JP2005270370A - Heat treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a preferable situation for use from the view-point of sanitary management by separating a pre-heat-treatment environment and a post-heat-treatment environment. <P>SOLUTION: The subject heat treatment system consists of a carriage 2 running with tableware 1 loaded thereon and a treatment device 3, which comprises a heating chamber 31 where the carriage loaded with the tableware 1 runs into or out, and a heating mechanism for heating the tableware 1 and the carriage 2 entering the heating chamber 31. The heating chamber 31 of the treatment device 3 has separately formed entrance 311 and exit 312 which are independently opened/closed, and is formed in such a shape that a plurality of carriages 2 can be juxtaposed in the front/rear direction of the carriage 2 running into/out of the heating chamber. A delivery mechanism 35 for driving/delivering the carriages 2 one by one from the entrance 311 to the exit 312 is mounted inside the heating chamber 31 of the treatment device 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention belongs to a technical field related to a heat treatment system for heat-treating dishes (such as bowls, dishes, spoons, eggplants, trays, etc.) and carts loaded with dishes for drying, disinfection, and the like. .

  Recently, when a large amount of school lunches and tableware are distributed between a central processing facility such as a school lunch center and facilities used by schools, companies, etc., they are loaded on a cart that can run school lunches and dishes from the request of transport efficiency. Things have been done. For this reason, in the central processing facility, it is required to efficiently heat-treat both the cleaned tableware and the cart.

Conventionally, for example, the following heat treatment systems are known.
JP-A-2003-204915 discloses a cart that loads and travels with dishes, a heating chamber that travels when the cart loaded with dishes travels, and the dishes and carts that enter the heating chamber. A heat treatment system comprising a treatment device provided with a heating mechanism for treatment is described. The heating chamber of the processing apparatus is formed in a shape in which a plurality of carriages are arranged in parallel in the front-rear direction of the carriage. Inside the heating chamber of the processing apparatus, there is installed a feed mechanism that can feed and drive the cart one by one in the forward and backward directions.

  In the heat treatment system according to Patent Document 1, a carriage entered from the entrance to the heating chamber of the processing apparatus for the heat treatment is sequentially sent to the back side one by one by the feed mechanism, and the heat treatment is completed. The carts stored in the heating chamber are sequentially fed to the entrance / exit side one by one by the feeding mechanism. That is, the cart loaded with dishes can be efficiently moved in and out of the heating chamber of the processing apparatus in which the heat treatment is performed.

  In the heat treatment system according to Patent Document 1, the pre-heat treatment environment and the post-heat treatment environment are mixed near the entrance / exit of the heating chamber of the treatment apparatus, which is unfavorable in terms of hygiene management. There is a problem.

  The present invention has been made in consideration of such problems, and provides a heat treatment system capable of partitioning a pre-heat treatment environment and a post-heat treatment environment to obtain a preferable use situation in terms of hygiene management. The task is to do.

  In order to solve the above-described problems, the heat treatment system according to the present invention employs means described in each of the claims.

  That is, in claim 1, a cart that travels by loading tableware, a heating chamber in which the cart loaded with tableware travels and enters and exits, a tableware that enters the heating chamber, and a heating mechanism that heats the cart. In the heat treatment system comprising the processing apparatus provided, the heating chamber of the processing apparatus is provided with an inlet and an outlet that are independently opened and closed, and a plurality of carriages are arranged in parallel in the front-rear direction of entering and exiting the carriage. A feed mechanism is formed in the heating chamber of the processing apparatus. The feed mechanism is capable of driving the carriage one by one from the entrance to the exit.

  In this means, the outlet of the heating chamber of the processing apparatus is closed before the heating process, so that it is separated from the environment after the heating process, and the inlet of the heating chamber of the processing apparatus is opened after the heating process (after the start of the heating process). By being closed, it is separated from the environment before heat treatment. And a cart is sent by one way from the entrance (environment before heat processing) of the heating chamber of a processing apparatus to the exit (environment after heat processing).

  According to a second aspect of the present invention, in the heat treatment system according to the first aspect, the feed mechanism of the processing apparatus is disposed above the heating chamber.

  With this means, the bottom of the heating chamber of the processing apparatus is opened.

  According to a third aspect of the present invention, in the heat treatment system according to the second aspect of the present invention, the carriage is provided with a locking portion that is detachably locked to the feed mechanism of the processing apparatus on the top surface of the top board.

  In this means, the engaging portion provided on the top surface of the top board which is not related to the tableware of the cart is linked with the feeding mechanism of the processing apparatus.

  According to a fourth aspect of the present invention, in the heat treatment system according to the third aspect, the feeding mechanism of the processing device reciprocates so that the carriage is fed to the carriage when it moves in the feeding direction to feed and feed the carriage. It is characterized in that a locking projection is provided which tilts when moving in the direction opposite to the direction and passes over the locking portion of the carriage and passes over.

  In this means, the feed mechanism of the processing apparatus is linked with the locking portion of the carriage by a simple reciprocating motion.

  The heat treatment system according to the present invention is separated from the environment after the heat treatment by closing the outlet of the heating chamber of the treatment device before the heat treatment, and after the heat treatment (after the start of the heat treatment), Since the entrance of the heating chamber is closed and the environment before the heat treatment is partitioned, there is an effect that the environment before the heat treatment and the environment after the heat treatment can be partitioned to obtain a preferable use situation in terms of hygiene management. is there.

  The best mode for carrying out a heat treatment system according to the present invention will be described below with reference to the drawings.

  In this embodiment, the heat treatment is performed by the two processing devices 3 arranged in parallel for a total of 12 carts 2 each having 6 dishes 1 loaded thereon.

  As described above, the tableware 1 is composed of a basket, a dish, a spoon, a bowl, a tray, and the like, and is loaded on the cart 2 after being washed and accommodated in the basket. If necessary, medicine cans, food cans, and the like filled with lunch can be included as targets for the heat treatment.

  As shown in detail in FIG. 2, the carriage 2 is a storage chamber in which the loading space for the tableware 1 is surrounded by a bottom plate 21, a top plate 22, a side plate 23, and a door 24. Accordingly, when cleaning and heating the tableware 1 and the cart 2, it is necessary to open the door 24. The door 24 has a double door structure and is positioned on opposite side surfaces of the box shape. The doors 24 are folded and laminated on the outer side of the side plate 23 with the opposite opening and closing shafts in phase. The open state of the door 24 is maintained by passing the fixing bar 25 over a fixing bar mounting groove or the like fixed to the side plate 23. In addition, when feeding and transporting tableware 1 between the central processing facility and the use facility, the door 24 is closed to cut off the school lunch and tableware from various germs, etc. Pollution can be prevented. In addition, a shelf 26 that divides the stacking space for the dishes 1 into a hierarchy is provided inside the storage room.

  The cart 2 has caster-type wheels 27 attached to the four corners of the lower surface of the bottom plate 21, respectively, so that it can be manually pushed in a free direction. Further, the carriage 2 is provided with standing piece-shaped locking portions 28 at two positions on the front and back of the top 22 so that it can be linked to a feed mechanism 35 described later. A connecting shaft 29 for reinforcing connection is suspended between the both locking portions 28.

  The processing device 3 includes a heating chamber 31 in which a cart 2 loaded with tableware 1 travels and enters and exits. As shown in detail in FIG. 3, the heating chamber 31 is provided with an inlet 311 and an outlet 312 separately, and there are six carriages 2 in the direction of the inlet 311 and the outlet 312, which are the front and rear directions of the carriage 2. It is formed in a parallel shape. The entrance 311 and the exit 312 are provided with a liftable shutter 313 that can be opened and closed independently. The shutter 313 opens and closes the inlet 311 or the outlet 312 of the two rows of heating chambers 31 arranged side by side, and has a structure in which a plurality of plate members are pivotably connected to rise and fall. . In the vicinity of the outlet 312 of the heating chamber 31, a cart detection sensor 314 that detects that the cart 2 has entered the outlet 312 of the heating chamber 31 is attached.

  Further, the processing apparatus 3 includes a heating mechanism 32 that heats the tableware 1 and the cart 2 that have entered the heating chamber 31. As shown in detail in FIGS. 3 and 4, the heating mechanism 32 is attached to the side surface of the heating chamber 31 and radiates heat using electric heat, steam heat, or the like, and the upper surface of the heating chamber 31. It comprises a fan 322 for stirring and circulating the heated air inside the heating chamber 31.

  Further, the processing apparatus 3 includes a shutter drive mechanism 33 that drives the shutter 313 of the heating chamber 31 up and down. This shutter drive mechanism 33 is provided with a drive motor 331 installed inside an upper machine chamber 34 that is insulated from the upper part of the heating chamber 31 of the processing apparatus 3, and is rotated by the drive motor 331 installed inside the upper machine chamber 34. The winding and drawing pulley 332 is driven, and a suspension wire (not shown) having a base terminal fixed to the winding and drawing pulley 332 and a tip terminal fixed to the vicinity of the lower end portion of the side surface of the shutter 311.

  Furthermore, the processing apparatus 3 includes a feed mechanism 35 that feeds and drives the cart 2 from the entrance 311 toward the exit 312 one by one in one way. The feed mechanism 35 includes a drive motor 351 installed outside the heating chamber 31, a drive gear 352 rotatably installed on both side surfaces inside the heating chamber 31, a drive motor 351, Between an endless drive chain 353 hung between the drive gears 352, a driven gear 354 installed to be paired with the drive gear 352 with a slight gap, and between the drive gear 352 and the driven gear 354 An endless link chain 355 that is hung, a slide body 356 that is disposed below the link chain 355 and that slides in the direction in which the link chain 355 is disposed, and a connector 357 that couples the slide body 356 to the link chain 355, The rail 358 is arranged below the link chain 355 and guides the slide of the slide body 356. As shown in detail in FIG. 5, the slide body 356 includes a slide plate 356 a that faces the rail 359, a wheel 356 b that is rotatably supported by the slide plate 356 a and travels on the rail 358, and an opposing slide plate 356 a. A support shaft 356c to be connected, a locking protrusion 356d rotatably supported by the support shaft 356c, and a stopper shaft 356e to connect a slide plate 356a facing each other below the support shaft 356c. As shown in detail in FIG. 6, the slide body 356 has an arrangement in which the locking projection 356d can freely rotate in the feed direction and the rotation in the direction opposite to the feed direction is prevented by the stopper shaft 356e. In addition, the locking projection 356d is locked to the locking portion 28 of the carriage 2 when moving in the feeding direction and feeds the carriage 2 and tilts when moving in the direction opposite to the feeding direction. The two engaging portions 28 are passed over.

  The feed mechanism 35 causes a slide composed of a reciprocating motion of the slide body 356 by switching the rotation of the drive motor 351 between forward and reverse. Note that the feed drive of the carriage 2 of the feed mechanism 35 one by one is configured such as control of the number of rotations of the drive motor 351 by an electric circuit and a cam plate, and adjustment of timing of rotation and stop of the drive motor 351 linked with sensors. Executed by.

  Furthermore, the processing apparatus 3 accommodates various electrical control devices in the upper machine chamber 34 described above. A first operation unit 36 for commonly setting the temperature, time, etc. of the heat treatment of the heating chamber 31 connected in parallel with the various control devices is attached in the vicinity of the front surface of the upper machine chamber 34. Further, a second operation unit 37 for operating the shutter drive mechanism 33 of the heating chamber 31 connected to the various control devices and arranged in parallel, and a third operation for individually operating the feed mechanism 35 connected to the various control devices. The parts 38 are respectively attached to the vicinity of the front surface of the upper machine room 34.

  In the heat treatment according to this embodiment, first, the door 24 of the cleaned carriage 2 is held open by the fixed bar 25, and the cleaned tableware 1 is loaded on the shelf 26 of the carriage 2. In addition, the washing | cleaning apparatus provided with the washing | cleaning function which wash | cleans the cart 2 with the tableware 1 loaded can also be utilized. Then, the shutter driving mechanism 33 is operated by the second operation unit 37 of the processing apparatus 3 to open the shutter 313 at the inlet 311 of the heating chamber 31 and close the shutter 313 at the outlet 312. As a result, the environment X before the heat treatment and the environment Y after the heat treatment are surely partitioned by the shutter 313 at the outlet 312 of the heating chamber 31.

  Subsequently, the carriage 2 is manually pushed to enter the room from the entrance 311 opened to the heating chamber 31. At this time, since the shutter 311 of the heating chamber 31 is liftable and does not become an obstacle to entering the room, the carriage 2 can enter the two heating chambers 31 arranged in parallel at the same time. Further, since the open state of the door 24 of the carriage 2 is maintained and the collision of the door 24 inside the narrow heating chamber 31 is avoided, the carriage 2 can be easily run inside the heating chamber 31. Moreover, since there is no obstacle at the bottom of the heating chamber 31, the carriage 2 can enter the heating chamber 31 and travel afterwards, which will be described later, smoothly.

  Subsequently, the feed mechanism 35 is operated by the third operation unit 38 of the processing apparatus 3, and the carriage 2 that has entered the heating chamber 31 is sent to the outlet 311 side by one. At this time, as shown in FIG. 7, the feed mechanism 35 rotates the drive motor 351 in the reverse direction to slide the slide body 356 toward the inlet 311, and the locking projection 356 d of the slide body 356 is moved to the locking portion 28 of the carriage 2. After being positioned closer to the inlet 311 side, the drive motor 351 is rotated forward to slide the slide body 356 to the outlet 312 side. The slide of the slide body 356 toward the outlet 312 brings the locking projection 356d of the slide body 356 and the locking portion 28 of the carriage 2 into engagement, so that the carriage 2 can travel on the outlet 312 side.

  And the above-mentioned operation and operation are repeated for the second and subsequent carriages 2. At this time, while the carriage 2 is being sent by the feeding mechanism 35 of the processing device 3, the worker can manually push the next carriage 2 from another place. Therefore, a large number of carts 2 can be efficiently entered into the heating chamber 31 of the processing device 3. In addition, after entering the sixth cart 2, even if an attempt is made to operate the feed mechanism 35 by the third operation unit 38 of the processing device 3, the feed mechanism 35 is driven by the linkage with the cart detection sensor 314 described above. Is blocked. Therefore, it is not necessary to look through the heating chamber 31 of the processing apparatus 3 to see how many carts 2 have already been entered.

  As a result, six carriages 2 are juxtaposed inside the heating chamber 31 of the processing apparatus 3. When the carts 2 are arranged in parallel, it is not necessary for the worker to manually push the cart 2 to the outlet 312 side inside the narrow heating chamber 31, so that the work of entering the cart 2 is facilitated and the safety of the worker is ensured. The

  Thereafter, the shutter driving mechanism 33 is operated by the second operation unit 37 of the processing apparatus 3 to close the shutter 313 at the inlet 311 of the heating chamber 31, and the temperature, time, etc. are set by operating the first operation unit 36. Heat treatment.

  In this heat treatment, since the open state of the door 24 of the carriage 2 is folded and laminated on the side plate 23 and does not protrude outward, the floor area of the heating chamber 31 of the treatment device 3 is reduced to reduce the floor space of the treatment device 3. The installation area can be reduced, and the thermal efficiency is improved.

  When the heat treatment (storage) is completed and the meal is delivered, the shutter drive mechanism 33 is operated by the second operation unit 37 of the processing device 3 to open the shutter 313 at the outlet 312 of the heating chamber 31. At this time, the shutter 313 at the entrance 311 of the heating chamber 31 is kept closed. As a result, the environment X before the heat treatment and the environment Y after the heat treatment are surely partitioned by the shutter 313 at the entrance 311 of the heating chamber 31.

  Subsequently, as shown in FIG. 8A, the carriage 2 that is located closest to the outlet 312 is caused to travel by hand to leave the heating chamber 31. Then, as shown in FIGS. 8B and 8C, the feed mechanism 35 is operated by the third operation unit 38 of the processing apparatus 3, and the carriage 2 that has entered the heating chamber 31 is made into one outlet 311. The carriage 2 that is positioned closest to the outlet 312 is guided by hand to leave the heating chamber 31. The operation of the slide body 356 and the like of the feeding mechanism 35 is performed as described above.

  As described above, in addition to the illustrated embodiment, the heating chamber 31 of the processing apparatus 3 may be configured such that seven or more carriages 2 are arranged in parallel at the front and rear.

  Further, it is possible to arrange three or more heating chambers 31 of the processing apparatus 3 side by side.

[BRIEF DESCRIPTION OF THE DRAWINGS] It is a perspective view of the best form for implementing the heat processing system based on this invention. It is the front view to which the principal part of FIG. 1 was expanded. It is a longitudinal cross-sectional view during the heat processing of FIG. FIG. 4 is an enlarged side view of FIG. 3. It is the perspective view to which the principal part of FIG. 1 was expanded. FIG. 6 is a side view of the operation of FIG. 5, and operations in the reverse direction are shown in (A) and (B). FIG. 2 is a simplified diagram illustrating a work example before the heat treatment in FIG. 1, and the work order is shown in the order of (A) to (C). FIG. 2 is a simplified diagram illustrating a work example after the heat treatment in FIG. 1, and the work order is shown in the order of (A) to (C).

Explanation of symbols

1 Tableware 2 Carriage 22 Top panel (containment room)
23 Side plate (container)
24 doors (containment room)
28 Locking section 3 Processing device 31 Heating chamber 311 Inlet 312 Exit 313 Shutter 32 Heating mechanism 35 Feeding mechanism 356 Slide body 356d Locking projection X Environment before heat treatment Y Environment after heat treatment

Claims (4)

  It comprises a cart that is loaded with tableware and a processing device that includes a heating chamber in which the cart loaded with tableware runs and enters and exits, tableware that enters the heating chamber, and a heating mechanism that heats the cart. In the heat treatment system, the heating chamber of the treatment apparatus is formed in a shape in which a plurality of carriages are arranged in parallel in the front-rear direction of entering and exiting the carriage, with an inlet and an outlet that are independently opened and closed provided separately. A heat treatment system, characterized in that a feed mechanism capable of driving the carriage one by one from the entrance to the exit is installed inside the chamber.   2. The heat treatment system according to claim 1, wherein the feed mechanism of the treatment device is disposed above the heating chamber.   3. The heat treatment system according to claim 2, wherein the carriage is provided with an engaging portion that is detachably engaged with a feed mechanism of the processing apparatus on an upper surface of the top board.   4. The heat treatment system according to claim 3, wherein the feed mechanism of the processing device is reciprocated so as to be locked to the locking portion of the carriage when moving in the feeding direction, and the carriage is fed to drive in a direction opposite to the feeding direction. A heat treatment system characterized in that a locking projection is provided that tilts when moving and passes over the locking portion of the carriage.

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