JP5313784B2 - Packaging film manufacturing equipment for rice balls - Google Patents

Description

  The present invention relates to a packaging film used for packaging rice balls, and more particularly, to an apparatus for producing a packaging film in which sheet-like food such as plate seaweed is accommodated.

  Conventionally, many commercially available rice balls sold at convenience stores and widely spread are individually packaged.

  The typical triangular rice balls are generally those in which plate seaweed is contained in a packaging film. Such plate seaweed is accommodated in the packaging film in a non-contact state with the rice ball, but when the packaging film is unwound, the rice ball sits on the plate seaweed.

  That is, the rice ball packaging film is formed of two inner films F1 and F2 and an outer film F3, as shown in FIG. Inner films F1 and F2 that are in contact with the rice ball mass O that is the main body of the rice balls are formed to be narrower than the outer film F3, respectively, and the edge portions forming the inside of both are polymerized by about 10 mm. That is, even if it is in the state of being wrapped with the packaging film F, the plate seaweed N is prevented from getting wet by being isolated from the cooked rice lump O via the inner films F1 and F2. In addition, what was shown with the code | symbol T in the figure is the cutting tape for tearing the packaging film F. FIG.

  As described above, the commercially available packaging film F for rice balls is generally formed of two inner films F1, F2 and one outer film F3. Three film rolls around which the films F1, F2, and F3 are wound are set (see, for example, Patent Document 1). That is, two inner film rolls are required for one outer film roll. Moreover, the packaging film manufacturing apparatus cuts and bisects a row of strip-shaped packaging films supplied in the middle of the production, and divides the two packaging films F and F simultaneously from the two rows of packaging film strips. If it is the structure made to obtain, three inner film rolls will be needed with respect to one outer film roll.

Japanese Patent Laying-Open No. 2006-67802 (paragraph 0016, FIG. 9)

  However, when 2 to 3 film rolls are set only by the inner film roll, it takes time to set and the size of the film manufacturing apparatus is increased. In addition, manufacturers of packaging films have been forced to perform inefficient production, such as having to divide one type of inner film roll into two or three parts.

  The present invention has been made in view of such a situation, and by simply setting a single inner film roll having a predetermined width, it is possible to manufacture a packaging film for rice balls using an inner film divided into left and right. The purpose is to.

  (1) A packaging film manufacturing apparatus for rice balls in which sheet-like food is stored in inner and outer films, (a) a sheet-like food supply unit for supplying the sheet-like food; and (b) set. An inner film supply unit and an outer film supply unit that are capable of feeding a film in a strip shape from each of the film rolls; and (c) sheet-like food supplied from the sheet-like food supply unit from the inner / outer film supply unit A feeding section for sequentially feeding the supplied strip-shaped inner and outer films with a predetermined interval; and (d) cutting the strip-shaped film conveyed from the feeding section so that the sheet-like food is A packaging film supply section for supplying the packaging films stored individually, and the inner film supply section is (b1) a predetermined interval in the width direction orthogonal to the feeding direction of the film roll. A strip-shaped inner film having a predetermined width, which is arranged open and is fed from a roll of film roll, and the strip-shaped first and second inner films located on the left and right sides along the feeding direction and the strip-shaped inner film located in the center. A cutter that cuts into the third inner film; and (b2) the right edge of the first inner film and the left edge of the third inner film are polymerized and the right side of the third inner film And a polymerization amount adjusting device that polymerizes the edge portion and the left edge portion of the second inner film and further adjusts the polymerization width of each edge portion.

  (2) In the packaging film manufacturing apparatus for rice balls of (1) above, the polymerization amount adjusting device is configured in two upper and lower stages arranged at right and left sides inclined at a predetermined angle with respect to the traveling direction of the strip-shaped inner film. The first inner film and the second inner film are passed through the lower side of the lower roller of the roller set, bent upward, and hung so as to pass the upper side of the upper roller of the roller group. It is characterized by passing.

  (3) In the packaging film manufacturing apparatus for rice balls of (2) above, the first inner film is mounted on a roller set disposed on the right side of the pair of left and right rollers on which the second inner film is bridged. Positioned above the roller set disposed on the left hand side, on the lower side of the polymerization amount adjusting device in the first inner film and the second inner film, on the right edge of the first inner film The left edge portion of the third inner film is superposed on the right edge portion of the third inner film on the right edge portion of the third inner film.

  (4) In the packaging film manufacturing apparatus for rice balls according to any one of (1) to (3), the sheet-like food supply unit can hold (a1) the contained sheet-like food in a laminated state, and (A2) a suction housing formed with a suction port at the top and disposed so as to be movable up and down below the sheet food storage housing. (A-3) The lowermost sheet-like food in the sheet-like food storage case adsorbed via the suction port when the suction case is raised is delivered when the suction case is lowered. And a conveyor.

  (5) In the packaging film manufacturing apparatus for rice balls of (4) above, the suction housing has a curved upper surface portion in which the suction port is formed and a central portion bulges upward, and left and right sides of the upper surface portion. And a flange that protrudes outward from the lower limit end.

  (6) In the packaging film manufacturing apparatus for rice balls of (4) or (5) above, a holding plate is provided for receiving and holding the sheet-like food stored in a stacked state in the sheet-like food storage case from below. The holding plate is formed by the sheet-like food remaining in the sheet-like food storage case when the suction case rises and adsorbs and lowers the lowermost sheet-like food in the sheet-like food storage case. It is arranged so as to be able to advance and retreat in a space formed between the food and the heel portion.

  According to the present invention, the production of a packaging film for rice balls that uses an inner film divided into left and right is set not only with two or three inner film rolls but with a single inner film roll having a predetermined width. The film roll can be set easily in a short time, and the film manufacturing apparatus can be made more compact than the conventional one.

It is explanatory drawing of a packaging film. It is the whole front view of the packaging film manufacturing apparatus for rice balls which concerns on one Embodiment of this invention. It is a front view which shows the inner / outer film supply part of the packaging film manufacturing apparatus. It is a typical side view of the inner film supply part of the packaging film manufacturing apparatus. It is the same schematic perspective view. It is a top view which shows the principal part of the same film supply part. It is explanatory drawing of the polymerization amount adjustment apparatus which makes the principal part of the same film supply part. It is function explanatory drawing of the polymerization amount adjustment apparatus. It is a front view which shows the sheet-like food supply part of a packaging film manufacturing apparatus. It is a top view of the sheet-like food supply part. It is explanatory drawing of the suction housing of the sheet-like food supply part. It is explanatory drawing regarding replenishment of the laver bundle in a sheet-like food supply part. It is explanatory drawing which shows the operation | movement of a suction housing and the delivery operation | movement of a board nori.

  The packaging film manufacturing apparatus according to this embodiment manufactures the packaging film F for rice balls shown in FIG. 1 in which plate seaweed is housed in inner and outer films as a sheet-like food. The whole external appearance by the front view of the packaging film manufacturing apparatus for rice balls is shown.

(Outline of packaging film production equipment)
As shown in FIG. 2, the packaging film manufacturing apparatus manufactures a packaging film F for rice balls having a predetermined shape and a predetermined length from film rolls 31 and 41 wound with wide inner and outer films 32 and 42. A plurality of functional units that execute the processes are arranged in a line, and the functional units operate in cooperation with each other. In addition, each functional part has its drive source, drive part, etc. assembled in a frame provided with a rolling wheel W on the bottom, and can be maintained for each frame separately.

  As shown in the figure, the functional part is set with a seaweed supply part 1 for supplying sheet nori N which is a sheet-like food, and a seaweed transport part 2 for transporting the supplied sheet nori N to the next process while shaping it. Further, the inner film supply unit 3 and the outer film supply unit 4 that can feed out the wide inner and outer films 32 and 42 in a strip shape from the film rolls 31 and 41 that are single rolls, respectively, and the laver supply unit 1 The plate seaweed N is formed in a predetermined prescribed width from the inner / outer film supply units 3 and 4 and supplied in a strip shape, and a predetermined interval is sequentially provided between the corresponding outer film F3 and the corresponding outer film F3. A feeding film supply for feeding a packaging film F in which the laver N is transported from the feeding section 5 and the strip-shaped laver-containing film transported from the feeding section 5 is cut. Part 6 , And a.

  In the present embodiment, the laver supply unit 1, the laver transport unit 2, and the packaging film supply unit 6 are each assembled in one frame, and the inner film supply unit 3, the outer film supply unit 4 and the infeed unit 5 have one frame. Are integrated together. Each frame is provided with a protective transparent case C having a shape corresponding to each frame to protect the operator's safety and to provide a packaging film F used for packaging plate nori N and rice balls as food. Is prevented as much as possible.

  As will be described in detail later, with the above-described configuration, the plate laver N is sequentially supplied from the laver supply unit 1 provided on one end side of the packaging film manufacturing apparatus via the laver transport unit 2, while approximately the center of the apparatus. The wide inner and outer films 32 and 42 are fed out from the film rolls 31 and 41 of the inner and outer film supply units 3 and 4 provided in two upper and lower positions at the positions, respectively, and these are cut in the middle, Separately supplied into two inner film rows consisting of a set of two inner films F1, F2 and two outer film rows consisting of an outer film F3, the inner film supply section 3 and the outer film supply section 4 In the feeding section 5 located between them, the plate seaweed N can be fed sequentially between the inner films F1, F2 and the outer film F3 in two rows. That is, two rows of entering films are simultaneously supplied to the next process. And in the packaging film supply part 6 provided in the other end side of the apparatus, the laver-containing films flowing in two rows are cut at a predetermined pitch respectively, and the packaging films F each containing the plate laver N are individually stored. You can get two at a time.

  The packaging film manufacturing apparatus according to this embodiment is particularly characterized by the laver supply unit 1 and the inner film supply unit 3.

  3 is a front view showing an inner / outer film supply section of the packaging film manufacturing apparatus, FIG. 4 is a schematic side view of the inner film supply section of the packaging film manufacturing apparatus, and FIG. 5 is a schematic perspective view thereof.

  As described above, the packaging film manufacturing apparatus feeds the wide inner film 32 and the wide outer film 42 from one roll of film rolls 31 and 41, respectively, and cuts and separates them with the cutter 7 so as to form two rows. Thus, it is possible to manufacture two wrapping films F each containing the plate seaweed N individually.

  As shown in FIG. 3, the frame in which the inner film supply unit 3, the outer film supply unit 4, and the feeding unit 5 are incorporated includes an upper and lower partition frame 51 at a position approximately 1/3 from below. The inner film supply unit 3 is disposed at the lower portion and the outer film supply unit 4 is disposed at the upper portion, with 51 as a boundary. In the figure, 33 and 43 are film roll setting sections, and 34 and 44 are film supply lines on which a plurality of rollers such as carrier rollers and tension rollers are installed. The wide inner film 32 and the wide outer film 42 fed out from the film rolls 31 and 41 respectively set in the film roll setting parts 33 and 43 are directed toward the feeding part 5 while being bent many times. And when the plate seaweed N is inserted in the sending-in part 5, while progressing linearly, the seal part 52 arrange | positioned in the middle and a pair of inner film F1, F2 and outer film F3 by the built-in heater Will be welded.

(About the inner film supply section)
Here, the inner film supply part 3 which is the principal part in this embodiment is demonstrated more concretely.

  One packaging film F requires two inner films F1, F2, and an inner film supply unit 3 for supplying the inner films F1, F2 is as shown in FIGS. In addition, the wide inner film 32 is fed out from one roll of the film roll 31 and is divided into three in the middle by two cutters 7 arranged at a predetermined interval. Each cutter 7 includes a belt-shaped first inner film 32L and a second inner film 32R which are located on the left and right sides along the feeding direction of a belt-shaped wide inner film 32 having a predetermined width fed from a roll of film roll 31. The film roll 31 is disposed at a predetermined interval in the width direction orthogonal to the feeding direction of the film roll 31 so that it can be cut into the strip-shaped third inner film 32C located at the center.

  The third inner film 32C is further divided into two from the center later, and is supplied as the inner film F1 or the inner film F2 of the two packaging films F, F manufactured simultaneously.

  Further, the inner film supply unit 3 includes a right edge 32L-R of the first inner film 32L and a left edge 32C-L of the third inner film 32C formed by being cut by the cutters 7 and 7, respectively. And polymerizing the right edge portion 32C-R of the third inner film 32C and the left edge portion 32R-L of the second inner film 32R, and each of the edge portions 32L-R, 32R-L, A polymerization amount adjusting device 8 that can adjust the polymerization width D of 32C-L and 32C-R is provided.

  6 is an explanatory diagram of the polymerization amount adjusting device, FIG. 7 is a functional explanatory diagram of the polymerization amount adjusting device, and FIG. 8 is an operation principle diagram of the polymerization amount adjusting device 8. The polymerization amount adjusting device 8 is composed of two upper and lower rollers arranged on the left and right sides of the belt-like first inner film 32L, the second inner film 32R, and the third inner film 32C at 45 degrees with respect to the traveling direction. A set 80L, 80R is provided. Then, the first inner film 32L and the second inner film 32R are bent upward by passing below the lower rollers 81L, R of the roller sets 80L, R, and the upper rollers 82L, R of the roller sets 80L, R are bent. It is routed so that it passes through the upper side. In this embodiment, the upper and lower two-stage roller sets 80L, 80R are inclined 45 degrees with respect to the traveling direction of the inner films 32L, 32R, 32C. However, this inclination angle is particularly limited to this value. It may be set as appropriate.

  Of the pair of left and right roller sets 80L and 80R, the roller set 80R arranged on the right side over which the second inner film 32R is bridged is higher than the roller set 80L arranged on the left side over which the first inner film 32L is bridged. The left side end of the third inner film 32C is positioned on the right side edge 32L-R of the first inner film 32L on the lower side of the polymerization amount adjusting device 8 in the first inner film 32L and the second inner film 32R. The left end edge 32R-L of the second inner film 32R is superposed on the right end edge 32C-R of the third inner film 32C so that the left end edge 32C-L of the edge overlaps. Yes.

  As shown in FIG. 6, the polymerization amount adjusting device 8 includes operation handles 83L, R for swinging the roller sets 80L, R via the gear box 84, and the left and right operation handles 83L, R can also be operated from one side (the front side in this embodiment). By operating the operation handles 83L, R, the roller sets 80L, 80 swing up and down around the respective support shafts 81a.

  Then, as shown in FIG. 7, the roller groups 80L, R swing and the height thereof changes, whereby the overlapping widths of the end edges 32L-R, 32R-L, 32C-L, 32C-R D is variable.

  In FIG. 4, reference numerals 30a and 30b denote roller support panels, in which long holes 30c for supporting the circumferential length adjusting rollers 35 to 38 so as to be vertically movable are formed. By adjusting the height of the circumferential length adjusting rollers 35 to 38 in the long hole 30c, the first inner film 32L, the second inner film 32R and the third inner film divided into three parts after passing through the polymerization amount adjusting device 8 are obtained. Each circumferential length of the inner film 32C is made substantially equal.

  Here, by the polymerization amount adjusting device 8, the polymerization width D of each of the edge portions 32L-R, 32R-L, 32C-L, R of the first inner film 32L, the second inner film 32R, and the third inner film 32C is set. A mechanism that can be adjusted will be described with reference to FIGS. Note that the film f1 in FIG. 8 corresponds to the second inner film 32R passing through the roller set 80R, and the film f2 corresponds to the third inner film 32C. In FIG. 8, the upward direction is the film traveling direction.

  In FIG. 8A, the roller set 80R does not exist or the lower roller 81R and the upper roller 82R are arranged in parallel at the same height, and the film f1 and the film f2 advance in the horizontal direction. The case (the film f1 is not bent upward by a mechanism corresponding to the roller set 80R) is shown. On the other hand, FIG. 8B shows a case where the film f1 is bent upward by a mechanism corresponding to the roller set 80R. Note that e and b in the figure indicate the film folding center, and correspond to a state in which the film f1 is bent by the lower roller 81R and the upper roller 82R of the roller set 80R. The virtual line indicated by fc is the film virtual center line of the film f1.

  As shown in FIG. 8 (a), when both the films f1 and f2 are moving straight in the horizontal direction, the film f1 is linear like the film f2, and the films f1 and f2 proceed without being polymerized with each other. Go.

  On the other hand, as shown in FIG. 8B, if the lower roller 81R and the upper roller 82R of the roller set 80R are different in height, the film f1 traveling in the horizontal direction is bent upward by the lower roller 81R. (E), and then bent again in the horizontal direction by the upper roller 82R (b).

  As shown in FIG. 8B, when the film f1 is bent 90 degrees upward, the a position overlaps the d position in FIG. 8A and the c position overlaps the f position in plan view. That is, it can be seen that the film virtual center line fc of the film f1 moves horizontally from the position of FIG. 8A toward the film f2 side, and the film f1 and the film f2 are superposed with a predetermined width D ′.

  Therefore, as shown in FIG. 7, it is possible to adjust the overlapping width D by operating the operation handles 83L, R to swing the roller sets 80L, R of the overlapping amount adjusting device 8 up and down.

  As described above, according to the packaging film manufacturing apparatus according to this embodiment, two sheets whose ends overlap each other with a predetermined width D can be obtained by simply setting a single film roll 31 having a predetermined width. Two rows of packaging films F having inner films F1 and F2 can be formed. Therefore, the setting operation of the film roll 31 can be facilitated, the setting time can be shortened, and the configuration of the film manufacturing apparatus itself can be made compact.

(About the seaweed supply section)
The laver supply part 1 is demonstrated more concretely in the packaging film manufacturing apparatus for rice balls mentioned above.

  FIG. 9 is a front view showing the sheet-like food supply unit of the packaging film manufacturing apparatus, FIG. 10 is a plan view of the sheet-like food supply unit, and FIG. 11 is an explanatory view of the suction housing of the sheet-like food supply unit. FIG. 12 is an explanatory diagram relating to replenishment of a laver bundle, and FIG. 13 is an explanatory diagram showing the operation of the suction housing and the delivery operation of the plate laver.

  As shown in FIGS. 9 to 11, the laver supply unit 1 can hold the stored laver N in a stacked state, and the laver storage casing 10 that can sequentially take out the laver N from the lower surface side, The suction port 11 is formed at the same time, the suction housing 12 is disposed below the laver storage case 10 so as to be movable up and down, and the nori storage case 10 adsorbed via the suction port 11 when the suction case 12 is raised. The lowermost plate laver N is provided with a conveyer 13 that is delivered when the suction housing 12 is lowered. In addition, as shown in FIG. 10, the suction part 13a is formed in the conveyance conveyor 13 at predetermined intervals. In FIG. 9, reference numeral 120 denotes an elevating mechanism for elevating and lowering the suction housing 12.

  As shown in FIG. 10, auxiliary conveyors 131 and 132 are disposed on the left and right sides (upper and lower sides in the figure) of the transport conveyor 13, which will be described in detail later, from the suction housing 12 to the transport conveyor 13. The board seaweed N can be delivered smoothly.

  As shown in the drawing, the laver storage casing 10 has an open lower surface, and a suction casing 12 described in detail later is provided in the open portion. A laver replenishment section 14 for replenishing a bundle of plate laver N (hereinafter referred to as “laver bundle NB”) is installed on the upper side of the laver storage case 10.

  The seaweed replenishment unit 14 includes a plurality of pressers 14a, 14b, and 14c that can sequentially push a plurality of seaweed bundles NB toward the seaweed storage case 10, and among these, the start end side (see FIG. 9 and FIG. 9). The left side (in FIG. 10) push bar 14a is a fixed bar, but the side bars 14b and 14c are mounted so as to be movable up and down (see FIG. 12). The raising / lowering operation of the pressing rods 14b and 14c will be described later.

  As shown in FIG. 9, a blower device 16 communicates with the suction housing 12 and the transport conveyor 13 via a flexible duct 17 and a suction switching unit 18. The negative pressure generated by the blower device 16 due to the operation of a switching valve mechanism (not shown) provided in the suction switching unit 18 is sucked until the plate laver N is adsorbed from the laver storage casing 10 to the suction casing 12. When the plate laver N that acts on the casing 12 and is adsorbed is transferred to the transport conveyor 13, it acts on the transport conveyor 13.

  As shown in FIGS. 10 to 13, the suction housing 12 is formed with a plurality of suction ports 11 and protrudes outward from the left and right lower limit ends of the curved upper surface portion 12 a bulging upward at the center. The collar part 12b was provided.

  2. Description of the Related Art Conventionally, a saddle with a curved upper surface 12a of a suction housing 12 is known. That is, the left and right sides of the upper surface portion 12a serving as the adsorption surface of the plate nori N in which the plurality of suction ports 11 are formed are gradually inclined downwardly on the left and right sides, which are the sides along the conveying direction of the plate nori N. When N is adsorbed, the left and right ends of the plate seaweed N are also bent downward along the upper surface portion 12a.

  At this time, if the brim portion 12b is not provided, when the plate seaweed N adsorbed in a state of being bent along the upper surface portion 12a is delivered to the transport conveyor 13, it is bent downward. Before the left and right ends of the plate seaweed N return to the horizontal direction, they may interfere with the starting end portion of the transfer conveyor 13 and hinder delivery. In this respect, since the flange portion 12b is provided in the present embodiment, the left and right ends of the plate seaweed N bent along the upper surface portion 12a of the suction housing 12 has a posture extending in a substantially horizontal direction. The board seaweed N is smoothly transferred to the conveyor 13.

  Further, at this time, a plurality of plate laver N accommodated in the laver storage case 10 in a stacked state by a space Q formed between the brim portion 12b and the nori bundle NB left in the nori storage case 10. A movable region of the holding plate 15 for receiving and holding the laver bundle NB made of is secured from below.

  In the present embodiment, the holding plate 15 is attached to the laver storage case 10 and, as shown in FIG. 11, is attached to the upper end of each drive rod 152 that is interlocked and connected to the left and right transmission boxes 151 containing cams and gears. These are attached in a protruding state so as to face each other.

  Then, when the suction housing 12 rises and adsorbs and descends the lowermost plate laver N in the laver storage housing 10, the holding plate 15 holds the laver bundle NB remaining in the laver storage housing 10 and the suction. It is driven so as to be able to advance and retreat in a space Q formed between the upper and lower lower end of the upper surface 12a of the casing 12 and the flange 12b protruding outward (FIGS. 13B to 13C). reference). In FIGS. 9 and 11, reference numeral 153 is a holding plate drive rod, 154 is a suction housing drive rod, and is linked to a drive mechanism housed in a drive box 155 (FIG. 9).

  Here, referring to FIG. 12 and FIG. 13, from the operation of replenishing the seaweed bundle NB in the seaweed replenishing unit 14 to the time when the plate laver N is adsorbed by the suction housing 12 and delivered to the transport conveyor 13, The operation will be described. As will be described below, in this embodiment, the laver bundle NB is gradually replenished visually by the operator. However, a sensor or the like is provided to determine the amount of the laver N in the laver storage casing 10. In addition to the detection, a configuration in which the laver bundle NB can be sequentially supplied from a plurality of laver bundle groups to the laver replenishment unit 14 can be configured to perform an automatic replenishment operation of the laver bundle NB.

  As shown in FIG. 12A, when the laver N is sequentially supplied from the laver storage case 10, three laver bundles NB (first, second, third from the left in the figure) Is sometimes referred to as NB.

  The seaweed replenishment unit 14 includes a movable body 140 that is slidably disposed. A plurality of pushers that can sequentially push a plurality of laver bundles NB toward the laver storage housing 10 on the movable body 140. 14a, 14b, 14c. Of the pressing rods 14a, 14b, 14c, the pressing rods 14b, 14c are linked to the actuators 14d, 14d and can be moved up and down freely. When the amount exceeds a predetermined value, the pushers 14b and 14c are lowered. In the figure, 141 is a rolling wheel for sliding the moving body 140.

  When the operator confirms that the laver N in the laver storage case 10 has become less than a predetermined amount and operates a switch (not shown), the actuator 14d is actuated as shown in FIG. , 14c are raised. At this time, the pressing rod 14b enters between the first laver bundle NB and the second laver bundle NB, and the pressing rod 14c enters between the second laver bundle NB and the third nori bundle NB.

  Next, as shown in FIG. 12 (c), the moving body 140 moves to the right in the figure by a predetermined distance, and the pushers 14 a, 14 b, 14 c move the laver bundle NB to the position directly above the laver storage casing 10. Will be pushed into.

  In the vicinity of the upper edge of the laver storage case 10, holding rollers 101, 101 for holding the laver bundle NB from the lower left and right sides are provided so as to be able to advance and retreat (see FIG. 13A). It is held above the seaweed storage case 10 by the holding rollers 101, 101.

  As shown in FIG. 12 (d), the actuators 14d and 14d are actuated to lower the pushers 14b and 14c, and then the holding rollers 101 and 101 are moved backward as shown in FIG. While moving NB into the seaweed storage case 10, the moving body 140 also moves backward. At this time, since a space corresponding to one laver bundle NB is formed in front of the push rod 14b located at the end, the operator sets a new laver bundle NB in this space, and in FIG. It will be in the state shown. The seaweed bundle NB dropped into the seaweed storage case 10 is received by the holding plate 15.

  In this way, the laver bundle NB is always stored in the laver storage case 10, and the laver supply unit 1 supplies the laver N1 one after another while the packaging film manufacturing apparatus is in operation. become.

  Next, the suction casing 12 and the operation until the plate seaweed N is delivered to the transport conveyor 13 will be described with reference to FIG. 13A shows a state in which the laver bundle NB is held above the laver storage case 10 as shown in FIGS. 12C and 12D. The outline of the operation | movement which the suction casing 12 raises and adsorb | sucks the board nori N located in the lowest part among the laver bundles NB inside, and descend | falls in the adsorbed state is shown. 13 (b) to 13 (d), the laver bundle NB is accommodated in the laver storage casing 10, and the lowermost plate laver N is sequentially adsorbed by the suction casing 12 and is conveyed to the conveyor 13 ( (See FIG. 10). In the figure, reference numeral 102 denotes an actuator for driving the holding roller 101 forward and backward.

  As shown in FIG. 13 (b), when there is a laver bundle NB of a predetermined amount or more in the laver storage casing 10, the suction casing 12 connected to the blower device 16 rises and hits the lowermost surface of the laver bundle NB. Touch. At this time, the holding plates 15 and 15 are located in the lowest part.

  The plate laver N located at the lowermost part of the laver bundle NB is adsorbed by a plurality of suction ports 11 formed in the upper surface part 12a of the suction housing 12. At this time, the plate seaweed N bends downward along the upper surface portion 12a, and the left and right end portions extend substantially horizontally along the flange portion 12b.

  Next, as shown in FIG. 13 (c), the suction housing 12 descends while adsorbing the plate nori N. At this time, the laver bundle NB also descends as the suction casing 12 descends, but the left and right holding plates 15, 15 are attached to the adsorbed plate laver N on the upper surface portion 12 a of the suction casing 12 and the laver bundle NB. In the space Q formed between the seaweed (between the ridges 12b) and hold the laver bundle NB. At this time, the switching valve mechanism provided in the suction switching unit 18 is operated to switch the negative pressure generated by the blower device 16 from the suction housing 12 to the transport conveyor 13 side.

  Next, as shown in FIG. 13 (d), the suction casing 12 that adsorbs the plate nori N is further lowered, and the holding plates 15 and 15 holding the nori bundle NB are raised to a predetermined position.

  Since the left and right ends of the plate seaweed N released from the suction force by the suction housing 12 extend substantially horizontally along the flange 12b, the left and right ends of the plate seaweed N are surely placed on the auxiliary conveyors 131 and 132 and are transported. It is adsorbed by the suction part 13a (see FIG. 10) of the conveyor 13 and is reliably conveyed by the conveying conveyor 13.

  In FIG. 13, reference numeral 103 denotes a detaching hook for more reliably detaching the plate laver N from the suction housing 12, and the plate laver N is attached to the upper surface of the suction housing 12 in accordance with the switching operation timing of the suction switching unit 18. It is made to pull away from 12a.

  As described above, according to the present embodiment, the plate nori N (sheet-like food) is a packaging film manufacturing apparatus for rice balls in which the inner and outer films F1, F2, and F3 are housed. Supplied from the laver supply unit 1, the laver supply unit 1 for supplying the plate laver N, the inner film supply unit 3 and the outer film supply unit 4 that can feed out the films from the set film rolls 31, 41, respectively, and the laver supply unit 1. A feeding section 5 for feeding the laver N from the inner and outer films F1, F2 and F3 fed from the inner and outer film feeding sections 3 and 4 sequentially at predetermined intervals. The inner film supply unit 3 includes an inner film roll 31. The inner film supply unit 3 includes a packaging film supply unit 6 that cuts the belt-shaped film conveyed from the unit 5 and supplies the packaging film F in which the plate seaweed N is individually stored. Feeding out A strip-shaped inner film disposed at a predetermined interval in the width direction orthogonal to the direction and having a predetermined width fed from one roll of the inner film roll 31 is positioned on the left and right sides along the feeding direction. 1. Cutters 7 and 7 for cutting the second inner films 32L and 32R and the belt-like third inner film 32C located in the center, the right edge 32L-R of the first inner film 32L and the third inner The left side edge part 32C-L of the left side edge part of the film is polymerized and the right side edge part 32C-R of the third inner film and the left side edge part 32R-L of the second inner film 32R are polymerized. Furthermore, a rice ball packaging film manufacturing apparatus including a polymerization amount adjusting device 8 that can adjust the polymerization width D of each of the edge portions 32L-R, 32R-L, 32C-L, and 32C-R is provided.

  Therefore, it is not possible to manufacture two packaging films F for rice balls that use the inner films F1 and F2 divided into left and right at the same time, but two single inner films with a predetermined width instead of three inner film rolls. This can be realized simply by setting the roll 31, and the film roll 31 can be easily set in a short time, and a film production apparatus that is more compact than conventional ones can be achieved. Furthermore, since the plate seaweed N set in the packaging film F can be reliably supplied to the production line and the yield can be improved, the production efficiency of the packaging film F is improved.

  Further, in the case where two to three inner film rolls are set as in the prior art, it is necessary to control the tension of the strip-shaped inner film fed from each inner film roll. In other words, the single outer film F3 must be controlled so as to balance the tensions of the inner film in two to three rows, which is very troublesome in terms of configuration and control. In this embodiment, the tension control of the inner film may be performed before cutting with the cutter 7, and the tension control of the single inner film may be performed for the single outer film F3. More reliable inner film tension control is possible.

  Furthermore, according to this embodiment, the following effects can be expected.

  In the above configuration, the polymerization amount adjusting device 8 includes upper and lower two-stage roller sets 80L and 80R inclined at a predetermined angle with respect to the traveling direction of the belt-shaped inner film, and includes a first inner film 32L. The second inner film 32R is bent so that it passes below the lower rollers 81L and 81R of the roller sets 80L and 80R and bends upward, and passes above the upper rollers 82L and 82R of the roller sets 80L and 80R. It was set as the manufacturing apparatus of the packaging film for handed rice balls. Therefore, it is possible to easily and reliably adjust the overlapping width D of the inner end portions of the inner films F1, F2 divided into the left and right.

  Further, in the above configuration, of the pair of left and right roller sets 80L and 80R, the roller set 80R arranged on the right side where the second inner film 32R is bridged is arranged on the left side where the first inner film 32L is bridged. The third inner film is positioned above 80L, on the lower side of the polymerization amount adjusting device 8 in the first inner film 32L and the second inner film 32R, on the right edge 32L-R of the first inner film 32L. The left end edge 32R-L of the second inner film 32R is superposed on the right end edge 32C-R of the third inner film 32C so that the left end edge 32C-L of the left end edge 32C overlaps. It was set as the manufacturing apparatus of the packaging film for rice balls. Therefore, when it is set as the line structure which installed the laver supply part 1, the inner film supply part 3, the outer film supply part 4, the sending-in part 5, and the packaging film supply part 6 on the substantially straight line, the inner film F1, Adjustment of the overlapping width D of the inner end portion of F2 can be performed from one side, and workability is improved.

  In the above-described configuration, the laver supply unit 1 can hold the laver bundle NB (the accommodated laver bundle N (sheet-like food) in a laminated state), and the laver container that can sequentially take out the laver N from the lower surface side. A suction port 11 is formed at the top of the housing 10, and a suction housing 12 that is disposed so as to be movable up and down below the laver storage housing 10. When the suction housing 12 is lifted, it is sucked through the suction port 11. The lowermost plate laver N in the laver storage case 10 was used as a packaging film manufacturing apparatus for rice balls provided with a transfer conveyor 13 that was delivered when the suction case 12 was lowered. Therefore, it is possible to reliably supply the plate nori N, and to prevent the plate nori N from being clogged on the line or being in a shortage state where it is not delivered.

  Further, in the above-described configuration, the suction housing 12 has the suction port 11 formed therein, a curved upper surface portion 12a whose central portion bulges upward, and a flange projecting outward from the left and right lower limit ends of the upper surface portion 12a. It was set as the manufacturing apparatus of the packaging film for rice balls which comprises the part 12b. Therefore, the left and right ends of the plate nori N bent along the upper surface portion 12a of the suction housing 12 are in a posture extending in a substantially horizontal direction, and the plate nori N can be smoothly transferred to the transport conveyor 13.

  Further, in the above configuration, holding plates 15 and 15 are provided for holding and holding the laver bundle NB (the laver N stored in the laver storage case 10 in a stacked state) in the laver storage case 10 from below. When the suction casing 12 rises and the board 15 adsorbs and descends the lowermost board laver N in the laver storage casing 10, the board 15 is made up of the laver N remaining in the laver storage casing 10 and the ridge part 12b. It was set as the manufacturing apparatus of the packaging film for rice balls arrange | positioned so that it could advance / retreat in the space Q formed in between. Therefore, since the movable region of the holding plate 15 is secured and the laver bundle NB is reliably held, troubles in the laver supply unit 1 can be prevented in advance.

  As mentioned above, although this invention was demonstrated through embodiment based on attached drawing, this invention is not necessarily limited to the structure of embodiment, If it is a range which does not deviate from the summary of this invention, it is to drawing. The configuration shown may be changed as appropriate.

D polymerization width N plate nori NB laver bundle F packaging film F1, F2 inner film F3 outer film Q space 1 laver supply part 3 inner film supply part 4 outer film supply part 5 infeed part 6 packaging film supply part 7 cutter 8 polymerization amount Adjustment device 10 Seaweed storage case 11 Suction port 12 Suction case 12a Upper surface part 12b Ridge part 13 Conveyor 15 Holding plate 31 Inner film roll 32L First inner film 32R Second inner film
41 Outer film roll 32L-R Right edge of first inner film 32C-L Left edge of third inner film 32C-R Right edge of third inner film 32R-L Left edge of second inner film Edge 80L, 80R Roller set 81L, 81R Lower roller 82L, 82R Upper roller

Claims (6)

A packaging film manufacturing apparatus for rice balls in which sheet-like food is stored in inner and outer films,
A sheet-like food supply unit for supplying the sheet-like food;
An inner film supply unit and an outer film supply unit that can feed the film in a band shape from the set film roll,
A feeding unit that feeds the sheet-like food supplied from the sheet-like food supply unit sequentially with a predetermined interval between the strip-like inner and outer films supplied from the inner and outer film supply unit;
A packaging film supply unit that cuts the belt-shaped film conveyed from the sending-in unit and supplies the packaging film in which the sheet-like foods are individually stored, and
With
The inner film supply unit
A belt-shaped inner film having a predetermined width that is disposed at a predetermined interval in the width direction perpendicular to the feeding direction of the film roll and that is positioned on the left and right sides along the feeding direction. A cutter that cuts the first and second inner films and the belt-like third inner film located in the center;
While polymerizing the right edge of the first inner film and the left edge of the third inner film, the right edge of the third inner film and the left edge of the second inner film Polymerization, and further, a polymerization amount adjusting device capable of adjusting the polymerization width of each edge portion, and
The packaging film manufacturing apparatus for rice balls characterized by the above-mentioned. The polymerization amount adjusting device is:
A set of upper and lower two-stage rollers arranged at right and left sides inclined at a predetermined angle with respect to the traveling direction of the belt-shaped inner film,
The first inner film and the second inner film are passed through the lower side of the lower roller of the roller set and bent upward so as to pass over the upper roller of the roller group. The packaging film manufacturing apparatus for rice balls according to claim 1. Of the pair of left and right rollers, the roller set arranged on the right side where the second inner film is bridged is positioned above the roller group arranged on the left side where the first inner film is bridged,
On the lower side of the polymerization amount adjusting device in the first inner film and the second inner film, the left edge portion of the third inner film is located on the right edge portion of the first inner film. The packaging film manufacturing apparatus for rice balls according to claim 2, wherein the left edge portion of the second inner film is polymerized on the right edge portion of the film. The sheet-like food supply unit is
A sheet-shaped food storage housing that can hold the stored sheet-shaped food in a laminated state and that can sequentially take out the sheet-shaped food from the lower surface side;
A suction port formed at the top, and a suction housing disposed so as to be movable up and down below the sheet-like food storage housing;
A lowermost sheet-like food in the sheet-like food storage case adsorbed via the suction port when the suction case is raised, a transfer conveyor that is delivered when the suction case is lowered;
The packaging film manufacturing apparatus for onigiri of any one of Claims 1-3 characterized by the above-mentioned. The suction housing is
The suction port is formed, and a curved upper surface portion whose center portion bulges upward;
A flange that protrudes outward from the lower left and right ends of the upper surface,
The packaging film manufacturing apparatus for rice balls of Claim 4 characterized by the above-mentioned. A holding plate for receiving and holding the sheet-like food stored in a stacked state in the sheet-like food storage case from below;
The holding plate is provided with the sheet-like food left in the sheet-like food storage case when the suction case rises to adsorb and lower the lowermost sheet-like food in the sheet-like food storage case. The packaging film manufacturing apparatus for rice balls according to claim 4 or 5, wherein the packaging film manufacturing apparatus is disposed so as to be able to advance and retreat in a space formed between the bowl and the flange.

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