JPH0593809U - Kneader for rubber or polymer materials - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the biting of the material to be kneaded between the two rotors. In a kneading machine provided with two meshing rotors 3 and 3 having long blades 4 and short blades 5 and 6 in a kneading chamber 2, a plurality of blades are provided on the blade surfaces of the long blades 4 or the short blades 5 and 6. It is characterized in that the protrusions 17 are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a kneader for rubber or polymer material.

[0002]

[Prior Art]

 In a conventional kneading machine for rubber or polymer material having two intermeshing rotors having long blades and short blades in the kneading chamber, for example, as shown in FIG. A pair of rotors 3, 3 are rotatably incorporated, and the rotors 3, 3 are rotated inwardly by a motor (not shown), and the rotor 3 has long blades 4 and short blades 5 as shown in FIG. , 6, and a drop door 7 for discharging the kneaded rubber, which is opened and closed by an opening / closing device (not shown), is provided in the lower part of the kneading chamber 2.

On the other hand, a lid 10 having an object to be kneaded 9 is swingably incorporated in the hopper 8, and a floating weight 11 is incorporated in the hopper 8 so as to be able to move up and down. It is fixed to one end of a piston rod 14 fixed to a piston 13 in an air cylinder 12 fixed above the hopper 8. Thus, the rotor 3 is rotated, and the material to be kneaded is charged through the charging port 9, and then the switching valve (not shown) is switched to discharge the pressurized air in the lower air chamber 16 of the air cylinder 12, and at the same time the air cylinder 12 Pressurized air is introduced into the upper air chamber 15 to lower the floating weight 11, and the material to be kneaded is pressed into the kneading chamber 2 and pressurized to knead, and then the floating weight 11 is raised to remove the chemicals. After charging, the mixture is lowered again to knead, and when the kneading is completed, the drop door 7 is opened and the material to be kneaded is discharged from below.

[0004]

[Problems to be solved by the device]

 However, the conventional kneading has the following problems. That is, in FIG. 5 and FIG. 6, when the object to be kneaded introduced from the object to be kneaded 9 is bited by the rotor 3 in the chamber 1 and kneaded, two rotors 3 of the hard object to be kneaded are mixed. There were drawbacks such as poor kneading due to poor biting in the gap and prolonging the kneading time.

The present invention was developed to address such a problem, and an object thereof is to improve the biting of the material to be kneaded, which is bitten between the two rotors.

[0006]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 4 corresponding to an embodiment. The present invention includes a long blade 4 and short blades 5 and 6 in a kneading chamber 2. In a kneading machine of rubber or polymer material having book meshing rotors 3 and 3, a plurality of protrusions 17 are provided on the blade surface of the long blade 4 or the short blades 5 and 6 described above.

[0007]

[Action]

 With the above-mentioned means of the present invention, the plurality of protrusions projecting on the blade surface of the long blade or the short blade are attracted to the material to be kneaded and are easily caught between the rotors even when the material to be kneaded is highly hard. It is kneaded in a short time because it receives shearing force.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the drawings, reference numerals 1 to 6 denote the same parts as those in the conventional example shown in FIG. 5, and the description thereof will be omitted. In the present invention, a plurality of protrusions 17 are provided on the blade surface of the long blade 4 or the short blades 5 and 6, and the protrusion 17 has a strip protruding in the width direction of the blade as shown in the figure. Was formed.

3 and 4 show another embodiment of the present invention, in which a plurality of projections 17 provided on the blade surface of the long blade 4 or the short blades 5, 6 are detachably attached by screws 18. It was formed with spike-shaped protrusions that are screwed together.

[0010]

As described above, according to the present invention, the long blades or short blades of the meshing type rotor are provided with a plurality of protrusions on the blade surface, and therefore the protrusions are put into the kneading chamber. Since the material to be kneaded with the material to be kneaded between the rotors is good and the material to be kneaded is sheared with a high shearing force, the material can be kneaded in a short time.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a rotor blade of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a plan view showing another embodiment of the rotor blade of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a plan view showing a conventional rotor blade.

FIG. 6 is a side view showing a conventional kneading machine body.

[Explanation of symbols]

 2 Kneading chamber 3 Rotor 4 Long blade 5 Short blade 6 Short blade 17 Protrusion

Front page continuation (72) Toshikazu Shojima 5-717-1, Fukahori-cho, Nagasaki-shi, Nagasaki Sanhishi Heavy Industries Ltd. Nagasaki Research Institute (72) Akira Yoshida 5-717, Fukahori-cho, Nagasaki-shi, Nagasaki Ryo Engineering Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A kneading chamber having long and short blades 2
A kneading machine for rubber or polymer material, comprising a meshing rotor of a book, wherein a plurality of protrusions are provided on the surface of the long blade or the short blade.