JP2001353319A - Production method for component member of game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a production of a game machine at a lower cost with a strength necessary for the game machine so as to allow recycling by utilizing paper such as used newspapers and magazines. SOLUTION: In the method of producing component members of a game machine, there are a dewatering process in which a molding die is filled with a fiber-mixed dispersion solution with at least paper fibers and chemical fibers mixed and dispersed in water and the fiber-mixed dispersion solution is dewatered by pressing to obtain a dewatered press molded product and a drying process to dry the dewatered press molded products.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a game machine component, and more particularly to a method for manufacturing a game machine component made of paper fiber and chemical fiber.

[0002]

2. Description of the Related Art In recent years, there has been a shortage of waste disposal sites,
Problems such as the occurrence of environmental pollution due to waste are increasing, and reuse of waste is required from the viewpoint of resource saving. Furthermore, recycling is also required for products that have been once made into waste products.

[0003] A gaming machine in which an outer frame or the like of a gaming machine is formed using waste paper has been proposed (Japanese Patent Application Laid-Open No. 7-1995).
No. 116306). In the case of using the used paper, the outer frame and the like are formed by mixing the used paper fiber with an adhesive or a synthetic resin.

[0004]

However, as described above, in the case of a game machine using waste paper, the main purpose is to reduce the cost of the game machine and does not consider recycling of the game machine.
Recovered paper fibers are firmly bonded with adhesive or synthetic resin. Therefore, the gaming machine once formed using the waste paper fiber, even if it is going to be defibrated to the fiber stage for the purpose of recycling, the adhesive or synthetic resin binding the waste paper fiber disturbs only the fiber. It is difficult to extract efficiently,
I had to discard it after all. As a result, the waste problem remained unresolved.

[0005] Also, the components constituting the game board and the frame portion of the game machine need to have a predetermined strength. If the strength is insufficient, the game machine cannot be used. For example, in pachinko machines, nail preparation of the game board is performed every day, and each time a large force is applied to the nail hole portion of the game board, if the strength of the game board is insufficient, the nail preparation is performed. There is a problem that the nail hole is widened and the nail is loosened or pulled out. In addition, the outer frame and the inner frame are required to have sufficient strength to support the gaming table, and the pachinko ball storage plate is not only for holding the ball, but also for the player due to excitement during the game. It is necessary to have a strength that can withstand a certain degree such as beating.

However, when a gaming machine is formed by molding a dry fiber by pressing and fixing the shape by a so-called dry method, the paper fibers are not sufficiently mixed with each other. Since the peel strength between fibers is weak, the nails are not easy to loosen due to repeated nail preparation.They do not have the strength required for pachinko machines, and in order to strengthen the strength, adhesives with high viscosity are inevitable. It had to be molded by adding a synthetic resin, and it was difficult to efficiently extract only the fibers during recycling.

[0007] Further, a method of press-forming by softening paper fibers with high-temperature and high-pressure steam is also conceivable. However, even with this method, the paper fibers are not sufficiently mixed, and insufficient bonding strength of the fibers cannot be eliminated. Steam can be too hot and damage the fibers, thereby reducing strength.

Further, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-116305, a method has been proposed in which wood chips are mixed and adhered to plant fibers to increase the strength. However, the wood chips are difficult to disperse uniformly and have a certain strength and hardness. Is not obtained, and the strength varies between the portion where the wood chips are present and the portion where the wood chips are not present, making it difficult to automatically nail or prepare the nails with a machine. Furthermore, even in a gaming machine formed by mixing and bonding wood chips to the plant fibers, it is not easy to efficiently extract only the fibers at the time of recycling, and it is difficult to repeat the recycling.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and uses a paper fiber made of waste paper fiber or the like to provide an inexpensive and recyclable game machine having the necessary strength for a game machine component. A method of manufacturing a member is provided.

[0010]

The invention according to claim 1 is
In the method of manufacturing the components of the gaming machine, at least paper fiber and chemical fiber are mixed and dispersed in water to fill a mixed fiber dispersion in a mold, and the filled mixed fiber dispersion is dehydrated by pressing. The present invention relates to a method for manufacturing a gaming machine component, comprising: a dehydration press step of obtaining a dehydration press molded article; and a drying step of drying the dehydration press molded article.

The invention according to claim 2 is characterized in that the paper fiber in claim 1 is waste paper fiber. The invention according to claim 3 is characterized in that, in claim 1 or 2, after the raw material preparation step of preparing a mixed fiber dispersion by disintegrating paper fibers and chemical fibers in water and mixing and dispersing them, a dewatering press step is performed. It is characterized by the following.

According to a fourth aspect of the present invention, in the raw material preparation step of the third aspect, after the paper part of the old magazines is cut and separated from the page sticking part, the paper part is mixed with water to disintegrate the waste paper fiber, It is characterized by being mixed and dispersed with the fiber.

The invention according to claim 5 is the invention according to claim 3 or 4.
Wherein a paper fiber dispersion in which paper fibers are dispersed in water and a chemical fiber dispersion in which chemical fibers are dispersed in water are mixed in a raw material preparation step to prepare a mixed fiber dispersion.

The invention according to claim 6 is the invention according to claims 1 to 5
In any one of the above, a molding property improving agent is added to the mixed fiber dispersion. The invention according to claim 7 is the method of manufacturing a gaming machine component according to any one of claims 1 to 6, wherein the drying step includes primary drying and subsequent secondary drying.

The invention according to claim 8 is characterized in that, in the primary drying according to claim 7, drying is performed while a plurality of dewatered press-formed products are set up and conveyed. The invention according to claim 9 is characterized in that the secondary drying in claim 7 or 8 is performed in a multi-stage system in which a plurality of primary dried products are vertically stacked and hot-pressed.

Further, a tenth aspect of the present invention is characterized in that, in any one of the first to ninth aspects, a step of cutting the dried product is performed after the drying step.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing an embodiment of a gaming machine having a component manufactured by the manufacturing method of the present invention, and FIG. 2 is a rear view of the gaming board of FIG. FIG. 3 is a block diagram showing a manufacturing process in a method of manufacturing a gaming machine component according to an embodiment of the present invention, FIG. 4 is a schematic diagram showing a raw material preparation process, FIG. 6 is a schematic diagram of a primary drying process, FIG. 7 is a schematic diagram of a secondary drying process, FIG. 8 is a schematic plan view of FIG. 7, FIG. 9 is a schematic diagram of a cutting process, FIG.
0 is a view schematically showing a wastewater treatment apparatus.

A gaming machine 10 shown in FIG. 1 has a component obtained by the method of manufacturing a component of a gaming machine according to the present invention. At least a part of the component is obtained by mixing at least chemical fiber with paper fiber. The mixed fiber dispersion liquid is formed by dehydration press molding and dried to form a mixed fiber molded article. Conventionally, as a constituent member composed of a molded product of the mixed fiber,
It is a strength holding component member made of wood, resin, or the like. In particular, the game board 11, the gaming machine frame 12, the ball tray 1
It is preferable to use at least one member selected from among the three members. In this embodiment, the game board 11 and the game machine frame 12 are formed of a molded product of the mixed fiber. FIG. 2 shows the back of the game board 11.

The paper fiber may be either new paper fiber obtained from new paper only, or paper once on the market, that is, fiber containing only waste paper fiber obtained from waste paper, or fiber containing both. It is preferable to use only paper fibers containing fibers, preferably used paper fibers, because not only a less expensive game machine can be obtained, but also the recycling rate of waste is increased. Used paper fibers are disintegrated by soaking old magazines such as old newspapers, old magazines, advertisements, waste copy paper, etc. in water (including hot water), as will be described in detail later in the method of manufacturing a gaming machine component. Consists of fibers.

Chemical fibers are used to increase the strength of molded articles, and include recycled fibers, semi-synthetic fibers, synthetic fibers,
From the inorganic fibers, chemical fibers that are easily compatible with water, have high strength, are excellent in abrasion resistance, chemical resistance, and weather resistance, and are easily dried even when wet are selected. Examples include polyester fibers, polypropylene fibers, polyamide fibers, poly-meta-phenylene terephthalamide fibers, glass fibers, ceramic fibers and the like. Further, the chemical fiber having heat resistance, flame resistance and insulation properties is suitable for a game machine using electricity such as a pachinko game machine.

Further, the corresponding component of the gaming machine is provided with a dewatering press of the mixed fiber dispersion in which the paper fibers (including waste paper fibers) and the chemical fibers are dispersed in water, as will be described in detail later. It is formed by drying. After drying, it may be cut as needed to obtain a desired shape. Furthermore, in the case of decoration such as a pattern on the surface, such as a game board, a decorative sheet material is stuck on the surface of the mixed fiber molded product to form a gaming machine.

In the gaming machine having the above structure, paper products such as old magazines can be reused and effectively used.
When the gaming machine is no longer used, the bonding between the fibers is made by the entanglement between the fibers, which is different from the one that cannot be disintegrated due to the fusion of the adhesive or resin.
A new gaming machine can be manufactured by disaggregating again to the fiber stage, and has excellent recyclability.

Next, an embodiment of a method for manufacturing a gaming machine component according to the present invention will be described. The manufacturing method according to the present invention relates to a method for manufacturing components of a gaming machine such as the gaming board 11, the gaming machine frame 12, the ball tray 13, and the like. One embodiment of the manufacturing method includes a raw material preparation step, a dewatering press step, and a drying step, as shown in FIG.
Further, this embodiment includes a cutting step.

In the raw material preparation step, as shown in FIG. 4, a mixed fiber dispersion in which at least chemical fibers are mixed and dispersed in water with paper fibers is prepared. In this example, as described in detail below, a paper fiber dispersion and a chemical fiber dispersion were separately prepared, temporarily stored in their respective storage tanks, introduced into a mixing device at a required ratio, and mixed. To obtain a mixed fiber dispersion.

First, the preparation of a paper fiber dispersion will be described.
As a raw material of the paper fiber, new paper or used paper is used. However, it is preferable to use the used paper including the used paper or only the used paper from the viewpoint of the reuse of the waste and the economic efficiency.
Hereinafter, a case in which used paper made of old magazines such as comic books, telephone directories, and weekly magazines is mainly used will be described. The page sticking portion located on the back portion of the old magazines is cut and separated from the page portion by a cutting machine to remove glue, stapler needles and the like, and a paper portion corresponding to the page portion is selected (S1). The glue and stapler needle are not only a hindrance to producing a good molded product from waste paper fiber, but also make cleaning of the production apparatus cumbersome, so that they are selected in advance from the page portion. At that time, in order to remove the glue and the needle reliably, it is preferable to cut the old magazines at a predetermined width, usually about 2 cm, from the back. The cutting and separating are performed by arranging magazines on an automatic feeder such as a conveyor so that a page sticking (adhering) side is in the same direction. In order to increase the efficiency of the work, it is performed continuously by passing through the garbage section so that the page sticking section with glue or needle is separated from the page section and automatically sent to the garbage storage section. Preferred from the point.
The cut pieces of waste paper with glue or needles can also be used as fuel in a subsequent drying step.

When new paper is used, the cutting and sorting (S1) is not required. When new paper and old magazines are used, the following weighing is performed after the cutting and sorting (S1) is performed on old magazines, and the cutting and sorting (S1) is performed on new paper. Without being performed, the next weighing is performed.

The paper section is weighed in a required amount (S2), put into a mixer called a pulper together with a required amount of water, mixed, and defibrated (S3). Water is supplied from a water tank (S4). The ratio of paper and water is determined so that the paper fibers are easily disintegrated.
It is preferable that the weight percent of the paper is about 0.5 to 15 weight percent based on the weight percent. As an example, a case where four pachinko game boards are manufactured is shown.
Inject 10508 liters of water for 5 kg. Of course, the proportion of paper is not limited to the above range. Due to the mixing in the pulper, the paper is loosened into a fibrous form and becomes a porridge (porridge) -like paper fiber dispersion. The paper fiber dispersion is temporarily stored in the paper fiber dispersion storage tank (S5). The water for disintegrating the paper fibers may be room temperature, but if it is hot water of about 30 ° C. to 100 ° C., the paper will be loosened smoothly into fibers. However, in the case of using hot water, the higher the temperature of the hot water, the more easily the printing ink on the used paper oozes out (bleeding), so that there is an annoyance that subsequent water treatment is required.

Further, since the paper fiber dispersion liquid contains unnecessary substances such as glue, needles, dust, and the like which are erroneously mixed in the cutting and sorting, the paper fiber dispersion liquid is stored before being stored in the paper fiber storage tank (S5). It is preferable that unnecessary substances are removed by passing through a separator, a cleaner, a screen, or the like (S3a). In particular, in the case where a component made of a molded product of paper fiber and chemical fiber once used in a game machine, for example, a game board of the game machine of the present invention is reused, decorative sheets, nails, plastics, etc. Since many members are attached, and it is not easy to completely remove those members in advance, there is a possibility that the members may be mixed into the paper fiber dispersion liquid, and unnecessary materials are removed by the separator or the like (S3a).
Becomes more important.

The chemical fibers are also measured (S6),
It is put into another pulper (mixer) together with the required amount of water supplied from the water tank (S4) and mixed, whereby it blends into water and disintegrates and disperses (S7) to become a chemical fiber dispersion. The chemical fiber dispersion is temporarily stored in the chemical fiber dispersion storage tank (S8). One pulper may be used alternately for waste paper fiber and chemical fiber, alternately with the target fiber. In addition, the thickness of the chemical fiber is 2
5 denier and the length is preferably about 3 to 6 mm. In this example, a polyester fiber having a thickness of 3 denier and a length of 5 mm was used. If the length exceeds 6 mm, the fibers are easily entangled,
It becomes a dumpling state, and the fibers cannot be easily dispersed. When the ratio of the chemical fiber is set to 0.1 to 5% by weight with respect to the total of 100% by weight of the chemical fiber and water, the chemical fiber is well dispersed in water. For example, in an example of forming four game boards, 81 kg of chemical fibers are
Disperse in liters. Of course, the ratio of chemical fibers is not limited to the above range.

The paper fiber dispersion liquid and the chemical fiber dispersion liquid are introduced into the mixing device from the respective storage tanks by a predetermined amount (S9), and are mixed there, and the used paper fiber and the chemical fiber are uniformly dispersed in water. A fiber dispersion is produced. At that time, paper fibers are already dispersed in the paper fiber dispersion, and chemical fibers are dispersed in the chemical fiber dispersion, and a mixed fiber dispersion is produced by mixing the dispersions. And the chemical fiber dispersion can be set freely, and the strength of the obtained product can be set to a desired value. Generally, paper fibers recycled many times cause a decrease in strength. Therefore, by changing the mixing ratio of the paper fiber dispersion and the chemical fiber dispersion to increase the ratio of the chemical fibers, the strength uniformity of the product is maintained. Can be easily performed.

When the concentration of the fiber component (paper fiber and chemical fiber) in the mixed fiber dispersion is 0.5 to 7% by weight, both fibers are easily dispersed well in water, which is more preferable. The ratio of paper fiber to chemical fiber is 9: 1 by weight.
~ 7: 3 is preferred. If the chemical fiber content is less than 10%, a product with sufficient strength cannot be obtained. In this example, the paper fibers 32
81 kg of chemical fiber and total water of 2392 for 5 kg
The weight concentration of 7 liters and the fiber content is about 1.7%. Of course, the percentage of fiber, paper fiber and chemical fiber,
It is not necessarily limited to the above range.

The reason why the paper fiber dispersion liquid and the chemical fiber dispersion liquid are separately prepared and temporarily stored in the storage tank as described above is that the ratio of the paper fiber and the chemical fiber dispersed well in water is different. In general, chemical fibers are harder to disperse in water than paper fibers. Therefore, a lower fiber concentration in water than in the case of paper fibers results in better fiber dispersion. Therefore, a paper fiber and a chemical fiber are separately mixed with water to prepare a dispersion, and then a mixture of the two dispersions at a predetermined ratio can obtain a mixed fiber dispersion in which the paper fiber and the chemical fiber are well dispersed. .

The mixed fiber dispersion of the mixing device may further include a paper-strengthening agent or a fixing agent which improves the dewatering property in the subsequent dewatering press step to increase the hardness and strength (paper strength) of the product; An agent for improving the formability, such as an agent or an antifoaming agent, is appropriately added in an appropriate amount. For example, if a paper strength enhancer such as polyethylene oxide or synthetic glue is selected, the fibers can be dispersed in water to prevent sedimentation, and the viscosity of the mixed fiber dispersion increases. Dehydration from the mesh portion of the mold becomes slower, fibers are uniformly deposited on the mesh, a product having a uniform strength can be obtained, and strength and hardness can be increased. Other examples of such a paper strength enhancer include an acrylic copolymer resin emulsion, a styrene-butadiene copolymer, a polyamide epoxy-based, a polyacrylamide-based, corn starch, and carboxymethyl cellulose.

The fixing agent functions to facilitate the fixing of the paper strength enhancer to the paper fibers. Examples of the fixing agent include ammonium sulfate and polyacrylamide. The water-proofing agent is for imparting water repellency (the property of repelling water) to the product, and can be washed with a game board or the like. Examples of the waterproofing agent include a polyamine-based resin and a polyamide-based resin. The antifoaming agent makes it difficult to generate bubbles when stirring the fibers with a mixing device or the like. When bubbles are generated during stirring of the fibers, the bubbles adhere to the fibers and float on the water surface together with the bubbles, making it difficult to uniformly disperse the fibers. Non-ionic activators can be mentioned as the antifoaming agent. In addition, the medicine added to the mixed fiber dispersion is not limited to the above. Further, the paper fiber dispersion liquid and the chemical fiber dispersion liquid are mixed without adding the above-mentioned chemicals, and the mixed fiber dispersion liquid is temporarily stored in one or two or more different storage tanks. The medicine may be added to the next step, or a mixing device for mixing with the medicine may be provided on the way to the next step.

The mixed fiber dispersion is filtered to a required fiber concentration and condensed (S10). The final fiber concentration at that time is preferably 0.5 to 7% by weight. In this example, filtration was performed until the residual moisture reached 13127 liters, and the fiber content was 4
The fiber concentration was 3.0% by weight because it was unchanged at 06 kg.

Next, a dewatering press step is performed. In this dehydration press step, as shown in FIG. 5, a required amount of the mixed fiber dispersion is charged into a molding die S12 of a cold press (dehydration molding press) S11, pressed from above, and water is squeezed out. By this dehydrating press step, most of the water in the mixed fiber dispersion is removed. In this example, the water is reduced by about 40%. The pressing pressure is preferably from 10 t to 1000 t. This is because if the amount is less than 10 tons, moisture is not sufficiently removed. In this example, it is 300t.

In the molding die S12, a mesh is provided on the bottom surface of an appropriately shaped frame, and the moisture of the mixed fiber dispersion filled in the molding die is squeezed downward through the mesh by a press. Fiber is deposited on the surface. Further, in this embodiment, a lower vacuum S14a is provided below the net.
4a is operated to suck out moisture, and at the same time, moisture is squeezed out by a press. The water overflowing on and around the press plate S14 is sucked by the upper vacuum S14b, thereby removing water droplets around the mold S12 and preventing the water once squeezed from returning to the inside of the press-formed product. . Note that the press may be started at a time when the lower vacuum S14a has sucked water to some extent, but in this case, the production efficiency is slightly reduced.

The mesh size of the mold S12 is preferably from 60 mesh to 80 mesh / in ² . If the mesh size is less than 60 mesh, the mesh is too coarse, and the fiber easily comes out together with water. If the mesh size is larger than 80 mesh, the fiber presses and closes the mesh, so that the time required for moisture to escape increases, and production efficiency increases. Decrease. The shape and size of the frame of the molding die S12 are determined according to the type, size and number of products. For example, the same size and shape as the product,
The size and the like are determined as a plurality of products by subsequent cutting. In this example, a frame body capable of forming a panel having a size of four game boards is used. Reference symbol S13 is a mixed fiber dispersion liquid injection nozzle, S15 is a conveyor device, S
Reference numeral 15a denotes a cleaning nozzle for cleaning fibers and the like attached to the conveyor.

Further, the water squeezed out of the mixed fiber dispersion by the cold press machine S11 passes through the lower vacuum S14a, is sent to a wastewater treatment device shown in FIG. 10, and is processed so that it can be reused. . Further, the water sucked by the upper vacuum S14b is also sent to the wastewater treatment device and processed so that it can be reused.

In the dewatering press molded article 21 formed into a flat plate by the dehydrating pressing step, the paper fibers and the chemical fibers mixed and dispersed in the water are removed in a state where most of the water is removed by pressing. Thus, they are entangled with each other. The dewatering press molded product 21 is a suction moving device S
At 16, it is adsorbed and carried to the next drying step to further remove moisture.

The drying step includes a primary drying step and a secondary drying step. In the primary drying step, as shown in FIG. 6, the dewatering press-formed product 21 is dried by a drying device called a wicket dryer S17. The wicket dryer S17 is provided with a rotating belt-shaped member S19 in which an upper side rotates forward of the production line and a lower side rotates rearward of the production line in the drying furnace S18. The inclined support members S20 are erected at predetermined intervals. Then, the dewatering press-formed product 21 conveyed from the dehydrating press step is received by the support member S20, and is moved forward in the drying furnace S18 while being supported upright so as to lean against the front surface of the support member S20. Hot air device (not shown) of drying furnace S18 inside
Drying with hot air.

In the wicket dryer S17, since a plurality of dewatered press-formed products 21 are dried while being continuously conveyed forward in a state where they are erected at predetermined intervals, efficient drying can be performed. it can. further,
If the support member S20 is formed of a plurality of parallel rod members, lattice members, mesh members, or the like, hot air also hits the back surface of the dewatered press-formed product 21 conveyed by the wicket dryer S17 to efficiently dry. It can be performed.
Further, in the primary drying step of this example, in order to increase the drying efficiency, the steam generated by the wicket dryer S17 is suctioned by the suction device and sent to the wastewater treatment device.

The temperature in the furnace is preferably 100 to 200 ° C. If the temperature is lower than 100 ° C., the drying efficiency is poor. If the temperature exceeds 200 ° C., the dewatered press-formed product 21 may be burned during drying. Since the drying time varies depending on the thickness of the dewatering press-formed product 21 and the like, the conveyor speed is adjusted to be an optimum time according to the thickness of the dewatering press-formed product, the molding efficiency, and the like. In general, when the temperature in the furnace is constant, if the dewatered press-formed product 21 has a large thickness, the passage time is lengthened, and if the press-formed product 21 is a thin one, the passage time in the furnace is shortened. I do. Further, if the thickness of the press-formed product 21 is constant, if the temperature in the furnace is increased, the passage time in the furnace can be shortened, and the molding efficiency can be increased.

The primary dried product 22 obtained in the primary drying step is conveyed to the secondary drying step by the conveyor S21. In this example, FIG. 7 showing the secondary drying step and FIG.
The transfer device S2 in which the primary dried product 22 can move up and down as shown in FIG.
2 is supplied. The primary dry goods receiving shelf S22a of this transfer device S22 moves up and down, and is a multi-stage heating press S
The primary dried products 22 are received by the number of stages of 24 (S25). Of course, the primary dried product receiving shelf S22a and the number of primary dried product received are not limited thereto. Also, as in this example, a multi-stage heating press S2
When there are a plurality of S4 and S25, the transfer device S22 can be moved. In this example, as understood from FIG. 8, two multi-stage heating presses S24 and S25 are arranged in parallel on the right and left sides orthogonal to the direction of the production line.
The transfer device S22 can be moved to the left and right sides by wheels S22c (shown in FIG. 7) on a rail S22b laid on the floor, and the transfer device S22 is transferred to the left and right multi-stage heating presses S24 and S25. The device S22 is set to a corresponding position.

The transfer device S22 is connected to the conveyor S2.
After receiving the primary dried product 22 from 1, it moves to the left (or right) orthogonal to the production line direction and moves to the position facing the left (right) multistage heating press S24 (S25). Then, when the primary dried product receiving shelf S22a starts moving up and down and reaches an appropriate position, the transfer device S22
The primary dried product is placed on the hot plate S26 of each stage of the multi-stage heating press S24 (S25) by the extruder S23 provided in the multi-stage heating press S2 (S25).
4 (S25), the heating press starts.

The multi-stage heating press S24 (S25)
Is that the hot plates S26 approach and separate from each other, and when approaching, the hot plates S2
The primary dried product 22 is pressed between the six.
The temperature of the hot plate S26 is preferably 100 to 200 ° C., and the press pressure is preferably 1000 t to 3000 t. 1000t
Below, there is a possibility that the primary dried product cannot be pressed until it has the required strength.

As described above, the primary dried product 2 is placed on the hot plate S26 of the left (right) multistage heating press S24 (S25).
After the loading device S22 has finished loading, the conveyor S22
Return to the front position 21. The transfer device S22 is a multi-stage heating press S24 left (right) from the position of the conveyor S21.
After the movement to (S25) is started, the driving of the conveyor S21 is stopped so that the primary dried product 22 does not fall from the tip of the conveyor S21 until the conveyor S21 returns to the position of the conveyor S21 again.

The transfer device S22, which has returned to the front of the conveyor S21, receives the primary dried product 22 again in the primary dried product receiving shelf S22a by resuming the driving of the conveyor S21, and then, on the right side (left side) opposite to the above. ) Side,
In the same manner as described above, another multi-stage heating press S25 (S2
After the primary dried product 22 is placed on the hot plate S26 in 4), it returns to the position in front of the conveyor S21 again. The right (left) multi-stage heating press S25 (S24) in which the primary dried product 22 is placed on the hot plate S26 performs hot pressing.

The right (left) multistage heating press S25
While the primary dried product 22 is placed in (S24), the heating press ends in the left (right) multi-stage heating press S24 (S25), and the multi-stage heating press S24 (S2)
5) By the extruder S27 provided at each stage,
The dried product (secondarily dried product) 23 is dropped on the lifter S28. Further, the primary dried product 22 is placed again on each stage of the multi-stage heating press S24 (S25) in which all the dried products 23 are dropped on the lifter S28, and another multi-stage heating is performed in the meantime. Press machine S25 (S24)
, The dried product 23 is dropped on the lifter S28.

In this example, the lifter S28 can be moved to the front position of the left and right multi-stage heating presses S24 and S25 on the rail S28a laid on the floor by wheels S28b. Is received from the multi-stage heating press S24 (S25), and then moved to the position of the conveyor S29 for sending the dried product 23 to the next step.

The multi-stage heating press S24, S
25 is not limited to two or more as described above, but may be a single multi-stage heating press. Further, although the molding cycle is inferior to that of the multi-stage heating press, a type in which the primary dried products are heated and pressed one by one may be used. Further, the multi-stage heating presses S24 and S25 are provided with suction devices S24a and S25a for sucking the steam and sending it to the wastewater treatment device so that the evaporated steam does not return to the dried product again. Also,
The transfer device S22 is not limited to the above structure.

The dried product 23 is in a state in which almost no water is removed, and is a molded product having high strength. The dried product is transported to the cutting step shown in FIG. This cutting step is performed when the dried product 23 has a size corresponding to a plurality of desired final products, or when the dried product 23 and the final product have different shapes. Depending on the shape and dimensions of the mold during the dehydrating press step and the type and shape of the final product, it may not be necessary. If such a cutting step is unnecessary, the dried product 23 is a product.

The cutting step in this embodiment is performed by cutting the dried product 23 conveyed by the conveyor S29 to a desired size with a cutter S30. For example, the dried product 23 is cut in parallel at a total of three places on both edges and a central portion, and then the dried product 23 is rotated by 90 ° by a turntable S30a to be parallel at both edges and the central portion orthogonal to the cutting line. To cut the product into unnecessary edges and four products, or simply cut and remove the periphery of the dried product 23 to a predetermined size to obtain a product. S30b in FIG. 9 is a drying finished product positioning member at the time of cutting.

Unnecessary chips generated at the time of cutting are collected, weighed, and then disintegrated with water together with waste paper in the raw material preparation step and reused. Further, dust generated at the time of cutting is sent to a dust collecting device S31 by a suction device, where fibers are collected, weighed together with the cut pieces and disintegrated into water,
Reused. At that time, the scraps and dust are calculated assuming that the ratio of paper fiber and chemical fiber is the same as that of the product, and is recycled as a raw material of the product. The cut product or the dried product that does not require cutting is then provided with a decorative sheet or a necessary member attached to the surface, depending on the application.

FIG. 10 is a schematic diagram of a wastewater treatment apparatus. The wastewater treatment apparatus of this embodiment includes a settling tank S32, a settling tank S33, and a storage tank S34. The coagulation tank S32 is supplied with water (white water) mixed with the fibers squeezed out in the dehydration press step. Then, an acidic coagulant is charged into the coagulation tank S32, whereby the fiber components coagulate and accumulate at the bottom of the coagulation tank S32. Further, an alkali neutralizer is added to the coagulation tank S32.
, And neutralized water, clean supernatant water is sent to the storage tank S34, and once stored, is supplied to the raw material preparation step. On the other hand, the fiber sedimentation water collected at the bottom of the coagulation tank S32 is sent to the settling tank S33, where the fiber content is filtered, and clean water is sent to the raw material preparation step. In addition, settling tank S
If the fiber precipitation water (white water) supplied to 33 is reused in the raw material preparation step, the recycling rate is further improved.

[0056]

According to the first aspect of the present invention, the components of a game machine are manufactured from a mixed fiber dispersion of paper fibers and chemical fibers by a dewatering press step and a drying step, so that the fibers are well entangled at the time of product molding. In addition, a gaming machine component having a uniform strength and high strength can be obtained. In addition, since the drying step is performed separately from the dehydration pressing step, the drying can be surely performed, and a product having higher strength can be obtained. In addition, the constituent members of the obtained gaming machine are formed by entanglement of the fibers, which is different from the conventional bonding of the fibers by fusion of an adhesive or a synthetic resin, so that re-fibrillation is possible, Can be recycled.

According to the second aspect of the present invention, since used paper fiber is used as the paper fiber, it is economical and useful for recycling paper products, and has the effect of contributing to the reuse of waste.

According to the third aspect of the present invention, since a raw material preparation step of disintegrating paper fibers and chemical fibers in water and mixing and dispersing them is provided, the fibers are uniformly dispersed and a product having uniform strength is obtained.

According to the fourth aspect of the present invention, since the page sticking portion of the old magazines is cut and removed in advance, the failure of the manufacturing apparatus can be reduced and the service life can be increased. Furthermore, since there is little foreign matter when the fibers are disintegrated in water, the disintegration of the fibers can be performed more smoothly, and the production efficiency is improved. ,

According to the fifth aspect of the present invention, instead of simultaneously disintegrating paper fibers and chemical fibers having different disintegration densities in water into water as they are, disperse them in a concentration suitable for each fiber. Using a liquid and a chemical fiber dispersion, the paper fiber dispersion and the chemical fiber dispersion are mixed to prepare a mixed fiber dispersion, so that the paper fiber and the chemical fiber are well mixed to obtain a uniform and high-strength product. be able to.

According to the sixth aspect of the present invention, since the mixed fiber dispersion is molded by adding a moldability improving agent to the mixed fiber dispersion, the mixed fiber dispersion can be manufactured more efficiently, and a product having desired physical properties can be obtained. .

According to the seventh aspect of the present invention, since the drying step is performed in two stages of primary drying and secondary drying, a dried product having high strength can be obtained more reliably. Claim 8
According to the invention, in the primary drying step, a plurality of dewatered press-molded articles are dried while being conveyed upright, so that the drying efficiency is good, the drying can be performed continuously, and the production can be performed efficiently. In addition, the size of the drying equipment can be reduced, and the installation area of the production line can be reduced. According to the ninth aspect of the present invention, in the secondary drying step, since drying is performed in a multi-stage manner in which a plurality of primary dried products are vertically stacked, not only the installation area of the production line can be reduced, but also drying can be performed efficiently. .

According to the tenth aspect of the present invention, since a molded product having a size of a plurality of products can be manufactured and cut into a plurality of products by a cutting process, manufacturing efficiency can be improved. If the periphery of the molded product becomes unsightly, a good product can be obtained by cutting and removing the portion in this cutting step.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a gaming machine having a component manufactured by a manufacturing method of the present invention.

FIG. 2 is a rear view of the game board according to the embodiment of FIG.

FIG. 3 is a block diagram showing steps of a manufacturing method according to the present invention.

FIG. 4 is a schematic view showing a raw material preparation step.

FIG. 5 is a schematic view of a dewatering press step.

FIG. 6 is a schematic diagram of a primary drying step.

FIG. 7 is a schematic diagram of a secondary drying step.

FIG. 8 is a schematic plan view of FIG.

FIG. 9 is a schematic view of a cutting step.

FIG. 10 is a diagram schematically showing a wastewater treatment apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Gaming machine 11 Gaming board 12 Gaming machine frame 13 Ball tray 21 Dehydration press molded product 22 Primary dried product 23 Final dried product S9 Mixing device S11 Cold press machine S17 Wicket dryer S24, 25 Multistage heating press machine

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) D21H 13/00 D21H 13/00 D21J 1/00 D21J 1/00

Claims (10)

[Claims] 1. A method for manufacturing a component of a gaming machine, wherein a mixed fiber dispersion in which at least paper fiber and chemical fiber are mixed and dispersed in water is filled in a mold, and the filled mixed fiber dispersion is pressed. A dewatering press step of dewatering to obtain a dewatered press molded article; and a drying step of drying the dewatered press molded article. 2. The method according to claim 1, wherein the paper fibers are used paper fibers. 3. The dewatering press step according to claim 1 or 2, wherein after the raw material preparation step of preparing a mixed fiber dispersion by disintegrating paper fibers and chemical fibers in water and mixing and dispersing the fibers, a dewatering press step is performed. A method for manufacturing a gaming machine component. 4. In the raw material preparation step, the paper part of the old magazines is cut and separated from the page sticking part, and then the paper part is mixed with water to disintegrate the waste paper fiber and mixed and dispersed together with the chemical fiber. A method for manufacturing a gaming machine component according to claim 3. 5. A paper fiber dispersion in which paper fibers are dispersed in water,
5. The method for manufacturing a gaming machine component according to claim 3, wherein a chemical fiber dispersion in which chemical fibers are dispersed in water is mixed in a raw material preparation step to prepare a mixed fiber dispersion. 6. The method for producing a component of a game machine according to claim 1, wherein a chemical for improving formability is added to the mixed fiber dispersion. 7. The method of manufacturing a gaming machine component according to claim 1, wherein the drying step comprises a primary drying and a subsequent secondary drying. 8. The method according to claim 7, wherein the primary drying includes drying a plurality of dewatered press-molded articles while standing and transporting them. 9. The method according to claim 7, wherein the secondary drying is performed in a multi-stage system in which a plurality of primary dried products are vertically stacked and hot-pressed. 10. The method according to claim 1, wherein a cutting step of the dried product is performed after the drying step.