JP3899643B2 - Cylindrical screen classifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cylindrical screen classifier used in food, medicine, chemical industry and the like.
[Prior art]
[0002]
In a cylindrical screen classifier, powder particles that are raw materials such as chemicals are supplied to a raw material supply port, and the powder particles are fed into a mesh-like cylindrical screen via a screw and rotated while being stirred by a rotary stirring blade.
Then, the granular material rotates while being pressed against the mesh, and the fine powder in the granular material falls through the mesh to the fine powder outlet, and the coarse particles from the raw material outlet to the coarse particle outlet. Fall.
[0003]
In this way, the powder particles are classified. The powder particles adhere to the inner surface of the classifier during the classification. Therefore, when changing the raw material of the chemical to another type, in the case of so-called raw material change, if it is operated continuously as it is, the granular material before changing the raw material adhering to the inner surface will be mixed into the granular material after changing the raw material So there is a problem.
In addition, when the powder particles adhere to the inner surface of the classifier, bacteria and the like propagate and adhere to the powder particles being classified, which causes a sanitary problem.
[0004]
Therefore, in order to solve the above problem, conventionally, the net product case is removed from the net product case by using a tool, and further, the net product case is removed from the raw material supply case, and each case is cleaned or disinfected. It is. And after cleaning work etc. are complete | finished, each case is assembled again using a tool.
[0005]
[Problems to be solved by the invention]
In the conventional example, many screws are removed using a tool, and each element constituting the classifier is disassembled. Therefore, a lot of time is spent on the disassembling work.
Further, since the bearing case and the raw material supply case are integrally formed, it is difficult to clean the inner surface of the bearing case and the raw material supply case.
[0006]
Furthermore, when assembling the classifier, the operator lifts the net product case and screwes it while aligning with the raw material supply case, and further lifts the net product case and aligns it with the net product case. Since it must be screwed, it takes more labor and time than disassembly.
Thus, disassembling and assembling the classifier is troublesome and takes a lot of time and labor. As a result, the classifier's operation stop time becomes longer, and the operating rate of the classifier decreases. In particular, in raw materials that are frequently cleaned, the operating rate is significantly reduced.
[0007]
In order to solve this problem, the present inventor has invented Japanese Patent Application No. 2-168129. However, in the above-mentioned invention (Japanese Patent Application No. 2-168129), in the small machine, since each element constituting the machine, particularly each casing part, is light in weight, the object can be sufficiently achieved. Then, the weight of each element constituting the machine becomes heavy, and in particular, the raw material supply case and the net product case in each casing become large and heavy, which causes a problem in workability.
[0008]
In view of the above circumstances, an object of the present invention is to disassemble and assemble a large machine in a short time.
[0009]
[Means for Solving the Problems]
In this invention, on both sides of a bearing case for supporting a rotor with a rotary stirring blade and a rotary shaft with a raw material supply screw, two guide rods on the left and right parallel to the rotary shaft are slidably supported by slide bearings, and A stopper is provided at each end of the guide rod, and the raw material supply case, the net product case, and the net product case are sequentially inserted into the other free end of the guide rod, The guide rods are fixed to the penetrating portions (pipes) of the two guide rods with stopper pins, and the net product case is connected to the bearing case through the raw material supply case. the product case, more to screwing the net-on products case at each knob bolt, is intended to achieve the object.
[0010]
[Action]
When the respective tightening knob bolts are removed, the bearing case, the raw material supply case, the net product case, and the net product case are separated from each other and become separate bodies. In this state, in the raw material supply case and the net product case, the left and right guide rods slide in the axial direction in the bearings on both sides of the bearing case and move by the amount of sliding, and the raw material supply case is the guide rod It is possible to move up between the bearing case and the net product case, and the net product case can be pulled out to the free end side of the guide rod and detached from the classifier. After the work such as cleaning, the raw material supply case and the net product case are pressed against the bearing case, the net product case is inserted into the guide rod, and each case is tightened with a tightening screw such as a knob bolt. Fix it.
[0011]
【Example】
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. The same reference numerals have the same names and functions. A drive motor 4 that rotates the rotary shaft 3 is provided at one end of the bearing case 2 fixed to the support leg 1. One end of the rotating shaft 3 is supported on the bearing case 2. A sealing plate 3a, a screw 5, a rotor 70 with a rotating stirring blade 6 and a mounting disc 13 with a baffle plate 12 are fitted into the cantilevered rotating shaft 3 in this order from the base end side to the free end side. A bolt 60 for fastening is screwed to the tip.
[0012]
The rotary stirring blades 6 is attached to B over data 70, the rotor 70 has been freely fitted removably to the rotary shaft 3, the rotary stirring blades 6 with a twist angle of slightly with respect to the center line of the rotary shaft 3 Is provided.
[0013]
Two guide rods 8 parallel to the rotary shaft 3 are inserted into the support bearings 10 on both sides of the bearing case 2. One end of the guide rod 8 is provided with a stopper 11, and is supported by the bearings 10 on both sides of the bearing case 2 so as to be slidable in the axial direction, and the other end is a free end.
[0014]
The raw material supply case 15 is formed separately and independently from the bearing case 2, flanges 16 are provided at both ends thereof, and support pipes 17 through which the guide rods 8 are inserted are formed at both sides thereof. The net product case 20 is formed separately and independently from the raw material supply case 15, and an inspection lid 24 is provided at the upper part thereof, and a fine powder for discharging fine powder falling from the mesh of the cylindrical screen 25 is provided at the lower part thereof. A powder outlet 26 is provided.
[0015]
A flange 21 is provided at both ends of the net product case 20, and a support pipe 22 through which the guide rod 8 is inserted is attached to both sides of the flange 21, and the guide rod 8 is fixed with a stop pin 9. ing.
[0016]
The net product case 30 is formed separately from the net product case 20, and the support pipe 32 through which the guide rod 8 is inserted is attached to the flange 31 of the net product case 30. . A coarse grain outlet 34 for discharging coarse grains that do not pass through the mesh of the cylindrical screen 25 is provided at the bottom of the net product case 30.
[0017]
Next, the operation of this embodiment will be described. A tightening screw, for example, knob bolts 50 and 51 are rotated in a predetermined direction, and from the flange 21 of the net product case 20, the flange 16 of the raw material supply case 15, the flange 2a of the bearing case 2, and the flange 31 of the net product case 30 When removed, the net product case 30, the net product case 20, and the raw material supply case 15 are slidable independently. Therefore, the net product case 30 that is lighter than the others can be easily removed from the free end of the guide rod 8 by hand.
[0018]
In this state, the product case 30 on the net is extracted from the free end of the guide rod 8, and the bolt 60 is removed from the rotary shaft 3, and the mounting disc 13 with the baffle plate 12, the rotor 70 with the rotary stirring blade 6, the screw 5, etc. Remove from the rotating shaft 3 in order.
[0019]
Thereafter, when the guide rod 8 is slid in the support bearings 10 on both sides of the bearing case 2 and the stopper 11 is brought into contact with the bearing case 2, the guide rod 8 moves by the slide margin L. The raw material supply case 15 is slid on the guide rod 8 and moved to an optimal position between the bearing case 2 and the net product case 20 that is easy to work. Further, the seal plate 3 a is removed from the rotating shaft 3.
[0020]
If it does so, all the components which contact with a raw material will be removed from the bearing case 2, or a sufficient space will be opened and left | separated. In this state, the mounting disc 13 with the baffle plate 12, the rotor 70 with the rotary stirring blade 6, the screw 5, and the seal plate 3a are easily cleaned, and the cases 15, 20, and 30 are also separated independently. Easy to clean.
[0021]
Then, after the cleaning and disinfection work is completed, the material supply case 15 is moved by sliding on the guide rod 8 in the reverse manner to the above, and the guide rod 8 is slid in the support bearings 10 on both sides of the bearing case 2. The net product case 20 is moved to the bearing case 2 side, and the seal plate 3a, the screw 5, the rotor 70 with the rotary stirring blade 6 and the mounting disc 13 with the baffle plate 12 are fitted into the rotary shaft 3 in this order. Tighten with 60.
[0022]
Thereafter, the support pipe 32 of the net product case 30 is inserted into the free end of the guide rod 8, and the knob bolt 51 is screwed to the flange 21 of the net product case 20 through the flange 31.
Further, although the order is changed, the net product case 20 is pressed against the bearing case 2 through the raw material supply case 15, and after contacting the 20, 15, 2, the knob bolt 50 is attached to the flanges 2a, 16, Insert into 21 and rotate in the opposite direction to the above and clamp.
[0023]
As a result, the cases 2, 15, 20, and 30 are automatically aligned by the guide rod 8 to be integrated without being automatically aligned while being lifted by hand.
[0024]
【The invention's effect】
Since the cylindrical screen classifier according to the present invention is configured as described above, the clamping screw is removed, the net product case inserted in the guide rod is removed, and the raw material supply case and the net product case are guided. When pulled out together with the rod, each case is easily detached from the bearing case of the classifier, or separated by the sliding amount of the guide rod, and the rotating stirring blade and the rotating shaft are exposed. Therefore, it becomes easy to clean the rotary stirring blade and the rotary shaft, and each case that is removed or pulled out by the sliding amount of the guide rod can be easily cleaned.
[0025]
Also, when assembling each case, move the raw material supply case and the net product case together with the guide rod to the bearing case side, insert the net product case and tighten with the tightening screw, and each case will automatically center. As it is integrated, it can be assembled in a short time.
[0026]
Therefore, unlike the conventional example, each case is lifted by hand and does not have to be assembled while aligning the core, so that it is simple and labor-saving.
The present invention is particularly advantageous in the case of a large machine in which the raw material supply case and the net product case become large and heavy.
[0027]
That is, even with such a large machine, the disassembling and assembling work of the classifier becomes easier and the working time is shortened compared with the invention of the prior art (Japanese Patent Application No. 2-168129), so that cleaning and disinfection are possible. As a whole, the time required for this is shortened. Therefore, since the classifier stop time can be shortened, the operating rate is remarkably improved.
[0028]
In addition, when a knob nut or knob bolt is used, the classifier can be disassembled and assembled because no tools are used, so that the work time for cleaning and the like can be further shortened.
[0029]
Further, a seal plate, a screw, a rotor with a rotating stirring blade, and a mounting disc with a baffle plate are fitted onto the rotary shaft in order from the base end to the free end, and a tightening knob bolt is screwed onto the free end. By attaching and detaching the knob bolt, the attachment disk with baffle plate, the rotor with rotating stirring blades, the screw, and the seal plate that come into contact with the raw material can be easily attached to and detached from the rotating shaft. Therefore, the cleaning work can be performed more easily in a shorter time.
[Brief description of the drawings]
FIG. 1 is a front view of an overall view showing an embodiment of the present invention.
FIG. 2 is a left side view of an overall view showing an embodiment of the present invention.
3 is a cross-sectional view taken along line IV-IV in FIG.
4 is a cross-sectional view taken along line III-III in FIG.
FIG. 5 is a diagram showing a state at the time of disassembly of FIG. 1;
6 is a diagram showing a state after disassembly of FIG. 2; FIG.
[Explanation of symbols]
2 Bearing case 3 Rotating shaft 8 Guide rod 9 Stop pin 10 Guide rod sliding bearing 11 Stopper 15 Raw material supply case 20 Net product case 22 Guide rod support pipe 25 Cylindrical screen 30 Net product case 50 Knob bolt 51 Knob bolt

Claims (3)

This rotor is composed of a cylindrical screen having a large number of meshes and a plurality of rotating stirring blades that are attached to a rotating shaft on the center line of the screen and have a slight twist angle with respect to the center line. A cylindrical screen classifier in which a screw attached to a rotary shaft in parallel with each other screens powder raw material supplied from one end of the cylindrical screen and discharges coarse particles larger than the mesh of the cylindrical screen from the other end. In;
A rotating shaft is supported by an internal bearing, and a motor for driving the rotating shaft is attached to one end. A bearing case fixed on the gantry post and each end slides in the axial direction on both the left and right sides of the bearing case. A raw material supply case having two raw material rods supported on sliding bearings and provided with stoppers at the ends, a raw material charging port on the upper side, and a supply screw attached to the rotary shaft on the inner side,
A cylindrical screen is detachably supported on the inner side, the rotor having a plurality of stirring blades is provided inside the cylindrical screen, and a fine powder outlet for taking out fine powder smaller than the mesh of the cylindrical screen is provided at the lower part. And a net product case having an inspection lid for inspecting the inside at the top,
A net product case having a coarse grain outlet larger than the mesh of the cylindrical screen at the lower end at the outlet end of the cylindrical screen;
Are inserted in sequence, the net product case is fixed to this bearing case via the raw material supply case with the left and right knob bolts of the bearing case, and this is fixed to the net product case with the left and right knob bolts of the net product case,
Cylindrical screen classifier characterized by fixing guide rods with stopper pins to the left and right guide rod penetrations on both sides of the net product case. A sealing plate, a screw, a rotor with a rotating stirring blade, and a mounting disc with a baffle plate are fitted into the rotating shaft sequentially from the base end to the free end,
2. The cylindrical screen classifier according to claim 1, wherein a tightening knob bolt is screwed to the free end. The cylindrical screen classifier according to claim 1 or 2, wherein a stopper is connected to the ends of the two left and right guide rods provided at the end of the bearing case.

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