JP7046437B2 - Packaging material wrapping device - Google Patents

Description

The present invention relates to a packaging material wrapping device.

A so-called series-wound rice ball, in which a sheet of seaweed is directly wrapped around a rice ball formed from cooked rice into a predetermined shape, is known. The device for producing the series-wound rice ball is composed of a seaweed supply device for supplying seaweed to the rice ball and a seaweed winding device for winding the seaweed around the rice ball.

In the seaweed wrapping device, the pasted seaweed is folded into a rice ball and wrapped. Examples of such a seaweed supply device include Patent Document 1 (Japanese Patent Laid-Open No. 06-125726), Patent Document 2 (Japanese Patent Laid-Open No. 2003-259827), and Patent Document 3 (Japanese Patent Laid-Open No. 2010-110220). The ones listed are known.

Here, in the seaweed wrapping device described in Patent Document 1, a block for folding the seaweed is provided, and the seaweed and rice balls are put into the block to wind the seaweed. Further, in the seaweed wrapping device described in Patent Documents 2 and 3, a wrapping mechanism for wrapping the seaweed is provided, and the wrapping mechanism winds the seaweed around the rice ball.

Japanese Unexamined Patent Publication No. 06-125726 Japanese Patent Application Laid-Open No. 2003-259827 Japanese Unexamined Patent Publication No. 2010-11220

However, in the above-mentioned seaweed wrapping device, the production capacity cannot be improved because the movement of rice balls to each process and the winding of rice balls in each process are independent.

Such a problem is not limited to the seaweed wrapping device, but also widely applies to a device for wrapping a sheet-shaped packaging material such as seaweed around a food material such as rice balls, that is, a packaging material wrapping device in general.

The present invention has been made from the above-mentioned technical background, and an object of the present invention is to provide a packaging material wrapping device capable of improving a production capacity.

In order to solve the above problems, the packaging material wrapping device of the present invention according to claim 1 has a turntable that intermittently rotates in the horizontal direction and is loaded with foodstuffs covered with sheet-shaped packaging materials. The turntable is formed at a predetermined interval in the circumferential direction of the turntable, and is formed on the turntable along at least two sides of the food placement area on which the added foodstuff is placed and the foodstuff placement area. It is provided with a plurality of through holes and is provided below the turntable so as to be able to move up and down from the through holes while moving in the circumferential direction with the rotation of the turntable, from the food input position to the food discharge position of the turntable. A first folding means that rises from the through hole between the holes, bends the packaging material upward along the foodstuff, and holds the foodstuff, and is arranged above the turntable and the first folding. A second folding means for bending the packaging material upwardly bent by the bending means onto the upper surface of the food material, and a second folding means arranged at the rear stage in the rotation direction of the turntable from the second bending means. It is characterized by having a third folding means for bending the packaging material bent on the upper surface of the food by the folding means to the side surface of the food.

In the invention according to claim 1, the packaging material wrapping device of the present invention according to claim 2 has the through holes formed at three points along each side of the food material placing area having a triangular shape. The second folding means is a movable folding portion that bends the packaging material from the first direction to the upper surface of the food material, and the packaging material from a second direction different from the first direction. It is characterized in that it is composed of a fixed bent portion that is bent on the upper surface of the food material.

The packaging material wrapping device of the present invention according to claim 3 is the invention according to claim 1 or 2, wherein the third folding means is the food material after bending the packaging material to the side surface of the food material. Is characterized by being slid and discharged from the turntable to the next process.

The packaging material wrapping device of the present invention according to claim 4 is the invention according to claim 3, wherein the third bending means changes the direction of the food material after discharging the food material from the turntable. It is characterized by doing.

The packaging material wrapping device of the present invention according to claim 5 is the first bending means, the second folding means and the said in the invention according to any one of claims 1 to 4. The third folding means is characterized by comprising a roller that bends the packaging material while rotating.

The packaging material wrapping device of the present invention according to claim 6 is the invention according to claim 2, wherein the fixed bent portion is swingably attached to a fixing member and the fixing member. It is characterized by comprising a swing member and a roller attached to the swing member and bending the packaging material while rotating.

The packaging material wrapping device of the present invention according to claim 7 has the roller attached to the bearing supporting the roller with looseness in the radial direction in the invention according to claim 5 or 6. It is characterized by.

The packaging material wrapping device of the present invention according to claim 8 is characterized in that, in the invention according to claim 7, a weight is built in the roller of the second bending means. ..

The packaging material wrapping device of the present invention according to claim 9 has a plurality of rollers of the second bending means arranged in the length direction in the invention according to claim 7 or 8. , Characterized by that.

The packaging material wrapping device of the present invention according to claim 10 is the invention according to any one of claims 7 to 9, wherein the roller of the third bending means has a plurality of stages in the vertical direction. It is characterized by being arranged as.

The packaging material wrapping device of the present invention according to claim 11 has a weight built in the roller of the third bending means in the invention according to any one of claims 7 to 10. It is characterized by the fact that it is.

The packaging material wrapping device of the present invention according to claim 12 is the first bending means according to the rotation of the turntable in the invention according to any one of claims 1 to 11. Is raised and lowered from below the through hole, and the cam portion in which a step of the cam ridge is formed at a position corresponding to the food input position and a position corresponding to the food discharge position, and the first bending means are described. Further, it has an ascending means for raising the first bending means directly above by the step at the food feeding position, and a lowering means for lowering the first bending means directly below by the step at the food discharging position. The ascending means raises the first bending means after the foodstuff is charged and before the turntable starts to rotate, and the lowering means is the packaging by the third folding means. It is characterized in that the first bending means is lowered after the material is bent and before the turntable starts to rotate.

According to the present invention, the movement of the food material by the rotation of the turntable and the bending of the packaging material by the first bending means are performed at the same time, so that the food material is put in and the packaging material is wound. The number of times the turntable is stopped can be reduced, and the production capacity can be improved.

It is a perspective view which shows the seaweed rice ball manufacturing apparatus provided with the seaweed wrapping apparatus which is one Embodiment of this invention. It is a plan view of FIG. It is a top view of the turntable which comprises the seaweed wrapping apparatus which is one Embodiment of this invention. FIG. 3 is a perspective view showing a turntable and a first bent portion of FIG. It is a perspective view which shows the structure around the roller which constitutes the 1st bending part. It is a perspective view which shows the state which the rice ball pasted with seaweed is placed on the turntable. It is a perspective view which shows the state which the roller of the 1st bent part rises and bends the seaweed upward along a rice ball. It is explanatory drawing which shows the relationship between the roller of the 1st bending part and a bearing. It is a perspective view which shows the turntable of FIG. 3 and each bent part. It is sectional drawing which shows the fixed type folding part of the 2nd folding part. (A) and (b) are explanatory views showing the movement of the fixed folding portion of the second folding portion when the seaweed is wrapped around the rice ball. (A) is an explanatory diagram showing the movement of the fixed bent part when the seaweed is correctly wrapped around the rice ball, and (b) shows the movement of the fixed bent part when the seaweed is distorted and wrapped around the rice ball. It is explanatory drawing. FIG. 3 is a perspective view showing each bent portion provided with a turntable of FIG. 3 and a fixed bent portion as a modification. It is a perspective view which shows the fixed bending part as a modification. It is a side view of the fixed bending part of FIG. (A) and (b) are explanatory views showing the movement of the fixed bent portion of FIG. 14 when the seaweed is wrapped around the rice ball. It is explanatory drawing which shows the movement of the fixed bending part of FIG. 14 when the seaweed is wrapped around a rice ball. It is a perspective view which shows the 3rd folding part and a turntable. It is a perspective view which shows the state which the 3rd bent part descended to the turntable. It is explanatory drawing which shows the bending of the seaweed by the 3rd bending part. It is a perspective view which shows the state which the rice ball is ejected from a turntable by a 3rd bent part. It is a perspective view which shows the state which the direction of the rice ball discharged from a turntable is changed in the 3rd bending part. It is a perspective view which shows the 1st folding part and the lifting lift before raising a 1st folding part. It is a perspective view which shows the 1st folding part and the lifting lift after raising the 1st folding part. It is a perspective view which shows the positional relationship between a rice ball and a roller before raising a 1st bent part. It is a perspective view which shows the positional relationship between a rice ball and a roller after raising a 1st bent part. It is a perspective view which shows the 1st bending part and the lowering lift before lowering the 1st bending part. It is a perspective view which shows the 1st bending part and the lowering lift after lowering the 1st bending part. It is a perspective view which shows the positional relationship between a rice ball and a roller before lowering a 1st bent part. It is a perspective view which shows the positional relationship between a rice ball and a roller after lowering a 1st bent part.

Hereinafter, embodiments as an example of the present invention will be described in detail with reference to the drawings. In addition, in the drawing for demonstrating the embodiment, the same components are in principle the same reference numerals, and the repeated description thereof will be omitted.

FIG. 1 is a perspective view showing a seaweed-wrapping nori-wrapping device provided with a seaweed-wrapping device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a seaweed-wrapping device according to an embodiment of the present invention. A plan view of the turntable constituting the attachment device, FIG. 4 is a perspective view showing the turntable of FIG. 3 and the first bent portion, and FIG. 5 is a perspective view showing the configuration around the rollers constituting the first bent portion. FIG. 6 is a perspective view showing a state in which the nori seaweed is placed on the turntable, and FIG. 7 is a view in which the roller of the first bent portion rises and bends the seaweed upward along the seaweed. FIG. 8 is an explanatory view showing the relationship between the roller and the bearing of the first bent portion, FIG. 9 is a perspective view showing the turntable of FIG. 3 and each bent portion, and FIG. 2 is a cross-sectional view showing the fixed bent portion of the bent portion, and FIGS. 11 (a) and 11 (b) are explanatory views showing the movement of the fixed bent portion of the second bent portion when the seaweed is wrapped around the seaweed. 12 (a) is an explanatory diagram showing the movement of the fixed folding part when the seaweed is correctly wrapped around the omelet, and FIG. 12 (b) is the fixed fold when the seaweed is distorted and wrapped around the omelet. An explanatory view showing the movement of the portion, FIG. 13 is a perspective view showing each bent portion provided with the turntable of FIG. 3 and a fixed bent portion as a modified example, and FIG. 14 is a fixed bent portion as a modified example. 15 is a side view of the fixed bent portion of FIG. 14, and FIGS. 16 (a) and 16 (b) are explanatory views showing the movement of the fixed bent portion of FIG. 14 when the seaweed is wrapped around the seaweed. FIG. 17 is an explanatory view showing the movement of the fixed folding portion of FIG. 14 when the seaweed is wrapped around the seaweed, FIG. 18 is a perspective view showing the third folding portion and the turntable, and FIG. 19 is the third. FIG. 20 is a perspective view showing a state in which the bent portion of Nori seaweed is lowered to the turntable, FIG. 20 is an explanatory view showing the bending of seaweed by the third bent portion, and FIG. 22 is a perspective view showing a state in which the direction of the sushi discharged from the turntable is changed at the third bent portion, and FIG. 23 is a perspective view showing a state in which the direction of the sushi discharged from the turntable is changed at the third bent portion. 24 is a perspective view showing the first bent portion and the ascending lift, FIG. 24 is a perspective view showing the first bent portion and the ascending lift after raising the first bent portion, and FIG. 25 is a perspective view showing the first bent portion and the ascending lift. 1 is a perspective view showing the positional relationship between the sushi and the roller before raising the bent portion, and FIG. 26 is a perspective view showing the positional relationship between the sushi and the roller after raising the first bent portion. 27 is a perspective view showing the first bent portion and the lowering lift before lowering the first bent portion, and FIG. 28 is the first A perspective view showing the first bent portion and the lowering lift after the bent portion is lowered, and FIG. 29 is a perspective view showing the positional relationship between the diaper and the roller before the first bent portion is lowered. FIG. 30 is a perspective view showing the positional relationship between the sushi and the roller after the first bent portion is lowered.

As shown in FIGS. 1 and 2, the seaweed-wrapped rice ball manufacturing apparatus of the present embodiment includes seaweed L (FIG. 6, FIG. 7 and the like) which is a sheet-shaped packaging material wrapped around rice ball R (FIG. 6, FIG. 6. The seaweed supply device M1 for supplying (6, FIG. 7, etc.) and the seaweed R molded into a predetermined shape are taken in and aligned, and the seaweed L supplied from the seaweed supply device M1 is attached to the bottom surface of the rice ball R (rice ball R). A rice ball supply device M2 (laid on the bottom surface of the rice ball) and a seaweed wrapping device (packaging material wrapping device) M3 for winding the pasted seaweed L around the rice ball R are provided. Further, an input unit 1 is provided in which the operator sets the operation of the seaweed-wrapped rice ball manufacturing apparatus.

A rice ball forming device (not shown) that forms rice balls into a rice ball R having a predetermined shape and sends the rice balls to the rice ball supply device M2 is connected to the seaweed-wrapped rice ball manufacturing apparatus. However, when the worker brings the rice ball R directly to the rice ball supply device M2, the cooked rice molding device is not connected.

In FIG. 2, the seaweed wrapping device M3 has a circular turntable 30 that is intermittently rotated in the horizontal direction and a rice ball R having a seaweed L attached to the bottom surface is inserted, and the turntable 30 is rotated in accordance with the rotation of the turntable 30. It is provided with a folding portion (folding means) for performing a predetermined operation to bend the seaweed L step by step and winding it around the rice ball R. The folding part includes a first folding part (first folding means) 31, a second folding part (second folding means) 32, and a third folding part (third folding means). Means) 33, and the seaweed L is wound around the rice ball R by executing the operation described later. Further, the seaweed wrapping device M3 is provided with a conveyor 34 for transporting the rice ball R around which the seaweed L is wound and discharged from the turntable 30 to the next process.

As shown in FIG. 3, the rice ball R (that is, the rice ball R on which the seaweed L is attached to the bottom surface) is placed on the turntable 30 at a predetermined interval in the circumferential direction. A storage area (food storage area) S is formed. Further, the turntable 30 is formed with three through holes 30a along each side of the mounting area S.

In the present embodiment, the mounting area S has a triangular shape corresponding to the rice ball R formed into a triangle, and is formed at six locations on the turntable 30, but the mounting area S is formed. The shape of the shape may be other than a triangle, and the number formed may not be six. Further, the through hole 30a does not have to be formed along all sides of the mounting region S, but may be formed along at least two sides of the mounting region S. Therefore, unlike the present embodiment, it does not have to be formed at three locations so as to surround the mounting area S.

As shown in FIG. 4, a first bent portion 31 is arranged below the turntable 30. The first bent portions 31 are arranged at six positions corresponding to the mounting areas S formed on the turntable 30, and are fixed to the rotating shaft 30b of the turntable 30 and are fixed to the rotating shaft 30b of the turntable 30 as the turntable 30 rotates. It is designed to move in the circumferential direction.

At the upper part of the first bent portion 31, three rollers 31a are provided so as to surround the rice ball R. As shown in FIG. 5, these rollers 31a are supported by bearings 31d formed at the tips of three bases 31c fixed vertically upward with respect to the horizontal plate-shaped pedestal 31b. It is provided so that it can rotate freely. Further, as shown in FIG. 4, the first bent portion 31 travels on the annular cam portion 35 by the rotation of the roller 31e provided at the lower portion. As a result, the first bent portion 31 moves in the circumferential direction of the turntable 30 while the three rollers 31a move up and down from the three through holes 30a, respectively.

As a result, as shown in FIG. 6, the rice ball R to which the seaweed L is pasted on the bottom surface is placed in the mounting area S (FIG. 3), and the first bent portion 31 (specifically, the first fold). When the roller 31a) of the curved portion 31 rises from the through hole 30a, as shown in FIG. 7, the roller 31a rises while rotating along the side surface of the rice ball R, and bends the seaweed L upward along the rice ball R. .. Therefore, since the load applied to the seaweed L at the time of bending is reduced by the rotation of the roller 31a, it is possible to prevent the seaweed L from cracking at the time of bending.

Further, in the present embodiment, as shown in FIG. 8, the inner diameter of the bearing hole 31da formed in the bearing 31d is set to be larger than the outer diameter of the shaft core 31ab of the roller 31a. That is, the roller 31a is attached to the bearing 31d supporting the roller 31a with a slack in the radial direction.

As a result, the roller 31a can move following the rice ball R, so that the seaweed L can be wound around the rice ball R without being affected by the variation in the size and shape of the rice ball R. Further, since the load applied to the seaweed L is further reduced, it is possible to more effectively prevent the seaweed L from cracking at the time of folding.

Further, since the roller 31a of the first bent portion 31 moves up and down from the through hole 30a formed along each side of the mounting area S, the mounting area S having a triangular shape is formed. The corners are open. Therefore, the seaweed L can be bent without being affected by the size of the seaweed L.

However, the first bent portion 31 may not be provided with the roller 31a, and for example, the seaweed L may be bent by a member having a curved top. Further, even when the roller 31a is provided, it does not have to be loosely attached to the bearing 31d in the radial direction as in the present embodiment.

As shown in FIG. 4, the cam ridge of the cam portion 35 is located at the rice ball R (rice ball R with seaweed L attached to the bottom surface) on the turntable 30 from the feeding position (food filling position) P1 to the discharging position (food discharging position). ) It is high up to P2 (cam mountain in the portion indicated by reference numeral 35a), and is low in other areas (cam peak in the portion indicated by reference numeral 35b). Therefore, the first bent portion 31 rises from the through hole 30a between the charging position P1 and the discharging position P2, and holds the rice ball R during that period. This prevents the rice ball R from falling off the turntable 30 due to the centrifugal force caused by the rotation of the turntable 30.

A step is formed between the cam ridge 35a and the cam ridge 35b at the position corresponding to the insertion position P1 and the position corresponding to the discharge position P2. Details on this point will be described later.

As shown in FIG. 9, a second bent portion 32 is arranged above the turntable 30 at a position rotated by a predetermined angle from the loading position P1.

The second bent portion 32 is for bending a portion of the seaweed L that is bent upward by the first bent portion 31 above the upper surface of the rice ball R to the upper surface of the rice ball R. In the form of, it is composed of a movable bent portion 32-1 and a fixed bent portion 32-2. As shown in FIG. 6 described above, since the seaweed L is placed on the turntable 30 across the two through holes 30a, as shown in FIG. 7, the first bent portion 31 Both sides of the seaweed L are bent upward by the roller 31a. Therefore, a movable bent portion 32-1 for bending one side of the seaweed L (on the right side when viewed from the center of rotation of the turntable 30) is provided, and then a fixed bent portion 32-for bending the other side. 2 is provided.

The movable bending portion 32-1 descends when the rotation of the turntable 30 stops, and then moves slightly horizontally along the rotation direction of the turntable 30, so that the movable bending portion 32-1 moves and changes its position while changing its position. One side of the seaweed L is bent from a predetermined direction (first direction) to the upper surface of the rice ball R. Further, the fixed bent portion 32-2 changes its position by the other side of the seaweed L coming into contact with the fixed bent portion 32-2 during the operation in which the rice ball R is sent to the third bent portion 33 by the rotation of the turntable 30. Instead, the other side is bent to the upper surface of the rice ball R from a direction (second direction) different from that of the movable bent portion 32-1.

Here, the second bent portion 32 (movable bent portion 32-1, fixed bent portion 32-2) also loosens in the radial direction with respect to the bearing, similarly to the first bent portion 31. A roller 32a is provided (in the fixed bent portion 32-2, the roller 32a is held and provided by the fixed block (fixing member) 32b) to prevent the seaweed L from cracking and to prevent the size and shape of the rice ball R. It realizes the winding of seaweed L that is not affected by the variation.

Further, as shown in FIG. 10, the roller 32a of the fixed bending portion 32-2 has a weight 32ab built in with respect to the resin exterior. Further, although not shown, the roller 32a of the movable bending portion 32-1 also has a built-in weight 32ab. By incorporating the weight 32ab in this way, the roller 32a becomes heavier and the followability to the upper surface of the rice ball R is improved, and the influence of the variation in the size and shape of the rice ball R is further reduced.

Further, as shown in FIG. 10, a plurality of rollers 32a of the fixed bending portion 32-2 are arranged in the length direction (two in the present embodiment). If the roller 32a is divided into the structure in this way, the followability of the roller 32a to the upper surface of the rice ball R is further improved, so that the influence of the rice ball R on the variation is further reduced.

However, the second bent portion 32 may be composed of only one of the movable bent portion 32-1 and the fixed bent portion 32-2. That is, depending on the direction in which the seaweed L is wound around the rice ball R, only one side of the seaweed L is bent upward. In such a case, it is possible to form the second bent portion 32 only by the movable bent portion 32-1 or the fixed bent portion 32-2.

Further, if the operation direction of the movable bent portion 32-1 can be switched, a plurality of ways of winding the seaweed L can be realized, so that the convenience of the device is improved.

The roller 32a may not be provided in the second bent portion 32 either. Further, even when the roller 32a is provided, it may not be attached to the bearing with a looseness in the radial direction. Further, the rollers 32a may not have a built-in weight 32ab, and a plurality of weights 32ab may not be arranged in the length direction.

Here, as shown in FIG. 9, when the roller 32a is provided on the fixed block 32b in the fixed bending portion 32-2, the rotation of the turntable 30 is performed as shown in FIGS. 11A and 11B. As a result, the rice ball R moves in the direction indicated by the arrow in the figure, and along with this, the roller 32a rotates and rides on the upper surface of the rice ball R, and bends the seaweed L onto the upper surface of the rice ball R.

At this time, if the roller 32a rides on the upper surface of the rice ball R while maintaining the horizontal state, the seaweed L is neatly bent along the edge of the rice ball R as shown in FIG. 12 (a). However, if the edge of the rice ball R and the unevenness of the upper surface are large, as shown in FIG. 12B, the roller 32a may jump up to the upper surface of the rice ball R in an inclined state. Then, the seaweed L is bent so as to be distorted (distorted) at the edge of the rice ball R, and as a result, the seaweed L is not neatly wrapped around the rice ball R, and the commercial value is lowered.

Therefore, in order to prevent such a phenomenon in the fixed bent portion 32-2, the roller 32 is not directly attached to the fixed block 32b, but is oscillated to the fixed block 32b as shown in FIG. The block (swing member) 32c may be swingably attached, and the roller 32a may be attached to the swing block 32c.

A perspective view of such a fixed bending portion 32-2 is shown in FIG. 14, and a side view is shown in FIG. 15, respectively. As shown in these drawings, since the swing block 32c swings with respect to the fixed block 32b, the roller 32a moves so as to draw an arc-shaped locus around the swing fulcrum of the swing block 32c.

According to such a fixed bending portion 32-2, as shown in FIGS. 16A and 16B, when the rice ball R moves in the direction indicated by the arrow in the figure due to the rotation of the turntable 30, the rice ball R moves in the direction indicated by the arrow in the figure. The rocking block 32c swings and the roller 32a moves upward in an arc shape, and the roller 32a rides on the upper surface of the rice ball R while rotating, and bends the seaweed L onto the upper surface of the rice ball R.

Therefore, as shown in FIG. 17, even if the edge of the rice ball R and the unevenness of the upper surface are large, the roller 32a rides on the upper surface of the rice ball R while maintaining the horizontal state, and the seaweed L is beautiful along the edge of the rice ball R. Can be bent into. Therefore, the seaweed L is not neatly wrapped around the rice ball R and the commercial value does not decrease. Further, since the roller 32a is attached to the swing block 32c, the followability of the roller 32a to the upper surface of the rice ball R is improved, and the seaweed L can be pressed against the rice ball R.

A third bent portion 33 is arranged at the discharge position P2, which is later in the rotation direction of the turntable 30 than the second bent portion 32. The third bent portion 33 descends when the rotation of the turntable 30 stops, and protrudes laterally from the rice ball R of the seaweed L bent on the upper surface of the rice ball R at the second bent portion 32. Bend the rice ball to the side of the rice ball R.

Similar to the first bent portion 31, the third bent portion 33 is also provided with a roller 33a so as to surround the rice ball R. That is, as shown in FIG. 18, the three bases 33c are vertically fixed downward to the horizontal plate-shaped pedestal 33b. A plurality of bearings (two places in the present embodiment) are formed on the base 33c, and the rollers 33a are supported by these bearings and have a plurality of stages in the vertical direction (two stages in the present embodiment). It is placed in and is rotatable.

As a result, as shown in FIG. 18, when the rice ball R with the seaweed L bent on the upper surface is sent from the second bent portion 32 and the rotation of the turntable 30 is stopped, as shown in FIG. The bent portion 33 of 3 descends. As a result, the roller 33a descends while rotating along the side surface of the rice ball R, and bends the seaweed L laterally protruding from the rice ball R to the side surface.

Here, as described above, the rollers 33a are arranged in a plurality of stages in the vertical direction. As a result, as shown in FIG. 20, when the third bent portion 33 is lowered, the portion of the seaweed L that hits the edge of the rice ball R (the portion indicated by the reference numeral Le) is bent a plurality of times by the roller 33a. Therefore, it is possible to reliably bend the seaweed L in a portion having a small margin by giving a folding habit.

The roller 33a provided in the third bent portion 33 is also attached to the bearing with a looseness in the radial direction, like the first bent portion 31 and the second bent portion 32, and is made of seaweed. It prevents the L from cracking and realizes the winding of the seaweed L that is not affected by the variation in the size and shape of the rice ball R. Further, the roller 33a provided in the third bent portion 33 also has a weight (not shown) built in the resin exterior as in the roller 32a of the second bent portion 32, and the rice ball R The followability to the aspect of is improved.

However, the roller 33a may not be provided in the third bent portion 33 either. Further, even when the roller 33a is provided, it may not be attached to the bearing with a looseness in the radial direction. Further, the rollers 33a may not be arranged in a plurality of stages in the vertical direction, and may not have a built-in weight.

By the way, in the present embodiment, as shown in FIGS. 21 and 22, when the seaweed L is bent to the side surface of the rice ball R (FIG. 21), the third bent portion 33 slides the rice ball R to move. It is placed on a conveyor 34 and discharged from the turntable 30 to the next process. Further, as shown in FIG. 22, the third bent portion 33 changes the direction of the rice ball R after the rice ball R is placed on the conveyor 34, that is, after being discharged from the turntable 30.

Depending on the direction of acceptance of the rice ball R in the next step, it may not be necessary to change the direction of the rice ball R. At this time, it goes without saying that the direction of the rice ball R is not changed by the third bent portion 33.

In this way, if the third bent portion 33 also discharges from the turntable 30, it is not necessary to separately provide a discharge mechanism for the rice ball R.

However, it is not necessary for the third bent portion 33 to discharge the rice ball R or change the direction of the rice ball R.

Here, as shown in FIG. 4, and as described above, the cam portion 35 that raises and lowers the first bent portion 31 with the rotation of the turntable 30 has a position corresponding to the insertion position P1 and discharge. A step is formed between the cam ridge 35a and the cam ridge 35b at the position corresponding to the position P2. Then, as shown in the figure, the ascending lift (elevating means) 36 is located at the stepped portion at the position corresponding to the charging position P1, and the descending lift (lowering means) 37 is provided at the stepped portion at the position corresponding to the discharging position P2. , Each is provided.

As shown in FIGS. 23 and 24, the ascending lift 36 includes a lift plate 36a on which the roller 31e of the first bent portion 31 traveling on the cam ridge 35b is mounted, and a lift plate 36a on which the roller 31e is mounted. Is provided with a lifter 36b that lifts the first bent portion 31 and raises the first bent portion 31 directly upward by the amount of the above-mentioned step at the insertion position P1. As a result, the first bent portion 31 that has traveled on the low cam mountain 35b is raised directly above by the ascending lift 36 at the step portion at the position corresponding to the insertion position P1 and is delivered to the high cam mountain 35a. .. The ascending lift 36 has a first bent portion 31 after the rice ball R having the seaweed L attached to the bottom surface is put into the mounting area S and before the turntable 30 starts rotating. Raise it.

An actuator such as a cylinder or a motor is applied to the lifter 36b and the lifter 37b described later, but other than that may be used.

When the roller 31a of the first bending portion 31 gradually rises from the through hole 30a with the rotation of the turntable 30, the roller 31a holds the rice ball R only after the turntable 30 has rotated to some extent. It doesn't become like that. However, in the present embodiment, since the first bent portion 31 rises directly above at the charging position P1, as shown in FIG. 25, the rice ball R to which the seaweed L is attached is placed on the bottom surface S. After the roller 31a of the first bent portion 31 that had been lowered into the through hole 30a to be thrown into the through hole 30a rises from the through hole 30a by a step and holds the rice ball R as shown in FIG. 26. The rotation of the turntable 30 starts.

Therefore, even if the turntable 30 is started to rotate at a steep speed, the rice ball R does not fall off from the turntable 30 due to centrifugal force, so that the rotation speed of the turntable 30 can be increased and the production efficiency is improved. Can be raised.

As shown in FIGS. 27 and 28, the descending lift 37 includes a lift plate 37a on which the roller 31e of the first bent portion 31 traveling on the cam ridge 35a is mounted, and a lift on which the roller 31e is mounted. It is provided with a lifter 37b that lowers the plate 37a and lowers the first bent portion 31 directly below by the amount of the above-mentioned step at the discharge position P2. As a result, the first bent portion 31 that has traveled on the high cam ridge 35a is lowered directly below by the descending lift 37 at the stepped portion at the position corresponding to the discharge position P2, and is delivered to the low cam ridge 35b. The lowering lift 37 lowers the first bent portion 31 after the seaweed L is bent by the third bent portion 33 and before the turntable 30 starts rotating.

When the roller 31a of the first bent portion 31 gradually descends into the through hole 30a, in order to completely lower the roller 31a at the discharge position P2, the roller 31a is lowered from the rotation of the turntable 30. Must be started. At that time, the rotation speed of the turntable 30 must be gradually reduced so that the rice ball R does not fall off the turntable 30 due to centrifugal force.

However, in the present embodiment, since the first bent portion 31 descends directly below at the discharge position P2, as shown in FIG. 29, the rice ball R around which the seaweed L is wrapped reaches the discharge position P2 and turns. The roller 31a is raised from the through hole 30a until the rotation of the table 30 is stopped, and then the first bent portion 31 is lowered by the lowering lift 37, and the roller 31a is made through the through hole as shown in FIG. Lower within 30a.

Therefore, it is not necessary to gradually reduce the rotation speed of the turntable 30, and as a result, the rotation speed of the turntable 30 can be increased and the production efficiency can be increased.

Next, the operation of wrapping the seaweed L with respect to the rice ball R by the seaweed wrapping device M3 of the present embodiment will be described.

First, as shown in FIG. 6, when the rice ball R having the seaweed L attached to the bottom surface is thrown into the mounting area S of the stopped turntable 30, the ascending lift 36 causes the first bent portion 31. Roller 31a rises from the through hole 30a to hold the rice ball R. Then, when the turntable 30 starts to rotate, as shown in FIG. 7, the roller 31a rises while rotating along the side surface of the rice ball R, and bends the seaweed L upward along the rice ball R. The roller 31a holds the rice ball R at a position raised from the through hole 30a between the insertion position P1 and the discharge position P2 of the turntable 30.

Then, the turntable 30 rotates by a predetermined angle, and stops when the rice ball R reaches the position where the second bent portion 32 is provided. Here, the movable bent portion 32-1 and the fixed bent portion 32-2 shown in FIG. 9 bend the seaweed L bent upward at the first bent portion 31 onto the upper surface of the rice ball R. At this time, the roller 31a of the first bent portion 31 is slightly lowered so as not to interfere with the second bent portion 32.

Next, the turntable 30 is further rotated by a predetermined angle, and stops when the rice ball R reaches the discharge position P2 provided with the third bent portion 33. Then, the roller 31a of the first bent portion 31 is lowered into the through hole 30a by the lowering lift 37 to release the holding of the rice ball R.

Then, the third bent portion 33 bends the laterally protruding portion of the seaweed L bent on the upper surface of the rice ball R at the second bent portion 32 to the side surface of the rice ball R, and then the rice ball R. Is placed on the conveyor 34 and discharged from the turntable 30 to the next process.

As described above, according to the present embodiment, the rice ball R to which the seaweed L is attached on the bottom surface is placed on the turntable 30, and the first bent portion 31 paired with the turntable 30 is the turntable. During the rotation of 30, the seaweed L is bent upward, and at the same time, the rotation of the turntable 30 causes the second bent portion 32 and the third bent portion 33 to bend the seaweed L to the upper surface and the side surface. It is supposed to be done. That is, the movement of the rice ball R due to the rotation of the turntable 30 and the bending of the seaweed L by the first bent portion 31 are performed at the same time.

Therefore, the number of stops of the turntable 30 until the rice ball R is thrown in and the seaweed L is wound can be reduced, and the production capacity can be improved.

Although the invention made by the present inventor has been specifically described above based on the embodiments, the embodiments disclosed in the present specification are exemplary in all respects and are limited to the disclosed technology. is not it. That is, the technical scope of the present invention is not limitedly interpreted based on the description in the above-described embodiment, but should be interpreted in accordance with the description of the scope of claims, and the scope of claims. All changes are included as long as they do not deviate from the stated technology and the equivalent technology and the gist of the claims.

For example, in the seaweed wrapping device M3 of the present embodiment, the ascending lift 36 and the descending lift 37 are provided, but these may not be provided or only one of the lifts may be provided. ..

Further, the rice ball R does not have to be triangular, and can have various shapes such as a barrel shape and a spherical shape.

In the above description, the case where the packaging material wrapping device of the present invention is applied to the seaweed wrapping device that wraps the seaweed, which is the packaging material, around the rice ball, which is the food material, is shown. A wide variety of things can be applied, not limited to. As an example, it can be applied to a device for wrapping kelp, which is a packaging material, around rice balls, which is a food material.

30 Turntable 30a Through hole 30b Rotating shaft 31 First bending portion (first bending means)
31a Roller 31ab Shaft core 31b Pedestal 31c Base 31d Bearing 31da Bearing hole 31e Roller 32 Second bending part (second bending means)
32-1 Movable bent part 32-2 Fixed bent part 32a Roller 32ab Weight 32b Fixed block (fixing member)
32c rocking block (rocking member)
33 Third folding part (third folding means)
33a Roller 33b Pedestal 33c Base 34 Conveyor 35 Cam section 35a, 35b Cam mountain 36 Lifting lift (raising means)
36a Lift plate 36b Lifter 37 Lowering lift (lowering means)
37a Lift plate 37b Lifter L Nori (wrapping material)
M1 Nori seaweed supply device M2 Rice ball supply device M3 Norimaki wrapping device (wrapping material wrapping device)
P1 input position (food input position)
P2 discharge position (food discharge position)
R rice balls (ingredients)
S placement area (food placement area)

Claims (12)

A turntable that rotates intermittently in the horizontal direction and is filled with ingredients covered with sheet-shaped packaging material.
A food material placement area formed at a predetermined interval in the circumferential direction of the turntable and on which the charged foodstuff is placed, and
A plurality of through holes formed in the turntable along at least two sides of the food placing area,
It is arranged below the turntable and is provided so as to be able to move up and down from the through hole while moving in the circumferential direction with the rotation of the turntable, and from the through hole from the food input position to the food discharge position of the turntable. A first folding means that rises and bends the packaging material upward along the foodstuff and holds the foodstuff.
A second folding means, which is arranged above the turntable and is bent upward by the first folding means, is bent onto the upper surface of the food material.
A third fold that is arranged later in the rotation direction of the turntable than the second folding means and that the packaging material bent on the upper surface of the food material by the second folding means is bent on the side surface of the food material. Song means and
A packaging material wrapping device characterized by having. The through holes are formed at three points along each side of the food placing area having a triangular shape.
The second folding means includes a movable folding portion that bends the packaging material from the first direction to the upper surface of the food material, and the food material from a second direction different from the first direction. Consists of a fixed bend that folds onto the top surface of the song,
The packaging material wrapping device according to claim 1. The third folding means bends the packaging material to the side surface of the food material, then slides the food material and discharges the food material from the turntable to the next step.
The packaging material wrapping device according to claim 1 or 2. The third bending means changes the direction of the food material after discharging the food material from the turntable.
3. The packaging material wrapping device according to claim 3. The first folding means, the second folding means, and the third folding means are
A roller that bends the packaging material while rotating,
The packaging material wrapping device according to any one of claims 1 to 4. The fixed bent portion is
With fixing members
A swinging member that is swingably attached to the fixing member,
A roller that is attached to the swing member and bends the packaging material while rotating is provided.
2. The packaging material wrapping device according to claim 2. The roller is attached with a radial looseness to the bearing supporting the roller.
The packaging material wrapping device according to claim 5 or 6. A weight is built in the roller of the second bending means.
The packaging material wrapping device according to claim 7. A plurality of the rollers of the second bending means are arranged in the length direction.
The packaging material wrapping device according to claim 7 or 8. The rollers of the third bending means are arranged in a plurality of stages in the vertical direction.
The packaging material wrapping device according to any one of claims 7 to 9, wherein the packaging material wrapping device is characterized. A weight is built in the roller of the third bending means.
The packaging material wrapping device according to any one of claims 7 to 10. As the turntable rotates, the first bending means is moved up and down from below the through hole, and a step of a cam ridge is formed at a position corresponding to the food input position and a position corresponding to the food discharge position. With the cam part
Ascending means for raising the first bending means directly above by the amount of the step at the food filling position,
A lowering means for lowering the first bending means directly below by the amount of the step at the food discharge position,
Have more
The ascending means raises the first bending means after the foodstuff is charged and before the turntable starts to rotate.
The lowering means lowers the first bending means after the packaging material has been bent by the third bending means and before the turntable starts to rotate.
The packaging material wrapping device according to any one of claims 1 to 11.

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