JP3726090B2 - Wrapping machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention includes, for example, a transfer screw device that transfers an inclusion material as a food material such as a bun bun, and a vane pump that supplies the inclusion material transferred by the transfer screw device to a polymerization nozzle. The present invention relates to a wrapping machine comprising a transfer screw device for transferring a skin material as a food material and a vane pump for feeding the skin material transferred by the transfer screw device to the polymerization nozzle, and more specifically, When the food material is transferred from each transfer screw device to each vane pump, the food material is suppressed from being kneaded, and the food dough is sufficiently fed to each vane pump to provide food between the vanes provided in each vane pump. The present invention relates to a wrapping machine capable of reliably filling materials.
[0002]
[Prior art]
The wrapping machine is provided with a plurality of transfer screw devices for individually transferring the inner packaging material as the food material supplied from the inner packaging material hopper and the outer skin material as the food material supplied from the outer skin hopper, And it is the structure provided with the vane pump as a metering pump which supplies the food material transferred from each said screw apparatus continuously to a superposition | polymerization nozzle.
[0003]
In the above configuration, there are various types such as a configuration in which the axis of the screw and the axis of the vane pump in the transfer screw device are parallel, and a configuration in which the above-mentioned axes are matched. There is also a configuration in which the transfer screw device includes a pair of screws.
[0004]
In the configuration in which the axis of the screw and the axis of the vane pump are parallel to each other in the transfer screw device, the two axes are arranged with a vertical difference.
[0005]
Furthermore, in a configuration in which the axis of the screw coincides with the axis of the vane pump, there is no difference in height between the axes, but the food material fed by the screw is supplied to the vane pump after changing the flow direction once. It is what is done.
[0006]
[Problems to be solved by the invention]
Therefore, in the conventional configuration, there is a problem in reducing the vertical dimension, and in the configuration in which the flow direction of the food material is temporarily changed, there is a problem that the food material is easily kneaded. Furthermore, in the conventional configuration, there is a case where the food material cannot be filled between the plurality of vanes provided in the vane pump, so that it should be further improved in order to stably send a certain amount of food material to the polymerization nozzle side. There's a problem.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of the above-described problems, and the invention according to claim 1 is an inner packaging material feeding for feeding an inner packaging material as a food material supplied from an inner packaging material hopper to a polymerization nozzle. Apparatus, an outer shell material feeding device that feeds the outer shell material as a food material supplied from the outer shell material hopper to the polymerization nozzle, and an outer side of the inner packaging material fed from the inner packaging material feeding device, A wrapping machine including the superposition nozzle that superposes the outer skin material fed from the outer skin material feeding device, wherein at least one of the inner packaging material feeding device or the outer skin material feeding device transports the food material. A transfer screw device, and a vane pump for feeding food material transferred by the transfer screw device to the polymerization nozzle, the transfer screw device including a horizontal screw, and the vane pump The screw has a straight rotating shaft, the screw transfer end is a free end and faces the inlet of the vane pump, and the inlet of the vane pump is the outer end of the vane provided in the vane pump. It is the structure provided with the food guide surface of the direction which touches the circular arc locus of the largest diameter drawn by.
[0008]
According to a second aspect of the present invention, in the wrapping machine according to the first aspect, the transfer screw device includes a pair of screws, and the rotation shaft of the vane pump is located at a position biased toward the polymerization nozzle side from an intermediate position of the pair of screws. And the food material reaching the polymerization nozzle is moved horizontally by arranging the screw, the vane pump, and the polymerization nozzle at substantially the same height.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
As shown schematically in FIG. 3, the packaging machine 1 according to the embodiment of the present invention includes a gantry 3, and an upper portion of the gantry 3 is supplied with an inner packaging material 5 as a food material. The inner packaging material hopper 7 is provided, and the outer skin material hopper 11 for supplying the outer skin material 9 as the food material is provided. An inner packaging material feeding device 15 for feeding the inner packaging material to the polymerization nozzle 13 is provided below the inner packaging material hopper 7, and the outer skin material is superposed on the lower side of the outer packaging material hopper 11. A skin material feeding device 17 for feeding to the nozzle 13 is provided. The superposition nozzle 13 is provided between the inner packaging material feeding device 15 and the outer skin material supply device 17.
[0010]
Below the superposition nozzle 13, there is provided an enveloping / cutting device 21 for enveloping and cutting the rod-shaped food material 19 in a state in which the outer covering material is superposed on the outside of the inner packaging material in the superposition nozzle 13. Below the cutting device 21, a conveyor device 25 is provided for sending the encapsulated food 23 encapsulated and cut by the enveloping / cutting device 21 to the next process.
[0011]
In addition, since the said covering and cutting apparatus 21 and the conveyor apparatus 25 may be a well-known structure, detailed description about the structure and effect | action is abbreviate | omitted.
[0012]
Referring to FIG. 1, the configuration of the inner packaging material feeding device 15 for feeding the inner packaging material and the configuration of the outer skin material feeding device 17 for feeding the outer skin material are apparent from FIG. Therefore, the configuration of the inner packaging material feeding device 15 will be described in detail. In the outer skin material feeding device 17, the same reference numerals are given to the components having the same functions, and the description is repeated. Is omitted.
[0013]
The inner packaging material feeding device 15 continuously transfers the inner packaging material transfer screw device 27 for transferring the inner packaging material supplied from the inner packaging material hopper 7, and quantitative determination of the inner packaging material transferred by the transfer screw device 27. In particular, a vane pump 29 as a metering pump for feeding to the superposition nozzle 13 is provided.
[0014]
The transfer screw device 27 includes a pair of screws 33 </ b> A and 33 </ b> B that are horizontally and rotatably provided in a screw housing 31. More specifically, the screw housing 31 includes a pair of grooves formed in a circular arc shape at the bottom, and the screws 33A and 33B are horizontally disposed in the pair of grooves. is there.
[0015]
The spiral directions of the spiral blades 35A and 35B in the pair of screws 33A and 33B are opposite to each other but formed at the same pitch, and when the screws 33A and 33B are rotated in opposite directions to each other, The contact position or the closest approach position P of the spiral blades 35A, 35B is configured to gradually shift in the front-rear direction parallel to the axis of each screw 33A, 33B. In other words, each of the screws 33A and 33B operates to synchronize rotation, thereby suppressing the kneading action on the supplied food material and transferring it to the vane pump 29 side.
[0016]
In order to rotate the screws 33A and 33B in opposite directions in synchronism with each other, the rotation shafts 36A and 36B, which are detachably engageable with the base ends of the screws 33A and 33B, have the same diameter. Gears 37A and 37B are provided. These gears 37A and 37B are provided with an appropriate control motor (not shown) such as a servo motor, and an appropriate rotation transmission mechanism (not shown) such as a gear train, a chain, and a belt. It is linked and connected through.
[0017]
Note that the transfer screw device 27 for the inner packaging material and the transfer screw device 27 for the outer packaging material are individually controlled and driven by separate control motors. However, in some cases, it is possible to adopt a configuration that interlocks with the same control motor.
[0018]
With the above configuration, when the control motor is appropriately driven, the screws 33A and 33B are synchronously rotated in opposite directions, and the food material is transferred toward the vane pump 29. At this time, since the closest approach position P of the spiral blades 35A, 35B in each screw 33A, 33B gradually moves toward the vane pump 29, the food material is smoothly transferred, and the spiral blades 35A, 35A, There is no kneading action due to the rotation of 35B, and transfer is performed while maintaining the properties of the food material well.
[0019]
The vane pump 29 includes a plurality of vanes that are movable in a radial direction, and includes a pump casing 39 connected to an end of the screw housing 31. The pump casing 39 includes the screw housing 31. An inlet 41 formed so as to widen toward the end 31 is formed. A rotating shaft 43 (see FIG. 2) is vertically and rotatably provided in the back part where the inlet 41 is narrowed. The rotary shafts 43 are interlocked and connected via an appropriate rotation transmission mechanism 45 such as a belt or a gear train so that the vane pumps 29 for the inner packaging material and the outer skin material rotate synchronously. It is linked to a control motor (not shown). Note that the vane pumps 29 for the inner packaging material and the outer packaging material can be independently rotated by separate control motors.
[0020]
The rotary shaft 43 is provided with a rotary cylinder 47 positioned in the pump casing 39 and at the same height as the screws 33A and 33B. The rotary cylinder 47 is provided vertically and integrally with the plurality of slits formed in the rotary cylinder 47. A plurality of vanes 49 are supported in the interior so as to be movable in a horizontal radial direction. The pump casing 39 is provided with an appropriately shaped cam 51 for moving the vanes 49 in the radial direction according to the rotation of the rotary cylinder 47. As is clear from FIG. 1, the axis of the rotary cylinder 47 is disposed at a position biased toward the superposition nozzle 13 with respect to the intermediate position between the pair of screws 33 </ b> A and 33 </ b> B. It is provided at the same height as the pair of screws 33A and 33B.
[0021]
Therefore, the path from the vane pump 29 to the polymerization nozzle 13 is shortened, and the food material transferred by the transfer screw device is rotated from the inlet 41 to the tip side of each vane 49 by rotating the rotary cylinder 47 in the direction of arrow A. Are gradually moved in the direction of the rotary cylinder 47 and filled between the vanes 49. Then, a fixed amount is discharged to the discharge port 53 and supplied to the superposition nozzle 13. With the above configuration, the capacity of the vane pump 29 can be easily increased by making the rotary cylinder 47 longer and the width of each vane 49 wider. In other words, since the capacity can be changed without changing the dimension of each vane 49 in the diameter direction, the moving path length in the vane pump can be kept constant even if the capacity changes.
[0022]
As described above, the rotating shaft 43 of the vane pump 29 is rotated so that the food material transferred by the transfer screw device 27 can be directly filled between the vanes without causing kneading or the like. The transfer ends 33E of the screws 33A and 33B are free ends without being supported by bearings or the like, and each transfer end 33E faces the inlet 41 of the vane pump 29, respectively. In addition, the inlet 41 includes a food guide surface 41G in a direction in contact with the arcuate path of the maximum diameter drawn by the vane 49 by rotation so that the food material is smoothly and sufficiently filled between the vanes 49. It is a configuration. In the arc trajectory portion of the maximum diameter, one measuring chamber (tub) surrounded and partitioned by each vane 49, the inner surface of the casing 29, and the outer peripheral surface of the rotary cylinder 47 is formed.
[0023]
Therefore, the food material transferred by the screws 33A and 33B is guided to the food guide surface 41G without being damaged by, for example, a bearing, and is sent from the front end side of the vane 49 in the vane pump 29 toward the rotary cylinder 47. Thus, the food material is directly transferred between the vanes 49, and the food material is not kneaded when transferred from the transfer screw device 27 to the vane pump 29.
[0024]
At this time, since the food guide surface 41G is formed in a direction in contact with the arc trajectory of the maximum diameter drawn by the vane 49, the food material is continuously filled until immediately before the weighing chamber (tub) is closed. It can be filled sufficiently. Immediately after the weighing chamber is closed, the weighing chamber is opened to the discharge port 53, and the filled food material is discharged. Therefore, the route through which the food material is moved in the vane pump 29 is short, and the kneading of the food material in the vane pump 29 is suppressed.
[0025]
The control motor in the transfer screw device 27 and the control motor of the vane pump 29 are individually controlled by an appropriate control device such as a computer to control the rotation ratio, so that the food material is placed between the vanes 49 in the vane pump 29. A sufficiently filled state can be obtained, and a fixed amount of food material is always continuously discharged from the vane pump 29. That is, the ratio between the rotation speed of the control motor of the transfer screw device 27 and the rotation speed of the control motor of the vane pump 29 can be arbitrarily controlled, and the rotation of each control motor can be controlled. The weighing chamber can be sufficiently filled with food material without applying pressure, and the production efficiency can be adjusted.
[0026]
The superposition nozzle 13 is configured in a double structure including an inner packaging material nozzle 55 for discharging an inner packaging material and an outer skin material nozzle 57 surrounding the inner packaging material nozzle 55, and an inner packaging material nozzle. 55 and the outer material nozzle 57 are connected to the vane pumps 29 for the inner packaging material and the outer material through the connecting pipe 59, respectively. The connecting pipe 59 is configured to be thicker and shorter than the conventional one so as not to suffer damage such as kneading when the food material passes.
[0027]
In the configuration as described above, when the food material is supplied to the inner packaging material hopper 7 and the outer skin material hopper 11 and each transfer screw device 27 is driven, the inner packaging material and the outer skin material are each pair of screws in each transfer screw device 27. It is transported horizontally in the direction of each vane pump 29 without being kneaded by 33A and 33B. Then, an equal amount of food material is sent from each transfer end 33E of each pair of screws 33A and 33B to the inlet 41 of the vane pump 29, and directly transferred between the vanes 49 in the vane pump 29 without being kneaded near the inlet 41. Is done.
[0028]
At this time, the inlet 41 has a divergent shape with a food guide surface 41G, so that the inlet for feeding the food material between the vanes 49 in the vane pump 29 can be widened and the food material can be smoothly guided. During the rotation of the vanes 49, the food material can be sufficiently filled between the vanes 49, and a constant amount of food material can be continuously discharged from the vane pump 29. The food material discharged from each vane pump 29 is superposed into a double structure at the superposition nozzle 13, and is wrapped and cut by the covering and cutting device 21. Is transferred to the next process.
[0029]
As already understood, since the screws 33A and 33B of the transfer screw device 27, the vane pump 29, and the superposition nozzle 13 are provided at the same height, the width of the vane 49 in the vane pump 29 is increased to increase the capacity. Even in such a case, the length in the radial direction of each vane 49 can be kept constant, and the depth in the radial direction of the measuring chamber does not change greatly, so that the food material can be quickly filled into the measuring chamber. It is not possible to cause underfilling.
[0030]
As described above, since the screws 33A, 33B, the vane pump 29, and the polymerization nozzle 13 are provided at substantially the same height, the food material reaching the polymerization nozzle 13 moves horizontally without moving up and down, and the vane pump 29 The connecting path between the vane pump 29 and the superposition nozzle 13 is shortened by disposing the center of the vane pump 29 toward the superposition nozzle 13 and is further thickened. The kneading | mixing of the foodstuff in the process which length becomes short and reaches the superposition | polymerization nozzle 13 is suppressed.
[0031]
【The invention's effect】
As can be understood from the above description, according to the present invention, when a food material is transferred from a transfer screw device equipped with a screw to a vane pump, the food material smoothly moves from the transfer screw device to the vane pump, and kneading is performed. The properties of the food material can be satisfactorily maintained without being received, and the food material can be sufficiently filled into the measuring chamber of the vane pump, so that the conventional problems as described above can be solved.
[0032]
In addition, since the screw of the transfer screw device, the vane pump, and the polymerization nozzle are provided at the same height, the overall configuration can be lowered. In this case, the depth in the radial direction of the weighing chamber can be kept constant, so that the filling of the food material into the weighing chamber can be performed quickly and easily. It can be carried out smoothly and does not cause insufficient filling.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view showing a main part according to an embodiment of the present invention, taken along line II in FIG. 3 schematically showing an overall configuration;
2 is an explanatory cross-sectional view taken along the line II-II in FIG. 1. FIG.
FIG. 3 is an explanatory diagram schematically showing an overall configuration.
[Explanation of symbols]
7 hopper for inner packaging material 11 hopper for outer skin material 13 superposition nozzle 15 inner packaging material feeding device 17 outer skin material feeding device 21 enveloping cutting device 25 conveyor device 27 transfer screw device 29 vane pump 33A, 33B screw 33E transfer end 39 pump casing 41 Entrance 49 Vane

Claims (2)

From the inner packaging material feeding device (15) for feeding the inner packaging material (5) as a food material supplied from the inner packaging material hopper (7) to the polymerization nozzle (13), and from the outer skin material hopper (11) An outer shell material feeding device (17) for feeding the outer shell material (9) as a food material to be supplied to the polymerization nozzle (13), and an inner packaging material (15) fed from the inner packaging material feeding device (15) 5) A wrapping machine provided with the superposition nozzle (13) for polymerizing the outer skin material (9) fed from the outer skin material feeding device (17) on the outside of 5), the inner packaging material feeding device (15) or at least one of the outer skin material feeding device (17) includes a transfer screw device for transferring a food material and a food material transferred by the transfer screw device to the polymerization nozzle. A vane pump, the transfer screw device being water The vane pump has a vertical rotating shaft, the transfer end of the screw is a free end and faces the inlet of the vane pump, and the inlet of the vane pump is the vane pump. A wrapping machine comprising a food guide surface in a direction in contact with an arc trajectory having a maximum diameter drawn by an outer end portion of a vane provided in the container. The wrapping machine according to claim 1, wherein the transfer screw device includes a pair of screws, and the rotation shaft of the vane pump is disposed at a position biased toward the polymerization nozzle side from an intermediate position of the pair of screws, and A wrapping machine characterized in that a screw, a vane pump, and a polymerization nozzle are arranged at substantially the same height, and the food material reaching the polymerization nozzle is moved horizontally.

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