JP2002348598A - Molding machine of kneaded material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding machine of a kneaded material, having a high productivity, and capable of continuously and smoothly molding the kneaded material without causing bad state at the time of molding. SOLUTION: This molding machine of the kneaded material has a shaft part, a driving means for rotating the shaft part, the first to the third turntables, the first and the second fixed plates, fixing means of the fixed plates, a molding unit comprising the first pounder, a mortar and the second pounder, and a structure for making the first and the second pounders of the molding unit carry out prescribed reciprocative movements, and is constituted so that the charging, the molding and the discharging may be carried by making the direction of the charging of the kneaded material feedstock to the mortar, and the direction of the discharging of the kneaded material product from the mortar the same.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a kneaded material molding machine,
More specifically, kneaded materials of various properties are molded to produce products of a predetermined size and shape, specifically, for example, pharmaceuticals, bactericides, insecticides, soaps, crayons, lipsticks, and the like, with high quality and The present invention relates to a kneading product molding machine that can be manufactured with high productivity.

[0002]

2. Description of the Related Art Conventionally, in order to mold a kneaded material (which may be in the form of a clay or a wax, for example), the kneaded material to be molded is cut into an appropriate length and size, and a molding metal is formed. There are known a method of placing at a predetermined position of a mold and molding, and a method of continuously molding a continuously supplied kneaded material. Also,
In order to prevent the kneaded material from adhering to the mold during molding, a through hole is provided inside the mold, and cooling water is flowed through the through hole to cool the mold.

Various apparatuses have been conventionally proposed as a kneaded material molding machine (molding machine). For example, JP-A-8
No.-127800 includes a mold body having a molding hole, a movable mold that can be inserted and removed from one opening side in the molding hole, and a movable mold that can be inserted and removed from the other opening side. In the apparatus for stamping and molding the soap between the surface and the stamping surfaces of both movable molds, when separating the two movable molds from the stamped and molded soap, the force required to separate the soap from one of the movable molds is used. Means are provided to increase the force required to separate the soap from the other movable mold, and the molding hole is formed so that the soap can follow the movement of the one movable mold in the direction away from the soap. Discloses a soap molding apparatus in which at least a part of an inner peripheral surface of the soap molding device has a tapered surface inclined with respect to a moving direction of a movable mold.

In a soap molding apparatus disclosed in Japanese Patent Application Laid-Open No. 8-127800, a molding unit is formed from a mold body and two movable molds provided on both sides of the mold body. Are located in By the way, in order to reduce the installation area of the molding machine and improve the productivity per unit area, it is preferable that the molding units are arranged, for example, in a ring form rather than being arranged linearly. preferable. This is an example of powder compression molding. For example, Japanese Patent Application Laid-Open No. Hei 8-71799 discloses an ascending slope on which a track contact portion having a circular cross section formed at the lower portion of a steel lower punch which is moved together with a turntable slides. The turntable is provided by a steel weight adjustment track having a slanted track portion having a weight setting surface on which the slope contact portion slides horizontally from the inclined upper end of the rising slope. In the rotary powder compression molding in which the height position of the lower punch inserted from below into the die hole of the die attached to the die is set so that the filling depth of the powder material into the die is determined. A rotary powder compression molding machine provided with magnetic attraction means for the lower punch, at least over the range of the inclined track portion side and the inclined track portion of the horizontal track portion in the weight adjustment track. It has been disclosed.

[0005]

It is very important to improve the productivity in molding the kneaded material, and the following three are particularly important among the matters to be considered at this time. To use a plurality of molds (molds) and reduce the molding time (cool the molds efficiently). To reduce the installation area of the molding machine and increase the number of processes per unit area. To promptly carry in the kneaded material into the mold and carry out the kneaded product from the mold.

[0006] The above-mentioned (1) will be described in detail below. <About> If the number of molds to be mounted on the molding machine is one, a through hole is opened in the mold, and if the coolant liquid can be introduced into this hole to sufficiently cool the mold, the productivity is increased. For the purpose of improving the quality, the molding time per product has conventionally been shortened. However, if the molding time is shortened with an emphasis on the productivity of the product, troubles such as adhesion of the kneaded material to the mold easily occur even when cooling one mold. If the kneaded material adheres to the mold, the product is naturally damaged or deformed, and the quality is deteriorated. The use of a plurality of dies naturally improves the productivity as compared with the case of using one dies, but it is very difficult to efficiently cool the plurality of dies. Therefore, shortening the molding time is more difficult than in the case of using one mold. Further, it is necessary to devise a mechanism for cooling a plurality of dies so as not to be too complicated.

<Regarding> If the molding machine requires a large installation area, the number of treatments per unit area (for example, the number of kneaded materials molded) decreases. Therefore, especially in the case of a molding machine having a plurality of dies, it is preferable that the molding machine has a structure that does not require a large installation area.

<Regarding> In order to increase the number of moldings per unit time, it is preferable to rapidly carry in the kneaded material material into the mold and carry out the kneaded material product from the mold.
Therefore, it is necessary to select a suitable loading and unloading method so that the loading and unloading can be performed quickly.

In the soap molding apparatus disclosed in Japanese Patent Application Laid-Open No. 8-127800, a plurality of molding units are linearly arranged, so that all the molding units can be uniformly cooled and the number of treatments per unit area can be reduced. It is difficult to increase.
Therefore, it is difficult for the molding apparatus disclosed in Japanese Patent Application Laid-Open No. 8-127800 to solve the above problems. Further, in the rotary powder compression molding machine disclosed in Japanese Patent Application Laid-Open No. 8-71799, an object (powder) carried into a die from a predetermined direction is molded into a predetermined shape, and then is formed from the die in the predetermined direction. (The molded article is pushed back in the direction opposite to the carrying-in direction). Therefore, JP-A-8-71
In the rotary powder compression molding machine disclosed in Japanese Patent No. 799, the moving direction of the molded article and the molded article are not the same, and the moving direction of the molded article and the molded article are not the same. It must be performed from the direction (in this case, the direction in which the molding object is carried in), and it is difficult to solve the above problem. As described above, it is difficult to solve the above problems (1) to (5) with the conventional technology. Therefore, in molding various products having different sizes and shapes from kneaded materials of various properties, a kneaded material molding machine capable of obtaining high-quality products while maintaining high productivity has been desired.

The present invention has been made to solve the above-mentioned problems of the prior art, and has as its object to have high productivity, to adhere a kneaded material to a molding die and to prevent cracks in the molded product. An object of the present invention is to provide a kneaded material molding machine capable of continuously and smoothly molding a kneaded material without causing molding trouble such as generation.

[0011]

Means for Solving the Problems The inventors of the present invention have made intensive studies on the mechanism that causes an obstacle when molding a kneaded material. As a result, it has been found that the surface temperature of the mold to be molded greatly affects the obstacle. It has been found that the time also greatly affects the molding failure, and by lowering the surface temperature of the mold and shortening the molding time, the molding die (specifically, For example, it has been found that the kneaded material does not adhere to a punch and / or a die, and the kneaded material can be smoothly molded while maintaining high productivity, and the present invention has been completed. That is, the kneaded material molding machine of the present invention,
(i) a linear shaft (1), (ii) a driving means for rotating the shaft (1), and (iii) a shaft rotatable by rotating the shaft (1). A first turntable (2) pivotally mounted on the section (1); and (iv) a rotatable pivotally mounted on the shaft (1) by rotating the shaft (1); and A second turntable (3) mounted on one side of one turntable (2);
(v) a third rotating unit rotatably mounted on the shaft unit (1) by rotating the shaft unit (1) and mounted on the other side of the first turntable (2); Panel (4) and (vi) the shaft part
Even if (1) is rotated, it is unrotatably attached to the shaft (1),
And a first fixed plate (5) mounted on the second rotary plate (3) on the opposite side of the first rotary plate (2); and (vii) the shaft portion.
Even if (1) is rotated, it is unrotatably attached to the shaft (1),
And a second stationary plate (6) mounted on the third rotating disk (4) on the opposite side of the first rotating disk (2), and (viii) the first stationary disk (5) and Fixing means for the second fixing plate (6),
(ix) in the first turntable (2), a plurality of dies (8) provided on the same circumference at predetermined intervals and provided on both sides, and (x) A plurality of first punches (7) arranged on the same circumference at predetermined intervals in a second rotating disk (3), and (xi) the third rotating disk (4). A plurality of second punches arranged on the same circumference at predetermined intervals.
(9) and (xii) an annular first track rail (14) provided on the first rotating plate (5) side on the first fixed plate (5).
(Xiii) the third rotating disk on the second fixed disk (6)
(4) a kneaded material molding machine for molding a kneaded material product from a kneaded material, comprising: an annular second track rail (15) provided on the side; (xiv) the first punch (7) and the mortar
(8) and the second punch (9) are arranged on the same axis to form one molding unit, (xv) the first fixing plate
(5) and between the second fixed disk (6), the first rotating disk (2), the second rotating disk (3), and the third rotating disk (4)
When rotating together in the same direction, the first track (14) performs a predetermined reciprocating motion on the first punch (7), and the second track rail (15) performs the predetermined reciprocating motion. A predetermined reciprocating motion is performed on the second punch (9), whereby the following steps are performed in accordance with the rotation: (a) The second punch (8) is moved to the side of the second rotating disk (3). To move the die to the end face of the second punch (8).
(8) a step of closing one of the openings, (b) the first punch
By pressing the kneaded material loaded between (7) and the mill (8) against the third rotating disk (4) side with the end face of the first punch (7), (C) pushing the kneaded material pushed into the mortar (8) from the other opening of the mortar (8) to the position of the second punch (8). A step of pressing the third rotary disk (4) with the first punch (7) in the held state to form the kneaded product,
(d) The first punch (7) and the second punch (8) are moved to the third rotating disk (4) side, and the kneaded product is transferred to the third rotating disk (4). ) Side is carried out (hereinafter referred to as "a"). The following kneaded material molding machines are preferred. B) the shaft portion (1) has a through hole formed along the axis, and a coolant liquid inlet (10) is formed at one end of the through hole;
A coolant liquid outlet (11) is formed at the other end, and a portion of the through hole corresponding to the first turntable (2) has a die (8).
A kneaded material molding machine having a refrigerant liquid port for supplying a refrigerant liquid to the kneaded material. C) the first punches (7) or the second punches (8) of the plurality of molding units are each divided into time units in which the total time required for a series of molding steps is equally distributed by the number of the molding units. At equal intervals, at different positions distributed on the orbit of the first track rail (14) or the second track rail (15),
When the rotation is continuously performed, the plurality of molding units sequentially perform individual steps in a series of molding steps including the steps (a) to (d), thereby continuously producing the kneaded product. Molding machine for kneaded material of (a) and (b). D) An inclined surface is provided on the inner peripheral surface of the end of the mill (8) on the side where the kneaded material is carried in so that the inner diameter increases toward the outside. Kneading molding machine.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The shaft portion is usually made of metal and formed linearly. Further, the shaft portion usually has a through-hole formed along an axis as a flow path of the refrigerant liquid. For example, a refrigerant liquid inlet is formed at one end of the through-hole, and the refrigerant liquid is formed at the other end. An outlet is formed. The form of the through-hole may be appropriately selected so that a location (for example, a die) where the coolant liquid is to be cooled can be efficiently cooled. For example, the through hole may be formed continuously from one end to the other end of the shaft portion, and may be branched therefrom as desired, or the through hole is
It may be formed in several parts, for example, a coolant port for supplying coolant to the die may be provided, and these coolant ports may be connected by a suitable line (for example, a cooling water tube). .

The material, size and shape of the shaft portion, and the size and shape of the coolant liquid inlet and the coolant liquid outlet formed in the shaft portion are determined in consideration of the kind of the kneaded material, the size and shape of the molding machine, and the like. It may be appropriately selected. Conventional driving means can be used as the driving means for rotating the shaft portion at a predetermined number of rotations. For example, the driving means may be a combination of a power generation source such as a motor, a power transmission means such as a pulley, a belt, a chain, and a reduction mechanism such as a gear. In a form rotatably mounted on the shaft by rotating the shaft, for example, in a form directly fixed to the shaft, or, for example, fixed to the shaft via a speed reduction mechanism In the embodiment, a first turntable (referred to as such for convenience, and the same applies to other turntables) is provided. Also, on both sides of the first turntable, in a similar manner, a second turntable (one side of the first turntable)
And a third turntable (the other side of the first turntable)
Each is provided. Further, on the opposite side of the first turntable of the second turntable, the first turntable is attached to the second turntable by rotating the shaft so that the second turntable cannot rotate. On the opposite side of the third rotating disk from the first rotating disk, a second fixed disk is mounted in a similar manner. In order to make the first turntable and the second turntable non-rotatable (so that they do not rotate with the rotation of the shaft) even when the shaft is rotated, suitable fixing means (for example, a bogie or the like) The first turntable and the second turntable are fixed to a floor or the like.

A plurality of dies are provided in the first turntable and arranged on the same circumference at predetermined intervals. The mortar is open on both sides so that a punch can be inserted into the mortar from both sides. The size and shape of the mill are appropriately selected according to the type and shape of the kneaded material to be molded. A plurality of first punches (or A punches) are provided in the second turntable and arranged on the same circumference at predetermined intervals, and a predetermined interval is provided in the third turntable. Are arranged on the same circumference to provide a plurality of second punches (or B punches). The first punch, the die, and the second punch are arranged on the same axis and To form one molding unit.

The material of the molding unit composed of the mortar, the punch A and the punch B is not particularly limited, and an appropriate material may be selected according to the material to be molded. The material is generally an alloy tool steel, and a material usually called SKS (JIS) can be used. When the kneaded material has abrasion resistance, it is preferable to use a superalloy (super steel) having excellent wear resistance and impact resistance, and when the kneaded material is acidic, It is preferable to use stainless steel and plastics. Further, if necessary, a film of chromium, boron, diamond black, titanium nitrate, amorphous silicon or the like may be formed on the surface of the molding unit. Mortar, A punch and B
The size and shape of the molding cavity formed by the punch may be selected from various sizes and shapes according to the desired kneaded product. Specific shapes include, for example, a circle, an ellipse, a triangle, and a rectangle. And the like.

An annular first track rail is provided on the first fixed board on the side of the second rotary board. In addition, an annular second track rail is provided on the third rotating disk side on the second fixed disk. The track rail is simple, has few failures, and is easy to maintain. The first track rail and the second track rail, between the first fixed plate and the second fixed plate, the first turntable, the second turntable and the third A mechanism for causing the first punch and the second punch of the molding unit to perform a predetermined reciprocating motion when the turntable and the turntable are rotated together in the same direction (rotary type). May be, for example, in the form of a ridge formed by combining a flat portion and an inclined portion with a plane that comes into contact with the punch. One end of the first punch and the second punch in contact with the plane may be provided depending on the state of the plane (for example, whether it is a flat part or an inclined part, or a height from a fixed platen). Is increased, unchanged, or lowered), to move the first punch and the second punch, for example,
It is preferable to mount a roller or a ball bearing.

With the rotation, the following steps are performed. (a) The second punch (8) is moved toward the second turntable (3), so that the end of the second punch (8) is
(8) a step of closing one of the openings. Thereby, for example, a cylindrical recess (cavity) is formed between the die and the second punch. (b) mixing the kneaded material introduced between the first punch (7) and the mill (8) with the end face of the first punch (7); Pressing the mortar (8) into the mortar (8) from the other opening of the mortar (8). Thereby, a predetermined amount of the kneaded material to be molded is carried into the die. (c) holding the position of the second punch (8) with the kneaded material pressed into the die (8),
(7) a step of pressing toward the third turntable (4) to form the kneaded product. Thus, the kneaded material is molded into a kneaded product (for example, a tablet) having a predetermined shape (for example, a disk shape). (d) The first punch (7) and the second punch (8) are moved to the third rotating disk (4) side, and the kneaded product is transferred to the third rotating disk (4). The process of unloading to the side. Thereby, the kneaded material product is carried out to the side opposite to the side where the kneaded material is carried in.

In the present molding machine, each of the first punches (7) or the second punches (8) of a plurality of the molding units is used to determine the total time required for a series of molding steps by the number of the molding units. If it is configured to be at different positions distributed on the orbit of the first track rail (14) or the second track rail (15) at equal intervals for each distributed time unit, the rotation is continuous. When performed, a plurality of the molding units,
By sequentially performing the individual steps in a series of molding steps including the steps (a) to (d), the kneaded material product is efficiently and continuously produced.

If the shape of the molding unit is devised, molding of the kneaded material becomes easy. For example, if an inclined surface is provided on the inner peripheral surface of the end of the mill on the side where the kneaded material is carried in so that the inner diameter increases toward the outside, excess kneaded material is reduced during kneading. Is automatically discharged to the loading side, so that excess kneaded material can be easily processed.

As described above, in the molding unit, carrying-in, molding, and carrying-out are performed by setting the direction in which the kneaded material is carried into the mill and the direction in which the kneaded product is carried out from the mill. As described above, when the direction in which the kneaded material is carried into the die and the direction in which the molded kneaded product is carried out of the die are the same, the flow of the kneaded material and the kneaded product is unified in one direction, and the conventional molding method is used. Machine (for example,
As compared with the case where the kneaded material and the kneaded product move reciprocally along the same route as in the case of a rotary powder compression molding machine disclosed in US Pat. In addition, it is easy to quickly carry out the kneaded product from the molding die.

The present molding machine can be applied to various kneading materials for molding. The kneading material for molding that can be used in the present molding machine may be a kneading material having no molding hindrance, but a kneading material that easily causes molding hindrance, particularly a kneading material that easily adheres to a die or a punch during molding. It may be a material. The present molding machine is particularly effective in molding a kneaded material in which molding failure is likely to occur. Specific examples of the kneaded material include a thermoplastic material, a kneaded material using water and a solvent as a binder, a soap material, and the like. In the kneaded material, a single or a plurality of active ingredients can be blended in a predetermined ratio depending on the purpose.
The type of the active ingredient is not particularly limited, and includes, for example, pharmaceuticals, bactericides, insecticides, acids and alkalis, surfactants, and the like.

The content of the active ingredient in the kneaded material is as follows:
It can be varied over a wide range depending on the type and activity of the active ingredient. For example, a soap material may contain 99.9% by weight or more of a surfactant, while a pesticide material may contain a trace amount of a pesticide of 0.001% by weight.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the accompanying drawings by way of examples and comparative examples. The following examples are merely for explanation, and the present invention is not limited to these examples. It is not limited by. FIG. 1 shows a perspective view (schematic configuration diagram) of a kneaded material molding machine according to one embodiment of the present invention. In this example, a first rotating plate 2 (fixed to the shaft portion 1), a second rotating plate 3 (fixed to the shaft portion 1), and a third rotating plate 4 (the shaft 1), a first fixed plate 5 (fixed to the cart 16 in FIG. 2) and a second fixed plate 6 (fixed to the cart 16 in FIG. 2). In this case, 16 sets of molding units each including a first punch, a die, and a second punch are provided on a columnar main body as a whole, and it can be seen that the whole is designed to be very small and lightweight.

FIG. 2 is an explanatory view (schematic vertical sectional view of a main part) of the kneading product molding machine of FIG. A first punch 7 (hereinafter, also referred to as A punch) is attached to the second rotary disk 3, and a second punch 9 (hereinafter, also referred to as B punch) is mounted to the third rotary disk 4. It is combined with a die 8 attached to the first turntable 2 to form one molding unit. The shaft portion 1 is provided with a through-hole for flowing the coolant liquid along the axial direction thereof. A coolant liquid inlet 10 is provided at one end of the shaft portion 1 and a coolant liquid outlet 11 is provided at the other end. , Respectively. The refrigerant liquid inlet 10 and the refrigerant liquid outlet 11 can be connected to an appropriate refrigerant liquid supply source by a rotary joint 12 and a rotary joint 13, respectively. Further, in this example, the through holes are divided into left and right portions in FIG. 2, and refrigerant liquid ports 19 and 20 are provided on the first rotating disk 2. The coolant liquid ports 19 and 20 are connected by, for example, a tube for cooling water. The first fixed plate 5 has a first track rail 14 (hereinafter also referred to as an A track rail),
The second fixed plate 6 is provided with second track rails 15 (hereinafter also referred to as B track rails), respectively, and includes the first rotary plate 2, the second rotary plate 3, and the third rotary plate. By rotating 4 around the shaft 1, the A punch and the B punch can reciprocate in a predetermined manner. The molding machine shown in FIG. 2 is entirely mounted on a cart 16 having wheels and is movable.

FIG. 3 shows a plan view (FIG. 3 (a)) and a side view (FIG. 3 (b)) of the second rotating disk 3 of the molding machine shown in FIG. The second rotating disk 3 is provided with through-holes 17 through which the 16 first punches 7 pass, which are arranged on the same circumference. Further, a through hole 18 for passing the shaft portion 1 is provided in a central portion of the second rotating disk 3.

<Description of Operating State of Kneading Material Molding Machine of the Present Invention> FIG. 4 is a punch operation diagram based on a punch stroke in a molding process (one rotation process) of a kneading material material using the molding machine. In FIG. 4, the positions of the tips of the A punch and the B punch at various stages of one rotation process are shown as lengths (mm) from the reference point. FIG. 5 is a view for explaining the actual movement of the punch in the molding step of FIG. Hereinafter, based on FIG. 5, and if necessary, the aforementioned FIGS.
The operation state of the molding machine will be described with reference to FIG. Note that the following description is made with respect to one molding unit for convenience.
The molding machine of FIG. 4 has a capacity of 2 revolutions / minute, and when the rotation is performed continuously, the A punch or the B punch of a plurality of molding units each consumes the entire time required for a series of molding steps. At equal intervals in time units equally distributed by the number of molding units,
Since it is located at different positions distributed on the orbit of the A track rail or the B track rail, a plurality of molding units sequentially pass through individual steps in a series of molding steps. Accordingly, continuous production is performed with high productivity.

In FIG. 2, a rotatable first rotating plate 2
In the circumferential direction, a plurality of dies 8 are mounted at predetermined intervals. The first turntable 2 holds a plurality of first punches 7 (A punches) provided corresponding to white 8 so as to be slidable in the left-right direction in the figure. The third rotary disk 4 (the B punch holding disk) for holding the B punch provided corresponding to the mill 8 slidably in the left-right direction in the figure is rotated coaxially. The head of A punch (ball bearing structure) contacts the first track rail 14 (A punch track rail in FIG. 5), and the head of B punch (ball bearing structure) contacts the second track rail 1.
5 (B punch rail of FIG. 5).

In the filling zone (push-up track) of FIG. 5, the A-punch track rail (left side in FIG. 5) protrudes toward the B-punch side as the second turntable 3 rotates, and moves the A-punch into the compression zone (stationary track). In the decompression zone (unloading track),
The A punch track rail further projects toward the B punch side. Therefore, the kneaded material 22 filled with the kneaded material 21 in the filling zone in the filling zone with the rotation of the second turntable 3 is continuously moved by the A punch moving to the B punch side in the compression zone. The compression-molded and compression-molded tablet 23 is continuously carried out from inside the mill 8 to the B-punch side by the A-punch moving to the B-punch side in the demolding zone (unloading track).

FIG. 6 shows an example of a method of cooling a molding die in the present molding machine. As shown in FIG. 6, each of the A punch, the die (attached to the die mounting plate), and the B punch is provided with a flow path (through hole) for flowing the refrigerant liquid, and the refrigerant liquid is It flows in from one opening of the flow path and flows out from the other opening. In the mold of FIG. 6, the refrigerant liquid pressure-fed from a cooling device (not shown) is supplied to the rotary joint 1 of FIG.
2 into the shaft portion 1 and a plurality of A punches (first punches 7);
The mortar 8 and the B punch (the second punch 8) are each cooled, flow out of the rotary joint 13, and return to the cooling device. The coolant liquid can cool the entire mold by such a series of movements.

Various methods may be used for cooling the mold in the molding machine. FIG. 7 shows some examples of different refrigerant liquid circulation routes. FIG. 7 shows a refrigerant liquid circulation route in the case of FIG. FIG. 7 shows two refrigerant liquid circulation routes (a first route for cooling the punches and dies,
2 shows a refrigerant liquid circulation route in the case of dividing into a second route for cooling the punch. FIG. 7 shows a case where the refrigerant liquid circulation route is divided into three (a first route for cooling the punch A, a second route for cooling the die, and a third route for cooling the punch B) by the distribution valve. 3 shows a refrigerant liquid circulation route. The refrigerant liquid circulation route in FIG. 7 is specifically configured by arranging respective devices as shown in FIG. 8, for example.

FIGS. 9 to 11 are diagrams for explaining the movement of the mold during molding in the molding machine. As shown in FIG. 9, the kneaded material carried between the punch A and the mortar (the mortar mounting board) is then pressed rightward in the figure by the punch A as shown in FIG. And (B
The punch is moved to a predetermined position in advance), is sandwiched by the A punch and the B punch, and is molded (in this example, it is molded into a tablet by pressing with the A punch). The molded tablets are
Next, as shown in FIG. 11, the punch A is further pressed rightward in the figure (the punch B has been moved to a predetermined position in advance) and is carried out of the die.

In order to suitably mold the kneaded material, various modifications may be made to the punch and the die. 12 to 14
On the inner peripheral surface of the end of the mill where the kneaded material is carried in,
FIG. 9 is a diagram for explaining the movement of a mold and the behavior of a kneaded material during molding in the present molding machine using a die provided with an inclined surface (tapered portion) such that the inner diameter increases toward the outside. is there. The inclination angle of the inclined surface may be appropriately selected.

In FIG. 12, when the kneaded material is pressed by the punch A and the punch B, a part of the excess kneaded material is discharged from the tapered portion to the punch A side. As shown in FIG. 13, when the kneaded material is further pressed by the A punch, excess kneaded material is further discharged from the tapered portion toward the A punch, so that the inside of the molding cavity formed by the A punch, the die, and the B punch. Can be constant. At the stage shown in FIG. 13, the overall shape of the product tablet is adjusted. The molding pressure may be changed according to the indentation size.

After molding the product tablet, as shown in FIG.
The product tablet is extruded with the punch A into the punch B. As a result, the product tablet and the extra kneaded material can be separated and transported from different directions. That is, by providing the tapered portion as shown in FIGS. a) It is easy to push the kneaded material into the die. b) Since the excess kneaded material is automatically discharged to the side where the kneaded material is carried in (the side opposite to the side where the kneaded product is carried out) during molding, the excess kneaded material is easily processed. c) Excess kneaded material is prevented from adhering to the kneaded product as scum.

FIG. 15 shows an example of an actual kneaded product molding machine according to the present invention. FIG. 16 is an enlarged view of a molding unit of the actual machine in FIG.

<Performance evaluation test of kneaded product molding machine of the present invention> An example in which a kneaded product is molded using the present molding machine shown in FIG. 15 is shown together with comparative examples. A) Preparation of kneaded material 99.9% by weight of nonionic surfactant (pluronic type)
And a material comprising 0.1% by weight of a dye were mixed, heated, kneaded, and extruded to obtain a predetermined amount of kneaded material. B) Molding Example 1 Cooling water (refrigerant liquid) is passed through the A punch, the B punch and the die. A punch, B
Approximately 1 press and hold time in a molding unit consisting of a punch and a die
At 0 seconds, a kneaded product was molded from the kneaded material prepared in a) above. C) Molding Comparative Example 1 A kneaded product was molded in the same manner as in Molding Example 1 except that no cooling water was supplied to the punches A, B and the die, and the pressure holding time was not set. D) Molding Comparative Example 2 A kneaded product was molded in the same manner as in Molding Example 1 except that no cooling water was supplied to the punches A, B and the die. C) Molding Comparative Example 3 A kneaded product was molded in the same manner as in Molding Example 1 except that the pressure holding time was not set.

Evaluation result: Molding Example 1 and Molding Comparative Example 1
The results obtained in Nos. 1 to 3 are shown in Table 1 below. The results were evaluated by visually confirming whether or not the kneaded material was attached to the mold and whether or not cracks occurred in the kneaded product.

From the results shown in Table 1, if the molding unit composed of the punches A, B, and the die is insufficiently cooled, the kneaded material easily adheres to the mold, and the pressure holding time is set appropriately. If not, cracks occur in the kneaded product. In the present molding machine, the molding unit can be sufficiently cooled, and the pressure holding time can be appropriately set, so that a kneaded product having an excellent appearance can be molded with high productivity.

[0039]

According to the kneaded material molding machine of the present invention, a suitable kneaded material product can be molded from a variety of kneaded material materials by changing the content of the active ingredient in a wide range. In addition, with this molding machine, even for adhesive kneaded materials, continuous and smooth molding can be performed without causing molding obstacles such as adhesion of the kneaded materials to the molding die and occurrence of cracks in molded products. A product can be obtained, and the productivity of a molded product such as a tablet can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view (schematic configuration diagram) of a kneaded material molding machine according to an embodiment of the present invention.

FIG. 2 is an explanatory view (schematic vertical sectional view of a main part) of a kneading product molding machine of FIG. 1;

FIG. 3 is a plan view (FIG. 3 (a)) and a side view (FIG. 3 (b)) of a second turntable of the molding machine of FIG. 2;

FIG. 4 is a punch operation diagram based on a punch stroke in a molding process (one rotation process) of a kneaded material using the molding machine.

FIG. 5 is a view for explaining actual movement of a punch in the molding step of FIG. 4;

FIG. 6 is a diagram showing an example of a method of cooling a molding die in the present molding machine.

FIG. 7 is a view showing cooling of a molding die of the present molding machine;
It is a figure showing a different example of a refrigerant liquid circulation route.

FIG. 8 is a diagram showing an arrangement of specific devices in a refrigerant liquid circulation route in FIG. 7;

FIG. 9 is a first diagram for explaining the movement of a mold during molding in the molding machine.

FIG. 10 is a second diagram illustrating the movement of the mold during molding in the molding machine.

FIG. 11 is a third diagram for explaining the movement of the mold during molding in the molding machine.

FIG. 12 is a main molding using a mill in which an inclined surface is provided on the inner peripheral surface of the end of the mill on the side where the kneaded material is carried in so that the inner diameter increases outward. FIG. 6 is a first diagram for explaining the movement of a mold and the behavior of a kneaded material during molding in the machine.

FIG. 13 is a second diagram for explaining the same behavior as in the case of FIG. 12;

FIG. 14 is a third diagram for explaining the same behavior as in the case of FIG. 12;

FIG. 15 is a view showing an example of an actual kneaded material molding machine according to the present invention.

FIG. 16 is an enlarged view of a molding unit portion of the actual machine of FIG. 15;

[Brief description of reference numerals]

1: Shaft portion 2: First rotating plate 3: Second rotating plate 4: Third rotating plate 5: First fixed plate 6: Second fixed plate 7: First punch (A punch) 8 9: Second punch (Punch B) 10: Refrigerant liquid inlet 11: Refrigerant liquid outlet 12, 13:
Rotary joint 14: First track rail (A punch track rail) 15: Second track rail (B punch track rail) 16: Truck 17, 18:
Through holes 19, 20: Refrigerant liquid port 21: Kneaded material 22: Kneaded material 23: Tablet

Claims (4)

[Claims] (1) a linear shaft portion (1); and (ii) the shaft portion.
(1) driving means for rotating (iii), (iii) the shaft portion
(1) A first turntable (2) rotatably mounted on the shaft (1) by rotating (1), and (iv) a rotatable by rotating the shaft (1). A second turntable (3) attached to the shaft (1) and mounted on one side of the first turntable (2); and (v) rotating the shaft (1). A third rotating disk (4) rotatably mounted on the shaft portion (1) and mounted on the other side of the first rotating disk (2);
(vi) Even if the shaft (1) is rotated, it cannot be rotated.
A first fixed platen (5) mounted on the other side of the second turntable (3) and opposite to the first turntable (2);
i) The shaft (1) cannot be rotated even if the shaft (1) is rotated.
A second fixed plate (6) mounted on the other side of the third rotating plate (4) and mounted on the opposite side of the first rotating plate (2);
iii) means for fixing the first fixed platen (5) and the second fixed platen (6), and (ix) the first rotating plate (2) on the same circumference at predetermined intervals. A plurality of dies (8) having openings on both sides, and (x) are arranged on the same circumference at predetermined intervals in the second turntable (3). A plurality of first punches (7) provided, and (xi) a plurality of second punches arranged on the same circumference at predetermined intervals in the third turntable (4). A punch (9), (xii) an annular first track rail (14) provided on the second rotating disk (3) side on the first fixed disk (5), and (xiii) An annular second track rail (15) provided on the second rotating plate (4) side on the second fixed plate (6), for molding a kneaded product from a kneaded material. (Xiv) said first punch
(7) and the mortar (8) and the second punch (9) are arranged on the same axis to form one molding unit, (xv) the first fixing plate (5) and the Between the second fixed disk (6), the first rotary disk (2), the second rotary disk (3), and the third rotary disk (4) are rotated together in the same direction. In this case, a predetermined reciprocating motion is performed on the first punch (7) by the first track rail (14), and a predetermined reciprocating motion is performed on the second punch (9) by the second track rail (15). The reciprocating motion of the second punch (8) is thereby performed, and the following steps are performed according to the rotation: (a) The second punch (8) is moved to the second turntable (3) side, thereby Closing one opening of the die (8) at the end face of the punch (8), (b) the first punch (7) and the die (8)
The kneaded material carried in between the first punch
(7) pressing the end face of the mortar (8) into the mortar (8) from the other opening of the mortar (8) by pressing the end face of the mortar (8); ) Is pressed into the third rotating disk (4) by the first punch (7) while holding the position of the second punch (8). Molding the kneaded product, (d) the first punch
(7) and the second punch (8) are moved to the third turntable (4) side to carry out the step of carrying out the kneaded product to the third turntable (4) side. A kneading material molding machine characterized by squeezing. 2. The shaft (1) has a through hole formed along the axis, a coolant liquid inlet (10) is formed at one end of the through hole, and a coolant liquid outlet (11) is formed at the other end. ) Is formed, and in a portion of the through hole corresponding to the first turntable (2),
The kneaded material molding machine according to claim 1, wherein a coolant liquid port for supplying a coolant liquid to the mill (8) is formed. 3. The first punch of a plurality of the molding units.
(7) Or, the second track (8), the first track rail (14) at regular intervals for each time unit in which the total time required for a series of molding steps is equally distributed by the number of molding units. Or, in different positions distributed on the orbit of the second track rail (15), and when the rotation is performed continuously, a plurality of the molding units, from the steps (a) to (d) The kneaded material molding machine according to claim 1 or 2, wherein the kneaded material product is continuously produced by sequentially performing individual steps in a series of molding steps. 4. An inclined surface is provided on the inner peripheral surface of the end of the mill (8) on the side where the kneaded material is carried in such that the inner diameter increases toward the outside. A molding machine for a kneaded product according to claim 1.