JP2007209516A - Pre-treatment device in automatic lunch box washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent environmental problems from being generated by removing remaining foods by utilizing a gas with a lunch box upright, to prevent a carrying mechanism from being affected by the dropping remaining foods, and in addition, to keep the height of the overall apparatus low. <P>SOLUTION: Following means are adopted in a lunch box moving path consisting of a carrying conveyor for the pre-treating device in an automatic lunch box washing apparatus constituted by providing a remaining food discarding section. Firstly, a holding mechanism for the box body, and an upright state introducing mechanism for the box body are provided on the carrying conveyor. Secondly, a gas jetting mechanism which jets a gas for dropping the remaining foods toward the inside of the box body under the upright state at the remaining food discarding section is provided. Thirdly, the box body is held upright by the standing state introducing mechanism at the remaining food discarding section, and at the same time, after discarding the remaining foods by jetting the gas to the inside of the box body by the gas jetting mechanism, the box body is moved to the washing section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement of a pretreatment device in an automatic lunch box cleaning device, and more specifically, an automatic lunch box characterized by a leftover processing section that removes leftovers before washing a large amount of collected lunch boxes. It is the pre-processing apparatus in a washing | cleaning apparatus.

  Conventionally, in order to clean a large number of lunch boxes with an automatic cleaning device, after removing the lid by manual worker's manual operation or automatic lid removal device, it is possible to invert and drop the leftover food by its own weight. A general method is to apply a large amount of water, drop the leftovers with the force of water, and then send it to an automatic cleaning device.

  However, there are cases where leftovers do not fall just by reversing or spraying water and applying them, and methods for removing leftovers reliably have been studied. Then, as shown in Patent Document 1, after discharging water toward the inside, there has been considered a means for reliably removing leftovers by throwing the lunch box with rotating blades when the lunch box is reversed.

  The treatment of leftovers by water discharge and throwing with rotating blades cannot be said to improve the general method of the conventional example in terms of environmentally unfavorable use of water. The leftovers adhere to the conveyor, which is not preferable in terms of the transport mechanism, and further, the transport mechanism requires a corresponding height for reversal, leading to an increase in the size of the apparatus.

Japanese Patent Laid-Open No. 9-66016

  In order to solve the above problems, the present invention prevents the occurrence of environmental problems by removing residual vegetables using gas in a standing state without inverting the lunch box. It is another object of the present invention to provide a pretreatment device in an automatic lunch box cleaning device that does not affect the height of the device and does not increase the overall height of the device.

1st invention employ | adopts the following means for the pre-processing apparatus in the automatic lunch box washing | cleaning apparatus which provides a leftover processing part in the lunch box transfer path which consists of a conveyance conveyor of a used lunch box.
1stly, the holding mechanism of the box main body of a lunch box and the standing state introduction mechanism of a box main body are provided in a conveyance conveyor.
2ndly, the gas injection mechanism which injects the gas for leftover dropping toward the inner side of the box main body of the standing state in a leftover processing part with the said means is provided.
Thirdly, after holding the box body of the transported lunch box, the left side processing unit holds the box body in the standing state by the standing state introduction mechanism, and injects gas from the gas injection mechanism to the inside of the box body Then, after processing the leftovers, the box body is transferred to the washing section.

  The second invention is the same as that of the first invention, on the downstream side of the leftover processing section, toward the inner side of the standing box body, and the tip part is directed downward from above while contacting the inner side of the standing box body. It is the pre-processing apparatus in the lunch box washing | cleaning apparatus which added the point which provides the sheet | seat peeling mechanism to move.

  In the first invention, since the gas injection mechanism for injecting the gas for dropping the leftovers toward the inside of the box body standing in the leftover processing section is provided, the leftovers are surely and easily used without using water. Can be removed, and water-containing leftovers are not generated, which is hygienic.

  Although it is the effect of 2nd invention, in the lunch box which has mounted | worn the thin sheet | seat as an insole, it is necessary to remove a sheet | seat before washing | cleaning, On the downstream side of a leftover processing part, By providing a sheet peeling mechanism that moves from the top to the bottom while the tip is in contact with the inside of the box body in the standing state toward the inside of the box body, it becomes a pretreatment device that can also remove the insole sheet. .

  Hereinafter, embodiments of the present invention will be described together with examples according to the drawings. FIG. 1 is an explanatory view showing the entire pretreatment device 1 in the lunch box cleaning device, and a lunch box cleaning device 2 is connected to the downstream side of the pretreatment device 1. The lunch box used in this embodiment is a lunch box having a lid 4 on a box body 3 as shown in FIG.

  A lunch box transfer path 7 is formed by the transport conveyor 5 of the used lunch box and the lid conveyor 6 that runs above the transport conveyor 5. A lid removing portion 8 is provided in the upstream portion of the lunch box transfer path 7, and a leftover processing portion 9 is provided in the downstream portion. In addition, an upstream of the lid removal part 8 in the lunch box transfer path 7 is a lunch box insertion part 10.

  An endless chain conveyor is used as the conveyor 5 for the lunch box. A frame-shaped holder 11 that holds the box body 3 of the lunch box is mounted on the conveyor 5 at a predetermined interval. The holder 11 is kept horizontal in the lunch box insertion unit 10 and the lid removing unit 8, but a standing state introduction mechanism 12 is provided so that the box body 3 can be held in a horizontal state and a standing state. It is installed. The holder 11 has a width adjusting mechanism 13 that can hold the box body 3 when the box body 3 is in a standing state, that is, when the holder 11 is oriented vertically as shown in FIG.

  In the lunch box transfer path 7, a lid removing unit 8 is provided downstream of the lunch box input unit 10 and upstream of the leftover processing unit 9. As shown in FIG. 1, the lid removing unit 8 is provided with a lid removing conveyor 6 that runs above the conveyor 5, and the lid suction holding head 14 is covered with the lid removing conveyor 6 as shown in FIG. 2. 4 is attached.

  In the lid removing unit 8, as shown in FIG. 2A, the lid suction holding head 14 descends in the direction of the lid 4 and is sucked by a suction device (not shown) to suck and hold the lid 4, and then FIG. (B) As shown in (C), the cover 4 is lifted while being held, and the cover 4 is separated from the box body 3. Although this raising is performed by the arrangement position of the lid removing conveyor 6, a separate lifting device may be used.

  The lid 4 separated by the lid adsorbing / holding head 14 in the lid removing unit 8 is placed on the lid conveying conveyor 15 from the lid removing conveyor 6, transferred downstream, and transferred from the shooter 16 to the lunch box cleaning device 2. The The process in the pretreatment apparatus 1 related to the lid 4 is as described above.

  A leftover processing section 9 is provided downstream of the lid removing section 8 of the lunch box transfer path 7. In the leftover processing section 9, first, the width adjusting mechanism 13 acts to lower the box body, the holder 11 holds the box body 3, and the box body 3 is prevented from dropping from the holder 11. A spring is built in the width adjusting mechanism 13 for adjusting the clamping force. Subsequently, the holder 11 rotates with the shaft 17 of the standing state introduction mechanism 12 as a fulcrum, and the holder 11 is suspended from the shaft 17, and the box body 3 held in the holder 11 is in the standing state.

  The leftover processing section 9 is provided with a gas injection device 18 that injects gas (air in the embodiment) toward the inside of the box main body 3 in a standing state. As shown by the arrows in FIG. The leftovers 20 that existed in the box body 3 are dropped by their own weight when the box body 3 is in a standing state, and the leftovers 20 that could not be dropped by their own weight are dropped by the air jetted from the gas injection device 18. Removed. At this time, even when the sheet 21 is laid as an insole inside the box body 3 of the lunch box, it may be removed by this air, but it is expected that the removal is not reliable.

  Therefore, a sheet peeling unit 21 is provided downstream of the leftover processing unit 9. Also in the sheet peeling part 21, the box body 3 is held in a standing state by the holder 11. The sheet peeling mechanism in the sheet peeling unit 21 may be any mechanism as long as the leading end 22 moves downward from above while contacting the sheet 25 inside the box body 3 in the standing state. In addition, a resin scraper 24 is used. The scraper 24 can be replaced in various ways.

  Usually, the front end portion 22 of the scraper 24 can peel and remove the sheet 25 in a downward direction. However, for more certainty, a sheet peeling gas injection device 28 is provided, and an injection nozzle of the gas injection device 28 is provided. The air is sprayed between the sheet 25 and the box body 3 in the middle of peeling.

  The cooperation between the sheet peeling gas injection device 28 and the scraper 24 attached to the rotating body 23 will be described. The tip 22 of the scraper 24 rubs the lower end of the box body 3 and the sheet 25 is displaced from the box body 3. Further, the sheet lifted by the protruding portion inside the box body 3 is scratched. Subsequently, high pressure air is jetted from the jet nozzle 26 into the gap between the sheet 25 and the box body 3 to lift the back side of the sheet 25. At this time, the sheet 25 that has been lifted is scraped off by the tip 22 of the scraper 24.

  Of course, the above procedure is ideal, and such a situation occurs simultaneously. Note that the sheet 25 stuck to the scraper 24 is cut and removed by a peeling knife 29. The leftovers 20 and the sheets 25 dropped by the leftover processing unit 9 and the sheet peeling unit 21 as described above are transported and stored in the residual vegetable storage tank 31 by the residual vegetable transporting conveyor 32 installed below.

  The box body 3 that has completed the leftover processing and sheet peeling as described above is turned into a horizontal state inverted by the carry-out unit 30, is fed into the transport conveyor 27 from the shooter 36, is transported downstream, and is washed in the lunch box. It is transferred to the device 2.

. . . . . . Explanatory drawing showing the entire pretreatment device in the lunch box cleaning device . . . . . . It is explanatory drawing of the lid removal operation | movement in a lid removal part, (A) The adsorption | suction holding | maintenance time of a lid | cover is shown, (B) The holding | maintenance raising raise of a lid | cover is shown, (C) The time of completion | finish of raising of a lid | cover is shown. . . . . . . Front explanatory drawing of the leftover processing section . . . . . . Side view of the leftover processing section . . . . . . Enlarged explanatory diagram showing the relationship between the box body and the holder in the leftover processing section . . . . . . Front explanatory view of sheet peeling part . . . . . . Side enlarged view of sheet peeling part

Explanation of symbols

1. . . . . . . . Pretreatment device . . . . . . . 2. Lunch box cleaning device . . . . . . . Box body 4. . . . . . . . Lid 5. . . . . . . . Conveyor 6. . . . . . . . 6. Cap removal conveyor . . . . . . . Lunch box transfer path 8. . . . . . . . 8. Capping part . . . . . . . Leftover processing section . . . . . . 10. Lunch box input part . . . . . . Holder 12. . . . . . . Standing state introduction mechanism 13. . . . . . . Width adjustment mechanism 14. . . . . . . Lid suction holding head 15. . . . . . . Lid conveyor 16, 36. . Shooter 17. . . . . . . Axis 18. . . . . . . Gas injection device 19. . . . . . . Leftovers removal nozzle 20. . . . . . . Leftovers 21. . . . . . . Sheet peeling part 22. . . . . . . Distal end 23. . . . . . . Rotating body 24. . . . . . . Scraper 25. . . . . . . Sheet 26. . . . . . . Injection nozzle 27. . . . . . . Conveyor 28. . . . . . . Sheet peeling gas injection device 29. . . . . . . Knife 30. . . . . . . Unloading part 31. . . . . . . Vegetable storage tank 32. . . . . . . Leftover conveyor

Claims (2)

In the pre-processing device in the automatic lunch box cleaning device provided with the leftover processing section in the lunch box transfer path consisting of the conveyor for the used lunch box,
The transport conveyor is provided with a box body holding mechanism for the lunch box and a box body standing state introduction mechanism,
A gas injection mechanism for injecting a gas for dropping the leftovers toward the inside of the box body in a standing state at the leftover processing unit;
After holding the box body of the transported lunch box, the leftover processing unit holds the box body in the standing state by the standing state introduction mechanism, and also jets gas from the gas injection mechanism to the inside of the box body to leave the leftovers. A pre-processing device in a lunch box cleaning device, wherein the box main body is transferred to a cleaning section after processing.
A sheet peeling mechanism is provided on the downstream side of the leftover processing section so that the tip moves toward the inside of the standing box body while moving from the top to the bottom while contacting the inside of the standing box body. The pretreatment device in the lunch box cleaning device according to claim 1.

Images