JP4188772B2 - Combination weighing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a linearly arranged combination weighing device.
[0002]
[Prior art]
In the case of a combination weighing device with a linear arrangement, when an article is supplied from a charge hopper to a trough, there is a problem that the supply amount to the left and right ends of the linear arrangement is reduced. Therefore, a swing-type supply device that supplies articles individually to each trough upstream of supply to the trough has been proposed (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP 59-063525 A (page 1-5, FIG. 6)
[0004]
[Problems to be solved by the invention]
However, in the apparatus of Patent Document 1, since articles are individually supplied from the charge hopper to the trough via the swing unit, the total supply amount can be stabilized, but the processing speed is slow.
[0005]
Accordingly, an object of the present invention is to provide a stable supply to each weighing hopper without reducing the processing speed in a linearly arranged combination weighing device.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a combination weighing device of the present invention includes a charge hopper that stores articles, and a plurality of troughs that are arranged in parallel to each other and vibrate the articles received from the charge hopper and convey the articles downstream. A plurality of pool hoppers that are individually arranged downstream of the troughs and temporarily store articles supplied from the troughs; and a plurality of weighing hoppers that receive supply of articles from the pool hoppers. And a plurality of troughs in a direction substantially orthogonal to the conveying direction of the articles by the trough, and a leveling member disposed downstream of the charge hopper and above the trough. Moving means for moving the leveling member so as to traverse the upper side of the door, and the articles on the individual troughs are moved by the movement of the leveling member. And not come, characterized in that to reduce the difference of a plurality of troughs each other goods quantity.
[0007]
According to the present invention, since the leveling member engages with the raised portion of the article and carries it to the troughs on the left and right ends, it is easy to eliminate the unevenness of the article for each trough.
[0008]
In addition, if the leveling member is formed of a leveling plate, the leveling member is free from irregularities, so that the cleaning property is improved.
[0009]
Further, by making the movement of the leveling member by the moving means a reciprocating movement, the unevenness of the articles can be sufficiently eliminated. This is because if the movement is made in one direction, the bias may not be sufficiently resolved.
[0010]
Further, a pair of the leveling members are provided so as to face each other, the leveling members are supported so as to be rotatable only in one direction around a substantially horizontal axis, and the rotation directions of the pair of leveling members are opposed to each other. It is preferably set to rotate toward the leveling member.
After one leveling member moves in the first direction and rakes up the article while stirring the article, the article collects at one leveling member. Since the member is carried in the second direction, it is possible to prevent the article from being raised at one end.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
overall structure:
FIG. 1 is a partially broken side view of the combination weighing device, and FIG. 2A is a cross-sectional view taken along the line II-II in FIG.
In FIG. 1, the combination weighing device includes a charge hopper 10, a trough 30 _i , a combination unit 4, and a collective discharge chute 7 from above to below. The charge hopper 10 performs storage of goods, supplies to drop the articles M to the storage to the trough 30 _i.
[0012]
As shown in FIG. 2A, a plurality of the troughs 30 _i are provided in the left-right direction (direction substantially orthogonal to the article conveyance direction) Y. The trough 30 _i shown in FIG. 1 is formed in a long linear shape along the article conveyance direction X, is vibrated by a vibrator provided below, and the article M received from the charge hopper 10 is conveyed by the vibration in the conveyance direction X. The article M is dropped and supplied to the combination unit 4 in FIG.
[0013]
The combination unit 4 weighs the supplied articles M, combines them together, and drops them onto a collective discharge chute 7 provided below. The articles M put together from the collective discharge chute 7 are discharged downstream.
[0014]
Combination part 4:
The combination unit 4 includes a plurality of pool hoppers 40 _i and weighing hoppers 41 _i .
Multiple pool hoppers 40 _i, the plurality of troughs 30 _i is provided for so as to correspond to the lower, after temporarily storing the articles M supplied from the trough 30 _i, allocated to the weighing hoppers 41 _i of the lower Supply. The weighing hopper 41 _i weighs the article M supplied from the pool hopper 40 _i . Wherein is based upon the metric value combination calculation from the weighing hoppers 41 _i is performed, the article M in each weighing hopper 41 _i selected in the combination calculation is discharged to the collecting and discharge chute 7 below a predetermined timing .
[0015]
Runoff 2:
The apparatus shown in FIG. 2A includes a leveling means 2. The leveling means 2 includes a pair of leveling plates (an example of leveling members) 2a and 2b and moving means (20 and 21) for moving the leveling plates 2a and 2b.
The leveling plates 2a and 2b are engaged with the raised portions of the article M and carry the article M to the troughs 30 ₁ and 30 _n at the left and right ends, for example, a pair of flat plates. Not to plates 2a, 2b is downstream of the charge hopper 10, and is disposed above the trough 30 _i. The leveling plates 2a and 2b are suspended from the slider 20 so as to be freely rotatable.
[0016]
The apparatus main body 1 is provided with a shaft 21 extending in the left-right direction Y, that is, in a direction substantially orthogonal to the conveyance direction X (FIG. 1) of the article M in the trough 30 _i . A slider 20 is attached to the shaft 21, and a driving device for moving the slider 20 is built in the slider 20. The drive device is constituted by an air cylinder (not shown), for example, by which the slider 20 is guided by the shaft 21 and reciprocated in the left-right direction Y above the trough 30 _i . The leveling plates 2 a and 2 b attached to the slider 20 are moved in the left-right direction Y by the movement of the slider 20.
Therefore, the slider 20 and the shaft 21 constitute a moving means for moving the leveling plates 2a and 2b.
[0017]
At both ends of the shaft 21, regulating members 22 that are in contact with the slider 20 and regulate the left and right moving ends of the slider 20 are fixed.
[0018]
As shown in FIG. 2B, the leveling plates 2a and 2b are provided so as to face each other in the left-right direction Y and to be separated from each other in the left-right direction Y. The leveling plates 2a and 2b are supported so as to be rotatable only in one direction around a substantially horizontal axis A (FIG. 1), and the direction of rotation is toward the facing leveling plates 2a and 2b. They are set to rotate with each other. That is, the left leveling plate 2a attached to the left side is restricted so as to be rotatable only counterclockwise from the conveying posture V suspended in the vertical direction. On the other hand, the right leveling plate 2b attached to the right side is restricted so as to be rotatable only clockwise from the conveying posture V.
The leveling plates 2a and 2b are reciprocated in the left-right direction Y by the slider 20, and the movement causes the articles M on the individual troughs 30 _i to be stirred, thereby reducing the difference in the quantity of articles.
[0019]
Incidentally, not to plates 2a, 2b mounted position of can be changed in the height direction Z and the longitudinal direction X shown in FIG. 1, leveled in accordance with the thickness and position of the layer of the article M that occurs on the trough 30 _i It is possible to adjust the positions of the plates 2a and 2b.
[0020]
Operation of the device:
Next, the operation of this apparatus will be described.
The article M stored in the charge hopper 10 shown in FIG. 2A is supplied onto the trough 30 _i downstream from the charge hopper 10. Articles M supplied onto the trough 30 _i is to if moving above the trough 30 _i in the lateral direction Y plate 2a, conveyed to a predetermined thickness by 2b.
[0021]
For example, as shown in FIG. 3A, when the slider 20 moves in the left direction (first direction) Ya, the right leveling plate 2b in the transport posture V is engaged with the raised portion of the article M, Carry the part in the left direction Ya. Therefore, the movement of to the right if the left Ya plate 2b, domesticated scraped articles M on the trough 30 _i is the difference between the upsurge of the article is not being reduced to a predetermined thickness.
On the other hand, when the slider 20 moves in the left direction Ya, when the left leveling plate 2a comes into contact with the article M, it rotates counterclockwise around the axis A and moves over the article M. . Therefore, the left leveling plate 2a does not carry the article M.
[0022]
As shown in FIG. 3B, when the slider 20 reaches the left moving end, the slider 20 comes into contact with the left regulating member 22 and stops. In such a stopped state, a swelled portion M1 is formed on the left side of the right leveling plate 2b by the article M carried by the right leveling plate 2b.
[0023]
Thereafter, as shown in FIG. 3C, when the slider 20 starts to move in the opposite right direction (second direction) Yb, as shown in FIG. 2a engages the raised portion M1 of the article M and carries the portion M1 in the right direction Yb. Therefore, by moving the to if left plate 2a, the prime upstream portion M1 together with is eliminated, the difference of the article M is scraped habituated article of the trough 30 _i is reduced.
On the other hand, when the right leveling plate 2b contacts the article M during the movement in the right direction Yb, the right leveling plate 2b rotates clockwise to move over the article M and does not carry the article M.
[0024]
When the slider 20 reaches the right moving end, the slider 20 in FIG. 2A comes into contact with the right regulating member 22 and stops. The slider 20 is moved again in the left direction Ya, and thus the reciprocating movement in the left-right direction Y is repeated.
Therefore, the supply of the article M from the charge hopper 10 to the trough 30 _i is repeatedly performed, and the reciprocating movement of the slider 20 is continuously performed, and the newly supplied article M on the trough 30 _i is stirred. .
[0025]
As described above, the slider 20 repeatedly moves in the left-right direction Y, so that the leveling plates 2a, 2b engage with the raised portions of the article M and carry them to the troughs 30 ₁ , 30 _n at the left and right ends. The bias for each trough 30 _i is easily eliminated.
[0026]
Further, as described above, since the leveling plates 2a and 2b are formed of flat plates, the leveling plates 2a and 2b are not uneven even in the highly adherent article M, so that cleaning is easy. .
[0027]
Furthermore, the rising of the article M on the trough 30 _i can be sufficiently eliminated by reciprocating the leveling plates 2a and 2b.
Further, by providing a pair of the leveling plates 2a and 2b, the article M gathered at one leveling plate can be eliminated by the other leveling plate, so that the level of the item M is raised at one end. It can be prevented from becoming a state.
[0028]
Wherein if to the plate 2a, scraped domesticated article M by 2b is supplied is dropped into the combination unit 4 by the trough 30 _i of FIG. The articles M are weighed by the combination unit 4 and then combined to be put together and dropped onto a collective discharge chute 7 provided below.
[0029]
The moving means may be any means that can move the leveling plates 2a and 2b in the left-right direction Y (FIG. 2). In addition to using the air cylinder described above, for example, the slider is moved by a motor. You may let them.
[0030]
Further, it is not always necessary to reciprocate the leveling plates 2a and 2b. As shown in FIG. 4, the leveling plates 2a and 2b are fixed to the belt 23, and the belt 23 is continuously rotated in opposite directions. Thus, the swell of the article M may be smoothed. Further, the leveling member need not be plate-shaped.
[0031]
Also, downstream of the weighing hoppers 41 _i, may be provided booster hoppers for storing temporarily the article M.
[0032]
【The invention's effect】
As described above, according to the present invention, since the leveling member engages with the raised portion of the article and carries it to the troughs on the left and right ends, it is easy to eliminate the rising of the article for each trough.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of a combination weighing device showing an embodiment of the present invention.
2A is a cross-sectional view taken along the line II-II in FIG. 1, and FIG. 2B is an enlarged front view in the vicinity of the slider.
FIG. 3 is a front view showing the operation of the leveling member.
FIG. 4 is a perspective view showing a modification of the leveling means.
[Explanation of symbols]
2a, 2b: leveling plate (leveling member)
10: Charge hopper 20: Slider (moving means)
21: Shaft (moving means)
30 _i : Trough 41 _i : Weighing hopper M: Article

Claims (5)

A charge hopper for storing articles, a plurality of troughs arranged in parallel to each other to vibrate the articles received from the charge hopper and transporting them downstream, and each trough arranged individually corresponding to the downstream of each trough A combination weighing device comprising a plurality of pool hoppers that temporarily store articles supplied from the plurality of weighing hoppers that receive supply of articles from each pool hopper ,
Downstream of the charge hopper and the member to if disposed above the trough, in a direction substantially perpendicular to the conveying direction of the articles by previous SL trough, and to cross over the plurality of troughs A leveling means having a moving means for moving the leveling member ;
A combination weighing device that reduces the difference in the amount of articles between a plurality of troughs by moving the leveling members to stir the articles on the individual troughs. In claim 1,
A combination weighing device in which the leveling member is a leveling plate. In claim 1 or 2,
The combination weighing device, wherein the movement of the leveling member by the moving means is a reciprocating movement. In claim 3,
A pair of the leveling members are provided so as to face each other,
Each leveling member is supported so as to be rotatable only in one direction around a substantially horizontal axis,
A combination weighing device in which the rotation direction of the pair of leveling members is set to rotate toward the facing leveling member. In claim 4,
  The combination weighing apparatus characterized in that the leveling member is reciprocated by the moving means to stir the articles on the individual troughs to reduce the difference in the quantity of articles between the troughs.

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