JP2016064346A - Droplet removal device for can washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a droplet removal device for can washing capable of effectively removing contents sticking to a can conveyed whose axis faces a vertical direction.SOLUTION: A can C whose axis faces a vertical direction is supported and conveyed by a belt-like body 22 of a conveyer 21; at an upstream side washing part 24 arranged on the uppermost stream side in a can conveying direction, water is sprayed onto the top surface and the outer peripheral surface of the upper end part of the can C; at a next upstream side droplet removal part 25, pressurized air is sprayed onto the top surface of the upper end part of the can C to blow off liquid present on the top surface of the upper end part of the can C; at a next downstream side washing part 26, water is sprayed onto the top surface and the outer peripheral surface of the upper end part of the can C; and at a next downstream side droplet removal part 27, pressurized air is sprayed onto the top surface and the outer peripheral surface of the upper end part of the can C to blow off liquid present on the top surface and the outer peripheral surface of the upper end part of the can C. Pressurized air from top surface air nozzles 36 and 37 is blown out downward obliquely toward the upstream side in the can conveying direction. Pressurized air blown out from an outer peripheral surface air knife 38 is moved from the upper side to the lower side of the can outer peripheral surface with conveyance of the can C.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a can water drop removing device that removes the contents adhering to a can during transportation of the can, and in particular, the water is washed to remove the contents, and water and water droplets adhering to the water are also removed. It is suitable for.

  As what wash | cleans the can to which the content adhered, there exists a thing described in the following patent document 1, for example. This cleaning device is for cleaning the outer surface of a beverage container to be transported on a line. The timing of a container for transporting a container transported by a single-row transport unit is separated by a timing screw, and a cleaning liquid is sprayed in that state, thereby cleaning the container body. The entire circumference of the part is cleaned. For example, in the manufacturing process of canned beer, after filling beer into an empty can without a lid with a bottomed cylindrical body, a lid with a pull tab is attached (also referred to as winding). At this time, effervescent beer adheres to the outside of the can. Since the content beer is organic, if it adheres to the production line of canned beer, the fouling proceeds. For this reason, conventionally, while conveying the axial direction of the cylindrical can up and down, water is sprayed on the top and outer peripheral surfaces of the upper end of the can with the contents attached thereto, and then washed with water. Pressurized air is blown onto the top surface and the outer peripheral surface of the upper end portion to blow off liquids such as water and beer.

Japanese Patent Laid-Open No. 11-19601

However, in the conventional canned beer flushing water drop removing device, there is room for improvement in removing beer adhering to the can, that is, the contents.
The present invention has been made paying attention to the above-mentioned problems, and canned water droplet removal capable of effectively removing contents attached to a can conveyed with its axis line directed in the vertical direction. The purpose is to provide a device.

  In order to solve the above-described problems, according to one aspect of the present invention, the axial line of the can is conveyed in the vertical direction in a state where both ends in the axial direction of the cylindrical outer shape are sealed, and conveyed. Washing with water to remove the contents adhering to the can, and removing the water and water droplets adhering to the can, the bottom line of the bottom of the can whose axis is directed vertically is transported with a belt Conveyor, upstream washing section that sprays water on the top and outer peripheral surfaces of the upper end of the can on the most upstream side in the can conveying direction by the conveyor, and at least the upper end of the can on the downstream side in the can conveying direction of the upstream washing section An upstream water drop removing unit that blows off the water and water droplets attached to at least the top end top surface of the can by blowing pressurized air, and the upper end top surface and outer circumference of the can on the downstream side in the can transport direction of the upstream water droplet removing unit Downstream flush unit that sprays water on the surface and cans in the downstream flush unit Washing with a downstream water drop removing unit that blows pressurized air onto the top and outer peripheral surfaces of the upper end of the can on the downstream side in the feed direction to blow off water and water droplets adhering to the top and outer peripheral surfaces of the can. A can water droplet removal apparatus is provided.

  In the canned water droplet removing apparatus of the present invention, the contents attached to the can conveyed with the axis line directed in the vertical direction can be effectively removed.

It is explanatory drawing of the can beer manufacturing process to which the can water droplet removal apparatus of this invention was applied. It is a schematic block diagram of the can water-drop removal apparatus of FIG. It is explanatory drawing of the can washing part of FIG. It is explanatory drawing of the water droplet removal part of FIG. It is explanatory drawing of the partition plate of FIG. It is explanatory drawing of a can-wash water drop removal test. It is explanatory drawing of a can-wash water drop removal test. It is explanatory drawing of a can-wash water drop removal test. It is explanatory drawing of a can-wash water drop removal test. It is explanatory drawing of an effect | action of the can water droplet removal apparatus of FIG. It is explanatory drawing of an effect | action of the can bottom water droplet removal apparatus of FIG. It is explanatory drawing of an effect | action of the bottom washing water droplet removal apparatus of FIG. It is explanatory drawing of an effect | action of the bottom washing water droplet removal apparatus of FIG. It is explanatory drawing of an effect | action of the bottom washing water droplet removal apparatus of FIG.

  Next, an embodiment of the can water drop removing apparatus of the present invention will be described with reference to the drawings. FIG. 1 shows a can beer manufacturing process to which the canned water droplet removing apparatus of this embodiment is applied. In this embodiment, a cylindrical can is used, and the can is conveyed with its axis line up and down so that the pull tab side or the opening side is always upward. The can has a cylindrical shape with a bottom until it is covered, and one end in the axial direction is open, and the opening is covered with a lid with a pull tab. That is, the bottom of the bottomed cylindrical shape is downward until the can is covered, and the same bottom is downward after the lid is closed. As is well known, the bottom of the bottom of the can has a central portion that is recessed inwardly in a curved shape. Further, the top surface of the upper end of the covered can is also recessed inward from the uppermost edge.

  In this canned beer manufacturing process, an empty can that is not covered with the depalletizer 1 is first supplied onto the line, and then the necessary items are printed on the bottom of the can with an empty can inkjet printer (IJP in the figure). The can inkjet printer checker 3 determines whether or not necessary items are properly printed. The can on which the necessary items are properly printed is inspected by the inner surface inspection machine 4 and cleaned by the rinser 5. The washed can is filled with the content of the filler 6, that is, beer, and the lid is covered with the seamer 7 (also referred to as winding). The can with the lid is washed and removed with a washing water drop removing device 8 and heated to a room temperature with a heater 10 through a valve monitor 9. In the heated can, water droplets on the top surface of the upper end portion are removed by the can mouth water droplet removing device 11, and whether or not the lid is properly wound by the tightening inspection machine 12 is inspected. The cans with the lids properly wound are attached with seals by a seal labeler 13, and the contents inspection, that is, beer is inspected by a taste inspection machine 14, and the can bottom water drop removing device 15 Water droplets on the bottom surface of the lower end are removed. The cans from which the water droplets on the bottom surface of the lower end are removed are packed into a paper pack, for example, by 6 cans by the multipack caser 16 and then stored in a case containing 24 cans by the caser 17. After the can stored in the case is inspected by the carton inspection machine 18 to be properly stored in the case and the box foreign object inspection machine 19 inspects that no foreign substance is mixed in the case, the palletizer 20 The case is stacked and unloaded.

  In the canned beer manufacturing process of this embodiment, the canned water droplet removing apparatus of the present invention is applied to the canned water droplet removing apparatus 8 of FIG. As described above, effervescent beer is filled in the can with the filler 6 and adheres to the outside of the can when the lid is wound with the seamer 7. Since beer is an organic substance, if the beer attached to the can adheres to the production line, the fouling proceeds. Therefore, the can water drop removing device 8 disposed on the downstream side of the seamer 7 in the can conveyance direction cleans (washes) the can in which beer is enclosed and the beer adheres to the outside, along with the adhering water and water droplets. Also remove beer.

  FIG. 2 is a schematic configuration diagram of the canned water droplet removing apparatus 8 of this embodiment. Inside the can-washing water droplet removing device 8, the bottom surface of the can C is supported by the belt-like body 22 of the conveyor 21, and is conveyed from the left to the right in the figure. The apparatus is housed inside a series of covers 23, and the cans C are conveyed in a straight line in a single row (one row). Even within the apparatus, the can C is conveyed with its axis line directed up and down so that the lid on the pull tab side faces upward. The inside of the cover 23 of this can water drop removing device 8 is divided into four along the can transport direction, and each of them has an upstream water wash section 24, an upstream water drop remove section 25 from the most upstream side in the can transport direction, A downstream water washing section 26 and a downstream water droplet removing section 27 are formed. The upstream water washing section 24 performs water washing by spraying water onto the top surface and the outer peripheral surface of the upper end of the can C. The upstream water droplet removing unit 25 is accumulated on or attached to the top surface of the upper end of the can C by blowing pressurized air onto the top surface of the upper end of the C can on the downstream side of the upstream water washing unit 24 in the can conveyance direction. Blows away liquids such as diluted beer, water or water droplets. The downstream water washing section 26 performs water washing by spraying water onto the top surface and outer peripheral surface of the upper end portion of the can C on the downstream side of the upstream water droplet removing section 25 in the can conveyance direction. The downstream-side water droplet removing unit 27 is blown to the top surface and the outer peripheral surface of the upper end portion of the can C by the pressurized water blown to the upper surface and the outer peripheral surface of the can C on the downstream side of the downstream water washing unit 26 in the can conveyance direction. Blows away liquids such as diluted beer, water or water droplets that are attached or adhered. In addition, the outer peripheral surface of the can C supported and transported by the belt-like body 22 of the conveyor 21 is guided from both sides of the can transport direction by a guide (not shown).

  FIG. 3 a is a front view of the upstream flush unit 24 and the downstream flush unit 26, and FIG. 3 b is a side view of the upstream flush unit 24 and the downstream flush unit 26. Here, the state of only one can C is shown. As shown in FIG. 2, the upstream water washing section 24 includes five upstream top water shower nozzles 28 for spraying water on the top surface of the upper end of the can C along the can conveying direction. Further, in the upstream side water washing section 24, the upstream outer peripheral surface water shower nozzles 29U and 29L for spraying water on the outer peripheral surface of the can C from the side in the can conveying direction are arranged in two stages up and down by five on one side in the can conveying direction. Prepare. In other words, the upstream outer peripheral surface water shower nozzles 29U and 29L of the upstream water washing section 24 are arranged in a total of 10 in two in the upper and lower stages on one side in the can conveyance direction, and a total of 20 on both sides in the can conveyance direction. On the other hand, as shown in FIG. 2, the downstream water washing section 26 includes three downstream top surface water shower nozzles 30 for spraying water on the top surface of the upper end of the can C along the can conveying direction. Moreover, in the downstream side water-washing part 26, the downstream outer peripheral surface water shower nozzles 31U and 31L for spraying water on the outer peripheral surface of the can C from the side in the can conveyance direction are arranged in two stages on the one side in the can conveyance direction. Prepare. That is, the downstream outer peripheral surface water shower nozzles 31U and 31L of the downstream water washing section 26 are arranged in two in the upper and lower stages on one side in the can conveyance direction, a total of six, and a total of twelve on both sides in the can conveyance direction.

  The top surface water shower nozzles 28 and 30 used in the upstream side water washing section 24 and the downstream side water washing section 26 and the outer peripheral surface water shower nozzles 29U, 29L, 31U, and 31L have the same shape, and the water (liquid) is flat and fan-shaped. Each of the water outlets 32 is single and the spray angle (fan central angle) is 110 °. In both the upstream flushing section 24 and the downstream flushing section 26, the outer peripheral surface water shower nozzles 29U, 29L, 31U, 31L are arranged in a vertical direction in a plane in which water blown from the water blowing port 32 is perpendicular to the can conveyance direction. That is, the fan is arranged so as to spread in the vertical direction. On the other hand, in the upstream flush unit 24 and the downstream flush unit 26, the top surface shower nozzles 28 and 30 are such that the water blown out from the water outlet 32 is inclined so that the surface where the fan spreads is upstream in the can conveying direction. It is arranged to face down. All the top surface water shower nozzles 28 and 30 are common via the top surface water supply pipe 33, and all the outer peripheral surface water shower nozzles 29U, 29L, 31U and 31L are common via the outer peripheral surface water supply pipe 34. It is connected to the water supply equipment 35 to be used. In this embodiment, in the upstream flush unit 24 and the downstream flush unit 26, the top surface water shower nozzles 28 and 30, the upper outer peripheral surface water shower nozzles 29U and 31U, and the lower outer peripheral surface water shower nozzles 29L and 31L are blown out in this order. Water flow rate was set to be small. That is, the flow rate of water blown from the top surface water shower nozzles 28 and 30 is the largest, and the flow rate of water blown from the lower outer peripheral surface water shower nozzles 29L and 31L is the smallest.

  4A is a front view of the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27, and FIG. 4B is a side view of the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27. Here, the state of only one can C is shown. As shown in FIG. 2, the upstream water droplet removing unit 25 includes two upstream top surface air nozzles 36 for blowing pressurized air onto the top surface of the upper end of the can C along the can conveying direction. On the other hand, the downstream water droplet removing unit 27 includes three downstream top surface air nozzles 37 for blowing pressurized air onto the top surface of the upper end of the can C as shown in FIG. Further, the downstream water droplet removing unit 27 includes three outer peripheral surface air knives 38 for spraying pressurized air on the outer peripheral surface of the can C from the side in the can transport direction on one side in the can transport direction. That is, the outer peripheral surface air knives 38 of the downstream water droplet removing unit 27 are arranged three on one side in the can conveyance direction and six in total on both sides in the can conveyance direction. In the upstream water droplet removing unit 25, there is no outer peripheral air knife.

  The top air nozzles 36 and 37 used in the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27 have the same shape, and blow out the pressurized air in a flat fan shape. Single. These air nozzles 36 and 37 have a shape obtained by crushing the tip of the circular tube thinly and flatly. In both the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27, the top surface air nozzles 36 and 37 are such that the pressurized air blown from the air blowing port 39 is inclined so that the surface where the fan spreads is upstream in the can conveying direction. It is arranged to face down. The top air nozzles 36 and 37 are connected to a common pressurized air supply facility 43 via a top surface air pipe 41. The flow rate of the pressurized air blown out from all the air nozzles 36 and 37 of the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27 was made equal.

  On the other hand, the outer peripheral surface air knife 38 used in the downstream water droplet removing unit 27 continuously blows out pressurized air from a continuous air outlet 40 along the length of the pipe-shaped main body 38a. In other words, the outer peripheral air knife 38 has a pressurized air blowing port 40 continuous in a preset direction. This outer peripheral surface air knife 38 is arranged with the main body 38a obliquely on both sides of the can transport direction so that the air outlet 40 faces the outer peripheral surface of the can C and the upstream side in the can transport direction is upward and the downstream side in the can transport direction is downward. doing. That is, as the can C is transported, the pressurized air blown from the air outlet 40 moves downward from above the outer peripheral surface of the can C, and as a result, on the outer peripheral surface of the can C over the axial direction of the can C. Pressurized air is blown. The outer peripheral surface air knife 38 is connected to a common pressurized air supply facility 43 via an outer peripheral surface air pipe 42. All the outer peripheral air knives 38 have the same shape, and the flow rate of the pressurized air blown out from each outer peripheral air knife 38 is equal.

  In addition, the outer periphery where the top surface water shower piping 28 and the outer peripheral surface water shower nozzles 29U, 29L, 31U, and 31L are connected to the upper surface water shower nozzles 28 and 30 in the upstream side water washing section 24 and the downstream side water washing section 26. The surface water supply pipe 34 and the upstream surface air pipe 41 to which the top surface air nozzles 36 and 37 are connected in the upstream water droplet removing unit 25 and the downstream water droplet removing unit 27 and the outer surface air to which the outer surface air knife 38 is connected. The pipe 42 is connected to the elevating cylinder 45 via a connecting member 44. The elevating cylinder 45 elevates and lowers the top surface water supply pipe 33, the outer peripheral surface water supply pipe 34, the top surface air pipe 41, and the outer peripheral surface air pipe 42 in the vertical direction via the connecting member 44. In order to adjust the water blown from the water shower nozzle and the pressurized air blown from the air nozzle or air knife to be blown to the same position with respect to the can C by the 350 mL can and the 500 mL can C flowing through the production line. Is. In addition, the ceiling of the cover 23 of each of the upstream water washing unit 24, the upstream water droplet removing unit 25, the downstream water washing unit 26, and the downstream water droplet removing unit 27 partitioned by a partition plate, which will be described later, A shower device 46 for blowing out hot water and detergent bubbles is provided. This shower device 46 is for cleaning the inside of the cover 23 by blowing detergent bubbles, water or hot water into the cover 23 when the can C is not being transported into the can water-drop removing device 8. .

  As described above, between the upstream water washing unit 24 and the upstream water droplet removal unit 25, between the upstream water droplet removal unit 25 and the downstream water washing unit 26, and between the downstream water washing unit 26 and the downstream water droplet removal unit 27, As shown in FIG. 5, partition plates 47 each having a hole portion 48 through which the can C can pass are provided, and the space between them is partitioned. For example, at the upstream top surface air nozzle 36 of the upstream water droplet removing unit 25 and the downstream top surface air nozzle 37 of the downstream water droplet removing unit 27, the pressurized air is blown obliquely downward toward the upstream side in the can conveying direction. . Since the top surface of the can C is slightly recessed from the uppermost edge of the can C, water such as water and diluted beer is directed toward the upstream side in the can conveying direction with the pressurized air sprayed. Scatter. Similarly, since water is blown obliquely downward from the downstream top surface water shower nozzle 30 of the downstream water washing section 26 toward the upstream side in the can conveying direction, the water sprayed on the top surface of the can C, etc. Splattered toward the upstream side of the can conveyance direction. Therefore, between the upstream water washing unit 24 and the upstream water droplet removing unit 25, between the upstream water droplet removing unit 25 and the downstream water washing unit 26, and between the downstream water washing unit 26 and the downstream water droplet removing unit 27. By arranging the partition plate 47 for each, the water scattered to the upstream side in the can conveying direction is cut off so that excess water does not adhere to the can C by the equipment on the upstream side.

  Prior to manufacturing the canned water droplet removing apparatus 8 of this embodiment, the present inventors conducted a test for further reducing the contents adhering to the can C after the apparatus, that is, the beer components. FIG. 6 shows a configuration equivalent to that of a conventional can water drop removing device, with a slight separation in the can conveying direction, and a water washing portion (same as the upstream side water washing portion 24 in the embodiment) and a water drop removing portion (implemented with pressurized air). The same as the downstream water droplet removing unit 27 in the form) is arranged. FIG. 7 shows that the upstream water droplet removing unit 25 is arranged downstream of the upstream water washing unit 24 in the can conveyance direction, similar to the washed water droplet removing device 8 of this embodiment, with respect to the washed water droplet removing device of FIG. The downstream water washing unit 26 is disposed downstream of the can conveyance direction and upstream of the downstream water droplet removing unit 27 in the can conveyance direction. FIG. 8 is obtained by adding a water droplet removal step by blowing pressurized air between the upstream water washing unit 24 and the downstream water droplet removing unit 27 in FIG. 6. FIG. 9 is a view in which a water washing step is added between the upstream water washing section 24 and the downstream water droplet removing section 27 in FIG. 6. As a result of the test, the remaining amount of beer components at the outlet of the apparatus is the most in the order of FIG. 6, FIG. 8, FIG. 9, FIG. 7, and the steps of water washing, water droplet removal, water washing, water droplet removal remove the beer components most. It turns out that you can. In this test, even if the amount of water sprayed on the top surface of the can C is simply increased, only the supernatant portion of the liquid accumulated on the top surface of the can C is spilled, and the bottom of the beer component in the liquid pool is concentrated. It was found that the part was not discharged. That is, the liquid collected on the top surface of the can C by the upstream water washing is blown off by the upstream water droplet removing unit, and the beer component on the top surface of the can C is diluted further by the downstream water washing, and finally the downstream side The beer component can be removed most efficiently by blowing it off at the water droplet removing section.

  FIG. 10 is a cross-sectional view of the upper end of the can C before the contents, that is, the beer is enclosed and transported to the can-washing water droplet removing device 8, and in this state, the beer components indicated by the dark shading are those of the can C. It adheres to the top surface and the outer peripheral surface of the upper end. FIG. 11 is a cross-sectional view of the upper end of the can C in the upstream water washing section 24, and the beer components adhering to the can C are diluted with water sprayed on the top surface and outer peripheral surface of the upper end of the can C. Further, in particular, since water is blown obliquely downward from the upstream top surface water shower nozzle 28 toward the upstream side in the can conveying direction, the water is blown at a blowing speed in which the conveying speed of the can C is added to the water blowing speed. Can be sprayed on the top surface of the upper end of the can C, and the liquid that is trying to accumulate in the depression on the top surface of the upper end of the can C can be actively blown off. FIG. 12 is a cross-sectional view of the upper end portion of the can C in the upstream water droplet removing unit 25, and the liquid in which the beer component is diluted is blown away by the pressurized air sprayed on the top surface and the outer peripheral surface of the upper end portion of the can C. In particular, since the pressurized air is blown obliquely downward from the upstream top air nozzle 36 toward the upstream side in the can conveying direction, the blowing speed in which the conveying speed of the can C is added to the blowing speed of the pressurized air. The pressurized air is sprayed onto the top surface of the upper end portion of the can C, and the liquid accumulated in the depression on the top surface of the upper end portion of the can C can be actively blown off. FIG. 13 is a cross-sectional view of the upper end of the can C in the downstream water washing section 26, and the beer component adhering to the can C is further diluted with water sprayed on the top surface of the upper end of the can C. Similarly to the upstream water washing section 24, water is sprayed onto the top surface of the upper end of the can C at a spraying speed in which the transport speed of the can C is added to the water blowing speed, and the top surface of the top of the can C is depressed. It is possible to actively blow off the liquid that is trying to accumulate in the water. FIG. 14 is a cross-sectional view of the upper end portion of the can C in the downstream water droplet removing unit 27, and the liquid in which the beer component is further diluted is blown away with pressurized air sprayed on the top surface or outer peripheral surface of the upper end portion of the can C. Similarly to the upstream water droplet removal unit 25, the pressurized air is blown onto the top surface of the upper end of the can C at a blowing speed in which the conveying speed of the can C is added to the blowing speed of the pressurized air. The liquid accumulated in the depression on the top surface of the part can be actively blown off. Moreover, since the pressurized air sprayed on the outer peripheral surface of the can C moves from the upper side to the lower side as the can C is transported, liquid such as water and water droplets adhering to the outer peripheral surface of the can C can be removed. It can be removed by actively blowing from the lower end.

  In this embodiment, the outlet of the canned water droplet removing apparatus 8 and the outlet of the conventional canned water droplet removing apparatus shown in FIG. The amount of COD per can was compared. The amount of COD is an abbreviation for Chemical Oxygen Demand, which is translated into chemical oxygen demand, and mainly indicates the amount of organic matter present. As a result, the COD amount at the outlet of the conventional can water drop removing apparatus was 0.6 mg / can, whereas the COD amount at the outlet of the can water drop removing apparatus of the embodiment was 0.17 mg / can, The remaining amount of beer components could be reduced to 1/3 or less.

  Thus, in the can-washing water droplet removing apparatus of this embodiment, the axial line of the can C is conveyed in the vertical direction in a state where both ends in the axial direction of the cylindrical can C are sealed, and are conveyed. The purpose is to remove the liquid adhering to the can by washing with water to remove the contents adhering to the can C. For that purpose, the bottom surface of the lower end of the can C whose axis is directed in the vertical direction is supported by the belt-like body 22 of the conveyor 21 and conveyed. An upstream water washing section 24 is arranged on the most upstream side in the can conveyance direction by the conveyor 21, and water is sprayed on the top surface and the outer peripheral surface of the upper end of the can C. An upstream water drop removing unit 25 is arranged downstream of the upstream water washing unit 24 in the can conveyance direction, and at least the top end surface of the can C is present by blowing pressurized air to at least the top end surface of the can C. Blow away the liquid you want. A downstream water washing unit 26 is disposed downstream of the upstream water droplet removing unit 25 in the can conveyance direction, and water is sprayed onto the top surface and the outer peripheral surface of the upper end of the can C. A downstream water drop removing unit 27 is disposed downstream of the downstream water washing unit 26 in the can conveyance direction, and pressurized air is blown onto the top surface and the outer peripheral surface of the can C so that the top surface and the outer periphery of the upper end of the can C are blown. Blow away the liquid present on the surface. Thereby, the contents adhering to the can C can be effectively removed.

Further, the upstream water droplet removing unit 25 has a single upstream air nozzle 36 having a single air outlet 39 for pressurized air, and the pressurized air blown from the upstream air nozzle 36 is in the can conveying direction. The upstream top air nozzle 36 was arranged so as to be blown obliquely downward toward the upstream side. Thereby, the liquid which exists in the upper end part top face of can C can be blown off effectively.
Further, the downstream water droplet removing section 27 has a single air outlet 39 for the pressurized air having a single downstream top surface air nozzle 37, and the pressurized air blown from the downstream top surface air nozzle 37 is in the can conveying direction. The downstream top air nozzle 37 was arranged so as to be blown obliquely downward toward the upstream side. Thereby, the liquid which exists in the upper end part top face of can C can be blown off effectively.

Further, the downstream water droplet removing unit 27 has an outer peripheral air knife 38 in which an air outlet 40 for pressurized air continues in a preset direction, and the air outlet of the outer peripheral air knife 38 as the can C is conveyed. The outer peripheral surface air knife 38 was arranged so that the pressurized air blown out from the mouth 40 moved downward from above the outer peripheral surface of the can. Thereby, the liquid adhering to the outer peripheral surface of the can C can be moved from the upper part to the lower part, and can be effectively blown off from the bottom surface of the lower end part of the can C.
Further, the upstream water washing section 24, the upstream water droplet removing section 25, the downstream water washing section 26, and the downstream water droplet removing section 27 are arranged in a series of covers 23, and a hole having a size through which the transported can C passes. 48 is formed between the upstream water washing section 24 and the upstream water droplet removing section 25, between the upstream water droplet removing section 25 and the downstream water washing section 26, and between the downstream water washing section 26 and the downstream water droplets. It arrange | positioned in each between the removal parts 27. Thereby, the liquid which splatters to the upstream side of the can transport direction can be blocked, and the excess liquid can be prevented from adhering to the can C by the equipment upstream of the can transport direction.

DESCRIPTION OF SYMBOLS 1 Depalletizer 2 Empty can inkjet printer 3 Empty can inkjet printer checker 4 Inner surface inspection machine 5 Rinzer 6 Filler 7 Cima 8 Washing water drop removal device 9 Valve monitor 10 Heating machine 11 Can mouth water drop removal device 12 Tightening inspection machine 13 Seal Labeler 14 Tightening inspection machine 15 Can bottom water drop removal device 16 Multi-pack caser 17 Caser 18 Carton inspection machine 19 Foreign body inspection machine 20 Depalletizer 21 Conveyor 22 Strip body 23 Cover 24 Upstream water washing section 25 Upstream water drop removal section 26 Downstream Side water washing unit 27 Downstream water drop removing unit 28 Upstream top surface water shower nozzle 29U, 29L Upstream outer surface water shower nozzle 30 Downstream top surface water shower nozzle 31U, 31L Downstream outer surface water shower nozzle 32 Water outlet 33 Top water distribution 34 Water supply piping for outer peripheral surface 35 Water supply equipment 36 Air nozzle on upstream side 37 Air nozzle on downstream side 38 Air nozzle on outer peripheral surface 39 Air outlet 40 Air outlet 41 Air piping for top surface 42 Air piping for outer peripheral surface 43 Pressurized air supply Equipment 44 Connecting member 45 Elevating cylinder 46 Shower device 47 Partition plate 48 Hole C Can

Claims (5)

In the state where both ends in the axial direction of the cylindrical outer shape of the can are sealed, the axial line of the can is transported in the vertical direction, and is washed with water to remove the contents attached to the transported can. A water drop removing device for removing water adhering to the can,
A conveyor that supports and conveys the bottom surface of the lower end of the can in which the axis is directed in the vertical direction,
An upstream washing unit that sprays water on the top surface and outer peripheral surface of the upper end of the can at the most upstream side in the can conveying direction by the conveyor;
An upstream water drop removing unit that blows pressurized air at least on the top surface of the upper end of the can on the downstream side in the can conveyance direction of the upstream water washing unit, and blows off the liquid present on at least the top surface of the upper end of the can;
A downstream water washing unit that blows water on the top surface and outer peripheral surface of the upper end of the can on the downstream side in the can conveyance direction of the upstream water droplet removing unit;
Downstream water droplet removing unit that blows pressurized air on the top and outer peripheral surfaces of the upper end of the can at the downstream side of the downstream water washing unit in the can conveying direction to blow off the liquid existing on the top and outer peripheral surfaces of the upper end of the can. A canned water droplet removing apparatus.   The upstream water droplet removing unit has a single upstream air nozzle for the pressurized air, and the pressurized air blown from the upstream air nozzle is directed upstream in the can conveying direction. The apparatus for removing canned water droplets according to claim 1, wherein the upstream top air nozzle is arranged so as to be blown obliquely downward.   The downstream water drop removing unit has a single air outlet for compressed air having a single downstream top air nozzle, and the compressed air blown from the downstream top air nozzle is directed upstream in the can conveying direction. The can water droplet removing apparatus according to claim 1, wherein the downstream top air nozzle is disposed so as to be blown obliquely downward.   The downstream water droplet removing unit has an outer peripheral air knife in which an air outlet for pressurized air continues in a preset direction, and is blown out from the outlet of the outer peripheral air knife as the can is conveyed. The can water drop removing device according to any one of claims 1 to 3, wherein the outer peripheral surface air knife is arranged so that pressurized air moves downward from above the outer peripheral surface of the can.   A partition plate in which the upstream water washing unit, the upstream water droplet removing unit, the downstream water washing unit, and the downstream water droplet removing unit are arranged in a series of covers, and a hole having a size through which the transported can passes is formed. Between the upstream water washing section and the upstream water drop removing section, between the upstream water drop removing section and the downstream water washing section, and between the downstream water washing section and the downstream water drop removing section, respectively. The can-washing water droplet removing apparatus according to any one of claims 1 to 4, wherein the water-dropping device is a can.

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