JP3627282B2 - Sorting device for cylindrical and non-cylindrical objects - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a sorting device for cylindrical and non-cylindrical objects, and more particularly, sorts useful cylindrical glass bottles, metal cans and non-cylindrical miscellaneous impurities in resource waste. The present invention relates to a sorting apparatus for sorting a cylindrical glass bottle and a non-cylindrical glass piece (so-called cullet).
[0002]
[Prior art and its problems]
Cylindrical glass bottles and metal cans, which are discharged from general households and public facilities as resource waste and collected in a sorting plant, must first be efficiently separated from foreign substances. Next, the glass cans are separated into glass cans and metal cans. The metal cans are further sorted into aluminum cans and steel cans. The glass bottles are sorted into five colors including colorless, and are shipped as recycled materials.
[0003]
In addition, glass bottles vary in color and size, and some are collected in a broken state, and some glass bottles are damaged in each process up to the color selection process even in the selection processing factory. It is difficult to color sort glass fragments mixed with each color, and the glass fragments must be removed from the glass bottle before color-sorting the glass bottle. Since glass fragments are also large and small, it is difficult to sort them by a general sieving machine, and an efficient sorting device for cylindrical glass bottles is also desired here.
[0004]
Conventionally, many techniques have been disclosed for sorting and separating cylindrical glass bottles, metal cans, and other non-cylindrical contaminants, and typical conventional examples will be described below.
[0005]
(First Conventional Example) In a “sorting device” according to Japanese Patent Laid-Open No. 5-269440, as shown in a plan view in FIG. 10, an endless belt is provided between a front roller 105 and a rear roller 106 as drive rollers. In the belt conveyor 107 wound around and having the direction of the white arrow as the conveying direction, push-up rollers 109 and 109 are provided in contact with the lower surface of the belt 107, and the belt 107 is directed downward on the conveying surface. Selection is made by forming an inclined rear inclined surface 110, a left inclined surface 111 inclined downward to the left in the transport direction, a right inclined surface 112 inclined downward to the right, and a forward transfer surface 113 inclined downward to the downstream side. The apparatus 100 is used.
[0006]
And the garbage D (the can or bottle having a cylindrical shape or a similar shape) and the corner W (for example, a piece of wood other than the round D, debris, etc.) are mixed. Among them, some of the round objects D roll backward on the rear inclined surface 110 and move backward. The remaining round object D whose rearward rolling is restricted by the corner object W on the rearward inclined surface 110 is conveyed forward, and when it moves to the leftwardly inclined surface 111 or the rightwardly inclined surface 112, the inclination is rolled. Separated on both sides. Then, the corner object W on which the frictional force acts between the belt 107 and the belt 107 is collected forward via the front transfer surface 113. In this way, the round object D and the square object W are selected.
[0007]
However, in this sorting apparatus 100, since the corners W are also present on the left side inclined surface 111 and the right side inclined surface 112 and the rolling of the round object D is restricted, the left side inclined surface 111, the right side inclined surface It cannot be expected that all of the round objects D will roll off on the surface 112. Since many round objects D are transported to the front transfer surface 113 along with the corner objects W, the round objects D are mixed in the corner objects W collected in the front. Further, since the round object D is only conveyed on the belt 107, its axis remains in the random direction at the time of loading, and the axes of all the round objects D are on the left inclined surface 111 or the right side. It does not mean that the direction inclined surface 112 tends to roll. Therefore, the sorting efficiency of the round object D and the square object W is not as high as expected. Further, it is difficult to wind the belt 107 as illustrated.
[0008]
(Second Conventional Example) In the “sorting device” according to Japanese Patent Laid-Open No. 5-269441, as shown in a perspective view in FIG. 11, an endless belt is provided between a front roller 204 and a rear roller 206 as drive rollers. In the belt conveyor in which 207 is wound and the conveying direction is the direction of the white arrow, the axis Y of the rear roller 206 is substantially horizontal, and the axis X of the front roller 204 includes the original horizontal axis. In the vertical plane H, it is inclined with respect to the horizontal direction by an angle α, and as a result, it is inclined with respect to the axis Y of the rear roller 206 by an angle α. Then, a first inclined surface 208 having an upward inclination θ toward the conveying direction and a second inclined surface 209 having an upward inclination toward the conveying direction and a downwardly inclined left side are formed on the conveying surface of the belt 207. The sorting apparatus 200 is used. The inclination angles θ and α are set to an angle (for example, about 15 degrees) sufficient for the round object D (a cylinder or a similar shape among cans and bottles) to roll.
[0009]
When garbage containing a mixture of round objects D and corner objects W (for example, wooden pieces or rubble other than the round objects D) is thrown into the first inclined surface 208 of the belt 207, some of the round objects D are first. Rolls backward along the inclined surface 208 (upstream in the transport direction) and is sorted. On the first inclined surface 208, when the remaining round object D whose rearward rolling is restricted by the corner object W is conveyed to the second inclined surface 209, it rolls to the left along the inclination of the second inclined surface 209. Are selected. Then, the corner object W is recovered by being transferred forward (downstream in the transport direction) without rolling by the frictional force with the belt 207. In this way, the round object D and the square object W are selected.
[0010]
However, in this sorting apparatus 200, the round object D that did not roll backward on the first inclined surface 208 is conveyed to the second inclined surface 209, but rolling is restricted because the corner object W is also present there, It cannot be expected that all of the round objects D roll and be selected on the second inclined surface 209. Further, the axis of the round object D faces a random direction at the time of charging, and not all the round objects D make the axis easy to roll on the second inclined surface 209. Accordingly, the round objects D are mixed in the collected corner objects W, and the sorting efficiency between the round objects D and the corner objects W is not as high as expected. Further, it is difficult to wind the belt 207 in a shape as illustrated.
[0011]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and an object thereof is to provide a sorting apparatus for efficiently sorting cylindrical and non-cylindrical objects with a structure that can be easily obtained.
[0012]
[Means for solving problems]
The above purpose is to apply a linear vibration in the oblique direction to the bottom of the vibration trough, and the non-cylindrical object does not slide in the vibration trough in the direction intersecting the transfer direction by the vibration, but the cylindrical object rolls down. In a sorting apparatus for a cylindrical object and a non-cylindrical object provided with a downward inclined flat plate-shaped inclined transfer surface, the cylindrical object and the non-cylindrical object are not moved to the upstream end portion of the flat plate-shaped inclined transfer surface. The apparatus for supplying the sorted product is composed of a plurality of feeders connected in series. Between the upstream feeder and the downstream feeder, a non-cylindrical material smaller than the cylindrical material is provided. A separation device for a cylindrical object and a non-cylindrical object, characterized in that a gap for dropping is provided, and a transfer speed of the feeder on the downstream side is set to be larger than a transfer speed of the feeder on the upstream side, Achieved by:
[0013]
[Action]
The unsorted cylindrical and non-cylindrical objects are contained in the non-cylindrical object in the gap provided between the upstream feeder and the downstream feeder of a plurality of feeders connected in series as a feeder. In the downstream feeder, which is smaller than the cylindrical object and dropped in advance and has a higher transfer speed than the upstream feeder, the gap between the unsorted items is in the upstream feeder. Is also enlarged and overlapped, and supplied to the flat inclined moving surface of the vibration trough. Therefore, the cylindrical object easily rolls down along the inclination and is discharged to the side, and the non-cylindrical object is transferred to the downstream end through the flat inclined transfer surface and discharged. In this way, the selection between the cylindrical object and the non-cylindrical object is performed efficiently and reliably. Such a sorting device can be easily manufactured.
[0014]
【Example】
Hereinafter, a sorting apparatus for cylindrical and non-cylindrical objects according to the present invention will be described with reference to the drawings.
[0015]
(First Embodiment) FIG. 1 sorts cylindrical glass bottles B, metal cans C and non-cylindrical wooden pieces, magazines, rubble and other miscellaneous impurities (including cullet) G contained in resource waste. FIG. 2 is a cross-sectional view taken along line [2]-[2] in FIG. 1, and FIG. 3 is a cross-sectional view taken along line [3]-[3] in FIG.
[0016]
1, 2, and 3, the sorting apparatus 1 includes a vibrating conveyor 30 that transfers and sorts unsorted resource waste, and a first vibratory feeder that is arranged in series for supplying the resource waste to the vibratory conveyor 30. 10, a second vibrating feeder 20, a sorted glass bottle B, a belt conveyor 50 that conveys a metal can C, and a belt conveyor 60 that conveys a sorted contaminant G.
[0017]
The vibration conveyor 30 is composed of a vibration trough 31 for transferring and sorting resource waste, and a drive unit 41 for applying linear vibration to the vibration trough 31, particularly referring to FIG.
[0018]
In the drive unit 41, the bottom plate frame 39 of the vibration trough 31, that is, the bottom portion is coupled to a rigid frame 42 that also serves as a counterweight below by levers 43 and 43, and further a coil disposed in a direction perpendicular to the levers 43 and 43. Coupled by springs 44, 44. The frame 42 is installed on the floor surface via vibration-proof coil springs 45, 45. A motor 46 is fixed on the frame 42 to drive the eccentric shaft 47 with a belt, and a rod 48 is attached to the eccentric shaft 47. The rod 48 is connected to the side surface of the bottom plate frame 39 of the vibration trough 31 through a connecting portion that sandwiches the tip end portion thereof with a rubber plate spring. The rubber plate spring serves to reduce the starting torque and protect the drive unit 41 from an impact load. When the motor 46 is started and the eccentric shaft 47 rotates, this is converted into a reciprocating motion of the rod 48 and linear vibration in the direction indicated by the arrow a is applied to the bottom of the vibration trough 31. The resource waste receives a transfer force in the direction indicated by the arrow b in FIGS.
[0019]
1 to 3 and FIG. 4 which is a partially broken perspective view of the vibration trough 31, the non-cylindrical miscellaneous miscellaneous in the direction orthogonal to the transfer direction b by linear vibration. The object G does not slide down, but the cylindrical glass bottle B and the metal can C whose axis is directed in the transfer direction b are provided with a flat inclined transfer surface 33 that is inclined downward. And the discharge port 38 of the glass bottle B and the metal can C is formed in the side wall 37 on the inclined downstream side from the upstream end to the downstream end. On the other hand, the downstream end of the flat inclined transfer surface 33 is provided with an inclined chute 35 and its discharge port 36 for collecting and discharging the foreign matter G falling from the downstream end.
[0020]
Referring to FIGS. 1 and 2, on the upstream side of the vibrating conveyor 30, directly below the outlet of the hopper 6 for storing unsorted resource waste containing glass bottles B, metal cans C, and miscellaneous contaminants G. A first vibration feeder 10 is disposed, and a second vibration feeder 20 is disposed in series with the first vibration feeder 10 with a slightly lower level of the transfer surface. Both the first vibration feeder 10 and the second vibration feeder 20 are suspended from an upper frame (not shown). Each of the first vibration feeder 10 and the second vibration feeder 20 has U-shaped vibration troughs 11 and 12 having a cross section opened upward, and the downstream end of the vibration trough 11 and the upstream end of the vibration trough 21 In the gap G, a gap K for dropping the dust G ', which is smaller than the glass bottle B and the metal can C, such as gravel and the lid of the bottle, is opened. Is projected right above the inclined upper edge at the upstream end of the vibration trough 31.
[0021]
Further, the vibration troughs 11 and 21 are linearly driven with a predetermined amplitude in a direction indicated by an arrow m by known electromagnetic driving units 12 and 22, respectively, and resource waste in the vibration troughs 11 and 21 is transferred in a direction indicated by an arrow n. It is like that. The transfer speed of the vibration trough 21 of the second vibration feeder 20 is set to be higher than the transfer speed of the vibration trough 11 of the first vibration feeder 10. In addition, the vibration trough 21 needs to receive the resource waste from the upstream vibration trough 11, and the thing corresponding to the upstream end face plate 11E of the vibration trough 11 is removed.
[0022]
A discharge chute 7 that collects small impurities G 'that fall down just below the gap K between the vibration trough 11 and the vibration trough 21, and a belt conveyor 8 that conveys and discharges these in the direction of the arrow k. Is provided. In FIG. 2, the gantry for supporting the chute 7, the belt conveyor 8 and the like is omitted for the sake of simplicity.
[0023]
1 and 3, these are indicated by an arrow d in FIG. 1 immediately below the discharge port 38 of the glass bottle B and the metal can C on the side wall 37 of the inclined lower edge of the vibration trough 31. A belt conveyor 50 for conveying in the direction is installed on a frame 52 together with a frame 51. A blocking wall 51W for blocking overrun of the discharged glass bottle B and metal can C is fixed to the frame 51 at a position facing the discharge port 38 with the belt conveyor 50 interposed therebetween. Further, referring to FIGS. 1 and 2, a belt conveyor 60 for conveying the contaminant G in the direction of arrow e is disposed immediately below the discharge port 36 for the contaminant G from the vibrating conveyor 30. .
[0024]
The sorting apparatus 1 according to the first embodiment is configured as described above. Next, the operation thereof will be described. The first vibration feeder 10, the second vibration feeder 20, the vibration conveyor 30, and the belt conveyor 50 that conveys the glass bottle B and the metal can C, and the belt conveyor 60 that conveys the contaminant G are all energized and activated. To do.
[0025]
Referring to FIGS. 1 and 2, unsorted resource garbage consisting of glass bottles B, metal cans C, and miscellaneous contaminants G is input from the hopper 6 to the upstream end of the vibration trough 11 of the first vibration feeder 10. . Resource garbage receives linear vibrations and is transferred to the downstream side. During this time, glass bottles B, metal cans C and foreign substances G in the longitudinal direction have their axes oriented in the transfer direction. In the gap K provided between the downstream end of the vibration trough 11 and the upstream end of the vibration trough 21 of the second vibration feeder 20, the contaminant G having a shape smaller than that of the glass bottle B and the metal can C is contained in the contaminant G. 'Is dropped and removed, and is discharged by the belt conveyor 8 via the discharge chute 7. Therefore, since the small impurities G ′ do not exist in the downstream sorting, the sorting proceeds efficiently.
[0026]
Large resource waste exceeding the gap K is received at the upstream end of the vibration trough 21 and transferred in the vibration trough 21, but the transfer speed of the second vibration feeder 20 is larger than the transfer speed of the first vibration feeder 10. Since the distance between the glass bottle B, the metal can C, and the foreign matter G when it is in the vibration trough 11 is enlarged in the vibration trough 21, the overlap is eliminated, and the glass bottle B, metal can C , The longer one in the contaminant G is further subjected to orientation. In this state, the vibration trough 21 is supplied from the downstream end of the vibration trough 21 to the inclined upper edge of the flat inclined transfer surface 33 at the upstream end of the vibration trough 31 of the vibration conveyor 30.
[0027]
The glass bottles B and metal cans C supplied to the vibration trough 31 of the vibration conveyor 30 already have their axes oriented in the transfer direction, so that the plate-shaped inclined transfer surface 33 of the vibration trough 31 is likely to roll off. In addition, the mutual gap including the foreign matter G is widened, the overlap is eliminated, and the small foreign matter G ′ has already been removed, and the glass bottle B, the metal can C The plate-shaped inclined transfer surface 33 easily rolls down toward the discharge port 38 through a path as indicated by a white arrow without receiving any obstruction. The path of rolling down differs depending on the weight and diameter of the glass bottle B and the metal can C. Further, the glass bottle B and the metal can C whose axial center is not directed in the transfer direction when supplied to the vibration trough 31 are also oriented so that the shaft center is directed in the transfer direction b by receiving the linear vibration at the vibration trough 31. Rolls down to the discharge port 38. And the glass bottle B and the metal can C fall on the belt conveyor 50 from the discharge port 38, are conveyed in the direction of arrow d, and are discharged | emitted. At this time, the glass bottle B and the metal can C do not overrun the belt conveyor 50 by the blocking wall 51W provided so as to face the discharge port 38 with the belt conveyor 50 interposed therebetween.
[0028]
On the other hand, the miscellaneous impurities G supplied to the inclined upper edge at the upstream end of the flat inclined transfer surface 33 of the vibration trough 31 are transferred from the flat inclined transfer surface 33 to the downstream end without sliding down. Some of the foreign substances G are scattered along the glass bottle B and the metal can C, and are dispersed toward the discharge port 38. However, they do not slide down or roll, so that they are dispersed. Also, it remains in the range of the flat inclined transfer surface 33 and is transferred to the downstream end. In this way, the foreign matter G falls from the downstream end to the inclined chute 35, and is collected and discharged onto the belt conveyor 60 disposed immediately below through the discharge port 36. In this way, the cylindrical glass bottle B, the metal can C and the non-cylindrical miscellaneous impurities G in the resource waste are efficiently and reliably sorted.
[0029]
(Second Embodiment) FIG. 5 is a partially broken perspective view of a vibration trough 31 'of a sorting device 2 (not shown) of the second embodiment, corresponding to FIG. 4 for the sorting device 1 of the first embodiment. To do. That is, the flat inclined transfer surface 33 in the vibration trough 31 of the first embodiment is formed into four steps of inclined transfer surfaces 33 ₁ , 33 ₂ , 33 ₃ , and 33 _4, and steps 32 ₁ , 32 ₂ , 32 ₃ is provided. Except for this, since it is configured in exactly the same way as the sorting apparatus 1 of the first embodiment, description of other parts including the belt conveyor 50 and the blocking wall 51W assigned the same reference numerals will be omitted.
[0030]
To explain the effect of the vibration trough 31 'of the second embodiment, glass bottles B of recyclable waste which is supplied from the downstream end of the vibrating trough 21 of the second vibrating feeder 20, the metal cans C first inclined transport surface 33 ₁ rolling along the inclined to fall a step 32 ₁ roll down following the inclined transporting surface 33 _2. In this way, the steps 32 ₂ and 32 ₃ are sequentially dropped and discharged through the inclined transfer surfaces 33 ₃ and 33 ₄ . During this time, each time the glass bottle B and the metal can C fall on the steps 33 ₁ , 33 ₂ , and 33 ₃ , the potential energy is converted into kinetic energy, and the kinetic energy of rolling is increased, so that the inclined transfer surface 33 ₂ , 33 _3, 33 is discharged rolls down the buoyant jumping contaminants G on _4, sorting speed is increased.
[0031]
On the other hand, the foreign substance G is mainly transferred on the inclined transfer surfaces 33 ₁ and 33 ₂ , dropped from the downstream end thereof, and discharged. In this way, the sorting efficiency and sorting speed of the glass bottle B, the metal can C and the miscellaneous impurities G in the resource waste can be increased.
[0032]
(Third Embodiment) FIG. 6 is a plan view of a sorting device 3 for sorting glass bottles B and glass fragments (cullet) P, and FIG. 7 is a cross-sectional view taken along line [7]-[7] in FIG. In addition, the illustration of the drive unit similar to that in the first embodiment is omitted.
[0033]
As shown in FIGS. 6 and 7, the sorting device 3 is configured symmetrically, and the glass bottle B and the glass piece P in the trough 71 of the vibration conveyor 70 receive a transfer force in the direction indicated by the arrow p by linear vibration. . The vibration trough 71 is provided with flat plate-like inclined transfer surfaces 73 and 73 'inclined downward from both side walls 77 and 77' toward the center, and the inclination does not cause the glass fragments P to slide down, but the axis in the transfer direction. The facing glass bottle B is set at an angle of rolling down. Further, the lowest part between the flat inclined transfer surfaces 73 and 73 ′ is formed as a horizontal central transfer path 74 having a width in which the glass bottles B whose axis is directed in the transfer direction p are transferred in a single row. An opening 79 corresponding to the central transfer path 74 is provided in the end face plate 78 on the downstream side of the vibration trough 71. In addition, inclined chutes 75 and 75 ′ for collecting the glass pieces P falling from the downstream end are provided on the downstream side of the flat inclined transfer surfaces 73 and 73 ′, and the discharge ports 76 and 76 ′ are respectively attached. ing.
[0034]
On the upstream side of the side wall 77 of the vibration trough 71, a first vibration feeder 10 a and a second vibration feeder 20 a as devices for supplying a mixture of the glass bottle B and the glass piece P are included in the glass piece P from the glass bottle B. Are also arranged in series with a gap Kp for dropping small glass fragments P ′. That is, a gap Kp is provided between the downstream end of the vibration trough 11a of the first vibration feeder 10a and the upstream end of the vibration trough 21a of the second vibration feeder 20a, and the downstream end of the vibration trough 21a is the upstream end of the vibration trough 71. Is projected directly above the side wall 77 side. The transfer speed of the second vibration feeder 20a is set to be higher than the transfer speed of the first vibration feeder 10a. On the side of the side wall 77 ′ of the vibration trough 71, the vibration feeders 10b and 20b are disposed completely symmetrically with a gap Kp ′.
[0035]
Further, a belt conveyor 88 that conveys the glass bottle B in the direction indicated by the arrow r is disposed immediately below the opening 49 through which the glass bottle B is discharged from the vibration trough 71. In addition, a light source lamp 91 and a CCD camera 92 are installed facing each other so as to sandwich the glass bottle B conveyed on the belt conveyor 88, and the color of the glass bottle B is determined.
[0036]
On the other hand, belt conveyors 89 and 89 ′ for conveying the glass fragments P in the directions of arrows q and q ′, respectively, are disposed directly below the discharge ports 76 and 76 ′ from which the glass fragments P are discharged from the vibration trough 71. Yes.
[0037]
The sorting device 3 of the third embodiment is configured as described above, and the operation thereof will be described next. Since the sorting device 3 is bilaterally symmetric as described above, the first vibration feeder 10a and the second vibration feeder 20a on the left side facing downstream will be described, and the description on the right side will be omitted.
[0038]
Referring to FIGS. 6 and 7, the mixture of glass bottle B and glass piece P is introduced into the upstream end of vibration trough 11a of first vibration feeder 10a. The mixture is subjected to linear vibration and is transferred to the downstream side. During this time, the glass bottle B is oriented with its axis in the transfer direction. In the gap Kp between the downstream end of the vibration trough 11a and the upstream end of the vibration trough 21a, the glass fragment P ′ smaller than the glass bottle B in the glass fragment P is dropped and eliminated, and passes through a chute (not shown). Discharged. The glass bottle B and the glass piece P exceeding the gap Kp are received at the upstream end of the vibration trough 21a and transferred in the vibration trough 21a. The transfer speed of the second vibration feeder 20a is higher than the transfer speed of the first vibration feeder 10a. Since it is set to be large, the mutual interval of the mixture of the glass bottle B and the glass fragment P when it is in the vibration trough 11a is enlarged in the vibration trough 21a, the mutual overlap is also eliminated, and the glass bottle B is The mind is oriented in the transport direction. In this state, the vibration trough 21a is supplied from the downstream end to the upstream end portion on the side of the side wall 77 of the vibration trough 71 of the vibration conveyor 70.
[0039]
The glass bottle B supplied to the vibration trough 71 already has its axis oriented in the transfer direction, and is in a direction that tends to roll off the flat inclined transfer surface 73 of the vibration trough 71. In addition, the glass bottle B and glass fragments P The glass bottle B has a flat inclined transfer surface 73 indicated by a white arrow. It rolls down without any obstructions toward the central transfer path 74 in the path shown. This rolling path varies depending on the weight and diameter of the glass bottle B. Even if there is a glass bottle B whose axis is not directed in the transfer direction when it is supplied to the vibration trough 71, it is subjected to linear vibration in the vibration trough 71 and the axis is oriented in the transfer direction, and similarly rolls down. It becomes like this.
[0040]
The glass bottle B rolled down to the central transfer path 74 is transferred to the downstream side, passes through the opening 79 of the downstream end face plate 78, rides on the belt conveyor 88, and is conveyed in the direction of arrow r. During the conveyance, the color of the glass bottle B is determined by the light source lamp 91 and the CCD camera 92 arranged so as to sandwich the belt conveyor 88, but the glass bottles B are aligned in the axial direction in a single row. Therefore, highly accurate color discrimination is performed.
[0041]
On the other hand, some of the glass fragments P are dispersed on the flat inclined transfer surface 73 toward the central transfer path 74 as the glass bottle B falls, but the glass fragments P themselves fall or slide down. Therefore, the glass fragments P are transferred to the downstream side of the flat inclined transfer surface 73 as a whole. And it falls to the inclination chute 75 from the downstream end, gets on the belt conveyor 89 just under the discharge port 76, is conveyed in the direction of arrow q, and is discharged. The above is exactly the same for the right side facing the downstream having a symmetrical positional relationship, that is, on the vibration feeders 10b and 20b side.
[0042]
Thus, since the glass bottle B and the glass piece P are sorted efficiently and with high accuracy, the glass bottle B obtained does not have the glass piece P, and a recycled glass raw material with high color purity can be obtained.
[0043]
As mentioned above, although each Example of this invention was described, of course, this invention is not restricted to these, A various deformation | transformation is possible based on the technical idea of this invention.
[0044]
For example, in each embodiment, two vibration feeders of the first vibration feeder 10 and the second vibration feeder 20 are connected in series as a device for supplying unsorted items, but three or more vibration feeders are provided. It may be installed in series with a predetermined interval so that the transfer speed of the downstream vibration feeder is increased.
[0045]
In the first embodiment, the transfer surface of the second vibration feeder 20 is slightly lower than the transfer surface of the first vibration feeder 10, but may be provided on the same horizontal plane.
[0046]
In each embodiment, the two vibration feeders of the first vibration feeder 10 and the second vibration feeder 20 are used for supplying unsorted materials. However, either one or both of them is a vibration sieve, that is, It is good also as a vibration sieve of the type which carries out a linear vibration and transfers cylindrical things, such as a glass bottle B and the metal can C, to a downstream side on a sieve. By doing so, when pebbles, earth and sand, etc. are contained in the resource waste, these are excluded as sieving, so that the sorting proceeds more efficiently. It is also possible to use either one or both of the vibration feeders as a belt conveyor. In this case, as shown in FIG. 8 as an example, fixed inclined chutes 203 and 203 ′ connecting the ascending belt surface of the belt conveyor 201 as the first feeder and the ascending belt surface of the belt conveyor 202 as the second feeder are spaced apart. Required with K. A similar auxiliary member is required when one is a belt conveyor and the other is a vibrating conveyor. However, in any case, the transfer speed of the feeder 202 on the downstream side is higher.
[0047]
Further, in the vibration conveyor 30 of the first embodiment, the flat inclined transfer surface 33 is inclined downward from the left to the right in the transfer direction, and in the vibration conveyor 70 of the third embodiment, the left and right side walls 77 are left and right. , 77 ′ from the central transfer path 74 to the downwardly inclined flat plate-like inclined transfer surfaces 73 and 73 ′, the first modification shown in FIG. 9 is a cross-sectional view similar to FIG. 7 of the third embodiment. Like the vibration trough 101, flat inclined transfer surfaces 103 and 103 'inclined downward from the center toward the left and right side walls 107 and 107' are provided, and the outlets 108 and 108 are provided in the side walls 107 and 107 '. The unsorted material is supplied from the vibration trough 21c of the second vibration feeder 20c in the first vibration feeder 10c and the second vibration feeder 20c arranged in series to the central portion of the upstream end portion of the vibration trough 101. Shi Further, cylindrical objects such as glass bottles B and metal cans C that fall on the flat inclined transfer surfaces 103 and 103 ′ may be collected on belt conveyors 87 and 87 ′ installed immediately below the discharge ports 108 and 108 ′. . At that time, the contaminant G is discharged on the near side of the cross section of FIG. 9 as in FIG.
[0048]
Further, for example, in the first embodiment, side walls are provided in the vibration trough 11 of the first vibration feeder 10, the vibration trough 21 of the second vibration feeder, and the vibration trough 71 of the vibration conveyor 70, but these side walls are not necessarily required. In particular, the side wall 37 of the first embodiment shown in FIG. 3 and the side walls 107 and 107 ′ of the first modification shown in FIG. 8 can be omitted.
[0049]
Further, in each of the examples and the first example, the glass bottle B, the metal can C and the foreign matter G in the resource waste are selected, and the glass bottle B and the glass piece P are selected. And non-cylindrical sorting devices can be applied to sorting other than resource waste. For example, sorting between cylindrical dried confectionery and non-cylindrical confectionery pieces.
[0050]
【The invention's effect】
As described above, according to the cylindrical and non-cylindrical material sorting apparatus of the present invention, unsorted materials are placed on the flat inclined transfer surface of the vibration trough that sorts cylindrical materials and non-cylindrical materials. Since a plurality of feeders connected in series are used as a supply device, a gap for dropping a non-cylindrical object smaller than a cylindrical object is provided between the feeders, and these are removed in advance. In addition, since the sorting by the vibration trough efficiently proceeds and the transfer speed of the downstream feeder is made larger than the transfer speed of the upstream feeder, unsorted items in the upstream feeder in the downstream feeder The distance between each other is increased and the overlap is eliminated. Therefore, when supplied to the flat inclined transfer surface, the cylindrical object easily rolls along the inclination without any obstacles, and the non-cylindrical object is transferred to the downstream end without sliding down the flat transfer surface. Therefore, a cylindrical object and a non-cylindrical object that cannot be selected by a general sieving machine are efficiently and reliably selected.
[Brief description of the drawings]
FIG. 1 is a plan view of a sorting apparatus according to a first embodiment.
2 is a cross-sectional view taken along line [2]-[2] in FIG.
3 is a cross-sectional view taken along the line [3]-[3] in FIG.
FIG. 4 is a partially broken perspective view of a vibration trough in the sorting apparatus according to the first embodiment.
FIG. 5 is a partially broken perspective view of a vibration trough in the sorting apparatus according to the second embodiment, and corresponds to FIG. 4;
FIG. 6 is a plan view of a sorting apparatus according to a third embodiment.
7 is a cross-sectional view taken along a line [7]-[7] in FIG. 6;
[Fig. 8]
Shows a belt conveyor connection, A is a side view, B is a planar surface view.
FIG. 9 is a cross-sectional view similar to FIG. 7, illustrating a vibration trough in the sorting device according to the first modified example.
FIG. 10 is a plan view of a first conventional example.
FIG. 11 is a perspective view of a second conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sorting device 10 of 1st Example 1st vibration feeder 11 Vibration trough 20 Second vibration feeder 21 Vibration trough 30 Vibration conveyor 31 Vibration trough 33 Flat inclined transfer surface 35 Inclination chute 36 Discharge port 38 Discharge port 50 Belt conveyor 60 Balt Conveyor B Glass bottle C Metal can G Miscellaneous impurities K Gap

Claims (3)

The bottom of the vibrating trough is given a linear vibration in an oblique direction, and the non-cylindrical object does not slide in the direction intersecting the transfer direction due to the vibration in the vibrating trough, but the cylindrical object rolls downward and has a flat plate shape. In an apparatus for sorting cylindrical and non-cylindrical objects provided with an inclined transfer surface, supply unsorted items of cylindrical and non-cylindrical objects to the upstream end of the flat inclined transfer surface. The apparatus is composed of a plurality of feeders connected in series, and a gap is provided between the feeder on the upstream side and the feeder on the downstream side to drop a non-cylindrical thing smaller than the cylindrical one. The apparatus for sorting cylindrical objects and non-cylindrical objects is characterized in that the transfer speed of the feeder on the downstream side is set larger than the transfer speed of the feeder on the upstream side. The apparatus for sorting cylindrical objects and non-cylindrical objects according to claim 1, wherein the plurality of feeders are vibration feeders. The flat plate-shaped inclined transfer surface is formed in multiple stages through a step, and the kinetic energy of rolling of the cylindrical object is increased when the cylindrical object falls on the step. The sorting apparatus of the cylindrical object and non-cylindrical object of 2.

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