JP4403120B2 - Food dough conveying apparatus and conveying method - Google Patents

Description

The present invention relates to a transport apparatus and a transport method for transferring food dough such as pizza dough and cookie dough between transport apparatuses having different transport speeds.

For example, a large number of conveyors are used to convey pizza dough in a production line such as pizza. In such a production line, the transport speed of each transport conveyor is set in accordance with the processing cycle of each processing step. Therefore, the conveyance speed may be different between the upstream conveyor and the downstream conveyor on the production line. Conveying conveyors with different conveying speeds are connected in series, and when the pizza dough as a conveyed product is conveyed by these conveying conveyors, there is a problem that the elastic pizza dough is deformed by the action of pulling and traffic jams due to the difference in speed of the conveying conveyors before and after there were.

Therefore, conventionally, there is a transport apparatus that provides an intermediate conveyor between an upstream transport conveyor and a downstream transport conveyor having a transport speed different from that of the upstream transport conveyor, and accelerates or decelerates the transport speed of the intermediate conveyor. The conveying device includes three belt conveyors (incoming conveyor, interval setting conveyor, and interval holding conveyor from the upstream side) arranged in series, and further includes detection means for detecting the distance between conveyed items. Then, the conveyance speed of the carry-in conveyor as the variable speed conveyor is controlled according to the speed difference between the carry-in conveyor and the interval setting conveyor, and the conveyance speed of the gap setting conveyor as the variable speed conveyor based on the detection signal of the detection means Is controlled so as to change the distance between the conveyed objects (for example, Patent Document 1).

In addition, as a conveying device that transfers the dough sheet between the conveying devices, stacking of the dough sheet for transferring the dough sheet from the first conveying device to the second conveying device disposed below the downstream end side of the first conveying device. There was a device. The first transport device is provided with a front-end transport section disposed on the downstream end side thereof so as to be capable of reciprocating along the transport direction (for example, Patent Document 2).

In addition, as another transport device, a roller conveyor composed of a plurality of free rollers is disposed between a transport path (upstream transport conveyor) and a transport path (downstream transport conveyor) having a speed difference from the transport path. There is a thing (for example, patent document 3).
JP-A-6-127659 Japanese Patent Laid-Open No. 7-213216 Japanese Patent No. 43-18059

However, the transport device disclosed in Patent Document 1 has a problem that the transport time cannot be shortened because the transport speed of the interval setting conveyor can be controlled only after the transported object is transferred to each conveyor. Moreover, the structure of the space | interval setting conveyor provided in the middle is complicated, and there exists a problem that manufacturing cost becomes high. Furthermore, when transporting food dough such as pizza dough or cookie dough as a transported product, the conveyor provided in the middle must be approximately the same as or longer than the length of the transported product, and the length of the production line There is a problem that cannot be shortened.

Further, in the transport device disclosed in Patent Document 2, the transport directions of the first transport device and the second transport device are disposed so as to be orthogonal to each other. Similarly, there is a problem that the transfer time cannot be shortened because the transfer speed of the first or second transfer device cannot be controlled unless the transferred object is transferred to each conveyor. In addition, there is a problem in that the configuration of the reciprocating tip transport unit is complicated and the manufacturing cost increases.

Further, in the transport device disclosed in Patent Document 3, a plurality of free rollers are arranged in the middle of the front and rear transport paths, but the transported object is a product in the manufacturing industry field, that is, a rigid body or the like. In a certain pizza dough or the like, the problem of deformation caused by the action of pulling or traffic jam still remains unsolved when the conveyed product is placed on both the conveying path and another conveying path having a speed difference.

The present invention solves the above-mentioned problem, for example, the structure is simple as a transport means for transferring food dough easily deformed by external force such as pizza dough or cookie dough between transport devices having different transport speeds, Furthermore, the present invention provides a transport method and apparatus capable of shortening the transport time.

The present invention was made in view of the problems as described above, a variable speed conveyor that conveys food dough at an alternate conveying speed of low speed and high speed, a roller conveyor that is provided with a plurality of free rollers, and Low-speed conveyors that convey food dough at a low conveyance speed are arranged in series, and are arranged so that the presence of individual food doughs can be detected above and between the conveyors and the food dough can be detected simultaneously. Two detection devices and a control device that shift-controls the conveyance speed of the variable speed conveyor based on a detection signal from the detection device are provided, and the control device detects the food dough at the same time and detects the detection signal. Is output to the control device, the variable speed conveyor is rotated at a low conveyance speed, and is provided above the vicinity between the roller conveyor and the low speed conveyor. Conveying the food dough when only the detection device has a detection signal by sensing the food dough is outputted to the control device, characterized in that the control to rotate driving the variable speed conveyor at a high conveying speed Device.

According to the present invention, the apparatus is not provided with a complicated configuration such as a tip conveyance unit or a distance setting conveyor as in the prior art, but is constituted by a roller conveyor provided with a plurality of freely rotatable rollers. Can be simplified, and the manufacturing cost can be kept low. In addition, it is possible to shorten the conveying length of the roller conveyor as compared with the conventional intermediate conveyor, which is effective for space saving.

In addition, the transfer speed of the variable speed conveyor can be controlled only after the transfer of the transferred objects to the respective conveyors is completed as in the prior art. Since the transfer speed can be controlled, the transfer time can be shortened in the length of the roller conveyor in the transfer direction.

In addition, a detection device that detects the end of the food dough to be conveyed is provided, and each conveyor is controlled based on a detection signal from the detection device, so that the food dough can be reliably transferred without being deformed by pulling or congestion. It becomes possible.

Hereinafter, a transport apparatus 1 according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory front view showing an outline of the transfer apparatus 1. FIG. 2 is an explanatory front view illustrating a process of conveying the dough sheet D.

In the first embodiment, a case will be described in which a substantially circular dough sheet D obtained by flattening a dough ball DB divided and rounded into a fixed amount by a spreader 7 described later is conveyed. First, each configuration shown in FIG. 1 will be schematically described. A dough conveyor DB that conveys a fixed amount of dough balls DB rounded by a known rounding device (not shown) at a substantially constant interval and the dough balls DB are extended to a substantially circular dough sheet D on the downstream side (right side in FIG. 1). The extending conveyor 6 is continuously provided, and the conveying device 1 according to the present invention is continuously provided downstream thereof.

The carry-in conveyor 5 is a belt conveyor provided with an endless conveyance belt 51 and a control motor 53 that rotates the conveyance belt 51, and is a constant speed conveyor that rotates at a predetermined conveyance speed V1. The extension conveyor 6 is an endless conveyor belt 61 and a belt conveyor provided with a control motor 63 that rotates the conveyor belt 61, and is an intermittent conveyor that repeatedly stops and rotates. The conveyance speed of the extension conveyor 6 is set to be the same as the conveyance speed V <b> 1 of the carry-in conveyor 5. Moreover, the photoelectric sensor 65 as a detection apparatus which detects the dough ball DB conveyed by the side part of the extension conveyor 6 is provided.

An extension device 7 is provided above the extension conveyor 6 to extend the dough ball DB to a substantially circular dough sheet D. The extension device 7 arranges a plurality of conical rollers 71 that rotate while revolving around the revolution axis CL at equal intervals radially with the tops as the inside, and the lower bus of each conical roller 71 is conveyed to the extension conveyor 6. It is provided so as to be parallel to the surface. The revolution and rotation of the conical roller 71 are driven by interlocking connection with control motors 73 and 75, respectively. The extension device 7 is provided so as to be movable up and down so as to approach and separate from the conveying surface of the extension conveyor 6. This vertical movement is controlled by providing a ball screw mechanism and a cam mechanism that are linked to a fluid pressure cylinder and a control motor (not shown). In the present embodiment, the extension device 7 is provided so as to be movable up and down, but the extension conveyor 6 can be provided so as to be movable up and down and can be moved closer to and away from the extension device 7.

In the transport device 1, a variable speed conveyor 2, a roller conveyor 3, and a low speed conveyor 4 are arranged in series from the upstream side. Further, photoelectric sensors S1 and S2 as detection devices for detecting the conveyance of the dough sheet D are provided above the downstream end of the variable speed conveyor 2 and the downstream end of the roller conveyor 3, respectively. Here, the distance between the photoelectric sensors S1 and S2 is a distance P1. Furthermore, the control apparatus 8 which controls the drive of each control motor is provided.

The variable speed conveyor 2 is a belt conveyor provided with an endless conveyance belt 21 and a control motor 23 that rotates the conveyance belt 21, and the conveyance speed alternately repeats a high speed and a low speed. More specifically, the conveyance speed at high speed is the same as the conveyance speed V1 of the carry-in conveyor 5, and the conveyance speed at low speed is the same as the conveyance speed V2 of the low-speed conveyor 4 which is lower than the conveyance speed V1 at high speed. Provided.

The roller conveyor 3 has five shafts 33 fixed at equal intervals between left and right frames 31 (front and rear of the paper surface in FIG. 1) connected to a conveyor frame (not shown) of the variable speed conveyor 2. A free roller 35 having no driving force is rotatably inserted. Accordingly, when the dough sheet D is conveyed from the variable speed conveyor 2 and transferred to the free roller 35, the free roller 35 is driven to rotate as the dough sheet D moves.

The low-speed conveyor 4 is a belt conveyor provided with an endless conveyance belt 41 and a control motor 43 that rotates the conveyance belt 41, and is a constant speed conveyor that rotates at a predetermined conveyance speed V2. As described above, the conveyance speed V2 is set lower than the conveyance speed V1. Further, the distance P1 between the downstream end of the variable speed conveyor 2 and the upstream end of the low speed conveyor 4 is set to approximately half the length (diameter) L of the dough sheet D in this embodiment.

The control device 8 drives and controls the drive devices such as the respective control motors, and includes an arithmetic processing device such as a sequencer via a motor driver such as an inverter. Moreover, it electrically connects with each said detection apparatus. The control device 8 drives the control motors and the like according to the operation pattern previously set in the arithmetic processing unit based on the detection signals from the detection devices 65, S1, and S2.

Next, a process until the dough ball DB is extended to the dough sheet D and conveyed to the low speed conveyor 4 will be described. The dough ball DB is transferred to the extension conveyor 6 that is transported at a speed V1 on the carry-in conveyor 5 at a substantially constant interval. The photoelectric sensor 65 detects the passage of the dough ball DB, and this detection signal (ON signal) is input to the control device 8. Based on this detection signal, the rotation of the extension conveyor 6 is stopped, and the dough ball DB is temporarily stopped at the lower position of the extension device 7 that has been waiting on the upper side. This stop position is controlled by the control device 8 so that the center of the dough ball DB and the revolution center axis CL of the extension device 7 substantially coincide.

When the rotation of the extension conveyor 6 stops, the extension device 7 descends according to a displacement pattern set in advance in the control device 8 while rotating and revolving the conical roller 71. Then, the dough ball DB is extended while being pressed by the rotating conical roller 71 and formed into a substantially circular dough sheet D.

After that, the spreader 7 rises again and waits until the next dough ball DB is conveyed at a predetermined position. The extension conveyor 6 rotates again at the conveying speed V1, and the dough sheet D is transferred to the variable speed conveyor 2 that rotates at the conveying speed V1.

In such extension molding, when the processing of the dough balls DB per piece is performed in a short time to improve the processing efficiency, the transfer time of the carry-in conveyor 5 and the extension conveyor 6 and the extension time of the extension device 7 are possible. It is effective to provide as short as possible. Therefore, in this embodiment, the conveyance speed V1 is set to a high speed.

Furthermore, the conveyance process shown in FIG. 2 is demonstrated. FIG. 2A shows a process in which the dough sheet D is transported on the variable speed conveyor 2 at the transport speed V1. FIG. 2B shows a process in which the dough sheet D reaches the downstream end of the variable speed conveyor 2. At this time, the photoelectric sensor S1 provided above the sensor senses the fabric sheet D and outputs a detection signal (ON signal) to the control device 8. The dough sheet D is further conveyed by the variable speed conveyor 2, and a part of the dough sheet D on the downstream side is transferred to the free roller 35.

FIG. 2C shows a process in which the dough sheet D reaches the downstream end of the roller conveyor 3. At this time, the photoelectric sensor S2 provided thereabove senses the fabric sheet D and outputs a detection signal (ON signal) to the control device 8. The photoelectric sensor S1 also senses the fabric sheet D. The control device 8 outputs a deceleration command to the variable speed conveyor 2 based on the detection signal from the photoelectric sensor S2, and the variable speed conveyor 2 decelerates the conveyance speed to a speed V2 lower than the speed V1 and rotates. . The dough sheet D is transported at a transport speed V <b> 2 in a state where a part of the downstream side of the dough sheet D is transferred to the low-speed conveyor 4 and placed on the variable speed conveyor 2, the roller conveyor 3, and the low-speed conveyor 4 at the same time.

FIG. 2D shows a process in which the upstream end of the dough sheet D reaches the downstream end of the variable speed conveyor 2. Immediately after this, the photoelectric sensor S1 does not sense the fabric sheet D, and a non-detection signal (off signal) is input to the control device 8 (in other words, the detection signal is not input to the control device 8). The control device 8 outputs an acceleration command to the variable speed conveyor 2 based on the non-detection signal, and the variable speed conveyor 2 rotates at the conveyance speed V1. And the dough sheet D is conveyed by the conveyance speed V2.

FIG. 2E shows a process in which the upstream end of the dough sheet D passes the downstream end of the roller conveyor 3 and the entire dough is placed on the low speed conveyor 4. In addition, the photoelectric sensor S2 does not sense the fabric sheet D, and a non-detection signal is input to the control device 8. By repeating a series of steps, a plurality of dough balls DB are formed into a substantially circular dough sheet D and sequentially conveyed to the low speed conveyor 4.

The dough sheet | seat D mounted and conveyed by the low speed conveyor 4 is transferred, for example to the well-known fermenter (proofer) which operates continuously. In such a fermentation apparatus, the processing capacity is often limited, and the conveyance speed is determined from the processing capacity. Therefore, in a present Example, the conveyance speed resulting from a fermentation apparatus turns into the conveyance speed V2 of a carrying-out conveyor.

As described above, by using the conveying device 1 according to the present invention, even when the pizza dough ball having elasticity is extended to the substantially circular dough sheet D and their sizes are slightly different from each other, Since the photoelectric sensors S1 and S2 directly detect the upstream end and the downstream end of the dough sheet D, the dough sheet D is not simultaneously placed across the conveyor having a speed difference, so that the dough sheet D is stretched or jammed. Therefore, it can be reliably conveyed without being deformed.

Next, shortening of the conveyance time by the conveyance device 1 will be described. FIG. 3 is an explanatory diagram for comparison with the conveying device 1 of the present invention. The same components as those in the first embodiment will be described using the same reference numerals. In the transport device 9 to be compared, a high speed conveyor 91, a variable speed conveyor 95, and a low speed conveyor 4 are arranged in series from the upstream side. Further, photoelectric sensors S1 and S2 as detection devices for detecting the dough sheet D are provided at the downstream end of the high-speed conveyor 91 and the downstream end of the variable-speed conveyor 95, respectively. Here, the distance between the photoelectric sensors S1 and S2 is a distance P2. The distance P2 is substantially the same as or longer than the length L of the dough sheet D.

The high-speed conveyor 91 includes an endless transfer belt 92 and a control motor 93 that rotates the transfer belt 92, and the transfer speed is a speed V1 (high speed). The variable speed conveyor 95 is a belt conveyor provided with an endless conveyance belt 96 and a control motor 97 that rotates the conveyance belt 96, and the conveyance speed alternately repeats speed V1 (high speed) and speed V2 (low speed). It is. And the low speed conveyor 4 is the same structure as the said Example.

The conveyance process of the dough sheet D in the conveyance device 9 will be described. FIG. 3A shows a process in which the dough sheet D is conveyed on the high-speed conveyor 91 at the conveyance speed V1. FIG. 3B shows a process in which the dough sheet D reaches the downstream end of the high speed conveyor 91. Then, a part of the downstream side of the dough sheet D is transferred to the variable speed conveyor 95 that rotates at the conveyance speed V1.

FIG. 3C shows a process in which the dough sheet D reaches the downstream end of the variable speed conveyor 95 and the entire dough sheet D is placed on the variable speed conveyor 95. At this time, the photoelectric sensor S2 provided thereabove senses the fabric sheet D and outputs a detection signal (ON signal) to the control device 8. The control device 8 outputs a deceleration command to the variable speed conveyor 95 based on the detection signal from the photoelectric sensor S2, and the variable speed conveyor 2 decelerates the conveyance speed to a speed V2 lower than the speed V1 and rotates. . The dough sheet D is transferred to a low-speed conveyor 4 in which a part of the dough sheet D on the downstream side rotates at a conveyance speed V2 (low speed).

FIG. 3D shows a process in which the upstream end of the dough sheet D reaches the downstream end of the variable speed conveyor 95. Immediately after this, the photoelectric sensor S2 does not sense the fabric sheet D, and a non-detection signal is input to the control device 8. The control device 8 outputs a shift command to the variable speed conveyor 95 based on the non-detection signal, and the variable speed conveyor 95 rotates at the transport speed V1.

In the conveying apparatus 1 according to the first embodiment, the sensor S1 senses the downstream end of the fabric sheet D (see FIG. 2B) until the sensor S2 no longer senses the fabric sheet D (FIG. 2E). Time) (reference time) T1 and in the transfer device 9 based on the comparative example, the sensor S2 detects the downstream end of the fabric sheet D (see FIG. 3B) and then the sensor S2 detects the fabric sheet D. The required time (transport time) T2 is compared until no more is detected (see FIG. 3D). The required times T1 and T2 are expressed by the following formulas 1 and 2, respectively, and the time difference T3 is expressed by the following formula 3.
Formula 1)
T1 = P1 / V1 + L / V2
Formula 2)
T2 = P2 / V1 + L / V2
Formula 3)
T3 = T2-T1 = (P2 / V1 + L / V2)-(P1 / V1 + L / V2) = (P2-P1) / V1
It becomes. As described above, the distance P2 is set to be approximately equal to or longer than the length L of the dough sheet D.

As can be understood from Equation 3, the time difference T3 is proportional to the difference between the distance P2 indicating the interval between the photoelectric sensors S1 and S2 and the distance P1. Further, it is inversely proportional to the conveyance speed V1. That is, as the distance P1 (in other words, the length of the conveying surface of the roller conveyor 3) is shorter than that of the conventional intermediate conveyor, the value of the time difference T3 increases and the effect of shortening the conveying time increases. In addition, the production line can be saved.

Next, a conveying device 1 according to a second embodiment of the present invention will be described based on the drawings. FIG. 4 is an explanatory front view showing an outline of the transfer apparatus 1. FIG. 5 is a front explanatory view showing a process of conveying the dough piece D. In addition, the same code | symbol is demonstrated about the structure similar to a 1st Example.

In the second embodiment, the transport apparatus 1 is suitable when the individual lengths of the transported objects are substantially constant. For example, the case where the strip-shaped dough piece D divided | segmented into predetermined length and supplied at substantially equal intervals from the continuous stick-shaped dough, such as the cookie dough extruded from the discharge apparatus provided with the screw conveyor, is demonstrated. First, each configuration shown in FIG. 4 will be schematically described. The variable speed conveyor 2 has a configuration in which the variable speed conveyor 2 shown in the first embodiment is provided with a pulse encoder 25 as a measuring device for measuring the transport distance. The pulse encoder 25 is connected to a control motor 23 that drives the conveyance belt 21 via a power transmission mechanism such as a gear train, and is proportional to the rotation of the control motor 23, that is, proportional to the conveyance distance of the conveyance belt 21. Then, a pulse signal is output to the control device 8, and the pulse signal is converted into a transport distance.

The roller conveyor 3, the low speed conveyor 4, and the control device 8 have the same configuration as that of the first embodiment. In addition, a photoelectric sensor S <b> 2 is provided above the downstream end of the roller conveyor 3 as a detection device that senses the dough piece D.

FIG. 5A shows a process in which the dough piece D is transported on the variable speed conveyor 2 at the transport speed V1. FIG. 5B shows a process in which the dough piece D reaches the downstream end of the variable speed conveyor 2. The dough piece D is further conveyed by the variable speed conveyor 2, and a part of the dough piece D on the downstream side is transferred to the free roller 35.

FIG. 5C shows a process in which the dough piece D reaches the downstream end of the roller conveyor 3. At this time, the photoelectric sensor S2 provided above senses the cloth piece D and outputs a detection signal (ON signal) to the control device 8. The control device 8 outputs a deceleration command to the variable speed conveyor 2 based on the detection signal from the photoelectric sensor S2, and the variable speed conveyor 2 decelerates the conveyance speed to a speed V2 lower than the speed V1 and rotates. . The control device 8 starts counting the number of pulses input from the pulse encoder 25 from the time when the detection signal from the photoelectric sensor S2 is input. Thereafter, a part of the dough piece D on the downstream side of the dough piece D is transferred to the low speed conveyor 4, and the control device 8 places the dough piece D across the variable speed conveyor 2, the roller conveyor 3, and the low speed conveyor 4 at the same time. Each conveyor is determined to be in the transported speed V2.

FIG. 5D shows a process in which the upstream end of the dough sheet D reaches the downstream end of the variable speed conveyor 2. A pulse output from the pulse encoder 25 that the variable speed conveyor 2 has transported the dough piece D from the state of FIG. 5C to the state of FIG. 5D (here, this transport distance is represented by Q). The number is counted by the control device 8. That is, the number of pulses corresponding to the conveyance distance Q is input to the control device 8 in advance, and it is determined that the fabric piece D has been conveyed by the distance Q by comparing the number of pulses with the counted number of pulses. Thereafter, the control device 8 controls the shift of the conveyance speed of the variable speed conveyor 2 to the speed V1. Then, the dough piece D is conveyed to the low speed conveyor 4, and the upstream end of the dough piece D passes through the downstream end portion of the roller conveyor 3 and the entire dough is placed on the low speed conveyor 4. In addition, the photoelectric sensor S2 does not sense the fabric sheet D, and a non-detection signal is input to the control device 8. By repeating a series of steps, the plurality of dough pieces D are sequentially conveyed to the low speed conveyor 4.

The description of the transfer device 1 according to the embodiment of the present invention is generally as described above, but the present invention is not limited to this and can be changed within the scope of the claims. For example, although the pulse encoder 25 is provided in the variable speed conveyor 2 in the second embodiment, even if the pulse encoder 25 is provided in the low speed conveyor 4 and the conveyance distance of the conveyance belt 41 is calculated and the variable speed conveyor 2 is shifted, the conveyance is performed. There is no deformation caused by pulling on the object or traffic jam, and it can be transferred reliably. Moreover, it is controllable even if photoelectric sensor S1 is provided above the downstream end part of the variable speed conveyor 2 instead of photoelectric sensor S2.

In the above embodiment, the upstream conveyor is described as a variable speed conveyor that rotates at a high speed and a low speed, and the downstream side is described as a low speed conveyor that rotates at a low speed. If the downstream side is a variable speed conveyor, the shipping time can be shortened in the same manner as in the embodiment.

In the present embodiment, the distance P1 between the downstream end of the variable speed conveyor 2 and the upstream end of the low speed conveyor 4 is set to be approximately half the length L of the food dough D. 1/3 or more than half may be sufficient, and it can change in the range in which food dough D is conveyed, without changing.

As described above, the conveyance device 1 of the present invention has a simpler configuration than the conventional conveyance device by providing the roller conveyor 3 including a plurality of freely rotatable rollers 35, and can keep the manufacturing cost low. It was possible to make a possible transfer device. Further, the conveyance time can be shortened in the length of the roller conveyor 3 in the conveyance direction. In addition, since a detection device for detecting the end of the food dough D to be conveyed is provided and each conveyor is controlled based on a detection signal from the detection device, there is no deformation due to pulling or congestion on the food dough D that is easily deformed. The transfer can be surely performed.

In addition, the photoelectric sensor S1 and S2 are installed above the downstream end of each conveyor, but may be above the upstream end of each conveyor or between each conveyor. That is, it is suitable for outputting a detection signal for sensing the food dough D to the control device 8 if it is above the vicinity between the conveyors.

It is front explanatory drawing which shows the outline | summary of the conveying apparatus 1 which concerns on the 1st Embodiment of this invention. It is front explanatory drawing which shows the process of conveying the fabric sheet D by the conveying apparatus. Front explanatory drawing which shows the process of conveying the fabric sheet | seat D by a comparative example. It is front explanatory drawing which shows the outline | summary of the conveying apparatus 1 which concerns on the 2nd Embodiment of this invention. It is front explanatory drawing which shows the process of conveying the fabric piece D in 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveying device 2 Variable speed conveyor 3 Roller conveyor 35 Free roller 4 Low speed conveyor 5 Loading conveyor 6 Spreading conveyor 7 Spreading device 8 Control device 9 Conveying device 91 High speed conveyor 95 Variable speed conveyor D Food dough (dough sheet, piece of dough)
L Length of food dough D (dough sheet, dough piece) P1, P2 distance (distance between S1 and S2)
S1, S2 Photoelectric sensor T1, T2 Time required T3 Time difference V1, V2 Transport speed

Claims (1)

A variable speed conveyor that conveys food dough at alternating speeds of low speed and high speed, a roller conveyor that can rotate freely with multiple free rollers, and a low speed conveyor that conveys food dough at a low speed are arranged in series. And based on the detection signal from the two detection devices arranged to detect the presence or absence of individual food dough above the vicinity between the conveyors and simultaneously detect the food dough There is provided a control device for controlling the shift of the conveying speed of the variable speed conveyor, and when the two detection devices sense food dough simultaneously and output a detection signal to the control device, the variable speed conveyor And the detection device provided only above the vicinity between the roller conveyor and the low-speed conveyor senses the food dough and sends a detection signal. Conveying apparatus for food dough and controls to rotate driving the variable speed conveyor at a high conveying speed when being output to the control unit.

Images