan view and a side sectional view showing the circular feeder 3. The circular feeder 3 has a dispersion supply section 3a at the center and a horizontal section 3b having a predetermined width around the dispersion supply section 3a. A projecting portion 3c having a predetermined height is formed on the entire edge of the horizontal portion 3b. The distributed supply unit 3a
It may be formed in a conical shape as shown, or may be flat.

A plurality of drop openings 3d are formed at equal intervals between the horizontal portion 3b and the protruding portion 3c. The drop opening 3d is opened at least larger than the length and thickness of the rod-shaped article. A vibrating mechanism 4 is provided below the circular feeder 3. The vibrating mechanism 4 vibrates the circular feeder 3 in the direction of the arrow (rotation direction) shown.

3 (a) and 3 (b) show the straight feeder 5
FIG. 3 is a plan view and a side sectional view showing FIG. This straight feeder 5
Are provided radially from the lower portions of the respective drop openings 3d of the circular feeder 3. One end of the straight feeder 5 is a receiving portion 5a, and the receiving portion 5a is a drop opening 3d.
It is located on the inner side and has a substantially constant width (width longer than the length of the rod-shaped article) between the receiving portion 5a and the discharging portion 5b at the other end.
Is bent upright.

A plurality of alignment pieces 7 are provided on the horizontal guide surface 7.
a is formed so as to continuously project in a direction orthogonal to the longitudinal direction of the guide surface 7. The alignment piece 7a is inclined upward in the feed direction of the rod-shaped article by a protrusion amount equal to or smaller than the thickness of the rod-shaped article so as to protrude upward. The receiving part 5a
Only the alignment piece 7a close to is inclined in the receiving portion 5a direction. A vibrating mechanism 8 is provided below the linear feeder 5. The vibrating mechanism 8 vibrates the linear feeder 5 in the direction of the arrow (length direction) shown. Further, the linear feeder 5 located directly below the drop opening 3d of the circular feeder 3 is provided with an article detection means 9 composed of an optical sensor at a predetermined height position to detect the staying amount of the rod-shaped articles falling at the location. , The detection signal is sent to the control unit.

A general-purpose intermediate hopper 10 and a weighing hopper 11 are provided below the discharging portion 5b of the straight feeder 5. The intermediate hopper 10 shown in FIG. 1 accommodates a predetermined number of rod-shaped articles sent from the straight feeder 5, and supplies them to the lower weighing hopper 11. The weighing hopper 11 weighs a predetermined number of rod-shaped articles discharged from the intermediate hopper 10 with a load cell (not shown) and sends a weighing value to the control unit.

A specified weight value is stored in advance in the control unit, and a plurality of weighing hoppers 11 are set so that the specified weight value is obtained.
The respective weighing values sent from the above are selected and combined, and the discharge of the rod-shaped articles accommodated in the corresponding weighing hopper 11 is controlled.

FIGS. 4A, 4B and 4C are a plan view, a side sectional view and a front view showing the collecting funnel 15, respectively. The collecting funnel 15 is formed in an arc shape as shown in the front view, and the diameter of the arc is continuous in the length direction so that the introduction portion 15a at one end has a large diameter and the discharge portion 15b at the other end has a small diameter. It has a substantially gutter-like shape. Introductory part 1
5a is provided with a bent piece 15c for preventing the stick-shaped article from falling off. An engaging piece 15d for attaching / detaching to / from the apparatus is provided on the lower portion of the collecting funnel 15. Engaging piece 15d
A groove 15e having a predetermined diameter is formed in the groove.

FIG. 5 is a side sectional view of a collecting device 23 including the collecting funnel 15, and FIG. 6 is a plan view of the collecting device 23. As shown in FIG. 6, each collecting funnel 15
Groove portion 15e of engaging piece 15d on pin 16 protruding from the housing
Are provided by engaging. As a result, the introducing portion 15a of the collecting funnel 15 is located under each weighing hopper 11, and as shown in FIG. 5, each collecting funnel 15 is inclined at a predetermined angle and the discharging portion 15b is located at one central position. Be assembled in. At this time, the collecting funnels 15 are arranged radially with a predetermined gap.

As shown in FIG. 5, the discharge portion 1 of the collecting funnel 15
5b is positioned so as to overlap the collecting chute 17.
The collecting chute 17 has a substantially conical shape having a predetermined opening diameter and an inclination angle. As shown in the drawing, the inclined surface 17a has one end corresponding to the inclination angle of the collecting funnel 15 and the other end having a substantially vertical angle, and has a predetermined curvature that continuously changes between them. In the gathering chute 17,
A regulation member 19 is provided.

As shown in FIG. 6, the restricting member 19 is composed of a plurality of restricting plates 19a standing upright between the collecting funnels 15 and a conical guide 20 provided at the center of these restricting plates 19a. Composed. The conical guides 20 are provided on the upper part and the lower part of the regulation plate 19a, and are provided at positions separated by a predetermined distance from the guide surfaces of the collecting funnel 15 and the collecting chute 17, respectively. The upper cone guide 20a has a large diameter and the lower cone guide 20b has a small diameter rocket shape.

Here, the regulating plate 19a is provided for each collecting funnel 15
This is for restricting the rod-shaped article flowing in the lower part of the collecting chute 17 so as not to go around in the rotation direction of the collecting chute 17 (without being immediately assembled with the rod-shaped article of another collecting funnel 15). This regulation plate 19a,
The restricting member 19 including the conical guides 20a and 20b is detachably mounted so as to fit in the collecting chute 17.

A lower portion of the collecting chute 17 is provided with a substantially conical swing guide cylinder 25 having a hollow interior, an upper opening having a large diameter, and a lower opening having a small diameter. The rocking guide tube 25 is pivotally supported by shafts 25a provided on both sides of the collecting chute 17, and bidirectionally about the shaft 25a by a vibration mechanism 26 provided on a side part of the rocking guide tube 25. Can swing freely. The vibration mechanism 26 includes a motor 26a as a drive source, a cam 26b provided on a rotation shaft of the motor 26a, and an arm 26c connected between an eccentric position of the cam 26b and the swing guide cylinder 25. By driving the motor 26a, the swing guide cylinder 25 swings around the shaft 25a in the direction of the arrow in the figure.

A similar hollow conical guide tube 28 is provided below the swing guide tube 25. The rocking guide cylinder 25 and the guide cylinder 28 receive the side portions of the rod-shaped articles dropped from the collecting chute 17, as will be described later, and accommodate all the rod-shaped articles W within the opening diameter of the lower portion of the opening of the guide tube 28. The guide cylinder 28 may not be provided, and only the single swing guide cylinder 25 may be provided.

Below the guide cylinder 28, there is provided a discharge mechanism 30 for receiving and discharging the lower end of the rod-shaped article. FIGS. 7A and 7B are a side sectional view and a plan view showing the discharging mechanism 30 portion. The discharge mechanism 30 has two shutter plates 31 and 32 that move in the horizontal direction. At least the shutter plates 31 and 32 are guide tubes 25 and 28.
It can be opened and closed freely within the range of the diameter of the lower part of the opening. The shutter plates 31 and 32 are rotatable about shafts 31a and 32a, respectively, and are opened and closed by an opening / closing mechanism 33. The opening / closing mechanism 33 includes a cylinder 33a and a link arm 33b, and an operating piece of the cylinder 33a is connected to the shutter plates 31 and 32 via the link arm 33b.

Therefore, in the state where the operating piece of the cylinder 33a is projected, each shutter plate 31,
32 is closed by the contact surfaces 31b and 32b contacting each other. On the other hand, when the operating piece of the cylinder 33a is contracted, FIG.
As described above, the shutter plates 31, 32 are horizontally rotated and opened about the shafts 31a, 31b in the directions in which the joint surfaces 31b, 32b are separated from each other.

The lower surfaces of the shutter plates 31 and 32 are placed on a low friction plate material 35 such as resin so that sliding friction at the time of opening / closing is reduced as much as possible. Then, the shutter plate 31,
32, the low friction plate 35 and the base 3
6, discharge openings 35 are formed, and the stick-shaped articles are discharged downward from the discharge openings 35 by opening the shutter plates 31 and 32.

A packaging machine is provided below the discharge opening 35, that is, below the apparatus. The packaging machine packages a predetermined number of rod-shaped articles after the combination.

Next, the operation of each component and the operation of the entire apparatus having the above-mentioned configuration will be described. In this rod-shaped combination weighing machine, the number of rod-shaped articles W finally discharged after combination is 5 to 2
There are 0 and a small number. The feeding device provided above the central position of the circular trough 3 feeds the rod-shaped article W onto the circular feeder 3. The supplied rod-shaped articles W are dispersed in the radial direction by the dispersion supply section 3a of the circular feeder 3 as shown in FIG. 2 (a), and fall from the drop openings 3d.

When the power of the apparatus is turned on, the vibrating mechanism 4
And the circular feeder 3 is vibrated in the direction of the arrow in the figure, the rod-shaped article W deviated from the position of the drop opening 3d is also moved in the direction of the arrow while being in contact with the protrusion 3c. The center of gravity (center) of W is the opening 3d for dropping.
When it moves into the opening, the drop 3d falls. At this time, since the drop opening 3d is formed corresponding to the length and the thickness of the rod-shaped article W, as shown in the figure, the drop-shaped opening 3d does not matter which state the rod-shaped article W is in. It becomes possible to drop the rod-shaped articles W in the same direction corresponding to the opening direction of 3d. The straight feeder 5 is provided on the drop position.

The circular feeder 3 continuously supplies the rod-shaped articles W to each of the straight-moving feeders 5 provided in the radial direction. Among them, the receiving portions 5a of all the straight-moving feeders 5 detect the article detecting means 9 When it is detected that the rod-shaped article W stays beyond the height position (predetermined amount) at which is provided, the control unit to which this detection signal is input stops the supply of the rod-shaped article from the supply device. Let The supply of the rod-shaped article W from the supply device is restarted at a time point when the article-detecting unit 9 no longer detects the retained rod-shaped article W on the linear feeders 5 at about 3 to 5 locations (the retention of the rod-shaped article W is The control unit determines (when it is canceled) and restarts.

The rod-shaped article W dropped on the straight feeder 5 is
Although it is almost aligned on the receiving portion 5a, it may be slightly tilted as shown in FIG. 3A depending on the falling state. However, the linear feeder 5 is moved in the same direction as the transfer direction of the rod-shaped article W by the vibrating mechanism 8 (the arrow direction in the figure).
Therefore, the rod-shaped articles W can be discharged in the aligned state from the discharging section 5b. Further, since a plurality of aligning pieces 7a oriented in the direction orthogonal to the transfer direction are provided on the guide surface 7 of the linear feeder 5, the bar-shaped article W rides on each of the aligning pieces 7a and passes each time. Thus, it becomes possible to align the length direction of the rod-shaped articles W in the direction orthogonal to the transfer direction.

Further, since a plurality of the aligning pieces 7a are provided, it becomes possible to receive as many rod-shaped articles W as the number corresponding to the space between the aligning pieces 7a. On the side of 5a, it is possible to discharge a small number of rod-shaped articles W, for example, one by one, from the discharge section 5b, while retaining a predetermined amount of the rod-shaped articles W. The discharge of each small number can be changed by the vibration width of the vibration mechanism 8.

In this weighing machine, each straight feeder 5
Discharged from the intermediate hopper 10 (or the weighing hopper 1
The number of rod-shaped articles W before combination supplied to 1) is 2 to
There are three. The intermediate hopper 10 opens the discharge door after a predetermined time, and supplies a predetermined number of rod-shaped articles W housed inside to the weighing hopper 11. If the intermediate hopper 10 is not provided,
A predetermined number of rod-shaped articles W are directly put into the weighing hopper 11. Here, even when the intermediate hopper 10 is not provided, since the small number of rod-shaped articles W are supplied from the straight-line feeder 5, the weighing hopper 11 can weigh a small number of rod-shaped articles W. become able to.

The control unit is supplied with the measured values of about two to three rod-shaped articles W housed in each weighing hopper 11. Then, the weighing hoppers 11 having a combination close to the total weight value corresponding to 5 to 20 to be finally combined are selected. Then, by opening the discharge door of the selected weighing hopper 11, all the rod-shaped articles W after the combination are collected in the collecting device 23. Here, the storage state of the rod-shaped articles W in the intermediate hopper 10 and the weighing hopper 11 is in a state in which the aligned state is broken, but this itself does not hinder weighing, and discharge can be performed at the opening of the discharge door. It will be good.

The rod-shaped article W is introduced into the introduction portion 15 of the collecting funnel 15.
After being introduced into a, it is transferred to the lower discharge part 15b with the inclination of the collecting funnel 15. This assembly funnel 15
Has an arc shape as shown in FIG.
As the rod-shaped articles W are discharged from the weighing hopper 11 in any manner, all the rod-shaped articles W are formed as shown in FIG.
As shown in FIG. 4, the rod W can be transferred to the discharge portion 15b through almost the center of the collecting funnel 15 (the lowermost surface position of the collecting funnel 15), and the rod-shaped article W is straightened in the length direction of the collecting funnel 15. Can be slid.

By the combination selection, a plurality of rod-shaped articles W simultaneously flow on the plurality of collecting funnels 15. However, all the rod-shaped articles W that have flowed to the respective discharge portions 15b are collected in the collecting chute 17. To be done. Since the collecting chute 17 has a predetermined curvature that continuously changes up to a substantially vertical angle, the rod-shaped article W is changed from the inclination angle of the collecting chute 17 to the standing state in a short distance (short time). be able to.

At this time, the conical guides 20a and 20b provided at the central portion of the regulating member 19 are, as shown in FIG.
The flow of the rod-shaped articles W is guided at positions separated by a predetermined distance from the guide surfaces of the collecting funnel 15 and the collecting chute 17, respectively. As a result, the rod-shaped article W becomes the other collecting funnel 15
It does not flow in any direction and can flow all down. Further, the conical guides 20a and 20b have an action of receiving and returning the rod-shaped articles W in the opposite direction even when the rod-shaped articles W jump up from the surface of the collecting chute 17. The conical guides 20a and 20b allow the rod-shaped articles W to pass in a substantially upright state in the lower portion (small-diameter portion) of the collecting chute 17, and the rod-shaped articles W run on the small-diameter portion. Problems such as overlapping and clogging are prevented.

Further, the collecting chute 17 is provided with a restricting member 19, and at the initial stage when the collecting chute 17 is transferred from the collecting funnel 15 to the collecting chute 17, as shown in FIG. The moving direction in the funnel 15 is restricted only to the lower side. That is, the regulation plate 19a
Without collecting the rod-shaped articles flowing through each collecting funnel 15 in the rotating direction of the collecting chute 17, the other collecting funnels 1
Since the rod-shaped articles W of No. 5 are not immediately assembled but dropped downward, the rod-shaped articles W are prevented from overlapping each other in the initial stage of this assembly.

The bar-shaped article W which is regulated by the regulation member 19 and drops downward from the collecting chute 17 is stopped with its lower end placed on the shutter plates 31 and 32 of the discharging mechanism 30. At this time, the side portion of the rod-shaped article W is received by the swing guide cylinder 25 and the guide cylinder 28, and this standing state is maintained. Since each of the guide cylinders 25, 28 has a large diameter at the upper portion of the opening and a small diameter at the lower portion of the opening, the plurality of rod-shaped articles W received are all accommodated within the diameter of the lower portion of the opening.

Here, it is assumed that the rod-shaped articles W in the guide cylinders 25 and 28 overlap each other. This overlap is
If the dropping state of the rod-shaped articles W discharged from each of the plurality of weighing hoppers 11 is different, it is likely to occur when the timing of accommodation in the guide cylinders 25 and 28 is slightly different. That is, as shown in FIG.
There is a case where the lower end of the rod-shaped article Wo after that does not reach on the shutter plates 31 and 32 while the vicinity of the lower end of the rod-shaped article Wo that has dropped afterwards is in contact with the vicinity of the upper end of the same. When this phenomenon occurs, even if the shutter plates 31 and 32 are opened, the rod-shaped articles W are discharged in the state of being overlapped with each other. Therefore, in the present invention, the rocking guide tube 25 is rocked by the rocking mechanism 26,
The overlapping of the rod-shaped articles W that have become the assembled state after the combination is eliminated.

The swing guide cylinder 25 is axially supported by the collecting chute 17 about the shaft 25a, and when the motor 26a of the vibration mechanism 26 is driven, the cam 26b rotates, and the eccentric position of the cam 26b is set. The rocking guide cylinder 25 is connected to the shaft 25a by an arm 26c connected to the rocking guide cylinder 25.
It swings in the direction of the arrow in the figure around. As a result, the bar-shaped articles Wo in the overlapped state fall between the previous bar-shaped articles W, and the lower end portions of all the bar-shaped articles W are shutter plates 31, 32.
Can be placed on top. As in the above embodiment, the guide cylinders 25 and 28 are configured in two stages. The lower guide cylinder 28 keeps the side portion of the rod-shaped article W even while the upper swing guide cylinder 25 is rocking. This is for receiving at a fixed position, and even if at least the upper swing guide cylinder 25 is provided, the same effect of preventing overlap can be obtained.

Next, the control unit opens the shutter plates 31 and 32 of the discharging mechanism 30 after a predetermined time has elapsed after discharging the rod-shaped article W from the weighing hopper 11. Here, as the actuating piece of the cylinder 33a of the opening / closing mechanism 33 is contracted,
As shown in (c), each shutter plate 31, 32 has a shaft 31a, 31
The joint surfaces 31b and 32b are horizontally rotated and opened in a direction away from each other around b. These shutter plates 31, 3
Since the lower surface of 2 is placed on the low friction plate material 35 such as resin, sliding friction at the time of opening and closing is reduced as much as possible.

At the lower positions of the shutter plates 31, 32, discharge openings 35 are formed in the low friction plate material 35 and the base 36, respectively.
By opening 32, the rod-shaped article W whose lower end portions are placed on the upper surfaces of the shutter plates 31 and 32 is discharged downward from the discharge opening 35. At this time, the shutter plates 31, 32
Since it is configured to slide in the horizontal direction, all the rod-shaped articles W that have been placed can be dropped and discharged all at once in the same state, and there is no difference in speed between the rod-shaped articles W.

The rod-shaped article W discharged from the discharge opening 35
Are packaged by the packaging machine at the bottom of the device. This packaging machine prepares a packaging body having an opened upper part, accommodates the rod-shaped article W falling from the discharge opening 35 in the packaging body, and then adheres the upper end portion of the packaging body and carries it out. Here, the discharging mechanism 30 on the weighing machine side is configured by the shutter plates 31 and 32.
Since all the predetermined number of rod-shaped articles W after the combination are dropped and discharged all at once, it is possible to easily store them in this package.

By the way, each part of the weighing machine can be easily removed for maintenance, cleaning and the like. In particular, the gathering funnels 15 provided radially are the units before each combination,
That is, since the weighing hoppers 11 are divided and provided in the number corresponding to the lower part, the operability at the time of attachment and detachment is good. Also,
As shown in FIG. 6, each collecting funnel 15 is attached to the device in a state in which the groove 16e of the engaging piece 15d is simply engaged with the pin 16 protruding from the housing.
The attachment / detachment operation itself can be easily performed. Further, according to the present weighing machine, since the rod-shaped articles W after combination are discharged in an upright and aligned state, discharge to a next-stage device such as a packaging machine can be facilitated and delivery can be facilitated. At the same time, the next-stage device does not require an aligning device for aligning the rod-shaped articles W again, and as a result, the entire structure can be made small and manufactured at low cost.

[0052]

According to the first aspect of the invention, a plurality of drop openings corresponding to the length and thickness of the rod-shaped article are provided all around the edge of the circular feeder into which the rod-shaped article is put. When the vibrating mechanism vibrates in the rotational direction, the radially dispersed rod-shaped articles are aligned and dropped downward from the dropping opening, so that the rod-shaped articles can be easily dispersed.
Further, according to the present invention, the rod-shaped article dropped from the circular feeder is transported along the guide surface of the linear feeder, and a plurality of aligning pieces are provided on the guide surface so as to project in the direction orthogonal to the longitudinal direction. The rod-shaped article can be discharged while being aligned in a state parallel to the alignment piece. According to the third aspect, the plurality of collecting funnels are provided in the lower portion of each weighing hopper in a divided state, so that the rod-shaped articles discharged from each weighing hopper do not mix with other units. This collecting funnel has an arc shape and a gutter shape in which the diameter of the arc can be changed from a large diameter to a small diameter, so no matter what the posture of the rod-shaped article discharged from the weighing hopper, it slides while flowing through the collecting funnel. The direction can be corrected. This collecting funnel is divided into a plurality of pieces, and the engaging pieces are attached by engaging with the pins of the housing, so that the collecting funnel can be easily attached and detached during maintenance and cleaning. Become.

As described in claim 5, since the collecting chute is provided in the lower part of the collecting funnel and the regulating plate and the conical guide are provided on the collecting chute, the collecting chute after the weighing is performed by each weighing hopper. When the rod-shaped articles are gathered from a plurality of respective weighing positions on a gathering chute in the center of the device via a gathering funnel, the rod-shaped articles can be dropped in an upright state by a predetermined inclined surface of the gathering chute. ,
It is easier to collect rod-shaped articles together, and
Since the rod-shaped articles are prevented from wrapping around and are guided only downward by the restriction plate and the conical guide, it is difficult for the rod-shaped articles to overlap each other when they are assembled. As described in claim 6, a swinging hollow swing guide tube is provided in the lower part of the collecting chute, and the rod-shaped article has its side portion received by this swing guide tube and the lower end portion by the shutter plate. The configuration is Accordingly, even if the bar-shaped articles in the rocking guide cylinder overlap with each other, the rocking guide cylinder can be aligned by simply rocking the rocking guide cylinder. Further, since the shutter plate is opened and closed horizontally, it is possible to discharge the rod-shaped articles downward with the bar-shaped articles aligned. Further, as described in claim 7, the rod-shaped articles are dispersed by the circular feeders, and are fed to the weighing hoppers aligned by the linear feeders provided in the dispersing direction, respectively, and the rod-shaped articles discharged from the respective weighing hoppers are discharged. Even if the item to be weighed is a rod-shaped article, each component can be flowed in an aligned state suitable for this, even if the item to be weighed is a rod-shaped article, which can be combined without breaking. The weighing operation can be performed smoothly. In addition, the rod-shaped articles after the combination are gathered upright on the shutter plate, and the shutter plate is configured to be opened and closed in the horizontal direction to discharge, so that the rod-shaped articles can be discharged in the most suitable posture for alignment, This aligned state does not easily collapse even when discharged, and the delivery to the subsequent device can be facilitated. Further, since the linear feeder provided with the aligning piece is capable of supplying a small number of rod-shaped articles to the weighing hopper, it is possible to reduce the number of units for combined weighing to a small number, and thus the combination is possible. It becomes possible to easily cope with a combination weighing operation in which the number of the subsequent lines becomes a small number.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a rod-shaped combination weighing machine.

2A and 2B are a plan view and a side sectional view showing a circular feeder.

3A and 3B are a plan view and a side sectional view showing a straight feeder.

4 (a), (b) and (c) are a plan view, a side sectional view and a front view respectively showing a collecting funnel.

FIG. 5 is a side sectional view of a collecting device including a collecting funnel.

FIG. 6 is a plan view of the collecting apparatus.

7A and 7B are a side sectional view and a plan view showing a discharging mechanism.

FIG. 8 is an operation diagram showing a swinging state of the swinging guide cylinder.

FIG. 9 is a diagram showing an outline of a conventional combination weighing machine.

[Explanation of symbols]

2 ... Weighing machine, 3 ... Circular feeder, 3d ... Drop opening,
4 ... Vibration mechanism, 5 ... Straight feeder, 7 ... Guide surface, 7a ...
Alignment piece, 8 ... Vibration mechanism, 11 ... Weighing hopper, 15 ... Collecting funnel, 15d ... Engaging piece, 15e ... Groove part, 16 ... Pin, 17 ... Collecting chute, 19 ... Restricting member, 19a ... Restricting plate, 20a, 20b ... Cone guide, 25 ... Oscillation guide cylinder, 26 ... Vibration mechanism, 28 ... Guide cylinder, 30 ... Ejection mechanism, 31, 32 ... Shutter plate, W ... Rod-shaped article.

Claims (7)

[Claims] 1. A combination in which articles supplied from the outside are distributed in a plurality of directions, a predetermined amount is weighed in each direction, articles in the corresponding directions are selected based on a combination of measured values, and the articles are collected and discharged to the outside. In a weighing machine, a dispersion supply unit (3a) provided at the uppermost part of the device for radially distributing a bar-shaped article (W) supplied from the top, and a bar-shaped article projecting over the entire circumference of the outer peripheral edge portion. A circular shape provided with a protruding portion (3c) for preventing the falling of the rod, and a plurality of dropping openings (3d) provided at a predetermined angle in the vicinity of the protruding portion and corresponding to the length and the thickness of the rod-shaped article. A feeder (3); and a vibration mechanism (4) provided below the circular feeder for vibrating the circular feeder in the rotation direction to drop the rod-shaped article from the dropping opening. A rod-shaped combination weighing machine. 2. An opening (3) for each drop of the circular feeder.
d) A guide surface (7) which is provided so as to extend from the lower portion in a radial direction and has a constant width corresponding to the length of the rod-shaped article, and which transports the rod-shaped article, and a longitudinal direction of the guide surface on the guide surface. A straight feeder (5) provided with a plurality of alignment pieces (7a) having a predetermined height in a direction orthogonal to the direction, and a straight feeder (5) provided below the straight feeder and vibrating the straight feeder in the longitudinal direction to guide a rod-shaped article. The rod-shaped combination weighing machine according to claim 1, further comprising a vibration mechanism (8) for transporting along a surface. 3. A combination in which articles supplied from the outside are distributed in a plurality of directions, a predetermined amount is weighed in each direction, and articles in the corresponding directions are selected and aggregated according to a combination of measurement values and discharged to the outside. In the weighing machine, a plurality of weighing hoppers (11) for weighing the rod-shaped articles (W) distributed in the respective directions, and a plurality of weighing hoppers provided below the plurality of weighing hoppers are provided independently and inclined. It has a large-diameter arc-shaped introduction part (15a) located in the lower part of the weighing hopper and a small-diameter arc-shaped discharge part (15b) located in the central part of the device. A rod-shaped combination weighing machine, comprising: a continuously variable and substantially gutter-shaped aggregate funnel (15) for straightening and sliding a rod-shaped article in the same length direction. 4. The engaging pieces (15) each having a groove (15e) provided in a lower portion of each of the plurality of collecting funnels (15).
The rod-shaped combination weighing machine according to claim 3, wherein d) is detachably attached to the device by engaging a pin (16) protruding from the device. 5. An inclined surface (17a) which is provided at a lower position from a discharge portion (15b) where the plurality of collecting funnels (15) are collected, and which drops a rod-shaped article in a substantially upright state.
And a regulating plate (19) provided in the collecting chute and standing between the discharge parts of the collecting funnels to prevent the rod-shaped articles from wrapping around and guide the rod-shaped articles only downward. ), And a conical guide (20a, 20b) provided on the regulation plate and guiding the flow of the rod-shaped articles only downward at a position separated by a predetermined distance from the guide surfaces of the collecting funnel and the collecting chute. 3. The rod-shaped combination weighing machine described in 3. 6. A combination in which an article supplied from the outside is distributed in a plurality of directions, a predetermined amount is weighed in each direction, articles in the corresponding direction are selected and combined according to a combination of measured values, and the article is discharged to the outside. In a weighing machine, a collecting chute (17) for collecting the bar-shaped articles (W) after being selected by the combination weighing, and a stand provided at the lower end of the collecting chute for receiving the side portions of the collected bar-shaped articles. A hollow swing guide tube (25) to be held in a state, a vibrating mechanism (26) for swinging the swing guide tube to align the rod-shaped articles inside in an upright state, and a lower part of the swing guide tube A discharge mechanism (30) having a shutter plate (31, 32) which is provided at the bottom to receive the lower end of the rod-shaped article and drops the rod-shaped article downward by horizontal rotation.
And a rod-shaped combination weighing machine. 7. A combination in which articles supplied from the outside are distributed in a plurality of directions, a predetermined amount is weighed in each direction, articles in the corresponding directions are selected by a combination of measurement values, and the articles are collected and discharged to the outside. In a weighing machine, a circular feeder (3) which is provided at the top of the device and which distributes the rod-shaped articles (W) supplied from above in the radial direction, and a plurality of circular feeders provided in the radial direction from the circular feeder, A straight feeder (5) having a plurality of aligning pieces (7a) projecting in the orthogonal direction and sending out a small number of rod-shaped articles in an aligned state, and a straight feeder (5) provided below the discharging portion of the straight feeder and provided in each of the directions. Weighing hopper (1) for weighing the dispensed rod-shaped articles (W)
1), a collecting funnel (15) which is provided in a substantially gutter shape from the lower part of the weighing hopper to the central part of the apparatus, and which individually collects rod-shaped articles discharged from each weighing hopper, and a lower end of the collecting funnel. And a discharge mechanism (30) having shutter plates (31, 32) for receiving the lower ends of the collected rod-shaped articles and dropping and discharging the rod-shaped articles downward by horizontal rotation. Is supplied individually to the weighing hopper before the combination and after being discharged from the weighing hopper after the combination, and is individually flowed in a state in which the alignment state is corrected for each of the plurality of radial directions, and is discharged onto the shutter plate. A bar-shaped combination weighing machine characterized by being collected and discharged in a standing state.