JP2896983B2 - Method and apparatus for roll forming of plastic food material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for forming a roll of a plastic food material, and more particularly, to a method of rolling a plastic food material formed in a belt shape such as pie dough on an outer peripheral surface of a core metal. The present invention relates to a method of forming a roll of a plastic food material that can be spirally wound while partially overlapping food ingredients by shifting the food material, and a roll forming apparatus used in the method.

[0002]

2. Description of the Related Art A so-called "corne pie" made by spirally winding a band-shaped pie dough having a fixed width around a conical or cylindrical pipe core bar and baking it has become popular in Japan, as with other baked and confectionery products. At present, a roll forming machine has been developed in which the operation of winding a band-shaped pie dough around a core metal has been developed, and mass production has been performed industrially.

[0003] However, the conventional roll forming machine was developed with reference to the procedure of the manual winding operation, and was difficult in the accuracy of the roll forming and was not suitable for high-speed processing.

That is, a conventional roll forming machine cuts a pie dough sheet by a predetermined width as shown in FIG. 1 to first produce a rectangular pie dough, and a belt in which the rectangular pie dough is obliquely arranged. By transferring to a conveyor, the orientation direction of the pie crust is changed obliquely to the cored bar, and then the pie crust is spirally wound around the cored bar. Therefore, the angle of change and the transfer position of the puff pastry due to the transfer to the oblique conveyor will inevitably vary and become inaccurate, and the puff pastry will fly at this oblique conveyor part, so it will not operate much The fact was that the speed could not be increased.

[0005] In the case of manual winding work, it is possible to perform roll forming while appropriately adjusting the posture direction of the pie crust with a fingertip even during winding. However, in the case of a conventional roll forming machine, even if a shift occurs in the orientation direction of the pie crust at the time of transferring the conveyor, there is no other way than to wind up the pie crust, and it is necessary to add a correction mechanism to adjust the pie crust displacement. It was extremely difficult to mechanize this subtle movement, and it was unavoidable.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a plastic food material capable of accurately forming a strip-shaped dough tape made from a plastic food material on a core metal without displacement and capable of high-speed processing. It is a technical object to provide a roll forming method and an apparatus therefor.

[0007]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of a conventional roll forming machine, the present inventor has sought to mechanize roll forming by referring to manual winding procedures. With the idea that it is necessary to reconsider the method of roll forming itself instead of being bound by the conventional thinking method, the above-mentioned problem was solved by employing the following technical means after trial and error.

[0008] That is, in order to solve the above-mentioned technical problems, the present invention produces a parallelogram strip-shaped dough tape T made of a plastic food material.
With a set of parallel opposite sides t · t orthogonal to the core metal P,
While partially overlapping the fabric tapes T,
Is spirally wound on the outer peripheral surface of the cored bar P.

In order to solve the above-mentioned technical problem, the present invention is to spread a dough sheet S rolled around a roll axis R by extending a plastic food material in a spread state at a required angle with respect to the roll unwinding direction. A cloth cutter 1 for continuously producing a plurality of parallelogram-shaped band-shaped cloth tapes T by oblique cutting; and a parallelogram-shaped cloth by rotating a core metal P arranged in parallel with the roll axis R. In a state in which a pair of parallel opposite sides t · t of the tape T are orthogonal to the metal core P, the material tape T is spirally formed on the outer peripheral surface of the metal core P while partially overlapping the material tapes T. A technical means called dough winding means 3 for winding up is adopted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. 1 is a simplified conceptual diagram illustrating a conventional roll forming method, FIG. 2 is a simplified conceptual diagram illustrating a roll forming method according to the present invention, and FIG. 3 is a roll of a plastic food material according to an embodiment of the present invention. FIG. 4 is a schematic plan view of the forming apparatus, FIG. 5 is a perspective view of a main part of the forming apparatus, FIGS. 6 and 7 are plan views of main parts showing a state of roll forming of the forming apparatus, and FIGS. Is a cross-sectional view of a main part showing a roll forming operation of the apparatus, and FIG. 9 is a cross-sectional view of a main part illustrating a configuration of a collet mechanism of a cloth winding means in the apparatus.

According to the present invention, as shown in FIG. 2, a dough tape T is formed into a parallelogram from a dough sheet S on which a plastic food material such as pie dough is spread, and a parallel opposite side forming a short side of the parallelogram is formed. In the state where t · t is perpendicular to the core metal P,
The most significant feature is that an epoch-making winding system of winding up on the core bar P is adopted. Conventional winding method (see Fig. 1)
Unlike the above, according to the present invention, since the step of changing the orientation of the cloth tape T is not required, the roll forming can be performed accurately and at high speed without the possibility of the position and direction deviation of the cloth tape T occurring. . Hereinafter, the plastic food material roll forming apparatus of the present embodiment will be described with reference to FIGS.

In FIGS. 3 to 5, what is indicated by reference numeral 1 is:
The dough cutter 1 is a straight-edged dough cutter which moves up and down by an advancing and retreating operation of an air cylinder 10 fixed to a device base F by a stay 11. Dough sheet S (see FIG. 5)
Is cut in a spread state. The dough cutter 1 is disposed obliquely at a required angle with respect to the roll unwinding direction of the dough sheet S, and cuts the dough sheet S diagonally by a constant width to form a parallel opposite side tt forming a short side. A strip-shaped parallelogram-shaped cloth tape T facing the shore in the transport direction is continuously produced.

The arrangement angle of the dough cutter 1 is a stay 11
(See FIG. 4), and a parallelogram-shaped cloth tape T having a desired diagonal angle can be easily produced. A water drop tube 12 is provided beside the straight blade fabric cutter 1 along the fabric cutter 1. A plurality of water drop holes 12a and 12
a ... is established, and when cutting and producing the fabric tape T,
Water droplets w, w,... Are linearly instilled on one side of the surface of the cloth tape T.

In FIGS. 3 to 5, what is indicated by reference numeral 2 is:
This is a dough conveyor having a conveyor belt 21 which is driven by a motor 20 and performs a conveying operation in the roll unwinding direction. The dough conveyor 2 of the present embodiment is disposed below the dough cutter 1 and is controlled by the dough cutter 1. A core metal P arranged parallel to the roll axis R without cutting the parallelogram-shaped fabric tape T without changing its posture direction and without causing a positional deviation in the width direction of the conveyor belt 21. Convey accurately to the position.

The one designated by reference numeral 5 is the motor 50.
Conveyor having a conveyor belt 51 which is driven by a roller and performs a conveying operation in a roll unwinding direction. The unwinding conveyor 5 is disposed upstream of the dough conveyor 2 and has a roll-wound dough sheet. S is unwound by a required length and sent out to the dough cutter 1. In other words, the unwinding conveyor 5 holds the roll-wound fabric sheet S in a state where the roll shaft R is rotatably locked by the locking tool 52 provided on the apparatus base F.
And by performing an intermittent transport operation while the dough sheet S is placed,
The dough sheet S is unwound by the required length.

In this embodiment, as described above, the unwinding conveyor 5 for unwinding the dough sheet S is used as the dough conveyor 2.
And the dough cutter 1 for obliquely cutting the unwound dough sheet S is installed in the middle of the conveying path of the dough conveyor 2, so that both the unwinding conveyor 5 and the dough conveyor 2 are simultaneously conveyed. By operating the cloth sheet S, it is possible to accurately feed the cloth sheet S to a cutter cutting position by a required length, and by carrying out only the cloth conveyor 2 while the unwinding conveyor 5 is stopped, the cloth sheet S is moved. Only the cloth tape T can be accurately conveyed to the core metal P without moving S.

Further, in the present embodiment, the unwinding conveyor 5
Stopper for holding the dough sheet S above and near the downstream of
55 are arranged. The stopper 55 moves up and down by an advancing and retreating operation of an air cylinder 55a fixed to the apparatus base F by a stay 54b. The stopper 55 presses the fabric sheet S only when the fabric tape T is transported, and the fabric conveyor 2 transports the fabric tape T. During this operation, the position of the dough sheet S is securely fixed so that the dough sheet S is not moved. The stopper 55 of the present embodiment is provided with a plurality of pins 55b, 55b,... Urged downward by a spring (not shown) on the lower surface thereof. In addition, gas is released during baking of the dough sheet.

Further, two circular ear cutters 53 and a brush 54 for sweeping hand dust of the dough sheet S are provided in the middle of the conveying path of the unwinding conveyor 5. The unwound dough sheet S is adjusted to a predetermined width by the cutting action of the two ear cutters 53 arranged at a required interval.
The brush 54 that moves forward and backward in the width direction of the dough sheet by the air cylinder 54a fixed to the device base F with the stay 54b sweeps out the hand dust on the surface, and is conveyed to the cutting position of the dough cutter 1. . In addition, ear cutter
Excess dough cut by 53
Guides 53a and 53a installed on both sides of the box 53b and 53
b.

In the figure, what is designated by reference numeral 3 is a pipe-shaped core metal P on which a cloth tape T is to be wound, while keeping the pipe-shaped core metal P parallel to the roll axis R, and the cloth conveyor 2
This is a cloth take-up means that is driven to rotate at the same speed as the transport speed. By bringing the cloth tape T conveyed and guided by the cloth conveyor 2 into contact with the core metal P rotating at the same speed as the conveyance speed, a set of parallel opposite sides t of the cloth tape T is formed.
In a state in which t is perpendicular to the metal core P, the material tapes T are spirally wound on the outer peripheral surface of the metal core P while partially overlapping each other (see FIGS. 6 and 7). Since the water droplets w, w,... Are dripped by the water drop tube 12 at the portions where the cloth tapes overlap, the cloth tapes are securely adhered to each other and a steady winding operation is performed.

As described above, in the apparatus of this embodiment, the belt-shaped cloth tape T is formed in a parallelogram shape, and the parallel opposite sides t · t are roll-formed on the core metal P in a state of being perpendicular to the core metal P. Therefore, there is no need to perform a process of changing the orientation of the fabric tape T, and the position and direction of the fabric tape T are not shifted, thereby improving the accuracy of roll forming. In addition, since a step of trimming both ends of the cloth tape T after the roll forming is not required, the roll forming itself can be greatly simplified.

In the present embodiment, in order to assist the winding roll forming of the cloth tape T, the rotation speed of the core metal P is adjusted by the motor 42 (see FIG. 3) at the downstream end of the cloth conveyor 2 in the conveyance direction. An auxiliary roller 4 that rotates at high speed is provided.
The auxiliary roller 4 of this embodiment is formed using a large-diameter soft synthetic resin sponge material, and as shown in FIG. The dough conveyor 2 carrying the T also comes into contact with each other in a mutually rubbing state. This prevents the fabric tape T from falling along the fabric conveyor 2 to the back side.

Further, in the present embodiment, as shown in FIGS. 3 to 5, a pressing roller 45 for pressing the rear end side of the cloth tape T at the time of roll forming is disposed, so that a reliable winding roll can be formed. Making it possible. After the roll forming, the auxiliary roller 4 is retracted from the core P by the extension operation of the air cylinder 40 (see FIG. 3), and the pressing roller 45 is retracted by the retraction operation of the air cylinder 44.

As shown in FIG. 4, the cloth take-up means 3 according to the present embodiment comprises a turret mechanism having a total of four rotating shafts 31, 31... Have been. At the front end of each rotating shaft 31, a cracked portion 32 of a lined collet chuck structure for supporting the pipe core P on the inner wall surface of the pipe is formed, and the core P is detachably attached to the tip cracked portion 32. Be fitted. At a total of four turning positions of the cloth take-up means 3 comprising the turret mechanism,
A mechanism for automating the attachment / detachment work is provided.

That is, at the turning position on the opposite side of the roll forming portion of the cloth take-up means 3, there is provided a mounting mechanism 6 for fitting the core bar P to the cracked portion 32. At the turning position on the downstream side, there is provided an oiling mechanism 7 for applying a release oil on the outer peripheral surface of the metal core P fitted on the front cracked portion 32, and on the turning downstream side of the oiling mechanism 7. A downstream end of the fabric conveyor 2 is disposed at the turning position of the cloth conveyor 2. Further, a core metal on which the cloth tape T is wound is disposed at a turning position on the downstream side of the transfer downstream end of the fabric conveyor 2. A removal mechanism 8 is provided for removing P from the cracked portion 32.

The mounting mechanism 6 includes a stocker 62 that can accommodate a large number of metal cores P provided on the apparatus base F, and an air cylinder 60.
With the forward and backward movement, the core metal PP of the stocker 62 ...
, And a pusher 61 for pushing out the shaft in the direction of the rotating shaft 31 in order from the lowermost portion.

The oiling mechanism 7 is an air cylinder fixed to the apparatus base F by a stay 72 and performing an up-down movement.
The air cylinder 70 includes a lifting piece 71 having a sponge portion impregnated with release oil at a lower portion fixed to the air cylinder 70. By lowering the elevating piece 71, the oil-containing sponge portion is brought into contact with the metal core P, and the core metal P is rotated in this state, so that the release oil is uniformly applied on the outer peripheral surface of the pipe.

Then, at the next turning position on the downstream side of the turning of the oiling mechanism 7, the core metal P is driven to be wound and rotated by the rotating shaft 31, and the winding tape forming of the fabric tape T is performed on the fabric conveyor 2. It is done. The rotation drive mechanism of the rotation shaft 31 will be described later. The rotation speed of the rotating shaft 31 can be appropriately changed by a controller (not shown). At the beginning of the winding of the fabric tape T, the tape end does not peel off from the cored bar P due to centrifugal force. Slowly rotate the metal core P as
Thereafter, the rotation speed of the rotating shaft 31 can be increased as appropriate.

The removing mechanism 8 disposed at the most downstream position of the fabric take-up means 3 includes a horizontal air cylinder 80a fixed to the apparatus base F by a stay 82, and a horizontal air cylinder 80a.
Vertical air cylinder fixed to 80a piston rod
80b and an inverted U-shaped engaging piece 81 fixed to the piston rod portion of the vertical air cylinder 80b. The latching piece 81 descends by the extension operation of the vertical air cylinder 80b and straddles the rotary shaft 31, and performs horizontal movement while the end of the core P is locked by the retraction operation of the horizontal air cylinder 80a. And roll-formed core metal P
Is removed from the rotating shaft 31. The core metal P removed from the cracked portion 32 is transported to a predetermined position by a take-out conveyor 9 having a conveyor belt 91 that performs a transport operation by a motor 92.

Next, the turret mechanism of the dough winding means 3 is
This will be described in detail with reference to FIG. In FIG. 9, what is indicated by reference numeral 30 is a turret head that supports the rotating shaft 31 via a total of four bearing members 30a. This turret head 30
Is fixed to the upper end portion 36 of a pipe-shaped turning shaft member 37 supported inside the housing H.
Is connected to a swing motor 38 via a swing gear 37a and a motor gear 38a.
, The turret head 30 performs a turning operation at a horizontal angle of 90 °.

Each rotating shaft 31 supported by the turret head 30
The rotating motion of 31 ... is performed by the motor 35. That is, the rotating gear 34a meshing with the motor gear 35a of the motor 35
Drives the rotating shaft member 34 to rotate, and the bevel gear 33b at the upper end of the rotating shaft member 34 is
a. 33a are meshed with each other, and each rotating shaft 31 is driven to rotate. In addition, a cracked portion 32 formed at the tip of each rotating shaft 31
A screw member 32a screwed to the rotating shaft 31 is provided inside each of the shaft members. By moving the screw member 32a forward and backward, the distance between the front cracks of the front crack portion 32 can be adjusted.

With the above arrangement, the cloth winding means 3 of the present embodiment rotates each of the rotating shafts 31 at a horizontal angle of 90 °, and rotates the rotating shaft 31 at each of the rotating positions. The release oil is applied to the outer peripheral surface of the core bar P fitted to the cracked portion 32 of the base 31, or the cloth tape T is wound up and roll-formed.

Although the embodiment which is a specific example of the present invention is generally configured as described above, the present invention is not limited to this embodiment, and various modifications may be made within the scope of the claims. Is possible.

For example, in the present embodiment, the fabric tape T is roll-formed on the cylindrical core P, but the present invention is not limited to this, and the fabric tape may be roll-formed on a conical core. Is also possible. In this case, the downstream end portion of the fabric conveyor 2 is slightly twisted in order to make the generatrix of the conical mandrel fitted to each rotating shaft 31 of the fabric winding means 3 parallel to the downstream end portion of the fabric conveyor 2. It should just be arranged.

[0034]

As described above in the embodiment, in the present invention, a parallelogram-shaped dough tape is produced from a dough sheet on which a plastic food material is spread, and the parallel opposite side of the parallelogram is used as a core metal. On the other hand, since the winding method of winding the core tape in a perpendicular state is adopted, there is no need to change the posture direction of the cloth tape, and there is no possibility that the position and direction deviation of the cloth tape will occur. This enables accurate and high-speed roll forming.

[Brief description of the drawings]

FIG. 1 is a simplified conceptual diagram illustrating a conventional roll forming method.

FIG. 2 is a simplified conceptual diagram illustrating a roll forming method according to the present invention.

FIG. 3 is a schematic side view of a roll forming apparatus for a plastic food material according to an embodiment of the present invention.

FIG. 4 is a schematic plan view of the roll forming apparatus.

FIG. 5 is a perspective view of a main part of the roll forming apparatus.

FIG. 6 is a plan view of relevant parts showing a state of roll forming by the roll forming apparatus.

FIG. 7 is a plan view showing a fabric tape roll-formed by the roll forming apparatus.

FIG. 8 is a sectional view of an essential part for explaining the function of an auxiliary roller of the roll forming apparatus.

FIG. 9 is a cross-sectional view of a principal part explaining a configuration of a collet mechanism of a cloth winding means in the roll forming apparatus.

[Explanation of symbols]

 R Roll axis S Fabric sheet T Fabric tape t Parallel opposite side P Core bar 1 Fabric cutter 2 Fabric conveyor 3 Fabric take-up means 31 Rotary shaft 32 Cracking section 4 Auxiliary roller 5 Unwinding conveyor 6 Mounting mechanism 7 Oiling mechanism 8 Removal mechanism

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A21C 11/00-11/24

Claims (8)

(57) [Claims] 1. A parallelogram strip-shaped dough tape T made of a plastic food material is produced, and a set of parallel opposite sides t · t of the parallelogram dough tape T is orthogonal to the core metal P. A method of forming a roll of a plastic food material, wherein the dough tape T is spirally wound on the outer peripheral surface of the metal core P while partially overlapping the dough tapes T. 2. A rolled dough sheet S is unrolled around a roll axis R by spreading a plastic food material, and the unrolled spread dough sheet S is obliquely cut at a required angle with respect to the roll unwinding direction. A plurality of parallelogram-shaped fabric tapes T are continuously produced by doing so, and a set of parallel opposite sides t · t of the produced parallelogram fabric tapes T are orthogonal to the core metal P. A method of forming a roll of a plastic food material, wherein the dough tape T is spirally wound on the outer peripheral surface of the core bar P while partially overlapping the dough tapes T. 3. The plastic food material is extended to unwind the rolled dough sheet S around a roll axis R, and the unrolled spread dough sheet S is obliquely cut at a required angle with respect to the roll unwinding direction. In this way, a plurality of parallelogram strip-shaped fabric tapes T are continuously produced,
To a core metal P arranged in parallel with the roll axis R by the fabric conveyor 2 performing a transport operation in the roll unwinding direction.
, And the guided fabric tape T is brought into contact with the core metal P rotating at the same speed as the transport speed, so that a pair of parallel opposite sides t · t of the fabric tape T is connected to the core metal P. A method of forming a roll of a plastic food material, wherein the dough tape T is spirally wound on the outer peripheral surface of the core bar P while partially overlapping the dough tapes T in a state where the dough tapes T partially overlap each other. 4. A plurality of parallelogram-shaped band-shaped doughs, which are obtained by extending a plastic food material and rolling a dough sheet S roll-wound around a roll axis R in a spread state at a required angle with respect to a roll unwinding direction. A cloth cutter 1 for continuously producing a tape T; and a set of parallel opposite sides tt of the parallelogram-shaped cloth tape T being rotated by rotating a metal core P arranged in parallel with the roll axis R. Fabric winding means 3 for spirally winding the fabric tape T on the outer peripheral surface of the core bar P while partially overlapping the fabric tapes T in a state perpendicular to the gold P. A roll forming apparatus for a plastic food material. 5. A plurality of parallelogram-shaped band-shaped doughs, which are obtained by extending a plastic food material and rolling a dough sheet S roll-wound around a roll axis R in a spread state at a required angle with respect to a roll unwinding direction. A dough cutter 1 for continuously producing the tape T; a dough conveyor 2 for performing a transport operation in the roll unwinding direction and for transporting and guiding the dough tape T to a core P disposed parallel to the roll axis R. By rotating the core metal P at the same speed as the conveying speed of the cloth conveyor 2, a set of parallel opposite sides t · t of the parallelogram-shaped cloth tape T is orthogonal to the core metal P. Fabric winding means 3 for winding the fabric tape T spirally around the outer peripheral surface of the cored bar P while partially overlapping the fabric tapes T;
An auxiliary roller 4 that rotates at the same speed as the rotation speed of the core bar P while being in contact with the fabric tape T wound around the core bar P;
A roll forming apparatus for a plastic food material, comprising: 6. An unwinding conveyor that unwinds a required length of a dough sheet S by carrying out a transfer operation in a roll unwinding direction while placing the rolled dough sheet S on a transfer upstream side of the dough conveyor 2. 5 and a cloth sheet S in a spread state in the conveyance path of the cloth conveyor 2.
The unwinding conveyor 5 is provided with a dough cutter 1 for obliquely cutting
And the dough conveyor 2 are simultaneously conveyed so that the dough sheet S can be sent out by the required length to the position of the dough cutter 1 at the same time.
6. The apparatus according to claim 5, wherein only the parallelogram-shaped cloth tape T cut and produced by the cloth cutter 1 can be conveyed to the position of the metal core P by stopping the operation and moving the cloth conveyor 2. Roll forming equipment for plastic food materials. 7. An auxiliary roller 4 made of a soft synthetic resin material and rotating at the same speed as the rotation speed of the core metal P while being in contact with the material tape T wound on the metal core P, and winding the material tape T. Fabric conveyor 2 for transporting fabric tape T during operation
The fabric tape T
7. The roll forming apparatus for a plastic food material according to claim 5, wherein the winding of the roll is ensured. 8. A cloth take-up means 3 for rotating the metal core P at the same speed as the transfer speed of the cloth conveyor 2 is provided with at least four rotating shafts 31 and 31 and performs a turning operation by a predetermined angle. In addition to the turret mechanism, each rotating shaft 31
A cutting mechanism 32 is formed at a tip of the turret mechanism. The mounting mechanism 6 fits the core metal P into the front cracking part 32 of the rotary shaft 31 at a predetermined turning position of the turret mechanism. And an oiling mechanism 7 for applying release oil on the outer peripheral surface of the core bar P fitted to the front cracked portion 32 at a turning position on the downstream side of the mounting mechanism 6. The transport downstream end of the fabric conveyor 2 is arranged at a further turning position on the downstream side of the rotation, and the core metal P on which the fabric tape T is wound is located at the rotation position on the downstream side of the downstream of the transport of the fabric conveyor 2. 8. The roll forming apparatus for a plastic food material according to claim 5, wherein a detaching mechanism 8 is provided for withdrawing from the cracked portion 32 of the rotating shaft 31.