JPH1043719A - Production of regenerated matter of waste paper and apparatus for producing regenerated matter of waste paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To to easily possible to easily produce moldings, such as corner pads, used as cushion materials by dividing packing stages in a process for producing the regenerated matter of waste paper to plural times and packing aggregate sponge-like materials into molds, and compressing the aggregate sponge-like materials packed into the molds after the packing. SOLUTION: This apparatus has a fibrillating machine 2 for processing the waste paper to the cotton-like materials by cutting and pulverizing the waste paper. The cotton-like materials emerging from the fibrillating machine 2 are supplied together with a prescribed volume of water and glue material to a granulating machined 3, by which the materials are agitated and are worked to many aggregate sponge-like materials. The aggregate sponge- like materials are then packed dividedly plural times into the molds by a packing machine 4 and are compressed by a pressurizing device. Next, steam is passed into the molds in a heating machine 5 and the glue materials are converted to glue to adhere the aggregate sponge-like materials in the molds to each other to form moldings. Hot air is then passed into the molds by drying machine 6 to dry the internal aggregate sponge-like materials and thereafter, the dried moldings are removed from the molds in a mold parting machine 7, by which the desired molded articles are completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to old newspapers, old magazines,
The present invention relates to a method for manufacturing a recycled paper product and a recycled paper manufacturing apparatus for processing a recycled paper such as a corrugated cardboard into a buffer material, a plant culture medium and the like.

[0002]

2. Description of the Related Art With regard to a method for producing a recycled product by processing waste paper to regenerate it into a buffer material, a plant medium, etc., the applicant of the present invention has proposed an apparatus for producing a recycled product from Japanese Patent Application No. Hei 7-113666. This apparatus comprises a defibrillator for cutting and pulverizing waste paper to process it into a floc, and supplying a predetermined amount of water and a glue material while stirring the floc supplied from the defibrator to form a large number of aggregates. A granulator for processing into a spongy body, a container-shaped form having a bottom wall formed of a gas-permeable member and having an open top, and transferring the form from the granulator to the end of the production line. And a sponge body conveying device for accommodating the aggregated sponge bodies processed by the granulator in a mold placed at the transfer start end of the conveyor, and in the middle of the transfer path of the conveyor. A heater that allows steam to flow through the mold to gelatinize the paste material and adhere the aggregated sponge bodies in the mold to each other; and a predetermined aggregate of aggregated sponge bodies in the mold. A molding machine that circulates air while drying while pressing to the thickness, and directs it toward the transfer end of the conveyor. It is obtained by sequentially providing configuration.

[0003]

However, in the apparatus disclosed in Japanese Patent Application No. 7-113666, the aggregate of aggregated sponge bodies to which the glue material is adhered is laid flat in a mold, and then heated. Steam is passed through the mold in the machine, the paste material is gelatinized and the aggregated sponge bodies in the mold are adhered to each other, and then in the molding machine, the aggregated sponge body in the mold is The assembly is dried by flowing air from above to below while pressing the assembly to a predetermined thickness by a pressing member having a flat surface, thereby producing a mat-like regenerated product.

[0004] Therefore, the above-mentioned apparatus has no problem in the case of producing a relatively thin and planar regenerated product such as a mat-shaped regenerated product. When a molded product such as a corner pad used as a cushioning material (see FIGS. 8 and 9) is to be manufactured, the molded product is three-dimensional, thicker and more complex than a mat-shaped product. There is a problem because it is.

[0005] First, if the aggregated sponge is once filled in the mold as in the above-described apparatus, the aggregated sponge may not be sufficiently filled into the mold.
For this reason, there is a possibility that voids or extremely low density portions may be formed inside. Further, even after the aggregated sponge body is filled into the mold, the aggregated sponge body in the mold is compressed only once by a pressing member having a flat surface as in the molding machine of the above-described apparatus. There is a possibility that a portion having an insufficient filling density may occur in the resin, and if the filling density is too low, the molded product may be out of shape. In order to avoid this problem, if the pressure of the pressing member is increased to increase the packing density, there is a problem that the elasticity of the molded product is lost. Therefore, depending on the above-mentioned apparatus, when the molded product is three-dimensional, thick and has a complicated shape, there are no voids or extremely low-density portions inside, and the surface is clean and has a moderate elasticity. It is difficult to produce those having properties.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and to enable a molded article such as a corner pad to be manufactured as a recycled product of used paper. That is,
An object of the present invention is to produce a molded article having a three-dimensional, thick, and complicated shape, and there is no void or extremely low density portion inside the molded article, the surface is clean, and It is an object of the present invention to provide a method for manufacturing a recycled product of waste paper and an apparatus for manufacturing a recycled product of waste paper, which can manufacture a molded product having appropriate elasticity.

[0007]

Means for Solving the Problems The present invention is configured as follows to achieve the above object. That is, the method for producing a recycled waste paper according to the present invention includes a fibrillation step of cutting and pulverizing waste paper to process it into a floc, and a predetermined amount of water and paste while stirring the floc processed in the fibrillation step. A granulating step of supplying the material and processing it into a number of aggregated sponges, a filling step of filling the aggregated sponge into a mold and compressing it with a pressing device, and filling the aggregated sponge. A heating step of passing steam through the formed mold to gelatinize the paste material and bonding the aggregated sponge bodies in the mold together to form a molded product; In a method for manufacturing a recycled product of used paper, comprising: a drying step of drying the aggregated spongy body inside by passing hot air through the molding die adhered to each other, and a release step of extracting the dried molded product from the molding die. In the filling step, the aggregated spongy bodies are filled into the mold in a plurality of times. Together, in which a configuration to compress the spongy body of been Dan particulate filler into a mold after filling.

Further, the apparatus for manufacturing a recycled paper product of the present invention comprises:
A defibrillator that cuts and crushes waste paper to process it into a floc, and supplies a predetermined amount of water and glue while stirring the floc supplied from the defibrator to process a large number of aggregated sponges. A granulating machine, a filling machine for filling the aggregated sponge body into a molding die and compressing it with a pressurizing device, and passing steam through the molding die filled with the aggregated sponge body to form the paste material. And a heater for forming a molded product by adhering the aggregated sponge bodies in the mold to each other to form a molded product, and passing hot air through the mold in which the aggregated sponge bodies are adhered to each other by steam. An apparatus for manufacturing a recycled product of waste paper, comprising: a dryer for drying a granular sponge body; and a release machine for extracting the dried molded product from a molding die. A pressurizing member for compressing the aggregated sponge body is provided, and the aggregated sponge body in the mold is displayed. Of the surface of the pressure member corresponding to the edge is obtained by a configuration in which the ridge.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the overall arrangement of the manufacturing apparatus of the present invention. In FIG. 1, reference numeral 1 denotes an entire manufacturing apparatus, in which main components such as a defibrating machine 2, a granulating machine 3, a filling machine 4, a heating machine 5, a drying machine 6, and a release machine 7 are sequentially arranged. 2 is a front view showing the defibrating machine 2 to the granulating machine 3 of the manufacturing apparatus 1 in FIG. 1, and FIG. 3 is a granulating machine 3 to 3 of the manufacturing apparatus 1 in FIG.
FIG. 2 is a front view showing the release machine 7.

The manufacturing apparatus 1 is used for manufacturing a molded product S (see FIGS. 8 and 9) such as a corner pad used as a cushioning material when packing, for example, home electric appliances from waste paper. In order to form the molded product S, a molding die 8 as shown in FIGS.
(The outer die 81 and the core 84) are used. Hereinafter, a description will be given of a manufacturing method and a manufacturing apparatus in a case where the molding die 8 is used. In addition, it is a matter of course that the molded product S may have a shape other than such a shape.

First, the defibrating machine 2 breaks the used paper into small pieces each having a side of about 3 cm at an internal breaking portion (not shown), and pulverizes the broken paper in the defibrating machine 2 by an air current transfer device. The crushed paper is supplied to a crusher (not shown), and the crushed paper is pulverized while giving a predetermined moisture to be processed into a floc. The cotton-like material pulverized by the pulverizer is supplied to the granulator 3 by the airflow conveying device 100.

In the granulator 3, a freely rotating revolving body (not shown) is coaxially arranged inside a cylindrical storage tank 31 whose upper and lower surfaces are closed, and a stirring blade (plow) is attached to the revolving body. Is fixed, water is sprayed in a shower shape while rotating the rotating body, and the cotton-like material in the storage tank 31 is aggregated into a spongy body (pill-shaped).
Formed. Thereafter, the spraying of water is stopped, and a predetermined amount of glue material is supplied into the storage tank 31 from a glue material supply device (not shown) provided in the storage tank 31 to adhere to the outer peripheral surface of the aggregated sponge body. Let it. Thereby, the diameter of 2-1 is stored in the storage tank 31.
A large number of flocculent spongy bodies W of about 0 mm are formed. A discharge port 32 opened and closed by a shutter is formed at the bottom of the storage tank 31, and the aggregated sponge W is discharged from the discharge port 32 onto the sieve device 110.

As shown in FIG. 4, the sieving device 110 is of a slanted conveyor type, has a wire mesh on the bottom surface, and is vibrated by a motor. As a result, the aggregated sponge W having a particle size larger than the mesh of the wire mesh rolls along the inclination of the wire mesh and is collected in the collection container 111 placed at the front, while the aggregate having an appropriate particle size has passed through the mesh. The granular sponge W falls on the first belt conveyor 120 below.

At the end of the first belt conveyor 120, a second belt conveyor 130 is provided at right angles to the second belt conveyor.
A belt press 140 is provided at the top of the end of the belt conveyor 130. The belt press 140 is a conveyor type in which a belt is wound around two rollers, and one roller side is inclined so as to be close to the second belt conveyor 130, whereby the second belt conveyor 130 is moved. The conveyed aggregated spongy bodies W are driven to be sent out in the same direction as the second belt conveyor 130 while being sandwiched and compressed. In the vicinity of the end of the second belt conveyor 130, a filling machine 4 including a fixed amount supply device 44, an XY table 45, and a pressure device 40 is disposed.

As shown in FIG. 5, three fixed screw conveyors 44a are attached to the bottom of a box-shaped container having an open upper surface, and the tip of each screw conveyor 44a in the horizontal direction. A vertical screw conveyor 44b is attached to each. The screw conveyor 44b in the vertical direction has a tapered shape with a small diameter at the lower end side. Second belt conveyor 1
Agglomerated sponges W that have fallen and accumulated in the container from 30 via a screw conveyor 44a in the horizontal direction and a screw conveyor 44b in the vertical direction according to the rotation speed of these screw conveyors 44a and 44b. The fixed amount is supplied to the molding die 8 in the box 9 placed on the XY table 45 below.

As shown in FIG. 7, the box 9 has substantially square upper and lower surfaces, each of which is open. The lower surface has two strip-shaped vertical members and two strip-shaped vertical members. The transverse members are stretched at equal intervals, thereby providing nine holes. Further, a strip-shaped overhang is also provided at the lower edge of the inner side wall of the box 9, and the overhang and the above-mentioned vertical and horizontal members are used to directly overlie the holes, respectively. The molding die 8 is placed so as to be positioned.

The molding die 8 comprises an outer die 81 and a core 84 as shown in FIGS. The outer die 81 has a substantially rectangular cylindrical shape, the upper end is open and has a slanted edge inclined outward at the peripheral edge, the lower end is covered with a bottom plate, and the central part is a large opening 82 [ See FIG. 12]. In addition, a number of ventilation holes 83 are provided on two adjacent side surfaces of the outer die 81. The core 84 has a substantially hexahedral shape, and the bottom plate has a large bottom surface projecting to one side. The dimensions of the bottom plate are exactly fit inside the outer die 81, and a large circular hole 85 is provided at the center of the bottom plate. Similarly to the outer die 81, a large number of ventilation holes 86 are provided on two adjacent side surfaces located above the protruding portion of the upper surface of the hexahedron and the bottom plate.

As shown in FIGS. 5 and 6, the XY table 45 is a table which can be independently moved by a motor in an X direction (left and right direction) and a Y direction (front and rear direction) in a horizontal plane. The box 9 is placed on the table 45, and the lower surface of the box is fitted into a fitting portion (not shown) provided on the XY table 45, thereby fixing the box 9. . When supplying the aggregated sponge W to the forming die 8 from the screw conveyor 44b of the fixed amount feeding device 44, the XY table 45 moves freely back and forth and left and right depending on the setting, and the aggregated sponge W is always formed. 8 so as to be evenly distributed. A pressurizing device 40 is provided above the XY table 45.

The pressurizing device 40 has three stages of pressurizing devices 41 and 4 in the front-rear direction (the direction facing the quantitative supply device 44).
2 and 43, and pressurizing members 41b, 42b and 43b attached to the lower ends thereof are connected to air cylinders 41a and 42, respectively.
a, 43a to push the mold 8 downward.
The aggregated spongy bodies W filled therein are pressed and compressed.
The three-stage pressurizing devices 41, 42, and 43 can operate independently of each other.
Moves freely in the front-rear and left-right directions depending on the setting, and the respective forming dies 8 in the box 9 are moved directly below the pressing members 41b, 42b, 43b in each stage, and the aggregated sponge W is compressed.

The box 9 shown by the two-dot chain line in FIG.
The position where the XY table 45 has moved forward or backward most is shown. Similarly, the box 9 can be freely moved in the left-right direction by the XY table, but in this example, as shown in FIG. 6, three molding dies 8 arranged in the box 9 in the left-right direction. Since the three pressing members 41b, 42b, and 43b are respectively arranged so as to be located right above the right side, the pressing device 40 does not need to move in the left-right direction.

The above-described filling machine 4 will be described in more detail. First, the XY table moves forward and the 1
The three forming dies 8 in the row are arranged directly below the screw conveyor 44b in the vertical direction of the fixed amount supplying device 44, and the three forming dies 8 are simultaneously filled with the sponge bodies W in the form of aggregates from the fixed amount supplying device 44. Is done. In this case, since the molding die 8 has a Γ-shaped groove-like portion as viewed from above constituting the side wall of the molded product, the XY table 45 is adapted to the shape of this groove-like portion.
First moves to the right and then moves forward. In this way, as shown in FIG. 12A, the three molds 8 are filled with the spongy bodies W in the form of aggregates up to the height of the upper surface of the core 84, respectively.

Next, the XY table 45 is retracted so that the three molding dies 8 are located immediately below the first-stage pressing member 41b, and as shown in FIG. Due to 41b, the height h _{1 of the} aggregated sponge W in the mold 8 is h ₁ ≒
The first compression is performed to 30 mm. Next, X-
The Y table 45 advances, and as shown in FIG.
After filling the aggregated spongy bodies W to the height of the upper surface of the core 84 again, the XY table 45 retreats, and FIG.
As shown in 2 (c), the height h ₂ of the cavernous W of Dan granular compresses the second so that h ₂ ≒ 65 mm by pressurizing member 41b.

Next, the XY table 45 moves forward again, and as shown in FIG. 12 (c), the entire XY table 45 (the upper surface of the groove-shaped portion and the core 84) extends to the vicinity of the upper end. After the granular sponge W is filled, the XY table 45 is retracted, and the molding die 8 is now positioned directly below the second-stage pressing member 42b, as shown in FIG. Then, the third compression is performed so that the height h _{3 of the} aggregated sponge W becomes h ₃ ≒ 70 mm.

Next, the XY table 45 moves forward, and as shown in FIG. 12D, the entire surface of the outer mold 81 is again filled with the aggregated spongy bodies W up to near the upper end, and then XY. table 45 retracts, turn to come to just below the pressure member 43b of the mold 8 is the third stage, as shown in FIG. 12 (e), the height h ₄ of the cavernous W of crumb Perform the fourth compression (final finishing press) so that h ₄ ≒ 110 mm,
The shape of the molded product S is to be formed.

When the above steps are completed, the XY table 45
Moves forward, this time in the box 9 three molds 8 in the second row
Is the screw conveyor 4 in the vertical direction of the fixed amount feeding device 44.
4b.
The aggregated sponges W are simultaneously filled in the individual molds 8.
Thereafter, filling and compression of the aggregated sponge W into the molding die 8 are performed in the same procedure as in the case of the molding die 8 in the first row described above. When this is completed, the aggregated sponge body is formed on the three dies 8 in the third row by the same procedure as that of the dies 8 in the first and second rows. W
Is completed, and when this is completed, the filling and compression of the aggregated sponge W into all the nine molds 8 in the box 9 are completed.

The first-stage pressing member 41b has a Γ-shaped bottom shape that fits exactly into the Γ-shaped groove-shaped portion in the molding die 8 (strictly speaking, the bottom surface is inverted). As shown in FIGS. 12B and 12C, the surface of the pressing member 41b corresponding to the edge of the surface of the aggregated spongy body W has a trapezoidal cross section. A raised portion 41c is provided. Further, the pressing members 42b and 43b of the second and third stages have a rectangular shape whose bottom surface is just fitted to the outer die 81, and also have the shape shown in FIG.
As shown in FIGS. 2 (d) and (e), the aggregated sponge W
Press members 42b and 43b corresponding to the edges of the surface of
Are provided with raised portions 42c and 43c, respectively. The raised portion 4 in the second-stage pressing member 42b
The cross-sectional shape of 2c is the same trapezoidal shape as that of the first stage, and the cross-sectional shape of the raised portion 43c in the third-stage pressing member 43b is different from that of the first or second stage. It has a shape.

According to the above-described filling step, the aggregated spongy body W is filled into the mold 8 in four separate steps, and the aggregated sponge W filled in the mold 8 after filling is compressed. , Three-dimensional, thick and complex shaped moldings S
Even when the aggregated sponge body W is filled in the molding die 8 for molding, there is no possibility that voids or places with extremely low density are formed inside the molded product S. For this reason, there is no possibility that the molded product S will lose its shape without increasing the density more than necessary.

In the above-mentioned filling step, the aggregated spongy body W is first filled in a portion of the forming die 8 which will become the side wall of the molded product S and compressed, and after this filling and compression is completed, the molded product S In order to fill and compress the portion serving as the bottom wall of the sponge body, it is possible to fill and compress the aggregated spongy body W into the molding die 8 by a simple operation. That is, according to the filling step, for example, the aggregated sponge W
To form the bottom wall of the molded article S, and then attach the core 84, and then again perform the filling and compression of the aggregated spongy bodies W to form the side wall of the molded article S. There is no need to perform complicated operations, and therefore,
The filling and compression of the aggregated spongy bodies W into the inside can be performed efficiently.

According to the filling machine 4, the pressing device 40 is provided with three-stage pressing members 41 b, 42 b, and 43 b for compressing the aggregated sponge W filled in the mold 8. Since the protrusions 41c, 42c, 43c are provided on the surfaces of the pressing members 41b, 42b, 43b corresponding to the edges of the surface of the aggregated sponge W in the molding die 8, first, 1
By the stepped portions and the second-stage raised portions 41c and 42c, the surface portion of the molded product S can be more strongly compressed than the internal portion thereof, whereby the molded product S can be compressed without loss of elasticity. The surface of S can be made dense and clean. In addition, the corners of the surface of the molded product S can be chamfered by the third raised portion 43c, whereby the appearance of the molded product S as a product can be beautifully displayed.

The pressurizing device 40 comprises three-stage pressurizing devices 41, 42, and 43.
Has a long pressurizing stroke, and the pressurizing devices 42 and 43 of the second and third stages have short pressurizing strokes, respectively. Spongy body W fully aggregated up to the deep part
Can be compressed, and the second-stage and third-stage pressurizing devices 42 and 43 efficiently separate the aggregated sponge bodies W on the upper part of the molding die 8 serving as the bottom wall of the molded product S, respectively. Can be compressed.

A heater 5 is provided next to the filling machine 4 including the above-described fixed-rate supply device 44, XY table 45, and pressurizing device 40. After the filling and compression of the aggregated spongy bodies W into the nine molding dies 8 by the filling machine 4 are completed, the box body 9 is provided with protrusions protruding on both side walls of the box body 9 at the upper part of the manufacturing apparatus 1. Is lifted by being locked by a locking tool of a small crane (not shown) provided on the heater 5, and is delivered to a walking beam (not shown) provided on the heater 5 side. The walking beam is a transfer device including a moving gantry and a fixed gantry. The moving gantry performs a periodic motion of ascending, advancing, descending, and retreating, thereby transferring an object placed on the walking beam. The box 9 is transferred into the heater 5 by the walking beam.

As shown in FIG. 13, the heater 5 has a quadrangular pyramid-shaped bottom cover 51 opened upward below the transfer section of the box body 9 and a flat plate-shaped top cover 52 above. A steam supply pipe 53 is connected to a central portion of the bottom lid 51, and an exhaust pipe 54 penetrating vertically is provided in the top lid 52. The upper lid 52 is moved up and down by an air cylinder 66 integrally with upper lids 61b and 62b in two-stage drying units 61 and 62 of the dryer 6 described below.

When the box 9 is placed on the bottom lid 51 of the heater 5 by the walking beam, the upper lid 52 is lowered, and the upper and lower open surfaces of the box 9 are sealed. afterwards,
The steam is supplied from the steam supply pipe 53, and the gas inside is discharged from the exhaust pipe 54. The heater 5 passes steam of about 100 to 200 ° C. through the box 9 for about 3 to 10 minutes to gelatinize the glue material attached to the aggregated sponge W in the mold 8. The aggregated sponges W are adhered to each other. Thereafter, the box 9 is transferred to the next dryer 6 again by the walking beam.

The dryer 6 includes a drying unit 6 provided in two stages.
1, 62, both of which have a similar structure. That is, there is a quadrangular pyramid-shaped bottom lid 61a, 62a opened upward below the transfer part of the box body 9 and a quadrangular pyramid-shaped pyramidal bottom opened upward symmetrically with the bottom lid 61a, 62a. It has upper lids 61b and 62b. The first-stage drying unit 61 (the one in which the box body 9 is transferred from the heater 5) is provided at the center of the upper lid 61 b by an air blower 63 and a heat exchanger 6.
4, a hot air supply pipe 61c for supplying hot air is connected (see FIG. 1), and a suction pipe 61d for sucking air in the dryer 6 by a suction blower 65 is connected to the center of the bottom cover 61a. I have. On the other hand, the second-stage drying unit 62 (the one in which the box 9 is transferred after the first-stage drying unit 61) is
The hot air supply pipe 62c is connected to the center of the bottom lid 62a, and the suction pipe 62d is connected to the center of the top lid 62b, opposite to the drying section 61 of the first stage.

When the box 9 is placed on the bottom lid 61a of the first-stage drying unit 61 of the dryer 6 by the walking beam, the upper lid 61b is lowered to open the upper and lower open surfaces of the box 9. Are sealed respectively. Thereafter, the hot air is sent from above to below in the box 9, and at the same time, the air in the box 9 is sucked from above to below by the suction blower 65.

The box body 9 that has been dried in the first drying section 61 of the dryer 6 is transferred again to the second drying section 62 of the dryer 6 by the walking beam, and is then transferred to the second drying section 62 of the dryer 6. Drying is performed in the same manner as in the drying unit 61. However, in the case of the second-stage drying unit 62, the first-stage drying unit 61
Unlike the case (1), the hot air is sent upward from below in the box 9, and at the same time, the air in the box 9 is sucked upward from below by the suction blower 65.

Therefore, according to the dryer 6, the molding die 8 in the box 9 to which the first-stage and second-stage drying units 61 and 62 are successively transferred is successively heated from both directions. Will pass. In addition, since the outer die 81 and the core 84 of the molding die 8 use a permeable member having a large number of ventilation holes 83 and 86, respectively, the ventilation holes 83 and 86 are used.
Hot air passes through the aggregated spongy body W in the molding die 8 from both the upper and lower directions through 86. Therefore, even with a molded product S such as a corner pad having a three-dimensional, thick, and complicated shape, there is no danger that only one side (the inflow side of hot air) is dried well and the other side is not dried. Therefore, the entire molded product S can be dried uniformly.

Next to the dryer 6, a release machine 7 is provided. In the release machine 7, nine release bars (not shown) are arranged below the transfer section of the box 9 so as to match the positions of the nine holes on the bottom surface of the box 9, and The mold rod moves up and down by an air cylinder. When the box 9 is transferred to the release machine 7 by the walking beam, the release rod rises and the core 84 of the outer die 81 in the molding die 8 is moved.
, And the molded product S is pushed out of the box body 9 together with the core 84, whereby the molded product S is released.

Note that the present invention is not limited to the above example. For example, the filling step may operate in a different order from that described above. That is, the first filling of the aggregated sponge bodies into the molds arranged in the box is performed in the first row, the second row, and the third row.
The first compression of the aggregated sponge body in the mold is performed sequentially in the first row, the second row, and the third row, and the same procedure is performed. Second time, 3
The fourth and fourth filling and compression may be performed.

In the filling step of the present invention, the aggregated sponge in the mold does not have to be compressed each time the mold is filled with the aggregated sponge. That is, the compression of the aggregated spongy body between fillings may be partially omitted. For example, the number of times of filling may be three and the number of times of compression may be two. In this case, the compression is not performed for one of two fillings. Further, the shape of the molding die may be changed as appropriate so that the molded product has a cylindrical shape, a square shape, or a groove shape.

[0041]

According to the method for manufacturing recycled paper and the apparatus for manufacturing recycled paper according to the present invention, even when a three-dimensional, thick, and complicated shaped product is manufactured, the molded product is kept inside the formed product. There are no voids or places with extremely small densities, the surface is clean, and the effect of producing a molded article having an appropriate elasticity is exhibited.
It is possible to provide a high-quality molded product for the application to the market.

[Brief description of the drawings]

FIG. 1 is a plan view showing the overall arrangement of an example of a regenerated product manufacturing apparatus according to the present invention.

FIG. 2 is a front view showing a defibrator to a granulator of the manufacturing apparatus in FIG.

FIG. 3 is a front view showing a granulating machine to a release machine of the manufacturing apparatus of FIG.

FIG. 4 is a perspective view showing a granulating machine to a filling machine of the manufacturing apparatus of FIG.

FIG. 5 is a side view showing a filling machine of the manufacturing apparatus of FIG.

FIG. 6 is a front view showing a filling machine of the manufacturing apparatus of FIG.

FIG. 7 is a perspective view showing an example of a box used in the manufacturing apparatus of FIG.

8 is a perspective view showing a state in which a corner pad as an example of a molded product manufactured by the manufacturing apparatus of FIG. 1 is used as a cushioning material.

9A and 9B are perspective views showing the molded product of FIG. 8, wherein FIG. 9A shows a state in which the bottom wall is down, and FIG. 9B shows a state in which the bottom wall is up.

FIG. 10 is a perspective view showing an outer die of a molding die for molding the molded product of FIG. 9;

FIG. 11 is a perspective view showing a core of the molding die of FIG. 10;
(A) is the figure seen from the top side, (b) is the figure seen from the bottom side.

12 is a cross-sectional view illustrating a step of filling and compressing the aggregated sponge in the mold in the filling machine of the manufacturing apparatus in FIG. 1, wherein (a) is a state in which the aggregated sponge is first filled; ,
(B) is a state in which the aggregated spongy body is compressed for the first time and then the aggregated sponge body is filled (second time), and (c) is a state in which the aggregated spongy body is compressed for the second time and subsequent aggregation. A state in which a granular spongy body has been filled (the third time), and (d) shows a third compaction of the aggregated spongy body and a final filling of the aggregated spongy body (the fourth time).
(E) shows the compression of the last aggregated spongy body (4).
2) is shown.

FIG. 13 is a front view showing a heater, a dryer, and a release machine of the manufacturing apparatus of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Recycled paper manufacturing device (whole) 2 Defibrillator 3 Granulator 31 Storage tank 32 Discharge port 4 Filler 40 Pressurizing device 41-43 First-third-stage pressing device 41b-43b Pressing member 41c to 43c Raised portion 44 Quantitative supply device 45 XY table 5 Heater 53 Steam supply pipe 54 Exhaust pipe 6 Dryer 61, 62 First-stage, second-stage drying section 61c, 62c Hot-air supply pipe 61d, 62d Suction Pipe 7 Release machine 8 Mold 83,86 Vent 9 Box W Aggregated sponge S Molded product

Claims (4)

[Claims] 1. A fibrillation step of cutting and pulverizing waste paper to form a floc, and supplying a predetermined amount of water and a glue material while stirring the floc processed in the fibrillation step to form a plurality of groups. A granulation step of processing into a granular sponge body, a filling step of filling the aggregated sponge body into a forming die and compressing the same with a pressurizing device, and steaming into the forming mold filled with the aggregated spongy body. A heating step of gelatinizing the paste material and bonding the aggregated sponge bodies in the mold to each other to form a molded article; and a heating step in which the aggregated sponge bodies are adhered to each other by steam. In the method for manufacturing a recycled paper waste product, comprising: a drying step of drying the aggregated spongy body inside by passing hot air through the mold, and a release step of extracting the dried molded product from a mold. Separately fill the mold with aggregated sponge bodies, and after filling Reproducing material producing method of the used paper, characterized by compressing the spongy body of the filled crumb. 2. In the filling step, when forming a molded article having a bottom wall and a side wall, first, an aggregated sponge body is filled into a portion of the molding die to be a side wall of the molded article and compressed.
2. The method according to claim 1, wherein after the filling and the compression are completed, a portion serving as a bottom wall of the molded product is filled and compressed. 3. A defibrillator for cutting and pulverizing used paper into a flocculent material, and supplying a predetermined amount of water and glue material while stirring the flocculent material supplied from the defibrillator to form a large number of aggregates. A granulating machine for processing into sponge bodies, a filling machine for filling the aggregated sponge bodies into a molding die and compressing them with a pressurizing device, and steam in the molding die filled with the aggregated sponge bodies. And a heater for forming the molded product by adhering the glue material to each other and gluing the aggregated sponge bodies in the mold to each other to form a molded product; and in the mold in which the aggregated sponge bodies are adhered to each other by steam. A dryer for drying the aggregated sponge body inside through hot air, and a waste paper remanufactured product manufacturing device including a release machine for extracting the dried molded product from a molding die, wherein the pressurizing device includes: A pressurizing member is provided to compress the aggregated spongy bodies filled in the mold, and the aggregated Paper of recyclate manufacturing apparatus characterized in that a raised portion on the surface of the corresponding pressure member to the edge of the surface of the sponge body. 4. The pressurizing device comprises a three-stage pressurizing device, the first-stage pressurizing device has a long pressurizing stroke, and the second-stage and third-stage pressurizing devices each have a pressurizing stroke. 4. The apparatus according to claim 3, wherein the pressure stroke is short.