JP2013240732A - Container cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container cleaning device 10 solving the problem of durability degradation of the device due to adherence of stain, small pieces of an identification label or the like removed from a container C.SOLUTION: There is provided a container cleaning device 10 which cleans a container C by spraying a liquid L from a spray nozzle 3 conducting a swinging motion onto the container C conveyed by a conveyer 2 in a cleaning chamber 1. A duct 4 is supported by a bearing part 7 within a portion between the spray nozzle 3 and a drive part 8 for causing the spray nozzle 3 to conduct the swinging motion. The spray nozzle 3 is disposed in the cleaning chamber 1 and a drive part 8 is arranged outside the cleaning chamber 1 using the bearing part 7 as a boundary.

Description

  The present invention relates to a container cleaning device, and more particularly to a container cleaning device that removes and cleans dirt adhered to a container and an identification label attached to the container by ejecting liquid from an ejection nozzle.

  Conventionally, for example, liquids are sprayed from a spray nozzle that performs a swinging operation on various containers such as cases and trays made of synthetic resin, and the dirt attached to the containers and the identification labels attached to the containers are removed and washed. Container cleaning devices are known (see, for example, Patent Documents 1 and 2 below). According to this container cleaning apparatus, for example, dirt and old identification labels collected from a distribution destination can be quickly removed and cleaned, and the container can be reused efficiently.

  However, in these conventional container cleaning apparatuses, a drive unit such as a cam mechanism that swings the spray nozzle, and a connecting part such as a rotary joint that connects the spray nozzle that swings and an external liquid supply source are provided in the cleaning chamber. Therefore, there is a problem that the dirt removed from the container, the small pieces of the identification label, etc. adhere to these driving parts, connecting parts and the like, thereby reducing the durability of the apparatus.

  Further, as shown in FIGS. 5 and 6, as another type of container cleaning apparatus 100, a driving unit 400 that swings the spray nozzle 300 and a connection that connects the spray nozzle 300 and an external liquid supply pipe 500. All of the parts 600 are arranged outside the cleaning chamber 200, and the liquid L is sprayed from each spray nozzle 300 to the container C in the cleaning chamber 200 through the window 220 formed in the partition wall 210 of the cleaning chamber 200. It was.

  However, in this container cleaning apparatus 100, as shown in FIG. 6, the window 220 of the cleaning chamber 200 must be opened largely in response to the swinging motion of the injection nozzle 300, and the removed identification label Similarly, there is a problem that small pieces or the like are attached to the driving unit 400 or the like through the window 220 and the durability of the apparatus is lowered.

  Moreover, in this container cleaning apparatus 100, since the liquid L ejected from the ejection nozzle 300 leaks outside the cleaning chamber 200 through the window 220, the motor 410 of the drive unit 400 is avoided to avoid a short circuit accident. Had to be placed away from the window 220. Therefore, the transmission mechanism of the motor driving force becomes large and the transmission efficiency is lowered, so that a larger motor 410 has to be used, which causes a problem of increasing the size of the apparatus.

  As shown in FIG. 6, the drive unit 400 of the container cleaning apparatus 100 includes a single motor 410 disposed on the upper part of the apparatus frame 700 provided outside the cleaning chamber 200, an endless belt 420. A pair of eccentric cams 440 to which the rotational driving force of the motor 410 is transmitted via 430, and a pair of link mechanisms 450 that swing each jet nozzle 300 up and down according to the eccentric motion of each eccentric cam 440; By operating this single motor 410, the left and right injection nozzles 300 for injecting the liquid L to the left and right side surfaces of the container C are simultaneously swung.

JP 11-197620 A JP 2004-188276 A

  The present invention has been made in view of the above-described problems in the conventional container cleaning apparatus, and has a problem in that the durability of the apparatus is deteriorated due to adhesion of dirt removed from the container or small pieces of identification labels. It is an object of the present invention to provide an improved container cleaning device.

The present invention is a container cleaning device for cleaning a container by spraying a liquid from a spray nozzle that performs a swinging operation on a container conveyed by a conveyor in a cleaning chamber,
A conduit that is provided with the spray nozzle and guides the liquid supplied from a liquid supply pipe connected via a connecting portion to the spray nozzle, and a bearing that rotatably supports the conduit around an axis of the conduit. And a drive unit provided in the conduit and swinging the injection nozzle by reciprocatingly rotating the conduit around an axis of the conduit;
The conduit is supported by the bearing portion between the spray nozzle and the drive portion, the spray nozzle is disposed in the cleaning chamber with the bearing portion serving as a boundary, and the drive portion is disposed outside the cleaning chamber. It is characterized by being.

  In the present specification, the “cleaning chamber” is a space in which the container is cleaned by jetting liquid from the jet nozzle, and is partitioned by a partition so that the liquid jetted from the jet nozzle does not scatter to the outside. Space.

  Further, in the present invention, the connecting portion is composed of a rotary joint, the conduit is supported by a bearing portion between the injection nozzle and the connecting portion, and the injection nozzle is washed with the bearing portion as a boundary. It is arranged indoors, and the connection part is arranged outside the washing room.

  Further, according to the present invention, a door portion is provided in an inspection port formed in the partition wall constituting the cleaning chamber so that the door portion can be opened and closed, and the conduit portion, the bearing portion, and the driving portion are provided in the door portion. It is a feature.

  Further, according to the present invention, the drive unit is fixed to the conduit, and can swing back and forth around the axis of the conduit, and the swing end side of the swing lever is reciprocated via a link member. An eccentric cam for swinging and a motor for driving the eccentric cam are provided, and the motor is provided in the door portion.

  According to the container cleaning apparatus of the present invention, the conduit is supported by the bearing portion between the injection nozzle that injects the liquid into the container and the drive unit that swings the injection nozzle, and the injection is performed with the bearing portion as a boundary. Since the nozzle is placed inside the cleaning chamber and the drive unit is placed outside the cleaning chamber, dirt removed from the container and small pieces of identification labels can be prevented from adhering to the drive unit, improving the durability of the device. Can be made.

  Furthermore, according to the container cleaning apparatus in which the injection nozzle is arranged in the cleaning chamber with the bearing portion as a boundary, and the connecting portion including the rotary joint is arranged outside the cleaning chamber, dirt removed from the container, small pieces of the identification label, etc. It is possible to prevent adhesion to a connecting portion made of a joint, and the durability of the apparatus can be further improved.

  In addition, according to the container cleaning device in which the conduit of the injection nozzle, the bearing portion, and the drive portion are provided in the door portion that can be opened and closed at the inspection port of the cleaning chamber, the door portion is opened and maintenance of each part is easily performed. This also makes it possible to improve the durability of the apparatus.

  In addition, according to the container cleaning device in which the motor of the drive unit is provided on the door, unlike the conventional device, the transmission mechanism of the motor driving force becomes large or a larger motor must be used, An increase in the size of the apparatus can be avoided.

It is a fragmentary sectional top view of the container washing | cleaning apparatus of this embodiment. It is a partial section top view in the state where the door part of the container washing device of this embodiment was opened. It is a principal part expanded sectional top view of the container cleaning apparatus of this embodiment. FIG. 4 is a sectional view taken along the line S-S in FIG. 3. It is a fragmentary sectional top view of the conventional container washing | cleaning apparatus. It is a partial cross section side view of the conventional container washing | cleaning apparatus.

  As shown in FIG. 1, the container cleaning apparatus 10 of the present embodiment sprays a liquid L from a plurality of spray nozzles 3 that perform a swinging operation onto a container C that is transported by a conveyor 2 in the cleaning chamber 1. C is washed.

  The cleaning chamber 1 is configured by a tunnel-shaped partition wall 11 that surrounds the conveyance path of the conveyor 2, and includes a carry-in port 12 and a carry-out port 13 for carrying the container C in and out at both ends thereof. In this embodiment, as shown in FIG. 2, an inspection port 14 is formed on the side surface of the partition wall 11, and a door portion 15 is provided in the inspection port 14 so as to be opened and closed by a hinge 16. When the door portion 15 is closed and fixed by the lock lever 17, the door portion 15 constitutes a part of the partition wall 11 at the inspection port 14. A plurality of partition plates 18 are disposed on the inner surface of the partition wall 11 along the transport path of the conveyor 2, and the liquid L ejected from the ejection nozzle 3 is brought into the carry-in port 12 and the carry-out port 13 of the cleaning chamber 1. To prevent splashing outside.

  The conveyor 2 includes a pair of parallel chain conveyors 21 with attachments, and the containers C placed on the chain conveyors 21 with attachments are continuously or intermittently conveyed in the cleaning chamber 1. Further, as shown in FIGS. 3 and 4, a plurality of guide rails 22 are disposed in the cleaning chamber 1 along the conveyance path of the conveyor 2, and the conveyor 2 is ejected by the liquid L by the ejection nozzle 3. The container C is prevented from falling off from above. The conveyor 2 may be constituted by a belt conveyor or the like.

  As shown in FIG. 3, the spray nozzle 3 is detachably provided on the side surface of the conduit 4, and a liquid supply pipe is connected to one end of the conduit 4 via a connecting portion 5 including a rotary joint 51. 6 is connected. A liquid supply source (not shown) composed of, for example, a diaphragm type high-pressure pump or the like is connected to the liquid supply pipe 6, and the liquid supplied from this supply source passes through the liquid supply pipe 6, the connecting portion 5 and the conduit 4. Then, it is guided to the injection nozzle 3 and injected from the injection nozzle 3.

  The conduit 4 is supported by the bearing portion 7 so as to be rotatable around the axis A of the conduit 4, and is driven by the drive unit 8 to reciprocately rotate around the axis A. The conduit 4 is supported between the injection nozzle 3 and the drive unit 8 by a bearing portion 7 including a seal ball bearing 71, and the injection nozzle 3 is arranged in the cleaning chamber 1 with the bearing portion 7 as a boundary. The drive unit 8 is disposed outside the cleaning chamber 1. That is, in this embodiment, an opening 151 that penetrates the inner and outer surfaces of the door 15 is formed in the door 15 that forms a part of the partition wall 11 of the cleaning chamber 1, and the injection nozzle 3 is cleaned in this opening 151. The conduit 4 is supported by the bearing portion 7 that faces the chamber 1 and is disposed near the opening 151. And the drive part 8 provided in the opposite side to the injection nozzle 3 on both sides of this bearing part 7 is distribute | arranged to the outer side of the washing | cleaning chamber 1. FIG.

  Further, in the present embodiment, the connecting portion 5 composed of the rotary joint 51 is disposed on the opposite side to the injection nozzle 3 with the bearing portion 7 interposed therebetween, similarly to the driving portion 8. It is arranged outside the cleaning chamber 1 with the bearing portion 7 as a boundary. The bearing portion 7 can use, for example, a non-contact type seal bearing, a contact type seal bearing, or the like, and various design changes can be made in consideration of seal performance, rotation resistance, and the like of various bearings. Further, in the present embodiment, the other end portion (tip portion) of the conduit 4 is supported by the pair of seal ball bearings 72, but the other end portion (tip portion) of the conduit 4 is not necessarily required to be supported. .

  As shown in FIGS. 3 and 4, the drive unit 8 includes a swing lever 81 that is fixed to the conduit 4 and can reciprocally swing around the axis A of the conduit 4, and a swing end of the swing lever 81. An eccentric cam 83 that reciprocally swings the side through a link member 82 and a motor 84 that drives the eccentric cam 83 are configured. The swing lever 81 of the drive unit 8 is fixed between the bearing unit 7 and the connection unit 5 in the conduit 4, and the entire drive unit 8 including the link member 82, the eccentric cam 83, and the motor 84 is outside the cleaning chamber 1. It is arranged. The motor 84 of the drive unit 8 is provided on the door 15 of the cleaning chamber 1.

  In this embodiment, as shown in FIG. 4, two parallel upper and lower conduits 4 are disposed in the door portion 15 of the cleaning chamber 1, and the upper and lower two swing levers 81 provided in each conduit 4 are swung. The moving end is axially connected by a single link member 82. The link member 82 is formed with a long hole 821 that allows the eccentric cam 83 to relatively reciprocate. Thus, by operating the electric motor 84 to drive and rotate the eccentric cam 83, the link member 82 can be reciprocally moved in a circular arc, and the two upper and lower rocking levers 81 are reciprocally rocked. Each of the spray nozzles 3 provided at 4 is swung. In this embodiment, as shown in FIG. 3, the axis A of the conduit 4 and the transport direction D of the conveyor 2 are parallel to each other, and each spray nozzle 3 is swung vertically. .

  When the container cleaning apparatus 10 according to the present embodiment having the above-described configuration is used to clean, for example, a container C that has been collected from a distribution destination and has an old identification label attached to a side surface, the container C is first moved into the cleaning chamber 1 by the conveyor 2. Carry in.

  Next, as shown in FIG. 1, high-pressure liquid L is ejected from each ejection nozzle 3 while swinging each ejection nozzle 3 up and down while continuously transporting containers C by the conveyor 2 in the cleaning chamber 1. . At this time, the container C is moved in the horizontal direction by the conveyor 2 and each spray nozzle 3 swings in the vertical direction, so that the liquid L sprayed from each spray nozzle 3 is discharged from the end of the side surface of the container C. It can be made to collide evenly over the entire side surface in order. In this way, the old identification label stuck on the container C and the dirt adhering to the container C are reliably and quickly removed and washed.

  Thereafter, the container C is carried out of the cleaning chamber 1 by the conveyor 2, and the container C is conveyed to, for example, a drying device as necessary.

  As described above, the container cleaning device 10 of the present embodiment supports the conduit 4 by the bearing portion 7 between the injection nozzle 3 that injects the liquid L into the container C and the drive unit 8 that swings the injection nozzle 3. Since the injection nozzle 3 is disposed in the cleaning chamber 1 and the drive unit 8 is disposed outside the cleaning chamber 1 with the bearing portion 7 as a boundary, dirt removed from the container C, small pieces of identification labels, and the like are driven. Adhering to the part 8 can be prevented, and the durability of the apparatus can be improved.

  Furthermore, the container cleaning apparatus 10 of the present embodiment supports the conduit 4 by the bearing portion 7 between the injection nozzle 3 that injects the liquid L and the connecting portion 5 including the rotary joint 51, and this bearing portion 7 is bounded by the boundary 7. Since the spray nozzle 3 is arranged in the cleaning chamber 1 and the connecting portion 5 is arranged outside the cleaning chamber 1, dirt removed from the container C, small pieces of identification labels, etc. are connected to the rotary joint 51. 5 can also be prevented, and the durability of the apparatus can be further improved.

  Moreover, the container cleaning apparatus 10 of this embodiment has the conduit | pipe 4, the connection part 5, the bearing part 7, and the drive part 8 of the injection nozzle 3 in the door part 15 provided in the inspection port 12 of the cleaning chamber 1 so that opening and closing is possible. Since it is provided, it is possible to easily perform maintenance of each part by opening the door 15, and this can also improve the durability of the apparatus.

  Moreover, since the liquid L ejected from the ejection nozzle 3 does not leak to the outside of the cleaning chamber 1, the container cleaning apparatus 10 of the present embodiment does not leak even if the motor 84 of the drive unit 8 is provided in the door portion 15. The short circuit accident of the electric motor 84 by L is not caused. Therefore, as shown in FIG. 1, motors 84 for swinging the left and right injection nozzles 3 facing the left and right side surfaces of the container C can be individually provided on the left and right door portions 15, respectively. As shown in FIG. 6, there is no problem that the transmission mechanism for the motor driving force becomes large, a larger motor has to be used, and the apparatus becomes large.

  The container cleaning apparatus of the present embodiment has been described above, but the present invention can be implemented in other forms.

  For example, in the above embodiment, as shown in FIG. 3, the liquid supply pipe is fixed to the one end side of the conduit 4 through the connecting portion 5 including the rotary joint 51 while fixing the swing lever 81 of the driving portion 8. However, the present invention is not limited to this. For example, the swing lever 81 of the driving unit 8 is fixed to one end side of the conduit 4, while the other end of the conduit 4 is fixed. The liquid supply pipe 6 may be connected to the part side via a connecting part 5 including a rotary joint 51. In this case, the conduit 4 is supported by the one bearing portion 7 between the injection nozzle 3 and the driving portion 8, while being supported by the other bearing portion between the injection nozzle 3 and the connecting portion 5, The spray nozzle 3 can be disposed inside the cleaning chamber 1, and the drive unit 8 and the connecting unit 5 can be disposed outside the cleaning chamber 1.

  Moreover, in the said embodiment, as shown in FIG. 3, the two injection nozzles 3 are provided in the one conduit | pipe 4, and the injection direction of the liquid L by each injection nozzle 3 is mutually opposite, and it is in the axial center A of the conduit | pipe 4. The front surface F and the rear surface R of the container C can be cleaned by inclining with respect to the container C. However, depending on the shape, size, etc. of the container C to be cleaned, one or three are provided in one conduit 4. Two or more injection nozzles 3 may be provided, and various design changes can be made for the injection direction of the injection nozzle 3.

  Moreover, in the said embodiment, as shown in FIG. 1, although the injection nozzle 3 which each wash | cleans the left and right side surfaces of the container C is arrange | positioned on the right and left side surfaces (door part 15) of the partition 11 of the cleaning chamber 1, The present invention is not limited to this. For example, an injection nozzle for cleaning the container C by spraying the liquid L from above or below the container C is disposed on the upper surface or the lower surface of the partition wall 11 of the cleaning chamber 1. May be. According to the present invention, the conduit 4, the connecting portion 5, the bearing portion 7 and the drive portion 8 of the injection nozzle 3 can be arranged in a more compact manner, so that the conduit 4, the connecting portion 5, and the bearing of the injection nozzle 3 can be arranged. The unit 7 and the drive unit 8 can be appropriately disposed on the left, right, upper, and lower surfaces of the partition wall 11 of the cleaning chamber 1 as necessary, and the degree of design freedom can be significantly improved.

  Moreover, in the said embodiment, as shown in FIG.3 and FIG.4, although the liquid L is injected from each injection nozzle 3 in a horizontal fan shape, of course, it is not limited to this, The liquid L is linear. You may make it inject.

  The present invention can be carried out in other modes without various modifications, modifications, and variations based on the knowledge of those skilled in the art without departing from the spirit of the present invention. In addition, any invention-specific matters may be replaced with other technologies within the scope where the same action or effect occurs, and the integrally-configured invention-specific matters are constituted by a plurality of members. Alternatively, the invention-specific matters configured from a plurality of members may be implemented in an integrated configuration.

DESCRIPTION OF SYMBOLS 10 Container washing | cleaning apparatus 1 Cleaning chamber 11 Bulkhead 14 Inspection port 15 Door part 2 Conveyor 3 Injection nozzle 4 Pipe | line 5 Connection part 51 Rotary joint 6 Liquid supply pipe 7 Bearing part 8 Drive part 81 Swing lever 82 Link member 83 Eccentric cam 84 Motor A (conduit) axis C container L liquid

Claims (4)

A container cleaning device for cleaning a container by spraying a liquid from a spray nozzle that performs a swinging operation on a container conveyed by a conveyor in a cleaning chamber,
A conduit that is provided with the spray nozzle and guides the liquid supplied from the liquid supply pipe connected via the connecting portion to the spray nozzle;
A bearing that rotatably supports the conduit about an axis of the conduit;
A drive unit provided in the conduit and swinging the conduit around the axis of the conduit to swing the spray nozzle;
The conduit is supported by the bearing portion between the spray nozzle and the drive portion, the spray nozzle is disposed in the cleaning chamber with the bearing portion serving as a boundary, and the drive portion is disposed outside the cleaning chamber. A container cleaning device. The connecting portion is composed of a rotary joint,
The conduit is supported by a bearing portion between the spray nozzle and the connecting portion, the spray nozzle is disposed in the cleaning chamber with the bearing portion serving as a boundary, and the connecting portion is disposed outside the cleaning chamber. The container cleaning apparatus according to claim 1, wherein   The door part is provided in the inspection port formed in the partition which comprises the said washing | cleaning chamber so that opening and closing is possible, The said conduit, the said bearing part, and the said drive part are provided in this door part. The container cleaning apparatus as described. The drive unit is
A swing lever fixed to the conduit and capable of reciprocally swinging about an axis of the conduit;
An eccentric cam that reciprocally swings the swing end side of the swing lever via a link member;
A motor for driving the eccentric cam,
The container cleaning apparatus according to claim 3, wherein the door is provided with the motor.

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