JPS601438B2 - Screen rotor foreign object entanglement prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing entanglement of foreign matter in a screen rotor in a stock screen processing apparatus.

Figures 1 and 2 are used to screen stock paper.
As shown in the figure, a sealed rice cake 1 is divided into a raw material inlet chamber 2 and a passed raw material receiving chamber 3 by a cylindrical porous furnace member called a screen cylinder, and a screen rotor 4 is arranged in the raw material inlet chamber 2. The screen rotor 4 was rotated, and the raw material was introduced into the raw material inlet chamber 2 from the raw material inlet 5, passed through the furnace at the screen cylinder 6, passed through the screen cylinder 6, and entered the raw material receiving chamber 3. The raw material is discharged from the raw material outlet 7, and a part of the raw material that has not passed through the screen cylinder 6 is discharged from the bottom of the raw material inflow chamber 2, and the scraper 8 of the screen rotor 4 scrapes the screen surface of the screen cylinder 6. There are already known structures that allow continuous heating of raw materials while avoiding clogging.

In the figure, 9 is a rotating body of the screen rotor 4, 10 is a support rod for attaching the scraper 8 to the rotating body 9, 11 is a drive shaft connected to the rotating body 9, and 12 is a bearing for the drive shaft 11. The output of the motor 16 can be transmitted to the shaft 11 via a transmission mechanism consisting of a large pulley 13, a power belt 14, and a power sheave 15. However, when such a screen processing device is incorporated into waste paper recycling equipment, the following problems arise.

That is, in this case, the foreign matter from the vinyl fine brush that bound the waste paper flows into the raw material inflow chamber 2 together with the raw material in which the waste paper has been melted, but if there is a large amount of this foreign matter, the screen rotor that is rotating will be Since foreign objects become entangled, there is an inconvenience in that the operation must be stopped frequently to remove the foreign objects. The screen rotor foreign matter entanglement prevention device of the present invention was made to eliminate the above-mentioned disadvantages in the screen rotor processing equipment. A foreign matter entanglement prevention member is provided between the scraper and the rotating body, and has an inclined part that touches the front end green of the scraper in the rotating direction and the surface of the rotating body at both ends, and intersects at an obtuse angle with a line connecting the front edge of the scraper in the rotating direction and the following green. It is characterized by being provided in between.

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 3 and 4 show an example of the present invention. As shown in FIG. A scraper 8 extending obliquely forward and downward in the direction of rotation a along the inner wall of the frame is connected by support rods 10a and 10b at two upper and lower positions, respectively, and a plate 17a and a lower side are connected to each other by support rods 10a and 10b to prevent foreign matter from getting entangled with the upper support rod 10a. A plate 17b for preventing foreign matter from getting entangled with the support rod 10b is provided continuously to the upper support rod 10a and the lower support rod 10b, respectively, between the rotational front end of the scraper 8 and the rotating body 9. . To specifically explain the upper and lower plates 17a and 17b for preventing entanglement of foreign objects, the upper plate 17a extends from the front edge A of the scraper 8 in the rotational direction to the front edge A of the scraper 8 in the rotational direction. A line 1 connecting the point and the center of rotation of the rotating body 9,
The inclined portion 1 is inclined toward the rotational direction a at an angle Q and extends so as to touch the surface of the rotating body 9 at an angle that is not perpendicular to the surface of the rotating body 9.
8a, and the lower plate 17b rotates with respect to a line 12 connecting the front end of the scraper 8 in the rotation direction to the front end of the scraper 8 in the rotation direction and the center of rotation of the rotating body 9. An inclined portion 18 that is inclined at an angle of 8 toward the direction a and extends so as to touch the surface of the rotating body 9 at an angle that is not perpendicular to the surface of the rotating body 9.
These plates 17a and 17b are fixed to a support rod, a rotating body, or a scraper by welding or the like.

With the above-mentioned configuration, even if a foreign object such as a vinyl string in the raw material that has fallen from the raw material inlet 5 tries to get entangled with the support rods 10a, 1ob, the plates 17a, 17b will not be able to maintain the slopes 18a, 1ob.
8b, and the inclined portions 18a and 18b are configured to touch the front end edge of the scraper in the rotational direction and the rotating body surface at both ends, and intersect at an obtuse angle with a line connecting the front end green and the rear end green of the scraper in the rotational direction. Having, plates 17a, 17
b connects to support rods 10a, 10b and plates 17a, 17b
Because there is a considerable distance between the inclined parts 18a, 18b and the rear ends of the support rods 10a, 10b in the rotational direction, and because the screen rotor 4 rotates and centrifugal force is applied to the foreign matter, the foreign matter 22 is not supported. It moves toward the scraper 8 along the inclined parts 18a and 18b of the plate without getting entangled with the blades 10a and 10b (see Fig. 7), and is eventually pushed out between the scraper 8 and the screen cylinder 6, and is rotated in the direction of rotation of the scraper 8. The material sinks inside the raw material inflow chamber 2 due to the downward tilt in the front,
The raw material is discharged from the bottom of the raw material inflow chamber 2. On the other hand, the raw material that has passed through the screen cylinder 6 and flowed into the raw material receiving chamber 3 from the raw material inflow chamber 2 is discharged from the raw material outlet 7 as shown in FIG. The raw material is extracted from the bottom of the raw material inflow chamber 2. 5 and 6 show another embodiment of the present invention in which the outside of the support rod 10c is covered with a cover 19 for preventing foreign objects from getting entangled. Similarly, the direction of rotation a is determined with respect to the line 13 connecting the front end edge of the scraper 8 in the rotational direction shown by C to the front end of the scraper 8 in the rotational direction shown in green and the center of rotation of the rotating body 9.
The inclined portion 20, which is inclined at an angle of y and extends so as to touch the surface of the rotating body 9 at an angle that is not perpendicular to the rotating body, has a green front end in the rotation direction, and is formed into a streamlined shape in consideration of fluid resistance. Even when a cover having such a structure is used, the same effects as those of the first embodiment can be obtained, and foreign matter can be prevented from getting entangled with the support casing 10c. Note that the present invention is not limited to the above-mentioned embodiments; for example, a vertical plate 21 may be provided between the plates 17a and 17b in the embodiments of FIGS. 3 and 4, and the upper and lower ends of the vertical plate 21 may be Boards 17a and 17 respectively
The scraper 8 may be attached to the inclined portions 18a, 18b of the rotor 9, or the support rods 10a, 10b, 10c may be omitted and the scraper 8 may be attached to the rotating body 9 using the plates 17a, 17b or the cover 19. It goes without saying that various modifications can be made without departing from the gist of the invention.

Since the present invention has the above-mentioned configuration, it is possible to prevent foreign objects from getting entangled with the support rods, etc., and since there is little fluid resistance, it is possible to achieve the excellent effect that an increase in the driving horsepower of the screen rotor can be suppressed to a minimum.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a stock screen processing device, and Fig. 2 is a screen. 3 is a plan view of the screen rotor foreign object entanglement prevention device of the present invention, FIG. 4 is a view taken along the W-W arrow in FIG. 3, and FIGS. Fig. 5 is a plan view, Fig. 6 is a view taken in the direction of arrow W- in Fig. 5,
FIG. 7 is a diagram explaining the action. 2... Raw material inflow chamber, 3... Raw material receiving chamber, 4... Screen rotor, 6... Screen cylinder, 8... Scraper, 9... Rotating body, 10, 10a, 10b ,10c...
...Support rod, 17a, 17b...Plate, 18a
, 18b, 20... Inclined portion, 19. ．．・・・・・・
Cover, a...Rotation direction. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. In a screen rotor equipped with a rotating body that includes a scraper that rotates along the inner surface of a screen cylinder, the front edge of the scraper in the rotating direction and the surface of the rotating body are in contact with each other at both ends, and the front edge and the rear edge of the scraper in the rotating direction are connected. 1. A device for preventing entanglement of foreign objects in a screen rotor, characterized in that a foreign object entanglement preventing member having an inclined portion intersecting a line at an obtuse angle is provided between a scraper and a rotating body.