JP2010088423A - Method and apparatus for spreading food dough - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for spreading a continuous food dough to a sheet while applying little stress to the dough. <P>SOLUTION: A plurality of oscillating members 103 having a dough pressing part 103A extended in transfer direction are parallelly arranged perpendicular to the transfer direction in a spreading action region 101 to spread the food dough, and an upstream end of the dough pressing part 103A of each oscillating member 103 is pivoted in a vertically oscillating manner for increasing the amplitude of the vertical motion of the downstream side of the dough pressing part 103A compared with the amplitude of the vertical motion of the upstream side. The continuous food dough 5 transferred to downstream side is pressed toward oppositely placed dough pressing means by each dough pressing part 103A of each oscillating member 103 and pressed and spread gradually to a thin sheet. The vertical oscillation of each dough pressing part 103A is successively performed from the center to both sides or from both sides to the center of the parallelly arranged multiple dough pressing parts 103A, and the food dough is gradually pressed and spread in lateral direction which is the parallelly arranged direction of the dough pressing members 103 to spread the food dough in the form of a sheet. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method and an apparatus for extending, for example, a rod-like long food dough conveyed in a longitudinal direction by a conveying means into a sheet shape, and more specifically, a food dough from a rod-like long sheet to a sheet. The present invention relates to a method and apparatus for reducing the internal stress when extending into a sheet and extending the sheet into a sheet without applying a large stress.

  When a long food dough that is conveyed in the longitudinal direction by the conveying means is extended into a sheet shape, the food dough is passed through a spreader equipped with an appropriate number of extending rollers so that the food dough is appropriately formed into a sheet shape. It is extended. A general spreader is a type in which a food dough is pressed and thinned by a spreader roller provided in the spreader. Note that there is Patent Document 1 as a prior document considered to be related to the present invention.

U.S. Pat. No. 4,828,861

  In the configuration described in Patent Document 1, a counter roll that presses the food dough is rotatably provided to extend the food dough conveyed by the belt. A rotating shaft provided rotatably below the belt at a position corresponding to the counter roll is provided with a plurality of eccentric cams provided with bearings rotatably on the outer periphery so as to overlap in the axial direction. The plurality of eccentric cams are provided with slightly different phases, and are provided symmetrically about a central portion in the longitudinal direction of the rotating shaft.

  With the above configuration, when the rotating shaft rotates, the bearing moves up and down by the action of the eccentric cam, pushes up the belt and presses the food dough on the belt against the counter roll, and the pressing operation moves from the center to both sides. By gradually moving and changing, the spreading action of the food dough is performed.

  By the way, according to the said structure, although the spreading | diffusion action of the food dough on a belt can be performed comparatively favorable, it pushes up so that the part which the bearing is contacting may be pressed to the lower part of a counter roller by rotation of an eccentric cam. Since it is a structure, the food dough on a belt becomes a mode compressed rapidly, and there exists a problem that the extension rate in the case of extending to a thin sheet form is large, an internal stress becomes large, and a residual stress becomes large.

  The present invention has been made in view of the above-described problems, and is a method of extending a long food dough conveyed in the longitudinal direction by a belt conveying means into a sheet shape, and performs the spreading action of the food dough A plurality of oscillating members provided with a fabric pressing portion that is long in the transport direction are provided in parallel in a direction orthogonal to the transport direction in the extending action region for the upstream side of the fabric pressing portion. In order to increase the amplitude of the vertical movement on the downstream end side relative to the amplitude of the vertical movement, the upstream end side of the fabric pressing portion in each swinging member is pivotally supported so as to be swingable up and down. The dough pressing unit in the press presses the long food dough conveyed to the downstream side against the dough pressing means provided opposite to the dough pressing unit so that the dough pressing unit gradually presses and extends, and the dough pressing unit swings in the vertical direction. Multiple students in parallel The food dough is progressively pressed and extended in the width direction, which is the parallel direction of the dough pressing members, in order from the center of the pressing portion to both sides or from both sides to the center, and the long food dough is extended into a sheet shape. It is characterized by doing.

  In the method for extending the food dough, the thickness dimension and the width dimension of the long food dough conveyed to the position where the dough pressing portion of each swing member is pressed and extended are always adjusted to be substantially constant. It is characterized by.

  In the method for extending the food dough, the food dough is sandwiched and conveyed between the belt conveying means and the dough pressing means even on the downstream side of the portion where the amplitude of the vertical movement of each swinging member is maximum. It is characterized by.

  Also, a food dough spreading device for extending a long food dough conveyed in the longitudinal direction by a belt carrying means into a sheet shape, the conveying dough extending to the extending action region for performing the food dough spreading action A plurality of oscillating members provided with a dough pressing portion that is long in the direction, arranged in parallel in a direction orthogonal to the transport direction, and on the downstream end side relative to the amplitude of the vertical movement on the upstream end side in the dough pressing portion In order to increase the amplitude of the vertical movement, the upstream end side of the fabric pressing portion in each swing member is pivotally supported so as to be swingable up and down, and each swing member is individually swinged. And the rocking member rocking means for performing rocking of the up-and-down direction of each cloth press part in order from the central part of the plurality of cloth press parts provided in parallel to both sides or from both sides to the central part is provided, In front of the food dough facing each rocking member And it is characterized in that it comprises a fabric pressing means for regulating the movement in the swing direction.

  Further, in the food dough extending apparatus, a thickness width adjusting means for adjusting the thickness dimension and the width dimension of the food dough conveyed to the extending action area to be substantially constant at the upstream side of the extending action area. It is characterized by having.

  In the food dough spreading apparatus, the food dough extending apparatus includes a thickness detecting means for detecting the thickness of the food dough at a position corresponding to the thickness width adjusting means, and based on the detection result of the thickness detecting means. A food dough spreading apparatus, comprising a carry-in speed control means for controlling a conveying speed of the food dough to the thickness adjusting means.

  According to the present invention, a long food dough is subjected to a pressing action caused by vertical swinging of a plurality of swinging members having a dough pressing portion that is long in the conveying direction, and is gradually thinned and gradually extended in the width direction. Since it is formed in a shape, the stress of the food dough extended in a sheet shape can be suppressed.

It is front explanatory drawing which shows the whole structure of the food dough extending apparatus which concerns on embodiment of this invention. It is a plane explanatory view same as the above. FIG. 3 is an enlarged explanatory view of a main part in FIG. 2. It is front explanatory drawing which shows the structure of a spreading action area | region. It is a plane explanatory view same as the above. It is explanatory drawing of the extension effect | action by rocking | fluctuation of a rocking | swiveling member.

  As conceptually and schematically shown in FIG. 1 and FIG. 2, the food dough spreading apparatus 1 according to the embodiment of the present invention includes a frame 3 appropriately combined with steel materials. A first belt conveyor 7 on the upstream side and a second belt conveyor 9 on the downstream side as conveying means for conveying a long food dough 5 such as a bar shape in the longitudinal direction (left and right in FIGS. 1 and 2), It has. The first belt conveyor 7 is provided with a conveyor belt 7A composed of an endless flat belt that circulates substantially horizontally over the upper portion of the frame 3 and then turns downward, and includes a control device 11 (see FIG. 2). ) Is driven and rotated by a rotation driving means 13 such as a servo motor that is driven to rotate under the control of (2).

  The configuration in which the conveyor belt 7A in the first belt conveyor 7 is looped around a plurality of rollers 15 and the like appropriately disposed on the frame 3 and the appropriate rollers are interlocked and connected to the rotation driving means 13 is an appropriate configuration. Since it can do, detailed description about the interlocking | linkage structure of the rotation drive means 13 and the 1st belt conveyor 7 is abbreviate | omitted.

  The second belt conveyor 9 receives the food dough 5 carried (conveyed) from the upstream first belt conveyor 7 and conveys it to the downstream side of the first belt conveyor 7 (FIG. 1). 9A, a conveyor belt 9A composed of an endless flat belt that circulates in the upper part of the frame 3 and then circulates in a downward direction, like the first belt conveyor 7. It is the structure provided with. The endless conveyor belt 9A is wound around a plurality of rollers 17 provided in the frame 3, and the appropriate rollers 17 are linked to a motor (not shown) whose rotation is controlled by the control device 11. It is.

  With the above configuration, the food dough 5 conveyed to the downstream side (left side in FIG. 1) by the first belt conveyor 7 can be continuously transferred to the second belt conveyor 9 on the downstream side.

  A food dough supply means 19 for supplying the long food dough 5 onto the first belt conveyor 7 is provided above the frame 3 and upstream of the first belt conveyor 7. The food dough supply means 19 is configured to discharge the food dough in a hopper (not shown) in a rod shape and place it on the first belt conveyor 7, or to cut the food dough in the hopper to a predetermined length. Since well-known general food dough supply means such as a configuration of dropping on the one belt conveyor 7 can be adopted, detailed description of the food dough supply means 19 is omitted.

  On the upper side in the vicinity of the downstream end of the first belt conveyor 7, a thickness for adjusting the thickness dimension and width dimension of the food dough 5 conveyed downstream by the first belt conveyor 7 to be substantially constant at all times. A width adjusting means 21 is provided. More specifically, the thickness width adjusting means 21 includes a thickness adjusting belt device 23 capable of adjusting the distance between the first belt conveyor 7 and the upper surface of the horizontal conveyor belt 7A so that the vertical position can be adjusted. Yes. Further, the thickness width adjusting means 21 is positioned in the width direction of the first belt conveyor 7 in order to adjust the width dimension of the food dough 5 after the thickness is adjusted by the thickness adjusting belt device 23. A pair of adjustable width adjusting belt devices 25A and 25B are provided.

  More specifically, a support bracket 27 is erected on the frame 3 on both sides of the conveyor belt 7A in the first belt conveyor 7, and a motor (see FIG. Both ends of a rotating shaft 29 that is interlocked and connected via a belt or the like are rotatably supported. A pair of swing brackets 31 that are supported at both ends of the rotary shaft 29 so that the base end portion is swingable up and down are provided long toward the width adjusting belt devices 25A and 25B. Both ends of the support shaft 33 are supported on the distal end side of the moving bracket 31. An endless flat belt 39 is wound around a large-diameter drive pulley 35 provided on the rotary shaft 29 and a small-diameter driven pulley 37 provided on the support shaft 33.

  In order to swing the swing bracket 31 up and down around the rotation shaft 29, the support bracket 27 is vertically provided with a screw member 41 that is rotated by a handle operation. The nut member 43 and the swing bracket 31 that are movably screwed together are interlocked and connected so as to move up and down in conjunction with each other. The nut member 43 is configured to move up and down vertically, whereas the swing bracket 31 moves up and down so as to rotate (swing). For example, the nut member 43 is provided horizontally. The end portion of the connecting rod connected to both swing brackets 31 is engaged with the elongated hole portion so as to be detachable.

  With the above-described configuration, by rotating the screw member 41, the swing bracket 31 can be adjusted to rotate in the vertical direction around the rotation shaft 29. That is, the interval between the flat belt 39 provided in the thickness adjusting belt device 23 and the conveyor belt 7A in the first belt conveyor 7 can be adjusted, and the thickness of the food dough 5 passing through this interval is adjusted. It is something that can be done.

  Incidentally, the configuration for swinging the swing bracket 31 up and down is not limited to the above-described configuration, and the screw member 41 may be driven by an actuator such as a motor. As the configuration for moving the swing bracket 31 up and down, various configurations such as a configuration for moving the swing bracket 31 up and down by an extendable actuator such as a small air cylinder can be adopted. . In addition, the swing bracket 31 can be configured to rotate largely upward so that cleaning is easy during cleaning.

  The width adjusting belt devices 25A and 25B can be adjusted in the width direction of the conveyor belt 7A at a position above the conveyor belt 7A in the first belt conveyor 7 on the downstream side of the thickness adjusting belt device 23. The interval between the width adjusting belt devices 25A and 25B is adjustable. The width adjusting belt devices 25A and 25B are arranged in the vicinity of the downstream end of the first belt conveyor 7, and the width in the width direction of the food dough 5 after the thickness is adjusted by the thickness adjusting belt device 23. This is a function that adjusts the pressure to the second belt conveyor 9 on the downstream side.

  More specifically, support brackets 45 are erected on both sides of the conveyor belt 7A near the downstream end of the first belt conveyor 7, and the support brackets 45 on both sides are provided by the first belt conveyor 7. Both ends of a guide bar 47 provided horizontally in a direction orthogonal to the conveying direction of the food dough 5 are supported. The support plates 53A and 53B are horizontally disposed at the lower ends of the support rods 51A and 51B provided to be suspended from the position adjustment blocks 49A and 49B which are provided on the guide bar 47 so as to be adjustable in position and fixed integrally therewith. Is provided.

  Drive pulleys 57A and 57B rotated by motors 55A and 55B mounted on the support plates 53A and 53B are vertically provided on the lower surfaces of the support plates 53A and 53B. The lower ends of the pulleys 57A and 57B are It is close to the upper surface of the conveyor belt 7A. Further, driven pulleys 59A, 59B; 61A, 61B are vertically and rotatably provided on the lower surfaces of the support plates 53A, 53B. The vertical driving pulleys 57A, 57B, driven pulleys 59A, 59B; 61A, 61B The width adjusting belts 63A and 63B made of an endless flat belt are wound around. The lower edges of the width adjusting belts 63A and 63B are in contact with the upper surface of the conveyor belt 7A.

  The width adjusting belts 63A and 63B serve to regulate and adjust the width dimension of the food dough 5 by sandwiching the food dough 5 from both sides in the width direction, and upstream of the thickness width adjusting means 21. Inclined portions 65A and 65B (see FIG. 3) that are inclined with respect to the conveying direction of the food dough 5 so that the width adjusting belts 63A and 63B are separated from each other toward the side. In other words, the inclined portions 65A and 65B of the width adjusting belts 63A and 63B act to bring the food dough 5 conveyed in the downstream direction by the conveyor belt 7A in the first belt conveyor 7 toward the center in the width direction. It is what you make.

  In the width adjusting belts 63A and 63B, on the downstream side of the inclined portions 65A and 65B, in order to regulate the width of the food dough 5 brought toward the center side, a width regulating portion 67A parallel to the conveying direction. , 67B. Accordingly, the food dough 5 is always regulated to a substantially constant thickness and a substantially constant width by passing between the width adjusting belts 63A and 63B in the width adjusting belt devices 25A and 25B.

  As described above, when the food dough 5 is regulated to a substantially constant thickness and width, the food dough 5 is conveyed from the first belt conveyor 7 on the upstream side to the second belt conveyor 9 on the downstream side. On the second belt conveyor 9, it is extended into a sheet-like fabric having a predetermined thickness.

  That is, dough pressing means 69 for pressing the food dough 5 between the second belt conveyor 9 and the conveyor belt 9A is provided above the conveyor belt 9A. The cloth presser 69 is configured to be rotatable upward.

  More specifically, as shown in FIG. 3, a base plate 71 is integrally provided on the rear side (upper side in FIG. 3) of the frame 3, and on the base plate 71, the conveying direction of the food dough 5 is provided. A rotating shaft 73 parallel to (left and right in FIG. 3) is rotatably supported via a bearing 75, and a conveyor frame 77 of the dough pressing means 69 is integrally formed on the rotating shaft 73. One end of the supported support beam 79 is integrally fixed. A worm wheel 81 provided integrally with one end of the rotating shaft 73 includes a worm 87 provided on a rotating shaft 85 that is supported horizontally and rotatably on a gear box 83 erected on the base plate 71. Is engaged.

  Accordingly, the handle 89 attached to the rotary shaft 85 is operated to rotate the worm 87, and the rotary shaft 73 is rotated forward and backward via the worm wheel 81, whereby the front side of the conveyor frame 77 (FIG. 3). Can be rotated up and down around the rotation shaft 73. That is, by rotating the conveyor frame 77 upward, the second belt conveyor 9 and the conveyor frame 77 can be easily cleaned.

  In the normal state, the front side of the conveyor frame 77 is fixed to the frame 3 by a normal locking device 78 (see FIG. 1), and the lock device 78 is unlocked to rotate upward. It can move.

  The conveyor frame 77 includes a central frame 77A integrated with the support beam 79, an upstream frame 77B provided on the upstream side of the central frame 77A so as to be vertically adjustable, and a vertically adjustable side on the downstream side of the central frame 77A. And a downstream frame 77C. More specifically, the upstream frame 77B and the downstream frame 77C are individually adjusted up and down by rotating adjustment handles 91A and 91B that are rotatably provided in the center frame 77A.

  The upstream frame 77B and the downstream frame 77C can be adjusted up and down by rotating the adjustment handles 91A and 91B. For example, the upstream frame 77B and the downstream frame 77C can be attached to the central frame 77A. On the other hand, each of the rotating support shafts (not shown) supported so as to be individually movable up and down is provided with a worm wheel (not shown), and the worm wheel and the worm rotated by the adjusting handles 91A and 91B are engaged with each other. be able to. That is, it can be set as the structure similar to the structure to which the said conveyor frame 77 is rotated up and down. As the configuration for adjusting the upstream frame 77B and the downstream frame 77C up and down with respect to the central frame 77A, various configurations can be adopted as in the configuration for adjusting the swing bracket 31 up and down. More detailed explanation is omitted.

  A drive pulley 95 that is rotated by a motor 93 attached to the downstream frame 77C is rotatably provided on the downstream end side of the downstream frame 77C, and a driven pulley is provided on the upstream end side of the upstream frame 77B. 97 is rotatably provided. A cloth presser member 99 made of an endless flat belt is wound around the drive pulley 95 and the driven pulley 97.

  The flat belt 99 as a material pressing member wound around the driving pulley 95 and the driven pulley 97 is inclined so that the distance from the conveyor belt 9A in the second belt conveyor 9 becomes narrower toward the downstream side. As described above, by adjusting the vertical position of the upstream side frame 77B, the distance between the driven pulley 97 and the conveyor belt 9A and the thickness of the food dough 5 carried into the spreading region 101 can be adjusted. is there. Then, by adjusting the vertical position of the downstream frame 77C, the distance between the drive pulley 95 and the conveyor belt 9A, that is, the thickness of the food dough 5 carried out from the spreading region 101 can be adjusted. Is.

  The spreading action area 101 is an area that acts to spread the food dough 5 whose thickness and width dimensions are adjusted to predetermined dimensions by the thickness width adjusting means 21 into a thin sheet-like dough, The belt conveyor 9 is provided between the upstream end and the downstream end and in a region between the driving pulley 95 and the driven pulley 97. The extending action region 101 is provided with a plurality of plate-like swinging members 103 that press the conveyor belt 9A of the second belt conveyor 9 toward the flat belt 99 so as to be swingable in the vertical direction.

  More specifically, as conceptually and schematically shown in FIGS. 4 and 5, the dough pressing portion 103 </ b> A long in the conveying direction of the food dough 5 is provided in the area surrounded by the conveyor belt 9 </ b> A. A swing member 103 is provided in parallel in a horizontal direction orthogonal to the transport direction. The dough pressing portion 103A serves to press the food dough 5 against the dough pressing member 99 via the conveyor belt 9A.

  Then, in order for the amplitude in the vertical direction of the fabric pressing portion 103A in the swing member 103 to increase the amplitude on the downstream end side relative to the amplitude on the upstream end side, the upstream end side of the fabric pressing portion 103A in the swing member 103 is The frame 3 is pivotally supported by a support shaft 105 provided horizontally. A swinging member swinging means 107 is provided to swing each swinging member 103 individually around the support shaft 105.

  More specifically, an eccentric cam engagement portion 103B such as an opening portion or a long hole opening in the horizontal direction is formed at the end portion on the downstream end side of each swing member 103. An eccentric cam 113 attached to a cam shaft 111 rotated by a motor 109 is engaged with the eccentric cam engaging portion 103B. The cam shaft 111 is provided on the frame 3 in a horizontal direction perpendicular to the conveying direction of the food dough 5. The cam shaft 111 includes a plurality of cam members 111 corresponding to the swing members 103. An eccentric cam 113 is provided in parallel.

  With the above configuration, when the motor 109 is driven to rotate forward under the control of the control device 11 and the cam shaft 111 is rotated forward, the eccentric cams 113 are integrally rotated. The food dough 5 on the conveyor belt 9A is pressed and extended to the upper dough pressing member 99 via the conveyor belt 9A. At this time, as shown in FIGS. 6 (A) and 6 (B), the pressing action of the food dough 5 against the dough holding member 99 moves sequentially from the center in the width direction of the food dough 5 to both sides. The eccentric cam 113 is attached to the camshaft 111 by sequentially shifting the phase. In addition, since this kind of structure is well-known by the said patent document 1, for example, more detailed description is abbreviate | omitted.

  Therefore, when the camshaft 111 is rotated forward, the swinging member 103 swings up and down, and the swinging operation causes pulsation that sequentially moves from the center in the width direction of the food dough 5 to both sides. 5 is performed. Further, when the motor 109 is driven in reverse rotation under the control of the control device 11 to reversely rotate the cam shaft 111, the vertical movement of the swinging member 103 is shifted from both sides in the width direction of the food dough 5 to the central portion side. The pulsation which moves sequentially is performed and the spreading | diffusion action of the food dough 5 is performed.

  By the way, the configuration of the swinging member swinging means 107 that swings the swinging member 103 up and down is not limited to the above configuration, and the following configuration is also possible. That is, the swinging member 103 is integrally provided with a downward extending portion extending downward from the vicinity of the support shaft 105, and the swinging member 103 is configured in a bell crank shape. Further, an eccentric cam engaging portion such as a long hole that is long in the vertical direction is provided in the downward extending portion, and an eccentric cam provided on the cam shaft can be engaged with the eccentric cam engaging portion. It is.

  In the swing member swinging means 107, the cam shaft 111 can be relatively adjusted in the direction of approaching and moving away from the support shaft 105. With such a configuration, the amplitude due to the swing of the swing member 103 can be adjusted.

  A thickness detection sensor 115 is provided as a thickness detection means for detecting the thickness of the food dough 5 carried from the thickness width adjusting means 21 to the spreading action region 101. The thickness detection sensor 115 is composed of, for example, a distance sensor using reflection of laser light, and the thickness of the central portion in the width direction of the food dough 5 immediately after passing through the width adjusting belt devices 25A and 25B. Is attached to the tip of the sensor bracket 117 provided in the upstream frame 77B.

  In the configuration as described above, when the food dough 5 such as bread dough, such as a bar having an appropriate length, is supplied from the food dough supply means 19 onto the conveyor belt 7A of the first belt conveyor 7, the food dough is conveyed by the conveyor. It is conveyed to the thickness width adjusting means 21 by the belt 7A. The food dough 5 carried into the thickness width adjusting means 21 is sandwiched between the flat belt 39 and the conveyor belt 7A in the thickness adjusting belt device 23 whose height has been adjusted in advance, and has a preset thickness. It is molded to the size.

  Thereafter, the width direction dimension of the food dough 5 is regulated by the width adjusting belts 63A and 63B in the pair of width adjusting belt devices 25A and 25B that are adjusted in advance so as to regulate the width dimension of the food dough 5 to a predetermined width. As a result, the thickness of the food dough 5 is slightly increased, and the food dough 5 is formed into a food dough having a substantially constant thickness and a substantially constant width in cross section. Then, the food dough 5 having a substantially constant thickness and a constant width is carried into the spreading action region 101.

  Since the thickness detection sensor 115 is provided on the upstream side of the spreading action area 101, the thickness and width dimension of the food dough 5 carried into the spreading action area 101 are always kept substantially constant. . That is, when the thickness of the food dough 5 detected by the thickness detection sensor 115 is larger than the allowable value, the conveyance speed of the food dough 5 by the conveyor belt 7A and the flat belt 39 is controlled under the control of the control device 11. Is controlled so that the conveyance speed of the food dough 5 is increased when the thickness detected by the thickness detection sensor 115 is smaller than an allowable value. The conveyance speed of the width adjusting belts 63A and 63B is set to be substantially the same as that of the downstream conveyor belt 9A.

  Therefore, the thickness dimension and the width dimension of the food dough 5 that have passed through the thickness width adjusting means 21 are always kept substantially constant.

  As described above, when the food dough 5 whose thickness and width dimensions are adjusted to be substantially constant by the thickness width adjusting means 21 is carried into the spreading action region 101, the conveyor belt 9A in the second belt conveyor 9 and Since the interval between the flat belts 99 serving as the dough-holding members is narrower toward the downstream side, the belts are gradually extended thinly, and a plurality of swinging members 103 provided in parallel with the extending action region 101 swing vertically. And the rocking | fluctuation of the rocking | fluctuation member 103 moves to both sides gradually from a center part, and the food dough 5 is pressed with respect to the dough pressing member 99, and is spread thinly gradually. That is, the spread of the food dough 5 is effectively performed by the fact that the interval between the conveyor belt 9A and the flat belt 99 is gradually narrowed and the plurality of swinging members 103 swings up and down. It is something that can be done.

  At this time, since the upstream end side of each swing member 103 is pivotally supported by the support shaft 105, the amplitude of each swing member 103 increases toward the downstream end side. Further, since the dough pressing member 99 is inclined so that the downstream end side is lower than the upstream end side, the food dough 5 is gradually thinner as it is conveyed downstream by the conveyor belt 9A in the second belt conveyor 9. And it is extended so that it may spread gradually in the width direction.

  That is, the spreading rate when the food dough 5 is thinly spread (the rate of change of the thickness of the food dough 5 with respect to the transport distance (movement distance) of the food dough 5) is compared with, for example, the case where the food dough 5 is sandwiched by a large-diameter roller Thus, the food dough 5 can be extended without giving a large stress. The thickness of the food dough 5 after being thinly extended by the swinging of each swinging member 103 is regulated by being sandwiched between the conveyor belt 9A and the flat belt as the dough holding member 99, and the next step Therefore, it is carried out while maintaining a preset thickness.

  In addition, by setting the distance between which the food dough 5 is extended by the conveyor belt 9A and the dough holding member 99 as shown in FIG. In other words, the food dough 5 is not unloaded immediately on the conveyor belt 119 after being spread into a thin sheet, but the time during which the food dough 5 is sandwiched between the conveyor belt 9A and the flat belt 99 is maintained to some extent. Therefore, the properties of the food dough 5 are stable and desirable.

  As can be understood from the above description, the long food dough 5 is thin and wide spread with a small spread rate, so that it can be spread with less stress. Further, since the food dough 5 carried into the spreading action region 101 is formed into a rectangular cross section having a predetermined thickness and a predetermined width, both side edges of the food dough 5 extended in a sheet shape are formed almost linearly. Compared with the case where it is formed in a wave shape, the utilization factor of the food dough 5 is improved, and waste due to trimming can be reduced.

  By the way, in the above description, by swinging the cam shaft 111 having the plurality of eccentric cams 113 in the forward direction, the swinging operation of the swinging member 103 in the vertical direction is performed on both sides from the center in the width direction of the food dough 5. It explained that the pulsation which moves sequentially to. As described above, when the rocking member 103 is repeatedly swung in the vertical direction so as to perform pulsations that sequentially move from the central portion in the width direction of the food dough 5 to both sides, the central portion in the width direction of the food dough 5 is obtained. Tends to cause the flow of the food dough 5 to both sides, and the thickness of the food dough 5 on both sides in the width direction may be larger than the thickness of the central portion in the width direction of the food dough 5.

  Therefore, when the camshaft 111 is rotated in the reverse direction, the swinging motion of the swinging member 103 swings so as to perform a pulsation that sequentially moves from both sides in the width direction of the food dough 5 to the center in the width direction. Will do. In this way, when the rocking member 103 is swung so as to perform pulsation that sequentially moves from both sides in the width direction of the food dough 5 to the center side, the food from the both sides in the width direction of the food dough 5 to the center side. The flow of the dough 5 tends to occur. Therefore, it can suppress that both sides become thicker than the center part of the width direction of the food dough 5. FIG.

  As already understood, when the cam shaft 111 provided with the plurality of eccentric cams 113 is rotated forward, the food dough 5 tends to be thin at the center in the width direction. And if the said cam shaft 111 rotates reversely, it exists in the tendency for the center part of the width direction of the food dough 5 to become thick. Therefore, it is possible to perform the spreading action of the food dough 5 by only rotating the camshaft 111 forward or reverse. However, the forward rotation and reverse rotation of the camshaft 111 are alternately or alternately every several rotations, or after the extension operation by forward rotation (or reverse rotation), the extension operation by reverse rotation (or forward rotation) is performed. It is desirable to perform the spreading action of the food dough 5 by appropriately combining the forward rotation and the reverse rotation of the camshaft 111 as is done.

DESCRIPTION OF SYMBOLS 1 Food dough extending apparatus 5 Food dough 7 1st belt conveyor 7A Conveyor belt 9 2nd belt conveyor 9A Conveyor belt 11 Control apparatus 19 Food dough supply means 21 Thickness width adjusting means 23 Thickness adjusting belt apparatus 25A, 25B Width adjusting belt Device 31 Oscillating bracket 39 Flat belt 47 Guide bar 49A, 49B Position adjustment block 53A, 53B Support plate 63A, 63B Width adjustment belt 65A, 65B Inclined portion 67A, 67B Width regulating portion 69 Dough holding means 77 Conveyor frame 77A Central frame 77B Upstream frame 77C Downstream frame 99 Material holding member (flat belt)
DESCRIPTION OF SYMBOLS 101 Extension action area | region 103 Oscillation member 103A Material | dough press part 103B Eccentric cam engaging part 105 Support shaft 107 Oscillation member oscillation means 111 Cam shaft 113 Eccentric cam 115 Thickness detection sensor (thickness detection means)

Claims (6)

  A method of extending a long food dough conveyed in a longitudinal direction by a belt conveying means into a sheet shape, wherein a dough pressing portion long in the conveying direction is provided in an extending action region for performing an extending action of the food dough A plurality of swinging members provided in parallel in a direction perpendicular to the conveying direction, and the amplitude of the vertical movement on the downstream end side is larger than the amplitude of the vertical movement on the upstream end side in the fabric pressing portion In order to do so, the upstream end side of the fabric pressing portion in each swing member is pivotally supported so as to swing up and down, and the long length conveyed downstream by each fabric press portion in each swing member The dough pressing means provided with the food dough facing each other is pressed and gradually spreads thinly, and the dough pressing portions are swung in the vertical direction on both sides from the center of the plurality of dough pressing portions arranged in parallel. Or sequentially from both sides to the center The food dough gradually presses spreading the width direction is in parallel direction of each fabric pressing members, spreading method of the food dough, which comprises spread over the food dough that is elongated in the sheet I.   The method for extending a food dough according to claim 1, wherein the thickness dimension and the width dimension of the long food dough conveyed to the position where the dough pressing portion of each swing member is pressed and extended are always substantially constant. A method for extending a food dough characterized by adjusting.   The food dough extending method according to claim 1 or 2, wherein the food dough is placed between the belt conveying means and the dough pressing means even on the downstream side of the portion where the amplitude of vertical movement of each swinging member is maximum. A method for extending a food dough, characterized in that it is sandwiched and conveyed.   A food dough extending device for extending a long food dough conveyed in the longitudinal direction by a belt conveying means into a sheet shape, in the extending action region for performing the extending action of the food dough, in the carrying direction A plurality of oscillating members provided with long dough pressing portions are provided in parallel in a direction orthogonal to the transport direction, and the upper and lower ends on the downstream end side of the amplitude of the up and down movement on the upstream end side in the dough pressing portion In order to increase the amplitude of movement, the upstream end side of the fabric pressing portion in each swinging member is pivotally supported so as to be swingable up and down, to swing each swinging member individually, and Oscillating member oscillating means for sequentially oscillating each fabric pressing portion in the vertical direction from the central portion to both sides of the plurality of fabric pressing portions provided in parallel or from both sides to the central portion; The rocking of the food dough facing the rocking member Food dough extending apparatus characterized in that it comprises a fabric pressing means for restricting movement of the direction.   5. The food dough spreading apparatus according to claim 4, wherein the thickness width for adjusting the thickness dimension and the width dimension of the food dough conveyed to the spreading action area to the upstream side of the spreading action area is always substantially constant. A food dough spreading apparatus comprising an adjusting means.   6. The food dough extending apparatus according to claim 5, further comprising a thickness detecting means for detecting the thickness of the food dough at a position corresponding to the thickness width adjusting means, and a detection result of the thickness detecting means. A food dough spreading apparatus, comprising: a carry-in speed control means for controlling a feed speed of the food dough to the thickness adjusting means.