JP2010284600A - Kneading apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a kneading apparatus in which the material to be kneaded is kneaded simultaneously in a plurality of kneading vessels having the same weight, the kneading efficiency of which is improved by adjusting the weight balance by a simple operation when the number of kneading vessels becomes smaller than that of vessel holders of a rotating body, and in which a weight balance adjusting structure is simplified by utilizing such an inclined state of the vessel holder that a kneading effect of the material to be kneaded in the kneading vessel is enhanced. <P>SOLUTION: The vessel holder 15 which holds the kneading vessel detachably, is arranged at two or more places in the circumferential direction of the rotating body 13 to be rotary driven around the revolution axial center so that the vessel holder is rotated freely around the inclined axial center having a crossing with the revolution axial center. A rotationally driving means B for rotary driving the vessel holder 15 is provided and a weight balance adjusting tool A, which includes a balance weight 25 to be moved to the direction of the rotation axial center Y2 of the vessel holder 15 and a balance adjusting/operating means 26 for moving/operating the balance weight 25 to the direction of the rotation axial center Y2, are attached to the vessel holder 15 to be detached freely therefrom. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a kneading apparatus for kneading a fluid material to be kneaded such as ointment, solder paste, fats and oils by revolution and rotation.

  In a conventional kneading apparatus, a pair of arm portions that are inclined at an angle of 45 degrees with respect to the revolution shaft at two locations that are equally spaced in the circumferential direction on the revolution shaft that is linked to the revolution drive motor that is the revolution drive means. And a container holder for detachably holding the kneading container at the tip of each arm part of the rotating body is inclined at an angle of 45 degrees with respect to the revolution axis of the revolution axis. A rotation driving motor for driving and rotating each container holder is provided on the arm portion so as to be rotatable about the axis.

  A container holder and a rotation drive motor provided in at least one of the arm portions of the rotating body are configured to be detachable, and one arm of the rotation body from which the container holder and the rotation drive motor are removed. The balance weight having the same weight as the total weight of the other container holder, the rotation drive motor, and the kneading container filled with the material to be kneaded can be detachably attached to the mounting hole of the part (Patent Document 1). reference).

Japanese Patent Laid-Open No. 10-43567 JP-A-6-343913 JP 2008-114136 A

  In the conventional kneading apparatus, when there are many kneading containers of the same weight to be kneaded, the kneading containers are respectively attached to the container holders attached to the both arm portions of the rotating body, and the centrifugal motion by revolving motion is performed. The materials to be kneaded in the two kneading containers can be efficiently and uniformly mixed and kneaded while maintaining a good weight balance due to the rotation of the inner wall of the container due to force and rotation, the influence of gravity, etc. it can.

  In addition, when there is only one kneading container having the same weight, the container holder and the rotation driving motor are removed from one arm portion of the rotating body, and the other container holder is attached to the mounting hole of this one arm portion. By attaching a balance weight of the same weight as the total weight of the rotation drive motor and the kneading container filled with the material to be kneaded, the other container holder is rotated and revolved while maintaining a good weight balance. It is possible to uniformly knead the material to be kneaded in the single kneading vessel mounted.

  However, if there is only one kneading container with the same weight, as described above, the container holder and the rotation drive motor must be removed from one arm of the rotating body and replaced with the balance weight. It takes a lot of trouble to replace.

  In addition, the balance weight must be the same weight as the total weight of the container holder, the rotation drive motor, and the kneading container filled with the material to be kneaded, and the material to be kneaded stored in the kneading container. Since it is necessary to prepare a plurality of types according to the weight, there is an inconvenience that the management is complicated and the cost is increased.

  In addition, it is conceivable that a plurality of balance weight mounting holes are formed in one arm portion of the rotating body along the rotational radius direction using the techniques disclosed in Patent Documents 2 and 3 and the like. In this case, the type of balance weight can be reduced, but the problem that much time is required for the replacement has not been solved.

  The present invention has been made in view of the above circumstances, and the main problem is that the number of kneading containers having the same weight can be reduced while simultaneously kneading a plurality of kneading containers having the same weight. Even when the number of container holders of the rotating body becomes smaller, the weight balance can be adjusted by a simple operation to improve the efficiency of the kneading treatment, and the kneading treatment effect of the material to be kneaded in the kneading container can be improved. The object of the present invention is to provide a kneading apparatus capable of simplifying the weight balance adjusting structure by utilizing the inclination of the container holder adopted for the purpose of enhancement.

According to a first characteristic configuration of the present invention, a rotating body is attached to a revolving shaft interlocked with a rotation driving means, and a container holder for detachably holding a kneading container is attached to a plurality of circumferential directions of the rotating body. A kneading apparatus provided with a rotation driving means for driving and rotating the container holder while being provided so as to be able to rotate around an inclined axis that intersects the revolution axis of the shaft,
A weight balance adjuster comprising a balance weight movable in the direction of the axis of rotation of the container holder and a balance adjustment operation means for moving the balance weight in the direction of the axis of rotation is detachable from the container holder. It is in the point which is constituted.

  According to the above configuration, when the number of kneading containers having the same weight to be kneaded is larger than the number of container holders equipped on the rotating body, the kneading containers are respectively attached to the container holders of the rotating body. As a result, the weight balance is maintained in a good state due to the rotation of the inner wall of the container due to the rotational force around the inclined axis that intersects with the centrifugal force caused by the revolving motion and the influence of gravity, etc. The materials to be kneaded in the individual kneading containers can be kneaded efficiently and uniformly.

  When the number of kneading containers of the same weight to be kneaded is less than the number of container holders equipped on the rotating body, the balance weight position based on the weight of the kneading container is placed on the empty container holder. Wear a weight balance adjuster that is adjusted.

  As this weight balance adjuster, since the rotation axis of the container holder is an inclined axis that intersects the revolution axis, by moving the balance weight in the direction of the rotation axis by the balance adjustment operation means, The weight balance can be adjusted by changing the position of the balance weight in the revolving radius direction.

  Then, the weight balance adjusting tool that has been subjected to the weight balance adjustment operation mounted on the empty container holder can smoothly rotate the rotating body with little vibration, and the material to be kneaded in the kneading container can be The kneading state can be reliably processed.

  Accordingly, when the number of kneading containers having the same weight is smaller than the number of container holders of the rotating body while allowing a plurality of kneading containers having the same weight to be kneaded simultaneously, It is only necessary to attach the weight balance adjustment tool to the empty container holder without removing the container holder and rotation driving means from the body, and the weight balance adjustment tool itself is compatible with multiple types of kneading containers with different weights. Therefore, the weight balance can be adjusted with a simple operation to improve the kneading efficiency.

  Furthermore, the weight balance is adjusted by simply moving the balance weight in the direction of the axis of rotation by utilizing the inclination of the container holder adopted to enhance the kneading treatment effect of the material to be kneaded in the kneading container. Therefore, the structure of the weight balance adjuster can be simplified.

  A second characteristic configuration according to the present invention is that the weight balance adjuster is provided with a lock unit that can be switched between a locked state in which the balance adjustment operation unit cannot be operated and a lock released state.

  According to the above configuration, when the weight balance adjuster is attached to the container holder, or when kneading is performed by revolution and rotation, the balance adjusting operation means of the weight balance adjuster operates in an unintended state and is weight balanced. Can be prevented from collapsing.

  According to a third characteristic configuration of the present invention, in the weight balance adjuster, the weight holder that is detachably attached to the container holder has a screw shaft on which the balance weight is screwed. The weight holder is rotatably supported around the core, and the weight holder is provided with a slit in which a protrusion provided on the balance weight is movably engaged in the direction of the axis of rotation, and is formed on the outer peripheral surface of the weight holder. On the side of the slit, there is an adjustment scale display portion having the protrusion as a balance adjusting needle.

  According to the above configuration, when the screw shaft supported by the weight holding body is rotated, the balance weight screwed to the screw shaft moves in the direction of the axis of rotation and corresponds to the weight of the kneading container to be kneaded. The weight balance can be easily adjusted, and by using the protrusion for preventing the weight balance from rotating as a balance adjustment needle, an adjustment scale display unit required for weight balance adjustment can be provided in terms of cost and It can be advantageously configured in terms of structure.

  According to a fourth characteristic configuration of the present invention, the weight holder includes a bottomed cylindrical case having a bearing portion that supports the lower end portion of the screw shaft and the slit, and a bearing that supports the upper end portion of the screw shaft. And a shaft support member fixed in a horizontal posture at a portion excluding the slit forming portion in the opening of the case.

  According to the above configuration, the bottomed cylindrical case is formed with a slit provided on the balance weight so that the protrusion is movably engaged in the direction of the axis of rotation, but at the opening of the case excluding the portion where the slit is formed. The case can be constructed firmly by the shaft support member fixed in the horizontal posture.

  According to a fifth characteristic configuration of the present invention, the rotation driving means includes a pulley portion formed on an outer peripheral surface of a bearing member of the revolving shaft, a pulley portion provided in an integrally rotated state with the container holder, A belt wound around the pulley portion and a guide pulley that bends and guides the belt at the intersection of the belt winding planes of the two pulley portions.

  According to the above configuration, the pulley portion of the container holder rotates as much as the belt is wound around the pulley portion of the bearing member on the fixed side as the container holder revolves. The structure of the rotation driving means can be simplified and the manufacturing cost can be reduced.

Cross-sectional front view showing the kneading apparatus of the first embodiment of the present invention Vertical side view of kneading machine Exploded perspective view of weight balance adjuster Exploded sectional view of weight balance adjuster Sectional drawing of the principal part when attaching a weight balance adjustment tool to a container holder Perspective view when setting the kneading container in the mounting case Sectional drawing of the principal part when mounting | wearing with the mounting case holding a kneading container to a container holder

[First Embodiment]
FIG. 1 and FIG. 2 show a kneading apparatus for kneading a pharmaceutical preparation such as an ointment, a patch, an eye ointment, etc., which is an example of a fluid material to be kneaded, by revolution and rotation, and is made of rubber disposed at four corners An upper opening housing 4 having an operation panel 3 is attached to a metal base bottom plate 2 that can be adjusted in height via an adjust 1 with a grounding body 1a. A lid cover 5 that is swingable up and down in the vertical direction around the horizontal axis on the rear surface side is pivotally mounted, and an apparatus installation space S is formed inside the base bottom plate 2, the housing 4, and the lid cover 5. Has been.

  A metal anti-vibration table 7 is attached to the base bottom plate 2 in the apparatus installation space S via anti-vibration rubbers 6 arranged at a plurality of locations (six locations in the embodiment). A lower connecting flange portion 9a of a bearing member (an example of a bearing portion) 9 that rotatably supports the revolving shaft 8 around a revolving shaft core Y1 in the vertical direction (vertical direction) is a fastening means 11 such as a bolt. And a revolving drive means having a drive shaft 10A fitted and connected to a connecting hole formed in the lower end portion of the revolving shaft 8 in an integrally rotated state at the lower end portion of the bearing member 9. An example of a revolution driving motor 10 is fixedly connected by fastening means 11 such as a bolt.

  The kneading container 14 can be attached to and detached from two places in the circumferential direction of the rotating body 13 fixedly connected to the upper end shaft portion of the revolving shaft 8 through a mounting case 12 as shown in FIGS. A container holder 15 having an upper opening held on the rotating shaft 8 is rotatably provided around a rotation axis Y2 that intersects the revolution axis Y1 of the revolution axis 8 at an inclination angle of 45 degrees. A rotation driving means B is provided for driving and rotating 15 around the rotation axis Y2 in conjunction with the drive rotation of the revolution shaft 8.

  Therefore, by attaching the kneading container 14 to each container holder 15 of the rotating body 13 via the mounting case 12, the centrifugal force due to the revolving motion around the revolution axis Y1 and the rotation around the revolution axis Y2. The pharmaceutical preparation in each kneading container 14 can be kneaded efficiently and uniformly by the rotation of the inner wall surface of the kneading container 14 due to the rotation and the influence of gravity.

  Further, as shown in FIGS. 3 to 5, the balance weight 25 that can move in the direction of the rotation axis Y <b> 2 of the container holder 15, and the balance adjustment operation means 26 that moves the balance weight 25 in the direction of the rotation axis Y <b> 2. The weight balance adjuster A provided with the above is configured to be selectively attachable to both the container holders 15, and the weight balance adjuster A disables the balance adjustment operation means 26. Locking means 27 that can be switched between a locked state and an unlocked state is provided.

  The rotating body 13 includes a central connecting member 13A fixedly connected to the upper end shaft portion of the revolution shaft 8 in a state of integral rotation, and a pair of fixedly connected to both side surfaces of the central connecting member 13A in a posture along the rotational radius direction. It is comprised from the connection side plate 13B and the outer side connection member 13C fixedly connected by the outer side edge part of both the said connection side plates 13B.

  Each of the outer connecting members 13C supports a cylindrical shaft portion 18A of the pulley 18 on the rotating side constituting one pulley portion of the rotation driving means B so as to be rotatable around the rotation axis Y2 of the container holder 15. The container holder 15 is fixedly connected to a recess 18a formed on the upper surface of the rotating pulley 18 by a fastening means 11 such as a screw in a state where the bottom of the container holder 15 is fitted. Furthermore, in this fixedly connected state, the shaft portion 15 </ b> A protruding from the center of the bottom surface of the container holder 15 is configured to fit into the cylindrical shaft portion 18 </ b> A of the rotation side pulley 18.

An upper opening container support case 16 having two inclined bottom plates 16a facing each other in a substantially V shape at an inclination angle of 45 degrees with respect to the revolution axis Y1 is bolted to the central connecting member 13A of the rotating body 13. And a flange that is integrally formed in the vicinity of the upper end of the outer peripheral surface of the container holder 15 at the periphery of the through-hole formed in the both inclined bottom plates 16a of the container support case 16 15B is arranged adjacent to each other so as to be relatively rotatable.

  The rotation driving means B forms pulley grooves 17 at two locations on the upper and lower sides of the outer peripheral surface of the bearing member 9 to form a fixed pulley portion integrated with the bearing member 9, and both the pulley grooves 17 And an endless belt 19 is wound around the pulley 18 on the rotating side supported by the both outer connecting members 13C, and the belt winding plane of the pulley groove 17 and the rotating side are connected to the connecting side plate 13B of the rotating body 13. A guide pulley 20 that bends and guides the belt 19 is attached at the intersection of the pulley 18 and the belt winding plane.

  As the container holder 15 revolves, the pulley 18 on the container holder 15 side rotates as much as the belt 19 is wound around the pulley groove 17 of the bearing member 9 on the fixed side. Thus, the structure of the rotation driving means B can be simplified and the manufacturing cost can be reduced.

  As shown in FIGS. 3 to 5, the weight balance adjuster A is configured such that a disc is attached to a bottomed cylindrical weight holder 23 that is selectively detachably attached to both container holders 15. A screw shaft 24 screwed with a balance weight 25 configured in a shape is rotatably supported around the rotation axis Y2, and the rotation axis Y2 of the peripheral wall portion 23a of the weight holder 23 is At two locations opposite to each other in the diametrical direction that passes, joint rotation preventing projections 25a provided at two locations in the circumferential direction of the outer circumferential surface of the balance weight 25 facing the same are movably engaged in the direction of the rotation axis Y2. A slit 30 is formed.

  The weight holding body 23 includes a bearing portion 31 that supports the lower end shaft portion 24 a of the screw shaft 24 and a bottomed cylindrical synthetic resin case 23 A that includes the slit 30, and an upper end shaft portion 24 b of the screw shaft 24. And a transverse portion excluding the slit 30 formation portion in the opening of the case 23A, that is, across a diametrical transverse portion perpendicular to the line segment connecting the slits 30. It is composed of a shaft support member 23B made of synthetic resin that is fixed by screws in a racking posture.

  The bearing portion 31 on the case 23A side includes a bearing cylinder 31A with a flange 31a for receiving the lower end shaft portion 24a of the screw shaft 24 in a relatively rotatable fitting state, and the bearing cylindrical body 31A. A bearing hole 31B formed through the center of the bottom plate 23b of the case 23A in a state of being held together, and the bearing portion 32 on the side of the shaft support member 23B is positioned relative to the upper end shaft portion 24b of the screw shaft 24. The shaft support member 23B is composed of a bearing hole that is formed so as to penetrate the shaft support member 23B while being rotatably fitted and held.

  At the peripheral edge of the opening on the outer peripheral surface of the case 23A and in the diametrical transverse part perpendicular to the line segment connecting the two slits 30, there are two peripheral edges of the opening peripheral edge of the container holder 15 corresponding thereto. An arcuate engagement protrusion 33 that engages with the engagement recess 15 </ b> C formed at a location from above and rotates the weight balance adjusting tool A integrally with the rotation of the container holder 15 projects outward in the radial direction. In addition to being integrally formed, a positioning recess 34 is formed in the center portion in the circumferential direction of the both engaging projections 33 so that both end portions in the longitudinal direction of the shaft support member 23B engage from above.

  Insertion holes 35 for fastening screws for fastening and fixing the case 23A and the shaft support member 23B are formed at both ends in the longitudinal direction of the shaft support member 23B, and fastening screws are provided in the positioning recesses 34 of the case 23A. A screw hole 36 is formed.

  The balance adjusting operation means 26 is fixed to the upper end shaft portion 24b of the screw shaft 24 projecting upward through the bearing portion 32 on the shaft support member 23B side with a pin or the like in a state of integral rotation. Of the peripheral wall portion 23a of the case 23A, both side portions in the circumferential direction including the formation regions of the slits 30 are formed on a flat display surface 39 along a tangential direction, and the balance weight is formed on the display surface 39. An adjustment scale display section 40 is formed using 25 protrusions 25a as balance adjustment needles.

  The lock means 27 includes a lock pin 42 that can be selectively engaged from below with a locking hole 41 formed at an equal pitch in the circumferential direction of the rotation operation handle 38, and the lock pin 42 in the engagement direction. A compression coil spring 43 that is an example of a biasing means that moves and biases the upper side, and a lock release operation pin that pushes down the lock pin 42 to the unlock position against the biasing force of the compression coil spring 43. 44 as a main component.

  The lock pin 42 and the unlocking operation pin 44 are integrally coupled via a linkage plate 45, and a first mounting hole 46 into which the lock pin 42 is movably inserted into the shaft support member 23B. A second mounting hole 47 into which the compression coil spring 43 and a part of the unlocking operation pin 44 enter is formed.

  As shown in FIG. 6, the mounting case 12 is formed in a bottomed cylindrical shape that is selectively detachably mounted to both the container holders 15, and the rotation axis Y2 of the peripheral wall 12A is provided. Slits 12B that open upward along the direction of the rotation axis Y2 are formed at two locations that face each other in the diametrical direction that passes through, and at the periphery of the opening portion of the outer peripheral surface of the peripheral wall 12A, and both the slits At the diametrical crossing portion orthogonal to the line segment connecting 12B, engage with the engagement concave portion 15C formed at two locations in the circumferential direction of the opening peripheral portion of the container holder 15 corresponding thereto, from above, An arcuate engagement protrusion 12C that integrally rotates the mounting case 12 together with the rotation of the container holder 15 is integrally formed so as to project outward in the radial direction.

The peripheral wall 12A of the mounting case 12 is formed in a taper shape extending upward so that the maximum outer diameter of the portion fitted and mounted on the container holder 15 is slightly larger than the maximum inner diameter of the inner peripheral surface of the container holder 15. Thus, when the container holder 15 is mounted, the peripheral wall 12A of the mounting case 12 is fitted and mounted in a state where the peripheral wall 12A is reduced in diameter against the elastic restoring force.
The kneading container 14 mounted in the container housing recess 12D in the mounting case 12 is configured to be held and held by the diameter reduction of the peripheral wall 12A of the mounting case 12.

  When the number of kneading containers 14 of the same weight to be kneaded is larger than the number of container holders 15 equipped on the rotating body 13, the kneading containers 14 are placed in the container holders 15 of the rotating body 13. , The weight balance is good due to the centrifugal force due to the revolving motion around the revolving axis Y1, the rotation of the inner wall surface of the kneading vessel 14 due to the revolving motion around the revolving axis Y2, the influence of gravity, etc. The pharmaceutical preparation in each kneading container 14 can be kneaded efficiently and uniformly while maintaining the state.

  When the number of kneading containers 14 having the same weight to be kneaded is smaller than the number of container holders 15 equipped on the rotating body 13, the kneading container containing the pharmaceutical preparation is placed in the empty container holder 15. The weight balance adjuster A in which the position of the balance weight 25 is adjusted by the rotation operation handle 38 of the balance adjustment operation means 26 based on the weight of 14 is mounted.

  As the weight balance adjuster A, the rotation axis Y2 of the container holder 15 is an inclined axis that intersects the revolution axis Y1 at an angle of 45 degrees. By moving in the direction of the rotation axis Y2, the weight balance can be adjusted by changing the position of the balance weight 25 in the revolving radius direction, and the adjusted weight balance state is related to the rotation of the container holder 15. Can be maintained.

  Therefore, the weight balance adjuster A that has been subjected to the weight balance adjustment operation attached to the empty container holder 15 can smoothly rotate the rotating body 13 with little vibration, so The kneaded material can be reliably processed into a predetermined kneaded state.

  In addition, the balance weight 25 is simply moved in the direction of the rotation axis Y2 by utilizing the inclination of the container holder 15 that is taken to enhance the kneading effect of the pharmaceutical preparation (material to be kneaded) in the kneading container 14. Since the weight balance can be adjusted only by the operation, the structure of the weight balance adjusting tool A can be simplified.

[Other Embodiments]
(1) In the first embodiment described above, a container for holding the kneading container 14 detachably at two locations in the circumferential direction of the rotating body 13 driven and rotated around the revolution axis Y1 directly or via the mounting case 12. Although the holder 15 is provided, the container holder 15 may be provided at three or four or more locations in the circumferential direction of the rotating body 13.

  (2) In the first embodiment described above, the container holder 15 is rotatably provided around the rotation axis Y2 that intersects the revolution axis Y1 of the revolution axis 8 at an inclination angle of 45 degrees. The tilt angle of the rotation axis Y2 of the container holder 15 with respect to the revolution axis Y1 may be set to an angle other than 45 degrees.

  (3) The lock means 27 of the weight balance adjuster A is not limited to the structure described in the first embodiment, and a lock state in which the balance adjustment operation means 26 cannot be adjusted. Any structure can be used as long as it can be switched to the unlocked state that allows the adjusting operation.

  (4) In the first embodiment described above, the rotation driving means B is configured as a belt drive type utilizing revolving motion, but is not limited to this configuration, and is directly coupled to or interlocked with the container holder 15. You may comprise from the motor for autorotation drive.

  (5) In the first embodiment described above, the revolution driving means 10 is constituted by the revolution driving motor directly connected to the revolution shaft 8. However, a gear is provided in the transmission system between the revolution driving motor and the revolution shaft 8. A transmission mechanism, a belt transmission mechanism, or the like may be interposed.

A Weight balance adjuster B Rotation drive means Y1 Revolution shaft core Y2 Rotation shaft core 8 Revolution shaft 10 Revolution drive means (revolution drive motor)
13 Rotating body 14 Kneading container 15 Container holder 17 Pulley part (pulley groove)
18 Pulley (pulley)
19 Belt 20 Guide pulley 23 Weight holder 23A Case 23B Shaft support member 24 Screw shaft 25 Balance weight 25a Protrusion 26 Balance adjustment operation means 27 Lock means 30 Slit 31 Bearing part 32 Bearing part (bearing hole)
40 Adjustment scale display

Claims (5)

A rotating body is attached to a revolving shaft interlocked with the revolving drive means, and container holders that detachably hold the kneading containers are crossed with respect to the revolving shaft center of the revolving shaft at a plurality of circumferential directions of the rotating body. A kneading device provided with a rotation driving means for driving and rotating the container holder while being provided so as to be rotatable around an inclined axis.
A weight balance adjuster comprising a balance weight movable in the direction of the axis of rotation of the container holder and a balance adjustment operation means for moving the balance weight in the direction of the axis of rotation is detachable from the container holder. A kneading apparatus configured.   The kneading apparatus according to claim 1, wherein the weight balance adjuster is provided with a lock unit that can be switched between a locked state and an unlocked state in which the balance adjustment operation unit cannot be operated.   To constitute the weight balance adjuster, a weight holder that is detachably attached to the container holder has a screw shaft that is screwed with the balance weight supported rotatably around a rotation axis. In addition, a slit is formed in the weight holder so that a protrusion provided on the balance weight is movably engaged in the direction of the axis of rotation, and the protrusion is provided on the side of the slit on the outer peripheral surface of the weight holder. The kneading apparatus according to claim 1 or 2, wherein an adjustment scale display portion serving as a balance adjusting needle is formed.   The weight holder includes a bearing portion supporting the lower end portion of the screw shaft and a bottomed cylindrical case provided with the slit, and a bearing portion supporting the upper end portion of the screw shaft, The kneading apparatus according to claim 3, comprising a shaft support member fixed in a horizontal posture at a portion of the opening excluding the slit forming portion.   The rotation driving means includes a pulley portion formed on an outer peripheral surface of a bearing member of the revolution shaft, a pulley portion provided in an integrally rotating state with the container holder, a belt wound around both pulley portions, The kneading apparatus according to any one of claims 1 to 4, comprising a guide pulley that bends and guides the belt at an intersection of the belt winding planes of both pulley portions.

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