JP2006297857A - Manufacturing method of fixture for game facilities - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a fixture for game facilities having good quality even from an aspect of appearance which enables easy cutting and nail driving like natural wood, has good moldability and processability and can express a woody feeling or the warmth of wood like natural wood. <P>SOLUTION: Waste wood Ma is subjected to powdering treatment to obtain a waste wood powder Map, a predetermined amount of this waste wood powder Map and a predetermined amount of a waste plastic Mb are compounded with each other and compounded with at least two additives Ms, etc. to obtain a main raw material Mo, and pellets P are made by pelletizing the main raw material Mo in a kneading process (S9) and a granulation process (S10) and molded in a molding process (S11) to manufacture the fixture Mp for game facilities by using false wood. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for manufacturing equipment for amusement facilities using a predetermined amount of waste wood and a predetermined amount of waste plastic as raw materials.

  Conventionally, as a method for producing a recycled synthetic material using waste wood and waste plastic, a method for producing a wood / plastic composite board disclosed in JP-A-2003-1611 is known.

The manufacturing method of the wood / plastic composite board disclosed in the publication is obtained by dry-mixing wood chips and / or wood powder: 100 parts by weight with a ratio of thermoplastic resin: 40 parts by weight to 150 parts by weight. The raw material for the core layer is formed by mixing a wood material chip and / or wood material powder and a thermoplastic resin as a raw material for the surface layer to form a mat. And waste plastics are used as recycling materials.
JP 2003-1611 A

  However, the conventional manufacturing method described above has the following problems.

  First, because it is composed of a wood / plastic composite board, it can be reduced in weight compared to plastic alone, but it is difficult to achieve weight reduction equivalent to or close to that of natural wood. It is difficult to put into practical use equipment for play facilities made of synthetic materials using waste wood and plastic.

  Second, it is basically a wood / plastic composite board (particle board) in which wood chips are mixed in a plastic molded product. It is difficult to ensure the warmth of the.

  The object of the present invention is to provide a manufacturing method of equipment for amusement facilities that solves the problems existing in the background art.

  In order to solve the above-described problems, the manufacturing method for a play facility equipment Mp according to the present invention, when manufacturing a play facility equipment Mp using a predetermined amount of waste wood Ma and a predetermined amount of waste plastic Mb as raw materials, Waste wood powder Map is obtained by pulverizing wood Ma, a predetermined amount of this waste wood powder Map and a predetermined amount of waste plastic Mb are blended, and one or more additives Ms... The pellets P are formed from the main raw material Mo by the kneading step (S9) and the granulating step (S10), and the pellets P are formed by the forming step (S11) to form the equipment Mp for the play facility using pseudo wood. It is characterized in that it is manufactured.

  In this case, according to a preferred aspect of the invention, the mixing ratio of the waste wood powder Map and the waste plastic Mb is about 0.5 to 2.5 parts by weight when the waste wood powder Map is 1 part by weight. While being selectable, the particle size of the waste wood powder Map can be selected to be approximately 50 to 300 [μm]. On the other hand, in the kneading step (S9), the main raw material Mo can be kneaded using the twin screw extruder Xp. In addition, the main material Mo can be additionally blended with an unnecessary material Mn such as a defective product generated during the production of the equipment Mp for amusement facilities. On the other hand, the additive Ms... Can contain the foaming agent Mse, and can contain one or more of a compatibilizer, a lubricant, a heat stabilizer, and a pigment. Further, the additive Ms... Can contain either calcium carbonate Msc or talc.

  According to the manufacturing method of the play facility equipment Mp according to the present invention by such a technique, the following remarkable effects can be obtained.

  (1) Easy cutting and driving of nails like natural wood are possible, and good moldability and workability can be obtained. As a result, a play facility equipment Mp made of a synthetic material using the waste wood Ma and the waste plastic Mb can be easily put into practical use.

  (2) Since the waste wood powder Map obtained by converting the waste wood Ma into powder is used, the surface of the play facility equipment Mp formed by the molding machine Mx may show a wood texture or warmth like natural wood. It is possible to obtain a play facility equipment Mp that is good in appearance.

  (3) According to a preferred embodiment, when the waste wood powder Map is 1 part by weight as the blending ratio, the waste plastic Mb is selected to be approximately 0.5 to 2.5 parts by weight, and the waste wood powder Map particles If the size is selected to be approximately 50 to 300 [μm], the best play facility equipment Mp close to the texture of natural wood can be obtained.

  (4) According to a preferred embodiment, in the kneading step (S9), if the main raw material Mo is kneaded by the twin screw extruder Xp, it can be uniformly kneaded with sufficient stirring, and the process time can be shortened and the cost can be reduced. Can do.

  (5) According to a preferred embodiment, if the waste material Mn generated during the production of the play facility equipment Mp is added to the main raw material Mo, pellets P, defective products of the play facility equipment Mp, molding waste, etc. Further reuse of the unnecessary material Mn can be achieved.

  (6) According to a preferred embodiment, if the additive Ms... Includes the foaming agent Mse, the weight can be reduced to the same or close to that of natural wood.

  (7) According to a preferred embodiment, if the additive Ms... Contains one or more of a compatibilizer, a lubricant, a heat stabilizer, and a pigment, the pellet P has good granulation and amusement facility equipment Mp. It can contribute to good molding.

  (8) According to a preferred embodiment, if one or both of calcium carbonate Msc and talc is included in the additive Ms..., A good weight increase effect and material strengthening can be realized when molding the equipment Mp for play facilities. Can do.

  Next, the best embodiment according to the present invention will be given and described in detail with reference to the drawings.

  First, the structure of the production facility 1 that can implement the method for producing the play facility equipment Mp according to the present embodiment will be described with reference to FIGS. 3 and 4.

  The production facility 1 is roughly divided into a waste plastic supply line L1 and a waste wood supply line L2 shown in FIG. 3, and a blending line L3, a granulation line L4, and a molding line L5 shown in FIG.

  The waste plastic supply line L1 includes a pulverizer 2 for pulverizing the waste plastic Mb to be input and a storage tank 3 for temporarily storing the waste plastic Mb pulverized by the pulverizer 2.

  The waste wood supply line L2 includes a storage tank 4 for temporarily storing waste wood Ma to be input, a crusher 5 for crushing waste wood Ma sent from the storage tank 4, and a waste wood Ma sent from the crusher 5. A primary iron remover 6 that removes iron from the iron, a secondary iron remover 7 that uses magnetism to remove iron that is not removed by the primary iron remover 6, and waste wood sent from the secondary iron remover 7 A magnetic field sorter 8 that removes non-ferrous metal from the Ma using a magnetic field, a primary grinder 9 that grinds waste wood Ma sent from the magnetic field sorter 8, and waste wood Ma sent from the primary grinder 9 The secondary pulverizer 10 for powdering, the storage tank 11 for temporarily storing the powdered waste wood Ma sent from the secondary pulverizer 10, and the powdered waste sent from the storage tank 11 It comprises a sieve machine 12 to obtain the desired waste wood powder Map, a storage tank 13 for temporarily storing waste wood powder Map sent from the sifter 12 by selecting the size of the wood Ma. In addition, 12r shows the return line connected to the secondary grinder 10 from the sieve 12.

  The blending line L3 incorporates a bag filter, an air knocker, and the like, and is connected to the storage tank 3 of the waste plastic supply line L1 through the piping mechanism 15b, and the storage tank 13 of the waste wood supply line L2 through the piping mechanism 15a. Are connected to the collector 14 for measuring the waste wood powder Map and the waste plastic Mb and supplying them to the main raw material mixer 22 described later, and the foaming agent measuring the foaming agent Mse and supplying it to the drum mixer 21 described later. The supply unit 18 and one or more additive supply units 19a, 19b, 19c that measure and supply various additives (compatibilizers, lubricants, heat stabilizers, pigments, etc.) Ms... To the mixer 22 described above. ..., a calcium carbonate supply unit 20 that measures the calcium carbonate Msc and supplies the calcium carbonate Msc to the mixer 22 and a foaming agent supply unit 18. Of the foaming agent Mse and various additives Ms... From the respective additive supply parts 19a, 19b, 19c... Are uniformly mixed and stirred, and supplied to the mixer 22 described above, and the waste wood powder Map and waste plastic Mb. , A main raw material mixer 22 for mixing various additives Ms... And calcium carbonate Msc. Thereby, the main raw material Mo is obtained from the main raw material mixer 22. Reference numeral 23 denotes a roots blower connected to the collector 14.

  The granulation line L4 includes a mixer-type intermediate tank 25 that temporarily stores the main raw material Mo conveyed from the main raw material mixer 22 by the spring feeder 24, and a waste material Mn that is generated during the production of the play facility equipment Mp. The waste material Mn obtained by pulverizing the defective product and molding waste of the pellet P and the play facility equipment Mp, and the waste material additional feeder 26 that measures and supplies the waste material Mn to the intermediate tank 25 are built in the intermediate tank 25. A twin-screw extruder (conical type extruder) Xp for heating and kneading the main raw material Mo containing the unnecessary material Mn introduced from the quantitative feeder, and an extrusion-molded material continuously extruded from the twin-screw extruder Xp A pellet making machine (pelletizer) 27 for granulating the pellets P, a vibration sorter 28 for sorting the pellets P, and a storage for storing the sorted non-defective pellets P And a link 29. The twin screw extruder Xp is provided with necessary peripheral devices such as a rear vent recovery device and a cleaning agent feeder.

  The molding line L5 includes an injection molding machine 30. The mold clamping device 30c of the injection molding machine 30 includes a mold, and a cavity for molding the play facility equipment Mp shown in FIGS. 5 and 6 is formed in the mold.

  Next, a manufacturing method of the play facility equipment Mp according to the present embodiment using such a manufacturing facility 1 will be sequentially described according to the flowchart shown in FIG. 1 (FIG. 2) with reference to FIGS. 3 to 6.

  First, the waste wood Ma used as a recycling raw material is put into the waste wood supply line L2 and is pulverized (step S1). The powdering process of the waste wood Ma will be described with reference to the flowchart shown in FIG. The waste wood Ma input to the waste wood supply line L2 is temporarily stored in the storage tank 4. As the waste wood Ma, building waste obtained by dismantling a house or the like, sawdust obtained from a sawmill, and the like can be used. Moreover, when the waste wood Ma is large, it is crushed to a size of about 4 to 5 [cm] by a crusher in advance.

  The waste wood Ma stored in the storage tank 4 is supplied to the crusher 5 and chipped into a size of about 5 to 10 [mm] that can be conveyed by air (step S21). The waste wood Ma made into chips is supplied to the primary iron remover 6, and iron mixed in the waste wood Ma is removed (step S22). Waste wood Ma in the primary iron remover 6 passes through the secondary iron remover 7, and iron that is not removed by the primary iron remover 6 is removed by the secondary iron remover 7 using magnetism. (Step S23). Further, the waste wood Ma that has passed through the secondary iron remover 7 is sent to the magnetic field sorter 8, and non-ferrous metals such as aluminum are removed from the waste wood Ma using a magnetic field (step S24). And the waste wood Ma which passed the magnetic field sorter 8 is sent to the primary grinder 9, and is grind | pulverized to a magnitude | size of about 1-2 [mm] with a rotary blade (step S25).

  The waste wood Ma passed through the primary pulverizer 9 is sent to the secondary pulverizer 10 and powdered into particles of about 50 to 300 [μm] by a mill (stone mill) (step S26). The powdered waste wood Ma is temporarily stored in the storage tank 11 and then sent to the sieving machine 12, where only the waste wood Ma having a particle size of 200 [μm] or less is selected (step S27). Thereby, the target waste wood powder Map is obtained and temporarily stored in the storage tank 13. In addition, the waste wood Ma exceeding 200 [μm] is returned to the secondary pulverizer 10 via the return line 12r, and again powdered. The waste wood Ma particles can be sufficiently used if they are about 50 to 300 [μm], but the particles are made uniform and refined by sorting to 200 [μm] or less, and the appearance as a pseudo wood Can be further enhanced.

  On the other hand, the waste plastic Mb, which is a recycled raw material, is input to the waste plastic supply line L1. In this case, the waste plastic Mb introduced into the waste plastic supply line L1 is flaked to a size of about 4 to 5 [mm] in advance, but a large waste plastic Mb is also mixed. By passing 2 through, all the waste plastics Mb are flaked to a size of about 4 to 5 mm (step S2). The flake waste plastic Mb is temporarily stored in the storage tank 3. As the waste plastic Mb, various waste plastics to be disposed of are applied. Usually, polypropylene, ABS resin, and polyethylene are desirable, but various plastics other than these plastics such as polystyrene, polyethylene terephthalate, polycarbonate, polyamide resin, polyacetal, and vinyl chloride resin are applied. In addition, although the waste plastic Mb showed the case where it flakes to the magnitude | size about 4-5 [mm] previously, it was powdered so that it might become a particle | grain smaller than flakes similarly to the case of waste wood powder Map. Processing may be performed.

  Next, the waste wood powder Map, the waste plastic Mb, and various additives Ms... Are measured and supplied to the main raw material mixer 22. In this case, the waste wood powder Map temporarily stored in the storage tank 13 is sucked by the collector 14 (Roots blower 23) and supplied to the main raw material mixer 22. At this time, the supply amount of the waste wood powder Map supplied to the main raw material mixer 22 is regulated (controlled) by valve switching, whereby the waste wood powder Map is measured (step S3). The waste plastic Mb temporarily stored in the storage tank 3 is also sucked by the collector 14 (Roots blower 23) and supplied to the main raw material mixer 22. At this time, the supply amount of the waste plastic Mb supplied to the main raw material mixer 22 is also regulated (controlled) by valve switching, whereby the waste plastic Mb is weighed (step S4).

  Further, various additives Ms (including foaming agent Mse and calcium carbonate Msc) are weighed and supplied to the main raw material mixer 22 (step S5). In this case, the foaming agent Mse is weighed from the foaming agent supply unit 18 and supplied to the drum mixer 21 arranged in the preceding stage of the main raw material mixer 22, and from each of the additive supply units 19a, 19b, 19c. Various additives (compatibilizer, lubricant, heat stabilizer, pigment, etc.) Ms... Are weighed and supplied to the drum mixer 21. In the drum mixer 21, various additives Ms including the foaming agent Mse are uniformly mixed and stirred and then supplied to the main raw material mixer 22. In the example, the foaming agent Mse is blended at this stage, but the blending process differs depending on the type of the foaming agent Mse.

  If such a foaming agent Mse is included as the additive Ms ..., the weight can be reduced to the same or close to that of natural wood, and the additive Ms ... can be used as a compatibilizer, lubricant, heat stabilizer, If one or two or more pigments are included, it is possible to contribute to good granulation of the pellet P and good molding of the equipment Mp for play facilities.

In this embodiment, a compatibilizer, a lubricant and a heat stabilizer are used as the additives Ms. In this case, the compatibilizer is a good additive for mixing the waste wood powder Map and the waste plastic Mb, and the lubricant is an additive for improving the extrusion process. In addition, each measurement value per batch process is as follows.
Waste plastic Mb: 45 [kg]
Waste wood powder Map: 55 [kg]
Compatibilizer: 500 [g]
Lubricant: 1 [kg]
Thermal stabilizer: 1 [kg]
Foaming agent: 500 [g]

  Further, from the calcium carbonate supply unit 20, calcium carbonate Msc is appropriately measured and supplied to the main raw material mixer 22. If one or both of the calcium carbonate Msc and talc is included as the additive Ms..., It is possible to realize a good weight-increasing effect and material strengthening when molding the play facility equipment Mp.

  The waste plastic Mb, waste wood powder Map, and various additives Ms (compatibility agent, lubricant, thermal stabilizer, foaming agent Mse and calcium carbonate Msc) supplied to the main raw material mixer 22 are the main raw material mixer. 22 is uniformly mixed (first mixing) (step S6). The mixing by the main material mixer 22 is performed without heating. Thereby, the main raw material Mo is obtained. The obtained main raw material Mo is supplied to a mixer-type intermediate tank 25 by a spring feeder 24. On the other hand, the waste material additional feeder 26 is obtained by pulverizing the waste material Mn generated in the course of manufacturing the play facility equipment Mp, specifically, the pellet P and the defective product of the play facility equipment Mp, molding waste, and the like. The unused material Mn is weighed and supplied to the intermediate tank 25 (step S7). Thereby, in the intermediate tank 25, the unnecessary material Mn is additionally blended with respect to the main raw material Mo, and is uniformly mixed (second mixing) (step S8). Therefore, the waste material Mn can be further reused. The supply of the waste material Mn is performed irregularly and does not necessarily need to be added.

  Next, the main raw material Mo (or only the main raw material Mo) in which the unnecessary material Mn is blended is fed into the hopper of the twin-screw extruder Xp by the quantitative feeder built in the intermediate tank 25. Thereby, the kneading | mixing process in which the main raw material Mo is heat-kneaded using the twin-screw extruder Xp is performed (step S9). If the kneading step is performed using such a twin-screw extruder Xp, uniform kneading with sufficient stirring can be performed, and the process time can be shortened and the cost can be reduced.

  On the other hand, a continuous linear extruded material is extruded from the twin screw extruder Xp, and this extruded material is sent to the pellet manufacturing machine 27. In the pellet manufacturing machine 27, the extruded material is subjected to a cooling process with water, a cutting process for finely cutting, a dehydration process for removing water, and the like, and a granulation process for granulating the pellet P is performed (step) S10). Thereafter, the pellet P is supplied to the vibration sorter 28. As a result, only the pellets P having a size within the specified range are sent to the storage tank 29 and stored. On the other hand, the pellet P having a size exceeding the specified range is excluded and reused as the above-described waste material Mn. In the twin-screw extruder Xp, the main raw material Mo mixed in the steam discharged from the rear vent of the twin-screw extruder Xp is reintroduced into the hopper of the twin-screw extruder Xp by the rear vent recovery device.

  On the other hand, the pellets P stored in the storage tank 29 are put into a hopper of the injection molding machine 30, and injection molding (molding process) is performed by the injection molding machine 30 (step S11). In this case, the mold clamping device 30c in the injection molding machine 30 includes a mold, and the equipment Mp for the play facility is molded by this mold.

  5 and 6 show a pachinko ball tray 51 that houses a pachinko ball that is one of the equipment Mp for play facilities. The pachinko ball tray 51 is open upward, and has a side surface portion 52 and a bottom surface portion 53 that are front, rear, left and right four surfaces, and the side surface portion 52 has a pair of left and right handles 54p and 54q. Since the pachinko ball tray 51 is often unusable due to damage or dirt due to use, promotion of recyclability is required from the aspect of effective use of resources.

  The manufacturing method of the play facility equipment Mp according to the present embodiment can meet such a request, and the resulting play facility equipment Mp can be easily cut and driven with nails such as natural wood, Good moldability and processability can be obtained. Thereby, the equipment Mp (pachinko ball tray 51) for play facilities by the synthetic material using the waste wood Ma and the waste plastic Mb can be easily put into practical use.

  In addition, since the waste wood powder Map obtained by converting the waste wood Ma into powder is used, the surface of the play facility equipment Mp formed by the molding machine Mx can show a wood texture and warmth like natural wood. Also, it is possible to obtain a play facility equipment Mp having a good appearance. In particular, in the embodiment, when the waste wood powder Map is 1 part by weight as the mixing ratio, the waste plastic Mb is selected to be approximately 0.5 to 2.5 parts by weight, and the size of the waste wood powder Map particles. Is selected to be approximately 50 to 300 [μm], so that the best equipment Mp for a play facility that is close to the texture of natural wood can be obtained.

  Although the best embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the scope of the present invention is not deviated from the gist of the present invention in the detailed configuration, shape, material, quantity, and the like. It can be changed, added, or deleted arbitrarily. For example, the case where the waste plastic Mb is selected as 45 [kg] and the waste wood powder Map is selected as 55 [kg] as the most preferable blending amount of the waste plastic Mb and the waste wood powder Map is shown. When the powder Map is 1 part by weight, good results can be obtained by selecting the waste plastic Mb to be approximately 0.5 to 2.5 parts by weight. On the other hand, in the kneading step, the case of kneading using the twin screw extruder Xp is illustrated, but this does not exclude the case of kneading by other means. In addition, as the additive Ms..., The foaming agent Mse is used, and one or two or more compatibilizers, lubricants, heat stabilizers, and pigments are arbitrarily selected and used. The use of… is not excluded. Furthermore, although the case where calcium carbonate Msc is used as the additive Ms... Is shown, talc may be used instead of calcium carbonate Msc, or both calcium carbonate Msc and talc may be used. It should be noted that various play facility equipment other than the illustrated examples can be applied to the play facility equipment Mp, and the play facility equipment Mp is a concept including parts and accessories.

The flowchart for demonstrating the manufacturing method of the equipment for play facilities which concerns on suitable embodiment of this invention, A flowchart showing the procedure of the powdering process in the manufacturing method, Schematic diagram of waste plastic supply line and waste wood supply line in a manufacturing facility that implements the manufacturing method, Schematic diagram of blending line, granulation line and molding line in the manufacturing facility for carrying out the manufacturing method, The perspective view which shows the equipment (pachinko ball tray) for play facilities manufactured by the manufacturing method, Front sectional view showing equipment for the play facility (pachinko ball tray),

Explanation of symbols

Mp Equipment for play facilities Ma Waste wood Mb Waste plastic Map Waste wood powder Ms Additives Mo Main raw material Mn Waste material Mse Foaming agent Msc Calcium carbonate S9 Kneading step S10 Granulation step S11 Molding step P Pellet Xp Twin screw extruder

Claims (8)

  In a manufacturing method of equipment for amusement facilities using a predetermined amount of waste wood and a predetermined amount of waste plastic as a raw material, the waste wood is pulverized to obtain waste wood powder, the predetermined amount of the waste wood powder and the waste plastic And blending one or two or more additives into the main raw material, granulating the pellet from the main raw material by a kneading step and a granulation step, and forming the pellet by a molding step A method for manufacturing equipment for play facilities, characterized in that the equipment for play facilities is manufactured using pseudo-wood.   2. The mixing ratio of the waste wood powder and the waste plastic is selected to be about 0.5 to 2.5 parts by weight when the waste wood powder is 1 part by weight. The manufacturing method of the equipment for description play facilities.   The method of manufacturing equipment for amusement facilities according to claim 1 or 2, wherein the size of the particles of the waste wood powder is selected to be approximately 50 to 300 [µm].   The method for manufacturing equipment for amusement facilities according to claim 1, wherein in the kneading step, the main raw material is kneaded using a twin screw extruder.   The method for manufacturing equipment for an amusement facility according to claim 1 or 4, wherein the main raw material is additionally blended with a waste material such as a defective product generated during the production of the equipment for the amusement facility.   The method for manufacturing equipment for a play facility according to claim 1, wherein the additive includes a foaming agent.   The method for manufacturing equipment for amusement facilities according to claim 1, wherein the additive contains one or more of a compatibilizer, a lubricant, a heat stabilizer, and a pigment.   The method for manufacturing equipment for a play facility according to claim 1 or 6, wherein the additive contains one or both of calcium carbonate and talc.

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