JP2000245329A - Method and apparatus for feeding weighed dough - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject method comprising such a process that a food dough is continuously formed into a band-like dough, which is then continuously weighed and cut on a weighing conveyor to accurately produce a dough of a given weight as a chunky dough with the cut end causing no deformation. SOLUTION: This method comprises the following process: (A) a continuous band-like dough D2 is conveyed and discharged onto a weighing conveyor 23, (B) the band-like dough D2 is continuously weighed by the conveyor 23, and the continuously weighed value is compared with a preset cut weight value, and the position at which the band-like dough D2 is to be cut when the above both the values coincide with each other is stored in an arithmetic unit and the dough D2 is conveyed further, (C) on the conveyor 23, when the above position comes to the position of a cutting means 21, the dough D2 is cut by the cutting means 21 in response to the instruction from the arithmetic unit to obtain a chunky dough D3, (D) the chunky dough D3 is separated from the resultant band-like dough D2, and (E) after ending the step D, the steps B to D are repeated successively to cut the band-like dough D2 plural times, thereby producing a plurality of chunky dough pieces D3.

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 supplying weighing dough, which continuously weighs and cuts a continuously supplied band-like dough, and continuously provides a certain chunk-like dough to a subsequent process. About doing.

[0002]

2. Description of the Related Art As for a conventional measuring dough molding, as shown in Japanese Patent Publication No. 46-6932,
The bar-shaped dough is weighed by a conveyor having a scale, and when it reaches a predetermined weight, is cut by a rotary cutter in front of the conveyor.

[0003] In the above-mentioned prior art, the dough is cut by a rotary cutter where there is no dough supporting surface between the weighing conveyor and the upstream conveyor. In such a case, it is difficult to accurately divide the dough because the fabric is deformed at the time of cutting. Further, the cloth adheres to the cutter or the conveyor belt and cutting is impossible.

[0004]

In the conventional weighing dough supplying means, it was not possible to continuously weigh the dough and cut it into a dough of constant weight to supply the dough.

[0005]

According to the first aspect of the present invention, (i) a step of forming and transporting a continuous band-like material, and (ii) a weight of the band-like material is continuously measured by a weighing conveyor. The continuous weighing value is compared with a preset cutting weight value, and the position at which the band-shaped material is to be cut when the continuous weighing value matches the set cutting weight value is stored in the arithmetic means, and the band-shaped material is stored. And (iii)
On the weighing conveyor, when the position to be cut of the conveyed band-shaped cloth comes to the position of the cutting means,
Cutting by the cutting means according to a command from the arithmetic means,
A step of obtaining a chunk-shaped dough, (iv) a step of separating the cut chunk-shaped dough from a continuous band-shaped dough, and supplying the same to a post-process, and (v) after the above (iv) step is completed, ii) a step of producing a plurality of chunk-like doughs by successively repeating the steps-(iv) to cut a continuous band-like dough a plurality of times to produce a plurality of chunk-like doughs. It is a supply method.

According to the second aspect of the present invention, a discharge conveyor for transporting a continuous belt-like cloth and a weighing conveyor having a load cell downstream of the discharge conveyor are connected and arranged, and the cloth is cut on the weighing conveyor. Equipment,
A measuring device for continuously measuring the weight of the dough conveyed to the weighing conveyor and determining the dough cutting position based on the measured value is provided, and the displacement of the weighing conveyor when the load exceeds the weighing maximum load is suppressed. A metering dough supply device provided with a stopper.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. After the food dough D1 obtained by kneading is stored in the hopper 11 of the band-shaped dough forming section 1, it is formed into a continuous band-shaped dough D2 and transported to the dough weighing and cutting section 2. The dough weighing and cutting unit 2 measures the weight of the belt-shaped dough D2, and cuts the dough at regular intervals to obtain a chunk-shaped dough D3. The chunk-shaped dough D3 separated from the belt-shaped dough D2 is sent to the dough ball dividing unit 4 after the weight of the dough is re-measured by the weighing conveyor 30.
The chunk-shaped dough D3 is divided into small balls of a predetermined size in the dough ball dividing unit 4, rounded and formed, discharged to a downstream process, conveyed to a dough ball transfer unit 6 via a conveyor 5 and continuously conveyed downstream. It will be transferred.

Referring to FIG. 1 to FIG. 4, the dough ball split supply method according to the embodiment of the present invention is a method in which a viscous food dough (for example, bread dough) D1 is divided into small balls and supplied. First, the strip-shaped dough forming section 1 is provided with a splitting cutter device 12 for discharging the food dough D1 to cut and split the food dough D1 at the lower opening portion of the hopper 11 that stores the food dough D1.

The above-mentioned split cutter device 12 is a known device as disclosed in, for example, Japanese Patent Application Laid-Open No. 9-220048, and will be briefly described as follows. That is, as shown in FIGS. 2 and 3, a pair of rotary shafts are provided rotatably near the lower opening of the hopper 11, and the pair of rotary shafts are synchronized with each other in the feed direction by the driving of the cutting motor. It rotates. A plurality of cutters are provided on each rotating shaft. Here, the tip of the pair of cutters comes into contact with each other by the synchronous rotation of the
By closing the lower opening, the food dough D1 can be divided and cut.

Water can be spray-applied to the cutter device 12 as an anti-adhesion material for preventing adhesion of the cloth.

Since the divided food dough sticks to a pair of corresponding cutters and may not drop smoothly by its own weight, it is desirable to perform the following operation.

That is, after the tips of the corresponding pair of cutters come into contact with each other to close the lower opening of the hopper 11, the pair of rotary shafts are rotated by a slight angle in the feed direction by driving the cutting motor. Then, the interval between the tip portions of the corresponding pair of cutters is increased to a predetermined interval (for example, 20 mm). As a result, the food dough D1 that has been divided and has not yet fallen can be extended right and left by the corresponding pair of cutters, and can slip and fall with the corresponding pair of cutters. Then, the pair of cutters is returned to the contact position again in synchronization with the direction opposite to the feed direction.
Also by this, a slip is again generated between the divided food dough and the corresponding pair of cutters, so that the divided food dough can be reliably dropped.

A conveyor 13 extending in the front-rear direction is provided below the splitting cutter device 12.
Is for continuously transporting a plurality of food doughs in the transport direction in a state where the leading end of the food dough D1 overlaps the rear end of the preceding food dough from above.

Below the front end of the conveyor 13, there is provided a forming feeder 14 which continuously feeds the food dough D1 downward while compressing and shaping the food dough D1. The forming feeder 14 comprises a pair of front sides, Rear side forming feed roller group 15F, 1
5R is provided. The pair of front-side and rear-side forming feed rollers 15F and 15R has a V-shape in which the opposing upper part is wide and the lower part is narrow. The front side forming feed roller group 15
F includes a front-side roller support member 16F and a plurality of front-side forming feed rollers 17F vertically arranged on the front-side roller supporting member 16F. Similarly, the rear-side forming and feeding roller group 15R supports the rear-side roller support member 15R. A member 16R;
The rear roller support member 16R is provided with a plurality of rear forming feed rollers 17R vertically arranged side by side. Here, the plurality of front-side forming feed rollers 17F and the plurality of rear-side forming feed rollers 17R rotate in the feed direction in synchronization with driving of a motor.

A pair of front and rear forming feed rollers 15
In order to promote the discharge action of the band-shaped food dough D2 from the discharge-side gap between the front roller support member 16R and the front roller support member 16R about the swing center on the upper end side.
It is configured to be swingable in a direction approaching and moving away from F. In order to swing the rear roller supporting member 16R,
A motor is provided at an appropriate position on the lower frame.

Incidentally, both the pair of front and rear forming feed rollers 15F and 15R may be synchronously swingable.

Water is spray-applied to the rollers of the forming and feeding device 14 in order to prevent sticking of the dough. Below the pair of front and rear forming feed rollers 15F, 15R, there is provided a discharge conveyor 18 for receiving the band-shaped food dough D2 and discharging it downstream.

The discharge conveyor 18 has a belt 1 at the downstream end.
9 is provided with a centering device 70 which can move in a direction perpendicular to the traveling direction. The configuration of the centering device 70 is, for example, a fixed frame 71 of the discharge conveyor 18.
In addition, a sliding arm 72 slidably mounted in a direction perpendicular to the traveling direction of the belt 19 supports a roller 74 that stretches the belt 19. The sliding arm 72 operates by the driving of a driving mechanism 73 such as a ball screw, and the belt 19 operates in the left-right direction (the direction perpendicular to the traveling direction) via the roller 74.

An operation signal of the centering device 70 is given by a cloth width detecting device 26 provided at an entrance of the conveyor 20 described later. The cloth width detecting device 26 is a sensor provided at the left and right ends of the conveying surface of the conveying conveyor 20 in the width direction. When the band-shaped cloth D2 passes through this portion, the cloth width detecting device 26 determines the distance to both ends of the band-shaped cloth. Then, the center of the cloth width of the band-shaped cloth D2 is calculated. The center is compared with a set value, and a correction signal is transmitted to the centering device 70.

FIGS. 5 to 8 show a method of dividing and weighing the band-shaped dough D2 according to the present invention. The method will be described below. There is a conveyor 20 connected to the band-shaped fabric forming section 1 and further provided with a fabric weighing and cutting section 2 for continuously measuring and cutting the weight of the band-shaped fabric D2 discharged from the band-shaped fabric forming section 1. The dough weighing and cutting section 2 includes a cutting device 21 above a weighing conveyor 23 connected to the transport conveyor 20. The cutting device 21 is a device for cutting a fabric by operating a cutter (not shown) on a conveyor supporting surface of a belt-like fabric D2 on a conveyor belt of a weighing conveyor 23 by a driving device (not shown). The arithmetic unit 25 issues a cutting command to the cutting device 21 based on a signal from the load cell 24 attached to the weighing conveyor 23.

The weighing conveyor 23 has a weighing section 32 supported by a base frame 28 via a load cell 23. The weighing conveyor 23 has a base 29 on a base frame 28 and the end of the load cell 24 is attached. At the other end of the load cell 24, a weighing section 32 of the weighing conveyor 23 is attached via a spacer 33. Therefore, when the woven cloth D2 is conveyed by the weighing section 32, the weight load of the woven cloth D2 is signaled from the load cell 24. Can be continuously obtained as a measured value.

When the cutting device 21 on the weighing conveyor 23 cuts the band-shaped cloth D2 according to the instruction of the arithmetic unit 25, the load cell 24 may be bent more than the limit, and the load cell 24 may be damaged. Load cell 24
In order not to damage the load cell 24, it is necessary not to bend the load cell 24 more than the limit. Here, a stopper 34 is provided so that a force exceeding a limit is not applied to the weighing conveyor 23 by the cutting device 21 in the cutting process. The stopper 34 is attached to the transport portion 33 and has a gap G between the stopper 34 and the base frame 28. The stopper 34 allows the deflection within the setting of the load cell 24 but does not bend even if a greater force is applied. It comes into contact with the frame 28. Thus, the load cell 24
Can be protected. Also, if there is no stopper during the cutting operation, the belt surface of the weighing conveyor may not receive the pressure of the cutting edge of the cutter 22 sufficiently and may not be able to cut the dough. However, the provision of the stopper allows the dough to be cut sufficiently. Can do it.

As another method, as shown in FIG.
A stopper 34 is provided on the frame 28 of the weighing conveyor 23, the stopper 34 is extended to the conveyor plate of the transport portion 33, and a gap G is provided between the stopper 34 and the conveyor plate to similarly protect the load cell 24. Out.

The chunk-shaped dough D3 cut from the band-shaped dough D2 is supplied via a weighing conveyor 30 to a dough ball dividing section 4 arranged downstream thereof. The weighing conveyor 30 is a load cell 31 for re-measuring the weight of the chunk-shaped dough D3.
It has. The dough ball dividing section 4 is provided with a dividing table 41 of a conveyor mechanism for receiving the cut and separated chunk-shaped dough D3 and placing it on standby.
1, a lowering unit 42 that descends toward the division table 41, cuts the chunk-shaped dough D3 into small sections, and performs an operation of rounding the cut dough.
Is provided.

The dividing and rounding device 42 has a well-known structure, for example, as shown in FIGS. 5 to 9 of British Patent No. 2192360. That is, there is a dough ball forming head that can move up and down with respect to the belt on which the chunk-shaped dough is placed, and the head is a dough holder ring that is open at the bottom, a pressure plate provided in the dough holder ring, and a pressure plate. It is constituted by a dough dividing knife which penetrates and is provided so as to form a dough holder ring in a predetermined section. The dough ball forming head descends and stores the chunky dough in the dough holder ring,
Then, the pressure plate is lowered to press the chunk-shaped dough to spread the dough throughout the dough holder ring, and then the knife is lowered to divide the dough equally. In this state, the divided dough is rolled by the head making a circular motion in the horizontal direction.

A transport conveyor 5 is arranged downstream of the dough ball dividing section 4 so as to receive the dough balls D4 discharged from the dough ball dividing section 4 and transport the dough balls D4 downstream.

The dough transfer section 6 is provided in connection with the transport conveyor 5, and the dough balls D4 intermittently carried out from the upstream.
Is continuously transported downstream. Conveyor 5
, A panner conveyor 61 is arranged. Panner tip 6 at the downstream tip of panner conveyor 61
Below the pan 2, a lower panner conveyor 63 is arranged.
The panner tip 62 slides back and forth in the traveling direction of the belt to continuously transfer the dough balls D4 to the panner lower conveyor 63. The lower panner conveyor 63 aligns and transfers the transferred dough balls D4 downstream.

Next, the operation of the embodiment of the present invention will be described.

After a large mass of food dough D1 obtained by kneading the food dough material by a well-known manufacturing method is stored in the hopper 11 of the band-shaped dough forming section 1, the dough is cut by the split cutter device 12, and the cut dough is overlaid. And feeds it to the forming and feeding device 14 and repeatedly presses and releases the dough.
Mold into 2 and discharge. Further, at this time, by spraying water, the adhesiveness of the dough in the band-shaped dough forming section 1 can be suppressed, and a dough having a constant width and thickness can be supplied downstream.

Fabric width detecting device 26 on conveyor 20
Thus, the position of both sides of the band-shaped cloth D2 is detected, and the center of the measured cloth is compared with the set value. If there is an error, a correction signal is transmitted to the centering device 70. Then, the centering device 70 is operated so that the center of the measurement cloth coincides with the set center position, the roller 74 at the downstream end of the discharge conveyor 18 moves left and right, and the belt-like cloth D2 on the conveyance surface of the conveyance conveyor 20. Is changed, the center position of the band-shaped cloth D2 is corrected as needed.

The strip-shaped dough D2 is formed and conveyed to the dough weighing and cutting section 2. The dough weighing and cutting unit 2 measures the weight of the band-shaped dough D2, and cuts it at a constant cutting weight in the next cutting device 21. The movement of each device at the time of this cutting will be described with reference to FIG. 5. The arithmetic unit 25 receives the measurement value from the load cell 24 with the increase of the band-shaped cloth D2 transferred to the weighing conveyor 23 and transferred. When it is compared with a preset cutting weight value and it is determined that the cutting weight value matches the cutting weight value, a cutting signal is sent from the arithmetic unit 25 to the cutting device 21 to perform a cutting operation. At this time, the position at which the band-shaped dough D2 should be cut is an intermediate portion between the rear end of the discharge conveyor 18 and the front end of the weighing conveyor 23, and the length of the dough is A. However, cutting is difficult at this intermediate position. Therefore, in the embodiment of the present invention, the cutter 2 of the cutting device 21 is used.
2 is placed on the belt of the weighing conveyor 23, and the cutting operation is delayed until the position where the band-shaped material is to be cut reaches the cutting position of the cutter 22.

The delay of the cutting operation is based on the fact that the position to be cut is conveyed and moved by the distance L from the front end of the weighing conveyor 23 to the cutter 22 by a moving distance signal from the rotary encoder 27 of the conveying conveyor 20. 25 (see FIG. 6). Weighing conveyor 2
3, when the cutter 22 performs a cutting operation, the impact of the cutter 22 is transmitted to the weighing conveyor and the load cell 24 is cut.
In order to prevent a displacement exceeding the maximum weighing value from occurring, a stopper 34 for preventing displacement of the load cell 24 is provided to prevent the load cell 24 from being damaged.

Simultaneously with this cutting, the conveyance of the conveyor 20 stops, and the transfer of the band-like cloth D2 on the upstream side of the cutting device 21 to the weighing conveyor 23 is stopped.
The weighing conveyor 23 switches at high speed, and the cut chunk-shaped dough D3 is separated and transported downstream. In addition, when the adhesiveness of the dough is high, and the transport conveyor 20 is not able to completely separate the dough simply by stopping the transport after the cutting operation, the transport conveyor 20 is slightly reversed as shown in FIG. The cut portion of the fabric can be positively separated.

The timing of the next weighing and cutting of the band-shaped dough D2 is as follows. The chunk-shaped dough D3 is transferred from the weighing conveyor 23 to the weighing conveyor 30, and when the weighing conveyor 23 becomes empty, the transport conveyor 20 resumes the transfer, and the weighing and cutting is started. To resume. Further, the weighed conveyor 30 re-weighs the cut chunk-shaped dough. By this re-weighing, the data of the net weight of the chunky dough D3 is measured, and the arithmetic unit 2
5, the accuracy of the cutting timing of the next band-shaped cloth D2 can be increased and the cloth can be accurately obtained.

The chunk-shaped dough D3 separated from the band-shaped dough D2 in the dough weighing and cutting section 2 is sent to the dough ball dividing section 4 via the weighing conveyor 30. At this time, the chunky dough D
3 is corrected in the width direction by the centering device 7, and is centered at the center position of the subsequent dough ball dividing unit 4, so that the dough ball dividing unit 4 performs accurate dough ball dividing. Things. Further, this chunk-shaped dough is a substantially rectangular parallelepiped chunk-shaped dough (thick cut dough) having a fixed width and a fixed weight, and if the chunk-shaped dough 4 is cut and divided in a uniform section by the subsequent dough ball dividing unit 4, the unevenness may occur. Each of the samples without the mark is capable of obtaining a uniform small ball dough.

However, if the thickness of the chunk-shaped dough D3 is reduced, the chunk-shaped dough D3 becomes longer and protrudes from the dividing device 42, and the weight of the product is reduced by the amount protruding from the dividing device 42. May be done. In order to prevent this, it is necessary to reduce the length of the chunk-shaped dough D3 entering the dividing and rounding device 42. Here, the length of the chunk fabric D3 can be changed as follows.

As shown in FIG. 8, the transport speed of the weighing conveyor 23 is V1, and the transport speed of the weighing conveyor 30 is V2.
When V1> V2 is set, the length B of the chunk-shaped dough D3 when the chunk-shaped dough D3 is transferred to the weighing conveyor 30 may be shorter than the length A of the chunk-shaped dough D3 on the weighing conveyor 23. it can. Since the length A of the chunk-shaped dough D3 can be known from the moving distance signal of the rotary encoder 27 of the transport conveyor 20, the length B of the chunk-shaped dough D3 can be adjusted so as to be accommodated in the division rounding device 42. it can.

When the length A of the chunk-shaped material D3 is short, it can be handled by the division rounding device 42. Therefore, only when the length of the chunk-shaped material D3 is longer than the division rounding device 42, the chunk-shaped material The length of the fabric of D3 will be changed.

The chunk-like dough D
3 is divided into small balls of a predetermined size, further rounded and discharged to a downstream process.

The dough balls of this divided group are transported by the transport device 5,
It is transported to the dough ball transfer section 6 and transferred so as to be continuously transported downstream.

Although the centering device is provided at the position of the cutting device 2 in the present embodiment, it is not particularly limited to this position. For example, as another example, the dough that has already been cut into the chunk-shaped dough D3 and conveyed is at an accurate position without deviation with respect to the width direction (perpendicular to the traveling direction) of the division table 41 of the dough ball division unit 4. In order to be supplied, a centering device may be provided immediately before the division table 41. In this case, a centering device may be provided on the weighing conveyor 30 so that the weighing conveyor 30 can be moved in the width direction. In this case, the cloth width detecting device may be provided at the entrance of the divided table or at the position of the cloth width detecting device 26. The structure of the centering device, which enables the conveyor to move in the width direction, is similar to the centering device 70 described above, in which a sliding portion is provided on a support pedestal attached to a fixed frame. This can be implemented by making the driving unit itself movable in the width direction.

[0042]

According to the first aspect of the present invention, the food dough is continuously formed into a band-shaped dough, continuously weighed, and cut on a weighing conveyor to obtain a chunk-shaped dough whose cut portion is not deformed. It is possible to accurately and continuously produce dough of a constant weight.

According to the second aspect of the present invention, since the weight of the belt-shaped cloth is measured and the chunk-shaped cloth having a constant weight is cut, the cloth having a uniform weight can be continuously produced more accurately.

[0044]

[Brief description of the drawings]

FIG. 1 is an overall side view of a dough ball forming and supplying system according to the present invention.

FIG. 2 is a cross-sectional side view of a band-shaped material forming section.

FIG. 3 is a view taken along the line II in FIG. 2;

FIG. 4 is a side view of a band-shaped material forming section.

FIG. 5 is an explanatory view of a band-shaped dough weighing and cutting section, showing a state where dough is measured.

FIG. 6 is an explanatory diagram of a band-shaped dough weighing and cutting unit, showing a cut of dough.

FIG. 7 is an explanatory view of a band-shaped dough weighing and cutting section, showing a place where the dough is separated.

FIG. 8 is an explanatory diagram of a band-shaped dough weighing and cutting unit, showing a cut portion of a cut dough.

FIG. 9 is an explanatory view of a band-shaped fabric weighing and cutting unit, showing another example of a load cell protection mechanism.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 strip-shaped dough forming unit 11 hopper 12 split cutter device 14 forming feeder 2 dough weighing cutting unit 21 cutting device 23 weighing conveyor 24 load cell 25 arithmetic unit 27 rotary encoder 30 weighing conveyor 31 load cell 34 stopper 4 dough ball splitting unit 42 split rounding device 5 Dough ball weight measuring unit 6 Conveyor 7 Centering device A Divided chunk-shaped dough length B Chunk-shaped dough length on weighing conveyor 30 G Clearance of load cell and frame D1 Food dough D2 Strip-shaped dough D3 Chunk-shaped dough D4 Dough ball

Claims (2)

[Claims] 1. A step of (i) conveying a continuous strip of cloth and discharging it to a weighing conveyor, and (ii) continuously weighing the weight of the strip of cloth by a weighing conveyor, and setting the continuous weighing value as a preset value. Comparing the cutting weight value with the cutting weight value, storing the position of the band-shaped cloth to be cut when the continuous weighing value matches the set cutting weight value in an arithmetic unit, and further transporting the band-shaped cloth; (iii) the weighing; On the conveyor, by the command from the arithmetic unit when the position to be cut of the belt-shaped material to be conveyed reaches the position of the cutting means, cut by the cutting means at a position of the support surface on the weighing conveyor,
A step of obtaining a chunk-shaped dough, (iv) a step of separating the cut chunk-shaped dough from a continuous band-shaped dough, and supplying the same to a post-process, and (v) after the above (iv) step is completed, ii) a step of producing a plurality of chunk-like doughs by successively repeating the steps-(iv) to cut a continuous band-like dough a plurality of times to produce a plurality of chunk-like doughs. Supply method. 2. A transfer conveyor for transferring a continuous belt-shaped fabric, and a weighing conveyor having a load cell downstream of the conveyor are connected and arranged, and a dough cutting device is provided on the weighing conveyor to be transferred to the weighing conveyor. The weight of the dough is continuously weighed, and a calculating device for determining the dough cutting position based on the continuous weighing value is provided, and the displacement when the load of the weighing conveyor exceeds the weighing maximum load due to the impact of the cutting device operation is determined. A weighing material supply device, wherein a stopper for suppressing the weighing material is provided between a weighing portion and a base portion of the weighing conveyor.