JPH08280317A - Rolling mill - Google Patents

Abstract

PURPOSE: To roll a food material to be rolled with softness and stickiness such as a noodle band without peeling by using a roll-driving means which can drive two rollers at different peripheral speeds from each other. CONSTITUTION: When an electric motor starts rotation, the driving force is transmitted through individual gears to an upper roll 2 and a lower roll 3 and the rollers rotates in the reverse directions, respectively, When the ratio of the peripheral speed of the lower roll 3 to the upper one 2 is set to, e.g., 14/15, the difference in the peripheral speed becomes 7% and the peeling reduces. The difference in the peripheral speed of these two rollers is preferably 2-20wt.%. The diameters of these rollers 2, 3 may differ from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling mill, and in particular,
The present invention relates to a rolling device capable of rolling soft and sticky material to be rolled such as noodle strips without causing peeling.

[0002]

2. Description of the Related Art Conventionally, when rolling a raw material dough for noodles such as udon or gyoza, a rolling device for rolling the dough noodle strip, which is the material to be rolled, between two rolls has been used. It was FIG. 1A is a schematic sectional view of a conventional rolling apparatus. The thickness of the noodle strips is exaggerated.
Each of the rolls 2 and 3 is driven by a driving device (not shown), rotates in a direction indicated by an arrow in the figure at the same peripheral speed, and winds the noodle strip 1 by rolling. Such rolling devices are arranged in multiple stages, and rolling is sequentially performed until a desired thickness is obtained. However, the thickness of the noodle strip is, for example, 0.8.
When dumplings or wonton skins with a thickness of about mm to 0.4 mm are rolled, there is a problem in that they may be separated into upper and lower parts to cause personal separation or very thin skin peeling may occur, as shown in the figure. To solve this problem,
Conventionally, measures have been taken such as coating the surface of the roll with a substance that does not stick easily such as fluororesin, or making the ratio of the thickness before and after rolling close to 1 to prevent rapid rolling. It was

[0003]

In the conventional rolling apparatus as described above, for example, if the roll is treated with a fluororesin, the roll becomes expensive, and the fluororesin peels off as the roll is used. Therefore, it is necessary to replace the roll. There was a problem that The ratio of the thickness before and after rolling is 1
If it is close to, it is necessary to install a large number of rolling mills until a desired thickness is obtained, which is also expensive and requires a wider installation place. The present invention solves the problems of the prior art as described above, the installation area does not change, it can be manufactured at low cost, and the soft and sticky material to be rolled such as noodle strips is rolled without causing peeling. It is an object of the present invention to provide a rolling device that can be used.

[0004]

FIG. 1 (b) is a schematic sectional view of a rolling apparatus of the present invention. The upper roll 2 and the lower roll 3 are each driven by a driving device (not shown) to rotate in the directions shown by the arrows in the figure to roll the noodle strip 1. Here, although the radii of the upper and lower rolls may be equal or different, the upper roll 2 is driven so that the peripheral velocity of the roll surface is slightly higher than that of the lower roll 3.
As described above, the present invention is characterized in that in the rolling device for rolling the material to be rolled between the two rolls, the rolling device has driving means for driving the two rolls so that the peripheral speeds of the surfaces of the two rolls are different from each other. And

[0005]

[Operation] The conditions under which the noodle strips can be divided or thinly peeled are as follows:
It changes depending on the salinity of the noodle strips, the temperature, the properties of the raw material flour, and the properties of the roll surface. Further, although the mechanism of occurrence of peeling is not clear, the flour and water are not sufficiently mixed when kneading, a weakly tacky layer containing a large amount of water inside the noodle body, or an extremely low moisture content layer. , Etc., when there are remaining parts with uneven moisture content, or during rolling,
It is conceivable that separation of water occurs as if a sponge containing water was compressed, and also when a portion having an uneven water content is generated, peeling easily occurs. When such a noodle strip passes through the rolling device, as a result of compressing the noodle strip by the two rolls, the surface of the noodle strip and the surface of the roll stick to each other, and when the noodle strip is delivered from between the two rolls, Due to the adhesive force with both rolls, the upper and lower surfaces A and B of the noodle strips are pulled vertically in the opposite directions with the same strength, resulting in thin peeling and division as if they were scraped with a plane. Be done.

According to the present invention, since the rolling apparatus has the driving means for driving the two rolls so that the peripheral speeds of the surfaces of the two rolls are different from each other, the roll 2 having the higher peripheral speed moves the surface A of the noodle strip. As a result of pushing in the horizontal direction (moving direction), the roll and the noodle band surface A act so as to be easily separated. Further, the roll 3 having the slower peripheral speed is separated from the noodle strip by pulling the noodle strip by the device at the latter stage, but at this time, the adhesive force acts only on one surface B,
Noodle strips are less likely to be separated than conventional rolling mills.

[0007]

FIG. 2 is a front view (a) and a side view (b) showing the structure of a rolling apparatus of the present invention. Rolling equipment frame 9
The upper roll 2 and the lower roll 3 having the same radius are attached to the two shafts rotatably supported by the upper roll 2. The upper roll demon gear 4 is fixed to the shaft of the upper roll 2, and the lower roll A lower roll demon gear 5 meshing with an upper roll demon gear 4 and a large gear 6 are fixed to the shaft of the roll 3. Further, the large gear 6 meshes with a drive pinion gear 7 mounted on the shaft of a motor 8 with a reduction gear.

In such a structure, when the motor 8 rotates, power is transmitted to the upper and lower rolls via the gears, and the upper and lower rolls rotate in opposite directions. The noodle strips are supplied to, for example, the rolling device from the upper right side in FIG. 2B, and output from the lower left side to the next stage device or belt conveyor. The shaft of the upper roll 2 is supported by the frame 9 via a thickness adjusting member 13 which is slidable in the horizontal direction with respect to the frame 9, and the two rolls can be operated by operating an adjusting handle (not shown). It is configured so that the interval between them can be adjusted.

Here, conventionally, the upper roll demon gear 4 and the lower roll demon gear 5 are gears having exactly the same radius and the same number of teeth. However, in the present invention, gears having different numbers of teeth are used for the upper roll demon gear 4 and the lower roll demon gear 5. For example, the lower demon gear 5 has 15 teeth and the upper demon gear 4 has 14 teeth. Such a configuration can be easily implemented by those skilled in the art by changing the radius of the gear or using a dislocation gear. Due to the difference in the number of teeth as described above, the ratio of the peripheral speeds of the roll surfaces of the lower roll and the upper roll is 14:15, and the difference in the peripheral speed is about 7%. In the experiment, it was confirmed that the separation (peeling) was reduced at this speed ratio. Regarding the speed ratio, if there is not much difference, the effect decreases, and if there is too much difference, an unreasonable force is applied to the surface of the noodle strip in the horizontal direction, and the surface may be rough or the noodle strip may be damaged, The present invention can be carried out within the range of speed difference of about 2% to 20%.

FIG. 3 is a schematic side view showing the configuration of another embodiment of the present invention. FIG. 3A shows a second embodiment,
By making the radii of the two rolls different so that the upper and lower rolls and the noodle strips are separated from each other, the strength or position of the vertical force applied to the noodle strips by the adhesive force is made different to prevent peeling. is there. The noodle strip 1 is rolled by an upper roll 2 having a small radius and a lower roll 3 having a large radius. Generally, the smaller the radius of the roll, the easier the roll tends to separate. (However, the smaller it is, the lower the rolling performance will be, so it cannot be made too small.) In addition, when the rolls are arranged above and below, the noodle strips separate from the lower roll due to the difference in radius and the weight of the noodle strips. The position D is later than the position C of the upper roll. Therefore, by making the radii of the rolls different, the vertical force of the upper roll is weaker, and the rolls are separated faster than the lower roll, so that peeling is reduced. In addition, the peripheral speed of the upper roll 2 in FIG. 3A may be faster than that of the lower roll 3 by combining the first embodiment and the second embodiment,
Further, the roll surface may be treated with a fluororesin.

FIG. 3B shows a third embodiment in which only the upper roll 2 is driven. The lower roll 11 is rotatably supported, and rotates when the noodle strip 1 is supplied between the lower roll 11 and the upper roll 2. The lower roll 11 is braked simply by rolling resistance of bearings or the like, or is actively braked by the brake device 10. With such a configuration, as in the first embodiment, a horizontal force acts on the contact surface between the upper roll 2 and the noodle strip, and the upper roll 2 is easily separated from the noodle strip. Also in this embodiment, it may be combined with other means such as different roll radii or fluororesin processing.

FIG. 3C shows a fourth embodiment provided with a guide roll 12. In the conventional example, when the noodle strip is delivered from between two rolls, the adhesive force with both rolls pulls the upper and lower surfaces of the noodle strip vertically in the opposite directions with the same strength, resulting in peeling. Occurs. Therefore, the peeling can be reduced by shifting the timing at which the vertical pulling force is applied. For example, by providing the guide roll 12 at a position as shown in FIG. 3 (c), the noodle strip 1 first has the upper roll 2 at the point C.
And the lower roll 3 at point D. Therefore, peeling is reduced because the positions of the vertically applied forces are different. A guide plate should be provided instead of the guide roll,
Alternatively, compressed air may be blown from one side. Also in this embodiment, it may be combined with other means such as different peripheral speeds of the two rolls, different roll radii, or fluororesin processing.

[0013]

As described above, according to the present invention, the rolling apparatus is
Since the two rolls have a driving means for driving the two rolls so that the peripheral speeds of the surfaces of the rolls are different from each other, the roll having the higher peripheral speed pushes the surface of the noodle strip in the horizontal direction. Acts to separate easily. Also, the roll with the slower peripheral speed is separated from the noodle strips by pulling the noodle strips by the latter device, but at this time the adhesive force works only on one surface, so the noodle strips can be used in conventional rolling equipment. Compared with this, it has the effect of making it difficult to separate.

[Brief description of drawings]

FIG. 1 is a schematic side view of a rolling device of the present invention.

FIG. 2 is a front view and a side view showing the structure of the rolling apparatus of the present invention.

FIG. 3 is a schematic side view showing the configuration of another embodiment of the present invention.

[Explanation of symbols]

1 ... Noodle band, 2 ... Upper roll, 3 ... Lower roll, 4 ... Upper roll demon gear, 5 ... Lower roll demon gear, 6 ... Large gear, 7
... drive pinion gears, 8 ... motor with reduction gear, 9 ... rolling mill frame, 10 ... brake device, 11 ... non-driving roll, 12 ... guide roll

Claims (4)

[Claims] 1. A rolling apparatus for rolling a material to be rolled between two rolls by rolling, wherein the rolling apparatus has driving means for driving the two rolls so that the peripheral speeds of the two rolls are different from each other. 2. The rolling apparatus according to claim 1, wherein the material to be rolled is a noodle strip, and a difference in peripheral speed between the two rolls is within a range of 2% to 20%. 3. A rolling device for rolling by rolling a material to be rolled between two rolls, wherein the two rolls have different radii. 4. A rolling apparatus for rolling by rolling a material to be rolled between two rolls, the rolling apparatus having driving means for driving only one of the two rolls.