JPH11334861A - Aligning device for waste glass bin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aligning device for waste glass bins which has a high handling ability and has no risk of stopping the line operation with bin clogging. SOLUTION: An aligning device for waste glass bins is equipped with a belt conveyor 11 in inclined arrangement so that the right edge of the belt transport surface 21 is positioned lower than the left edge and a roller conveyor 12 installed along the right edge of the belt transport surface 21 in such an arrangement that the plane including the axes of all rollers 31 and 32 are perpendicular to the belt transport surface 21. Therein the belt transporting direction should be identical to the roller transporting direction, and the peripheral linear speed of the drive rollers 31 of the roller conveyor 12 is made greater than the belt moving speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting apparatus for sorting used waste glass bottles discharged from a general household in a line in the field of packaging container recycling, for example, in size sorting or color sorting.

[0002]

2. Description of the Related Art Vibration conveyors and the like are examples of this type of apparatus.
A feeder type is known. As shown in FIG. 4, a groove 73 whose width gradually decreases from the upstream side to the downstream side in the transport direction is provided on the transport surface 72 of the vibrating conveyor 71.

As another device, there is known an inclined conveyor system with a baffle plate. For the inclined conveyor type, as shown in FIG.
A belt conveyor 42 that is arranged in an inclined manner so that the right edge is lower than the left edge of 41, and is arranged so as to be orthogonal to the belt transport surface 41 along the right edge of the belt transport surface 41. And a bottle sliding guide plate 43 which is sequentially arranged on the belt transport surface 41 from upstream to downstream in the belt moving direction.
The first baffle plate 51 is suspended from a hanging bar 61 traversing on the belt conveying surface 41 so as to be vertically swingable. The second baffle plate 52 is formed by a vertical flat plate 64 that is horizontally swingably attached to a support bar 63 orthogonal to the belt conveying surface 41 at the left edge of the belt conveying surface 41. The third baffle plate 53 is constituted by a horizontal flat plate 65 protruding from the left edge of the belt transport surface 41 toward the right edge thereof at a slight distance from the belt transport surface 41.

[0004]

The processing speed of the vibrating conveyor / feeder system is lower than the processing speed in the subsequent color selection process. To eliminate this imbalance and increase the amount of processing per unit time, a plurality of devices are required, which is disadvantageous in terms of cost and equipment area.

[0005] Although the inclined conveyor system with the baffle plate has no problem in terms of processing capacity, the possibility that the baffle plate is clogged with a bottle and causes line blockage cannot be completely denied.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for aligning waste glass bottles, which has a high processing capacity and is free from the possibility of clogging the line due to bottle clogging.

[0007]

According to the present invention, there is provided an apparatus for aligning waste glass bottles, comprising: a belt conveyor having an inclined shape such that a right edge of the belt conveying surface is lower than a left edge of the belt conveying surface; A roller conveyor arranged so that the surface including the roller axes of all the rollers along the right edge of the roller is orthogonal to the belt conveying surface, the belt conveying direction and the roller conveying direction are the same, The roller conveyor has a driving roller, and the peripheral speed of the driving roller is higher than the moving speed of the belt.

In the apparatus for aligning waste glass bottles according to the present invention, the bottle is moved by being placed on the belt transport surface, and there is nothing on the belt transport surface that would interfere with bottle transport. It can be transported at a relatively high speed.

When the bottom of the bottle comes into contact with the drive roller at right angles to the transport direction, the bottom of the bottle is pulled downstream by the drive roller in the transport direction. Can be changed parallel to the direction,
If the bottles overlap in the width direction in the transport direction, the lower bottle in contact with the drive roller moves faster, and the upper bottles are displaced and aligned.

Therefore, there is provided an apparatus for aligning waste glass bottles which has a high processing capacity and is free from the possibility of clogging a line due to bottle clogging.

The inclination angle of the belt conveying surface is 25 to
Preferably it is 35 °.

When the inclination angle is less than 25 °, the contact pressure between the bottle and the roller is insufficient, so that the frictional force of the driving roller is not sufficiently transmitted to the bottle, the alignment effect becomes insufficient, and the inclination angle becomes less than 35 °. If it exceeds, the bottles may overlap on the roller conveyor.

Further, the number of drive rollers is two or more,
Preferably, there is a space between adjacent drive rollers that is about the average length of the bottles to be aligned.

Thus, the length of the roller conveyor can be minimized.

Further, when the friction coefficient of the outer peripheral surface of the driving roller is larger than the friction coefficient of the belt conveying surface, the frictional force of the roller effectively acts on the bottle, and the alignment effect is further enhanced.

Further, the belt moving speed is Y, the peripheral speed of the driving roller is X, the number of driving rollers is B, the average length of the bottle to be aligned is l, and the average effective length of the bottle to be aligned with the driving roller is l. ′, (1-Y / X) · l ′ ·
It is preferred that B ≧ 1. By employing such a configuration, the number of drive rollers can be minimized, which is advantageous in cost.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In the following description, the front and the rear refer to the side where the bottle is carried by the conveyor and advance, and the opposite side to the rear, and the left and right refer to the left and right sides as viewed from the front. I do.

Referring to FIG. 1, the apparatus for aligning waste glass bottles comprises a belt conveyor 11 and a roller conveyor 12.

The belt conveyor 11 is a flat belt conveyor in which an upper surface of a belt moving on an upper path of an endless belt path is used as a belt conveying surface 21. Belt transfer surface 21
Is inclined such that the right edge is lower than the left edge. The inclination angle θ is 25 to 35 °, and is 3 on average.
0 °.

The roller conveyor 12 includes a plurality of drive rollers 31 arranged in a line along the right edge of the belt conveying surface 21.
And a free roller 32. The roller axes of the driving roller 31 and the free roller 32 are included in one surface orthogonal to the belt conveying surface 21. One drive roller 31 is arranged for each of the seven free rollers 32 arranged continuously. A friction material 33 such as rubber is provided on the outer peripheral surface of the drive roller 31.
Is coated. Thus, the friction coefficient of the outer peripheral surface of the driving roller 31 is larger than the friction coefficient of the belt conveying surface 21.

In FIG. 1, the belt is moved along the upper path from the back of the paper to the front, and is viewed directly from the belt transport surface.
The drive roller 31 is driven to rotate counterclockwise.

The bottles to be aligned have a diameter of 40 to 120 mm and are distinguished from small bottles and medium and large bottles. These are pre-sized and then aligned for each of the selected sizes.

In sorting bottles, the following is considered. Small bottles and medium / large bottles are separately processed on two lines, and the processing amounts per unit time of the two lines are made equal. For this purpose, a group of bottles having an average composition, for example, 10,000 bottles are arranged in a row from the largest one to the smallest one, and the lengths are integrated. Is divided into two groups. In the two groups thus obtained, the average length l of the vial
Is about 140 mm, and the average length l of the middle and large bottles is 200 mm.

Here, in order to set the interval between the adjacent drive rollers 31, a calculation formula will be created.

As shown in FIG. 1, there are two cases in which bottles are aligned: a bottle lying in the width direction of the belt conveying surface 21 and its direction is changed in the length direction of the belt conveying surface 21; As shown in (2), there is a case where two bottles overlapping in the width direction of the belt conveying surface 21 are arranged in a line, but this case is effective in the latter case.

Referring to FIG. 3, the length of the bottle W is indicated by l, and the effective length of the bottle with respect to the drive roller is indicated by l '. The effective length l 'of the bottle W refers to the length of the bottle body with a constant outer diameter. l 'is approximately equal to 0.6 l.

Here, the belt moving speed is Y, the peripheral speed of the drive roller is X, the number of drive rollers is B, the average length of the bottle to be aligned is l, and the average effective length of the bottle to be aligned with the drive roller is l ′.

First, the distance traveled by one drive roller more than the bottle conveyed by the belt conveyor is determined with reference to l '.

Assuming that the time that the bottle is carried by one driving roller is t, t = l '/ X.

During the same time t, if the distance over which the bottles are conveyed by the belt conveyor (the distance the overlapping bottles move) is L, then L = Y · t = Y · l ′ / X.

The difference between l 'and L is the distance that the lower bottle travels more than the upper bottle, where e is: e = l'-L = l'-Y.l' / X = ( 1−Y / X) · l ′.

In order to eliminate the overlap between the two bottles,
Since the value obtained by multiplying the distance e by the number B of bottles needs to be equal to or greater than the length l of the bottle, the following equation is obtained: (1−Y / X) · l ′ · B ≧ l.

Further, considering that l 'is substantially equal to 0.6 l, the following expression is obtained: (1−Y / X) · B ≧ 1.7.

Now, when the belt moving speed Y is set to 50 m / s and the driving roller peripheral speed X is set to 80 m / s, the driving roller is driven based on the equation (1-Y / X) .B≥1.7. When the number of is obtained, from the formula of (1-50 / 80) · B ≧ 1.7, B ≧ 4.5
It becomes 3.

Therefore, the minimum required number of drive rollers is five.

From the above, when arranging small vials,
The number of drive rollers is set to 5 regardless of whether the medium and large bottles are aligned.
Is preferably set to 140 mm, and when aligning the middle and large bottles, the distance between the drive rollers 31 is preferably set to 200 mm.

[0038]

According to the present invention, there is provided an apparatus for aligning waste glass bottles, which has a high processing capacity and is free from the possibility of clogging the lines due to bottle clogging.

[Brief description of the drawings]

FIG. 1 is a perspective view of an apparatus for aligning waste glass bottles according to the present invention.

FIG. 2 is an explanatory view of an alignment operation by the apparatus.

FIG. 3 is an explanatory view of a bottle arranged by the apparatus.

FIG. 4 is a perspective view of a waste glass bottle aligning apparatus showing a conventional example.

FIG. 5 is a perspective view of a waste glass bottle aligning apparatus showing another conventional example.

[Explanation of symbols]

 11 Belt conveyor 12 Roller conveyor 21 Belt transport surface 31 Drive roller 32 Free roller θ Tilt angle W Bottle

Claims (5)

[Claims] 1. A belt conveyor 11 which is arranged in an inclined manner so that a right edge thereof is lower than a left edge of a belt conveying surface 21.
And all the rollers 31 along the right edge of the belt conveying surface 21
A roller conveyor 12 disposed so that a surface including a roller shaft of the roller 32 is orthogonal to the belt conveying surface 21.The belt conveying direction is the same as the roller conveying direction, and the roller conveyor is driven by a driving roller 31. A waste glass bottle aligning device having a driving roller peripheral speed higher than a belt moving speed. 2. The inclination angle θ of the belt conveying surface 21 is 25 to
The apparatus for aligning waste glass bottles according to claim 1, wherein the angle is 35 °. 3. The number of drive rollers 41 is two or more, and the average length l of bottles B to be aligned between adjacent drive rollers 31
3. An apparatus for aligning waste glass bottles according to claim 1, wherein the waste glass bottles are arranged at a certain interval. 4. The apparatus for aligning waste glass bottles according to claim 1, wherein the friction coefficient of the outer peripheral surface of the drive roller is larger than the friction coefficient of the belt conveying surface 21. 5. The belt moving speed is Y, the peripheral speed of the drive roller is X, the number of drive rollers is B, the average length of the bottle to be aligned is l, and the average effective length of the bottle to be aligned with the drive roller is l. ′, (1−Y / X) · l ′ · B ≧ l
The waste glass bottle aligning apparatus according to any one of claims 1 to 4, wherein: