JP3990351B2 - Roll food packaging equipment - Google Patents

Description

The present invention, for example a circumferential surface and the end surface of the roll-shaped food formed into a roll of rice, it relates to that equipment be wrapped in the packaging sheet.

  There has been proposed an apparatus and a method for automatically packaging a roll-shaped cooked rice molded body with a packaging sheet in which a covering film is provided on opposite side edges of a rectangular sheet body (Patent Document 1). This is because the covering film is erected and placed on a tensioned conveyor, and the roll-shaped cooked rice molded product is placed on the packaging sheet on the conveyor belt in a direction in which the axis of the molded product intersects the transition direction of the conveyor belt. The cover film is folded inward by a pressing member that can be placed and rotated, and a part of the upstream or downstream side in the transfer direction of the conveyor belt is lifted, and then the roll is rolled by a part of the lifted conveyor belt. The shaped cooked rice molded product is covered, and the periphery of the rolled cooked cooked rice product is covered with the packaging sheet.

JP-A-8-289748

The above packaging apparatus method is to slacken a tensioned conveyor belt, put it on a roll-shaped cooked rice molded body, and wrap a wrapped sheet between the conveyor belt and the roll-shaped cooked rice molded body around the roll-shaped cooked rice molded body, There is a problem that the packaging efficiency is poor because the apparatus becomes large and the next packaging is not completed until one packaging is completed.
The present invention supplies a packaging sheet and a roll-shaped food product such as a roll-shaped cooked rice product to the transport device in sequence, and wraps the roll-shaped food product during the circulation of the transport device, thereby efficiently rolling the roll-shaped food product. The method and apparatus that can be packaged are clarified.

A wrapping sheet (7) in which a covering film (73) (73) covering both ends of the roll-shaped food is provided on opposite sides of the rectangular sheet (71) that wraps around the peripheral surface of the roll-shaped food is rolled. A packaging sheet feeding device (3) for feeding under the food feeding station S5;
Passing intermittently through the lower part of the roll food supply station, the receiving part (5) is provided with receiving parts (5) at equal intervals in the turning direction, and falls into the receiving part (5) falling on the packaging sheet (7). A conveying device (40) for projecting upward from the receiving portion (5) and conveying it to the next process, both ends of the sheet body (71) and the outer end portions of the covering films (73) (73);
Corresponding to the stop position of the receiving portion (5) closer to the downstream side than just below the packaging sheet supply position, the opposite positions are provided with the conveying device (40) interposed therebetween, and they approach each other perpendicular to the conveying direction of the conveying device (40). A covering film folding device (9) comprising a pair of folding members (91) (91) for folding the upper end of the covering film (73) (73) inward and covering the peripheral surface of the roll-shaped food;
The end (71a) (71b) of the sheet body (71) projecting upward from the receiving part (5) in the middle of the transition provided on the downstream side of the covering film folding device (9) obstructs the transition. Baffle member (45) that folds part (71a) (71b) in the anti-transition direction;
Rollers (61), (61), (62), and (63) are arranged on the downstream side of the baffle member (45) so as to be relatively close to and away from each other across the transition path of the roll food, and the rollers ( 61) (61) (62) (63) sandwich the roll food together with the packaging sheet (7) and forcibly rotate it, so that the ends (71a) (71b) of the sheet body (71) are placed around the roll food. Sheet winding device (6) along the surface;
A fastening device (100) for fastening the winding end of the sheet body (71) by thermal welding, labeling or the like ,
The transport device (40) includes endless strips (41) and (41) that are kept in parallel and that divide into left and right synchronously, and receiving portions (5) arranged on the strips (41) and (41) at equal intervals. Each receiving portion (5) is arranged on the adjacent strips (41) and (41) with the same phase and oriented in a direction perpendicular to the circumferential direction of the strips (41) and (41). A pair of left and right cradles (51) and (51) that support both ends of the roll-shaped food, and covering films disposed on the outer sides of the cradles (51) and (51) on both belt bodies (41) and (41), respectively The baffle members (56) and (56), each cradle (51) is a pair of substantially L-shaped receiving members (52 ) (52a), the downstream receiving member (52) has a shape that can surround the front peripheral surface from the bottom of the roll-shaped food, and is provided so as to be inclined in the transition direction of the receiving portion (5). The receiving member (52a) has a shape that can surround the rear peripheral surface from the bottom of the rolled food. The receiving member (5) is provided so as to be tiltable in the direction opposite to the transition direction, and the receiving members (52) and (52a) are urged by the urging means so that the lower ends are opposed to each other and the upper ends are directed upward. The covering film baffle members (56) and (56) are both receiving members (52) and (52a) from the outer edge side of the band (41) with respect to the opposing receiving members (52) and (52a). The receiving members of the two cradles (51) corresponding to the positions where the roll-shaped food is dropped on the cradle (51) (51) while being placed on the packaging sheet (7) (52) (52a) is provided with a tilting means (43) forcibly tilting against the biasing means, and is provided in the rollers (61) (61) (62) (63) of the sheet winding device (6). The at least two rollers (61) (61) are arranged so as to be movable up and down between the adjacent belt bodies (41) (41) .

  The 1st folding process, the 2nd folding process, the 3rd folding process, and the 4th folding process are performed at the same time while the receiving part (5) is stopped or on the way to move to the downstream side. For this reason, since one packaging is completed for every one pitch movement of the strips (41) and (41) having the receiving portions (5) at equal intervals regardless of the number of work steps, the packaging can be efficiently performed. .

In the roll-shaped food embodiment, the roll-shaped food to be packaged is a roll-shaped cooked rice product (8) obtained by forming cooked rice into a roll. The rolled cooked rice (8) has a diameter of about 35 mm and a length of about 100 mm. The roll-shaped cooked rice product (8) may be contained in the form or in a state in which sprinkled food such as ingredients or sesame is adhered to the surface.

Packaging sheet The roll-shaped cooked rice product (8) is packaged by the packaging sheet (7) shown in FIGS. 11 and 12 so as to cover the circumferential surface and both end surfaces.
The packaging sheet (7) is formed by sandwiching a sheet-like food (76) such as sheet-like seaweed between the inner sheet body (71) and the outer sheet body (72) and thermally welding the outer periphery of the sheet body. ing.
The inner sheet body (71) is formed by superposing two strip-shaped film pieces (70), (70) with their inner ends 10 to 15 mm wide and having a length of about 170 mm and a width of about 130 mm. Presents.
The outer sheet body (72) is formed of a single film and has the same size as the inner sheet body (71).
The outer sheet body (72) is provided with a separable portion (74) for dividing the outer sheet body into two in the width direction at the center in the width direction. The severable portion (74) of the embodiment is a well-known cut tape (75) that can bond the strip to the outer sheet body (72) and pull the end of the strip to bisect the outer sheet body (72). However, as long as the outer sheet body (72) can be divided into two in the width direction, the configuration of the separable portion (74) is not limited.
The inner sheet body (71) is formed by extending rectangular covering films (73) and (73) on both side edges in the longitudinal direction, that is, on the outer edges of the film pieces (70) and (70).
The sheet-like food (76) has a length of about 150 mm and a width of 100 mm, which is the same as the length of the roll-shaped cooked rice (8).
The lengths of the sheet bodies (71) and (72) are about 1.2 to 1.5 rounds of the roll-shaped cooked rice molded body (8), and the width is the length of the roll-shaped cooked rice molded body (8). The length is about 20 to 30 mm.
The projection length of the cover film (73) is about 1.5 times the diameter of the roll-shaped cooked rice product (8), and the width of the cover film (73) is the diameter of the roll-shaped cooked rice product (8). It is about 1.5 to 2 times.
The packaging sheet (7) has a substantially cross shape as a whole, but in the case of the example, the covering film (73) is slightly shifted to one end side from the center of the length of the inner sheet body (71). .
A black mark (79) that reacts to a photoelectric detector (66) described later is provided on both ends of the outer sheet (72) on the side far from the cover film (73).

Schematic diagram of packaging procedure FIG. 1 shows a procedure for packaging a roll-shaped cooked rice molded product (8) with the packaging sheet (7).
As shown in FIG. 1A to FIG. 1B, the roll-shaped cooked rice (8) is dropped together with the packaging sheet (7) into the cradle (51) waiting in an inclined state. As shown in FIG. 1 (b), the cradle (51) is closed and both end portions of the sheet bodies (71) and (72) and the covering films (73) and (73) stand up.
As shown in FIG. 1C, the upper portions of the standing covering films (73) and (73) are folded inward to cover the roll-shaped cooked rice (8).
As shown in FIG. 1D, during the transition of the cradle (51), the end portions (71a) and (71b) of the sheet bodies (71) and (72) rising upward from the cradle (51) are blocked by the baffle members (45). The end portions (71a) and (71b) are folded rearward against each other. As shown in FIG. 1E, a roll-shaped cooked rice product (8) on a cradle (51) that has passed through a baffle member (45) is sandwiched between a plurality of rollers (61), (61), (62), and (63). Rotate the roll-shaped cooked rice product (8) together with the packaging sheet (7) in the counterclockwise direction to rotate the ends (71a) (71b) of the packaging sheet (7) into the roll-shaped cooked rice product (8). Wrap along the circumference of the.
The winding ends of the sheet bodies (71) and (72) are fixed by heat welding, labeling or the like.

Roll rice cooker (1)
FIG. 2 is a front view of a state in which a roll-shaped cooked rice forming device (1) for forming cooked rice into a roll shape is connected to the upstream side of the packaging device (4), and FIG. 3 is a plan view thereof. FIG. 6 is a perspective view of the roll rice cooker (1).
The roll-shaped cooked rice forming apparatus (1) has the same configuration as a known cooked rice forming apparatus for automatically forming the bowl-shaped rice of the inner lunch box of the curtain.
A turntable (21) is rotatably arranged on the base (10), and the turntable has 6 to 12 rectangular forming holes (22) corresponding to the roll-shaped cooked rice molded body (8) on the outer periphery. ) At regular intervals. Each forming hole (22) is orthogonal to the radial line of the turntable (21) passing through the center of the hole length.
Further, as shown in FIG. 7, shallow grooves (23) and (23) are formed on the wall surface in the longitudinal direction of the forming hole (22) to prevent the rice lump from falling naturally.
In the turntable (21), a rice supply station S1, a presser station S2, a pre-forming station S3, a finish forming station S4, and a formed body supply station S5 are set in order in the rotation direction.
A bottom plate (20) slidably contacting the bottom surface of the turntable (21) is fixed on the base (10).
The bottom plate (20) opens the bottom of the molding hole (22) of the turntable (21) in the preliminary molding station S3, the finish molding station S4 and the molded product supply station S5.

Corresponding to the cooked rice supply station S1, a cooked rice feed device (11) is provided, and a fixed amount of cooked rice is fed each time the forming hole (22) is positioned in the station S1.
The presser mold (24) is directly above the presser station S2, the preforming molds (25) and (28) are directly above and below the preforming station S3, and the finish mold is directly above and below the finish molding station S4. The mold (26) (the lower mold is not shown) is provided so that the drop mold (27) can be moved up and down just above the molded body supply station S5.
As shown in FIG. 7, the pressing surfaces of the molds (25) and (28) are formed on the arc surface (29) corresponding to the arc of the peripheral surface of the roll-shaped cooked rice molded body (8). The pressing surface of the finish mold (26) is also formed in an arc surface.

The cooked rice supplied to the forming hole (22) of the turntable (21) at the cooked rice supply station S1 is held down by the presser mold (24) at the presser station S2. At the pre-forming station S3, the cooked rice is preliminarily pressed by the pre-molding dies (25) (28) from above and below, and at the finishing molding station S4, the roll-shaped rice is squeezed by the sandwiching pressure of the top and bottom finishing forming dies (26). It becomes a molded body (8). The roll-shaped cooked rice molded product (8) is pushed downward by the dropping die (27) at the molded product supply station S5.
The operations at the stations S1 to S5 are performed simultaneously.
It is sufficient to load the tools as needed in the empty station between the presser station S2 and the preforming station S3.

Packaging equipment (4)
The packaging device (4) was pushed down onto the packaging sheet (7) from the packaging sheet supply device (3) for supplying the packaging sheet (7) to a position directly below the molded product supply station S5. A transport device (40) for receiving and transporting the roll-shaped cooked rice product (8) together with the sheet (7), and a covering film (7) on the roll-shaped cooked rice product (8) being transported ( 73) A cover film folding device (9) for folding (73) and an end (71a) (71b) of the sheet body (71) (72) of the packaging sheet (7) in the direction opposite to the conveying direction A member (45), a sheet winding device (6) for further winding the ends (71a) (71b) around the peripheral surface of the roll-shaped cooked rice molded body (8), and a winding end of the sheet body (71) And a fastening device (100) for fastening.

Packaging sheet feeder (3)
As shown in FIG. 6, the packaging sheet supply device (3) passes through a stocker (31) for stacking and storing the packaging sheets (7), a lower part of the stocker, and a lower part of the rice ball molding supply station S5. This is a known configuration constituted by a plurality of intermittently circulating belts (32) stretched in an endless manner, and a suction rod (33) arranged to be movable up and down below the stocker (31).
The lowermost packaging sheet in the stocker (31) is pulled by the suction force applied to the plurality of holes on the upper surface of the suction rod (33) as the suction rod (33) rises as it passes between the circulating belts (32) and (32). (7) is sucked, and the packaging sheet (7) is pulled out of the stocker (31) by the lowering of the suction rod (33) and placed on the circulating belt (32), and the suction to the packaging sheet (7) is released. .
In accordance with the timing at which the packaging sheet (7) is placed on the orbiting belt (32), the belt orbits and conveys the packaging sheet (7) to a position just below the compact supply station S5.
The packaging sheet (7) has the outer sheet body (72) on the lower side at the position directly below the station S5, and the end (71b) far from the covering film (73) on the downstream side of the conveying device (40). The roll-shaped cooked rice product (8) pushed out from the molding hole (22) on the molded product supply station S5 is positioned between the covering films (73), (73) of the packaging sheet (7), The axis of the molded body (8) is supplied so as to correspond to the width center of the covering film (73).
The stocker (31) is provided with known means (not shown) for preventing the packaging sheet other than the lowermost packaging sheet adsorbed by the suction rod (43) from dropping.

Conveying device (40)
The transporting device (40) is divided into left and right sides that are parallel to each other, and the two endless strips (41) and (41) that circulate synchronously and the receivers that are arranged at equal intervals on the strips (41) and (41). Part (5).
As shown in FIG. 5, the belt bodies (41) and (41) are configured by connecting a block (42) that is long in a direction orthogonal to the conveying direction so as to be freely bent within the circumferential surface of the belt bodies (41) and (41). The
Each receiving part (5) is a roll-shaped food with a posture that is arranged on the adjacent band (41) (41) in phase and is oriented in a direction perpendicular to the circumferential direction of the band (41) (41). A pair of left and right cradles (51) and (51) to be supported, and a baffle member (56) for covering film disposed on the outer sides of the cradles (51) and (51) on both belt bodies (41) and (41), respectively ( 56).
Each cradle (51) is composed of a pair of substantially L-shaped receiving members (52) and (52a) facing each other along the circumferential direction of the belt (41). The receiving member (52) on the downstream side has a shape that can surround the front peripheral surface from the bottom of the roll-shaped food, and is provided so as to be able to tilt by rotating in the transition direction of the receiving portion (5).
The upstream receiving member (52a) has a shape that can surround the rear peripheral surface from the bottom of the roll-shaped food, and is provided so as to be tilted by rotating in the opposite direction of the receiving portion (5).
The inner corner portions of the receiving members (52) and (52a) are formed in an arc surface having a slightly larger radius of curvature than the peripheral surface of the roll-shaped cooked rice (8).
The both receiving members (52) and (52a) are urged by urging means (not shown) such as a spring so that the lower ends are opposed to each other and the upper ends are upward.
Each covering film baffle member (56) (56) is disposed on the outer edge side of the belt (41) close to the receiving member (52) (52a) facing each other, the receiving member (52) (52a) ) Across the board. The distance between the covering film baffle members (56) and (56) facing each other is slightly larger than the length of the roll-shaped cooked rice (8).
The width of the covering film baffle members (56) (56) in the conveying direction is about the diameter of the roll-shaped cooked rice (8), and both ends are bent obliquely outward. The height of the covering film baffle members (56) and (56) is lower than the upper end of the roll-shaped cooked rice molded body (8) on the receiving members (52) and (52a). ) Axis.
As shown in FIG. 6, as described above, the position immediately below the compact supply station S5 is the supply position of the packaging sheet (7), and the position immediately below the supply position is the first folding station S6. Each receiving part (5) stops at the first folding station S6.
In the first folding station S6, as shown in FIG. 4, a tilting means (43) for the cradle (51) is provided between the belt bodies (41) and (41) of the transfer device (40).
The tilting means (43) pushes up the four pins (44) with respect to the four receiving members (52) and (52a), and the downstream receiving member (52) is located upstream of the receiving portion (5) on the transition side. The receiving member (52a) on the side is inclined to the opposite side and opens widely between the upper ends of the receiving table (51). The pins (44) are moved up and down all at once by lifting means (not shown) such as a cylinder.

Cover film folding device (9)
It is the second folding station S7 that stops the receiving unit (5) next to the first folding station S6 due to the intermittent circulation of the transfer device (40), and as shown in FIGS. 6 and 8, the second folding station S7. A cover film folding device (9) is provided in the case.
The covering film folding device (9) includes a pair of folding members (91) (91) and a folding member (91) (91, 91) and a convolution drive device (not shown) such as a cylinder for approaching and separating.
The folding members (91) (91) are formed in the shape of an inverted bowl having a slightly larger radius of curvature than the circumferential arc of the roll-shaped cooked rice product (8). It exists in the height position which covers on a roll-shaped cooked rice body (8).
The folding members (91) (91) have a margin that does not interfere with the covering film baffle members (56) (56). The two folding members (91) and (91) are slightly different in height so that the tips of the two folding members (91) and (91) are slightly separated from each other or pass up and down.

Disturbing member (45)
The third folding station S8 starts from a position immediately beyond the second folding station S7, and the area immediately before the next fourth folding station S9 is the area of the third folding station S8. The 3rd folding station S8 of an Example occupies the area | region more than 1 pitch by making between the adjacent receiving parts (5) (5) into 1 pitch. A plate-like baffle member (45) is provided over the entire length of this region.
The baffle member (45) is disposed along the transition path of the receiving portion (5) at a position slightly higher than the upper end height of the roll-shaped cooked rice molded body (8) on the receiving portion (5).

Sheet winding device (6)
As shown in FIGS. 9 and 10, a sheet winding device (6) is provided in the fourth folding station S9.
The sheet winding device (6) includes three or more rollers for forcibly rotating the roll-shaped cooked rice product (8) on the receiving portion (5) stopped at the fourth folding station S9 from above and below, In the embodiment, it is composed of four rollers (62) (63) (61) (61).
The four rollers are provided with a positioning roller (62) and a presser roller (63 ), Two lifting rollers (61), (61) arranged at a position slightly lower than the transition path of the roll-shaped cooked rice (8).
A motor (65) is connected to the positioning roller (62) and rotates clockwise at a fixed position.
The presser roller (63) approaches the localization roller (62) and is rotatably supported on the upstream side of the localization roller (62), and is urged downward by a spring (64).
The elevating rollers (61) and (61) are linked to a rotary drive device and an elevating drive device such as a cylinder (both not shown), and between the belts (41) and (41) of the transport device (40). Ascending, the roll-shaped cooked rice molded body (8) on the receiving part (5) is lifted and pressed against the positioning roller (62) and the presser roller (63), and rotated clockwise.
The photoelectric detector (66) is disposed at a fixed position in proximity to the end of the presser roller (63).
The photoelectric detector (66) detects the black mark (79) at the end of the packaging sheet (7) and stops the rotation of the rollers (61) (61) (62).

Fastening device (100)
In the fourth folding station S9, a fastening device (100) for stopping the winding end of the packaging sheet (7) wound around the roll-shaped cooked rice (8) is provided.
The fastening device (100) of the embodiment is for heat-welding and stopping the winding end of the packaging sheet (7), and can be moved up and down substantially between the positioning roller (62) and the presser roller (63). Two rod-shaped pressing members (101) and (101) are provided. The pressing members (101) and (101) move up and down outside the positioning roller (62) and the pressing roller (63) and do not interfere with both the rollers (62) and (63).
The pressing members (101) and (101) are heated by a built-in heater and press the winding end of the packaging sheet (7) to thermally weld the end side.

Explanation of the operation of the packaging device In accordance with the timing when the packaging sheet (7) is supplied directly below the molded product supply station S5 of the roll-shaped cooked rice molding device (1) by the packaging sheet supply device (3), the turntable (21) The roll-shaped cooked rice product (8) is pushed down onto the packaging sheet (7) (FIG. 1a, b).
At this time, as shown in FIG. 4, in the first folding station S6, which is located directly below the molded product supply station S5, the front and rear receiving members (52) and (52a) are tilted by the tilting means (43) so that the gap between the upper ends is widened. The receiving part (5) is waiting in the state where
The roll-shaped cooked rice product (8) pushed down on the packaging sheet (7) passes through the belts (32) and (32) of the packaging sheet supply device (3) together with the packaging sheet (7). Drops onto part (5). The left and right cradles (51) and (51) of the receiving part (5) support both ends of the roll-shaped cooked rice molded body (8).
The pin (44) (44) of the tilting means (43) descends in accordance with the timing at which the roll-shaped cooked rice (8) is supported by the cradle (51) (51), and the both cradle (51) The front and rear receiving members (52) and (52a) close to the respective traveling directions (FIG. 1, b ′).
By the above operation, as shown on the left side of FIG. 1 'and FIG. 8a, both longitudinal sides of the sheet bodies (71) and (72) of the packaging sheet (7) are guided by the receiving members (52) and (52a). The covering films (73) and (73) stand up while being guided by the covering film baffle members (56) and (56), and project upward from the receiving members (52) and (52a). By the above operation, the sheet bodies (71) and (72) are covered with approximately half of the peripheral surface of the roll-shaped cooked rice molded body (8), and the covering films (73) and (73) are formed of the roll-shaped cooked rice molded body (8). Cover both end faces.
As described above, since the packaging sheet (7) is supplied directly under the molding supply station S5 so as to be longer on the downstream side than the covering film baffle members (56, 56), the downstream end (71b ) Has a longer protruding length from the receiving members (52) and (52a) than the upstream end (71a).

In the case of the embodiment, as shown on the right side of FIGS. 1B and 8A, when the roll-shaped cooked rice (8) falls together with the packaging sheet (7) to the receiving part (5), as described above. The receiving members (52) and (52a) of the part (5) are largely open. For this reason, the sheet | seat bodies (71) and (72) of a packaging sheet (7) will be in the state opened in reverse C shape. Accordingly, the covering films (73) and (73) of the packaging sheet (7) are guided by the covering film baffle member (56) so as to enter between the opposite ends of the inverted C-shaped sheet bodies (71) and (72). Turn up. Further, the width of the cover film (73) is larger than the width of the cover film baffle member (56), and the sheet body (71) is longer than the length between the cover film baffle members (56) (56). ) (72) is small in width, both side edges of the cover film (73) bend corresponding to the outwardly inclined portions of the cover film baffle members (56) (56). For this reason, even if the covering film (73) is thin and does not have a waist, it is difficult to fall down, and the standing state can be maintained.
The sheet bodies (71) and (72) are formed of a thin film, but the outer peripheral portion is welded in two layers, and since the sheet-like food is sandwiched between them, the sheet bodies (71) and (72) are unlikely to fall down and can be kept standing.
As shown in FIG. 8b, if the roll-shaped cooked rice molded product (8) falls together with the packaging sheet (7) into the receiving part (5) with the receiving members (52) and (52a) closed, the sheet body At both ends of (71), the sheet body (71), the side edge in the longitudinal direction, and the covering film (73) interfere with each other, and the covering film (73) is wrinkled or falls outward, It may interfere with packaging or may not be neatly packaged.

As shown on the left side of FIG. 8a, when the receiving portion (5) stops at the second folding station S7 from the first folding station S6, the folding members (91) (91) of the covering film folding device (9) are moved. Close to each other, the upper end portions of the standing covering films (73) and (73) are tilted inward to cover the peripheral surface of the roll-shaped cooked rice molding (8) (FIG. 1C).
When the folding members (91) (91) return to the standby position, the receiving portion (5) passes through the area of the second folding station S7 on the downstream side, but at this time, it protrudes upward from the receiving portion (5). Both end portions of the sheet body (71) are in contact with the baffle member (45) and folded in the opposite direction (FIG. 1D). The downstream end (71b) of the sheet body (71) covers the upper peripheral surface of the roll-shaped cooked rice molded body (8), and further covers the upstream end (71a) and further upstream than the end (71a). Extend to.
As shown in FIGS. 1 and 10, when the receiving portion (5) passes through the end of the baffle member (45) and stops at the fourth folding station S9, the elevating rollers (61) and (61) rise and the packaging sheet Along with (7), the rolled rice cooked product (8) is slightly lifted and pressed against the positioning roller (62) and the pressing roller (63), and the lifting rollers (61) (61) and the positioning roller (62) are rotated clockwise. Rotating the roll-shaped cooked rice molded product (8) together with the packaging sheet (7) in the counterclockwise direction.
As a result, the end portions (71a) and (71b) of the packaging sheet (7) are folded along the peripheral surface of the roll-shaped cooked rice molded product (8). When the roll-shaped rice cooked product (8) is pressed against the positioning roller (62) and the presser roller (63) by being pushed up by the lift rollers (61) (61), the presser roller (63) is biased downward by a spring. Therefore, even if the outer diameter of the roll-shaped cooked rice product (8) varies, the presser roller (63) absorbs and it is impossible to rotate the roll-shaped cooked rice product (8). Absent.
Further, since the roll-shaped cooked rice product (8) is slightly lifted from the receiving members (52) and (52a) of the receiving portion (5) and rotates, there is no friction with the receiving members (52) and (52a) and smooth Rotate.
If the photoelectric detector (66) detects that the upper end (71b) of the packaging sheet (7) is facing straight up, the rotation of the rollers (61) (61) (62) will stop and stop. The pressing members (101) and (101) of the apparatus (100) are lowered to weld and stop the winding end (71b) of the packaging sheet (7).
When the winding end (71b) of the packaging sheet (7) has been welded, the pressing members (101) (101) are raised, and the elevating rollers (61) (61) are returned to the standby position.
The roll-shaped cooked rice product (8) after packaging is placed on the receiving part (5) and conveyed downstream, and is taken out from the receiving part (5) at an appropriate place.
The above operation is repeated for every one pitch intermittent movement of the transport device (40).

As described above, the packaging sheet supply process for supplying the packaging sheet (7) to a fixed position,
The roll-shaped rice cooked product (8) is supplied from above the supplied packaging sheet (7) to the supplied packaging sheet (7), and the packaging sheet (7) is placed on the upper opening cradle (51) waiting below the packaging sheet. And a first folding step of folding the both ends of the sheet body (71) and the outer ends of the covering films (73) (73) so as to protrude upward from the cradle (51) by dropping the roll-shaped food.
The cradle (51) is intermittently moved by the transfer device (40) having the cradle (51), and is disposed opposite to the rest position of the cradle (51) at the stop position of the cradle (51). A second folding step in which the upper ends of the covering films (73) and (73) are folded inward by moving the pair of pushing members (91) and (91) forward to cover the peripheral surface of the packaging sheet (7);
During the transition of the cradle (51), the end portions (71a) and (71b) of the sheet body (71) protruding upward from the cradle (51) are applied to the baffle member (45) to receive the end portion. A third folding step of folding to the opposite side of the transition direction of (51),
Together with the packaging sheet (7) by the four rollers (61) (61) (62) (63) waiting on the downstream side of the baffle member (45) across the transition path of the roll-shaped cooked rice (8) A fourth folding step in which the roll-shaped cooked rice (8) is sandwiched and rotated so that the ends (71a) and (71b) of the sheet (71) are folded along the peripheral surface of the roll-shaped cooked rice (8). ,
The fixing process of fixing the winding end (71b) of the sheet body (71) by heat welding is simultaneously performed while the conveying device (40) conveys the roll-shaped cooked rice article (8) by one pitch. Done in For this reason, regardless of the number of work steps, one packaging is completed for every one pitch movement of the transport device (40), and the packaging can be efficiently performed.

  To eat the packaged roll-shaped cooked rice (8), remove the cut tape (75) of the outer sheet (72) and divide the outer sheet (72) into two parts. When the sheet ends at both ends are picked and pulled outward, the packaging can be unwound while only the sheet-like food (76) is covered with the roll-shaped cooked rice (8).

In practicing the present invention, the packaging sheet (7) may be a single sheet, that is, a single sheet in which a film is projected on both opposite edges of a rectangular sheet body. In this case, it is necessary to select a thickness and material so that both ends of the sheet body and the covering film stand up when the roll-shaped cooked rice body (8) is accommodated in the receiving part (6) together with the packaging sheet. There is.
Further, if the packaging sheet has the above-described material and thickness, the receiving portion may or may not be inclined as in the above-described embodiment.
Furthermore, the object of packaging is not limited to the roll-shaped cooked rice product (8), but may be any roll-shaped food that can retain the original shape in the packaging process.

  The method of stopping the winding end of the packaging sheet (7) is not limited to welding, and a method of sticking the label across the winding end between the label and the sheet can be adopted. In this case, a known automatic labeling machine is used. Can do.

  The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

It is a schematic explanatory drawing of a packaging procedure. It is a front view of the state which connected the roll-shaped cooked rice forming apparatus to the packaging apparatus. It is a top view same as the above. It is a front view of the state which a receiving part opened and was waiting in 1st folding station S6 of a conveying apparatus. It is a principal part slope view of a conveying apparatus. It is a slope view of the downstream side of a roll-shaped cooked rice forming apparatus and a packaging apparatus. It is sectional drawing of preforming station S3. Fig. a is a perspective view showing changes in the operation of the receiving portion at the first folding station S6 and the second folding station S7, and Fig. b is a view in which the packaging sheet and the roll-shaped cooked rice molded product fall into the closed receiving portion. FIG. It is a perspective view of a sheet winding apparatus. It is a front view of a sheet winding apparatus. It is a slope view of a packaging sheet. It is a disassembled slope view of a packaging sheet.

Explanation of symbols

1 Roll rice cooker
21 Turntable 3 Packaging sheet feeder
40 Conveyor 5 Receiving part
51 cradle
52 Receiving member 6 Sheet winding device
61 Lift roller
62 Stereotaxic roller
63 Presser roller 7 Packaging sheet
71 Sheet body
73 Covered film 8 Roll-shaped cooked rice 9 Covered film folding device

Claims (1)

A wrapping sheet (7) in which a covering film (73) (73) covering both ends of the roll-shaped food is provided on opposite sides of the rectangular sheet (71) that wraps around the peripheral surface of the roll-shaped food is rolled. A packaging sheet feeding device (3) for feeding under the food feeding station S5;
Passing intermittently through the lower part of the roll food supply station, the receiving part (5) is provided with receiving parts (5) at equal intervals in the turning direction, and falls into the receiving part (5) falling on the packaging sheet (7). A conveying device (40) for projecting upward from the receiving portion (5) and conveying it to the next process, both ends of the sheet body (71) and the outer end portions of the covering films (73) (73);
Corresponding to the stop position of the receiving portion (5) closer to the downstream side than just below the packaging sheet supply position, the opposite positions are provided with the conveying device (40) interposed therebetween, and they approach each other perpendicular to the conveying direction of the conveying device (40). A covering film folding device (9) comprising a pair of folding members (91) (91) for folding the upper end of the covering film (73) (73) inward and covering the peripheral surface of the roll-shaped food;
The end (71a) (71b) of the sheet body (71) projecting upward from the receiving part (5) in the middle of the transition provided on the downstream side of the covering film folding device (9) obstructs the transition. Baffle member (45) that folds part (71a) (71b) in the anti-transition direction;
Rollers (61), (61), (62), and (63) are arranged on the downstream side of the baffle member (45) so as to be relatively close to and away from each other across the transition path of the roll food, and the rollers ( 61) (61) (62) (63) sandwich the roll food together with the packaging sheet (7) and forcibly rotate it, so that the ends (71a) (71b) of the sheet body (71) are placed around the roll food. Sheet winding device (6) along the surface;
A fastening device (100) for fastening the winding end of the sheet body (71) by thermal welding, labeling or the like ,
The transport device (40) includes endless strips (41) and (41) that are kept in parallel and that divide into left and right synchronously, and receiving portions (5) arranged on the strips (41) and (41) at equal intervals. Each receiving portion (5) is arranged on the adjacent strips (41) and (41) with the same phase and oriented in a direction perpendicular to the circumferential direction of the strips (41) and (41). A pair of left and right cradles (51) and (51) that support both ends of the roll-shaped food, and covering films disposed on the outer sides of the cradles (51) and (51) on both belt bodies (41) and (41), respectively The baffle members (56) and (56), each cradle (51) is a pair of substantially L-shaped receiving members (52 ) (52a), the downstream receiving member (52) has a shape that can surround the front peripheral surface from the bottom of the roll-shaped food, and is provided so as to be inclined in the transition direction of the receiving portion (5). The receiving member (52a) has a shape that can surround the rear peripheral surface from the bottom of the rolled food. The receiving member (5) is provided so as to be tiltable in the direction opposite to the transition direction, and the receiving members (52) and (52a) are urged by the urging means so that the lower ends are opposed to each other and the upper ends are directed upward. The covering film baffle members (56) and (56) are both receiving members (52) and (52a) from the outer edge side of the band (41) with respect to the opposing receiving members (52) and (52a). The receiving members of the two cradles (51) corresponding to the positions where the roll-shaped food is dropped on the cradle (51) (51) while being placed on the packaging sheet (7) (52) (52a) is provided with a tilting means (43) forcibly tilting against the biasing means, and is provided in the rollers (61) (61) (62) (63) of the sheet winding device (6). The roll food packaging apparatus , wherein at least two rollers (61) (61) are arranged to be movable up and down between adjacent belts (41) (41) .

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