JP2016124664A - Bag removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag removing device capable of accurately performing the scooping up of a garbage bag and discharge at a recovery position with a simple constitution.SOLUTION: A bag removing device comprises: a horizontal part 39 where the conveying surface 25 of a chain conveyor 15 is adjacent to the folding part 37 of a hooking side and horizontally extended; and an upper inclined part 43 inclining upward from the horizontal part 39 and extending to the folding part of a discharge side. A garbage bag hooking claw 17 is fixed and mounted on the surface of a plate forming the conveying surface 25. The length D of the horizontal part 39 of the conveying surface 25 is set so as to be longer than the interval C in the longitudinal direction of the garbage bag hooking claw 17.SELECTED DRAWING: Figure 3

Description

  TECHNICAL FIELD The present invention relates to a technology for separating garbage bags containing waste such as empty cans and plastic bottles from waste, and more specifically, waste that is conveyed by being broken by a bag breaking device. The present invention relates to a bag removing device that picks up a torn garbage bag from a group and separates it from waste.

  Wastes such as empty cans and plastic bottles are collected by collection companies and local governments in a garbage bag. In order to select an object to be recycled from the waste collected and collected in the garbage bag, it is necessary to first tear the garbage bag with a bag breaking device and take the waste out of the garbage bag. In order to perform the selection process after selecting and collecting steel cans and selecting and collecting PET bottles smoothly and accurately, the torn garbage bags mixed in the waste are separated from the waste. Must. The separation of the torn garbage bags is performed by picking up the torn garbage bags that flow along with the waste when the waste is transported by the waste transport conveyor. The waste after the garbage bags are sorted is transported to the plastic bottle selection position and the steel can selection position sequentially by the waste transport conveyor, and PET bottles and empty cans are selected and collected from the waste at this selection position. Is done. Alternatively, the waste after the garbage bags are sorted is once collected in a collection box and then put into a separate recycling object selection device. The torn garbage bags are manually removed and separated while being transported by the waste transport conveyor, but this manual removal of the garbage bags is inefficient. Therefore, for example, a garbage bag removing apparatus as described in Patent Document 1 is also used.

  The bag removal apparatus described in Patent Document 1 is composed of a garbage bag conveyor that is disposed above a waste conveyor that conveys waste whose garbage bags have been broken by a bag breaking apparatus. A plurality of garbage bag hooking claws are attached to the conveyance surface of the conveyance conveyor at predetermined intervals in the length direction or in the movement direction. When the bag removing apparatus having such a configuration is operated, the torn garbage bag moving on the waste transporting conveyor is caught by the garbage bag hooking claw that is rotated by the bag removing apparatus. The trash bags transferred to the bag conveyor and then transferred to the trash bag conveyor are transported to the garbage bag collection position and collected separately from the waste.

JP-A-8-239102

  However, the bag removal apparatus of Patent Document 1 is configured by simply tilting and disposing the garbage bag transport conveyor with respect to the waste transport conveyor extending horizontally. Therefore, in order to achieve high-precision sorting of garbage bags, the garbage bags that pass without catching the garbage bag hooking claw moved to the lower end of the garbage bag conveyor are scooped by the next garbage bag hooking claw. If it is going to be configured, it is necessary to shorten the interval in the length direction of the trash bag hooking claw, but if the interval in the length direction of the trash bag hooking claw is shortened, it is continuously arranged in the length direction. At the same time, the garbage bags are easily entangled with the nail hooks. If the trash bag is entangled with many trash bag catching claws, it becomes difficult to remove the trash bag from the trash bag conveyor at the trash bag collection position, which may cause a problem in collecting the trash bag.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a garbage bag removing apparatus capable of sorting and collecting garbage bags with high accuracy.

  In order to achieve this object, the bag removing apparatus of the present invention includes a horizontal waste conveyor or a horizontal portion of the waste conveyor that conveys the waste contained in the garbage bag together with the torn garbage bag. A bag removal device for separating the torn garbage bags, the garbage bag transporting conveyor (trash bag sorting conveyor) and the garbage bag pulling arranged at equal intervals in the length direction on the transport surface of the garbage bag transporting conveyor The transport surface of the garbage bag transport conveyor includes a horizontal portion extending horizontally and an inclined portion extending obliquely upward from the horizontal portion. By configuring the horizontal portion on the transport surface, it is possible to configure so that the function of separating garbage bags does not deteriorate even if the interval in the length direction of the garbage bag hooking claws is widened. The length of the horizontal portion of the garbage bag transport conveyor or the transport surface is, for example, equal to the interval between the garbage bag hooking claws adjacent in the length direction or longer than the interval between the garbage bag hooking claws adjacent in the length direction. And it can set so that it may be shorter than the space | interval of the garbage bag hooking claws set | placed one in the length direction. If the length of the horizontal portion of the garbage bag conveyor is shorter than the interval between the adjacent garbage bag hooking claws in the length direction, for example, only one garbage bag hooking claw is always located in the horizontal portion. The risk of failing to pick up is increased. Also, if the length of the horizontal part of the garbage bag conveyor is the same as or larger than the distance between the garbage bag hooking claws placed in the length direction, the length of the horizontal part is unnecessarily long. It is set, or the distance between the trash bag hooking claws is too small. The interval between the garbage bag hooking claws can be the interval between the tips of the garbage bag hooking claws. Alternatively, when the conveying surface is configured by arranging the plates side by side, the interval between the dust bag hooking claws can be set to the interval between the centers of the plates provided with the dust bag hooking claws.

  It is preferable to form an arc-shaped recess on the traveling direction side of the garbage bag hooking claw. Accordingly, it is possible to configure a garbage bag hooking claw that has a sufficient scooping function for the garbage bag and that does not cling to the garbage bag strongly.

  The garbage bag hooking claw can be configured to have a base portion that is attached to the garbage bag conveyor and protrudes outward, and a hooking portion that is foldably attached to the tip portion of the base portion. The hooking portion can be configured to bend against the spring force of the spring means and return to the original state (for example, an upright state) when released from an external force or a large external force. If it is configured to be foldable at the base end of the garbage bag hooking claw, the impact force when the bent garbage bag hooking claw returns by the spring force becomes too strong, and the garbage bag hooking claw may be damaged early. .

  According to the present invention, it is possible to provide a bag removing device that can accurately scoop up a garbage bag and discharge it at a collection position with a simple configuration.

It is a front view which shows the whole structure of the bag removal apparatus which concerns on this invention. It is a top view for showing the conveyance surface of a bag removal apparatus. It is an enlarged view of the hook side of a bag removal apparatus. It is an enlarged view of the discharge side of the bag removing apparatus. It is a side view which shows the structure of a garbage bag hook claw. It is a front view which shows the structure of a garbage bag hooking nail | claw. It is a rear view which shows the structure of a garbage bag hooking nail | claw. It is a figure explaining the operation | movement aspect of a bag removal apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, an overall configuration of a bag removing apparatus according to the present invention will be described with reference to FIGS. 1 and 2.

  The bag removing device 1 is disposed so as to separate the garbage bags 9 discharged from the bag breaking device 3 and moving on the waste conveying conveyor 5 together with the waste 7. The bag breaking device 3 breaks the plastic garbage bag 9 or the plastic garbage bag 9 containing the waste 7 such as empty cans and plastic bottles, and discharges it on the waste conveyor 5. Transports the waste 7 discharged together with the garbage bags torn from the bag breaking device 3 to the sorting position (see arrow A in FIG. 1). The transport surface 11 (including the upper side and the lower side) of the waste transport conveyor 5 includes a horizontal transport unit 13 extending horizontally at least in front of the bag breaking device 3. The torn garbage bag 9 moving on the 13 is separated.

  The bag removing apparatus 1 has an endless chain conveyor 15 (trash bag conveyor) and a garbage bag hooking claw 17 provided on the chain conveyor 15. The chain conveyor 15 includes a plate 23 having both ends attached to the inner link 21 of one chain 19 and the corresponding inner link 21 of the other chain 19. The plate 23 is attached to each of the pair of inner links 21 and is provided in a plurality or a large number, and the conveyance surface (including the upper side and the lower side) is provided by the large number of plates 23 or along the surface of the large number of plates 23. In addition, the transport surface 25 is displayed smoothly in the drawing. A gap is provided between the plates 23. The chains 19 on both sides are respectively connected to drive sprockets 29 provided at both ends of a drive shaft shaft 27 rotatably supported on the hooking side (left side in FIG. 1) of the frame 26, and the discharge side or collection of the frame 26. The drive shaft 27 is attached to the frame 26 so as to be spanned between the driven sprockets 33 provided at both ends of the driven shaft 31 supported rotatably on the side (right side in FIG. 1). By rotating the motor 35, the plate 35 rotates endlessly in the arrow B direction (conveyance direction), and each plate 23 is moved in the conveyance direction. In addition, about the frame 26 located in the near side in FIG. 1, only two on the hook side are shown, and the remaining portions are not shown for convenience. Further, the illustration of the intermediate part of the chain conveyor 15 is also omitted.

 3 and 4, the transport surface 25 of the chain conveyor 15 (shown by a thick solid line and a broken line) extends horizontally adjacent to the hook-back portion 37. And an upper inclined portion 43 that is inclined upward from the horizontal portion 39 and extends to the discharge side folding portion 41, and the horizontal portion 39 of the conveying surface 25 is a conveying surface of the waste conveying conveyor 5. A chain conveyor 15 is arranged above the 11 horizontal transport units 13 so as to be parallel to the horizontal transport unit 13. The chain 19 is guided by a pair of upper and lower upper guides 47 that guide the roller 45 (see FIG. 5), and its extending direction changes from a horizontal state to an upwardly inclined state, and a pair of upper and lower lower guides 49 that guide the roller 45. , The extending direction changes from the downward inclined state to the horizontal state, but the conveying surface 25 also changes between the horizontal state and the inclined state in response to the change in the extending direction of the chain 19. 3 and 4, the illustration of the frame 26 is omitted.

  The garbage bag hooking claw 17 is fixedly attached to the surface of the plate 23. The two garbage bag hooking claws 17 are attached to the plate 23 at equal intervals every two plates so that the case where two pieces are attached to both ends of the plate 23 and the case where one piece is attached to the center of the plate 23 is alternately repeated. It is attached. The length C of the garbage bag hooking claw 17 is approximately 300 mm, but the length D of the horizontal portion 39 of the transport surface 25 is approximately 400 mm, and the length D of the horizontal portion 39 of the transport surface 25 is adjacent. It is longer than the interval C of the matching garbage bag hooking claws 17 and shorter than twice the interval C.

  In the figure, reference numeral 51 denotes block pieces provided at both ends of each plate 23. The block pieces 51 are arranged in a tiled manner to prevent the trash bag 9 from being entangled with the chain 19. A wall 53 is formed.

  Next, the configuration of the garbage bag hooking claw 17 will be described with reference to FIGS.

  The garbage bag hooking claw 17 includes a base portion 55 fixed to the surface of the plate 23, a claw body 61 having a base end portion 57 rotatably attached to a distal end portion of the base portion 55 by a pin 59, and a coil portion 63. A torsion spring 69 that is fitted to the outer periphery of the pin 59 and has one end 65 held by the base 55 and the other end 67 held by the base end 57 of the claw body 61. The claw body 61 extends perpendicular to the plate 23 in a free state where it is not bent. The claw body 61 is a thin and long plate piece, and an arc-shaped shallow recess 71 is provided on the distal end side on the moving side. When the claw body 61 extends perpendicularly to the plate 23, the concave portion 71 has a base end 73 and a tip end 75 both on the straight line E passing through the end of the plate 23 and perpendicular to the plate 23. The tip of the nail body 61 is formed in a shape like a sword, and the tip is pointed.

  The operation of the bag removing apparatus 1 having such a configuration will be described with reference to FIG.

  When the chain 19 is rotated and the plate 23 is moved, the torn garbage bag 9 moving along the conveying surface 11 of the waste conveying conveyor 5 is hooked by the garbage bag hooking claw 17 of the bag removing device 1. (Refer to the imaginary line F on the left side of FIG. 8), placed on the plate 23 of the chain conveyor 15, and conveyed along the transport surface 25 to the discharge position G (see FIG. 1). The garbage bag 9 carried to the discharge position G is detached from the garbage bag hooking claw 17 and falls into a garbage collection container (not shown).

  Further, when the garbage bag hooking claw 17 (claw main body 61) comes into contact with the waste 7 such as an empty can or a plastic bottle and is strongly pushed backward, the claw main body 61 moves backward against the spring force of the torsion spring 69. Since it bends, it is comprised so that the smooth conveyance of the waste 7 may not be disturbed (refer the virtual line H on the right side of FIG. 8). The claw body 61 rotates in the upright direction by the spring force of the torsion spring 69 when the pressing force or contact force from the waste 7 is weakened.

  The bag removing apparatus of the present invention can be used when the waste contained in the garbage bag is reused.

DESCRIPTION OF SYMBOLS 1 Bag removal apparatus 3 Bag breaking apparatus 5 Waste conveyance conveyor 7 Waste 9 Garbage bag 15 Chain conveyor (trash bag conveyance conveyor)
17 Garbage Bag Hook 25 Chain Conveyor Surface 39 Horizontal

Claims (4)

A bag removal device for separating the torn garbage bags from a waste transport conveyor that conveys the waste contained in the garbage bags together with the torn garbage bags,
A trash bag conveyor, and a plurality of trash bag hooking claws arranged at equal intervals in the length direction on the conveyance surface of the trash bag conveyor,
The bag removal apparatus, wherein the transport surface of the garbage bag transport conveyor includes a horizontal portion extending horizontally and an inclined portion extending obliquely upward from the horizontal portion.   The length of the horizontal portion of the trash bag conveyor is equal to the interval between the trash bag hooking claws adjacent in the length direction or longer than the interval between the trash bag hooking claws adjacent in the length direction, 2. The bag removing apparatus according to claim 1, wherein the bag removing device is shorter than a distance between the garbage bag hooking claws placed one in a length direction.   The bag removing device according to claim 1 or 2, wherein an arcuate recess is formed on the traveling direction side of the garbage bag hooking claw.   The trash bag hooking claw has a base portion that is attached to the trash bag conveyor and protrudes outward, and a hook portion that is foldably attached to a tip portion of the base portion. The bag removing apparatus according to claim 1, 2, or 3.

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