JP2921891B2 - Automatic resin processing equipment and processing method for synthetic resin products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus and method for preparing and treating synthetic resin particles, and particularly to the production and production of relatively wide variety of synthetic resin particles. It is effective for processing.

[Conventional technology]

The industrial fields that handle powders and granules cover a wide variety of fields, including food, pharmaceuticals, chemicals, and synthetic resins.

In automating the powder / particle processing work which has conventionally relied on the work obtained, the automation of each unit working machine itself has little effect on labor saving.

Automated transport is performed in various fields, but there are specific circumstances depending on the target, such as instrument assembly parts, luggage, and fluids, and appropriate means must be selected.

The powder can be transported by a means according to the fluid such as pneumatic transportation, gravity drop, and the like, and there is a surface suitable for automation processing. In the case of large-volume, continuous processing, automation by continuous processing using these means is performed for transfer between working machines. However, in construction that requires processing of various types of powder and granules using a common facility, there is a problem in achieving automation by only continuous processing involving switching of raw materials.

As a problem peculiar to the multi-kind treatment of powders, there is contamination (contamination). The powder (the powder also rubs and forms powder) adheres to the powder transfer pipe wall, causing contamination problems if used directly in the next batch with a different formulation, and adheres to the relatively long transfer pipe wall Washing off the powder is a cumbersome task. The contamination problem associated with such switching of the granular formulation is significantly different from the field of transporting ordinary solid articles.

Such technical fields include, in particular, plastics molding. The level of automation technology in this field can be found in, for example, Keiji Sawada: "Automation Technology for Plastics Molding Plants" (Plastic Swage 1985). The book has one chapter entitled "Automation Equipment for Molding Plants-Transport, Measuring, Mixing and Auxiliary Equipment-". Granulation FA system (from page 46),
Sections of auxiliary equipment (page 52-) common to the molding factory are provided, and the technology in this field is widely introduced.

This book describes a number of automated equipment for transporting raw materials, such as suction air transport, pneumatic transport, pneumatic transport (high concentration) transport, coil type, screw type, chain type, spiral type, conveyor or lift type, etc. According to the press molding factory, suction type or pressure feed type is predominantly used (p. 29). 46
The raw material supply system used for injection molding of miscellaneous goods introduced on the page uses a suction type pneumatic transport device, attaches a suction pipe to the lower part of the raw material silo, and selects and distributes raw materials with a switch plate provided in the middle of the pipe . In addition, an automatic compounding and feeding device based on a three-dimensional arrangement utilizing natural fall is introduced (p. 49).

The same book pointed out that the raw material remaining in the pipe remains even if it is blown for cleaning, and devised the gate valve of the tank and the coupling of the pipe without mixing several kinds of raw material. It shows that there is a state-of-the-art material supply system that has been successfully handled (p. 47).

Among the plastics molding processes, production of plastics compound pellets is a typical case in which the problem of contamination due to switching of powders between different lots is likely to occur. That is, the production of a plastics compound in which one or more kinds of synthetic resins, fillers, stabilizers, and other various additives are uniformly mixed includes the preparation of powdery and granular materials, kneading by an extruder, pelletizing, and pelletizing. It consists of a composite of powder and granule processing processes such as bagging.
By the way, in the field of plastics, even though the type of basic polymer substance is relatively small in one factory, an extremely large number of products are produced by resin blends and additives according to various uses. In some cases, varieties are developed. In such a case, it is necessary to adopt a system that enables the production of a relatively small amount and many varieties using common equipment such as an extruder and a bagging machine. As described above, automation of handling of powder and granular materials has been advanced mainly from the viewpoint of continuity, and in the case of a mass production system, results have been achieved by pneumatic transfer and the like. However, in the case of frequently switching between various types, there is a technical restriction to cope with the piping method.

Therefore, conventionally, in the processing work dealing with various kinds of powders, in order to appropriately deal with the switching between kinds and lots, a method using a forklift and a container for transportation, a crane and a moving container Is generally practiced.

[Problems to be solved by the invention]

The conventional means using a forklift and a transport container is far from automation and requires a sufficiently large working space. Further, the means using the crane and the moving container lacks flexibility of measures including measures at the time of failure.

In addition, when processing a wide variety of powdered and granular materials and powdered and granular products composed of various components with limited common equipment, contamination of the product with pre-used components remaining on the used equipment may cause contamination of the product. This is a very important issue in quality.

The present invention provides a powder and granular material processing system that is fully and efficiently automated with limited equipment, which is suitable for various kinds of powder and granular material processing for the purpose of preparing synthetic resin products, Conventionally, rationalization has been delayed, and it is intended to contribute to labor saving and unmanned production processes in this field. Synthetic resin powder that is extremely effective in avoiding problems due to the above contamination, which is a quality problem. An object of the present invention is to provide a processing facility and a processing method for granules.

[Means and actions for solving the problem]

The present inventor has solved the above-mentioned problem by combining a moving container designated for each lot and an unmanned transport means whose movement between specific points is controlled in accordance with specific information. That is, the present invention relates to, for example, FIG.
(B) and as shown in FIG. 2, each of which has a unique number, and has an inlet and an outlet, and a plurality of granular material transfer containers 10 designated for each lot; A container storage point 30 as a starting point; a raw material charging point 41 at which the synthetic resin raw material and the powdery raw material of the auxiliary raw material are charged into the container 10 at least; a raw material blending point 51 in the container; A feed point 61 for the raw material to the melt extruder 60 and a melt extruder 60
Each pellet processing operation point consisting of a product receiving point 62 for extruded pellets from the factory, and, if necessary, a mixing point or bagging point 71 for extruded resin pellets; washing and drying for washing and drying the inside of the transfer container 10 A point 81 having equipment; an unmanned transfer means for moving the container between the container storage point 30 and each work point and the washing and drying point of the container; a container movement control means according to the kind, lot size and container designation information; Provide automatic preparation processing equipment for multi-product synthetic resin products equipped with the above, and input the information on the product type and the size of lot to the container movement control means. Specifying the granular material transfer container 10 having, according to these information, the unmanned transfer means, the container 10, at least a raw material charging point for metering the synthetic resin raw material and its auxiliary raw material granular material raw material into the container 10 When, The blending point of the ingredients in the container,
The supply point of the raw material in the container to the melt extruder 60 and the melt extruder
For each processing operation at each granule processing operation point consisting of product receiving points of extruded pellets from 60, and, if necessary, for each processing operation at each processing point including mixing and bagging of extruded pellets Then, the container 10 is transferred to the container storage point 30 from the container storage point 30 to any of the granular material processing operation points, and returned to the container storage point 30 each time the processing operation is completed. Transported between the work point and processed, the container 10 used during this time is transferred to the washing and drying point 81 at the stage when at least the series of processing work is empty and empty,
It is an object of the present invention to provide a processing method of cleaning and drying the inside thereof and waiting for the processing of the next lot in a clean state free from contamination.

Therefore, according to the present invention, the container is transported from the container storage point to each work point for each processing operation with the container storage point as a functional (operationally) center, and returned to the container storage point after each processing. Since containers are reciprocated for each processing step and used, the automation of a series of complicated synthetic resin preparation steps including steps consisting of heterogeneous work elements such as the melt extrusion step can be smoothly performed with limited equipment. It becomes possible.

The container storage point 30 is shown in FIGS. 1 (a) and 1 (b).
A rack stock 31 is shown, and there is another stacker crane not shown. Further, in the drawings as an embodiment of the present invention, a raw material charging machine 41 is used as a raw material charging point for metering and charging a granular material into a container, and a blender 51 is used as a blending point of raw materials in a container. A supply tilt 61 is provided as a supply point to the melt extruder 60, a product receiver 62 is provided as a product receiving point of the extruded pellets from the melt extruder 60, and a washing dryer is used as a washing and drying point of the container.
81 are each exemplified. FIGS. 1 (a) and 1 (b) show an unmanned transfer means composed of an unmanned carrier 21 and a transfer cart 20, and FIG. 2 shows only arrows indicating the movement. .

In a typical embodiment of the present invention, the unmanned transfer means for transferring the powder or granular material contained in the container is mainly composed of an unmanned carrier 21 and is partially combined with a transfer truck 20 which is a fixed transfer means. These are commonly used for moving empty containers. As described above, the embodiment in which the fixed transfer means is partially combined in consideration of the frequency of use and occupation time while mainly using the automatic guided vehicle having the versatility of the moving point is flexible with respect to the variety of varieties. Although it is particularly preferable because it achieves both good compatibility and efficient equipment, the combination of fixed transfer means is not an essential requirement of the present invention.

In this embodiment, the section in which the container moves is a container storage point 30 and a granular material supply point, that is, a raw material input device 41 position, a container storage point 30 and a blender 51 point, a container storage point 30 and a supply tilt 61 point, a container storage point. The point 30 and the point 62 for receiving the product of the extruded pellet, the container storage point such as the container storage point 30 and the bagging tilt 71, and between the work points, and between the container storage point 30 and the container washing and drying device 81.

The containers are used repeatedly between the same lots, that is, as long as the same type of granular material is used. However, at least after the work of the lot is completed, the containers are washed and dried and stored in the container storage point. Further, for washing and drying, for example, a box-type unit in which a container-equipped washing room having a cleaning water injection nozzle and a container-equipped drying room equipped with a hot air circulation device are arranged side by side, and moved between the two rooms. Washing and drying work can be performed continuously without any trouble because it is divided by a plate of the type. In addition, since the lifter and the inclined roller conveyor are arranged in both the washing room and the drying room, it is possible to enter and exit the container and wash and dry. Can be reasonably automated. As a result, different kinds of powder contamination due to the use of the same container between different lots can be prevented, and almost complete automation can be realized, including a washing process of equipment which is inevitable for switching processing of multi-type powders. Became.

In the present invention, since not only the container itself but also the powdery granules which are originally analogous are packetized, they are suitable for digital management by a computer using the container number as a key.

In addition, the powder material processing work point in the present invention is, as seen in the above example, at least a powder resin material material or the like.
Each work point consists of a raw material charging point, a raw material blending point in the container, a raw material supply point to the melt extruder 60, and a product receiving point of extruded pellets from the melt extruder 60. Then, supply of granules, processing of granules, production of granules, transfer of granules, mixing of granules, removal of granules, including mixing of extruded pellets and bagging Etc. refers to a work point where the resin powder is involved in at least a part of the work.

Although the washing and drying operation of the granular material transfer container is an essential requirement for achieving the purpose of preventing contamination of the present invention, the washing and drying operation itself is not a granular material processing operation.

〔Example〕

Hereinafter, the present invention will be described with reference to examples in a thermoplastics compound pellet production facility.

1 (a) and 1 (b) are side flow diagrams of the processing operation of the present invention in this embodiment, FIG. 2 is a conceptual diagram of the operation, and FIG. 3 is a bird's-eye view of the equipment. In FIG. 1, for convenience,
The floor and the rack stock of the floor are illustrated separately in (a) and (b). However, as shown in FIG. 3, a continuous floor is shown and the work form is different. FIG. 1 (a),
(B) The arrows [A] and [B] in FIG. 2 indicate the movement of the container.

As shown in FIG. 3, in this embodiment, a supply tilt 61 for supplying a raw material to a rack stock 31, a raw material input device 41, a blender 51, and an extruder 60, a product receiver 62, a bagged tilt 71, a washing and drying operation. Machines 81 and the like are arranged in both side zones on the second floor of the workplace, and a central zone therebetween is a traveling path of an automatic guided vehicle (AGV) 21 provided with a wireless guidance guide below the floor. The AGV 21, which is a leading player of the movement, moves between the rack stock 31 and each work point according to instructions of the computer. Although there are actually a large number of granular material containers, only a small number of the granular material containers are shown (the upper surface is painted out conspicuously). Each of the containers 10 is assigned a unique number, and all of the powder and granule processing operations are managed by a computer using the container number as a key. However, if there is a malfunction, there is no danger of causing serious adverse effects such as contamination. Therefore, in this embodiment, the reliability of the automatic operation is enhanced by attaching the bar code 13 to the container and reading and confirming the container with the rack stock 31. The condition of containers used in one lot can be distinguished into new containers, material containers, empty material containers, product containers, and product empty containers, and the control means keeps track of the container number, type code, storage number, etc. at all times. doing.

First, the outline of the embodiment will be described with reference to these drawings. In this embodiment, there are a raw material charging step, a blending step, and an extruding step, and therefore, the raw material charging machine 41, the blender 51, the supply tilt 61, and the product receiving apparatus are used as working machines to which the containers are transferred.
There are 62. Further, a bag filling step and a container washing / drying step are accompanied, and there are a bag packing tilt 71 and a washing / drying machine 81 as respective working machines. At the center (in the functional sense) of the working points of these processes is a storage point 30 consisting of a rack stock 31 equipped with a stacker crane (not shown), and each container 10 always originates at the storage point 30 or It moves as the end point (FIG. 2).

In the production of plastics compound pellets, first, the kind to be produced and the production amount are specified.
The operator inputs the type code and the production amount to the processing line (eg, extruder symbol L) and container number (eg, N
o.1 and 2) and input to the container movement control means (hereinafter simply referred to as control means). The control means is specifically a computer, but is omitted in the illustration.

When the type code is specified, the amount of the main raw material and the auxiliary raw material to be charged per container and the number of processed raw materials are calculated using the raw material prescription data stored in the host computer. It is set in a raw material feeder 41 which weighs and feeds raw materials into a container. Usually, the raw material charging machine 41 is automatically set according to the type of the base resin determined by the prescription, but it can be changed and designated.

When the above data is input and the start is instructed, the operation is performed as follows.

First, the AGV 21 moves to the storage point 30. Storage point 30
Is composed of a rack stock 31 and a stacker crane (omitted in the figure), and the designated container (washed and dried, so called "new container") taken out is taken out by the crane. The new container is moved by the AGV to a certain point of the raw material charging machine 41 [A], where the raw material is automatically charged into the container. More specifically, when the arrival of the AGV at the predetermined position is detected, the charging lid is removed by the automatic lid opening mechanism 22 provided with the arm provided on the AGV, and the container is placed in the raw material charging machine.
It is pushed under the chute 41, connected to it, and the raw material input is started. A small amount of auxiliary material may be manually charged as needed. When the input of raw materials such as resin and additives is completed (emptiness is determined by the weight sensor), the container returns to the AGV.

The control means looks for a space in the rack stock 31 here,
Raw material container is loaded into rack stock by AGV [B]
It is stored and the storage address is memorized. Next, the control means automatically determines the necessity of blending, and the raw material container is moved by the transfer cart 20 [C], set in the blender 51, and the mixing process of the powders is performed. Transfer to the blender can also be performed by the AGV. However, by using the transfer trolley 20 exclusively for movement near the blender, the occupation time of the AGV can be saved (reduced number of units), and overall As a result, the facility can be rationalized.

The completed container 10 is searched for an empty space in the rack stock 31, is carried into the rack stock by the transfer cart 20, and is stored and stored. The storage of the contents and storage addresses of the containers stored in the rack stock is common to all stages. Through the specification and management of the container in this manner, the processing steps of the packetized powdery material are managed.

The movement of each arrow of the container in this step is summarized as follows. The contents in parentheses are the contents of the container.

[A]: (new or raw material empty) rack stock → raw material input machine [B]: (raw material input) raw material input machine → rack stock [C]: (raw material input) rack stock → blender [D]: (blend raw material) Blender → rack stock The movement of one container was explained above, but of course,
As soon as the order of the AGV and the work machine becomes empty, the control means instructs the same operation to be repeated for a predetermined number of containers and records the storage address. If there is no empty container of the same kind, a new container is designated by the control means and used.

If the container cannot be set due to the shortage of the designated number of containers, etc., the operation is automatically suspended, and if conditions are established that can be restarted by specifying a new container or generating an empty container from the next process. The operation is restarted by the restart instruction.

An extruder 60 for melting, kneading and kneading raw materials such as resins and additives, extruding and cutting through nozzles to produce plastics compound pellets is located on the first floor below a tilt device on the second floor of the workplace. . If necessary, an auxiliary material (eg, glass fiber) can be charged to the extruder in a line. The pellets are continuously transported to the second floor by wind power and received in designated product containers. As a result, even if the extruder is located on the first floor, all containers can be transported on the same floor of the second floor, so that there is no hindrance to the operation of the AGV and also in terms of effective use of space. It is advantageous.

The extrusion process is also performed by inputting the same data as in the raw material supply and blending processes, and by specifying the start on the premise of specifying the container. The type, production amount, extrusion line, and raw material container designation have already been entered. Since the number of treatments according to the production amount is displayed on the display screen of the computer, designation of the product container (for example, No. 11 to 15) is easy. The container number to be specified is automatically displayed from the new container in stock.

The movement of each arrow of the container in the extrusion step is as follows.

[E]: (blend material) rack stock → supply tilt 61 [F]: (raw material empty) → rack stock [G]: (new) rack stock → product tray 62 [H]: (product included) → rack stock If the product receiving container cannot be set,
The work is automatically suspended and a warning is issued, so the operator takes measures such as adding a new container. The product bagging step is performed, for example, as follows. That is, since the data accumulated in the extrusion process performed so far can be displayed as a product-in-container storage table for each line and type, the operator can select the order of the bagging work by looking at the table. In addition to the order of bagging, input items necessary for management of this process, such as destination, classification, and bagging quantity. Here, the moving order of each arrow of the container is as follows.

[J]: (product included) rack stock → bagged tilt 71 [K]: (product empty) → rack stock The washing and drying process is performed automatically for empty containers generated from the lots for which the above processes have been completed. To prepare new containers for the next lot of work. Such internal washing and drying steps of the container are essential requirements that play an important role in achieving the purpose of preventing contamination of the present invention, and the order of movement of each arrow of the container is as follows.

[Description of equipment]

As described above, the present invention relates to a granular material preparation processing facility (system) in which a series of devices are combined and a granular material processing method using the same. Various aspects of the present invention include various devices and operations performed by the devices. There is an organic bond between. The individual devices themselves may constitute a system by combining known devices, but of course, the present invention may be implemented using improved devices suitable for the purpose.

Hereinafter, specific examples of the devices used in the embodiments will be described. In light of the objects and functions of the invention, it is obvious that those skilled in the art can substitute equivalent devices in the state of the art.

Container 10 (Fig. 4): Square container made of stainless steel. Equipped with an input port 15 at the top and a discharge port 16 at the bottom of one side, each port has
A lid sealable with packing is provided.

Temporary placement of lid on top of container (with anti-rotation mechanism)
14 are also provided. . The outlet 16 is provided at the lower part of the side surface. The lid is hinged to the container body at the upper part, and can be locked at the lower part.

On the side, read when entering and leaving the rack stock,
A bar code plate 13 for checking the container number is attached.

Automatic guided vehicle (AGV) 21 (Fig. 5): An electromagnetic induction type automatic forklift suitable for handling the above-mentioned containers is used. Laser guidance, if necessary
Other types of automatic guided vehicles such as optical reflection may be used. Equipped with a special wheel (trade name: Mecanum wheel), spin turn is possible, combined with the arrangement of equipment and taxiway,
It can be operated in a very narrow space compared to a normal forklift. A well-known approach countermeasure device, stop position forcing device and the like are provided for safety.

In this embodiment, an AGV equipped with a container opening lid opening mechanism 22 is used. The lid opening mechanism 22 opens or closes the loading lid unattended by an instruction from the control unit that receives the positional information that the container is placed at the predetermined working position.
Compared to the case where a lid opening mechanism is provided at each work position,
The number of lid opening mechanisms may be small in the whole system.

Rack stock 31: arranged in two rows as shown in FIG. 1 (omitted in FIG. 3), between which a stacker crane (omitted in the drawing) is arranged.

Raw material charging machine 41: It is composed of a raw material hopper, an automatic weighing device, an auxiliary raw material manual charging port, a chute, and the like. When an empty container is set, the chute is automatically connected to the charging port 15 of the container 10.

Blender 51: The container is sandwiched from the diagonal direction, and the movable container itself is rotated as a blend container. Transfer trolley 20: Move on a double track laid between the rack stock 31 and the blender 51, and carry out container transfer between both points,
Necessary items shall be with forks.

Melt extruder 60: The main unit is installed on the first floor of the workplace.

Supply tilt 61: If necessary, place the container with the blended raw materials on the container loading table with the AGV fork, and then tilt the table with the piston.The lock is released by the rotation of the cam bolt at the container discharge port. When opened, the powder is supplied to the melt extruder 60.

On the tilt table, leg supports to correct the container loading position
Sixty-one 61 '(FIG. 6) are provided to correct both front and rear and left and right directions.

Product receiver 62: The compound pellets exiting the melt extruder 60 on the first floor are continuously transported by air force and enter the container of the product receiver 62 installed on the second floor.

Bagging Tilt 71: In accordance with the bagging instructions, the designated product
Moves from the rack stock 31 to the bagging tilt 71,
Product is discharged and bagged. The tilt itself is the same as that of the raw material supply.

Washing / drying machine 81 (FIGS. 7A and 7B): This is a box-shaped unit in which a washing room and a drying room each capable of storing a container are arranged. The washing chamber is provided with necessary water jet nozzles for washing, and the drying chamber is provided with necessary equipment such as a hot air circulation device. The two processing chambers are separated by a movable plate. In each room, the containers are supported and processed by a lifter 82. When the lifter 82 is lowered, the container can be self-propelled by a roller conveyor 83 having an inclined arrangement provided at the bottom. Reference numeral 84 denotes a movable partition wall.

Although the conventional washing / drying machine relies on manual work for lid processing even though it is of an automatic type, in the apparatus of this embodiment,
Container loading / unloading stations are provided on both sides of the box-shaped unit, where the opening and closing of the loading lid and the unlocking of the discharging lid are automatically performed. The loading lid is moved by a chain conveyor that passes over the ceiling of the box-shaped unit, and in the middle of this, passes through the air blow area and is washed. The unlocked discharge lid is opened by gravity when the container is tilted in the cleaning chamber while being attached to the container main body, and is cleaned together with the main body by water spray.

Powder and particle processing equipment including container cleaning, with improvements to automate the removal and installation of the loading lid, cleaning while moving on a separate route from the main body, and simultaneous cleaning with the main body with the discharging lid attached to the container Has been fully automated.

〔The invention's effect〕

According to the present invention, in the preparation of synthetic resin products of various kinds, transfer of each step to a work point, execution of each processing step, realization of substantial automation of powder processing with integrated measures against contamination between various powders are realized. did. This makes it possible to cope with frequent changes in product type and lot size that are often required in the process of processing each granular material of the synthetic resin. In particular, a system using an AGV has less layout restrictions and can realize unmanned operation in a relatively narrow space, as compared with a case where a fixed facility-type transfer means such as a rail traveling crane is used. The system is also flexible, making it easy to respond appropriately to changing conditions, including failures.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are flowcharts for explaining the processing operation of the present invention in this embodiment. FIG. 2 is an operation conceptual diagram of the processing operation of the present invention. FIG. 3 is a bird's-eye view of the facility for implementing the present invention. FIG. 4 is a perspective view of the container 10 for transferring the granular material. FIG. 5 is a perspective view of an automatic guided vehicle (AGV) 21. FIG. 6 is an explanatory view showing the relationship between the leg support and the legs of the container. FIG. 7A is a schematic perspective view of the washing and drying machine 81, and FIG. 7B is a schematic side view of the internal structure thereof. 10 ... container, 11 ... container legs, 12 ... support, 13 ... barcode, 14
… Lid temporary placement table, 15… Inlet, 16… Exhaust port, 20… Transfer trolley, 21… Automatic guided vehicle, 22… Lid opening mechanism, 31… Rack stock, 41… Raw material input machine, 51… Blender, 60 ... melt extruder, 61 ... supply tilt, 62 ... product tray, 71 ... bagging tilt, 81 ... washing and drying machine, 82 ... lifter, 83 ... roller conveyor, 84 ... partition wall.

Continuation of the front page (56) References JP-A-60-87130 (JP, A) JP-A-47-33964 (JP, A) JP-A-64-90227 (JP, A) JP-A-63-252805 (JP) , A) JP-A-1-142811 (JP, A) JP-A-61-232026 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 1/00-1/20 B29B 7/22-7/28

Claims (8)

(57) [Claims] 1. A plurality of granular material transfer containers (10) each having a unique number (13), having an input port (15) and an output port (16), and designated for each lot. A container storage point (30) including a rack stock (31) as a starting point of the movement of the container; and a raw material charging point for metering and charging at least the synthetic resin raw material and its powdery granular raw material as an auxiliary raw material into the container (10). When,
Each of the powder and granule processing operation points including a blending point of the raw materials in the container, a supply point of the raw materials in the container to the melt extruder (60), and a product receiving point of the extruded pellets from the melt extruder (60); A point for washing and drying the inside of the container (10); an unmanned transfer means for moving the container between the container storage point (30) and each of the above-mentioned work points and the washing and drying point of the container;
Automatic synthetic resin product processing equipment comprising: a lot size and container movement control means according to container designation information. 2. The facility for automatically preparing and processing a synthetic resin product according to claim 1, further comprising a bagging point for product pellets as the work point for processing the granular material. 3. An unmanned transfer means for moving a container (10),
A combination of an automatic guided vehicle (21) and fixed transfer means,
3. An automatic preparation equipment for synthetic resin products according to claim 1. 4. The automatic preparation of a synthetic resin product according to claim 1, wherein the melt extruder (60) is installed below the floor of the supply point of the raw material in the container and the product receiving point of the extruded pellet. Processing equipment. 5. The washing and drying point of the container is a box-shaped unit in which a washing chamber capable of storing a container having a water jet nozzle for cleaning and a drying chamber capable of storing a container having a hot air circulation device are arranged. 5. An automatic preparation and processing equipment for a synthetic resin product according to any one of items 1 to 4. 6. A movable plate is provided between a washing chamber and a drying chamber which constitute a washing and drying point, and a lifter (82) for supporting a container and a roller conveyor (83) arranged in an inclined manner are arranged in each chamber. An automatic preparation equipment for synthetic resin products according to any one of claims 1 to 5. 7. An automatic synthetic resin product preparation equipment according to claim 5, wherein container entrance / exit stations are arranged on both sides of the box-shaped unit to automatically open / close the input lid and unlock the discharge lid. . 8. Information on the kind and the size of the lot is inputted to the container movement control means, and further, a granular material transfer container (10) having a unique number for each lot is designated, and according to the information, Container (10) by unmanned transfer means,
At the very least, the raw material input point where the synthetic resin raw material and its granular material raw material as auxiliary materials are metered into the container (10), the blending point of the raw material in the container, and the raw material in the container to the melt extruder (60) For each processing operation at each powder and granule processing operation point consisting of a supply point and a product receiving point of extruded pellets from the melt extruder (60), from the container storage point (30) to each of the above powder and particle processing operation points The containers (10) are sequentially transferred between the container storage point (30) and each of the granular material working points so as to be transferred to the container storage point (30) each time the processing operation is completed, Further, an empty container, which has been subjected to a predetermined processing operation, is internally washed and dried, and is used for the next lot.