JPH02200882A - Broke treating machine - Google Patents

Abstract

PURPOSE:To perform easy, quick and sure separation of a roll paper part of a roll paper from a core tube by attaching a specific selective partition wall to a perforated cylindrical drum. CONSTITUTION:A roll paper is introduced into a rotary drum A through an inlet port 24b and separated into a roll paper part and a core tube part by the rotation of the drum and the action of a treating liquid Lq impregnated through a perforated cylindrical exterior material 4. The roll paper part is loosened to small pieces with the treating liquid and transferred to a water-tank part 17 outside of the drum. The core tube part is transferred toward the discharging port 7 of the drum while being washed with washing water supplied from a water-feed pipe 22. The core tube part is passed through a selection port 12 of a selective partition wall B having a nearly semicircular vertical plane 10 and an inclined plane 11 and is discharged from a drum-container D by a discharging guide member C.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for removing waste paper when defective waste paper occurs in a roll of paper such as toilet paper, which consists of a core tube part and an upper roll paper part. Separate the core tube part and roll paper part,
The present invention relates to a waste paper processing machine that can convert only roll paper into valves while removing only the core tube part.

[Conventional technology and its problems]

Conventionally, in rolled paper such as toilet paper, towel paper, etc., which consists of a core tube part and a roll paper part, waste paper, which is a defective product such as holes or uneven fiber material spots in the roll paper part, has been produced. When this occurs, both the core tube section and the roll paper section are treated with white water. At this time, the fiber material in the core tube portion mixes with the roll paper portion,
It was not possible to recycle the white paper roll. For this reason, separating the core tube portion and the rolled paper manually is a time-consuming process, and when a large amount of paper must be processed, it takes a long time and the work efficiency is extremely low.

[Means for solving problems]

Therefore, the inventor worked diligently to solve the above problem.

As a result of repeated research, the invention was developed by installing a cylindrical outer material having a large number of small holes horizontally in a water tank so as to be rotatable, with one longitudinal side of the cylindrical outer material serving as an intake port, and the other side serving as an intake port. A drum is formed as the discharge port, and a sorting partition wall consisting of a substantially half-moon-shaped vertical surface and an inclined surface that can be inscribed in the drum is provided near the discharge port side, and the vertical surface and the sloped surface are A sorting port is formed at approximately the center of the cross-section of the drum and at an appropriate interval in the front-rear direction of the drum, with the inclined surface facing outward from the vertical surface and the inclined surface extending in a direction substantially perpendicular to the sorting port. A waste paper disposal machine with the end inclined toward the discharge port side, or a cylindrical outer material having many small holes installed horizontally in the water tank section so as to be rotatable, and one longitudinal side of the cylindrical outer material being installed. A drum is formed with one side as a mouth and the other side as a discharge port, and a sorting partition wall consisting of a substantially half-moon-shaped vertical surface and an inclined surface that can be inscribed in the drum is provided near the discharge port side. A sorting port is formed by the vertical surface and the inclined surface at approximately the center of the cross section of the drum and at an appropriate interval in the front and back direction of the drum, with the inclined surface facing outward from the vertical surface and the sorting port. A discharge guide body is provided with an inclined surface end in a substantially orthogonal direction inclined toward the discharge port side, and has a pyramid shape with a plurality of triangular guide surfaces on the discharge port side, and a plate piece is formed from the ridgeline part. , a waste paper disposal machine is installed in the drum so that its apex faces outward, or a cylindrical outer material having a large number of small holes is installed horizontally in the water tank part so as to be rotatable, and the cylindrical A drum is formed with one longitudinal side of the outer material serving as an inlet and the other side serving as an outlet. The vertical surface and the inclined surface are provided at the exit side, and the vertical surface and the inclined surface form a sorting port having an appropriate interval in the longitudinal direction of the drum, and the vertical surface and the inclined surface are located approximately in the center of the cross section of the drum, and the inclined surface is connected to the vertical surface. A waste paper disposal machine in which the end of the slanted surface in the direction substantially perpendicular to the sorting port is inclined toward the discharge port side, and a belt conveyor is installed on the discharge port side to communicate the inside of the drum with the outside of the drum. By doing so, it is possible to separate the core tube part and the roll paper part for the waste paper of the rolled paper, and also to handle this in large quantities, thus solving the above-mentioned problems.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 14.

A is a drum, and radial support portions 2 are provided at appropriate locations on the rotating shaft 1. Specifically, as shown in FIGS. 1 to 3, the radial support part 2 has support rods 2b, 2b, . . . fixed at equal angles to the outer circumference of a ring-shaped boss part 2a. The boss portion 2a is inserted into the rotating shaft 1 and fixed to the rotating shaft 1 using a locking bolt or a fixing means such as welding.

As shown in FIG. 2, four supporting rods 2b, 2b, . In addition, radial support portions 2 are provided at two locations in the longitudinal direction of the rotation axis l.
are provided, one of which is provided at the end of the rotation axis l, as shown in FIG. Further, as will be described later, the rotating shaft 1 is connected to a prime mover such as a motor in a power section 25 at one end thereof to receive rotational power.

Although not shown, the drum A may be configured to rotate by rotating rollers that support the periphery of the drum A using power.

The main aggregate 3 is fixed to the tips of the support rods 2b, 2b, . . . of the radial support portion 2 in substantially the same direction as the rotating shaft 1. That is, as shown in FIG. 3, the support rods 2b, 2 of adjacent radial support portions 2.2
The main aggregate 3 is fixed between the b ends. In this way, a plurality of main aggregates 3, 3.・・・
・is the support rod 2b.

2b, . . . are fixed to the tips. Here, main aggregate 3
is fixed so as to be slightly inclined with respect to the longitudinal direction of the rotation axis l (see Fig. 3). It is structured like this.

The inner peripheral surface of the cylindrical outer material 4 is fixed to the main aggregate 3. The cylindrical outer material 4 has a large number of small holes 4a,
In the illustrated example, a wire mesh is used for the cylindrical outer surface material 4, and the spaces created between the wires that make up the wire mesh also have small holes 4a, 4a, ...・・・
included in the concept of

Further, as an example of the cylindrical outer material 4, although not shown, a large number of small holes 4a, 4a, . . . are formed in a thin metal plate.
For example, punched metal etc. also exist. The small hole 4a,
4a, . . . are roll paper portions R2 of roll paper R such as toilet paper that has a defective part inside the drum A.
The size is such that small pieces separated from the core tube portion Rc can pass therethrough, but cannot pass through the core tube portion Rc.

Further, the cylindrical outer material 4 may be formed to have the same diameter on both ends (see Examples), or may be formed in a tapered shape so that the diameter on the discharge lower side, which will be described later, is larger.

Between the main aggregates 3.3 adjacent to each other on the inner surface side of the cylindrical outer material 4, sub aggregates 5, 5. ... are provided along the longitudinal direction of the rotating shaft 1 (see FIG. 2).

Furthermore, as shown in FIG. 3, the adrenal gland material 5 is preferably provided at one end of the cylindrical outer surface material 4 ( 1st
The left side in the figure is the intake port 6 of the drum A, and the other end (the right side in Figure 1) is the discharge lower (
(See Figure 1).

Specifically, donut-shaped disk-shaped side plates 8 and 9 are fixed to the intake chamber 6 side and the discharge chamber side, respectively. Then, holes with appropriate diameters are formed inside the side plates 8 and 9,
This is the intake port 6 and the discharge lower.

The rotating shaft 1 has one end protruding outward from the intake port 6,
It is an input part that receives power from the prime mover. The other end of the rotating shaft 1 is located inside the drum A, slightly closer to the discharge lower than the longitudinal center of the drum A (see FIG. 3).

A sorting partition wall B is provided at the discharge lower approach point of the drum A (see Fig. 3).The sorting partition wall B consists of a vertical surface lO and an inclined surface 11, both of which have a half-moon shape. It can be substantially inscribed in the inner peripheral surface of the cylindrical outer surface material 4 of the drum A. Specifically, as shown in FIG. 5, the vertical surface 10 has a semicircular vertical rail 10a between the curvature of the cylindrical outer surface material 4, and a plurality of partition rods 10b, 10b.
.

... are fixed at approximately equal intervals. The partition rod 10b.

10b, ... interval j! 1 is such that the core tube R0 of the rolled paper R cannot pass through. The inclined surface 1.1 is
A plurality of partition rods 11b are provided on an inclined frame member 11a formed in an arc shape similar to the vertical surface 10.

11b, . . . are fixed at equal intervals. The intervals 11 between the partition rods 11b, llb, . . .
Similarly to b, 10b, . . . , the core tube portion Rc of the rolled paper R
It is to the extent that it cannot pass through. The inclined frame material 11
In a, the inclined surface 11 is arranged in an inclined manner with respect to the longitudinal direction of the cylindrical outer surface material 4, and has a substantially elliptical curve.

The sorting partition wall B has a vertical surface 10 located further inside the drum A than the inclined surface it, approximately in the center of the cylindrical outer material 4 in the cross-sectional direction, and in the longitudinal direction of the cylindrical outer material 4. It is fixed in such a way that sorting ports 12 are formed at appropriate intervals. Specifically, as shown in FIG. 5, the separation port 12 is located between the partition rods lOb and 10b where the vertical surface 10 and the inclined surface 11 face each other. The interval is such that only the core tube portion Rc of the paper R can pass through.

The inclined surface 11 is formed to be inclined toward the discharge lower side as the cylindrical outer surface material 4 is viewed from the side and moves away from the approximate center (see FIGS. 1 and 4).
1 (see FIG. 5) is approximately 60 degrees with respect to the longitudinal direction of the drum A in the embodiment.

Although not shown, the vertical surface 10 and the inclined surface 11 of the sorting partition wall B may be formed of wire mesh similarly to the cylindrical outer surface material 4, or may be formed of a simple metal plate without holes. Sometimes.

Reference numeral C denotes a discharge guide, which is provided at the lower discharge location. The discharge guide C is specifically formed in the shape of a pyramid such as a triangular pyramid, and the pyramid is formed by the substantially triangular guide surface 13.

The pyramid has three guiding surfaces 13.13. Although a triangular pyramid having four guiding surfaces 13, 13°, etc. is preferable, a square pyramid having four guiding surfaces 13, 13°, etc. may also be used.

The guide surface 1-3.13. The substantially trapezoidal plate pieces 14, 14. ... are formed, and two adjacent sides of the guide surface 13 are surrounded by the plate pieces 14, 14. Its guide surface 13.13. ...
and plate pieces 14, 14. Although the plate pieces 14 and 1 are made of wire mesh, they may be made of a simple metal plate.
4. ... have connecting pieces 15, 15 . for attachment to the side plate 9 of the discharge lower. ... is fixed.

As described above, the discharge guide C is fixed to the lower discharge portion via the connecting piece 15 thereof.

In the figure, reference numeral 16 denotes a discharge pipe, which is fixed to the drum A from the 9 end of the side plate of the discharge lower so as to face the outside.

D is a drum container, which mainly consists of a water tank part 17 and a cover part 18. The water tank section 17 contains a processing liquid L such as white water.
@ is stored, and the lower part of the cross section of drum A is always immersed in the processing liquid. The water tank part 17
An auxiliary water tank portion 19 is provided adjacent to the auxiliary water tank portion 19, and the processing liquid of the water tank portion 7 can flow into the auxiliary water tank portion 19 by opening and closing the gate 20. The auxiliary water tank section 19 is formed with a delivery port 21 connected to the next process.

The cover part 18 has an inverted U-shape in cross section, and the water tank part 17
The flanges 18a, 18a of the cover part 18 are fixed to the flanges 17a, 17a of the cover.

22 is a water pipe, which is provided inside the cover part 18. Specifically, the water pipe 22 is connected to the water spray holes 2 at appropriate intervals.
2a, 22a, . . . are formed along the longitudinal direction of the housed drum A, and are used to sprinkle water to remove clogged small holes 4a, 4a, . This is prevented by the pressure of water jetting out from the holes 22a, 22a, . Sprinkle hole 22a of the water pipe 22
Although the direction of water is not shown in the figure, it is often configured to spray water mainly facing downward and diagonally rearward, and the water pipe 22 is connected to the water tank section as shown by the chain line in FIG. I
・It may be provided within 7. The installation of the water pipe 22 is as follows:
The water sprinkling hole 22a is oriented in the same direction as the longitudinal direction of the rotating shaft 1, and the water sprinkling hole 22a is provided so as to be able to spray water so as to face diagonally upward and rearward.

Furthermore, a discharge opening 23 is formed in the drum container at a location corresponding to the discharge lower of the drum A. Namely, the aquarium part! 7 and the semicircular notches 23a, 2 in the cover part 1B.
3b is formed.

Reference numeral 24 denotes a chute, which is provided at a location corresponding to the intake slot 6 side of the drum A of the drum container. Specifically, the chute 24 has a funnel shape, and the rolled paper R introduced from the upper opening 24a is passed through the lower end outlet 24.
It is designed to be fed into drum A from point b. A power section 25 is provided on the auxiliary water tank section 19.

Reference numeral E denotes a belt conveyor, and as shown in FIG. 14, it is provided so as to be located near the discharge lower side of the drum A of the drum container. When the belt conveyor E is provided, the discharge guide C is not provided on the drum A.The belt conveyor E is attached to 23 discharge openings of the drum container, and one end of the belt conveyor E is attached to the drum A. It enters the inside of drum A from the discharge lower of A,
The other end is located outside the drum receptacle.

[Effect]

First, the water tank section 17 is filled with a treatment liquid Lq such as white water at an appropriate water level so that the lower side of the drum A is immersed. Then, roll paper R such as toilet paper, which is waste paper, is put in through the upper opening 24a of the chute 24, and then passed through the outlet 24b.
feed it into the inside of drum A (see Figures 1 and 8).
.

The drum A rotates, and the rolled paper R inside is filled with processing liquid that enters through the small holes 4a, 4a, etc. of the cylindrical outer material 4, and the main aggregate 3 and secondary aggregate 5 of the drum A Rolled paper R
The rolled paper R is separated into the rolled paper portion R and the core tube portion Rc by applying a strong impact to the roll paper R (see Fig. 9). The treatment liquid in the water tank 17 outside the drum A is loosened and scattered inside the small holes 4a, 4a, . . . of the cylindrical outer material 4. ...More drum A
It is sent out to the outside water tank section 17 (see FIG. 9).

On the other hand, the core pipe portion Rc is formed by the diagonal jetting pressure of washing water from the water pipe 22, or by the pressure of the washing water from the drum A.
By shifting the phase of the mounting position on both ends of the
As the drum A rotates, it moves toward the discharge lower side of the drum A and reaches the sorting partition wall B. Therefore, when the inclined surface 11 of the sorting partition wall B is located below the drum, the core tube portions R,,R,.

... is concentrated at the corner formed by the inclined surface 11 and the cylindrical outer material 4 (see Fig. 1θ), and the inclined surface 11 and the main aggregate 3. The core pipe portion Rc is pushed upward by the secondary aggregate 5 toward the discharge lower of the drum A (see the dotted line in FIG. 10).
were located above the drum A, the core tube portions Rc and R were concentrated at the corner between the inclined surface 11 and the cylindrical outer surface material 4.
c, . . . fall along the inclined surface 11 and enter the sorting port 1.
2, passes over the sorting partition wall B and reaches the vicinity of the discharge lower (see Fig. 11). At this point, roll paper portion R2 that has not yet been completely separated from the core tube portion Rc is separated from the core tube portion Rc. Since the diameter of the paper sheet is large, it cannot pass through the sorting port 12 which has a predetermined width, and the operation of separating the core pipe portion Rc and the roll paper portion R using the drum A is continued again.

The core tube Rc that has reached the discharge lower is the drum A.
Due to the rotation, the drum A is pushed upward by the discharge lower side surface of the inclined surface 11 and the main aggregate 3, etc., and when it reaches an appropriate height, the core tube portion Rc moves to the guide surface of the discharge guide C. 13, and can be discharged along the guide surface 13 to the outside of the drum A, and thus to the outside of the drum container (11th
(see figure).

Further, when a belt conveyor E is used as a drum container (see FIG. 14), the core pipe portion Rc falls onto the belt of the belt conveyor E and is discharged to the outside by the belt.

〔Effect of the invention〕

First, in the invention of claim 1, the small hole 4a.

The cylindrical outer surface material 4 having a large number of 4a, . . .
The cylindrical outer material 4 is horizontally installed and rotatably provided, one longitudinal side of the cylindrical outer material 4 serves as an intake port 6, and the other side serves as a discharge lower to form a drum A, and a substantially half-moon that can be inscribed in the drum A. A sorting partition wall B consisting of an O-shaped vertical surface 10 and an inclined surface 11 is provided closer to the discharge lower side, and the vertical surface 10. ! :? 11
A sorting port 12 is formed with the slanted surface 11 at approximately the center of the cross-section of the drum and at an appropriate interval in the front-rear direction of the drum A, and the slanted surface 11 is placed outward from the vertical surface 10 to form a sorting port 12. By using a waste paper processing machine in which the end of the inclined surface 11 in the direction substantially perpendicular to the opening 12 is inclined toward the discharge lower side, firstly, the roll paper portion R9 and the core tube portion of the roll paper R, which is waste paper, are removed. Rc
It has various effects such as the separation work can be done easily and quickly, secondly, the separation work can be done reliably, and thirdly, a large amount of rolled paper R, which is waste paper, can be processed.

To explain these effects in detail, the drum A is disposed inside the drum container so as to be placed inside the water tank 17, and the cylindrical outer surface material 4 of the drum A has a plurality of small holes 4a. , 4a, . . . are formed, and the water tank portion 17
By filling the tank with a processing liquid such as white water to an appropriate water level, the lower part of drum A is always immersed in the processing liquid, and the lower part of drum A has a cylindrical shape. The processing liquid is poured through the small holes 4a, 4a, . . . of the outer material 4,
flows in and out, and at the lower part inside the drum A, the processing liquid L1
exists, so when the power section 25 is started and the drum A is rotated together with the rotary shaft 1, and the rolled paper R, which is waste paper, is put inside the drum, the rolled paper R is is stirred, and the rolled paper portion R of the rolled paper R is torn into small pieces and separated from the core tube portion Rc together with the processing liquid L9 in the water tank portion 17. By simply putting the roll paper R, which is used as waste paper, into the drum A, the roll paper R can be separated from the roll section R and the core tube section Rc almost automatically and quickly, making it an extremely simple operation. It can be done.

Further, in the present invention, a sorting partition wall B consisting of a substantially half-moon-shaped vertical surface 10 and an inclined surface 11 that can be inscribed in the drum A is provided near the discharge lower side of the drum A, and the vertical surface 10 and the inclined surface A sorting port 12 is formed with the shaped surface 11 at approximately the center of the cross-section of the drum A and at an appropriate interval in the front-rear direction of the drum A, with the inclined surface 11 being outward from the vertical surface 10, and the sorting port By slanting the end of the inclined surface 11 in the direction substantially perpendicular to the direction 12 toward the discharge lower side, when the rolled paper portion R of the rolled paper R is separated from the core tube portion Rc by the processing liquid L9,
As the core tube portion Rc rotates, the approximately half-moon-shaped inclined surface 11
The core tube portion Rc can be taken out from the sorting port 12 as it is further rotated, which has the effect of reliably separating the reusable roll paper portion R2 from the unusable core tube portion Rc. .

Furthermore, since it is possible to put a large amount of rolled paper R, which is waste paper, into drum A, a large amount of rolled paper R, which is waste paper, can be processed at one time, and work efficiency is extremely improved. be able to.

Next, in the invention of claim 2, in contrast to the invention of claim 1, a plurality of triangular guide surfaces 13,
13. . . . in the shape of a pyramid, and the plate pieces 14, 14 . . . By using a waste paper processing machine in which the discharge guide C formed with... is inscribed in such a way that its apex faces outward from the drum A, first, only the core pipe portion Rc of the waste paper is discharged. Sometimes they can be discharged in a predetermined position outside the drum container.

These are the guide surfaces 13, 13, which form the discharge guide C.
* has a triangular shape, and its discharge guide C is a pyramid, and furthermore, plate pieces 14, 14 .
... is formed, the core pipe portion Rc that has passed through the discharge lower from the drum A falls from the upper part of the drum A onto the guide surface 13 of the discharge guide C as the drum A rotates. It moves along the slope of the guide surface 13, but as shown in FIG.
14 prevents the core tube portion Rc from falling off in the middle of the guide surface 13 when it is discharged to the outside of the drum A along the guide surface 13). The core tube R1 can be discharged from the apex of the triangular guide surface 13 and concentrated in one place, making the subsequent disposal work extremely efficient. It is similar and can produce the same effect.

Next, in the invention of claim 3, in contrast to the invention of claim 1, a waste paper processing machine is provided, in which a belt conveyor E is installed on the discharge lower side of the paper, which communicates the inside of the drum A with the outside of the drum A. , the unrecyclable core tube part R2 of the waste paper can be transferred to a desired position via the belt conveyor E, and in particular,
The core pipe portion Rc can be quickly discharged and the disposal work can be done efficiently.

The other configurations are the same as those of the invention according to claim 1, and the same effects can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a vertical side view of the invention, Fig. 2 is a cross-sectional view taken along arrows - - - of Fig. 1, and Fig. 3 is a drum portion of the invention. FIG. 4 is a perspective view of the main part of the discharge side of the drum, and FIG.
The figure is a perspective view of the sorting partition wall, Figure 6 is a perspective view of the discharge guide, Figure 7 is a partially cutaway perspective view of the discharge guide fixed to the discharge port of the drum, and Figures 8 and 9 are A schematic diagram showing the state in which the rolled paper is separated into the rolled paper part and the core tube part in the present invention, and FIGS. 1O and 11 are the states in which the core tube part is discharged outside the drum in the present invention. FIG. 12 is a plan view of the discharge guide, FIG. 13 is a sectional view taken along the line P-P in FIG.
FIG. 4 is a longitudinal sectional side view of another embodiment of the present invention. A: Drum, B: Sorting partition wall, C: Discharge guide, E: Belt conveyor, 4: Cylindrical External material, 4a...
...Small hole, 6...Intake, 7...
...Exhaust port, 10... Vertical surface, 11...
... Slanted surface, 12 ... Sorting port, 1
3...Guide surface, I4...Plate piece,
17...Aquarium section. Patent applicant: Iwashina Seisakusho Co., Ltd. Figure 8 Figure 1o Figure 9 Figure 11

Claims (3)

[Claims] (1) A cylindrical outer material having a large number of small holes is installed horizontally and rotatably within the water tank, and one longitudinal side of the cylindrical outer material is used as an intake port, and the other side is used as an outlet to form a drum. , a sorting partition wall consisting of a substantially half-moon-shaped vertical surface and an inclined surface that can be inscribed in the drum is provided near the discharge port side, and the vertical surface and the inclined surface are arranged at a location approximately at the center of the cross-section of the drum. and forming a sorting port having an appropriate interval in the front and back direction of the drum,
A waste paper processing machine characterized in that the slanted surface is outward from the vertical surface, and the end of the slanted surface in a direction substantially perpendicular to the sorting port is slanted toward the discharge port side. (2) A cylindrical outer material having a large number of small holes is installed horizontally and rotatably in the water tank, and one longitudinal side of the cylindrical outer material is used as an intake port, and the other side is used as an outlet to form a drum. , a sorting partition wall consisting of a substantially half-moon-shaped vertical surface and an inclined surface that can be inscribed in the drum is provided near the discharge port side, and the vertical surface and the inclined surface are arranged at a location approximately at the center of the cross-section of the drum. and forming a sorting port having an appropriate interval in the front and back direction of the drum,
The inclined surface is outward from the vertical surface, and the end of the inclined surface in the direction substantially perpendicular to the sorting port is formed to be inclined toward the discharge port side, and the pyramid shape is formed by a plurality of triangular guide surfaces on the discharge port side. A waste paper processing machine characterized in that a discharge guide member formed of a plate is inscribed in the drum so that its apex faces outward from the ridge line of the drum. (3) A cylindrical outer material having a large number of small holes is installed horizontally and rotatably in the water tank, and one longitudinal side of the cylindrical outer material is used as an intake port, and the other side is used as an outlet to form a drum. , a sorting partition wall consisting of a substantially half-moon-shaped vertical surface and an inclined surface that can be inscribed in the drum is provided near the discharge port side, and the vertical surface and the inclined surface are arranged at a location approximately at the center of the cross-section of the drum. and forming a sorting port having an appropriate interval in the front and back direction of the drum,
A belt conveyor whose slanted surface is outward from the vertical surface and whose slanted surface end in a direction substantially perpendicular to the sorting port is slanted toward the discharge port side, and which communicates the inside of the drum with the outside of the drum on the discharge port side. A waste paper processing machine characterized by having a built-in structure.