JP3364835B2 - X-axis and Y-axis two-dimensional cooling / length adjusting device equipped with pellets - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral device for molding processing that is absolutely indispensable in a so-called general synthetic resin molding factory that performs molding processing. As such, it is no exaggeration to say that this is an industrial application field that covers all general synthetic resin molding factories in Japan. 2. Description of the Related Art In the past, there has been a so-called general synthetic resin molding factory that performs molding processing. In the molding industry that mainly performs the process, there are still various problems related to the method of mixing crushed pieces by a runner crusher with the virgin raw material for molding synthetic resin. From the viewpoint that the point is built in, the crushed pieces such as runners are separately subjected to pelletization regeneration processing based on an extrusion molding machine, etc., and then mixed with the previous synthetic resin molding virgin raw material, While trying the method of reusing, it can be said that the present situation has been reached today. Therefore, the so-called regenerating apparatus for pelletization described above has already been used for some time in several kinds of industries and / or related markets based on the mechanism described above. It is a place where you can see that you are on the road. However, in all of the pellet recycling apparatuses as described above, it can be concluded that they are designed and manufactured under the basic technical background as described below.

That is,. First of all, it is a fact that all of such pellet recycling apparatuses are extremely large in size to cope with a large-volume runner process. It is clear that this was produced with a design intent that should be able to handle a large number of runners and / or several or more types of runners. It can be said that it is inevitable that the area (floor area for installation) becomes extremely excessive. . As a matter of course in relation to the section, its structural mechanism is also complicated and diverse, for example, a kneaded strand continuously fed from a hot screw press is wound around a large drum. However, in that process,
The conventional method has been to rapidly cool and solidify the kneaded strands by strong air blow such as compressed air. From such a constitution means, the installation floor area in the factory is no longer necessary, and there is something that is not excessive. . Furthermore, in place of the air blow of item (1), a large water tub is provided in the vicinity of the hot screw press, and the kneaded strand continuously fed from the hot screw press is immediately It is said to be immersed in water and cooled rapidly. Even in the case of adopting such a method, it is necessary to install a drying device attached to the method, and it is said that the installation floor area will be increased more and more. . Depending on the terms described above, the configuration form will inevitably become larger and so-called “heavy”, but on the price side, it will drop to several million yen per unit. However, it was a substitute for existence as one of the equipments of the problem that was expensive and was not very bulky. . On the other hand, in terms of production, the kneaded strands that continuously flow out are cooled and solidified as quickly as possible, so the various elements described above are not limited, and there are several complicated bypass courses. Therefore, the productivity is extremely low. However, for each type of raw material resin, the processing specifications must be changed one by one, and even at the production site. It was because it was a big burden. . Furthermore, this is further put under the condition that, in the synthetic resin molding process, for example, the color change is performed and each runner pellet must be regenerated for each of a wide variety of synthetic resin raw materials. Without being overwhelmed, the rationalization can be affirmed as one of the distant causes that could not be realized. As described above, in the “synthetic resin raw material pellet recycling apparatus” based on the technology of the conventional known examples, various conditions such as a molding factory currently exist, The fundamental and serious problem of not being able to match has been laid down. [0003] In the preceding paragraph,
As will be described in detail, in the “synthetic resin raw material pellet recycling apparatus” based on the conventionally known technology, in the first place, a number of serious problems caused by fundamental design problems, namely, As one of the peripheral equipment for synthetic resin injection molding machines, the most important point is the excessive problem of the occupied space, and furthermore, the high price problem where heavy and enormous increase is expected ...
In addition to this, in addition to this, the problem of low-efficiency productivity on the site side, which is inevitably caused by various problems, etc., eventually, a serious quality problem related to molded products,
... and so on, with all the themes and themes that have to be resolved as soon as possible. As a result of the examination of the root cause of the source of such serious problems, the root cause of the existence of the whole problem, the following conclusion was reached. It was because I reached. In other words, in the previous section, I touched on this point, but in general, this kind of “synthetic resin raw material pellet recycling apparatus” that is commonly seen today generally has a very simple idea and a design concept that has become rutted. ... and so on, it must be said that it was made. In other words, as already described, in the conventionally known “synthetic resin raw material pellet recycling apparatus”, the strands that are continuously fed from the hot screw press are not cooled and solidified as quickly as possible. Because,
Cooling air blow, or submerging in the water bath, water bath, and finally, complicated complicated detour courses, etc., are installed as large accessories,
It is said that there will be no solution to this problem unless all the means and methods are installed in the vicinity of the hot screw press, in other words, based on insidious ideas and shallow ideas and knowledge, etc. It must be said that it was triggered. That is, as described above, in recent years, there is a tendency to try to regenerate pellets by using an extrusion molding machine for fragments of runners, etc. From the situation that there is a fundamental problem in the pellet molding apparatus itself for reprocessing the target pellets, it is decided to focus on the following points as the problem. . Let's fundamentally break away from the heavy and large rutted pattern. . In essence, the point is to focus on the principle that the cooling time should be kept mechanically. . Based on the terms ~, the idea of replacing the cooling time = cooling length is adopted. . Therefore, the cooling time for each synthetic resin material =
Detailed data collection on cooling length. . The simplest mechanism can be adopted according to the above items. . Based on the previous paragraph, we aim to provide cheap products that are not comparable to conventional products. . Regarding the cooling and solidification of the kneaded strands, a mechanism that can be adjusted in two dimensions in the X direction (horizontal direction) and the Y direction (vertical direction) can be adjusted to realize a completely new cooling length. By adopting a new device, we will be able to offer this kind of peripheral device to the market as a reasonable and super-economic device that is unprecedented ...
It is said. As described above, by taking measures to solve the problem, which consists of the items, all the difficult problems as described above have been cleared at once. Therefore, as a basic design philosophy, the parts for each component element, or even the material, etc. can be made as compact, simple and handy as possible. It was because of the great progress made to solve difficult problems, coupled with the strong promotion. [0004] As described in detail in the previous section, the present invention is the most rational but nevertheless fundamental solution to the realization. As already explained in detail, the functions of peripheral equipment related to injection molding can be more than enough, and the ripple effect based on his implementation is immeasurable. There are things that are much larger. In other words, all the problems were cleared at once, and further, the configuration was extremely simple, etc., the price remained low and low, and the device itself could be made compact and compact, so it was installed Problems such as floor space, etc. are all clear at once, but easy to manufacture, etc., and there are immeasurable practical effects. In this context, the means for solving such problems are roughly
It is as follows. That is, as described in the previous section, although it has been described in detail, the “synthetic resin raw material pellet recycling apparatus” based on conventional publicly known technology is too heavy, especially, extremely long (for example, The mechanical element of the device of the present invention is simply an appropriate diameter and an appropriate length bar (commonly known as a round). A length adjusting bar that allows a guide free roller to be installed at the tip of the steel bar is inserted and stored in a suitable position in the space inside the frame base.
The element / mechanism that can move horizontally in the axial direction, and thus the head / roller element (of course, the element must be perpendicular to the length adjustment bar). , Which operates integrally with the cutting element, etc.), but is present in the pellet reclaiming device equipped with the X-axis and Y-axis two-dimensional cooling length adjustment device for strands, which is constructed by being fixed to one side of the frame base . As described above, depending on the fact that the length and the conventional product are ½, depending on the case, it is 1 Not only stay in the range of ／, but even if it requires a length of ½ to ３, it is simply the length dimension of space. It is what you get. Therefore, the floor space required for efficient use of space,
These problems are now completely unrelated. Therefore, in addition to that, its "required length"
That is, depending on the type of raw material resin used, in other words, from the melt state, corresponding to the time difference until cooling and solidifying, set relatively long, or conversely, The operation such as setting a short time is simply selected by the operation of the driving element (this is a fully automatic motor, a semi-automatic motor, a manual handle type, etc., if necessary). It is because it can be set. As described above, in the apparatus of the present invention, for each type of raw material resin to be used, for example, nylon, polypropylene, polyethylene,... Pull out the bar for a long time until it is full in the X-axis direction, and then move the head roller element in the Y-axis direction perpendicular to the X-axis to the Y-axis.
What is necessary is just to bring it to the state lowered | hung to the axial downward full. On the contrary, in the case of a special raw material resin such as glass fiber, for example, the length adjustment bar is appropriately pushed in the X-axis direction and set to the short side,
The head / roller element in the Y-axis direction may be set appropriately on the Y-axis and operated. If it is a publicly known product, the strand sent out from the hot screw press is cooled and solidified by a large air blow, or submerged in a water bath or water bath. This is because the process of winding the drum once had to be provided, but for these various devices, the device of the present invention was simply referred to as “control of two-dimensional cooling length”. Because of the adoption of a completely new cooling method, no large equipment such as that described above is required, and the quality of the pellet itself (that is, the physical and mechanical properties of the pellet itself) However, all of the single parts that make up the system can be installed in the frame base or on one side of the frame base. From it or the like may be made through storage, Ainari also the effective use of space, difficult problems such as occupying a floor area for the installation becomes a thing that does not exist at all.
Therefore, since the device of the present invention is light, thin, short and small, but its construction mechanism is simple, it is easy to manufacture and inexpensive and inexpensive. Because it will be easier to install in the raw material pellet recycling device,
Needless to say, a general molding factory is excellent in practical effect that it can be immediately introduced and operated even in a relatively small molding factory. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The “X- and Y-axis two-dimensional cooling / length adjusting device-equipped pellet recycling apparatus for strands” according to the present invention is constructed based on the means described above. Therefore, for example, when the present invention “Plastic reclaimer equipped with X- and Y-axis two-dimensional cooling / length adjusting device for strands” is installed in a general synthetic resin molding plant, etc. As is clear from the examples shown in FIGS. 1 and 2, when the molding process is advanced in the molding factory, runners and sprues generated by the operation of the injection molding machine, Hang it on a crusher (generally a general-purpose runner crusher is on the market), and put the crushed pieces such as runners obtained in appropriate amounts through the opening of the hopper (23) shown in FIG. ,
From this hopper (23), it will be supplied to the hot screw press (11) provided directly below it. The runner crushed pieces supplied to the hot screw press (11) are immediately melted by an electric heater (not shown) disposed on the inner peripheral wall of the hot screw pre (11). Depending on the rotational driving force of the screw of the hot screw press (11),
Sequentially kneaded, finally kneaded strand (ST)
As a result, it is combined with being sent out sequentially and sequentially. Thus, the kneaded strands (S
T) passes through a nozzle (13) (of course, having an equivalent diameter corresponding to a pellet of a desired size) attached to the tip of the hot screw press (11). Depending on the circumstances, the kneaded strand (ST) having a desired diameter may be formed in advance, the nozzle (13)
If the kneaded strand (ST) from is further introduced into the feed guide groove roller (14). Here, the feed guide groove roller (14)
The kneaded strand (ST) introduced into the head passes through the guide free roller (16), and is located immediately below the head roller element (19) screwed in the Y-axis direction (II). It will be introduced to. In this state, the kneaded strand (ST) is inserted between the rotation roller (24) and the tension roller (25) in the head roller element (19) while being inserted in the Y-axis direction ( II), and after passing through the suction guide (26), it is cut one after another to the desired size by the cutting element (20) which is the final process, where injection molding is performed by recycled materials such as runners and sprues. As a synthetic resin raw material pellet, it is newly reborn and is reused together with other virgin raw materials. Depending on the type of resin raw material used, in order to cope with the slight difference in time for cooling and solidifying, for example, as shown in the figure, as a drive element (21), a small size instead of a manual handle type The optimum cooling length (X-axis direction (I) and Y-axis direction (I
In each of I)) in a speedy and accurate manner.
The position of the head / roller element (19) can be easily set. Of course, depending on the type of raw material resin, whether to use a manual type or an electric type depends on the recycled pellets. The factors involved, such as the type of raw resin, the amount of processing, the particle size of the pellets, etc., will be determined and selected after careful consideration. DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings, FIG. 1 and FIG. As is apparent from the embodiments shown in the drawings of the present invention, FIG. 1 and FIG. 2, runners and sprues generated by the operation of the injection molding machine in performing molding in a molding factory or the like, First of all, the crushed pieces obtained by running on the runner crusher are hopper (2
When an appropriate amount is introduced through the opening of 3), the hopper (23) supplies the hot screw press (11) provided directly below the hopper (23).
The runner crushed pieces supplied to the hot screw press (11) are immediately melted by an electric heater (not shown) disposed on the inner peripheral wall of the hot screw press (11).・ Screw press (1
According to the rotational driving force of the screw 1), the kneaded strands (ST) are finally sent out sequentially and continuously while being kneaded sequentially. Thus, the kneaded strand (ST) fed out sequentially and sequentially passes through the nozzle (13) attached to the tip of the hot screw press (11), so that the desired strand is obtained in advance. The kneaded strand (ST) of the diameter to be formed is formed,
Further, it is introduced into the feed guide groove roller (14). Here, the kneaded strand (S) introduced into the feed guide groove roller (14).
T) passes through the guide free roller (16), and is further introduced into the head / roller element (19) positioned directly below and screwed in the Y-axis direction (II). . In this state, the kneaded strand (ST) is sandwiched between the rotation roller (24) and the tension roller (25), which are the elements of the head roller element (19). While hanging down in the Y-axis direction (II) and passing through the suction guide (26), the cutting element (20), which is the final process, cuts one after another to a desired size, where recycled materials such as runners and sprues As a result, it is newly reborn as a synthetic resin raw material recycled pellet for injection molding, and is reused together with other virgin raw materials. Depending on the type of resin raw material used, in order to correspond to the slight difference in time for cooling and solidifying, for example, as shown in the figure, as a drive element (21), instead of the manual handle type, The optimum cooling length (X-axis direction (I) and Y-axis direction (I
(I) The positional relationship in each)) is set so that the position of the head / roller element (19) can be easily set quickly and accurately. Depending on whether the manual type or the electric type is used, it is necessary to judge and select the factors related to the recycled pellets, such as the type of raw material resin, the processing amount, the pellet particle size, etc. It is a good problem. As described above, according to the apparatus of the present invention as described above, the optimum cooling length corresponding to the cooling and solidifying time of the kneaded strand (ST) is X-axis direction (I) (horizontal) according to the raw material resin used. Each element that can be adjusted in a so-called two-dimensional direction, which can be adjusted in a very easy and speedy manner, as well as in the Y-axis direction (II) (movable) and Y-axis direction (II). Parts such as a feed guide groove roller (14), a guide free roller (16), a head roller element (19), a cutting element (20), etc., are provided from the frame base (15) on one side (18). Just projecting slightly in the horizontal direction,
Not only can the optimal cooling length be maintained, but also, this is completely independent of the floor space installed,
The fact that it only occupies free space can be said to be a major feature. Of course, the number of component parts is very small, and the practical effects for improving productivity are immeasurable. The structure is simple, the assembly is easy, the operation is easy, and so on. As described above, according to the present invention, the following practical effects are provided. In other words, first of all, if the maximum effect in the apparatus of the present invention is listed, it is considered that this is the kind of “synthetic resin raw material pellet recycling apparatus” that is conventionally known. I could n’t
It can be said that it was replaced with a long-term idea, that is, “cooling time = cooling length”. Therefore, if the effects of various effects are further increased, it is as follows. , The floor area for a large installation is completely irrelevant and unnecessary. . The optimal cooling length for synthetic resin materials can be set instantly. . The element part has a simple structure and can be easily installed and installed on existing equipment. . The element part only occupies free space and does not affect the workshop. . Since the cooling length is set in a two-dimensional direction consisting of the X direction and the Y direction, it is the most reasonable mechanism. . If you install a small electric motor as a drive element,
Work is fast and accurate. . Because the number of components is very small and the structure is simple, it can be offered at a very low cost. . Depending on the space-saving, 4S, that is, organizing and organizing the workplace
Cleaning and cleanliness can be achieved. . According to the above-mentioned items, it is possible to fulfill the responsibility for promotion of rationalization based on the practice of resource recycling and the preservation of the factory environment. Since the present invention has a great practical effect as described above, there is no doubt that it can make a great contribution to this type of molding industry.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention “pellet reclaiming device equipped with an X- and Y-axis two-dimensional cooling / length adjusting device for strands”, partly omitted. A cutaway side view is shown. In the figure, horizontal arrows → → ←
Indicates the adjustment direction in the X-axis direction, and the vertical arrows, ↑, ↓ indicate the adjustment direction in the Y-axis direction. FIG. 2 shows an example diagram and a right side view of FIG. still,
(27) shows a guide shaft. [Explanation of Symbols] 10 X- and Y-axis two-dimensional cooling and length adjusting / adjusting device for pellets Pellet reclaimer 11 Hot screw press 12 Drive motor 13 Nozzle 14 Feed guide groove roller 15 Frame mount 16 Guide free Roller 17 Length adjustment bar 18 One side 19 Head roller element 20 Cutting element 21 Drive element 22 Drive screw rod 23 Hopper 24 Rotation roller 25 Tension roller 26 Suction guide 27 Guide shaft ST Kneaded strand → ← X Direction of adjustment in the axial direction ↑ ↓ Direction of adjustment in the Y-axis direction

Claims (1)

1. A hot screw press (11), a driving motor (12), a nozzle (13) mounted on the hot screw press (11), and a kneaded state Groove roller for feeding guide of strand (ST) (1
4) and other elements are arranged on the frame mount (15), so that they can be used for recycling crushing chips such as runners and sprues generated during injection molding. In the resin raw material pellet recycling apparatus, the hot-screw press (11) and the feed guide groove roller (14) are located immediately below the appropriate position in the space of the frame base (15). X-axis direction (I) can be moved horizontally, and the free end of the exposed portion from the frame base (15)
A length-adjusting bar (17) of an appropriate length, which is supported by a guide free roller (16) of an appropriate diameter and which can be inserted and housed in the frame base (15) placed at the other end, While mounting in the axial direction (I),
The feed guide groove roller (14) is located substantially directly below and is orthogonal to the X-axis direction (I) described above on one side (18) of the frame base (15) to be placed, The driving element (2) is arranged at the lower end so that the head / roller element (19) and the cutting element (20) can move vertically in the Y-axis direction (II).
1) is a pellet reclaimer (10) equipped with an X-axis / Y-axis two-dimensional cooling / length adjusting device for strands, which is characterized in that a screw screw rod (22) for direct connection is installed.