JP2008049335A - Mixer and mixing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety-intensive mixer which can keep its structure simple, hardly become mechanically worn out or damaged, make a reset to its original point position or a change to any selected number of revolution executable by a sequential control of the drive source through multi-stage and easy adjustment, and facilitate the replacement of a mixing container, the supply of materials to be mixed into the mixing container and the discharge of a mixed material to the outside of the mixing container, and to provide a mixing method. <P>SOLUTION: This mixer comprises a mixing container, a container housing part, two shafts and a clamping part, the two shafts having a positional relationship at right angles to each other. In addition, one shaft is connected with a drive shaft through an arm, while the other shaft is connected with a driven shaft through an arm. Further, a rotation control means which controls the number of revolution of the drive shaft, controls at least either of acceleration or deceleration to the drive source for rotating the drive shaft. Besides, the preferable mode of this mixer is that it is equipped with an attachment/detachment means which makes the mixing container attachable to/detachable from the container housing part by fixing a part of the mixing container with the help of a chucking part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mixer suitably used for mixing toner and carrier, dyes, pharmaceuticals, metal powders, plastics, foods, feeds, and the like, and a mixing method using the mixer.

2. Description of the Related Art Conventionally, various mixers have been proposed that are suitably used for mixing a toner and a carrier used for electrophotographic image formation.
For example, in the mixer described in Patent Document 1, a constant rotational speed is transmitted from a power source to both the left and right rotating shafts via a gear so as to be reversely rotated. In order to absorb the fluctuation of the number, an arm for holding the mixing container via a spring is provided inside the rotating shaft (see FIGS. 5 and 6 of Patent Document 1). The rotating shaft of Patent Document 1 repeats acceleration and deceleration, but has a structure in which the rotating shaft is coupled to the arm via a spring, so the number of parts is large, the structure is complicated, and the spring and the like There is a problem that mechanical damage is likely to occur.
Moreover, in the mixer described in Patent Document 1, power is transmitted to both the left and right shafts so that a constant-speed motor rotation is reversely rotated via gears. At this time, in order to absorb fluctuations in the number of rotations generated on the left and right of the rotation shaft, an arm for holding the container via a spring is arranged on the rotation shaft inside the shaft driven by constant rotation. There is no disclosure about the supply of the object to be mixed into the mixing container and the discharge of the mixed mixture out of the mixing container.

Moreover, as a mixer generally marketed conventionally, there are a mixer manufactured by Changzhou Janda Dryers and a mixer manufactured by Jiafa granulating drinking equipment. In these mixers, the mixing container is integrated with the main body of the mixer, and as shown by the dotted line in FIG. 1, the powder which is the object to be mixed is charged while the mixer 100 is inclined obliquely. As shown by the solid line in FIG. 1, the rotational position of the mixer 100 is shifted, and the mixture is discharged in an inclined state.
In this case, when the mixing object is charged, the charging port 101 of the mixer is tilted upward and the charging position is raised. Therefore, a charging device 102 such as a dedicated lifting lifter is required. On the other hand, at the time of discharging the mixture, the mixing is performed with the mixer 100 tilted obliquely. However, the angle of the mixing container can be increased by 30 degrees or more due to structural limitations to which the arm of the mixer is connected. Further, the angle at the cone portion of the discharge port 101 could not be further increased, the mixture inside the mixing container could not be discharged, and the entire amount of the mixture could not be discharged unless the operator performed a scraping operation.
On the other hand, in the mixer manufactured by Willy A Bachofen (Shaker Mixer T10B type), the mixing container is not integrated with the mixer, and the mixing container is set in the container housing unit integrated with the mixer. (See FIG. 2). In this type of mixer, in the case of a 2 liter size mixer, the total weight of the object to be mixed and the mixing container is about 3 kg and can be removed by hand. In the case of a mixer having a size of 20 liters or more, if the specific gravity of the object to be mixed is large, the total weight becomes heavier than 30 kg. In particular, in the case of a mixer having a size of 40 liters or more, the total weight is 50 kg or more. Therefore, the replacement work of the mixing container is very hard work, and its improvement is strongly desired.

  In addition, in the shaker mixer T10B manufactured by Willy A Bachofen, only one of the two shafts that rotatably and swingably supports the container accommodating portion at both ends of the container accommodating portion that accommodates the mixing container therein. The driving method is adopted. Specifically, as shown in FIG. 2 and FIG. 3, in order to swing and rotate the drive shaft side and the driven shaft side of the container housing portion 1 alternately at uniform timing, the rotation of the drive motor 11 is driven by the drive shaft. 6, the speed is increased and decreased by a rotation increasing / decreasing mechanism 10 including a gear 8 and a chain 9. However, such a method has a problem that the number of parts is large, the structure is complicated, and further, the gear 8 and the chain 9 are likely to be consumed or mechanically damaged. Further, in order to stop at a fixed position after the mixing operation is completed, a motor 13 for returning to the origin position is required in addition to the driving motor 11. Further, as shown in FIG. 3, since the basic rotational speed is changed by changing the position where the pulley 12 for changing the rotational speed is applied, it is difficult to easily adjust the multi-stage rotational speed.

In the mixer shown in FIGS. 2 and 3, the rotational speed of the drive shaft and the rotational speed of the driven shaft have a relationship as shown in the graph of FIG. The graph on the right side in FIG. 4 shows changes in the rotational speed of the drive shaft, and the graph on the left side in FIG. 4 shows changes in the rotational speed of the driven shaft at the same timing as the drive shaft.
4 shows the positional relationship between the drive shaft 6 and the first arm 4 and the driven shaft 7 and the second arm 5 at the time indicated by the lead lines in the graph. At this time, on the drive shaft side, the first arm 4 is vertical and the rotational speed is fast, while on the driven shaft side, the second arm 5 is horizontal and the rotational speed is slow.
The lower diagram in FIG. 4 shows the positional relationship between the drive shaft 6 and the first arm 4 and the driven shaft 7 and the second arm 5 at the time when the rotation has advanced 1/4 turn from the upper diagram. At this time, on the drive shaft side, the first arm 4 becomes horizontal and the rotational speed becomes slow, while on the driven shaft side, the second arm 5 becomes vertical and the rotational speed becomes fast.
As described above, in the mixer shown in FIGS. 2 and 3, the rotational speed is controlled by the positional relationship between the drive shaft and the driven shaft.

  Furthermore, the mixer described in the prior art document has a structure in which the clamp part is opened and the mixing container is removed from the container accommodating part. However, the clamp portion of the container housing portion has a safety problem because the mixing rotation operation can be performed without locking the clamp portion after the mixing container is installed in the container housing portion.

JP-T 56-500026

An object of the present invention is to solve the conventional problems in response to the above-mentioned demands and achieve the following object. That is, the present invention preferably includes an attaching / detaching means having a chuck portion for fixing a part of the mixing container, so that even if the total weight of the object to be mixed and the mixing container is 30 kg or more, it is mixed by one operator. Provided is a mixer capable of exchanging containers, easily supplying an object to be mixed into the mixing container, and easily discharging the mixed mixture out of the mixing container, and a mixing method using the mixer For the purpose.
In addition, the present invention has a small number of parts in the rotation control means for controlling the rotation speed of the drive shaft, has a simple structure, hardly causes mechanical wear and damage, returns to the origin position, and changes the rotation speed. Can be implemented by sequence control with one drive source, no motor for returning to the origin position is required, the number of rotations can be easily changed in multiple stages, and the mixer is excellent in safety and the mixing It aims at providing the mixing method using a machine.

Means for solving the problems are as follows. That is,
<1> A mixing container for containing a mixing object, a container accommodating part for accommodating the mixing container, and two container parts that support the container accommodating part in a swingable and rotatable manner at both ends of the container accommodating part. A shaft, and a clamp portion at an upper end opening of the container housing portion;
The two axes are in a perpendicular relationship with each other, one axis is connected to the drive shaft via the arm, and the other axis is connected to the driven shaft via the arm,
The rotation control means for controlling the rotation speed of the drive shaft controls at least one of acceleration and deceleration with respect to a drive source for rotating the drive shaft.
In the mixer according to <1>, since the drive source is servo-controlled, at least one of acceleration and deceleration of the drive shaft can be realized without a mechanically complicated structure. Further, the return to the origin position and the change of the rotation speed can be performed only by the sequence control with one drive source, a complicated mechanical structure is unnecessary, and the origin position return motor is not necessary. In addition, since the control of the basic rotational speed can be freely set on the PLC (Program Logic Controller) side, the rotational speed can be easily changed in multiple steps, including 5 parts including consumable parts such as chains and springs. % Of parts can be reduced.
<2> The mixer according to <1>, wherein the drive source is a servo motor.
In the mixer described in <2>, since the servo motor is used as the drive source, the rotation speed can be defined for each angle of the drive shaft.
<3> The rotation control means has an angle-rotation number table that defines a relationship between an angle in one rotation of the drive shaft and the rotation number of the drive shaft, and adjusts the rotation number of the servo motor based on the table. It is a mixer as described in <2>.
In the mixing machine of <3>, the rotational speed with respect to the angle is tabulated internally during control, and the rotational speed can be controlled more accurately by referring to this table and transmitting the rotational speed to the servo motor. it can.
<4> The mixer according to any one of <1> to <3>, further including attachment / detachment means for fixing a part of the mixing container with a chuck portion and making the mixing container detachable from the container housing portion. .
In the mixer according to <4>, when the mixing container is detached from the container housing portion, a part of the mixing container is fixed by the chuck portion, and the mixing container can be detached from the container housing portion. Even if the total weight of the object and the mixing container is 30 kg or more, the mixing container can be easily attached and detached by one operator.
<5> Before the mixing container is attached to the container housing portion, the mixing container is rotated so that the end surface on the inlet side of the mixing container faces upward, and the mixing container is lowered to input the object to be mixed from the inlet It is a mixer as described in said <4>.
In the mixer according to <5>, the end surface of the mixing container can be rotated upward by rotating and lowering the container before the mixing container is attached to the container container of the mixer, and the mixing object is It can be easily inserted from the top. Moreover, since a mixing container can be arrange | positioned low and upwards, the cleaning property in the case of a kind change of a mixing target object improves.
<6> After removing the mixing container from the container accommodating portion, the mixing container is raised and rotated to discharge the mixture from the discharge port with the end surface on the discharge port side of the mixing container facing downward <4> It is a mixer as described in.
In the mixer according to <6>, the end surface of the mixing container can be rotated downward by rotating the mixing container after the mixing container is removed from the container container of the mixer, and the mixture is discharged from the end surface of the container. It becomes possible to do.
<7> From the above <4> to <6, which has a detachable means on the carriage, and can transport either the mixing container before being attached to the container accommodating part or the mixing container after being detached from the container accommodating part by the carriage. > A mixer according to any one of the above.
In the mixer according to <7>, the attachment / detachment means is set on the carriage, and either the mixing container before being attached to the container accommodating part or the mixing container after being removed from the container accommodating part can be conveyed by the carriage. Therefore, it becomes possible to move the mixing object to the position of the previous process, and no separate conveying means to the mixer position is required. Further, the transport from the mixing process to the next process can also transport the mixing container used for the mixing as it is with the carriage, so that no separate transport means is required.
<8> a cover sensor that detects the open / closed state of the cover that covers the entire mixer;
A clamp sensor for detecting the lock state of the clamp part in the container housing part,
The mixer according to any one of <1> to <7>, wherein a mixing operation is possible in a state where the cover is closed and a state where the clamp portion is locked by the action of the clamp sensor and the cover sensor. It is.
In the mixer according to <8>, since the cover is opened by the action of the clamp sensor and the cover sensor, a mixing operation in an incompletely locked state of the clamp portion can be avoided, so that safety is improved. Greatly improved.
<9> The mixer according to <8>, wherein the clamp sensor is a transmission sensor.
In the mixer according to <9>, by using a transmission sensor as a clamp sensor, when detecting a moving clamp part, it can be installed on a fixed part (cover side) that does not move, and is non-contact It becomes possible to sense with.
<10> The mixer according to any one of <8> to <9>, wherein the clamp sensor is installed on the cover.
<11> Using the mixer according to any one of <1> to <10>, placing the object to be mixed in a mixing container, and swinging and rotating the mixing container to mix the object to be mixed It is a mixing method characterized.
In the mixing method according to <11>, the mixing object can be safely and effectively mixed using the mixer of the present invention.
<12> The mixing method according to <11>, which is used for mixing the toner and the carrier.

According to the present invention, conventional problems can be solved, the number of parts in the rotation control means for controlling the rotation speed of the drive shaft is small, the structure is simple, mechanical wear and damage are not likely to occur, and the origin Return to position and change of rotation speed can be performed by sequence control with one drive source, no motor for return to origin position is required, rotation speed can be easily adjusted in multiple steps and safety A mixer excellent in properties and a mixing method using the mixer can be provided.
In addition, according to the present invention, since it is preferably provided with an attaching / detaching means having a chuck portion for fixing a part of the mixing container, one worker even if the total weight of the mixing object and the mixing container is 30 kg or more. The mixing container can be replaced by the above, and the mixing object and the mixing method using the mixer can be easily supplied into the mixing container, and the mixed mixture can be easily discharged out of the mixing container. Can be provided.

(Mixer and mixing method)
The mixing machine of the present invention includes a mixing container, a container accommodating portion, two shafts (first shaft and second shaft), a drive shaft, a driven shaft, an arm (first arm and second arm), and a clamp portion. And a rotation control means and a drive source, preferably an attachment / detachment means having a chuck portion, and further, if necessary, other means.
The mixing method of the present invention uses the mixer of the present invention, puts the object to be mixed into the mixing container, and rocks and rotates the mixing container to mix the object to be mixed.
Hereinafter, the details of the mixing method of the present invention will be clarified through the description of the mixer of the present invention.

The mixing container is used for mixing by mixing the object to be mixed therein, and the size, shape, material, etc. of the mixing container are not particularly limited and can be appropriately selected according to the purpose. The size and shape can be appropriately selected according to the size and shape of the container housing portion in which the mixing container is accommodated, the size of the mixer, and the like.
The container accommodating portion is a member that accommodates the mixing container therein, and the size, shape, material, and the like of the container accommodating portion are not particularly limited and can be appropriately selected according to the purpose.

The two shafts (the first shaft and the second shaft) support the container housing portion so as to swing and rotate at both ends of the container housing portion, and the two shafts are positioned at right angles to each other. In this relationship, one shaft is connected to the drive shaft via the arm, and the other shaft is connected to the driven shaft via the arm. There is no restriction | limiting in particular about the magnitude | size of the said 2 axis | shaft, a shape, a material, etc., It can select suitably according to the objective.
The arms (first arm and second arm) connect each of the two shafts to a drive shaft or a driven shaft, and there are no particular restrictions on the size, shape, material, etc. of the arms. And can be appropriately selected according to the purpose.

  The said clamp part is provided in the upper end opening part of the said container accommodating part so that opening and closing is possible, this mixing part is accommodated in the container accommodating part by opening this clamp part. The clamp part is mixed and rotated while being locked by a lock mechanism. There is no restriction | limiting in particular about the magnitude | size, shape, material, etc. of this clamp part, According to the objective, it can select suitably.

The rotation control means is a means for controlling the rotational speed of the drive shaft, and controls at least one of acceleration and deceleration with respect to a drive source for rotating the drive shaft. For example, a PLC (Program) A combination of a logic controller and a servo driver, a sequencer, and the like.
The rotation control means has an angle-rotation number table that defines the relationship between the angle of one rotation of the drive shaft and the rotation speed of the drive shaft, and adjusts the rotation speed of the servo motor based on the table. preferable. Examples of the angle-rotation speed table include a table that defines the rotation speed of the drive shaft for each 1 ° angle of the drive shaft obtained by dividing one rotation of the drive shaft by 360.

  There is no restriction | limiting in particular as said drive source, Although it can select suitably according to the objective, A servomotor is preferable from the point which can prescribe | regulate the rotation speed for every angle of a drive shaft. Examples of the servo motor include a DC servo motor, an AC servo motor, a direct drive servo motor, and a step motor. Specific examples include SGMGH manufactured by Yaskawa Electric Co., Ltd., HC-SF manufactured by Mitsubishi Electric Co., Ltd., and the like.

  The mixing object is not particularly limited and may be appropriately selected depending on the purpose. For example, any of those having a large specific gravity difference or a material having a small specific gravity difference may be used. Applicable to all kinds of liquid, liquid and liquid. Specific examples of the object to be mixed include toner and carrier mixing, dyes, pharmaceuticals, metal powders, plastics, foods, and feeds.

In the mixer of the present invention, it is preferable to include an attaching / detaching means having a chuck portion. The attachment / detachment means is not particularly limited as long as the mixing container can be attached / detached from the container accommodating portion, and can be appropriately selected according to the purpose. For example, a substantially U-shaped protrusion is formed on the bottom of the mixing container. And a means for fixing the mixing container by hooking the protrusion with a hook of a carriage, an attaching / detaching means using an electromagnet, and the like.
In this case, before the mixing container is attached to the container housing portion, the mixing container is rotated so that the end face on the inlet side of the mixing container faces upward, and the mixing container is lowered to remove the mixing object from the inlet. Since it can be input, the input workability is improved.
Also, after removing the mixing container from the container housing portion, the mixing container can be raised and rotated so that the mixture can be discharged from the discharge port with the end surface on the discharge port side facing downward, so that the discharge work Improves.
Furthermore, since the carriage has an attaching / detaching means, and either the mixing container before being attached to the container housing part or the mixing container after being removed from the container housing part can be transported by the carriage, the mixing object can be input. It is possible to move to the position of the previous process, and no separate conveying means to the mixer position is required. In addition, since the mixing container used for mixing can be transferred as it is with the carriage as it is from the mixing step to the next step, no additional transfer means is required and convenience is improved.

  The mixer has a cover sensor that detects the open / closed state of the cover that covers the entire mixer as an interlock mechanism for preventing accidents caused by incorrect operation or malfunction of the machine, and locking of the clamp part in the container housing part. A clamp sensor for detecting the state, and the operation of the clamp sensor and the cover sensor enables a mixed operation in a state where the cover is closed and a state where the clamp part is locked.

The clamp sensor is not particularly limited as long as it can detect the locked state of the clamp part, and can be appropriately selected according to the purpose. When the moving clamp part is detected, the clamp sensor does not move. A transmissive sensor that can be installed on a portion (cover side) and can detect a locked state without contact is preferable. Examples of the transmissive sensor include PX-H72 manufactured by Keyence Corporation, E3Z manufactured by OMRON Corporation, and the like.
The cover sensor is not particularly limited as long as it can detect the open / closed state of the cover, and can be appropriately selected according to the purpose. Examples thereof include D4C manufactured by OMRON Corporation.

Here, the details of the mixer and the mixing method of the present invention will be described with reference to the drawings.
FIG. 5 is a schematic diagram illustrating an example of the mixer of the present invention and a mixing system that controls the mixer, and FIG. 6 is a schematic diagram illustrating a state in which the mixer can be operated. As shown in FIG. 5 and FIG. 6, this mixer includes a mixing container 25 for containing a mixing object, a container accommodating part 1 for accommodating the mixing container therein, and the container at both ends of the container accommodating part 1. The first shaft 2 that supports the housing portion 1 and the second shaft 3 are in a positional relationship in which the two shafts are perpendicular to each other, and the first shaft 2 is interposed via the first arm 4. The second shaft 3 is connected to the driven shaft 7 via the second arm 5. In FIG. 6, 20 is a cover, 30 is a clamp part, and 31 is a container clamping handle. The volume of the mixing container of this embodiment is a maximum of 45L.

  As shown in FIG. 5, the drive shaft 6 is connected to a servo motor 15 as a drive source via a speed reducer 14. The servo motor 15 is connected to a PLC (Program Logic Controller) 17 as a rotation control means via a servo driver 16, and alternately swings the drive shaft side and the driven shaft side of the container housing portion 1 at uniform timing. It is configured to move and rotate. In the present embodiment, the rotation speed of the servo motor is controlled so that the speed is increased and decreased twice for one rotation of the drive shaft.

  The rotation control means does not change the rotation speed according to the positional relationship between the drive shaft and the driven shaft as shown in FIG. 4 of the prior art, but generates a change in the rotation speed only by the drive shaft 6 as shown in FIG. Therefore, the rotation speed can be changed easily and flexibly. As shown in FIG. 7, one rotation of the drive shaft 6 is divided into 360, and the number of rotations with respect to the angle is controlled. 7 shows the state of the drive shaft 6 and the first arm 4 at the time (0 °) indicated by the lead line in the graph. The rotation control means holds, for example, an angle-speed table for each rotation angle of the drive shaft as shown in FIG. 8 and matches the angle of the drive shaft by referring to the table. The rotation speed is adjusted to control at least one of acceleration and deceleration with respect to a servo motor as a drive source.

  As shown in FIG. 9, the mixer of the present invention opens a cover (not shown), loosens the container clamping handle 31, unlocks the lock mechanism of the clamp unit 30, opens the clamp unit, and opens the container storage unit. The mixing container 25 can be taken in and out.

The mixer of the present invention shown in FIGS. 5 and 6 is an oscillating mixer having a structure in which the drive shaft moves by changing the rotational speed so that the oscillating of the mixing container is uniform left and right. 25 is detachable from the container housing part 1.
As shown in FIG. 13A, a part of the mixing container 25 can be fixed by the chuck portion 110 of the attaching / detaching means, and the mixing container can be pulled out and taken out from the container housing portion 1. On the other hand, as shown in FIG. 13B, the mixing container 25 fixed by the chuck part 110 can be attached by being pushed into the container accommodating part 1. The chucking part 110 of the attaching / detaching means is connected to the carriage 111, and either the mixing container attached to the container accommodating part or the mixing container removed from the container accommodating part can be conveyed by the carriage.
14A and 14B show an example of a method of fixing the mixing container by the chuck part 110 of the attaching / detaching means. A substantially U-shaped protrusion 112 is provided at the bottom of the mixing container 25, and the protrusion 112 is hooked by a hook 113 of a detachable carriage 111 to fix the mixing container 25. Note that the method of fixing the mixing container by the chuck portion is not limited to this method, and other methods (such as an electromagnet) are also possible.
With this attachment / detachment means, even if the total weight of the mixing object and the mixing container is a heavy object of 30 kg or more, the mixing container can be attached / detached by one operator. Further, the detachable means can be set on the carriage so that the entire mixing container can be transported. As a result, the function of attaching and detaching the mixing container to the container housing portion of the mixer is set on the carriage, and the entire mixing container can be transported, and the mixing object can be moved to the position of the previous process and mixed. There is no need for a separate transport to the machine position. Furthermore, since the mixing container used for the mixing can be transferred as it is in the transfer from the mixing to the next process, another transfer means is not required.

Further, as shown in FIG. 15, when the mixing object is charged into the mixing container 25, the mixing container is rotated to turn the mixing container end face upward, and the mixing container is lowered to lower the mixing container. It is possible to easily input the mixed object. Thus, since the mixing container can be arranged low and the charging port can be arranged upward, there is an effect that the cleaning property at the time of changing the type of the mixing object is improved.
Also, as shown in FIG. 16, when the mixture is discharged from the mixing container 25 after mixing, the mixing container 25 is raised so that the end surface on the discharge port side of the mixing container faces downward, as opposed to the time of charging. By inversion, the mixture can be easily discharged from the outlet.

Next, the interlock mechanism of the mixer of the present invention will be described with reference to the drawings.
As shown in FIG. 10, a cover sensor 42 for detecting the open / closed state of the cover 20 that covers the entire mixer in an openable / closable manner is provided at the lower portion of the mixer. In this embodiment, D4C manufactured by OMRON Corporation is used as the cover sensor.
As shown in FIG. 10, clamp sensors 41 and 41 that detect the locked state of the clamp portion 30 of the container housing portion 1 are attached to the cover 20. In this embodiment, a transmissive sensor (E3Z manufactured by OMRON Corporation) is used as the clamp sensor. In the present embodiment, the clamp sensors 41 and 41 are arranged so that the sensor optical axis 40 of the clamp sensor does not hit the container tightening handle 31 which is the forefront of the container housing portion of the mixer.

As shown in FIG. 11, when the cover is closed and the container tightening handle 31 of the clamp part 30 is loose and floating, the container tightening handle 31 is in contact with the sensor optical axis 40 of the clamp sensor. The mixed operation is interlocked by the detection of the sensor. In addition, as shown in FIG. 12, when the clamp part is not locked and detached, the container clamping handle 31 is in contact with the sensor optical axis 40 of the clamp sensor. Interlock driving.
Although not shown, the clamp is normally locked, but when the cover is open, the mixed operation is interlocked by detection of the cover sensor.
As described above, the mixer according to the present invention can perform the mixing operation only when both the state where the cover is closed and the state where the clamp part is locked are satisfied. Is significantly improved.

  As mentioned above, although the mixer and the mixing method of this invention were demonstrated in detail, this invention is not limited to the said embodiment, You may change variously in the range which does not deviate from the summary of this invention.

  The mixing machine and the mixing method of the present invention have a small number of parts in the rotation control means for controlling the rotation speed of the drive shaft, have a simple structure, hardly cause mechanical wear and damage, and return to the origin position. The number of revolutions can be changed by sequence control with a single drive source, no motor for returning to the original position is required, the number of revolutions can be easily adjusted in multiple steps, and safety is excellent. Therefore, for example, it can be used for a wide range of mixing of toner and carrier, dye, pharmaceutical, metal powder, plastic, food, feed and the like. Furthermore, the rotating and swinging function in the mixer of the present invention can be applied to the field of cleaning machines such as a drum type cleaning device.

FIG. 1 is a schematic view showing an example of a mixer in which a conventional mixing container is integrated with a mixer main body. FIG. 2 is a schematic view showing an example of a conventional mixer. FIG. 3 is a diagram showing rotation control of the drive shaft of FIG. FIG. 4 is a diagram for explaining a conventional method for controlling the rotational speeds of the drive shaft and the driven shaft. FIG. 5 is a diagram showing an example of the mixing method of the present invention using the mixer of the present invention. FIG. 6 is a diagram illustrating a state in which the clamp portion of the container housing portion is closed during operation. FIG. 7 is a diagram illustrating a method for controlling the rotational speed of the drive shaft. FIG. 8 is a table showing an example of the angle-rotation number table. FIG. 9 is a diagram illustrating a state in which the clamp portion of the container housing portion is opened when the mixing container is attached or detached. FIG. 10 is a diagram illustrating a state in which the clamp portion is normally locked. FIG. 11 is a view showing a state where the container clamping handle is loosened. FIG. 12 is a diagram illustrating a state where the lock of the clamp portion is defective. FIG. 13A is a diagram illustrating a state in which a part of the mixing container is fixed by the chuck portion of the attaching / detaching means and the mixing container is taken out from the container housing portion. FIG. 13B is a diagram illustrating a state in which the mixing container fixed by the chuck unit is attached to the container housing unit. FIG. 14A is a diagram illustrating an example of a method of fixing the mixing container by the chuck portion of the attaching / detaching means. FIG. 14B is a diagram illustrating an example of a method of fixing the mixing container by the chuck portion of the attaching / detaching means. FIG. 15 is a diagram illustrating a state in which the mixing object is put into the mixing container. FIG. 16 is a diagram showing how the mixture is discharged from the mixing container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container accommodating part 2 1st axis | shaft 3 2nd axis | shaft 4 1st arm 5 2nd arm 6 Drive axis 7 Driven axis 8 Gear 9 Chain 10 Rotation increase / decrease mechanism 11 Drive motor 12 Pull speed change pulley 13 Origin Position return motor 14 Reducer 15 Servo motor 16 Servo driver 17 PLC
DESCRIPTION OF SYMBOLS 20 Cover 25 Mixing container 30 Clamp part 31 Container clamping handle 40 Sensor optical axis 41 Lock part sensor 42 Cover sensor 100 Mixer 101 Input port (discharge port)
110 Chuck part 111 Dolly

Claims (11)

A mixing container for containing an object to be mixed therein, a container accommodating portion for accommodating the mixing container therein, and two shafts that swingably and rotatably support the container accommodating portion at both ends of the container accommodating portion; A clamp part at the upper end opening of the container housing part;
The two axes are in a perpendicular relationship with each other, one axis is connected to the drive shaft via the arm, and the other axis is connected to the driven shaft via the arm,
A mixer characterized in that a rotation control means for controlling the number of rotations of the drive shaft controls at least one of acceleration and deceleration with respect to a drive source for rotating the drive shaft.   The mixer according to claim 1, wherein the drive source is a servo motor.   The rotation control means has an angle-rotation number table that defines a relationship between an angle in one rotation of the drive shaft and the rotation number of the drive shaft, and adjusts the rotation number of the servo motor based on the table. The blender described.   The mixer according to any one of claims 1 to 3, further comprising attachment / detachment means for fixing a part of the mixing container with a chuck portion so that the mixing container can be attached to and detached from the container housing portion.   Before the mixing container is attached to the container housing portion, the mixing container is rotated so that the end surface on the inlet side of the mixing container faces upward, and the mixing container is lowered to input the object to be mixed from the inlet. 4. The mixer according to 4.   5. The mixing according to claim 4, wherein after removing the mixing container from the container housing portion, the mixing container is lifted and rotated to discharge the mixture from the discharging port with the end surface on the discharging port side of the mixing container facing downward. Machine.   The detachable means is provided on the carriage, and either the mixing container before being attached to the container accommodating part or the mixing container after being detached from the container accommodating part can be conveyed by the carriage. Blender. A cover sensor for detecting the open / closed state of the cover covering the entire mixer;
A clamp sensor for detecting the lock state of the clamp part in the container housing part,
The mixer according to any one of claims 1 to 7, wherein a mixing operation is possible in a state where the cover is closed and a state where the clamp part is locked by the action of the clamp sensor and the cover sensor.   The mixer according to claim 8, wherein the clamp sensor is a transmission type sensor.   The mixer according to any one of claims 8 to 9, wherein a clamp sensor is installed on the cover.   A mixing method using the mixer according to any one of claims 1 to 10, wherein a mixing object is placed in a mixing container, and the mixing object is mixed by rocking and rotating the mixing container.