JP7434223B2 - Batch-type kneader, blades used in batch-type kneaders, and method for replacing blades in batch-type kneaders - Google Patents

Description

The present invention relates to a batch-type kneader, a blade used in a batch-type kneader, and a method for replacing the blade in a batch-type kneader.

Patent Document 1 discloses a two-shaft kneader in which two rotors each having a kneading blade and a screw are supported by bearings at both ends in the axial direction. When the two-shaft kneading machine is in operation, torque is transmitted from each drive shaft to each rotor body through the spline fitting portion, and the materials to be kneaded are kneaded and discharged while moving in a predetermined direction. The rotor of Patent Document 1 is divided into a rotor main body having kneading blades and a drive shaft, and the rotor main body and the drive shaft are spline-coupled by a spline fitting portion. When repairing or inspecting the rotor body, the rotor body is removed from the drive shaft via the spline fitting portion. Therefore, since the drive shaft is not removed, there is no need to disassemble the bearing box in which the bearing that supports the drive shaft is provided.

Japanese Patent Application Publication No. 4-14411

However, in the field of kneading materials to be kneaded, a batch type kneader has also been proposed, which is discharged after the kneading of materials to be kneaded is completed. Therefore, even in such a batch type kneading machine, a configuration is desired in which the rotor body having the kneading blades can be easily removed.

Therefore, the present invention has been made in view of the above-mentioned problems, and provides a batch-type kneading machine in which the blades can be easily removed, a blade part used in the batch-type kneader, and a blade part in the batch-type kneader. The purpose is to provide an exchange method.

The characteristic configuration of the batch type kneading machine according to the present invention is as follows:
a mixing tank containing kneaded materials;
Equipped with a drive mechanism that rotates the rotor shaft,
The rotor shaft has a drive shaft driven by the drive mechanism and a blade portion that kneads the kneaded material in the mixing tank,
a coupling mechanism that couples the blade portion and the drive shaft so as to be integrally rotatable;
A discharge mechanism that kneads the kneaded material while it is stored in the mixing tank and discharges the kneaded material from the mixing tank when the kneading of the kneaded material in the mixing tank is completed,
The blade portion is configured to be separable from the drive shaft.

According to this characteristic configuration, the blade part and the drive shaft are coupled to be rotatable together by the coupling mechanism, and the kneaded material in the mixing tank can be kneaded by the blade part in response to the drive from the drive shaft. The blade portion is configured to be separable from the drive shaft. Therefore, for example, when replacing, repairing, or inspecting the blade portion, only the blade portion can be easily attached and detached while the drive shaft is assembled to the batch-type kneader. Therefore, work efficiency is improved and work time can be shortened compared to the case where the drive shaft and the blade portion are attached and detached as one unit.

Further characteristic configurations of the batch type kneader according to the present invention include:
When the kneading of the kneaded materials in the mixing tank is completed, the discharge mechanism is configured to invert the mixing tank with the rotation axis of any one of the plurality of rotor shafts as a rotation axis for attitude change, or rotate the mixing tank. The mixing tank is configured to be discharged to the outside by opening a lower door.

Further characteristic configurations of the batch type kneader according to the present invention include:
The coupling mechanism is a mechanism for coupling the blade portion to the drive shaft along the axial direction of the rotor shaft.

The coupling mechanism allows the blade part and the drive shaft to rotate together, and also allows the drive shaft to be separated from the blade part. Examples of the coupling mechanism include spline coupling and key coupling.

A further feature of the batch-type kneader according to the present invention is that the coupling mechanism includes a spline coupling portion.

According to this characteristic configuration, since the blade part and the drive shaft are spline-coupled, the rotational torque of the drive shaft can be transmitted to the blade part, and the blade part can be slid in the axial direction with respect to the drive shaft. Can be easily removed from the drive shaft.

Further characteristic configurations of the batch type kneader according to the present invention include:
The coupling mechanism further includes a fitting part that is adjacent to the spline coupling part along the axial direction of the rotor shaft, and in which the annular surface of the drive shaft and the annular surface of the blade part fit together. .

According to this characteristic configuration, since the blade portion and the drive shaft are fitted into each other at the fitting portion, the axes of the drive shaft and the blade portion can be aligned.

Further characteristic configurations of the batch type kneader according to the present invention include:
A first receiving portion is provided on the drive shaft on a radially outward side with respect to the coupling mechanism,
The first receiving portion is configured to receive the movement of the blade toward the drive mechanism in the axial direction of the rotor shaft.

When the kneading material is kneaded by the blade, a thrust force directed from the blade toward the drive mechanism is applied to the first receiving portion provided on the drive shaft. In this case, the first receiving part of the drive shaft is deformed so as to be pushed outward in the radial direction intersecting the axis of the rotor shaft by being pressed by the thrust force directed from the blade part toward the drive mechanism. There are cases where According to this characteristic configuration, the first receiving portion of the drive shaft is disposed on the radially outer side with respect to the coupling mechanism. Therefore, even if the first receiving part of the drive shaft is deformed as described above, the deformation will not affect the coupling mechanism when the blade part coupled by the coupling mechanism is separated from the drive shaft. , the blade part can be easily separated from the drive shaft.

Further characteristic configurations of the batch type kneader according to the present invention include:
A second receiving portion is provided to support an end portion of the blade portion on a side opposite to the drive mechanism side,
The second receiving portion is located at a point that receives movement of the blade portion toward a side opposite to the drive mechanism side in the axial direction of the rotor shaft.

According to this characteristic configuration, movement of the blade portion in the axial direction of the rotor shaft to the side opposite to the drive mechanism side is received by the second receiving portion. On the other hand, movement of the blade portion toward the drive mechanism in the axial direction of the rotor shaft is received by the first receiving portion. Therefore, since bidirectional movement of the blade portion in the axial direction of the rotor shaft is prevented, the kneaded materials in the mixing tank can be kneaded well.

Further characteristic configurations of the batch type kneader according to the present invention include:
The blade portion includes at least a first blade and a second blade, and the first blade and the second blade are twisted in different directions with respect to the axial direction of the rotor shaft.

According to this characteristic configuration, in the batch type kneading machine, by making the twist directions of the first blade and the second blade of the blade part different from each other, it is possible to efficiently knead the kneaded material in the mixing tank.
Furthermore, since the torsional directions of the first blade and the second blade of the blade are different from each other, the first thrust force from the blade toward the drive mechanism in the axial direction of the rotor shaft and the first thrust force applied to the blade in the axial direction of the rotor shaft are A second thrust force is generated on the side opposite to the drive mechanism side. Here, as described above, if the first receiving part is provided on the drive shaft and the second receiving part is provided on the end of the blade part, the first thrust force is applied to the first receiving part on the drive shaft. The second thrust force is received by the first receiving portion, and the second thrust force is received by the second receiving portion at the end of the blade portion. Therefore, the bidirectional first and second thrust forces can be firmly received. Therefore, even if the hardness of the kneaded material is large and a large thrust force is generated in both directions, the blades having different torsion directions as described above can efficiently knead the kneaded material in a batch type kneader. It can be done well and stably.

Further characteristic configurations of the batch type kneader according to the present invention include:
In the mixing tank, a first side plate connected to the drive mechanism side in the axial direction of the rotor shaft;
a second side plate connected to a side opposite to the drive mechanism in the mixing tank;
Furthermore,
The rotor shaft passes through the first side plate, the mixing tank, and the second side plate,
The second side plate is separable from the mixing tank, or the second side plate and the mixing tank are separable from the first side plate.

According to this characteristic configuration, the rotor shaft passes through the first side plate, the mixing tank, and the second side plate. When the second side plate is separated from the mixing tank, a portion of the rotor shaft is exposed closer to the second side plate than the mixing tank. Alternatively, when the second side plate and the mixing tank are separated from the first side plate, a portion of the rotor shaft is exposed closer to the mixing tank than the first side plate. By exposing a portion of the rotor shaft and pulling out the blades to the side opposite to the drive mechanism, only the blades can be separated from the drive shaft while the drive shaft remains assembled in the batch-type kneader.

Further characteristic configurations of the batch type kneader according to the present invention include:
a first bearing portion that supports an end of the rotor shaft on the drive mechanism side;
a second bearing portion that supports an end of the rotor shaft opposite to the drive mechanism;
Furthermore,
The second side plate unit having the second bearing portion and the second side plate can be separated as a unit from the mixing tank.

Since the second side plate unit in which the second bearing part and the second side plate are integrated can be separated from the mixing tank, for example, the second bearing part is separated from the rotor shaft, and then the second side plate is separated from the mixing tank. The separation work is more efficient than separating each member individually. As a result, the efficiency of work such as replacing the blades of a batch-type kneader can be improved and the work time can be shortened.

A characteristic configuration of the blade portion according to the present invention is that it is used in the above-mentioned batch type kneader.

A feature of the method for replacing a blade according to the present invention is that the blade is separated while the drive shaft remains in place.

FIG. 1 is a side view showing the overall configuration of a batch-type kneader. FIG. 2 is a front view of a batch-type kneader. FIG. 3 is a sectional view taken along line III-III in FIG. 2; 3 is a sectional view taken along IV-IV in FIG. 2. FIG. 5 is a partially enlarged view of FIG. 4. FIG. 3 is a sectional view taken along VI-VI in FIG. 2. FIG. It is a side view of the blade|wing of a blade|wing part main body. FIG. 8 is a view taken along arrows VIII-VIII in FIG. 7; 8 is a view along arrow IX-IX in FIG. 7. FIG. FIG. 3 is a cross-sectional view showing the flow of separation of the blade portion from the drive shaft. FIG. 3 is a cross-sectional view showing the flow of separation of the blade portion from the drive shaft. FIG. 3 is an enlarged view showing how the blade portion is coupled to the outer periphery of the drive shaft. FIG. 7 is a cross-sectional view showing another example of the separation position of the blade portion and the drive shaft.

[First embodiment]
A batch-type kneader (hereinafter abbreviated as a kneader) according to an embodiment of the present invention will be described with reference to the drawings. First, the schematic configuration of the kneader 10 will be explained using FIGS. 1 to 3. In addition, below, description will be made according to the directions shown in FIGS. 1, 2, etc., that is, top, bottom, front, rear, right, and left. However, this embodiment is not limited to this orientation.

(1) Schematic configuration of the kneading machine As shown in FIGS. 1 and 2, the kneading machine 10 includes a mixing tank 13 that accommodates the kneading material inputted from the opening at the top, and a kneading tank 13 that kneads the kneading material in the mixing tank 13. Kneading is completed with the rotor shaft 40 having the blade portion 61, the drive mechanism V that rotationally drives the rotor shaft 40, and the pressurizing mechanism X having the pressurizing lid 19 that pressurizes the kneaded material in the mixing tank 13 from above. It includes a discharge mechanism Y that discharges the kneaded material from the mixing tank 13, and a control section (not shown) that controls the operation.
Further, the kneading machine 10 according to the present embodiment is configured as a two-shaft kneading machine having two rotor shafts 40.

In the above-mentioned kneading machine 10, as shown in FIGS. 1 and 3, the kneading material 18 is put into the mixing tank 13, the upper opening of the mixing tank 13 is closed with the pressurizing lid 19, and the rotor shaft having the blade part 61 is rotated. Rotate 40. Thereby, the blade 15 rotates in the space 16 between the mixing tank 13 and the blade part 61 by rotating the blade part 61 having the blade 15 . By rotating the blades 61 of the two rotor shafts 40 in different directions, the kneaded material 18 is kneaded by passing between the inner wall of the mixing tank 13 and the outer periphery of the blades 61. The mixture is kneaded by passing between the blades 15 protruding from the mixing tank 13 and the inner wall of the mixing tank 13, and by passing between two blades 61 rotating in different directions.
The kneaded material 18 is not particularly limited, but includes, for example, raw rubbers used for automobile tires, such as natural rubber, isopyrene rubber, and butadiene rubber, and compounding agents such as carbon black, silica, and zinc oxide.

(2) The configuration of each part will be explained using FIGS. 1 to 11.
(2-1) Drive Mechanism As shown in FIGS. 2 and 4, the drive mechanism V includes a motor 109 that serves as a power source for rotationally driving one of the drive-side rotor shafts 40a of the two rotor shafts 40; A reducer 107 that is connected to the drive-side rotor shaft 40a and increases the output torque by reducing the rotational speed of the motor 109 using gears, etc.; a belt 108 that transmits power between the motor 109 and the reducer 107; The gear mechanism 100 transmits the rotation of the driving rotor shaft 40a, which is rotationally driven by the power from the machine 107, to the other driven rotor shaft 40b. Note that the gear mechanism 100 mainly includes a driving gear 101 and a driven gear 103.
In addition, in FIG. 2, the motor 109, belt 108, reducer 107, etc. are shown small in the drawing, but they become large depending on the driving force generated, etc., and the size compared to the rotor shaft 40, etc. is the actual size. It may be different.

The motor 109 generates rotational driving force for the drive side rotor shaft 40a and transmits it to the speed reducer 107 via the belt 108. The reducer 107 reduces the rotational driving force from the motor 107 at a predetermined reduction ratio to generate a predetermined rotational driving force, and outputs the generated rotational driving force from the output shaft 106 . The output shaft 106 of the reduction gear 107 is connected to the drive side rotor shaft 40a via the coupling 105 and the drive gear 101.
Specifically, in the coupling 105, a key groove (not shown) recessed toward the outer diameter side is formed in the inner peripheral surface of the insertion hole 105a through which the output shaft 106 can be inserted, and the outer peripheral surface of the output shaft 106 is A keyway 106a recessed toward the inner diameter side is formed, and a key 53 is disposed across both keyways. As a result, the coupling 105 and the output shaft 106 are connected to be able to rotate together in the same rotation direction, and the coupling 105 is prevented from moving toward the reducer 107 side (to the right in FIG. 4) with respect to the output shaft 106. has been done.

A large diameter portion 105b whose diameter increases toward the outer diameter side is formed at the left end of the coupling 105, and a gear (not shown) is formed on the inner peripheral surface of the large diameter portion 105b. . The gear of the large diameter portion 105b of the coupling 105 is configured to mesh with a gear (not shown) formed on the outer peripheral surface of the drive gear 101. As a result, the large diameter portion 1 of the coupling 105
The gear 05b and the gear of the drive gear 101 mesh with each other, so that the coupling 105 and the drive gear 101 are connected to be rotatable together in the same rotation direction. Note that even if the drive gear 101 moves toward the reducer 107 side (the right side in FIG. 4) with respect to the coupling 105, it comes into contact with the left end surface extending from the insertion hole 105a toward the outer diameter side, so that it moves toward the reducer 107 side. can prevent the movement of

The drive gear 101 has an insertion hole 101a on the inner peripheral surface through which the drive side rotor shaft 40a can be inserted.
A key groove (not shown) recessed toward the outer diameter side is formed, and a key groove 51a recessed toward the inner diameter side is formed on the outer circumferential surface of the drive side rotor shaft 40a, and the key 51 is recessed across both key grooves. is located.
As a result, the drive gear 101 and the drive rotor shaft 40a are connected to be able to rotate together in the same rotation direction, and the drive rotor shaft 40a is connected to the drive gear 101 on the reducer 107 side (see FIG.
relative movement to the right side) is prevented. Note that the reducer 1 of the drive side rotor shaft 40a
A male threaded portion (not shown) is formed on the outer circumferential surface of the end on the 07 side (right side in FIG. 4), and a nut 102a is screwed into the male threaded portion in a non-rotating state. This results in
The drive side rotor shaft 40a is prevented from moving relative to the drive gear 101 to the side opposite to the reducer 107 side (left side in FIG. 4).

A gear (not shown) that meshes with a gear formed on the outer peripheral surface of the drive gear 101 (a gear that does not mesh with the gear of the coupling 105) is formed on the outer peripheral surface of the driven gear 103. As a result, the gear of the driven gear 103 and the gear of the driving gear 101 mesh with each other, and the driven gear 1
03 and the drive gear 101 are configured to be rotatable in different rotational directions.

The driven gear 103 has an insertion hole 103a on the inner peripheral surface through which the driven rotor shaft 40b can be inserted.
A key groove (not shown) recessed toward the outer diameter side is formed, and a key groove 52a recessed toward the inner diameter side is formed on the outer circumferential surface of the driven rotor shaft 40b, and the key 52 extends across both key grooves. is located.
As a result, the driven gear 103 and the driven rotor shaft 40b are connected to be able to rotate together in the same rotation direction, and the driven rotor shaft 40b is connected to the reducer 107 side (FIG. 4) with respect to the driven gear 103.
relative movement to the right side) is prevented. Note that the speed reducer 1 of the driven side rotor shaft 40b
A male threaded portion (not shown) is formed on the outer peripheral surface of the end on the 07 side (right side in FIG. 4), and a nut 102b is screwed into the male threaded portion in a non-rotating state. This results in
The driven rotor shaft 40b is prevented from moving relative to the driven gear 103 to the side opposite to the reducer 107 (to the left in FIG. 4).

(2-2) Pressurizing mechanism As shown in FIG. 1, the pressurizing mechanism It includes a drive cylinder 23 that drives the pressurizing lid 19 up and down via the support part 21.
When the kneaded material 18 is introduced into the mixing tank 13 from the opening at the top, the pressurizing mechanism Lower the pressure cover 19. When the two rotor shafts 40 are driven by the support of the control section and kneading of the kneaded materials is completed, the pressurizing mechanism X raises the pressurizing lid 19 according to an instruction from the control section.

(2-3) Discharging mechanism The discharging mechanism Y includes a turning device (not shown) that rotates the mixing tank 13 and the like to a predetermined discharging position. The kneaded material 18 is kneaded while being stored in the mixing tank 13. Afterwards, when the kneading of the kneaded material is completed and the pressurizing mechanism X raises the pressurizing lid 19, the discharging mechanism Y As shown in FIG. 1, the mixing tank 1 is rotated around the drive side rotor shaft 40a
3 and the driven rotor shaft 40b. Then, the posture of the mixing tank 13 is changed so that the opening faces downward as shown by the two-dot chain line in FIG. As a result, the kneaded material 18 that has been kneaded is discharged from the mixing tank 13 through the downward facing opening.
Thus, in this embodiment, when changing the posture of the mixing tank 13 and discharging the kneaded material 18, the driven rotor shaft 40b is rotated about the drive rotor shaft 40a as the rotation axis. At this time, the driven rotor shaft 40b rotates in accordance with the change in the attitude of the mixing tank 13 while the driven gear 103 meshes with the drive gear 101. Therefore, when changing the postures of the mixing tank 13 and the driven rotor shaft 40b, the reducer 107, the belt 108, and the motor 109 remain fixed at predetermined positions. Therefore, compared to a case where a relatively large device such as the reducer 107 rotates together with the mixing tank 13, etc., a large driving force is not required, and the danger due to the rotation of the large device can be reduced. .
Note that the completion of kneading the kneading materials means, for example, when the integrated value of the driving power in the drive mechanism V reaches a predetermined value, when it is determined by visual inspection that the kneading materials have been kneaded, and when a predetermined period of time has elapsed from the start of kneading. This includes times when

(2-4) Rotor shaft The driving rotor shaft 40a and the driven rotor shaft 40b each have a driving shaft 41 and a blade portion 61, but these rotor shafts 40 are connected to the driving gear 101 or Driven gear 1
Since the other configurations are the same except for how it is connected to the drive-side rotor shaft 40a, the following description will focus on the drive-side rotor shaft 40a.
In the drive-side rotor shaft 40a of this embodiment, the blade portions 61 are arranged adjacent to each other on an extension of the drive shaft 41 along the axis A. That is, in the direction along the axis A (left and right direction), the reducer 107
The drive shaft 41 is located on the side (right side), and the blade portion 61 is located on the opposite side (left side) from the reducer 107. Further, the blade portion 61 is configured to be separable from the drive shaft 41 along the axis A. At this time, the blade portion 61 connects the drive shaft 41 to the drive gear 101 and the driven gear 1.
03, the coupling 105, the output shaft 106, the speed reducer 107, etc. can be separated from the drive shaft 41 while remaining connected to the drive mechanism V (as they remain).

The drive shaft 41 includes a drive shaft body 43 on the drive gear 101 side that extends along the axis A, and a cylindrical receiving end 45 that extends along the axis A from the outer peripheral end of the drive shaft body 43. . As shown in FIG. 4, the right end portion of the drive shaft body 43 is connected to the drive gear 101. Receiving end 4
5 extends in a cylindrical shape along the axis A on the side opposite to the drive gear 101 (left side), and has a receiving recess 47 inside which is recessed toward the drive gear 101 side (right side) along the axis A. ing.

The blade part 61 includes a blade main body 17 extending along the axis A, and a drive shaft 4 from the blade main body 17.
A first small diameter portion 65 extending along the axis A on the first side (right side) and a drive shaft 41 from the blade main body 17.
It has a second small diameter portion 66 extending along the axis A on the opposite side (left side). First small diameter section 6
5 and the second small diameter portion 66 are formed to have a smaller diameter than the blade main body 17. Further, the second small diameter portion 66 includes a second intermediate small diameter portion 66b extending leftward from the blade main body 17, and a second intermediate small diameter portion 66b extending from the blade main body 17 to the left side.
It has a second tip small diameter portion 66a extending leftward from 6b. The second intermediate small diameter portion 66b and the second tip small diameter portion 66a are configured to taper in stages from the blade main body 17 toward the side opposite to the drive shaft 41 (left side).

The blade main body 17 has annular outer circumferential ends 111 (111α, 111β) formed at both ends to extend radially outward from the first small diameter portion 65 and the second small diameter portion 66. The outer peripheral end 111α is formed at the right end of the blade main body 17, and the outer peripheral end 111β is formed at the left end of the blade main body 17. An annular groove 111a recessed from the surface of the outer peripheral end 111α (a surface intersecting the axis A) is formed between the outer peripheral end 111α on the drive shaft 41 side and a position adjacent to the first small diameter portion 65. has been done. That is, an annular groove 111a recessed to the left along the axis A direction is formed on the radially inward side of the outer peripheral end portion 111α.
Further, the blade main body 17 is formed with blades 15, which will be described in detail later.

Although details will be described later, the first small diameter portion 65 of the blade portion 61 as described above is inserted into the receiving recess 47 of the receiving end portion 45 of the drive shaft 41, so that the drive shaft 41 and the blade portion 61 are integrally coupled. A drive-side rotor shaft 40a is constructed. At this time, the inner circumferential surface of the receiving end portion 45 and the outer circumferential surface of the first small diameter portion 65 are coupled by the coupling mechanism 120.

Here, the coupling mechanism 120 coupling the receiving recess 47 and the first small diameter part 65 includes a fitting part 120a and a spline coupling part 120b, as shown in FIGS. 4, 5, 10, and the like. The fitting part 120a is adjacent to the spline joint part 120b, and as shown in FIG. 120a1 are in contact with each other. The inner circumferential annular surface 120a2 of the receiving end 45 and the first
By bringing the small diameter portion 65 into contact with the outer circumferential annular surface 120a1, the axial center of the blade portion 61 and the axial center of the drive shaft 41 can be made to substantially coincide with the axial center A.

Further, as shown in FIG. 6, the spline joint portion 120b connects the inner peripheral surface of the receiving end portion 45
This is a mechanism for spline-coupling the outer peripheral surface of the small diameter portion 65. That is, as shown in FIG. 11, the inner circumferential surface of the receiving end 45 has an inner circumferential annular surface 120a2 adjacent to the inner circumferential annular surface 120a2.
A plurality of splines are formed in the circumferential direction to protrude inward in the radial direction and extend in the direction of the axis A. On the other hand, on the outer circumferential surface of the first small diameter portion 65, a plurality of splines are formed in the circumferential direction adjacent to the outer circumferential annular surface 120a1, recessed radially inward from the outer circumferential annular surface 120a1 and extending in the axis A direction.

By fitting and coupling the receiving end portion 45 and the first small diameter portion 65, the rotational torque of the drive shaft 41 can be efficiently transmitted to the blade portion 61. When removing the blade part 61 from the drive shaft 41, the blade part 61 is driven along the axis A direction relative to the drive shaft 41 via the spline connection between the receiving end part 45 and the first small diameter part 65. By sliding in the direction away from the shaft 41, the blade portion 61 can be easily removed from the drive shaft 41.
Note that, in order to prevent wear of the coupling mechanism 120, it is preferable to apply a lubricant such as oil or fat to the inner circumferential surface of the receiving end portion 45 and the outer circumferential surface of the first small diameter portion 65.

Further, the first small diameter portion 65 of the blade portion 61 is inserted into the receiving recess 47 of the receiving end portion 45 of the drive shaft 41, so that the groove 111a of the blade main body 17 and the receiving portion 113 come into contact. Since the groove 111a and the receiving part 113 are formed on the radially outer side of the coupling mechanism 120, the groove 111a of the blade main body 17 and the receiving part 113 are formed on the radially outer side of the coupling mechanism 120. Abuts at .

Here, with the first small diameter part 65 inserted into the receiving recess 47, the second small diameter part 66 of the blade part 61 tightens the double nut 91 of the second bearing part (second receiving part) 90, which will be described later. According to
By being pressed in the right direction toward which the drive gear 101 is disposed, the groove 111a and the receiving portion 113 come into contact without being misaligned, and the blade portion 61 is coupled to the drive shaft 41. As a result, the blade part 61 and the drive shaft 41 are coupled by the coupling mechanism 120, and are stably fixed along the axis A, so that the blade part 61 is integrated with the rotation of the drive shaft 41. rotates.

Note that when the first small diameter part 65 is inserted into the receiving recess 47 and the receiving part 113 abuts on the groove 111a, the right end of the first small diameter part 65 intersects with the axis A direction of the receiving recess 47. A space S is formed between the bottom surface and the bottom surface. Therefore, even if a force is generated from the blade portion 61 toward the drive shaft 41 (from left to right) and the first small diameter portion 65 is pushed toward the drive shaft 41, the right end of the first small diameter portion 65 will not fit into the receiving recess 47. Never touch the bottom. Since the right end portion of the first small diameter portion 65 is not deformed, the blade portion 61 can be easily separated by being pulled out along the axis A direction away from the drive shaft 41 via the coupling mechanism 120.

Next, the configuration of the blades 15 of the blade main body 17 will be explained using FIGS. 7 to 9.
As shown in FIG. 7, two blades 15a and 15b having different twist directions are provided on the outer circumferential surface 17a of the blade main body 17. As shown in FIG. 8, which is a view taken along arrows VIII-VIII in FIG. 7, the blade 15a extends from the outer peripheral end 111β toward the outer peripheral end 111α to the center of the blade main body 17. The blade 15a is surrounded by a top surface 15a1 that most protrudes from the outer peripheral surface 17a of the blade main body 17, and side surfaces 15a2 and 15a3 that extend from the top surface 15a1 toward the outer peripheral surface 17a. The top surface 15a1 is aligned with the axis A
It extends in an oblique direction forming an angle θa with respect to the outer circumferential surface 17a, and is slightly twisted with respect to the outer circumferential surface 17a as it goes from the outer circumferential end portion 111β toward the tip. Further, the side surface 15a2 is the top surface 15a.
1 toward the outer circumferential surface 17a, and is constituted by an inclined surface that widens from the outer circumferential end 111β toward the tip. The side surface 15a3 is an inclined surface opposite to the side surface 15a2, and is formed of an inclined surface that widens from the top surface 15a1 toward the outer circumferential surface 17a and becomes smaller as it goes from the outer circumferential end 111β toward the tip.

On the other hand, FIG. 9, which is a view taken along arrows IX-IX in FIG. 7, is a view of the blade main body 17 in FIG. 7 viewed from the vertically opposite direction to that in FIG. has a shape that is horizontally and vertically inverted. The blade 15b is surrounded by a top surface 15b1, and side surfaces 15b2 and 15b3 that extend from the top surface 15b1 toward the outer circumferential surface 17a. The top surface 15b1 extends obliquely at an angle θb with respect to the axis A, and is slightly twisted with respect to the outer circumferential surface 17a as it goes from the outer circumferential end portion 111α toward the tip. For example, the angle θb
is in the relationship θb≈−θa. The side surface 15b2 is formed of an inclined surface that widens from the top surface 15b1 toward the outer circumferential surface 17a and becomes wider from the outer circumferential end 111α toward the tip. The side surface 15b3 is an inclined surface opposite to the side surface 15b2, and the top surface 1
It is constituted by an inclined surface that widens from 5b1 toward the outer circumferential surface 17a and becomes smaller from the outer circumferential end 111α toward the tip.

In this way, the blades 15a and 15b extend from the outer circumferential end 111β and the outer circumferential end 111α in a horizontally and vertically inverted manner, respectively, so that the torsion directions with respect to the axis A are different. Since the twisting directions of the blades 15a and 15b are different, the direction of kneading of the kneaded material is different depending on whether the kneaded material is kneaded by the blades 15a or 15b in the mixing tank 13. By rotating the blade portion 61, both the blades 15a and 15b knead the material to be kneaded from various directions, thereby achieving efficient kneading.

(2-5) First side plate unit, mixing tank, and second side plate unit The drive side rotor shaft 40a having the drive shaft 41 and the blade portion 61 described above has the right end of the drive shaft 41 supported by the first side plate unit 150. The left end portion of the blade portion 61 is pivotally supported by the second side plate unit 160. Since the first side plate unit 150 and the second side plate unit 160 support both ends of the drive side rotor shaft 40a, the blade part 61 blade main bodies 17 are accommodated.
The configurations of the first side plate unit 150, the mixing tank 13, and the second side plate unit 160 will be explained below.

As shown in FIG. 1, the mixing tank 13 has a generally U shape with an open top for introducing kneaded materials.
It has a letter-shaped mixing tank body 31. In addition, as shown in FIGS. 4, 5, etc., the mixing tank body 31
is open in the left and right directions, and is also open at the top for introducing kneaded materials. The blade main bodies 17 of the blades 61 of the two rotor shafts 40 extending along the axis A pass through the left-right opening of the mixing tank body 31 . The mixing tank body 31 includes a body 31a extending along the axis A corresponding to the blade body 17, and flanges 31b and 31c bent outward from the left and right ends of the body 31a, respectively. have.

Further, the first side plate unit 150 that pivotally supports the right end portion of the drive shaft main body 43 (drive shaft 41) is
It includes a first bearing part 80 and a first side plate 35.
The first side plate 35 supports the first bearing portion 80 while covering the right side of the mixing tank body 31 of the mixing tank 13 . The first side plate 35 has a side plate main body 35a extending along the axis A, and a locking portion 35b at the right end of the side plate main body 35a. Further, the first side plate 35 has a body side wall 35d that covers the right side of the mixing tank body 31 while passing the two rotor shafts 40 therethrough. The body side wall 35d is bent from the left end of the side plate main body 35a toward the blade portion 61, and has two openings 35e through which the two rotor shafts 40 can pass. Furthermore, the first side plate 35 includes the side plate main body 3
It has a flange 35c bent from the left end of 5a toward the outside away from the two blades 61.

The first bearing portion 80 rotatably supports the drive shaft 41 between the right end portion of the drive shaft body 43 connected to the drive gear 101 and the receiving end portion 45 as follows. . The first bearing part 80 includes a plurality of bearings 83 that rotatably supports the drive shaft main body 43, a cylindrical first support part 87 that supports the bearing 83 at a predetermined position, a cylindrical second support part 89, and a cylindrical second support part 89. It has a cylindrical collar 88. Note that in this embodiment, three bearings 83 are arranged with respect to the drive shaft body 43.

An annular locking step 86 is formed on the outer circumferential surface of the drive shaft main body 43. An annular locking step 86 is formed on the outer circumferential surface of the drive shaft body 43, and the left end 83a on the inner radial side of the bearing 83 is formed on the outer circumferential surface of the drive shaft body 43. It receives a force directed toward the opposite side (left side) of the gear 101 and is locked to the locking stepped portion 86 . In addition, a bearing receiving part 89b consisting of a corner is formed in the second support part 89 at approximately the same position as the locking step part 86 in the direction of the axis A, and the outer diameter of the bearing 83 is formed in this bearing receiving part 89b. The left end 83b is locked on the side. A right end portion 83d on the outer diameter side of the bearing 83 is supported by a first support portion 87 disposed inside a second support portion 89. Further, the right end 83c on the inner diameter side of the bearing 83 is supported by a collar 88 that is fitted onto the drive shaft body 43 and extends to a location adjacent to the drive gear 101. The second support portion 89 is engaged with the locking portion 35b of the first side plate 35 at the side plate receiving portion 89a formed of a step, and the side plate receiving portion 89a and the locking portion 35b are connected to bolts, nuts ( (not shown). With this configuration, the bearing 83 is attached around the drive shaft main body 43 and supported at a predetermined location by being assembled with the first support portion 87, the second support portion 89, the first side plate 35, and the like.

Further, the first support portion 87 supports the bearing 83 and also supports the oil seal 73 provided on the right side of the bearing 83 with the space 72 interposed therebetween. Similarly, the second support part 89 supports the bearing 83 and the space 7 on the left side of the bearing 83.
It supports an oil seal 70 provided through 1. The oil seals 70 and 73 can prevent fluids such as lubricating oil, water, chemical solutions, and gases, and foreign matter such as dust from entering.

Further, the second side plate unit 160 that pivotally supports the left end portion of the second tip small diameter portion 66a of the blade portion 61 includes a second bearing portion 90 and a second side plate 37.
The second side plate 37 supports the second bearing portion 90 while covering the left side of the mixing tank body 31 of the mixing tank 13 . The second side plate 37 has a side plate main body 37a extending along the axis A, and a locking portion 37b at the left end of the side plate main body 37a. Further, the second side plate 37 has a body side wall 37d that covers the left side of the mixing tank body 31 while passing the two rotor shafts 40 therethrough. The body side wall 37d is bent from the right end of the side plate body 35a toward the blade portion 61, and has two openings 37e through which the two rotor shafts 40 can pass. Further, the second side plate 37 includes the side plate main body 3
It has a flange 37c bent from the right end of 7a toward the outside away from the two blades 61.

The second bearing portion 90 rotatably supports the blade portion 61 at the tip of the second tip small diameter portion 66a in the following manner. The second bearing part 90 includes a double nut 91, a bearing 93 that rotatably supports the blade part 61, a cylindrical first support part 97 that supports the bearing 93 at a predetermined position, and a cylindrical second support part 99. and a cylindrical collar 95. Note that in this embodiment, 1
bearings 93 are arranged relative to the drive shaft body 43.

A locking step portion 96 consisting of a step toward the inner side in the radial direction is formed on the outer peripheral surface of the second tip small diameter portion 66a, and the right end portion 93a on the inner diameter side of the bearing 93 is driven by the bearing 93. It receives a force directed toward the gear 101 side (right side) and is locked to the locking stepped portion 96. Further, the second support portion 99 has a corner portion 99 on the drive shaft 41 side (right side) with respect to the locking stepped portion 96 in the direction of the axis A.
b is formed. This corner 99b corresponds to the right end 93b on the outer diameter side of the bearing 93, and a predetermined gap 58a is provided between the corner 99b and the end 93b of the bearing 93.

An end portion 93d of the bearing 93 is supported by a first support portion 97 disposed inside a second support portion 99. Here, a male threaded portion 67 is formed in the second tip small diameter portion 66 a at the leftmost end portion further leftward than the left end portion supported by the second bearing portion 90 . A double nut 91 is fitted into this male threaded portion 67. The double nut 91 is tightened to the right to press the collar 95, and the pressed collar 95 supports the left end 93c on the inner diameter side of the bearing 93. The second support portion 99 is engaged with the locking portion 37b of the second side plate 37 at the side plate receiving portion 99a formed of a step, and the side plate receiving portion 99a and the locking portion 37b are engaged with the locking portion 37b.
and are connected by bolts and nuts (not shown). With this configuration, the bearing 93 is attached around the second tip small diameter portion 66a, and is supported at a predetermined location by assembly with the first support portion 97, the second support portion 99, the second side plate 37, etc. .

With the bearing 93, the first support part 97, the second support part 99, the second side plate 37, etc. assembled in this way, the corner part 99b of the second support part 99 and the end part 93b of the bearing 93 are connected as described above. A predetermined gap 58a is provided between the two. That is, a corner 99b is formed in the second support part 99 on the right side of the locking step part 96, and a gap 58a is provided. Therefore, the leftward force from the drive shaft 41 side toward the blade portion 61 side is transmitted to the bearing 93 earlier than to the second support portion 99. Then, the force transmitted to the bearing 93 can be released to the first support part 97 and the second support part 99 that support the bearing 93, and then to the second side plate 37. Therefore, the force in the left direction from the drive shaft 41 side toward the blade portion 61 side can be sufficiently received.

Further, the first support portion 97 supports the bearing 93 and also supports the oil seal 55 provided on the left side of the bearing 93 with a space 57 interposed therebetween. Similarly, the second support part 99 supports the bearing 93 and the space 5 on the right side of the bearing 93.
It supports an oil seal 59 provided through 8.

In the first side plate unit 150, mixing tank 13, and second side plate unit 160 configured in this way, the drive side rotor shaft 40a is arranged and assembled as follows.
The blade main body 17 is made to correspond to the mixing tank body 31 of the mixing tank 13, and the blade 61 is passed through the opening 35e of the first side plate 35 and the opening 37e of the second side plate 37. The flange 31c of the first side plate 35 and the flange 35c of the first side plate 35 are fixed with bolts and nuts 133. Similarly, the flange 31b of the mixing tank body 31 and the flange 37c of the second side plate 37
are fixed with bolts and nuts 131.

When the blade main body 17 corresponds to the mixing tank 13, the first small diameter part 65 of the blade part 61 corresponds to the first side plate 35, the second intermediate small diameter part 66b corresponds to the second side plate 37, and the second tip Small diameter part 66
a extends beyond the second side plate 37 to the left along the axis A.

On the other hand, in the drive shaft 41, the receiving end 45 corresponds to the first side plate 35, and the drive shaft main body 43 corresponds to the first side plate 35.
It is arranged so as to correspond to the drive gear 101 side rather than the side plate 35 .
Then, by inserting the first small diameter portion 65 of the blade portion 61 into the receiving recess 47 of the receiving end portion 45 of the drive shaft 41, the first small diameter portion 65 of the blade portion 61 and the receiving end portion of the drive shaft 41 are inserted. 45 are both located corresponding to the first side plate 35.

Further, a part of the radially outward side of the outer circumferential end 111α of the blade main body 17 and the body side wall 35d of the first side plate 35 overlap each other while being separated from each other with a gap in the direction of the axis A. It is arranged like this. Similarly, a portion of the outer peripheral end portion 111β on the radially outer side and the body side wall 37d of the second side plate 37 are arranged so as to overlap each other while being separated from each other with a gap in the direction of the axis A. ing.

Further, the opening 35e of the first side plate 35 has a predetermined gap between the receiving end 45 of the drive shaft 41, the body side wall 37d, and the outer peripheral end 111α with the drive side rotor shaft 40a passing therethrough. A mechanical seal 49 is provided in this gap. Similarly, the opening 37e of the second side plate 37 has the second intermediate small diameter portion 66 of the blade portion 61 penetrated by the two rotor shafts 40.
There is a predetermined gap between the body side wall 37d and the outer peripheral end 111β, and a mechanical seal 49 is provided.

As described above, both ends of the drive side rotor shaft 40a including the blade portion 61 and the drive shaft 41 are rotatably supported by the first side plate unit 150 and the second side plate unit 160, and the drive side rotor shaft 40a is connected to the reducer 107. side (right side), and the drive side rotor shaft 40a as a whole is stably fixed to the drive gear 101.

(3) Reception of thrust force in the kneader Next, reception of thrust force in the kneader 10 configured as described above will be explained.
As described above, the blades 15a and 15b provided on the blade main body 17 are twisted in different directions with respect to the axis A. This allows for efficient kneading of the kneaded materials.
Here, since the torsional directions of the blades 15a and 15b are different, when the kneaded material is kneaded in the mixing tank 13, the blade part 61 receives force from the kneaded material, and from the blade part 61 to the drive shaft 41 side (from the left The first thrust force is directed toward the right side), and the first thrust force is directed toward the opposite side of the drive shaft 41 from the blade portion 61 (
A second thrust force directed from the right to the left is generated. A first thrust force directed from the blade portion 61 toward the drive shaft 41 (from left to right) is applied to the receiving portion (first receiving portion) 113 of the drive shaft 41 . In this case, the receiving portion 113 of the drive shaft 41 is moved by the blade main body 17 by the first thrust force.
By being pressed by the groove 111a of the rotor shaft 40, the rotor shaft 40 may be deformed so as to be pushed outward in the radial direction intersecting the axis A of the rotor shaft 40. As described above, the receiving portion 113 of the drive shaft 41 is provided on the outer side in the radial direction with respect to the coupling mechanism 120. Therefore, as described above, the drive shaft 41
Even if the receiving portion 113 is deformed, when the blade portion 61 connected by the connecting mechanism 120 is separated from the drive shaft 41, the deformation does not affect the connecting mechanism 120 and the blade portion 6
1 can be easily separated from the drive shaft 41.

Further, the second thrust force directed from the drive shaft 41 toward the blade portion 61 (from right to left) is received by the second bearing portion (second receiving portion) 90 . In other words, the second thrust force is
It is transmitted to the bearing 93 that is locked to the first locking step 96, passes through the first support part 97 and second support part 99 that support the bearing 93, and is transmitted to the second side plate 37 and is received.

From the above, the bidirectional first and second thrust forces along the axis A direction are applied to the receiving portion (first receiving portion) 113 and the second bearing portion (second receiving portion) of the drive shaft 41, respectively. It is firmly accepted by 90. Therefore, the batch type kneader 10 is equipped with the blade portion 61 having the blades 15a and 15b with different torsion directions as described above. The kneading material can be kneaded efficiently and stably.

(4) Method of separating the blade portion from the drive shaft Next, we will explain how to separate the blade portion 61 while leaving the drive shaft 41 in Figs. 10 and 1.
1 will be used for explanation.
As shown in FIG. 10, first, while the blade portion 61 is still integrally connected to the drive shaft 41, the left side members, such as the double nut 91, the second bearing portion 90, and the second side plate 37 are removed from the second side plate 37. Remove. Although the order is not particularly limited as long as these members can be removed, for example, first, the double nut 91 fitted into the male threaded portion 67 of the second small diameter portion 66a of the blade portion 61 is rotated and removed. After that, loosen the bolts and nuts 131 and attach the second side plate 37 to the mixing tank body 31.
Separate from. Thereby, the second side plate unit 1 including the second side plate 37 and the second bearing part 90
60 is separated from the mixing tank body 31.
At this time, since the second bearing part 90 is removed together with the second side plate 37, the rotor shaft 40 including the blade part 61 and the drive shaft 41 is cantilevered by the first side plate unit 150 including the first bearing part 80. ing. Therefore, in order to sufficiently support the weight of the rotor shaft 40, the rotor shaft 40 including the blade portion 61 and the drive shaft 41 is supported by a plurality of bearings 83.

Next, as shown in FIG. 11, the blade portion 61 is pulled out away from the drive shaft 41 along the axis A direction. At this time, the first small diameter portion 65 of the blade portion 61 is connected to the receiving end 45 of the drive shaft 41.
The first small diameter portion 65 and the receiving end portion 45 are connected by a spline. Therefore, the first small diameter portion 65 is slid against the receiving end portion 45 to separate the blade portion 61 from the drive shaft 41 . At this time, the drive shaft 41 of the drive side rotor shaft 40a is
First bearing part 80, drive gear 101, coupling 105, output shaft 106, and reducer 107
etc. remains connected. The drive shaft 41 of the driven rotor shaft 40b remains connected to the first bearing portion 80, the driven gear 103, and the like.

As described above, the blade portion 61 is configured to be separable from the drive shaft 41. Therefore, for example, when replacing the blade portion 61, only the blade portion 61 can be easily attached and detached while the drive shaft 41 is assembled to the batch-type kneader 10. Therefore, compared to the case where the drive shaft 41 and the blade part 61 are attached and detached as one piece, the work efficiency is improved and the work time can be shortened.
Further, the blade portion 61 may be coupled to the drive shaft 41 by the reverse procedure to that described above. For example, the second
With the side plate unit 160 separated from the mixing tank body 31, the replacement blade 61 is inserted into the drive shaft 41 along the axis A direction. Thereafter, the second side plate unit 160 is attached to the mixing tank body 31 with bolts and nuts 131, and the double nuts 91 are fitted into the male screw portion 67 of the second small diameter portion 66a of the blade portion 61 and tightened. Thereby, the blade portion 61 can be coupled to the drive shaft 41 so as to be integrally rotatable.
Note that replacement also includes repairs, inspections, etc.

Further, the drive mechanism V that rotationally drives the drive shaft 41 includes a drive gear 101, a driven gear 103,
It includes a coupling 105, an output shaft 106, a reducer 107, a motor 109, etc., and has many parts. According to the above configuration, there is no need to attach or detach the drive shaft 41 to the drive mechanism V when replacing the blade portion 61, etc., thereby eliminating the disassembly work of the drive mechanism V and the assembly work of the drive mechanism V that requires precision. be able to.

Further, when removing the blade portion 61 from the drive shaft 41, the second side plate unit 160, which is a member on the left side of the mixing tank body 31, is separated as one piece, so the work is easy and the work time can be shortened.

[Other embodiments]
(1) In the above embodiment, the rotor shaft 40 is configured to be integrally rotatably coupled with the blade portion 61 adjacent to the extension of the axis A of the drive shaft 41, and the blade portion 61 is connected to the drive shaft 41. It is possible to separate it from the drive shaft 41 while leaving it intact. However, the configuration is not limited to the above, as long as the blade part 61 is connected to the drive shaft 41 so that it can be separated and removably and can rotate integrally with the drive shaft, and as shown in FIG. 41 may be used. The configuration of FIG. 12 will be described below, but the explanation of configurations similar to those of the above embodiment will be omitted or simplified.

In FIG. 12, the drive shaft 41 extends along the direction of the axis A, and does not have the receiving end 45 and the receiving recess 47 like the drive shaft 41 of the above embodiment. Although not shown, the right end portion is pivotally supported by the first side plate unit 150 having the first bearing portion 80 shown in the above embodiment, and is connected to the output shaft 106 of the reducer 107 via the drive gear 101. connected. Further, the left end portion of the drive shaft 41 is pivotally supported by a second side plate unit (second receiving portion) 160 having the second bearing portion 90 shown in the above embodiment. Therefore, the drive shaft 41 in FIG. 12 is pivotally supported at both ends and extends along the axis A from one end to the other end.

The blade main body 17 is a cylindrical member having an inner circumferential diameter that roughly matches the outer circumferential diameter of the drive shaft 41, and a plurality of blades 15 having different twist directions are formed on the outer circumferential surface. The blade body 17 surrounds the outer periphery of the drive shaft 41 and is attached to a portion corresponding to the mixing tank 13 shown in FIG. 2 and the like. In a state where the blade main body 17 is attached to the drive shaft 41, the axis of the blade main body 17 and the axis of the drive shaft 41 generally coincide with each other at the axis A. The blade main body 17 has outer circumferential ends 111α and 111β at both ends in the axis A direction.

The drive shaft 41 and the blade body 17 are coupled by a coupling mechanism 120 so that the blade body 17 can slide along the axis A with respect to the drive shaft 41. The coupling mechanism 120 is
A spline joint 120b, a left fitting part 120aL of the spline joint 120b,
It consists of a fitting part 120aR on the right side of the spline joint part 120b. The fitting portions 120aL and 120aR are configured by the smooth inner annular surface of the blade body 17 and the smooth outer circumferential annular surface of the drive shaft 41, and due to this contact, the blade body 17 The axial center of the drive shaft 41 and the axial center of the drive shaft 41 can be made to approximately coincide with the axial center A.
The spline coupling portion 120b is a mechanism that connects the outer circumferential surface of the drive shaft 41 and the inner circumferential surface of the blade portion 61 with a spline, thereby causing the drive shaft 41 and the blade portion 61 to rotate together. The details of the spline coupling portion 120b are the same as those in the above embodiment.

The blade main body 17 coupled to the drive shaft 41 in this manner is fixed to the drive shaft 41 by the second side plate unit 160 and the receiving portion 113 (first receiving portion) of the drive shaft 41 as follows. . The second side plate unit 160 includes a double nut 91, a second bearing portion 90 including two bearings 93α and 93β, and a collar 151 (second receiving portion). The collar 151 is provided between the double nut 91 and the bearing 93α, between the two bearings 93α and 93β, and between the bearing 93β and the left end surface of the blade main body 17. Further, the receiving portion 113 of the drive shaft 41 is formed from a step recessed inward in the radial direction. This receiving portion 113 is provided on the outer side in the radial direction with respect to the coupling mechanism 120.

When the double nut 91 is fitted into the male threaded portion 67 formed on the left side of the second bearing portion 90 of the drive shaft 41 and tightened to the right, the bearings 93α, 93β and the collar 151 are pushed to the right. As a result, the left end surface of the blade body 17 is pushed to the right by the collar 151, and a part of the right side end surface of the blade body 17 is pressed against the receiving part 113 of the drive shaft 41, and as a result, the blade body 17 is fixed at a predetermined position on the drive shaft 41.

In the above configuration, when replacing the blade portion 61, as in the embodiment described above, as shown in FIG.
0, the double nut 91 and the second side plate unit 160 including the second bearing portion 90 and the second side plate 37 are removed. Next, the blade portion 61 is pulled out in the direction away from the drive shaft 41 along the axis A direction. Thereby, only the blade portion 61 can be easily attached and detached while the drive shaft 41 is assembled to the batch-type kneader 10.

The first thrust force directed from the second bearing part 90 that pivotally supports the drive shaft 41 toward the drive gear 101 (from left to right) is applied to the receiving part (first receiving part) 113 of the drive shaft 41, and Part 11
3 may be deformed so as to be pushed outward in the radial direction. However, the receiving part 113
is provided on the radially outward side with respect to the coupling mechanism 120, so when the blade portion 61 coupled by the coupling mechanism 120 is separated from the drive shaft 41, the deformation thereof will affect the coupling mechanism 120. First, the blade portion 61 can be easily separated from the drive shaft 41.
Further, the second thrust force directed from the drive gear 101 toward the second bearing portion 90 (from the right to the left) is received by the collar 151 . That is, the second thrust force is transmitted to the collar 151, and then transmitted to the second bearing portion 90 and the double nut 91, so that it is received.

(2) In the above embodiment, in the portion corresponding to the first side plate 35, the first small diameter portion 65 of the blade portion 61 and the receiving end portion 45 of the drive shaft 41 are coupled by the coupling mechanism 120 so as to be integrally rotatable. There is. The blade portion 61 can be separated from the drive shaft 41 via the coupling mechanism 120 at the portion corresponding to the first side plate 35 .
However, it is sufficient that the blade portion 61 can be separated from the drive shaft 41 while the drive shaft 41 is attached to the drive mechanism V, and the separation position of the blade portion 61 and the drive shaft 41 is not limited to the portion corresponding to the first side plate 35. For example, as shown in FIG. 13, the separation position of the blade portion 61 and the drive shaft 41 may be outside the mixing tank 13, the first side plate 35, and the second side plate 37.
In FIG. 13, as an example, the first small diameter portion 65 of the blade portion 61 and the receiving end portion 45 of the drive shaft 41 are connected to each other by a coupling mechanism near the left side of the drive gear 101 and near the right side of the first side plate unit 150. 120 shows a configuration coupled by 120. The blade portion 61 can be separated from the drive shaft 41 at the portion where the coupling mechanism 120 is provided. The only difference is the separation position between the blade portion 61 and the drive shaft 41, and the other configurations are the same as in the above embodiment.

(3) In the above embodiment, the discharge mechanism Y changes the posture of the mixing tank 13 so that the upper opening faces downward, and discharges the kneaded material 18 from the mixing tank 13. However, in the kneader 10, the method of discharging the kneaded material 18 is not limited to this. For example, the discharge mechanism Y may be configured to include a discharge lid (door) for discharge and an opening/closing mechanism at the bottom of the mixing tank 13. Then, after kneading the kneaded material while it is stored in the mixing tank 13, when the kneading of the kneaded material 18 is completed, the opening/closing mechanism opens the discharge lid at the bottom of the mixing tank 13 in response to an instruction from the control section. . Thereby, the kneaded material 18 that has been kneaded can also be discharged from the mixing tank 13.

(4) In the above embodiment, as shown in FIG. 10, the second side plate unit 160 including the second side plate 37 and the second bearing part 90 is separated from the mixing tank body 31. Thereafter, the blade portion 61 is pulled out away from the drive shaft 41 along the axis A direction. However, the method of separating the first side plate unit 150, mixing tank body 31, and second side plate unit 160 is not limited to this. For example, it can be separated as follows. First, the double nut 91 fitted into the male threaded portion 67 of the blade portion 61 is rotated and removed. After that, loosen the bolts and nuts 133,
The second side plate unit 160 and the mixing tank body 31 are integrated and separated from the first side plate unit 150. Then, the blade portion 61 is pulled out along the axis A direction so as to move away from the drive shaft 41. When coupling the blade portion 61 to the drive shaft 41, the above procedure is reversed.

(5) In the above embodiment, one of the two rotor shafts 40 is connected to the drive gear 1.
01, and the remaining rotor shaft 40 is connected to the driven gear 103.
However, a drive gear 101 is provided corresponding to each of the two rotor shafts 40, and an output shaft 106 is connected to each drive gear 101 so that each rotor shaft 40 is driven and rotated independently. You can leave it there.

(6) In the above embodiment, the first small diameter portion 65 of the blade portion 61 and the receiving end portion 45 of the drive shaft 41
are coupled together by a spline coupling portion 120b of the coupling mechanism 120 so as to be integrally rotatable. However, these connections are not limited to connections using the spline connection portion 120b, and may be, for example, key connections.

(7) In the above embodiment, the twist directions of the blades 15a and 15b are different. but,
The blades 15a and 15b are arranged not only in the torsional direction but also in the top surface 15 on the surface of the blade main body 17.
The length and protrusion height of a1 may be different.

(8) In the above embodiment, when the first small diameter portion 65 is inserted into the receiving recess 47, the drive shaft 41
The receiving portion 113 contacts the groove 111a of the blade main body 17. However, the blade body 17
The groove 111a may not be formed in the drive shaft 41, and the receiving portion 113 of the drive shaft 41 may be in contact with the opposing outer peripheral end surface of the blade body 17.

(9) In the above embodiment, a closed type batch type kneading machine in which the mixing tank 13 is sealed with the pressurizing lid 19 has been described as an example, but an open type batch type kneading machine in which the mixing tank 13 is not sealed with the pressurizing lid 19 is explained as an example. The present invention is also applicable to kneading machines.

(10) In the above embodiment, the blade main body 17 is provided with two blades 15;
Three or more blades 15 may be provided.

Note that the configuration disclosed in the above embodiment (including other embodiments, the same applies hereinafter) can be applied in combination with the configuration disclosed in other embodiments, unless a contradiction occurs.
Further, the embodiments disclosed in this specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be modified as appropriate without departing from the purpose of the present invention.

10: Kneading machine 13: Mixing tank 15: Vane 15a: Vane 15b: Vane 16: Space 17: Vane body 17a: Outer surface 18: Kneading material 19: Pressurizing lid 21: Lid support 23: Drive cylinder 31: Mixing Tank body 31a: Body body 31b: Flange 31c: Flange 35: First side plate 35a: Side plate body 35b: Locking portion 35c: Flange 35d: Body side wall 35e: Opening 37: Second side plate 37a: Side plate body 37b: Locking portion 37c: Flange 37d: Body side wall 37e: Opening 40: Rotor shaft 40a: Drive rotor shaft 40b: Driven rotor shaft 41: Drive shaft 43: Drive shaft body 45: Receiving end 47: Receiving recess 49: Mechanical seal 51: Key 51a: Keyway 52: Key 52a: Keyway 53: Key 55: Oil seal 57: Space 58: Space 58a: Gap 59: Oil seal 61: Vane portion 65: First small diameter portion 66: Second Small diameter portion 66a: Second tip small diameter portion 66b: Second intermediate small diameter portion 67: Male thread portion 70: Oil seal 71: Space 72: Space 73: Oil seal 80: First bearing portion 83: Bearing 83a: End portion 83b: End portion 83c: End portion 83d: End portion 86: Locking step portion 87: First support portion 88: Collar 89: Second support portion 89a: Side plate receiving portion 89b: Bearing receiving portion 90: Second bearing portion 91: Double Nut 93 : Bearing 93a : End part 93b : End part 93c : End part 93d : End part 95 : Collar 96 : Locking step part 97 : First support part 99 : Second support part 99a : Side plate receiving part 99b : Corner part 100: Gear mechanism 101: Drive gear 101a: Through hole 102a: Nut 102b: Nut 103: Driven gear 103a: Through hole 105: Coupling 105a: Through hole 105b: Large diameter portion 106: Output shaft 106a: Keyway 107: Reduction Machine 108: Belt 109: Motor 111: Outer end 111a: Groove 111α: Outer end 111β: Outer end 113: Receptacle 120: Coupling mechanism 120a: Fitting portion 120a1: Outer annular surface 120a2: Inner annular surface 120b: Spline joint 131: Nut 133: Nut 150: First side plate unit 160: Second side plate unit A: Axis center S: Space V: Drive mechanism X: Pressure mechanism Y: Discharge mechanism

Claims (11)

a mixing tank containing kneaded materials;
Equipped with a drive mechanism that rotates the rotor shaft,
The rotor shaft is composed of two or more shafts, and has a drive shaft driven by the drive mechanism and a blade portion for kneading the kneaded material in the mixing tank,
a coupling mechanism that couples the blade portion and the drive shaft so as to be integrally rotatable;
A discharge mechanism that kneads the kneaded material while it is stored in the mixing tank and discharges the kneaded material from the mixing tank when the kneading of the kneaded material in the mixing tank is completed,
The blade portion includes a blade main body extending along the axis of the rotor shaft, and a blade provided on an outer peripheral surface of the blade main body,
The blade part is a batch type kneading machine in which the blade part is separated from the drive shaft while the drive shaft and the mixing tank remain assembled to the drive mechanism. When the kneading of the kneaded material in the mixing tank is completed, the discharge mechanism is configured to reverse the kneaded material by using the rotation axis of one of the plurality of rotor shafts as a rotation axis for attitude change or to rotate the kneaded material into the mixing tank. The batch type kneader according to claim 1, wherein the mixing tank is configured to be discharged to the outside by opening a lower door. The batch-type kneading machine according to claim 1 or 2, wherein the coupling mechanism is a mechanism for coupling the blade portion to the drive shaft along the axial direction of the rotor shaft. The batch- type kneading machine according to any one of claims 1 to 3, wherein the coupling mechanism has a spline coupling portion. The coupling mechanism further includes a fitting part that is adjacent to the spline coupling part along the axial direction of the rotor shaft and in which an annular surface of the drive shaft and an annular surface of the blade part fit together. 4. The batch-type kneader according to 4. A first receiving portion is provided on the drive shaft on a radially outer side with respect to the coupling mechanism, and the first receiving portion is configured to prevent the driving of the blade portion in the axial direction of the rotor shaft. The batch type kneading machine according to any one of claims 1 to 5, which receives movement toward the mechanism side. A second receiving portion is provided to support an end portion of the blade portion on a side opposite to the drive mechanism side,
The batch- type kneading machine according to claim 6, wherein the second receiving portion receives movement of the blade portion in the axial direction of the rotor shaft in a direction opposite to the drive mechanism side. Any one of claims 1 to 7, wherein the blade portion includes at least a first blade and a second blade, and the first blade and the second blade are twisted in different directions with respect to the axial direction of the rotor shaft. Batch-type kneading machine described in Section. In the mixing tank, a first side plate connected to the drive mechanism side in the axial direction of the rotor shaft;
a second side plate connected to a side opposite to the drive mechanism in the mixing tank;
Furthermore,
The rotor shaft passes through the first side plate, the mixing tank, and the second side plate,
Batch-type kneading according to any one of claims 1 to 8, wherein the second side plate is separable from the mixing tank, or the second side plate and the mixing tank are separable from the first side plate. Machine. a first bearing portion that supports an end of the rotor shaft on the drive mechanism side;
a second bearing portion that supports an end of the rotor shaft opposite to the drive mechanism;
Furthermore,
The batch- type kneader according to claim 9, wherein the second side plate unit having the second bearing portion and the second side plate is separable as a unit from the mixing tank. A method for replacing a blade in a batch-type kneader according to any one of claims 1 to 10, comprising:
A method for replacing a blade portion, in which the blade portion is separated while the drive shaft and the mixing tank remain assembled to the drive mechanism.