JPS627378Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous slendering machine that has a compact structure and is capable of extremely efficiently performing summing operations by shearing action and compression action.

Conventionally, colloidal emulsions could be mixed and dispersed only using batch-type roll mills, sand mills, kneaders, etc., and mixing and dispersion could not be performed effectively using known continuous mills. . For example, when manufacturing a rubber adhesive, the rubber base is made into chips, swollen with a solvent, turned into a colloid, the solvent is added again, and the temperature is controlled over a long period of time. Mixing, wetting, and dispersion are performed using a batch kneader. Such batch-type processing machines have the disadvantage that not only the processing capacity is low, but also the quality of the products varies from lot to lot.

〓The mixing operation is carried out by the flow caused by strong shearing and compression effects, but when such rubber melting operation of adhesive is performed with a kneader, colloidal matter and liquid are mixed due to the structure of the blade and mixing tank. The current situation is that the summation effect deteriorates and it takes a long time to complete the summation as they slide into each other.

Therefore, when this operation is performed with a homomixer, a strong shearing effect is applied to the colloidal material, but
On the other hand, since the compression effect is weak, the resulting product has poor elongation because the rubber particles are not completely dissolved in the solvent, but are scattered in the solvent. When this was rolled into an adhesive tape using a roll coater, it spread more poorly than a product obtained using a kneader, indicating that sufficient processing had not been carried out.

This idea was made to solve these conventional problems, and it makes it possible to perform the summing operation like that in conventional batch kneaders and roll kneaders, regardless of the particle size of the kneaded materials or whether they are solids or liquids. The purpose of the present invention is to provide a device that can perform continuous shearing and compression with a compact structure.

This idea involves attaching a plurality of rotating disks at predetermined intervals in the axial direction to a rotating shaft that has a screw formed on its outer periphery so that it rotates within a cylinder and transfers fluid in the axial direction. On both sides of the plate, a plurality of ridges in which the axially protruding parts are continuous up to the outer circumferential end are formed substantially in the radial direction, and fixed disks are provided coaxially on the cylinder so as to face both sides, A plurality of the above-mentioned peaks are also formed on the side surface of the fixed disk in the almost radial direction, so that the material fed between the rotating disk and the fixed disk from between the rotating shaft and the inner surface of the cylinder can be applied to the rotating disk. so that it passes through the outer circumferential surface and is sent to the center between the rotating disk and fixed disk on the opposite side.
The opposing peaks of the fixed disk and rotating disk are formed so as to be inclined to each other, and a screw is formed on the outer circumferential surface of the rotating disk, and a screw is formed on the inner surface of the cylinder between the fixed disks facing this outer circumferential surface. A groove is formed in the axial direction.

Embodiments of this invention will be described below with reference to the drawings. In FIG. 1, 1 is a hopper, 1a is a quantitative feeder, 1c is a material supply port, and 4 is a cylinder. A rotary shaft 31 rotated by the drive device 2 is inserted into the cylinder 4, and a screw is formed on this rotary shaft 31 up to the distal end. An extruded portion X is formed by the screw 59. Furthermore, rotating disks 9, 11, and 15 are mounted at predetermined intervals between them, and a wide rotating disk 13 is arranged between them. A kneading section K ₁ is formed by the rotating disks 9 and 11, a kneading section K ₂ is formed by the rotating disk 15, and a vent section V is formed by the rotating disk 13. A screw 10 is formed on the shaft between these rotating disks.

Between the cylinder 4 at the base and the cylinder 30 at the tip are annular members 17, 20, 26 corresponding to the rotating disks 9, 11, 15, annular members 18, 21, 25 arranged between them, and a vent. The cylinders 4 and 30 are overlapped with the annular member 22 having the hole 12.
and are connected by a tie rod 24. Further, a heater 5 is arranged on the outer peripheral surface of the cylinder.
A groove 8 continuous in the axial direction is provided in the upper part of the inside of the cylinder 4.
As shown in FIG. 2, the end thereof is inserted into a vent hole 7 that opens to the outside.

As shown in FIG. 3, the rotating disk 11 has a plurality of protrusions 32 formed in the circumferential direction on the side surface thereof, extending radially from the center. This protrusion 32 is the rotary disk 1
The portions protruding in the axial direction on both side surfaces of the protrusion 1 are formed by convex portions that continue to the outer peripheral end, and a recess 43 is formed between the protrusions 32 . This configuration includes the opposite side of the rotating disk and the rotating disk 9,1.
The same applies to both sides of numbers 3 and 15. The outer peripheral end of the protrusion 32 protrudes from the outer peripheral surface of the rotary disk and extends spirally in the axial direction to form a screw on the outer peripheral surface of the rotary disk. Further, on the surface facing the side surface of the rotating disk, projections (mountains) and recesses (valleys) similar to those of the annular members 18, 21, 25, and 28 are formed to constitute a fixed disk. The protrusions of the fixed disk are slightly inclined from the radial direction, and the inclination direction is such that on the inlet side of the device, the phase lags behind the rotation direction toward the outer periphery, and in the opposite direction on the outlet side. The material is fed from the gap between the screw and the cylinder to the outer circumferential direction through between the rotating disk and the fixed disk, and after passing over the outer circumferential surface of the rotating disk, it is fixed to the opposite surface of the rotating disk. It is designed to be sent toward the center between the disk and the disk. In other words, the protrusions 32 on the rotating disk and the protrusions on the stationary disk are each formed substantially in the radial direction, but at least one of the opposing protrusions is formed at a slight angle from the radial direction so as to intersect with each other. has been done. To explain this in detail with reference to the drawings, in FIG.
The fixed disk facing one side of the rotating circle has a projection (mountain portion) 80 formed on the opposite surface thereof, which is arranged to be inclined with respect to the projection (mountain portion) 32 as shown by the imaginary line. When the plate 11 rotates in the direction of the arrow shown in the figure, the protrusions 32 and 80 gradually overlap from the center side, and the material between the protrusions 32 and 80 is therefore extruded toward the outer circumference. . On the other hand, on the opposite side of the rotary disk 11, as shown in FIG. Both protrusions 32 and 80 gradually approach each other from the outer circumferential side toward the center, so that the material between both protrusions 32 and 80 is fed from the outer circumferential side toward the center.
Further, a plurality of grooves 49 extending in the axial direction are formed in the inner peripheral surface of the annular members 17, 20, 26 in the circumferential direction.
By facing the outer circumferential surface of the rotating disk, the protrusions and recesses alternately face each other, similar to the relationship between the rotating disk and the fixed disk. The outer circumferential surface of the rotating disk 13 and the inner circumferential surface of the annular member 22 are similarly configured, and the protrusion 3
The screw flight formed at the outer circumferential end of 2 and the axial groove 23 face each other.

Next, the operation of this device will be explained. First, the rotating shaft 31 is rotated by the drive device 2, and the quantitative feeder 1a is operated to feed the material in the hopper 1 into the cylinder 4 in fixed amounts. Since the inside of the cylinder 4 is heated by the heater 5, the supplied material 6 is sent toward the rotating disk 9 while being dried. Gas generated during this time is discharged from the groove 8 through the vent hole 7. The material that has reached the base of the rotating disk 9 is conveyed in the outer circumferential direction by the relative motion of the opposing surfaces of the rotating disk and the fixed disk, and is subjected to compression and shearing effects.
That is, as shown in FIGS. 5 and 6, the part where the peaks 43 and 39 face each other is wide, the part where the valley 43 and the peak 29 face each other is slightly narrower, and the part where the valleys 43 and 39 face each other is slightly narrower.
A very small gap is formed in the portion where the ridge 32 and the crest 32 face each other. Therefore, when the rotating disk moves in the direction of arrow R, the distance L between the respective boundary lines 41 and 42 increases.
As a result, the material inside is subjected to strong compression. The material subjected to compression is valley 43 and peak 2.
9, where it is subjected to a strong shearing action between the peaks 32 and 29. Such an action is performed in the same manner in the circumferential direction, that is, the compression process P and the shearing process S are alternately repeated in the circumferential direction. On the other hand, looking at the radial direction of the disk, the ridges 29 of the fixed disk are inclined from the radial direction, and the ridges 29 and 32 gradually face each other from the center toward the outer periphery, so that the material At the same time as applying a circumferential force, a radial force is also applied, and the material is sent out in the circumferential direction. At the outer periphery, as described above, the screw flight formed by the extension of the protrusion 32 and the groove 49 are opposed to each other, so here too, the material is subjected to shearing and It is sent under compression. On the opposite side of the rotating disk, compression and shearing are repeated in the same manner as shown in FIGS. 5 and 6, and the peaks of the stationary disk are inclined so that the material is sent toward the center. The material that has reached the screw 10 is sheared and compressed in the same manner as described above due to the action of the axial groove 19 formed on the inner circumferential surface of the annular member 18 and the screw flight, and then continues in the next rotational circle. It is sent to the plate 11, and the same action is performed thereafter.

Even during the kneading action, moisture contained in the material is gasified, but this gas is discharged from the vent hole while passing through the outer circumference of the rotating disk 13. Since the rotating disk 13 is set to have a wider width in the axial direction than the rotating disks 9 and 11, the volume of the material passage becomes larger, and therefore gas can be easily discharged.

The material from which the gas has been completely removed after passing through the rotating disk 13 is subjected to finishing kneading by passing through the rotating disk 15, and is extruded from the tip.

As explained above, this device is designed so that strong shearing and compression are performed on the entire opposing surfaces of the rotating disk and the stationary disk, and the transfer is performed while shearing and compression are also occurring between these opposing surfaces. Therefore, it is possible to perform an effective summation effect with a very compact configuration. The number of rotating disks to be installed may be determined as appropriate depending on the type of material to be kneaded, and the shapes of the peaks and troughs and the number of stages of the rotating disks and fixed disks may be changed in various ways as long as the above-mentioned effects are achieved. It is possible.

[Brief explanation of the drawing]

Fig. 1 is a central vertical sectional view showing an embodiment of this invention, and Figs. 2 to 4 are the - line in Fig. 1, respectively.
- line, - line sectional view, Figure 5 is a sum process diagram,
FIG. 6 is a summation mechanism diagram. FIGS. 7 and 8 are explanatory diagrams for explaining the flow of material between the rotating disk and the stationary disk, respectively. 3...Screw, 4,30...Cylinder,
9, 11, 13, 15... Rotating disk, 17, 1
8, 20, 21, 22, 25, 26, 28... annular member, 29, 32... protrusion, 39, 43... recess, 23, 49... groove.

Claims (1)

[Scope of utility model registration request] A plurality of rotating disks are attached at predetermined intervals in the axial direction to a rotating shaft that has a screw formed on the outer periphery so as to rotate within the cylinder and transfer fluid in the axial direction. In the cylinder, a plurality of ridges are formed in which the axially protruding portions are continuous up to the outer circumferential end, and fixed disks are provided coaxially on the cylinder so as to face both sides of the ridges, and the fixed disks are A plurality of the above-mentioned peaks are formed on the side surface of the cylinder in a substantially radial direction, so that the material fed between the rotating disk and the fixed disk from between the rotating shaft and the inner surface of the cylinder passes through the outer peripheral surface of the rotating disk. The facing peaks of the fixed disk and the rotating disk are formed so as to be inclined to each other so that the material is fed to the center between the rotating disk and the fixed disk on the opposite side. A continuous smoothing machine characterized in that a screw is formed on the outer circumferential surface and a groove is formed in the axial direction on the inner surface of the cylinder between fixed disks facing the outer circumferential surface.