TWI590937B - Mixer, mixing system, and manufacturing method of mixed product - Google Patents

Description

Mixing machine, kneading system, and manufacturing method of kneading product

The present invention relates to a kneading machine for kneading a kneaded product, a kneading system including the kneading machine, and a production method of kneading products.

It is generally known that a kneading machine in which a pair of rotors are rotated in a chamber and kneaded with a kneaded material in which various additives are mixed with a raw material rubber to produce a kneaded rubber as a rubber product material.

In the kneading machine, the pair of rotors are rotated in different directions, whereby the kneaded material is squeezed into a gap between the pair of rotors to be kneaded.

Here, since the plasticity of the kneaded material varies depending on the material, even if all the kneaded materials are operated under the same conditions, the kneaded material may not be kneaded. Fully mixed situation. Then, for example, the invention described in Patent Document 1 can efficiently knead the material of the kneaded material by correcting the power consumption of the kneader.

[Patent Document 1] Japanese Patent Laid-Open No. 4-201521

However, in the kneading machine described in Patent Document 1, the operation control of the kneading machine is not performed in accordance with the state of the kneaded material in the kneading. Therefore, it is difficult to determine whether or not to proceed depending on the kneaded material. Fully mixed.

Here, depending on the type of the material to be kneaded, during kneading, the kneaded material may not be smoothly squeezed in the gap between the pair of rotors, and the rotor may bite into the kneaded material to cause kneading. A part of the object stays in the upper part of the rotor and bulges upward. In this case, since the kneading of the kneaded material cannot be sufficiently performed, it is necessary to provide a method for accurately determining such a state and reflecting it in the kneading.

The present invention provides a kneading machine, a kneading system, and a method for producing a kneaded product, which can suppress kneading failure caused by the kneading of the kneaded product, and can be carried out according to the material of the kneaded material. Appropriate mixing.

A kneading machine according to a first aspect of the present invention includes: a rotor, a casing, a sensor, and a control unit that are arranged in a pair with a gap; the casing is formed to: a chamber of a pair of rotors, an introduction port for introducing the kneaded material into the chamber, and the aforementioned mixing a discharge port from which the refining material is discharged from the chamber; the sensor is disposed above the pair of rotors for detecting a change in position or pressure of the kneaded material; the control portion is based on the sense The detection result of the detector controls the rotation of the rotor of the aforementioned pair.

In the kneading machine, when the kneaded material is introduced into the chamber and kneaded, when a part of the kneaded material cannot be bitten by the rotor and is lifted upward, the raised portion becomes a kneaded product. Location change. The sensor is used to detect the positional change, and the occurrence of the raised portion can be detected by the sensor. Further, in the swelled portion, since the kneaded material is not kneaded, a pressure fluctuation occurs in the kneaded material in this portion. The sensor is used to detect the pressure change, and the occurrence of the ridge portion can be detected by the sensor.

As described above, according to the detection result of the sensor, the control unit controls the rotation of the rotor, so that the raised portion of the kneaded material can be bitten between the pair of rotors.

Further, in the kneading machine according to the second aspect of the present invention, the sensor of the first aspect described above may detect the position of the kneaded material in the up-down direction.

With the sensor, the occurrence of the raised portion of the kneaded material can be detected. Further, by controlling the rotation of the rotor by the control unit based on the detection result of the sensor, the raised portion of the kneaded material can be bitten between the pair of rotors, and more suitable kneading can be performed.

Further, in the kneading machine according to the third aspect of the present invention, the control unit of the second aspect may change the number of rotations of the pair of rotors in accordance with a positional change period of the kneaded material in the vertical direction. .

In this manner, the number of revolutions of the rotor is increased or decreased depending on the positional variation of the kneaded material in the up-down direction, that is, the fluctuation period of the tip end height position of the raised portion, so that the raised portion of the kneaded material can be bitten into the pair of rotors. Between, and can carry out more appropriate mixing.

Further, in the kneading machine according to the fourth aspect of the present invention, the sensor of any of the first to third aspects may further detect the kneading in the horizontal direction crossing the vertical direction. In the positional change of the object, the control unit controls the rotation of the pair of rotors based on the positional change of the kneaded material in the horizontal direction.

By performing such control, the raised portion of the kneaded material can be bitten into the pair of rotors more efficiently, and more suitable kneading can be performed.

Furthermore, the kneading machine according to a fifth aspect of the present invention may further include: a floating weight for closing the introduction port of the first aspect, wherein the sensor is detected by the kneaded product The pressure fluctuation of the floating weight is detected, and the pressure fluctuation of the kneaded material is detected.

When a bulge of the kneaded material occurs, the kneaded material squeezes the floating weight to increase the pressure acting on the floating weight. Therefore, by detecting the pressure fluctuation acting on the floating weight, the occurrence of the raised portion of the kneaded material can be detected, and the rotation of the rotor can be controlled by the control unit based on the detection result of the sensor, so that the kneaded product can be obtained. The raised portion is bitten between the pair of rotors for more suitable mixing.

Furthermore, the sixth aspect of the present invention may further include: a floating crucible for closing the inlet of the first aspect; And the sensor detects a pressure fluctuation of the kneaded material by detecting a displacement of the floating weight in a downward direction.

When there is a bulge of the kneaded material, the kneaded material will squeeze the floating weight and push the floating weight upward to change its position. Therefore, by detecting the displacement of the floating weight in the up-down direction, it is possible to detect the occurrence of the pressure fluctuation of the kneaded material, that is, the occurrence of the swell of the kneaded material, and control by the detection result of the sensor. The portion controls the rotation of the rotor so that the swelled portion of the kneaded material is bitten between the pair of rotors, and more suitable kneading can be performed.

Further, a kneading system according to a seventh aspect of the present invention includes: the kneading machine as a first kneading machine; and a second kneading machine disposed above or below the first kneading machine; The kneaded product kneaded by one of the first kneader and the second kneader is introduced into the other and further kneaded.

In the kneading system of the first kneading machine, when a part of the kneaded material cannot be bitten by the rotor and is bulged upward, the position of the kneaded material or the pressure fluctuation is borrowed. The occurrence of the raised portion can be detected by the sensor. Therefore, according to the detection result of the sensor, the control unit controls the rotation of the rotor, so that the swelled portion of the kneaded material can be bitten between the pair of rotors.

Further, a method for producing a kneaded product according to an eighth aspect of the present invention includes: an introduction process, wherein the kneaded material is introduced into the chamber from the inlet, and one of the cells is arranged in the chamber so as to be provided with a gap. a pair of rotors; a mixing process in which the aforementioned kneaded material to be introduced into the chamber is used The pair of rotors are kneaded; and the detection process detects the position or pressure of the kneaded material disposed between the pair of rotors and the inlet port while the kneaded material is kneaded. And the adjustment process, the rotation of the pair of rotors is adjusted according to the detection result of the detection process, and the kneading process is continued while the above-described detection process and the adjustment process are performed to produce a kneaded product.

According to the method for producing a kneaded product, in the kneading, when a part of the kneaded material is not bitten by the rotor and is raised upward, the ridge can be detected based on the position or pressure fluctuation of the kneaded product. Part of it happened. Therefore, the rotation of the rotor is adjusted based on the detection result of the sensor, so that the swelled portion of the kneaded material can be bitten between the pair of rotors.

According to the above-described kneading machine, the kneading system, and the method for producing the kneaded product, it is possible to suppress the kneading failure caused by the bulging of the kneaded material, and it is possible to appropriately mix according to the material of the kneaded material. Refining.

1, 1A, 1B‧‧‧ mixing system

2‧‧‧mixer

3‧‧‧Upper Mixer (Second Mixer)

3B‧‧‧Upper Mixer (First Mixer)

4‧‧‧Rotor

5‧‧‧Shell

10‧‧‧ Body Department

11‧‧‧Import

12‧‧‧Export

15‧‧‧Drive support

16‧‧‧Cylinder

17‧‧‧ 盖部

18‧‧‧through holes

19‧‧‧ bottom door support

20‧‧‧Cylinder

21‧‧‧ Board

24‧‧‧ bottom door

25‧‧‧Rotation support

28‧‧‧ Doors

29‧‧‧Protruding

30‧‧‧ curved surface

33‧‧‧ floating weights

34‧‧‧Protruding

35‧‧‧ curved surface

36‧‧‧ Drive Department

37‧‧‧Support rod

38‧‧‧Upper support

39‧‧‧Cylinder

40‧‧‧Fixed components

43‧‧‧lower mixer (first mixer)

44‧‧‧Rotor

45‧‧‧Shell

50‧‧‧ Body Department

51‧‧‧Import

52‧‧‧Export

56‧‧‧Cylinder

59‧‧‧ bottom door support

60‧‧‧Cylinder

61‧‧‧Plate

64‧‧‧ bottom door

65‧‧‧Rotation support

68‧‧‧ Doors

69‧‧‧Protruding

70‧‧‧Curved surface

80, 80B, 80C‧‧‧ sensors

82, 82A, 82B‧‧‧ Control Department

X‧‧‧ Uplifting section

C1, C2‧‧‧ chamber

SP1, SP2‧‧‧ gap

SP3‧‧‧ Space

O1, O2, O3, O4, O5, O6‧‧‧ axes

W‧‧‧Kneaded

W1‧‧‧Kneaded product

S0‧‧‧Pre-mixing process

S1‧‧‧Importing process

S2‧‧‧Kneading process

S3‧‧‧Test process

S4‧‧‧ adjustment process

Fig. 1 is a longitudinal sectional view showing the entire kneading system according to the first embodiment of the present invention.

Fig. 2 is a view showing a state in which the kneaded material is kneaded by the kneading system according to the first embodiment of the present invention, and is an enlarged view of a main part of Fig. 1 .

Figure 3 is a view showing a mixing system according to a first embodiment of the present invention. A flow chart of the procedure of the method of kneading the kneaded material to produce a kneaded product.

FIG. 4 is a flow chart showing the processing procedure of the control unit during the detection process and the adjustment process in the method of manufacturing the kneaded product by the kneading system according to the first embodiment of the present invention.

FIG. 5 is a flow chart showing the processing of the control unit during the detection process and the adjustment process in the kneading method for kneading the kneaded material by the kneading system according to the second embodiment of the present invention.

Fig. 6 is a longitudinal sectional view showing the entire kneading system according to a third embodiment of the present invention.

[First Embodiment]

Hereinafter, the kneading system 1 according to the first embodiment of the present invention will be described with reference to Figs. 1 and 2 .

The kneading system 1 of the present embodiment is a tandem kneading device having two kneading machines 2 connected in the vertical direction.

Here, the lower kneader 2 is referred to as a lower kneader (first kneader) 43, and the upper kneading machine 2 is referred to as an upper kneader (second kneader) 3.

In the kneading system 1, for example, the kneaded material W containing the raw material rubber is kneaded by the upper kneading machine 3, and then introduced into the lower kneader 43 to be further kneaded, and finally the kneaded product is produced. W1.

The upper kneading machine 3 includes a rotor 4 that is arranged in a horizontal direction orthogonal to the vertical direction, a casing 5 that surrounds the rotor 4, a drop door 24 that is provided in the casing 5, and a floating weight. 33. A drive unit 36 that operates the floating weight 33.

The pair of rotors 4 are arranged in the horizontal direction so as to have the gap SP1. Each of the rotors 4 is formed in a columnar shape that is rotated about the axes O1 and O2 by a power source (not shown), and the axes O1 and O2 extend in a direction orthogonal to the horizontal direction and are parallel to each other. The rotors 4 are rotated in opposite directions to each other (refer to the rotation direction R of Fig. 2). In other words, during normal operation, the portions of the pair of rotors 4 located on the outermost peripheral surface of the rotor 4 are rotated toward the gap SP1 so as to approach each other.

The casing 5 has a main body portion 10 that surrounds the pair of rotors 4, a drive portion support portion 15 that extends upward from the main body portion 10, and a bottom door support portion 19 that extends downward from the main body portion 10.

In the main body portion 10, a chamber C1 for arranging a pair of rotors 4, an introduction port 11 for introducing the kneaded material W into the chamber C1, and a discharge port for discharging the kneaded material W from the chamber C1 are formed. 12.

The chamber C1 is a space formed in a substantially elliptical shape so that the rotors 4 are surrounded from the outer peripheral side.

The inlet port 11 is open to the upper portion of the chamber C1 and extends straight upward to penetrate the body portion 10, thereby communicating the chamber C1 with the outside of the body portion 10.

The discharge port 12 is open at a lower portion of the chamber C1 and extends downward to penetrate the body portion 10, thereby accommodating the chamber C1 and the body portion 10 Externally connected. In the present embodiment, the discharge port 12 is formed such that the opening gradually increases in diameter as it goes downward.

The drive portion support portion 15 is for supporting the drive portion 36, which will be described later in detail, and has a tubular portion 16 and a cover portion 17. The tubular portion 16 extends outward from the main body portion 10 so as to surround the introduction port 11 so as to surround the introduction port 11, and includes a material input door (not shown); The shape portion 16 is covered from above, and a through hole 18 penetrating the upper and lower sides is formed at a position above the introduction port 11.

The bottom door support portion 19 has a tubular portion 20 and a pair of plate-like portions 21 . The tubular portion 20 is formed on the outer side of the discharge port 12, that is, in a tubular shape extending downward from the main body portion 10 and extending in the direction of the axes O1 and O2. The pair of plate-like portions 21 are connected to each other. The lower portion of the tubular portion 20 is formed in a plate shape extending in a direction away from each other in the horizontal direction.

The bottom door 24 has a rotation support portion 25 and a door portion 28. The rotation support portion 25 is mounted on one of the horizontal directions of the tubular portion 20 so as to be rotatable relative to the tubular portion 20 about an axis O3 parallel to the axes O1 and O2 of the rotor 4; It is integrally provided in the rotation support part 25, and the discharge port 12 can be opened and closed from the downward direction with the rotation of the rotation support part 25.

Thereby, the door portion 28 has a diameter-expanding shape corresponding to the discharge port 12, and is formed to be reduced in diameter toward the direction of the chamber C1 in a state where the discharge port 12 is closed. Further, a pair of curved faces 30 are formed at positions of the door portion 28 facing the rotor 4. The pair of curved faces 30 are used to form a projection 29 that closes the discharge port 12 at the door portion 28. In the state, the center portion in the horizontal direction protrudes toward the gap SP1 so as to be curved along the inner circumferential surface of the chamber C1 and the outer circumferential surfaces of the pair of rotors 4.

The floating weight 33 is provided so that the introduction port 11 can be opened and closed from above. Further, a pair of curved faces 35 are formed at positions opposing the rotor 4 of the floating weight 33, and the pair of curved faces 35 are used to form the projecting portion 34, which is closed at the floating weight 33. In the state of the port 11, the center portion in the horizontal direction protrudes toward the gap SP1 so as to be curved along the inner peripheral surface of the chamber C1 along the outer peripheral surface of the pair of rotors 4.

The drive unit 36 has a support rod 37 provided on the upper portion of the floating weight 33, an upper support portion 38 for attaching the support rod 37, and a cylinder 39 that is attached to extend downward from the upper support portion 38.

The support rod 37 is integrally formed with the floating weight 33 and extends upward, and is inserted through the through hole 18 formed in the lid portion 17 of the casing 5 to protrude upward from the lid portion 17.

The upper support portion 38 supports the upper end of the support rod 37 by a fixing member 40 such as a bolt. Further, the upper support portion 38 is disposed above the tubular portion 16 and the lid portion 17 with a distance therebetween, and is provided to cover the tubular portion 16 and the lid portion 17.

The pair of cylinders 39 are interposed between the outer surface of each of the tubular portions 16 in the horizontal direction and the upper end positions of the lower surface of the upper support portion 38 in the horizontal direction. By expanding and contracting the cylinders 39, the upper portion 38 can be relatively moved in the vertical direction with respect to the tubular portion 16.

As the upper support portion 38 moves up and down, the support rod 37 is moved up and down, and the floating weight 33 moves up and down in the space SP3 in the tubular portion 16 so as to approach or move away from the introduction port 11, by floating weight 33 The opening 11 is opened and closed.

Next, the lower mixer 43 will be described. In the present embodiment, the lower kneader 43 is shown to have substantially the same size as the upper kneader 3, but the size thereof is not limited.

Similarly to the upper mixer 3, the lower mixer 43 includes a rotor 44 that is arranged in a horizontal direction, a casing 45 in which a chamber C2 that surrounds the rotor 44 is formed, and a bottom that is provided at the bottom of the casing 45. Door 64.

The pair of rotors 44 are arranged in the horizontal direction so as to have the gap SP2, and are rotated about the axes O4 and O5, respectively.

The bottom door 64 has a rotation support portion 65 that rotates about an axis O6 parallel to the axes O4 and O5, and a door portion 68.

A curved surface 70 for forming a pair of the protruding portions 69 is formed in the door portion 68.

On the other hand, the lower kneader 43 is different from the upper kneader 3 in that it does not have a structure corresponding to the floating weight 33 and the driving unit 36, and is instead provided with the sensor 80 provided in the casing 45. And a control unit 82 that controls the rotation of the rotor 44 based on the detection result of the sensor 80.

The casing 45 has a main body portion 50 in which a chamber C2, an inlet port 51, and a discharge port 52 are formed in the same manner as the upper kneader 3, a cylindrical portion 56 extending upward from the main body portion 50, and an upper portion formed thereon. Mixer 3 The same cylindrical portion 60 extending downward and the bottom door supporting portion 59 of the plate portion 61.

The tubular portion 56, which is different from the cylindrical portion 16 of the upper kneader 3, is inclined so that the wall surfaces on both sides in the horizontal direction of the tubular portion 56 are mutually outward in the horizontal direction from the main body portion 50 toward the upper side. Separated from each other. Further, the tubular portion 56 is connected to the lower portion of the plate-like portion 21 of the upper kneader 3 .

In other words, by connecting the bottom door support portion 19 of the upper kneading machine 3 and the cylindrical portion 56 of the lower kneader 43, the discharge port 12 of the upper kneader 3 and the introduction port 51 of the lower kneader 43 are connected. Connected. In this way, the kneaded material W from the upper kneader 3 is introduced into the lower kneader 43.

The sensor 80 is disposed above the pair of rotors 44, and is, for example, an infrared sensor or the like provided to penetrate the wall surfaces of the tubular portion 56 of the casing 45 in the horizontal direction. Further, the sensor 80 is for detecting the position in the vertical direction of the kneaded material W in the chamber C2 of the lower kneading machine 43.

When the sensor 80 detects that the kneaded material W is in a state of being present at a predetermined height position in the vertical direction, for example, in the present embodiment, when the apex of the kneaded material W reaches the cylindrical portion, the control unit 82 is provided. In the case of the state of the height position of 56, the rotation of the rotor 44 is controlled. The control of the rotation of this embodiment is control for changing the number of rotations of the rotor 44. The control unit 82 is attached to, for example, the casing 45.

Next, the kneading method using the kneading system 1 of the present embodiment and the control performed by the control unit 82 will be described with reference to Fig. 3 . Specific examples.

First, the kneaded material W is introduced into the chamber C1 of the upper kneading machine 3 from the inlet port 11 and kneaded, and the kneaded material W after kneading is discharged from the discharge port 12 (pre-mixing process S0).

Next, the kneaded material W from the discharge port 12 is introduced into the chamber C2 from the introduction port 51 of the lower kneader 43 (introduction process S1).

Then, the kneaded material W is kneaded by rotating the pair of rotors 44 (kneading process S2).

Then, in the kneading process S2, when the kneaded material W is kneaded, the sensor 80 detects the vertical direction of the kneaded material W disposed between the pair of rotors 44 and the introduction port 51. Height position change (detection process S3).

Next, according to the detection result of the detection process S3, the rotation of the pair of rotors 44 is adjusted by the control unit 82 (adjustment process S4).

Here, the processing flow of the control unit 82 in the detection process S3 and the adjustment process S4 will be described with reference to FIGS. 2 and 4 .

When a part of the kneaded material W is swelled so as to be disposed in the tubular portion 56 in the vertical direction (see the swelled portion X of FIG. 2), it is mixed with the kneading by the lower kneader 43. The total amount (volume or weight) of the refining material W is set to A% of the amount of the swelled portion X. The amount of the raised portion X is calculated, for example, from the vertex position of the raised portion X to the distance between the outer peripheral surface of the uppermost rotor 44 and the thickness in the horizontal direction and the axes O4 and O5.

Further, it is carried out with respect to the lower mixer 43 In the kneading time of the kneaded material W, the ratio of the time at which the ridge portion X occurs is set to B%.

The control unit 82 first starts measurement of time (step S401). Then, it is determined whether or not a certain time t has elapsed (step S402).

When the determination in step S402 is negative, the measurement is continued, and based on the detection result of the sensor 80, the ratio A% (the cumulative value of the period of time t) of the period of the constant time t is calculated, and the period of the constant time t is calculated. The above ratio B% (step S403).

Then, A% × B% is calculated (step S404).

Further, in parallel with steps S403 and S404, the period P in which the raised portion X of the kneaded material is generated during the constant time t is calculated (step S405).

Next, when the time t has elapsed, that is, the case where the determination is YES in step S402, the measurement time is reset (step S406), and is controlled so that A% × B% is made during the next certain time t The value becomes the smallest, and the number of rotations of the rotor 44 is reduced in the period P (step S407).

In addition, as described above, the control unit 82 repeats the operations of the detection process S3 and the adjustment process S4 while performing the kneading process S2 by repeating the steps S401 to S407, and according to the kneaded material W. The number of rotations of the pair of rotors 44 is changed by the period of the positional change in the vertical direction.

According to the kneading system 1 of the embodiment described above, When the kneaded material W is introduced into the chamber C2 of the lower kneader 43 and kneaded, when a part of the kneaded material W cannot be bitten between the pair of rotors 44 and the swelled portion X occurs, The sensor 80 can detect the occurrence of the raised portion X so as to be changed by the position of the kneaded material W in the up-down direction (height direction).

Further, the control unit 82 increases or decreases the number of revolutions of the rotor 44 based on the detection result of the sensor 80, that is, the value of A% × B% and the generation period P of the raised portion X, thereby controlling The method enables the ridge portion X to be bitten into the rotor 44.

Therefore, the kneading failure due to the bulging of the kneaded material W can be suppressed, and the kneading can be appropriately performed in accordance with the material of the kneaded material W.

In addition, in order to suppress the occurrence of the raised portion X of the kneaded material W by the rotation control of the rotor 44 by the sensor 80 and the control unit 82, for example, the chamber C2 of the lower kneading machine 43 is enlarged. The countermeasures become unnecessary, and the miniaturization of the kneading system 1 can be achieved.

In the above case, although the rotation of the pair of rotors 44 is adjusted by the control unit 82 in the adjustment process S4, the rotation of the rotor 44 may be manually adjusted by the operator based on the detection result of the detection process S3.

Further, although the upper weight mixer 33 is provided with the floating weight 33, it is not necessarily provided. On the other hand, a device corresponding to the floating weight 33 may be provided in the lower mixer 43 as well.

[Second embodiment]

Next, a second embodiment of the present invention will be described with reference to Fig. 5 .

The same components as those in the first embodiment are denoted by the same reference numerals, and their detailed descriptions are omitted.

In the kneading system 1A of the present embodiment, the control unit 82A changes the number of rotations of the pair of rotors 44 in accordance with the positional fluctuation period of the kneaded material W in the vertical direction. This is common to the first embodiment, but The control method is different.

In other words, when the control unit 82A determines in step S402 whether or not the result of the predetermined time t has elapsed, the control unit 82A calculates the number of occurrences of the raised portion X during the constant time t, that is, the calculation sensor 80 detects that it is being kneaded. The number N of changes in the position of the object W in the up and down direction (step S413).

Further, the control unit 82A reduces the number of rotations of the pair of rotors 44 by the same number of times N in the same period of time T for the next predetermined time period (step S417). Then, control is performed to repeat the steps.

According to the kneading system 1A of the present embodiment, as in the control method employed in the first embodiment, the control unit 82A corresponds to the height of the raised portion X of the kneaded material W in accordance with the detection result of the sensor 80. The number of revolutions of the rotor 44 is increased or decreased by the period of change of the position. Therefore, the swelled portion X of the kneaded material W can be bitten between the rotors 44, and the kneading failure caused by the occurrence of the swelled portion X of the kneaded material W can be suppressed, and the material of the kneaded material W can be used. Different and appropriate mixing.

[Third embodiment]

Next, a third embodiment of the present invention will be described with reference to Fig. 6 .

The same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the kneading system 1B of the present embodiment, the sensor 80B is different from the first embodiment and the second embodiment. In other words, the sensor 80B of the present embodiment detects the pressure fluctuation of the kneaded material W of the upper kneader 3B (first kneading machine) by detecting the pressure fluctuation acting on the floating weight 33. .

Specifically, it is a pressure sensor which is provided on at least one of the cylinders 39 of one of the upper kneaders 3B or a pipe thereof, and can detect the pressing force of the cylinder 39 acting on the floating weight 33. .

When the pressing force of the cylinder 39 is equal to or greater than a predetermined value set in advance, the control unit 82B generates a swelled portion X in the kneaded material W, for example, the control unit described in the first embodiment and the second embodiment. The processing flow of 82 and 82A is the same as the processing flow, and the rotation control of the rotor 44 is performed, thereby suppressing the occurrence of the raised portion X.

According to the kneading system 1B of the present embodiment, the sensor 80B detects the fluctuation of the pressing force of the cylinder 39, whereby the pressure fluctuation of the kneaded material W, that is, the occurrence of the raised portion X can be detected.

More specifically, if the ridge portion X occurs in the kneaded material W, the ridge portion X presses the floating weight 33 to increase the pressure acting on the floating weight 33. Moreover, since it can detect the effect on the floating weight 33 Since the pressure fluctuation varies as the pressing force of the cylinder 39, the pressure fluctuation of the kneaded material W, that is, the occurrence of the raised portion X of the kneaded material W can be detected.

Further, according to the detection result of the sensor 80B, the control unit 82B controls the rotation of the pair of rotors 44, so that the raised portion X of the kneaded material W can be bitten between the pair of rotors 44, and the cutting can be performed more appropriately. Mixing.

Here, in the initial stage of the kneading of the kneaded material W, the floating weight 33 is gradually pushed into the introduction port 11, and the control unit 82B can suppress the occurrence of the raised portion X of the kneaded material W. The time required to completely push the floating weight 33 into the introduction port 11 can be reduced, that is, the biting time of the kneaded material W at the stage of the initial stage of the kneading can be reduced.

Here, in the present embodiment, instead of the sensor 80B for detecting the pressure fluctuation acting on the floating weight 33, a position sensor (sensor 80C) may be employed, and the sensor 80C is detected by The stroke amount of the cylinder 39 detects the displacement of the floating weight 33 in the up and down direction.

Specifically, when the swelled portion X occurs in the kneaded material W, the swell portion X presses the floating weight 33, and the floating weight 33 is pushed upward to change the position thereof, so that the stroke amount of the cylinder 39 is changed. Therefore, the sensor 80C can detect the displacement of the floating weight 33 in the vertical direction based on the stroke variation amount of the cylinder 39, and can detect the occurrence of the pressure fluctuation of the kneaded material W, that is, the kneading. The occurrence of the swelled portion X of the object W.

In the above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the respective configurations and combinations thereof and the like in the respective embodiments are merely examples, and the configuration can be implemented without departing from the scope of the present invention. Additions, omissions, substitutions, and other changes. Further, the present invention is not limited by the embodiments, but only by the scope of the patent application.

In the kneading system 1 (1A, 1B) of the above-described embodiment, two kneading machines 2 are provided in the vertical direction. For example, the two kneading machines 2 may be arranged side by side in the horizontal direction.

In this case, the sensors 80 (80B, 80C) and the control unit 82 (82A, 82B) may be provided in each of the kneaders 2. When the sensor 80B (80C) is employed, the floating weight 33 must be set in each of the kneaders 2.

Further, when the raised portion X of the kneaded material W is displaced left and right in the horizontal direction, the left and right positions of the raised portion X can be detected by the sensor 80, and the rotor can be used by the control portion 82 or manually according to the detection result. 44 rotation control. In this case, for example, the pair of rotors 44 can be made to have different numbers of rotations, thereby controlling the position of the raised portion X in the left-right direction, and suppressing the occurrence of the raised portion X. In this case, the ridge portion X can be bitten into the pair of rotors 44 more efficiently.

Further, when the raised portion X occurs, not only the number of rotations of the rotor 44 is reduced, but the number of rotations may be increased as the case may be.

According to the above-described kneading machine, the kneading system, and the method for producing the kneaded product, kneading failure due to the bulging of the kneaded material can be suppressed, and the kneading material can be appropriately kneaded according to the material of the kneaded material. .

1‧‧‧mixing system

2‧‧‧mixer

3‧‧‧Upper Mixer (Second Mixer)

4‧‧‧Rotor

5‧‧‧Shell

10‧‧‧ Body Department

11‧‧‧Import

12‧‧‧Export

15‧‧‧Drive support

16‧‧‧Cylinder

17‧‧‧ 盖部

18‧‧‧through holes

19‧‧‧ bottom door support

20‧‧‧Cylinder

21‧‧‧ Board

24‧‧‧ bottom door

25‧‧‧Rotation support

28‧‧‧ Doors

29‧‧‧Protruding

30‧‧‧ curved surface

33‧‧‧ floating weights

34‧‧‧Protruding

35‧‧‧ curved surface

36‧‧‧ Drive Department

37‧‧‧Support rod

38‧‧‧Upper support

39‧‧‧Cylinder

40‧‧‧Fixed components

43‧‧‧lower mixer (first mixer)

44‧‧‧Rotor

45‧‧‧Shell

50‧‧‧ Body Department

51‧‧‧Import

52‧‧‧Export

56‧‧‧Cylinder

59‧‧‧ bottom door support

60‧‧‧Cylinder

61‧‧‧Plate

64‧‧‧ bottom door

65‧‧‧Rotation support

68‧‧‧ Doors

69‧‧‧Protruding

70‧‧‧Curved surface

80‧‧‧ sensor

82‧‧‧Control Department

C1, C2‧‧‧ chamber

SP1, SP2‧‧‧ gap

SP3‧‧‧ Space

O1, O2, O3, O4, O5, O6‧‧‧ axes

W‧‧‧Kneaded

W1‧‧‧Kneaded product

Claims (6)

A kneading machine comprising: a rotor, a casing, a sensor, and a control unit arranged in a pair with a gap; the casing is formed with a cavity for arranging the pair of rotors a chamber, an introduction port for introducing the kneaded material into the chamber, and a discharge port for discharging the kneaded material from the chamber; the sensor is disposed above the pair of rotors for detecting the foregoing a change in the position of the kneaded material; the control unit controls the rotation of the pair of rotors based on the detection result of the sensor, and the sensor detects a position in the up-down direction of the kneaded material, The control unit changes the number of rotations of the pair of rotors according to a period in which the position of the kneaded material in the vertical direction changes, and the control unit changes the kneaded material up and down for a predetermined period of time. The ratio of the amount of the raised portion generated to the total amount of the kneaded material to the kneaded material is set to A, and the time during which the above-described swelling occurs is relative to the kneading time of the kneaded material between the predetermined times. Proportion set In the case of B, the control for increasing or decreasing the number of rotations of the rotor is performed to minimize the value of A × B between the next predetermined time. A kneading machine comprising: a rotor, a casing, a sensor, and a control unit arranged in a pair with a gap; the casing is formed with a cavity for arranging the pair of rotors a chamber, an introduction port for introducing the kneaded material into the chamber, and a discharge port for discharging the kneaded material from the chamber; The sensor is disposed above the pair of rotors for detecting a change in the position of the kneaded material, and the control unit controls the pair of rotors based on the detection result of the sensor In the rotation, the sensor detects a position in the up-down direction of the kneaded material, and the control unit changes the number of rotations of the pair of rotors according to a period in which the position of the kneaded material in the vertical direction changes. The control unit increases or decreases the number of rotations of the rotor for a predetermined period of time in response to the number of times the kneaded material has been raised up and down between the kneaded materials in a predetermined period of time. control. The kneading machine according to the first or second aspect of the invention, wherein the sensor further detects a positional change of the kneaded material in a horizontal direction intersecting the vertical direction; the control unit is The rotation of the pair of rotors is controlled based on the positional change of the kneaded material in the horizontal direction. A kneading system comprising: a kneading machine according to any one of claims 1 to 3 as a first kneading machine, and disposed above or below the first kneading machine; In the second kneading machine, the kneaded material kneaded by one of the first kneader and the second kneading machine is introduced into the other and further kneaded. A method for producing a kneaded product, comprising: an introduction process, introducing a kneaded material into a chamber from an inlet, and arranging a pair of rotors arranged in a gap by providing a gap; In the kneading process, the kneaded material introduced into the chamber is kneaded by the pair of rotors; and the detection process detects that the kneaded material is kneaded during the kneading process. a change in the position of the kneaded material between the rotor and the introduction port; and an adjustment process for adjusting the rotation of the pair of rotors according to the detection result of the detection process, wherein the adjustment process is based on the kneaded material The period of the positional change in the vertical direction changes the number of rotations of the pair of rotors, and the amount of the bulging portion generated when the kneaded material is up-and-down between the predetermined time is kneaded with respect to the aforementioned When the ratio of the total amount of the objects is A, and the ratio of the time when the swelling portion is generated to the kneading time of the kneaded material is set to B between the predetermined times, the number of rotations of the rotor is increased or decreased. When the numerical value of A×B is the smallest at the next time, the kneading process is continued while the above-described detection process and the above-described adjustment process are performed to produce a kneaded product. A method for producing a kneaded product, comprising: an introduction process, introducing a kneaded material into a chamber from an inlet, and arranging a pair of rotors in a gap between the chambers; and a kneading process; The kneaded material introduced into the chamber is kneaded by the pair of rotors, and the detection process detects that the pair of rotors and the introduction port are disposed while the kneaded material is kneaded. a change in the position of the aforementioned kneaded material between; The adjustment process is performed to adjust the rotation of the pair of rotors based on the detection result of the detection process, and the adjustment process is to rotate the number of the rotors of the pair of rotors according to a period in which the position of the kneaded material in the vertical direction changes The detection is performed while the number of rotations of the kneaded material is increased by the number of rotations of the kneaded material for a certain period of time in the next time when the kneaded material is changed up and down within a certain period of time. In the process and the above-described adjustment process, the kneading process is continued to produce a kneaded product.