JP4333824B2 - Kneading material kneading equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kneading material reversing device such as a rubber material. More specifically, when repeatedly kneading the kneaded material discharged from the kneading roll, the kneading material is widened on the return conveyor. The present invention relates to a kneading material rewinding device that facilitates material winding and squeezing.
[0002]
[Prior art]
Conventionally, a kneading material is repeatedly kneaded by a pair of kneading rolls in order to disperse chemicals and the like in a kneaded material such as a rubber material to make the physical properties constant.
[0003]
By the way, the above-described refining apparatus is provided with a material leveling apparatus in order to efficiently remix the kneaded material, and various types of material leveling apparatuses have been conventionally proposed. ing. For example, as shown in FIG. 6, a pinch roll 2a is disposed at the lower end on the front side of the return conveyor 1, and the sheet-like material W returning to the pair of kneading rolls 3a and 3b is squeezed, or the kneading roll 3a, A method of squeezing the sheet-like material W by arranging a pinch roll 2b at a transfer portion X between the carry-out conveyor 4 and the reverse conveyor 5 installed horizontally at the lower part of 3b is performed.
[0004]
[Problems to be solved by the invention]
However, in the method in which the pinch roll 2a is disposed at the lower end on the front side of the return conveyor 1 as described above, there is a limit to the amount of drawing of the sheet-like material W. When the angle becomes too steep and the sheet-like material W does not bite into the kneading rolls 3a and 3b, there is a problem that the pinch roll 2a is wound.
[0005]
In addition, in order to improve the chemical dispersibility, the pinch roll 2b is disposed at the transfer portion X between the carry-out conveyor 4 and the reversing conveyor 5, and the squeezing position of the sheet material W is immediately after the kneading rolls 3a and 3b. Thus, there is a problem that the cooling efficiency of the sheet-like material W is lowered. Further, each method has a problem that the edge of the sheet-like material W is caught by the pinch rolls 2a or 2b and troubles occur.
[0006]
The object of the present invention is to allow the kneaded material to be forcibly rolled up and squeezed in the upper part of the carry-out side of the return conveyor, to limit the squeezing amount of the kneaded material, and to improve the chemical dispersibility as a refining device. An object of the present invention is to provide a kneading material refining device that is capable of performing efficient kneading without impairing the cooling efficiency of the kneading material.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a carry-out conveyor disposed below the pair of left and right kneading rolls and a return conveyor disposed above the kneading roll. In a kneading material kneading device that is kneaded with a kneading roll and dropped onto the carry-out conveyor and then returned again to the return conveyor and repeatedly kneaded, on the carry-out side upper part of the return conveyor A pair of width-shifting drive rolls that are movable in a direction orthogonal to the advancing direction of the return conveyor and that are capable of moving toward and away from each other, and forming the pair of width-shifting drive rolls in a substantially drum shape in cross section, The roll axis center line is inclined rearward with respect to the moving direction of the conveyor, and the roll axis center line is perpendicular to the horizontal upper surface of the return conveyor. Inclination angle 10 ° or more with respect, it is an Abstract that is set to a range of than 50 °.
[0008]
In the kneading material kneading apparatus, the pair of width-shifting driving rolls roll up the kneading material at the upper part on the carry-out side of the return conveyor and narrow down in the width direction .
[0009]
In addition, a gap is provided between the tip of the pair of width-shifting drive rolls and the upper surface of the return conveyor, and this gap is set to a gap that is narrower than the thickness of the material to be width-shifted. The speed is set faster than the surface speed of the return conveyor.
[0010]
The present invention is configured as described above, and a pair of width-adjusting drive rolls that are movable in a direction orthogonal to the moving direction of the conveyor and that are close to and away from each other are arranged on the carry-out side of the return conveyor. The width-shifting drive roll is formed in a substantially drum shape in cross section, and the kneading material is installed at the upper part on the carry-out side of the return conveyor by installing the center line of the roll axis inclined backward with respect to the traveling direction of the conveyor. By forcibly winding up and narrowing down, the limit of the amount of the kneaded material to be squeezed is high, and it becomes possible to improve the chemical dispersibility as a refining device.
[0011]
Also, since the kneading material is squeezed on the return conveyor in front of the kneading roll, the cooling efficiency of the sheet-like material is less likely to be lost, and the sheet-like kneading is performed by the widthwise driving roll having a substantially drum-shaped cross section. Since the material winding and drawing operations are performed, there is no trouble that the sheet-like edge of the kneaded material is caught, and an efficient operation can be performed.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic front view of a kneading material kneading device embodying the present invention, FIG. 2 is a plan view of FIG. 1, and the kneading device 10 is a pair of left and right kneading rolls that can be approached and separated. A return conveyor 12 for introducing the kneaded material Wx between the kneading rolls 11a and 11b is installed on the lavers 11a and 11b, and a carry-out conveyor 13 is installed horizontally below the kneading rolls 11a and 11b. ing.
[0013]
A reversing conveyor 14 for inverting the kneaded material Wx is installed between the carry-out conveyor 13 and the return conveyor 12 so that the kneaded material Wx is repeatedly returned.
[0014]
A pair of width-adjusting drive rolls 15a and 15b that can move in a direction orthogonal to the direction of travel of the return conveyor 12 (the direction of the arrow Z) and that can move toward and away from each other are disposed above the front end side of the return conveyor 12. ing.
[0015]
As shown in FIG. 3, the pair of width-shifting drive rolls 15 a and 15 b are formed in a substantially drum shape in cross section, and the inclination angle α of the center line S of the roll shaft 16 is perpendicular to the horizontal upper surface of the return conveyor 12. Is set to a range of 10 ° or more and 50 ° or less.
[0016]
When the inclination angle α of the center line S of the roll shaft 16 is 10 ° or less, the winding efficiency of the kneaded material Wx is poor, and when it is 50 ° or more, it is easy to wind the drive rolls 15a and 15b. appear.
[0017]
Further, a gap h that is narrower than the thickness of the kneaded material Wx to be widened, for example, about 1 to 8 mm, between the front ends of the pair of widthwise driving rolls 15a and 15b and the upper surface of the return conveyor 12. A gap h is provided, and the surface speed of the pair of width-shifting drive rolls 15a and 15b is set to be faster (for example, 1.2 to 2.5 times) than the surface speed of the return conveyor 12, so that the mixing speed is increased. The kneading material Wx is efficiently wound up.
[0018]
In the first embodiment, the pair of width-adjusting driving rolls 15a and 15b are provided on the top side of the return conveyor 12, but may be provided on the reversing conveyor 14 side as shown in FIG.
[0019]
Further, the rotational drive of the width-shifting drive rolls 15a and 15b is individually driven by a drive motor 17 connected to the roll shaft 16, and the mechanism for approaching, moving away from, or simultaneously moving is shown in FIG. As shown, a nut 18 is provided on the roll shaft 16 of the width-adjusting drive rolls 15a and 15b, the nut 18 is screwed to the left and right screw shafts 19, and the left and right screw shafts 19 rotate the same through the drive motors 20a and 20b. The pair of width-adjusting drive rolls 15a and 15b can be moved closer to and away from each other by rotating in the direction or rotating in opposite directions.
The present invention is configured as described above, and a pair of width-shifting devices that are movable in the direction perpendicular to the traveling direction (arrow Z direction) of the return conveyor 12 and that are close to and away from each other on the carry-out side upper portion of the return conveyor 12. The drive rolls 15 a and 15 b are disposed, and the pair of width-adjusting drive rolls 15 a and 15 b are formed in a substantially drum shape in cross section, and the center line S of the roll shaft 16 is returned to the rear side with respect to the traveling direction of the conveyor 12. By inclining the installation, the kneaded material Wx can be forcibly wound up and squeezed at the upper part of the carry-out side of the return conveyor 12, thereby making the limit of the squeezed amount of the kneaded material Wx high. It becomes possible to improve chemical dispersibility.
[0020]
Further, since the kneading material Wx is squeezed on the return conveyor 12 in front of the kneading rolls 11a and 11b, the cooling efficiency of the kneading material Wx formed into a sheet is less likely to be lost, and the cross section of the drum is substantially reduced. Since the sheet-shaped kneading material Wx is wound and drawn by the sheet-like width-shifting drive rolls 15a and 15b, the sheet-like edge of the kneading material Wx can be efficiently handled without any trouble. I can do it.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a kneading material kneading apparatus embodying the present invention.
2 is a plan view of FIG. 1. FIG.
FIG. 3 is an enlarged front view of a width-shifting drive roll having a substantially drum-shaped cross section.
FIG. 4 is a plan view of a refining device showing another embodiment of the present invention.
FIG. 5 is a diagram illustrating the configuration of a drive mechanism for a width-shifting drive roll.
FIG. 6 is a schematic front view of a conventional kneading material kneading apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Return conveyor 2a, 2b Pinch roll 3a, 3b A pair of kneading roll 4 Unloading conveyor 5 Inversion conveyor X Transfer part 10 Rewinding device 11a, 11b Kneading roll 12 Return conveyor 13 Unloading conveyor 14 Inverting conveyor 15a, 15b Widening drive Roll 16 Roll shaft 17 Drive motor 18 Nut 19 Left and right screw shafts 20a, 20b Drive motor S Center line α Inclination angle P Perpendicular line Wx Kneaded material h Clearance

Claims (4)

Place a carry-out conveyor to the lower side of the pair of left and right kneading roll, will place the conveyor back to the upper side, the carry-out conveyor of kneading materials to be introduced from the back conveyor and kneaded by the kneading roll after dropping above, in the kneading-back device kneaded material was again perform Repetition rate mixing kneading back to the return conveyor,
A pair of width-shifting drive rolls that are movable in the direction orthogonal to the direction of travel of the conveyor and that can move toward and away from each other are disposed on the upper part of the return conveyor on the delivery side ,
The pair of width-shifting drive rolls are formed in a substantially drum shape in cross section, the centerline of the roll axis is inclined rearward with respect to the traveling direction of the conveyor, and the horizontal axis of the return conveyor is centered on the roll axis A remixing device for a kneaded material in which an inclination angle with respect to a perpendicular to the upper surface is set in a range of 10 ° to 50 ° . 2. The kneading material refining device according to claim 1, wherein the pair of width-adjusting driving rolls are wound around the kneaded material at an upper part on the carry-out side of the return conveyor and are narrowed down in the width direction .   The kneading material according to claim 1 or 2, wherein a gap is provided between a tip of the pair of width-shifting drive rolls and an upper surface of the return conveyor, and the gap is set to a gap narrower than a thickness of the material to be width-shifted. Reversing device. 4. The kneading material kneading apparatus according to claim 1, 2, or 3 , wherein the surface speed of the pair of width-shifting drive rolls is set to be higher than the surface speed of the return conveyor.

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