KR100433119B1 - Apparatus and method for cutting and shaping a chinese bun - Google Patents

Abstract

In the conventional machine, it was impossible to form a large number of torsional wrinkles on the outer surface of the neutralized dumpling.

According to the present invention, the shutter piece is rotatably installed on a circumference around the cutting opening to form a molding plate on the lower surface of the shutter piece, and the molding plate is formed to be substantially radial when the shutter opening is closed by rotating the shutter.

Description

Apparatus and method for cutting and shaping a chinese bun}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of neutralized dumplings and the like. The present invention relates to a foreskin cutting device and a method for forming a torsional wrinkle having a shape peculiar to a neutralized dumpling on the surface of the shell.

As a means for forming torsional wrinkles on the outer skin surface such as neutralized dumpling in the conventional foreskin cutting device, there is a food molding device owned by the present applicant (Utility Model Publication No. 432032076), which will be briefly described.

The molding apparatus of this food is the center of the sliding surface which can be combined in a channel wheel shape so that three or more square pieces which make two adjacent surfaces a sliding surface contact the sliding surface of each square piece. When the periphery (cutting opening) is used as the passage of the rod-shaped dough, and the rectangular piece is slid to reduce the peripheral area, the area in contact with the dough of the rectangular piece is gradually reduced to form a cut of the rod-shaped dough. In the sliding surface facing, it is trying to make several sets of wrinkles on the surface of an outer shell by providing the missing part for sandwiching dough from the center part of a square piece to the front-end | tip.

By the way, as mentioned above, although the wrinkle part can be formed at the time of the cut of the rod-shaped food dough by the cooperation of the missing part provided in three or more square pieces, when forming many wrinkles, the necessity of increasing the number of square pieces arises. Since the sliding surface of the square piece is increased, other frictions increase, the gutter of the sliding surface and the deformation of the shape due to the thinning of the square piece do not smooth the opening and closing operation of the cutting opening. There is a problem that the wrinkle-forming action is not sufficiently performed and the quality of the foreskin food is lowered. In addition, there is a problem that the dough enters the gap between the shutters, the dough waste occurs, the shape of the wrinkles is not uniform, there is a problem that some of the shape is changed and damage the outline of the product.

1 is a front view of one embodiment of the foreskin cutting device according to the present invention.

2 is a top view exposing the shutter drive unit of the foreskin cutting device according to the present invention.

3 is a side view of an embodiment of a foreskin cutting device according to the present invention.

Figure 4a is a side cross-sectional view for explaining a state in which the rod-shaped dough is supplied to the cutting opening of the shutter of the foreskin cutting device according to the present invention.

4B is a bottom view of the shutter in the state shown in FIG. 4A.

Fig. 5A is a side cross-sectional view for explaining a state in which the rod-shaped dough is cut in the foreskin by the shutter of the foreskin cutting device according to the present invention.

5B is a bottom view of the shutter in the state shown in FIG. 5A.

Fig. 6A is a side cross-sectional view for explaining a state where the rod-shaped dough is cut in the foreskin by the shutter of the foreskin cutting device according to the present invention.

6B is a bottom view of the shutter in a state shown in FIG. 6A.

Figure 7 is a perspective view of the shutter of the foreskin cutting device according to the present invention from below.

8 is an exploded perspective view of the shutter piece and the holder of the shutter of the foreskin cutting device according to the present invention;

※ Explanation of codes for main parts of drawing

1 foreskin cutting device 2 shutter

3 Body Frame 4 Food Dough Feeder

5 Conveyor units 21 Cutting openings

22 shutter side 23 holder

24 protrusion 25 connection

26 Edge section 27 Molded plate

29 protrusion 31 fixing member

32 support frame 34 drive motor

37 Cam roller 39 Lifting member

40 Entry port 41 Vertical axis

42 driven gear 43 intermediate gear

44 drive gear 45 driven link

46 Drive link 47 Connection link

49 Cam Plate 52 Coupling Member

53 Guide section 54 Eccentric pin installation groove

55 Eccentric Pin 56 Eccentric Shaft

57 fixing member 58 long hole

59 Eccentric pin mounting hole 60 Fixing member mounting hole

61 roller 62 roller shaft

In order to solve the above problems, the present invention provides a plurality of shutter pieces (approximately three or more integer) shutter pieces arranged radially and arranged to form a cutting opening in the center, and rotation means for sliding the shutter pieces. And a shutter device that slides the shutter piece by the rotating means to open and close the cutting opening, and opens the cutting opening to form a double structure of a covering material and an outer shell material from above the cutting opening. A foreskin cutting device for supplying food dough on top, sliding the shutter piece therefrom to close the opening and cutting the foreskin of the rod-shaped food dough, wherein the sliding surfaces of the shutter pieces are adjacent to each other. Combined by the engaging member to move, and each shutter piece has a long hole And the shutter device has m vertical axes (m is an integer) at equal intervals on a predetermined circumference concentric with the cutting opening, and when the shutter pieces slide, the vertical axes are relative to each of the long holes of the shutter pieces. And the shutter pieces are rotatable about an axis of the vertical axis, and the opening means closes when the n shutter pieces are rotated in a clockwise direction while synchronizing the n shutter pieces. When the shutter pieces are rotated counterclockwise while synchronizing the two shutter pieces, the openings are opened. Further, the lower surfaces of the shutter pieces are placed so as to protrude the molding plates, and the molding plates are roughly closed when the cut openings are closed. Provided is a foreskin cutting device characterized in that it is arranged radially.

According to the above constitution, when the n-shaped pieces are rotated in the forward direction synchronously by the rotation operation means while supplying the rod-shaped food dough from above, the cut-off opening is gradually closed to cut the rod-shaped food dough, Since the n shutter pieces are combined so as to slide the sliding surfaces of the adjacent shutters by the engagement member, the dough is not allowed to enter the gap between the shutter piece and the adjacent shutter pieces, and thus the cutting opening is gradually closed. In this case, wrinkles are formed in the dough cut into the foreskin with the molded plate on the lower surface of the n shutter pieces sandwiched between the outer shell material.

The present invention further comprises n (n is an integer of 3 or more) shutter pieces arranged in a radial manner and arranged to form a cutting opening in the center, and rotating means for sliding the shutter piece, wherein the rotating means is provided. And a shutter device for sliding the shutter piece to open and close the cut opening, and open the cut opening to supply a rod-shaped food dough having a double structure of an inner material and an outer shell material to the cut opening from above. A foreskin cutting device for sliding the shutter piece therefrom to close the opening and cutting the foreskin of the rod-shaped food dough, wherein the shutter pieces are combined by a coupling member such that sliding surfaces of adjacent shutters slide. Moreover, each shutter piece has a long hole, and the said shutter apparatus is the said cutting dog M (m is an integer) vertical axes at equal intervals on a predetermined circumference, negative and concentric, and when the shutter piece slides, the vertical axis slides relatively in each long hole of the shutter piece, and each shutter piece It is rotatable about the axis of the vertical axis, and by the rotating means, the clockwise rotation while synchronizing the n shutter pieces is closed, while the counterclockwise rotation is made while synchronizing the n shutter pieces. A method of cutting the foreskin by using a foreskin cutting device in which the opening is opened, and further formed on the lower surface of each shutter piece so as to protrude the forming plate, and the forming plate is arranged substantially radially when the cutting opening is closed. As

(Iii) synchronizing the n shutter pieces by rotating the counterclockwise direction by the rotating means to open the cut opening;

(Ii) supplying a rod-shaped food dough composed of a double structure of a covering material and an outer cover material from above the cut opening;

(Iii) The n shutter pieces are synchronized by the rotating means to rotate in the clockwise direction, thereby gradually closing the cutting openings and pressing the outer shell material from the circumferential direction by the n shutter pieces, Forming a cut joint portion and further separating the inner wrap material by the outer shell material up and down, and forcing the inner wrap material by the outer shell material at the cut joint portion, respectively;

(Iii) during the process of (i) or at the same time as the cutting of the cut joints, when the n shutter pieces slide and gather at the center by the rotating means, molded plates protruding from the lower surface of each shutter piece cooperate with the outer skin. Forming a plurality of wrinkles in the outer shell with the ashes interposed therebetween, and cutting the joint portions cut by the shutter pieces;

(Iii) after the step (ii) ends, rotating the counterclockwise direction by synchronizing the n shutter pieces by the rotating means to open the cut opening;

(Iii) After the process of said (iii) is complete | finished, the process of cutting the foreskin is provided, Comprising: The process of repeating the process of the said (iii) from the process of said (iii) sequentially is provided.

Example

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 6, the foreskin cutting device 1 has a double structure of an inner wrapper (eg, beef, meat, vegetable) W1 and an outer wrapper (eg, Chinese dumpling dough) W2. The forage cutting is performed on the rod-shaped food dough W while supplying the food dough W consisting of the raw material dough W from the upward direction to the cutting opening 21 in the center portion of the shutter 2, and the box-shaped body frame 3 Is based on. The shutter 2 is made by combining twelve shutter pieces 22, and the shutter pieces 22 are held by holders 23, respectively.

Next, the structure for elevating the 12 shutter pieces 22, the structure for synchronizing and rotating the 12 shutter pieces 22, etc. are demonstrated.

The main frame 3 is provided with a pair of fixing members 31, and the pair of fixing members 31 support the support frame 32 extending in the front-rear direction so as to be able to swing in the vertical direction via the swing shaft 33. It is installed. In order to oscillate the support frame 32 in the up and down direction, a driving motor 34 is provided at the base of the support frame 32, and a lower portion of the output shaft 36 of the drive motor 34 is located from a rotational center. The cam roller 37 which changes the length to an outer peripheral surface is provided, and the contact roller 38 which this cam roller 37 contacts is provided in the appropriate position of the main-frame 3. In addition, the cam roller 37 contacts the contact roller 38 by the gravity acting on the support frame 32.

An elevating member 39 is provided at the tip end of the supporting frame 32, and the elevating member 39 is provided with an entry port 40 through which the food dough W can enter from above. The entry port 40 is located above the cutting opening 21. On the circumference of the predetermined circle S (FIG. 4B) in the elevating member 39, twelve rotatable vertical shafts 41 are provided at equal intervals, and the holders 23 are integral with each vertical shaft 41. Is installed. Here, each of the shutter pieces 22 is configured to be rotatable about an axis of the corresponding vertical axis 41, and the cutting openings 21 are formed by rotating the 12 shutter pieces 22 clockwise (forward direction) in synchronization. Is closed and the cutting openings 21 are opened when the 12 shutter pieces 22 are rotated counterclockwise (reverse direction).

As shown in FIG. 2, each of the vertical shafts 41 is provided with a drive gear 44 and a driven gear 42, respectively, and in the elevating member 39, a ring-shape engaged with eleven driven gears 42. The intermediate gear 43 is rotatably provided. In addition, a drive gear 44 engaged with the intermediate gear 43 is rotatably provided in the elevating member 39, and the base of the driven link 45 is provided in the drive gear 44. In addition, the rear side of the support frame 32 is provided with a drive link 46 which can swing in the horizontal direction via the bracket 35, and one end of the connecting link 47 is connected to the distal end of the driven link 45. The other end of the connection link 47 is connected to one end of the drive link 46. In order to oscillate the drive link 46 in the horizontal direction, a cam plate 49 having a cam groove 48 is provided above the output shaft 36 of the drive motor 34, and the drive link 46 is provided. The follower 50 installed at the other end of the cam is movable to the cam groove 48.

Here, the shape of the cam roller 37 and the shape of the cam groove 48 rotate the twelve vertical axes 41 clockwise to rotate the twelve shutter pieces 22 in the direction of closing the cutting opening 21. When the support frame 32 is swung downward, the twelve vertical axes 41 are rotated counterclockwise, and the twelve shutter pieces 22 are greatly opened to return to the original state. It is comprised by predetermined shape, respectively, so that rocking | fluctuation may be carried out upward.

With the above configuration, when the cam plate 49 is rotated in the direction of the arrow shown in FIG. 2 by driving the drive motor 34, the drive link 46 and the connection link 47 are operated by the action of the cam groove 48. The drive gear 44 is rotated in the forward and reverse directions through the driven link 45, and thus, the 12 vertical shafts 41 are synchronized in the forward and reverse directions via the intermediate gear 43 and the driven gear 42. . Here, when the 12 vertical shafts 41 are rotated in the forward direction (clockwise in FIG. 2) in synchronism, the 12 shutter pieces 22 can be rotated in the forward direction, and the cutting opening 21 can be closed. When the two vertical shafts 41 are rotated in the reverse direction (counterclockwise in FIG. 2), the twelve shutter pieces 22 can be rotated in the reverse direction to open the cutting opening 21.

In addition, when rotating the 12 shutter pieces 22 in the forward direction which closes the cutting opening 21, the support frame 32 is moved downward with respect to the oscillation shaft 33 by the action of the cam roller 37. As shown in FIG. The twelve shutter pieces 22 are lowered integrally with the elevating member 39. In addition, when the 12 shutter pieces 22 are greatly opened and returned to their original state, the support frame 32 is rotated upward with respect to the swing shaft 33 by the action of the cam roller 37, Twelve shutter pieces 22 are integrally raised with the elevating member 39.

4 to 6, each of the shutter pieces 22 is provided with protrusions 24 for cutting the outer shell material W2, and on the upper and lower sides of the protrusions 24 of the shutter pieces 22. The joining part 25 which foreskin-bonds the upper and lower parts of the cut part of the outer shell material W2 is provided continuously, respectively. Here, when the 12 shutter pieces 22 are rotated in the forward direction in synchronization with each other, the protrusions 24 of the shutter pieces 22 adjacent to the twelve protrusions 24 and the edge portions 24a and 25a at the joining part 25 are adjacent to each other. And the position and length of the long hole 58 of the shutter piece 22 are set so that it may contact with each corresponding part of the junction part 25, and may aggregate at the center of predetermined | prescribed circle S (FIG. 6B).

Referring to FIG. 8, the holder 23 includes a roller shaft 62 supported between the holder plate 23a and the holder plate 23b, and a roller 61 rotatably fitted to the roller shaft 62. The roller 61 is slidably inserted into the long hole 58 of the shutter piece 22. In the state held by the holder 23, the shutter piece 22 slides along the elongate hole 58 by the roller 61 fitted so that the elongate hole 58 can slide.

In this embodiment, although the roller 61 was used for the holder 23 fitted in the long hole 58 of the shutter piece 22, sliding the shutter piece 22 by the rotation of the holder 23 is carried out. It is not limited to this, for example, using a member which has a plate-shaped cross section instead of the roller 61.

Moreover, the other shutter piece 22 adjacent to the shutter piece 22 is slidably coupled by the engagement member 52, and the guide part 53 of the engagement member 52 is adjacent to the other shutter piece. It is combined so that the protrusion part 29 of 22 may be in sliding contact, and the engagement member 52 is locked to the shutter piece 22 via the eccentric pin 55. As shown in FIG. As for the eccentric pin 55, the part caught by the eccentric pin attachment hole 59 provided in the shutter piece 22, and the part which catches the engagement member 52 are eccentric, and the eccentric pin 55 is attached to the shutter piece 22. As shown in FIG. ) Is attached to the shutter piece 22 by hanging the fixing member 57 of the eccentric pin 55 which selects the plural or one of the fixing member attachment holes 60, and passes through the eccentric pin 55 to the shutter piece ( It is possible to determine the attachment position of the engaging member 52 hanging over 22), whereby it can be set to an optimal value at which the dough does not enter the gap between one shutter piece 22 and another shutter piece 22 adjacent thereto. have. In other words, when there is a gap between the shutter piece 22 and another shutter piece 22 adjacent to the dough, the dough enters the gap, for example, the dough gas is generated and adhered to the product to produce the product. Although extra work may occur that damages aesthetics or removes dough gas adhering to the product, an optimal value that does not enter the gap between the shutter piece 22 and another adjacent shutter piece 22. By setting to, this problem does not occur.

Next, the shaping plate 27 will be described. As shown in FIGS. 7 and 8, the shaping plate 27 is placed on the lower surface 28 (shown as an inclined surface in the drawing) of the twelve shutter pieces 22, respectively. Is installed. As shown in FIG. 8, the shape of the shaping | molding plate 27 can be suitably changed into the substantially square shape (for example, 25-30 mm in height, 30-35 mm in length, 0.5-3 mm in thickness) of flake shape. When the twelve shutter pieces 22 rotate in the forward direction and the cutting openings 21 are closed, the molded plate 27 is arranged substantially radially side by side in the radial direction, and is stepped with the joint 25. Is put in place.

Here, the placing position of the shaping | molding plate 27 is the front end side of the lower surface 28 of the shutter piece 22 like the Example of FIG. 8, and the step G is between the shaping | molding plate 27 and the junction part 25. FIG. The size of the gap between the outer shell material W2 and the size of the wrinkles when the shutter piece 22 closes is determined by the size of the step G.

In addition, the size of the wrinkles of the dough can be changed by appropriately selecting and inclining the edge portion 27a of the molded plate 27 as well as inclining (including vertically without inclining).

The shape of the 12 shaping | molding plates 27 should just be formed in the substantially radial or spiral winding shape when the cutting opening 21 is closed.

1 to 3, a food dough supply device 4 is provided above the shutter 2 in the main body frame 3, and the food dough supply device 4 is a rod-shaped food dough ( W) is supplied to the cutting opening 21 from the upper direction. Moreover, the conveyor apparatus 5 is provided below the shutter 2 in the main body frame 3, and this conveyor apparatus 5 conveys foreskin food WA. The conveyor apparatus 5 is connected to the drive apparatus so that the conveyor plate 51 can move up and down so that a vertical movement may be performed in synchronization with the vertical movement of the shutter 2.

Next, the usage method of the foreskin cutting device 1 is demonstrated.

The usage method of the foreskin cutting device 1 is to the rod-shaped food dough W while supplying the rod-shaped food dough W from the upward direction to the cutting opening 21 by the operation of the food dough supply device 4. It is a method of carrying out a foreskin cutting, and is equipped with the following (iv) process-(iv) process.

(Iii) process

By driving the drive motor 34 and the action of the cam groove 48, the 12 shutter pieces 22 are synchronously rotated in the forward direction and the cutting opening 21 is gradually closed, and the 12 shutter pieces 22 are closed. The outer shell material W2 is urged from the circumferential direction by the joining portion 25 and the protruding portion 24 to form a joint portion cut in the outer shell material W2, and the inner wrapper W1 is formed by the outer shell material W2. Is separated up and down, and the envelope (W1) by the envelope (W2) at the cut joint portion, respectively.

(Ii) If the 12 shutter pieces 22 further rotate in the forward direction by the driving of the drive motor 34 and the action of the cam groove 48 after the step (i) or the end of the step (i), the 12 shutters The dough adhered downward into the step G of the lower surface 28 of the piece 22 enters, and the protruding portion 24 of the twelve shutter pieces 22 with the molding plate 27 sandwiching the outer shell material W2. Edges 24a are gathered at the center of the circle S to cut off the cut portion of the shell material W2, whereby the forming plate 27 is radially constructed from the center of the circle S. 12 wrinkles are formed in the outer cover material W2.

(Iii) After the above-mentioned step (ii) is finished, the 12 shutter pieces 22 are largely rotated in the opposite direction in synchronism with the driving of the drive motor 34 and the action of the cam groove 48, and the cutting opening 21 ) Is greatly opened to return to its original state (see FIG. 4). For this reason, one time cut of the foreskin with respect to the rod-shaped food dough W is complete | finished.

(Iii) After the step (iii) is completed, the step (v) to step (v) are repeated one by one to cut the foreskin several times on the rod-shaped food will (W), and the plurality of foreskin Manufacture food (WA). In addition, as shown in FIG. 2, the some foreskin food WA is conveyed to the left direction toward the FIG. 2 by the conveyor apparatus 5, and the operation | work of a post process is performed.

According to the embodiment of the present invention described above, it is possible to reliably form a plurality of wrinkles in the outer shell material (W2).

Regarding the placing position of the molded plate 27, the above-described embodiment shows that a step G is provided between the molded plate 27 and the joining portion 25 in FIG. 8. As another example, for example, the bonding plate 27 may be provided on the same surface without providing the step G in the bonding portion 25. In this case, the molding plate 27 is provided from a position spaced a predetermined distance from the distal end side of the lower surface 28 of the shutter piece 22 so as to eliminate the tip side of the molding plate 27 and sandwich the dough W therebetween. By doing so, the dough entering into the lower surface 28 of the shutter piece 22 can be increased, and the dough can be sandwiched.

According to the present invention, in the process of closing the cutting opening by the rotating means of the shutter piece, the forming plate cooperates to sandwich the outer shell, and can form the wrinkles reliably, and since no dregs are generated, it does not damage the appearance of the product. In addition, it is possible to form a large number of torsional wrinkles of a uniform shape.

Claims (5)

And n (n is an integer of 3 or more) shutter pieces arranged substantially radially, and arranged to form a cutting opening in the center, and rotating means for sliding the shutter piece, wherein the shutter piece is rotated by the rotating means. And a shutter device for sliding the opening and closing of the cutting opening, and opening the cutting opening to supply a rod-shaped food dough composed of a double structure of an envelope material and an outer shell material from above to the cutting opening, and the shutter piece therefrom. In the foreskin cutting device which slides the said opening and closes the said opening, and cuts the foreskin of the said rod-shaped food dough, The shutter pieces are combined by a coupling member such that the sliding surfaces of the shutters adjacent to each other slide, and each shutter piece has a long hole, The shutter device has m vertical axes (m is an integer) at equal intervals on a predetermined circumference concentric with the cutting opening, and when the shutter piece slides, the vertical axis is relatively inside each long hole of the shutter piece. Sliding, and each shutter piece is rotatable about an axis of the vertical axis, By the rotating means, the opening is closed when the n shutter pieces are rotated in the clockwise direction while synchronizing, and the opening is opened when the n shutter pieces are rotated in the counterclockwise direction while synchronizing. Further, the foreskin cutting device is placed on the lower surface of each shutter piece so as to protrude the forming plate, and the forming plate is arranged substantially radially when the cutting opening is closed. The foreskin cutting device according to claim 1, wherein the engaging member is caught by the shutter pin via an eccentric pin. The said eccentric pin has a part hung by the eccentric pin attachment hole, and the part caught by the said engagement member, The said part is eccentric, The other shutter piece adjacent to the said shutter piece and the said shutter piece The foreskin cutting device which can be set to the optimum value that dough does not enter in the gap between. 2. The foreskin cutting device according to claim 1, wherein the forming plate is provided on the front end side of the lower surface of the shutter piece, and a step is formed between the forming plate and the joining portion. N (n is an integer of 3 or more) shutter pieces arranged in a radial manner and arranged to form a cutting opening in a central portion, and rotating means for sliding the shutter piece, wherein the shutter piece is rotated by the rotating means. And a shutter device for sliding the opening and closing of the cutting opening, and opening the cutting opening to supply a rod-shaped food dough composed of a double structure of an envelope material and an outer shell material from above to the cutting opening, and the shutter piece therefrom. A foreskin cutting device for sliding the foreskin to the rod-shaped food dough by sliding the closing of the opening, The shutter pieces are combined by a coupling member such that sliding surfaces of the shutters adjacent to each other slide, and each shutter piece has a long hole, The shutter device has m vertical axes (m is an integer) at equal intervals on a predetermined circumference concentric with the cutting opening, and when the shutter piece slides, the vertical axis is relatively formed in each long hole of the shutter piece. Slip, and each shutter is rotatable about an axis of the vertical axis, By the rotation means, the opening is closed when the n shutter pieces are rotated clockwise while synchronizing, while the opening is opened when the n shutter pieces are rotated counterclockwise while synchronizing the n shutter pieces. In the method of cutting the foreskin using a foreskin cutting device which is placed on the lower surface so as to protrude the forming plate, and the forming plate is disposed substantially radially when the cutting opening is closed. (Iii) synchronizing the n shutter pieces by rotating the counterclockwise direction by the rotating means to open the cut opening; (Ii) supplying a rod-shaped food dough composed of a double structure of a covering material and an outer cover material from above the cut opening; (Iii) The n shutter pieces are synchronized by the rotating means to rotate in the clockwise direction, thereby gradually closing the cutting openings and pressing the outer shell material from the circumferential direction by the n shutter pieces, Forming a cut joint portion and further separating the inner wrap material by the outer shell material up and down, and forcing the inner wrap material by the outer shell material at the cut joint portion, respectively; (Iii) during the process of (i) or at the same time as the cutting of the cut joints, when the n shutter pieces slide and gather at the center by the rotating means, molded plates protruding from the lower surface of each shutter piece cooperate with the outer skin. Forming a plurality of wrinkles in the outer shell with the ashes interposed therebetween, and cutting the joint portions cut by the shutter pieces; (Iii) after the step (ii) ends, rotating the counterclockwise direction by synchronizing the n shutter pieces by the rotating means to open the cut opening; And (iii) a step of repeating the steps from (b) to (b) after the step (v) is completed.