JP5461891B2 - Wrapping machine - Google Patents

Description

  The present invention relates to a wrapping machine for producing a food product in which an inner packaging material such as bun is wrapped with an outer skin material such as bun dough, and more specifically, an inner packaging material and an outer husk as a food material. The present invention relates to a wrapping machine capable of reducing the load on each food material when feeding the material from each hopper to the polymerization nozzle.

  The wrapping machine includes a hopper that individually accommodates the inner packaging material and the outer skin material as food materials, and feeds the food materials fed by the screw conveyor provided at the bottom of each hopper to the polymerization nozzle by the vane pump. In this case, a food product in which the inner packaging material is appropriately wrapped with the outer skin material is manufactured by continuously producing a stick-shaped food product having the outer skin material on the peripheral surface of the inner packaging material, and cutting the stick food with a shutter device. Manufactured (for example, see Patent Documents 1 and 2)

JP-A-7-107957 Japanese Patent No. 3559222

  The wrapping machine described in Patent Document 1 includes a hopper that separately accommodates an inner packaging material and an outer skin material as food materials, and a pair of screws that are inclined so that the tip side is lowered at the bottom of each hopper A conveyor is rotatably provided. And in order to supply the foodstuff sent out by the said screw conveyor to a superposition | polymerization nozzle, the vane pump is provided between each said screw conveyor and the said superposition | polymerization nozzle.

  The said structure WHEREIN: There is one vane pump with respect to a pair of screw conveyor provided in the bottom part of each hopper, Between the front-end | tip part of the said screw conveyor and the said vane pump, the path | route (the inlet side of a vane pump becomes narrow rapidly ( (See FIG. 8 of Patent Document 1). Therefore, there is a problem that the food fed to the vane pump by the screw conveyor is subjected to a large load in the passage portion and the internal stress increases. In addition, there is a problem that the food material in the passage portion cannot be sent to the vane pump in the end, and the remaining amount is left.

  Also in the wrapping machine described in Patent Document 2, the vane pump is disposed at a position away from the front ends of the pair of screw conveyors, and the vane pump side is rapidly narrowed between the front end portion of the screw conveyor and the vane pump. Since the passage is formed, the packaging machine described in Patent Document 2 has the same problem as the packaging machine described in Patent Document 1.

The present invention has been made in view of the conventional problems as described above, and feeds the inner packaging material as the food material in the hopper for the inner packaging material to the polymerization nozzle by the vane pump and as the food material in the hopper for the outer skin material. A wrapping machine for continuously producing food products in which the inner packaging material is wrapped with the outer skin material by feeding the outer skin material to the superposition nozzle by a vane pump, and is freely rotatable at the bottom of each hopper An end housing provided with a taper-shaped housing having a taper-shaped concave portion corresponding to the taper portion on the inner surface thereof at a tip end side of a screw conveyor provided to the inner surface of the hopper. pump housing in a vane pump for provided integrally, to deliver ingredients that are transported by the screw conveyor to the polymerization nozzle Provided on the lower side of the tapered housing, the axis of the vane pump, provided with inclined relative to the axis of the screw conveyor in correspondence with the tapered portion, the tapered portion by the tapered portion of the screw conveyor The inlet provided on the upper side of the pump housing is also used as the outlet provided on the lower side of the tapered housing in order to immediately receive the food that tends to be compressed while being sent to the tip side of the vane pump. It is characterized by that.

  Further, in the wrapping machine, a pair of screw conveyors are rotatably provided at the bottom of the hopper, and the tip ends of the pair of screw conveyors are both formed in a tapered portion, and between the two tapered portions. The vane pump is arranged corresponding to the above.

  According to the present invention, since the food material being sent to the tip side of the screw conveyor by the screw conveyor is directly received by the vane pump, it is possible to suppress the food material from being rapidly compressed, and the screw conveyor and the vane pump. It is possible to reduce the amount of food remaining in between, and to solve the conventional problems as described above.

It is front explanatory drawing of the packaging machine which concerns on embodiment of this invention. It is explanatory drawing partially shown with the left view of the packaging machine. It is a plane explanatory view of the packaging machine. It is side sectional explanatory drawing which shows the relationship between a screw conveyor and a vane pump. It is a plane explanatory view same as the above.

  Referring to FIGS. 1 to 3, a packaging machine 1 according to an embodiment of the present invention includes a box-shaped main body frame 5 that is movable via a plurality of casters 3. Is provided with a hopper 7 for an inner packaging material for accommodating an inner packaging material as a food material and a hopper 9 for an outer skin material for accommodating an outer skin material as a food material. A pair of screw conveyors 11A and 11B are horizontally and rotatably provided at the bottoms of the hoppers 7 and 9 in order to feed out the ingredients in the hoppers 7 and 9, respectively.

  In order to feed the food material fed from the hoppers 7 and 9 by the screw conveyors 11A and 11B to the superposition nozzle 13 provided on the front surface of the main body frame 5, the screw conveyors 11A and 11B and the superposition are fed. Vane pumps 15A and 15B are provided between the nozzle 13 and the nozzle 13, respectively. Since the configuration of the superposition nozzle 13 and the vane pumps 15A and 15B may be a known configuration, a detailed description of the configuration of the superposition nozzle 13 and the vane pumps 15A and 15B will be omitted.

  The superposition nozzle 13 continuously manufactures a rod-shaped food material provided with an outer shell material as a food material fed from the vane pump 15B on a peripheral surface of an inner packaging material as a food material fed from the vane pump 15A. Under the superposition nozzle 13, a bar-shaped food material continuously discharged from the superposition nozzle 13 is cut into a state in which the inner packaging material is appropriately wrapped with a skin material. A device to be cut 17 is provided so as to be movable up and down. The enveloping / cutting device 17 has a plurality of shutter pieces for cutting the food material that can be freely opened and closed, and may be a known configuration, so that the enveloping / cutting device 17 is more detailed. The detailed explanation is omitted.

  An endless conveyor belt 19 for conveying the food product cut by the covering and cutting device 17 to the next process is provided below the covering and cutting device 17. And the belt up-and-down moving means 22 for moving up and down the part corresponding to the said covering and cutting apparatus 17 of the said conveyor belt 19 is provided. Since the configuration of the driving means of the conveyor belt 19 and the belt vertical movement means 22 may be a known configuration, a detailed description of the configuration of the conveyor belt 19 and the belt vertical movement means 22 is omitted. .

  In the state where the inner packaging material as the food material is accommodated in the hopper 7 and the outer skin material as the food material is accommodated in the hopper 9, the screw conveyors 11 </ b> A and 11 </ b> B are rotated to feed the food material in the hoppers 7 and 9. Then, the fed food is fed to the superposition nozzle 13 via the vane pumps 15A and 15B provided corresponding to the hoppers 7 and 9, respectively. Here, if there is a passage between the screw conveyors 11A and 11B and the vane pumps 15A and 15B, the vane pumps 15A and 15B side are sharply narrowed, the inner packaging material and the outer skin material as food are compressed in the passage. That is not desirable.

  Therefore, in the wrapping machine 1 according to the present embodiment, as shown in FIG. 4, a taper portion 21 having a screw diameter that gradually becomes smaller is provided on the front end side of each of the screw conveyors 11 </ b> A and 11 </ b> B. Each of the hoppers 7 and 9 is provided with an end housing 25 having a tapered recess 23 corresponding to each tapered portion 21 in each screw conveyor 11A and 11B on the inner surface. In other words, the end housing 25 has tapered housings 27A and 27B (see FIGS. 1 and 3) having tapered concave portions 23 corresponding to the tapered portions 21 of the screw conveyors 11A and 11B on the inner surface. It is the structure provided with.

  And the pump housings 29 of the vane pumps 15A and 15B are respectively arranged below the tapered housings 27A and 27B between the tapered housings 27A and 27B in the end housing 25. In the pump housing 29, a rotary cylinder 33 provided with a plurality of vanes 31 so as to be movable in a radial direction (radial direction) is rotatably provided. The sliding contact surface with which the vane 31 is in sliding contact with the pump housing 29 is formed as a cam surface for moving the vane 31 in the radial direction. Since the vane pumps 15A and 15B themselves have a general configuration, the description of the details of the drive mechanism for rotating the rotary cylinder 33 will be omitted.

  As shown in FIG. 4, the axis of the vane pumps 15A and 15B is inclined so that the tip ends of the screw conveyors 11A and 11B are higher than the horizontal screw conveyors 11A and 11B. And in order to receive directly the foodstuff currently being sent to the front end side of the said taper part 21 by the said taper part 21 in the said screw conveyor 11A, 11B in the said vane pump 15A, 15B, the upper side of the pump housing 29 in the vane pumps 15A, 15B The inlet 35 provided in the second housing is also used as an outlet provided below the tapered housings 27A and 27B in the end housing 25.

  Therefore, the inlet 35 is an inlet for food when viewed from the vane pumps 15A and 15B, and an outlet for food provided near the peripheral portions of the screw conveyors 11A and 11B when viewed from the screw conveyors 11A and 11B. In other words, the food material outlet from the hopper 7, 9 side, more specifically, the food material outlet from the end housing 25 and the inlets of the vane pumps 15A, 15B are directly connected. The outlets of the vane pumps 15A and 15B are provided on the lower side facing the polymerization nozzle 13, and the outlets and the polymerization nozzle 13 are pipes 37A and 37B inclined so that the polymerization nozzle 13 side is lowered. (See FIG. 1). That is, the inlets of the vane pumps 15A and 15B are close to the peripheral edge of the tapered portion 21 in the screw conveyors 11A and 11B.

  In the above-described configuration, as described above, when the screw conveyors 11A and 11B are rotationally driven and the ingredients in the hoppers 7 and 9 are sent to the tip end side of the screw conveyors 11A and 11B, the delivered ingredients are each screw conveyor. 11A and 11B tend to be compressed in the tapered recesses 23 of the tapered housings 27A and 27B in the end housing 25 while being sent to the distal end side at the portion of the tapered portion 21 provided on the distal end side. However, since outlets corresponding to the inlets 35 of the vane pumps 15A and 15B are provided below the tapered housings 27A and 27B, they are being sent to the front end side by the tapered portions 21 of the screw conveyors 11A and 11B. The foodstuff is directly received by the vane pumps 15A and 15B immediately from the outlet close to the peripheral edge of the tapered portion 21, and is not subjected to large compression.

  More specifically, the relationship between the tapered portion 21 on the front end side of the screw conveyors 11A and 11B and the tapered concave portion 23 of the end housing 25 is schematically shown in a plan view. In FIG. 5, the region where the food tends to be compressed is a region 39 indicated by hatching in FIG. The vane pumps 15A and 15B are disposed substantially below the center of the region 39.

  Therefore, when the food delivered by the screw conveyors 11A and 11B tends to be compressed in the region 39 (in the end housing 25), it is immediately received directly by the vane pumps 15A and 15B from the lower outlet. Thus, there is no application of large compression to the food, and an increase in the internal stress of the food can be suppressed. And since the foodstuff currently being sent to the front end side by the taper part 21 in screw conveyor 11A, 11B is directly received to vane pump 15A, 15B from the periphery of the said taper part 21 without giving an internal stress, screw conveyor The remaining amount of food between 11A and 11B and the vane pumps 15A and 15B can be extremely reduced as compared with the prior art, and the conventional problems as described above can be solved.

DESCRIPTION OF SYMBOLS 1 Packing machine 5 Main body frame 7,9 Hopper 11A, 11B Screw conveyor 13 Superposition nozzle 15A, 15B Vane pump 21 Tapered part 23 Tapered recessed part 25 End housing 27A, 27B Tapered housing 29 Pump housing 35 Inlet 37A, 37B Line 39 area

Claims (2)

The polymerization feed to the nozzle feeds, with at the outer skin material of the outer covering layer of the inner wrapper as ingredients in the hopper for inner wrapper as ingredients in the hopper for the outer covering layer with feeds to polymerization nozzle by the vane pump by the vane pump A taper that gradually reduces the screw diameter on the tip side of a screw conveyor that is rotatably provided at the bottom of each hopper, and is a wrapping machine for continuously producing food products that wraps the inner packaging material. A taper-shaped housing having a taper-shaped recess corresponding to the taper portion on the inner surface, and an end housing provided in each of the hoppers, and the food material transferred by the screw conveyor to the superposition nozzle a pump housing in a vane pump for feeding the lower side of the tapered housing, said vane pump Food in the heart, provided with inclined relative to the axis of the screw conveyor in correspondence with the tapered portion, tends to be compressed while being fed toward the distal end of the tapered portion by the tapered portion of the screw conveyor in order to accept immediately directly to said vane pump inlet provided on the upper side of the pump housing, encrusting machine, characterized in that are shared with an outlet provided on the lower side of the tapered housing. 2. The wrapping machine according to claim 1, wherein a pair of screw conveyors are rotatably provided at the bottom of the hopper, and the tip portions of the pair of screw conveyors are both formed in a taper portion. A wrapping machine in which the vane pump is arranged correspondingly between the parts .

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