JPH0612822Y2 - Sanitary type kneader - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a sanitary type kneading machine, and in particular, a shaft sealant and a can sealant are integrally and removably attached to a sealant support member. The present invention relates to a sanitary-type kneader having a stirring mechanism, a stirring arm, and a stirring blade supported at the tip of the stirring arm, and having a stirring blade detachable from a stirring shaft.

(Prior Art) A kneader for stirring and mixing foods and chemicals must be kept clean. This requires that the structure be constructed so that it can be thoroughly and easily cleaned after use.

For example, Japanese Unexamined Patent Publication No. 56-108521 discloses a sealing mechanism for preventing a kneaded material such as rubber or plastic from leaking from a kneader container. In this sealing mechanism, a cylindrical rubber packing is fitted into a hole for penetrating a stirring shaft provided on the wall surface of the kneading container in a liquid-tight manner in the hole, and the rear end surface of the cylindrical packing is pressed to the front of the packing by a packing pressing material. This is a mechanism in which the front end face is slidably contacted with the wall surface of the stirring blade to seal between the hole and the wall surface of the stirring blade. Since this sealing mechanism is intended only to prevent the material to be kneaded from leaking, only the sealing property of the packing is considered. This sealing mechanism is targeted at substances that are not related to foods or chemicals, such as rubber and plastics as the materials to be kneaded, which are essential to keep the sealing member clean at all times because of fear of the generation of microorganisms. No consideration is given to the ease of attachment / detachment of the seal member in consideration of the breeding of. In this mechanism,
Since it is troublesome to remove the packing, it is difficult to always maintain the cleanliness of the seal portion in the actual cleaning work. Therefore, if this is diverted to a sealing mechanism for foods and medicines, the foods and medicines will be contaminated by microorganisms and the value as a product will be impaired.

Japanese Utility Model Publication No. 50-43795 discloses a sealing mechanism for a concrete mixer. This sealing mechanism also targets concrete, which is a substance such as food and chemicals that does not cause microbial contamination, so it has excellent sealing properties, but it can be attached to and detached from a sealing material that considers the microscopic world of microbial contamination. No ingenuity has been made regarding the acceptability of.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and an object thereof is to provide a kneader having a structure capable of being completely and easily cleaned. Another object of the present invention is to provide a kneading machine which can be completely and easily cleaned because the sealing portion between the kneading can body and the stirring shaft, which is most easily polluted, can be easily removed. Still another object of the present invention is to provide a kneader in which the stirring blade can be easily removed from the stirring arm and the stirring arm can be easily removed from the stirring shaft, so that cleaning can be completed completely and easily. .

(Means for Solving Problems) The sanitary type kneader of the present invention includes a kneading can body, a can body supporting member for rotatably supporting the can body, a stirring shaft driving means, and a driving means. It has a stirring shaft that is connected and rotates a stirring blade in the can body, and a sealing mechanism that seals the stirring shaft and the stirring shaft penetrating portion of the can body, and the sealing mechanism is removable from the stirring shaft. And a fixed ring fixed to the stirring shaft in a state where the sealing material supporting member is pressed against the can body, and the sealing material supporting member includes:
A shaft sealing material that seals between the stirring shaft and the sealing material supporting member while slidingly contacting the stirring shaft, and seals between the sealing material supporting member and the can body while slidingly contacting the can body surface. A sealant for a can body is integrally and removably attached to the seal member support member, and the fixed ring is released from the agitation shaft, so that the seal material for the shaft and the seal material for the can body are removed. The stirring blade has a stirring arm and a stirring blade supported at the tip of the stirring arm, and the stirring blade is provided at the base of the stirring arm. It is detachably attached to the stirring shaft via the stirring shaft holding portion, and thereby the above-mentioned object is achieved.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

The sanitary type kneader of the present invention, as shown in FIG.
It has a kneading can 1 and a stirring shaft 2. The can body 1 is, for example, horizontally long and has a substantially U-shaped cross section, or as shown in FIG. 2, it is spherical and has a substantially U-shaped drawing. The stirring shaft 2 penetrates the can body 1 and is connected to a stirring shaft drive means (not shown) through a bearing 23. The stirring blade 3 is fixed to the stirring shaft 2 in the can body 1 via the stirring arm 31, and is rotated together with the stirring shaft 2 by the driving of the stirring shaft driving means. The can body 1 is rotatably supported by a can body supporting member 10. The can body supporting member 10 does not have to be a special one, but may be any one that has a function of supporting the can body 1 and allowing the can body 1 to rotate about the shaft 2. The can body supporting member 10 is, for example, a can body side cylinder 11 extending along at least one side of the can body 1 along a shaft 2, and a bearing 12 and a side cylinder rotatably supporting the can body side cylinder 11. It has a tumbling gear 13 fixed to or engaged with 11. The tumbling gear 13 is driven by tumbling gear driving means 14 such as a motor. The can body supporting member 10 is provided separately from the stirring shaft 2. The stirring shaft penetrating portion 20 of the can body 1 and the stirring shaft 2 are watertightly sealed by the sealing mechanism 4.

As shown in FIGS. 3 (a) and 3 (b), the sealing mechanism 4 has a sealing material support member 41 and a fixed ring 45 for pressing the sealing material support member 41 against the can body 1. The sealing material support member 41 is
It is composed of a plurality of members such as the upper half member and the lower half member so as to wrap the stirring shaft 2 around it. Then, it is slidably and detachably locked around the stirring shaft 2 through a ring-shaped shaft sealing material 42 made of neoprene rubber, silicone rubber or the like by a locking member such as screw means 43. There is. The shaft seal material 42 is fixed to a portion of the seal material support member 41 facing the stirring shaft by means such as baking. The seal member support member 41 further has a ring-shaped seal member 44 made of neoprene rubber or silicon rubber. The sealing material 44 seals the stirring shaft penetrating portion 20 of the can body 1, and is, for example, an annular groove 440 provided on the surface of the sealing material supporting member 41 facing the can body penetrating portion 20.
It is detachably supported. This can seal material 44
Has at least one cut 400 at an appropriate location to facilitate its attachment and detachment. In this way, the shaft seal material 42 and the can body seal material 44 are integrally and detachably attached to the seal support member 41 to form a unit. The seal member support member 41 and the stirring shaft 2 are watertightly sealed by the shaft seal member 42. At the same time, the sealing material support member 41 and the penetrating portion 20 of the can body 1 are
41 is pressed against the can body 1 by a fixing member such as a fixing ring 45, and is therefore watertightly sealed by the can body sealant 44. As a result, the stirring shaft 2 and the can body 1 are sealed in a watertight manner by the sealing mechanism 4. Moreover, the seal member support member 41 is slidable in the axial direction with respect to the stirring shaft 2 via the shaft sealing member 42, but when mounted on the stirring shaft 2, it rotates together with the stirring shaft 2. Therefore, the shaft sealant 42
Has no risk of wear. On the other hand, the can sealant 44
Are worn by sliding on the can 1. Then, due to this wear, the sealing material 44 is replaced. The seal member support member 41 constituting the seal mechanism 4 is removed from the stirring shaft 2 by unfastening the screw means 43. In this way, the sealing members 42 and 43 and the sealing member supporting member that supports the sealing members 42 and 43
The unit composed of 41 is released from the can body 1 only by releasing the fixed ring 45. The can seal member 44 can be easily removed from the removed seal member support member 41 by using the cut portion 400.

When the seal member support member 41 is removed from the stirring shaft 2, the shaft seal member 42 fixed to the seal member support member 41 is removed.
The sealing surface of is exposed. Therefore, the sealing surface is easily cleaned.

The fixed ring 45 is a member fixed to the stirring shaft 2 with a screw 450 as shown in FIG. 3 (a) and (b) or (c), and has a function of pressing the seal member support member 41 against the can body 1. There is no particular limitation on the shape and mechanism of the above as long as it has

Even if the combined seal material 46 in which the shaft seal material 42 and the can body seal material 44 are integrated is used, the stirring shaft 2 and the can body 1 can be sealed in a watertight manner in the same manner. For example, as shown in FIGS. 6 (a) and 6 (b), the combined seal material 46 is attached to the can body support member 10 by the flange-shaped seal material support member 41 through the stirring shaft 2. The combined sealing material 46 has at least one cut portion at an appropriate position for easy attachment / detachment. Usually, two sheets are used in a stack. A coil spring 460 is provided on the outer peripheral portion of the coil spring 460 so as to be in close contact with the shaft.
The sealing material support member 41 presses the sealing material 46 against the can body 1 with the screws 43 or the like via the pressing plates 410 and 411 to bring them into close contact with each other. The support member 41 can also be divided into upper and lower parts for easy attachment and detachment. The ring 46 determines whether the sealing material 46 can slide on the shaft 2 or the can body 1.
It depends on the degree to which 0 and the screw 43 are fastened to the seal member 46.

The stirring blade 3 attached to the stirring shaft 2 has a stirring arm 31 and a stirring blade 32. This stirring blade 3 is equipped with a stirring arm 31
It is removably attached to the shaft 2 via a stirring shaft holding portion 311 provided at the base of the. The stirring shaft holding portion 311 engages with the shaft 2 so as to sandwich the shaft 2. The pinching portion 311 is fixed to the shaft 2 by a pin 312 in order to make this engagement stronger. In order that the sandwiching portion 311 can be more firmly fixed to the stirring shaft 2, at least the sandwiching portion corresponding portion of the stirring shaft 2 preferably has a rectangular cross section, for example, a hexagonal prism.

The stirring blade 3 which is mainly useful when the inner wall of the can body 1 is flat
Is shown in FIGS. 4 (a) and 4 (b). The stirring blade 32 is a stirring arm
The blade support plate 33 is detachably connected to the blade 31, and the blade 34 is detachably supported by the blade support plate 33. Stirring arm 31
Supports a tube 313 at its tip. The tube 313 is provided with a notch 314 in the axial direction. The blade support plate 33 has a columnar base 331 and a holding portion 332 having a substantially U-shaped cross section, and the holding portion 332 holds the blade 34. The blade supporting plate 33 is coupled to the stirring arm 31 such that the columnar base 331 is fitted into the cylinder 313 at the tip of the stirring arm and the sandwiching portion 332 projects outward from the cylinder 313 via the notch 314. Therefore, the blade support plate 33 is prevented from sliding in the direction away from the tube 313. The blade 34 is fitted into the holding portion 332 and held by the holding portion 332, and an engaging portion provided in parallel with the tube 313, such as the protrusion 3
By 33, sliding in the direction away from the cylinder 313 is prevented.

Further, an engaging portion, for example, an engaging concave portion 310 having a predetermined width and an engaging protrusion 315 at the center thereof are provided near the tip of the stirring arm 31, and a notch portion having a predetermined width near the center of the blade holding portion 332. 330 is provided. Further, a concave portion 340 is provided at a position where the blade 34 is aligned with the holding portion cutout portion 330. Therefore, the blade support plate 33 is fitted to the stirring arm 31, and the blade 34 is fitted to the blade gripping portion 332.
Next, the pressing spring plate 35 is engaged at one end with the stirring arm 31 via the engaging recess 310 and the engaging projection 315 at the tip of the stirring arm, and at the other end with the recess 340 through the sandwiching portion notch 330. By mounting the blade 34 on the stirring arm 31 so as to press the blade 34 in the rotation direction, sliding of the blade support plate 33, the blade 34, and the cylinder 313 in the direction along the cylinder 313 can be prevented. At the same time, the spring plate 35 causes the blade 34 to contact the inner wall of the can body 1 with an appropriate pressing force.

The cutout 314 of the stirring arm cylinder 313 is cut out wider than the plate thickness of one piece 334 of the sandwiching portion 332 fitted into the cutout 314. Therefore, the blade 34 can slide on the inner wall of the can body 1 with an appropriate pressing force by the spring pressure of the leaf spring 35.

The stirring blades 3 which are mainly useful when the inner wall of the can body 1 is curved are shown in FIGS. 5 (a) and 5 (b). The stirring blade 32 is a blade 36
And a blade support plate (pressing plate) 37 for detachably fixing the blade 36 to the stirring arm 31. Blade 36
The tip of the tooth has a curvature substantially equal to the sliding surface of the can body. Holding plate
37 has a substantially L-shaped cross section, one of which is a blade
36 is pressed against the stirring arm 31 via a spring material 360 such as rubber, and the blade 36 is pressed against the sliding surface of the can body via the spring material 360 with the other piece. The end of the pressing plate 37 is locked to the stirring arm 31 by an engaging portion 317 provided near the base of the stirring arm 31 and an engaging portion 318 near the tip end thereof. The engaging portion 318 of the arm 31 is, for example, a locking piece for locking the front end surface of the pressing plate 37 and a notch hole for receiving the projection near the front end surface of the pressing plate. The notch hole is provided so as to be appropriately inclined with respect to the pressing direction of the pressing plate 37 so that the pressing plate 37 can always press the blade 36 forward while countering the spring force of the blade spring member 360. blade
In order to fix the stirring arm 36 at a predetermined position on the stirring arm 31, a locking portion for directly locking the blade 36 to the arm 31, for example, a protrusion 361 can be provided on the arm 31.

Since all the surfaces of the stirring blades 3 described above are made smoothly, there is no risk of stagnant residue of the material to be stirred which causes generation of microorganisms. In addition, all the members are removable, the members such as bolts and nuts are not used as much as possible, and the joints are mainly welded. Therefore, cleaning of each part can be done completely and significantly easier.

(Effects of the Invention) The sanitary-type kneader of the present invention is thus fixed to the stirring shaft while the sealing material supporting member detachably attached to the stirring shaft and the sealing material supporting member are pressed against the can body. A sealing ring for sealing the space between the stirring shaft and the sealing material supporting member while slidingly contacting the sealing material supporting member, and the sealing material supporting member and the can while slidingly contacting the can body surface. When the fixed ring is released from the agitation shaft, the shaft sealant and the can sealant are integrated with the can sealer that seals between the body and the can. While it can be removed integrally with the seal member support member, it is equipped with a stirring blade having a stirring arm and a stirring blade supported at its tip, and the stirring blade is mounted via a stirring shaft holding part provided at the base of the stirring arm. Detachable attachment to the stirring shaft First, the seal portion between the kneading can body and the stirring shaft, which is most susceptible to contamination, can be easily removed. Therefore, the sealing part can be easily and surely cleaned.

Secondly, since the stirring blade is attachable to and detachable from the stirring shaft, the stirring blade can be easily removed during cleaning. Therefore, the stirring blade having the stirring arm and the stirring blade can be cleaned easily and reliably.

For this reason, in the sanitary-type kneading machine of the present invention, the portion requiring cleaning can be easily removed at the time of cleaning, so that the kneading machine as a whole can be cleaned easily and reliably. Therefore, according to the present invention, it is necessary to maintain a clean state at all times, and it is possible to realize an excellent kneader for stirring and mixing foods and chemicals.

[Brief description of drawings]

FIG. 1 is a partial sectional front view showing an example of the kneading machine of the present invention,
FIG. 2 is a sectional side view of a spherical can body of an example of the present invention, and FIGS. 3 (a) and 3 (b) are sectional side views and exploded views of an example of a sealing mechanism 4 of the present invention, respectively. Figure (c) is a front sectional view of a fixed ring, Figures 4 (a) and (b) are perspective and exploded views showing an example of a stirring blade, respectively, and Figures 5 (a) and (b) are a stirring blade respectively. It is a perspective view and an exploded view showing another example of No. 3. 6 (a) and 6 (b) are respectively a sectional side view and an exploded view showing an example of the sealing mechanism 4 of the present invention. 1 …… can body, 2 …… stirring shaft, 3 …… stirring blade, 4 …… sealing mechanism, 10 …… can body supporting member, 11 …… side cylinder, 12 …… bearing, 13 …… inversion gear, 20 …… Agitation shaft penetrating part, 31 …… Agitation arm, 32 …… Agitation blade, 33 …… Blade support plate, 34,
36 …… Blade, 35 …… Spring plate, 37 …… Pressing plate, 41…
… Seal material support member, 42,44 …… Seal material, 43 …… Screw means, 45 …… Fixed ring, 311 …… Stirring shaft holding part.

Claims (6)

[Scope of utility model registration request] 1. A kneading can body, a can body supporting member for rotatably supporting the can body, a stirring shaft driving means, and a stirring shaft which is connected to the driving means and rotates a stirring blade in the can body. A sealing mechanism that seals the stirring shaft and the stirring shaft penetrating portion of the can body, and the sealing mechanism is a sealing material support member detachably attached to the stirring shaft, and the sealing material support. A fixed ring fixed to the stirring shaft in a state where the member is pressed against the can body, and the sealing material supporting member is provided between the stirring shaft and the sealing material supporting member while slidingly contacting the stirring shaft. A shaft sealing material that seals the can, and a can body sealing material that seals between the sealing material support member and the can body while being in sliding contact with the can body surface are integral with and removable from the sealing material support member. Mounted on the shaft, and by releasing the fixed ring from the stirring shaft, The body sealing material can be removed integrally with the sealing material supporting member, while the stirring blade has a stirring arm and a stirring blade supported at the tip of the stirring arm. A sanitary-type kneader detachably attached to a stirring shaft via a stirring shaft holding portion provided at the base of the arm. 2. The kneading machine according to claim 1, wherein the sealing material supporting member comprises a plurality of members so as to wrap the stirring shaft from the periphery thereof. 3. The utility model registration claim according to claim 2, wherein the shaft sealing material or the can sealing material is a ring-shaped sealing material that has at least one cut portion and can be detachably attached to a sealing material supporting member. The kneading machine according to item. 4. The kneading machine according to claim 2, wherein the shaft sealing material or the can sealing material is baked and fixed on the supporting member. 5. The kneading machine according to claim 1, wherein the stirring blade is detachably fixed to the stirring arm by a blade supporting plate so as to be detachable from the utility model. 6. The kneading machine according to claim 1, wherein at least a portion of the stirring shaft corresponding to the stirring shaft holding portion is a prismatic shape.