JPH08276425A - Runner crusher with separator and synthetic resin integrated molding system with pellet reclaiming unit - Google Patents

Abstract

PURPOSE: To improve the quality characteristics of a synthetic resin molding by providing a runner crusher with a separator and a pellet reclaiming unit by 1:1 in a synthetic resin molding machine. CONSTITUTION: Synthetic resin virgin raw material L and a cycle material P used at the suitable mixing ratio are stored in a raw material supply tank F, and sequentially supplied corresponding to a working cycle in a synthetic resin molding machine M. A molding product G and a runner R are produced from the machine M at each shot of the cycle. In this case, it is separated to the product G and the runner R in the separator zones of the rubber crushers S, R, C with the separators, and the products G are pooled in a product box. On the other hand, the separated runner R is immediately crushed to previously desired sizing in the crushing element zones of the crushers S, R, C, and the kneaded by pellet reclaiming units P, R, A and finally pelletized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a molding method that is absolutely necessary in a so-called general synthetic resin molding factory where molding is carried out. It is no exaggeration to say that this is the field that covers all fields of general synthetic resin molding plants throughout Japan.

[0002]

2. Description of the Related Art In the past, there have been conventional so-called general synthetic resin molding factories for molding, and recently, mainly aiming at resource recycling, mainly performing precision molding mainly. In the existing industry, it is said that various problems are still built in regarding the method of mixing the crushed pieces by the runner crusher with the virgin raw material for synthetic resin molding and molding. From a point of view, crushed pieces such as runners are separately subjected to pelletizing and reprocessing based on an extruder, and after that, while attempting a method of mixing with the virgin raw material for synthetic resin molding and reusing it, It can be said that the current situation is what has come to the present. Therefore, the so-called regenerating device for pelletizing described above has been based on the mechanism as described above for some time, and several types of similar devices have been used in the seed industry or related markets. There are many places where you can see them on the market. However, it can be concluded that all the pellet regenerators described above have been designed and manufactured under the basic technical background described below.

That is, First of all, it can be said that all of such pellet regenerating apparatuses (machines) are extremely large in size in order to cope with a large-capacity runner process. It is quite clear that the thing was manufactured with a design intent to cope with a large-capacity runner, or several kinds or more of various kinds of runners. ． Therefore, even in terms of momentum and price, it will be one of the expensive and bulky equipments that cost millions of yen per unit. In the process of molding synthetic resin, for example, it was under the environmental conditions that it was necessary to change the color and promote the regeneration of the respective runner pellets for various synthetic resin raw materials. , Is very obvious. ． In the first place, as is clear from the above-mentioned item, under such environmental conditions, while progressing the synthetic resin molding process, for each resin raw material one by one Or it is literally impossible to complete operations such as 100% perfect cleaning and color change to every corner of the element such as pellet regenerator. Alternatively, the presence of different raw materials such as particles in nanometer units is now a fatal serious quality defect that is no longer acceptable, and most of these are sensory tests (visual inspection).
Since it is extremely difficult to discover, it can be said that there are serious problems. As described above, as will be described in detail, in the method of forming synthetic tree legs based on the conventional technology, the process for producing the regenerated pellets of the target runner or the like is At that time, it can be said that the method of producing defective products has been followed without any doubt until today.

[0003]

In the preceding paragraph, as described in detail above, in the method of synthetic resin molding, which is based on the conventional technology, there is a serious quality problem. In particular, the mixing of different raw materials into synthetic resin raw materials and the mixing of all different color raw materials due to color change, etc. are all completed as long as they adopt the synthetic resin molding method based on the conventional technology. No matter how much cleaning, or even careful attention is paid, it has become a serious theme that is difficult to find by visual inspection based on sensory tests. When we investigated and investigated the root cause of the problem, such as the root cause of such problems, we touched on some of them in the previous section. In that sense, insensitive ideas and shallow knowledge,
It must be said that it was caused by ... etc. That is, as described above, in recent years, there is a tendency to try to regenerate pellets by using an extrusion molding machine or the like for crushed pieces such as runners, but in all synthetic resin molding methods, etc. , In the process of reprocessing pellets for that purpose, it is already a definitive defect (that is, mixing different raw materials into synthetic resin virgin raw material, mixing all different color raw materials due to color change, etc.) It is said that the system is built in. Therefore, the object or pellets that are extruded and emerged through such a process can be said to be a defective material in terms of quality. Therefore, that is, a molded product obtained by molding by mixing defective pellets in terms of quality with a synthetic resin resin raw material can be called a defective (defective) molded product in terms of quality without any doubt. In view of such a point, in view of the fact that in order to solve it, it is necessary to fundamentally review the synthetic resin molding processing method currently adopted,
In the present situation, the synthetic resin molding processing method is one set of synthetic resin molding machine, but the runner crusher with separator and the pellet reclaimer etc. which are set to the present, depended on the case by case, but the present invention This is a one-to-one correspondence, in other words, a means of a one-by-one system, and by taking such means, all the problems mentioned above are cleared at once. Was reached.

[0004]

As has been described in detail in the preceding paragraph, the present invention has been made in the most rational and fundamental way to solve the problem, and the appearance thereof has already been seen. As described in detail, all the problems related to the quality of the synthetic resin molded products are cleared at once, and furthermore, due to the extremely simple structure, the price is cheap and cheap, and it is possible to make it compact and compact. As a result, it can be installed and used in existing and known synthetic resin molding machines, etc., and so on, the practical effect is so immeasurable. The means for solving such a problem are as follows. That is, as described in detail in the previous section, in the conventional synthetic resin molding processing method based on publicly known technology, one synthetic resin molding machine is equipped with a separator runner crusher and a pellet crusher. The regenerator and the like were set on a case-by-case basis, whereas the one based on the present invention is a "runner crushing process" in a runner crusher with a separator, and the crushed pieces are used as a pellet reclaimer. Therefore, the pelletizing process, which is used for pelletizing, can be directly connected, and 1: 1 for the synthetic resin molding machine.
It is said that it will be compatible with and will be equipped with an additional equipment.
It can be said that this is a one-by-one system where the pellet regenerators are directly connected to the synthetic resin molding machine and the runner crusher with a separator and correspond one-to-one. By adopting such a synthetic resin molding method, there is a problem of mixing different kinds of raw materials due to mixing of recycled raw materials (meaning raw materials depending on the pellet regeneration device) into synthetic resin virgin raw materials during synthetic resin molding processing. Alternatively, problems such as mixing of all different color raw materials at the time of color change, etc., various quality problems have been completely solved.

[0005]

The "integrated synthetic resin molding system equipped with a runner crusher with a separator and a pellet regenerating device" according to the present invention is constructed based on the above-mentioned means, and therefore, for example, the "synthetic resin according to the present invention" is used. In the case where a structure based on "integrated molding method" is installed side by side with a molding machine in a general synthetic resin molding factory, as is clear from the flowchart shown in Fig. 1, first, the synthetic resin virgin The raw material (L) and the recycled material "pellet (P)" that is mixed and used under a proper mixing ratio are the raw material supply tank (F).
It is stored in (indicated by a chain double-dashed line), and the raw materials are successively supplied while corresponding to the work cycle in the synthetic resin molding machine (M). Thus, the molded products (G), ... And the runners (R), ... Are successively ejected from the synthetic resin molding machine (M) in each sail cycle of the work cycle. Therefore, first, a runner crusher with a separator (SR
In the separator zone of C), the molded product (G), ...
, And the runners (R), ..., and the molded products (G), ... are pooled in the product box, respectively, while the separated runners (R), ... are immediately separated by the runner crusher with separator (S). .RC) in the crushing element zone,
In advance, it will be crushed to a proper sizing desired. Then, the crushed fragments of the runners were
Immediately connected directly to the pellet regeneration device (PR.
In A), immediately from the molten state, it is kneaded by an extrusion molding machine (for example, a screw type) and extruded in a strand shape or a straight shape at the end, and a suitable size at the final stage. It is then cut into pellets. That is, the one in the "synthetic resin integrated molding method equipped with a runner crusher with a separator and a pellet regenerating device" based on the present invention is the most rational with respect to the runner that accompanies each cycle of the molding work. In addition, the present invention can be an extremely highly practical invention where it can be completely processed.

[0006]

EXAMPLE An example of a synthetic resin integrated molding system equipped with a runner crusher with a separator and a pellet regenerator according to the present invention will be described with reference to the flowchart shown in FIG.
For example, in the case where a structure based on the "integrated synthetic resin molding method" of the present invention is installed side by side with a synthetic resin molding machine in a general synthetic resin molding plant,
As is clear from the flow chart shown in Fig. 1, first, the recycled material "that is, pellets (P)" that is mixed and used with the synthetic resin virgin raw material (L) at a proper mixing ratio
And are temporarily stored in a raw material supply tank (F) (indicated by a chain double-dashed line in the figure), and the raw materials are sequentially supplied while corresponding to the work cycle in the synthetic resin molding machine (M). Becomes
Thus, the molded products (G), ... And the runners (R), ... Are successively ejected from the synthetic resin molding machine (M) for each shot of the work cycle. In this place,
First, in the separator zone of the runner crusher with separator (SRC), the molded product (G), ... And the runner (R), ..
... are pooled in the product box, while the separated runners (R) are immediately sized appropriately in the crushing element zone of the runner crusher with separator (SRC). Until then, it will be crushed. However, the crushed pieces of the crushed runners are immediately kneaded and kneaded by the pellet reclaiming device (P.R.A.) installed side by side to be extruded into a strand shape or a straight shape at the end, At the stage, it is cut into an appropriate size and pelletized. Incidentally, in the "integrated synthetic resin molding method equipped with a runner crusher with a separator and a pelletizing and regenerating device" based on the present invention, each element is a synthetic resin molding machine and its peripheral equipment, etc. Depending on the situation, the layout will be made appropriately, but since each element is relatively compactly packed, a great amount of space can be saved, so that the workplace can be organized, tidy, cleaned, etc. The work environment will be improved, and a remarkable improvement in the work environment will be achieved.

[0007]

As mentioned above, according to the present invention, the following practical effects can be obtained. First of all, the greatest effect of the present invention is that the improvement of the quality of the synthetic resin molded product in the field of general synthetic resin precision molding, especially in the general synthetic resin molding factory, was thought to be the case. There would be a huge amount. Further, the following is a detailed and detailed list of the greatest effects. ． It is expected that the quality characteristics of synthetic resin molded products will be significantly improved. In particular, it can be expected to improve the physical properties of synthetic resin molded products. ． During the synthetic resin molding process, troubles such as mixing problems of different color raw materials at the time of color change are completely cleared. ． Despite the above items, the basic structure of the invention is extremely simple. ． Therefore, the price is low and cheap, and it is very easy to install it on a conventionally known molding machine in operation. ． By being able to lay out around the synthetic resin molding machine,
It is possible to save space in a synthetic resin molding factory, and at the same time, it is possible to organize, organize, clean, and so on, and as a result, productivity can be improved. As described above, according to the appearance of the synthetic resin integrated molding method according to the present invention, it is rational and economical, and the practical effect is extremely large. Therefore, it is possible to make a great contribution to this kind of industry. There is no doubt anymore.

[Brief description of drawings]

According to the present invention, "a synthetic resin integrated molding system equipped with a runner crusher with a separator and a pellet recycling device"
1 is described with reference to the flow chart of each element in FIG. 1, and in particular, the two-dot chain line in the figure represents the raw material supply tank, and the arrow (→) that can be entered in the flow chart is The frame (thin practice) in which the physical distribution direction related to the element and all the elements are included is a schematic representation of the constitution of the present invention, "synthetic resin integrated molding method".

[Explanation of symbols]

 F Raw material supply tank G, ... Molded product L Synthetic resin virgin raw material M Synthetic resin molding machine P Pellet P. R. A Pellet reclaimer R, ... Runner S. R. C Runner crusher with separator

Claims (1)

[Claims] 1. A synthetic resin molding machine (M) is directly connected to a runner crusher with separator (SRC) and a pellet regeneration device (PRA) in a one-to-one correspondence. Depending on the configuration of the equipment installed side by side, the molded product (G) that is knocked out one after another from the synthetic resin molding machine (M) at each shot of the molding work cycle, and the runner that accompanies the following ( Regarding R), ..., First, in the separator zone of the runner crusher with separator (S.R.C.), the molded products (G) ,. , The separated runners (R), ... Then, in the runner crusher zone of the runner crusher with a separator (SRC), the runners (R), ... Run with The pellet reclaiming device (P.R.A.), which is directly connected to the crusher (S.R.C.) and can be used together, allows the crushed pieces to be immediately mixed and used as the virgin raw material for synthetic resin molding. Since it can be reprocessed into pellets, it is characterized by being able to consistently carry out synthetic resin molding process rationally and under pure conditions.
Synthetic resin integrated molding system equipped with a runner crusher with separator (SRC) and pellet reclaimer (PRA).