KR101821587B1 - High speed soft gel encapsulation machine - Google Patents

Abstract

The present invention relates to a high-speed soft gel capsule molding device which can mold various chemical liquids into a soft gel capsule form along with gelatin at high speed. To achieve the purpose, the high-speed soft gel capsule molding device of the present invention comprises: a sheet molding unit coating a gelatin solution on a rotating cooling drum to mold two sheets of gelatin; a pair of die rolls having cavities to heat and seal gelatin sheets, and simultaneously mold the same into a capsule shape, wherein each of cavities engraved in a shape of one-half of a capsule closely faces each other to be rotated in an opposite direction while being arranged in an outer circumference of the die rolls to be corresponded with each other; a wedge formed in an upper side of the pair of die rolls, having a plurality of nozzles through which chemical liquids are supplied from a chemical liquid supply unit and injected between the gelatin sheets inserted into an inside of a cavity of the pair of die rolls arranged therein, and having a heater heating the gelatin sheets at a predetermined temperature formed therein; and a controller controlling a rotational speed of the die rolls, a temperature of the wedge, a rotational speed and the temperature of the cooling drum, and an operational interval for injecting chemical liquids of the nozzle in accordance with an angle made by the nozzle formed from the center of the pair of die rolls to the wedge and a setting value of the number of a line in which the nozzle is arranged to control a molding speed.

Description

[0001] HIGH SPEED SOFT GEL ENCAPSULATION MACHINE [0002]

The present invention relates to a molding machine for making various chemical solutions in the form of soft capsules together with gelatin. More particularly, the present invention relates to a molding machine capable of high-speed molding and minimizing a defective rate while improving productivity, Speed molding machine for capsules.

BACKGROUND ART [0002] Today, soft capsules are known which are filled with an undiluted drug solution (powder, oil component, etc.) in an encapsulating film made mainly of animal raw materials such as gelatin and vegetable raw materials such as starch. Type molding machine.

For example, a rotary type molding machine proposed in Japanese Patent Application Laid-Open No. 11-221267 includes a sheet forming portion for forming a thin film gelatin sheet with a gelatin solution, a capsule forming portion for forming a capsule with a gelatin sheet, and a drug solution supply part for supplying the drug solution into the gelatin sheet which is encapsulated.

Particularly, the capsule forming part is constituted by a pair of die rolls which are opposed to each other with cavities engraved in a shape of one-half of the capsules for forming the shell of the soft caps, rolls, and a wedge for injecting (ejecting) a chemical liquid is mounted on the upper side of the die roll, and the wedge is connected to a chemical liquid supply portion for supplying a chemical liquid.

Therefore, the two gelatin sheets formed in the sheet forming section are sandwiched between a pair of rotating die rolls of the capsule forming section, and at the same time, the undiluted liquid is injected between the gelatin sheets at a constant cycle, and heat sealing and cutting are simultaneously performed A gelatin sheet is molded in a capsule shape in a pair of die rolls to continuously produce a soft capsule filled with a stock solution in a gelatin film.

In order to improve the quality of the soft capsule and reduce the defects in such a manufacturing method, it is necessary to accurately align the cavities corresponding to the pair of die rolls facing each other and to perform molding according to the timeline of the wedge, Do.

1 and 2, in the conventional capsule forming part wedge 13, the chemical liquid discharge hole 13a is formed so as to correspond to the cavities 11b and 11b 'of the die rolls 11 and 11' And the nozzle 13b is formed at a position where the height h2 is 10 mm higher than the end of the chemical liquid discharge hole 13a, that is, the lower end of the wedge 13.

This is to keep the gelatin sheet of the soft capsule (C) at a constant rotation time and distance to minimize the leakage of the chemical solution while heat-sealing the gelatin sheet and to stabilize the bonding and sealing.

Since the properties of the gelatin sheet (A) (A ') are such that the pockets are formed by the pressure and the cavities 11b and 11b' of the die rolls 11 and 11 ' . In this process, the gelatin sheet A is temporarily stretched and slightly shrunk, so that sealing and sealing of the gelatin sheets A and A 'can be performed stably only after a certain period of time.

For example, when the diameters of the die rolls 11 and 11 'are 150 mm, the cavities 11b and 11b' are 30 on the outer periphery, and the cooling drum diameter of the sheet forming part is 500 mm, And the gelatin sheet (A) (A ') should be maintained at 39 ° C to 40 ° C to be satisfactorily bonded and sealed.

That is, in the conventional soft capsule molding machine, the rotational speed of the die rolls 11 and 11 'is maintained at 2.0 rpm / min or less or temporarily stopped and then rotated (intermittently) ) Should be set to 10 mm or less so as to satisfy not only the quality condition while minimizing the failure of the joint portion and the loss of material, but also the noise generated by the operation of the piston (plunger) when supplying and injecting the chemical liquid M There is a limit that the productivity will be significantly lowered due to structural constraints.

In addition, the sheet forming part is formed by forming the gelatin solution into a gelatinous sheet in the form of a thin film which is gelled by using a spreader box and a cooling drum, and at the same time, And the wedge 13 of the capsule forming part is cooled to ~ 22 ° C and the wedge 13 of the capsule forming part is cooled to 38 to 45 ° C so that the gelatin sheet (A) (A ') is instantaneously stretched and contracted by the pressure of the chemical liquid , At which time the temperature of the die rolls 11, 11 'is maintained at 24 占 폚.

As a result, if the speed of rotation of the die rolls 11 and 11 'is increased to increase the production speed, the time required for the gelatin sheet A' to pass through the wedge 13 is shortened, (Width and thickness) between the gelatin sheets (A) and (A ') can not be uniformly heated under normal temperature conditions at which they can not be shrunk, .

If the heating temperature of the wedge 13 is increased while the rotational speed of the die rolls 11 and 11 'is increased, the gelatin sheet A' A 'receives a high heat in a short period of time and melts, It can not be shrunk when the chemical liquid is fed normally, and it sticks easily to the die rolls 11 and 11 ', thereby causing sealing and cutting defects.

Herein, the background art or the prior art described above is only intended to help understand the technical significance of the present invention as information acquired by the present inventor or derived from the present invention, It does not mean that it is widely known in the field.

KR 10-0979586 B1 (Aug. 26, 2010) KR 10-1639800 B1 (2016.07.08) KR 10-1564409 B1 (2015.10.23) KR 20-0462191 Y1 (Aug. 23, 2012) KR 10-0954227 B1 (April 14, 2010) KR 10-1358002 B1 (2014.01.27) KR 10-1126778 B1 (Mar. 07, 2012) KR 20-0445951 Y1 (2009.09.03) JP 2001-17514 A (2001.01.23)

Accordingly, the present inventor has focused on solving the limitations and problems of the conventional soft capsule molding machine by comprehensively considering the above-mentioned matters, The molding temperature, the cooling and heating temperature of the gelatin sheet, and the operation interval of the chemical liquid supply part for injecting the chemical liquid into the nozzle are varied according to the angle formed to the formed nozzles and the number of lines on which the nozzles are arranged, So that the soft capsules can be stably formed at a high speed while minimizing the defective rate and the loss of the material. Thus, the present inventors have made every effort to develop a soft capsule molding machine with a new structure As a result of constant research, we have invented the present invention All.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a high-speed soft capsule molding machine capable of stably and rapidly molding a soft capsule of good quality while minimizing a defect rate and material loss.

Herein, the technical object and object to be solved by the present invention are not limited to the technical object and purpose mentioned above, and another technical object and purpose not mentioned can be understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a method for manufacturing a gelatin sheet, comprising the steps of: applying a gelatin solution to a rotating cooling drum to form two gelatin sheets; A pair of die rolls facing each other in the direction opposite to each other while being arranged in correspondence with the outer periphery and having cavities engraved in a half of the shape of the capsules for forming capsules at the same time as the heat- And a plurality of nozzles, which are located above the pair of die rolls and are respectively fed between the gelatin sheets inserted into the pair of die roll cavities by receiving the chemical liquid from the chemical liquid supply section, are arranged in a zigzag pattern And a wedge having a built-in heater for heating the gelatin sheet to a predetermined temperature, The rotation speed of the die roll, the temperature of the wedge, the rotational speed and the temperature of the cooling drum, the temperature of the nozzle, the angle of the wedge, And a controller for controlling the molding speed by controlling an operation interval for injecting the chemical liquid.

Thus, according to the present invention, the forming speed and the cooling and heating temperature of the gelatin sheet are controlled according to the angle formed by the joining and sealing between the gelatin sheets from the center of the die roll to the nozzle formed on the wedge, , The operation of the gelatin sheet is prevented by changing the operation interval of the chemical liquid supply part for injecting the chemical liquid of the nozzle, and the operation is smoothly performed, so that the soft capsule of good quality can be stably formed at a high speed while minimizing the defect rate and material loss. So that the productivity can be greatly increased.

Further, in a preferred embodiment of the present invention, the controller controls the angle formed by the joining and sealing of the gelatin sheets from the pair of die roll centers to the nozzle formed on the wedge as a reference angle The rotation speed of the die roll is increased by 6 rpm / min at the reference rotation speed (6 rpm / min), and the surface temperature of the wedge is increased by 1 캜 at the reference temperature (40 캜) , The rotation speed of the cooling drum is increased by 1.8 rpm / min at a reference rotation speed (1.8 rpm / min), and the surface temperature of the cooling drum is controlled to be lowered by 1 캜 at a reference temperature (19 캜) (3 times per second), and the number of times of operation of the nozzle is increased by one column from the reference column (one column) formed at the reference angle, Per standard meeting The gelatin sheet can be heated and cooled in a stable state without abrupt temperature change to prevent the deterioration of physical properties, so that the soft capsule of good quality can be stably and efficiently removed while minimizing the defective rate Can be produced.

Further, in a preferred embodiment of the present invention, the nozzle is arranged in at least one line along both curved surfaces of the wedge formed corresponding to the pair of die rolls, To 168 [deg.], The soft capsule of good quality can be stably produced by appropriately adjusting the temperature required for cooling and heating the gelatin sheet according to the molding speed of the capsule.

In addition, in a preferred embodiment of the present invention, the curved protrusions for heating the gelatin sheet by contacting the gelatin sheet are formed on both sides of the wedge so as to protrude convexly, thereby heating the gelatin sheet more stably to minimize the defective rate.

An embodiment of the present invention having the means and structure for solving the above object and the technical object of the present invention is to provide a method for manufacturing a wedge comprising a step of joining and sealing the gelatin sheet from the center of the die roll as a starting point, By controlling the molding speed, the cooling and heating temperature of the gelatin sheet, and the operation interval of the chemical liquid supply part for injecting the chemical liquid to be different according to the angle and the number of the rows in which the nozzles are arranged, it is possible to prevent deterioration of the physical properties of the gelatin sheet, This makes it possible to inject the drug solution naturally and stably into the pockets (cavities) of the gelatin sheet while minimizing the failure of the joint and sealing parts and the loss of the material, and at the same time, It is possible to perform high-speed molding more stably and more, and productivity can be greatly improved.

In addition, since the number of nozzles arranged in a zigzag shape can be increased up to 4 lines, noise can be minimized by reducing the number of times of cam and piston operation for supplying and injecting a chemical solution.

Here, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 and FIG. 2 are schematic views showing a capsule forming part of a soft capsule molding machine according to a conventional technique.
3 is a schematic view illustrating a high-speed soft capsule molding machine according to an embodiment of the present invention.
4 is a cross-sectional view schematically showing a part (capsule forming part) of a high-speed soft capsule molding machine according to an embodiment of the present invention.
5 is an enlarged cross-sectional view of the locality of FIG.
FIG. 6 is a circuit diagram schematically illustrating a configuration of a heater of a wedge in a high-speed soft capsule molding machine according to an embodiment of the present invention.
7 to 11 are flowcharts for controlling operations of a high-speed soft capsule molding machine according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions of the present invention, and they are to be construed to mean concepts that are consistent with the technical idea of the present invention and interpretations that are commonly or commonly understood in the technical field of the present invention.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, when a part includes an element, it does not exclude other elements unless specifically stated otherwise, but may include other elements.

The term "unit" and "unit " mean a unit form or a module form for processing at least one desired function or operation and may be implemented by means of hardware or software, .

3 to 5, a high-speed soft capsule shaper according to an embodiment of the present invention includes a sheet forming unit 15, a pair of die rolls 20, a wedge 30, a chemical liquid supply unit 40, , And a controller (50).

That is, in the high-speed soft capsule molding machine according to the embodiment of the present invention, two sheet-shaped gelatin sheets S are formed from a gelatin solution in a sheet forming section 15, and a pair of die rolls 20, The gelatin sheet S is heat sealed in the gelatin sheet 30 and the chemical liquid F supplied from the chemical liquid supply unit 40 is injected and cut at a constant cycle to form capsules, And soft capsules filled with the medicament liquid (F) in the sheet (S) are continuously produced.

The sheet forming section 15 is a part for continuously conveying and supplying two sheets of gelatin sheet S in the form of thin gelatin as a gelatin solution between the pair of die rolls 20 and the wedge 30, Are provided on both the left and right sides of the pair of die rolls 20 and the wedge 30, respectively.

Here, the sheet forming portion 15 may employ a normal structure composed of a solution supply portion, a spreader box, a cooling drum 15a, and a winding rollers.

That is, the sheet forming part 15 is provided so as to continuously form two gelatin sheets S in the form of thin film by applying the gelatin solution to a pair of left and right cooling drums 15a to be rotated.

In addition, a first temperature sensor 16 is provided on the sheet forming part 15 for detecting a temperature change of the cooling drum and outputting an electric signal.

The pair of die rolls 20 and the wedge 30 are arranged in such a manner that a predetermined amount of the chemical liquid F supplied from the chemical liquid supply unit 40 between the two gelatin sheets S transported and supplied from the sheet forming unit 15 Is a part for molding a soft capsule by injection, filling and cutting, and is located at the center portion of the sheet forming part 15 for encapsulation.

The pair of die rolls 20 are used to heat seal the two gelatin sheets S to be conveyed and supplied from the sheet forming part 15 and simultaneously form capsules The cavities 21 engraved in a half shape are provided so as to be opposed to each other so as to face each other and to rotate in opposing directions.

Here, a blade portion for cutting the encapsulated gelatin sheet S is formed at the edge of the cavity 21.

The pressure of the gelatin sheet S at the center of the bottom surface of the cavity 21 is pulled by vacuum suction or suction or when the chemical liquid F is ejected from the nozzle 31, Holes are formed in order to form the holes.

The wedge 30 is located on the upper side of the pair of die rolls 20 and below the gelatin sheets S inserted in the cavities of the pair of die rolls 20, At least one or more lines of nozzles 31 corresponding to the cavities 21 of the die roll are arranged.

That is, the wedge 30 is formed in a wedge shape symmetrically with a concave curved surface on both lower sides so that the pair of die rolls 20 can rotate without interfering with each other. The wedge 30 faces the upper side of the outer periphery of the die rolls 20 The concave curved surface is provided with at least one or more lines for injecting the chemical liquid F between the encapsulated gelatin sheets S by supplying the chemical liquid F from the chemical liquid supply unit 40 along the rotation axis direction of the die roll 20 The reference rows (one row) of the nozzles 31 are arranged in the range of 7 ° to 150 ° from the center of one die roll 20.

A curved surface projection 30a for heating the gelatin sheet S in close contact with the wedge 30 is convexly formed on both sides of the wedge 30.

That is, the curved surface protruding portion 30a is formed by contacting and heating the gelatin sheet S conveyed and supplied by the sheet forming portion 15 in advance in a stable state without abrupt temperature change, and between the pair of die rolls 20 and the wedge 30 .

The upper surface of the wedge 30 is provided with a chemical solution supply hole for connection between the respective nozzles 31 and the chemical solution supply unit 40. A heater 32 for heating the gelatin sheet S to a constant temperature, And a second temperature sensor 34 for detecting the temperature of the liquid.

That is, under the control of the controller 50, the heater 32 heats the wedge 30 to transfer the heat required for heat sealing to the gelatin sheet S.

Here, the wedge 30 is formed so as to surround at least two-fifths of the upper portion of the pair of die rolls 20, and the reference row (first row) of the nozzles 31 is formed in one die roll 20 ), Or arranged in a plurality of rows with an interval of 4 ° to 6 ° from the reference row.

That is, the wedge 30 can be formed such that the area where the nozzle 31 is formed is widened to cover the upper portion of the pair of die rolls 20 as the position of the nozzle 31 is farther from the position where the encapsulation is performed, The rotation speed of the nozzle 31 can be increased at a speed corresponding to the position of the nozzle 31.

For example, the joining and sealing between the gelatin sheets S from the center of the rotation axis of the die roll 20 having a diameter of 500 mm and a diameter of 150 mm and a cavity 21 on the outer periphery of the cooling drum 15a of the sheet- When the nozzle 31 is formed at a position of 30 ° in the curved surface of the wedge 30, the speed of the nozzle 31 can be increased by about 3 times as compared with the existing nozzle at 7 °, It is possible to increase the speed of the nozzle 31 by about 6 times as compared with the nozzle located at the existing 7 ° and when the nozzle 31 is formed at the position of 90 °, It is possible to increase the speed by about 9 times.

That is, the minimum bonding time (the time until the bonding and sealing are performed after injecting the chemical solution between the two gelatin sheets) at which the bonding and sealing of the gelatin sheets S can be stably performed is in the range of 0.58 to 0.63 seconds Each time the angle of the nozzle 31 formed in the wedge 30 from the center of the pair of die rolls 20 is increased by 30 占 from the reference angle while maintaining the constant rotation speed of the die roll 20 at the reference rotation speed It can be increased by 6 rpm / min.

In addition, when the reference rows of the nozzles 31 are arrayed in a plurality of hot water numbers within a range of 7 ° to 150 ° from the center of one die roll 20, And the injection port for supplying the chemical liquid to the nozzle 31 may be formed by arranging a plurality of hot water to smoothly supply the chemical liquid.

For example, the nozzles 31 having a plurality of rows arranged in rows may be arranged in a line so as to correspond to the cavity 21 of the die roll along the curved surface of the lower portion of the wedge 30, Or may be a zigzag nozzle formed or installed.

When the nozzles 31 are zigzag nozzles, they may be arranged in two or more rows. If the nozzles 31 are arranged in two or more rows, they may be arranged from the reference row (first row) to the next row (second row) (Second row) to the next row (third row) may be from about 4 degrees to about 6 degrees, respectively.

In addition, the hot water of the nozzle 31 may be arranged in different forms depending on the properties of the chemical liquid, such as whether it is in powder form, liquid form or oil form.

The chemical solution supply unit 40 is a part for supplying the chemical solution between the gelatin sheets S to be encapsulated and supplies the chemical solution to the nozzle 31 of the wedge 30 at a predetermined timing And is positioned on the upper side of the wedge 30.

Here, the chemical liquid supply unit 40 may employ a conventional structure including a hopper, a plunger type pump, and a tube assembly.

When the nozzle 31 is formed on the wedge 30 by a plurality of hot water, the chemical solution supply unit 40 can supply and inject the chemical solution toward the plurality of cavities 21 at a time, so that the number of operations of the cam and the piston is reduced Operating noise and vibration can be minimized.

In the meantime, the viscosity of the chemical solution varies depending on whether the chemical solution is made of only oil or oil or powder, and the viscosity of the chemical solution varies greatly. In the course of pumping with the plunger pump of the chemical solution supply part 40, If the viscosity is high, the suction is not properly performed, and the discharge is not stably performed due to the high pressure. As a result, the supply of the chemical liquid through the nozzle 31 is not smooth and the noise and vibration are also severe. There is a limit to the number of heat.

The angle formed by the joining and sealing of the gelatin sheets S from the center of the die roll 20 to the nozzle 31 formed on the wedge 30 is 30 degrees, 31) is formed, and the limit value of the viscosity that can be formed when the chemical liquid is composed only of the oil component is 5500 cp. In the case where the chemical liquid is composed of oil and powder mixed components, the limit value of the viscosity that can be formed is 3300 cp, , The limit value of the viscosity that can be formed when the chemical solution is composed only of the oil component is 3000 cp and the viscosity limit value that can be formed when the chemical solution is composed of the oil and the powder mixture component 2100 cp.

That is, the larger the angle formed by the joining and sealing of the gelatin sheets S from the center of the die roll 20 to the nozzle 31 formed on the wedge 30, the more the rotational speed of the die roll 20 becomes At this time, if the viscosity of the chemical solution is high, the chemical solution can not be supplied and injected toward the plurality of cavities 21 properly.

The controller 50 generally controls the operation of the molding machine and particularly controls the angle formed by the nozzles 31 formed in the wedge 30 from the center of the pair of die rolls 20 and the number of lines in which the nozzles 31 are arranged The rotation speed of the die roll 20, the temperature of the heater 32 of the wedge, the rotation speed and temperature of the cooling drum 15a, and the operation interval for injecting the chemical liquid of the nozzle 31 are controlled to adjust the molding speed do.

That is, the controller 50 controls the rotation speed of the die roll 20 and the cooling drum 15a in proportion to the angle setting value formed in the wedge 30 from the center of the pair of die rolls 20 In addition, the temperature of the wedge 30 and the cooling drum 15a is controlled in an inverse proportion to adjust the molding speed.

7 to 11, the controller 50 is provided on the wedge 30 as a starting point from a portion where joining and sealing are performed between the gelatin sheets S from the center of the pair of die rolls 20 The rotational speed of the die roll 20 is increased by 6 rpm / min at a reference rotational speed of 6 rpm / min and the wedge 30 is increased by 30 rpm at a reference angle of 30 [ The surface temperature of the cooling drum 15a is increased by 1.8 degrees per minute at a reference rotation speed of 1.8 rpm / min, and the surface temperature of the cooling drum 15a is increased by 1.degree. Is controlled to be lowered by 1 [deg.] C at a reference temperature of 19 [deg.] C.

At this time, the surface temperature of the cooling drum 15a is controlled by controlling the temperature of the cooling drum 15a according to the detected temperature value of the first temperature sensor 16, and the temperature of the cooling drum 15a is controlled according to the detected temperature value of the second temperature sensor 34 The temperature of the surface of the wedge 30 is controlled by controlling the heater 32 and the rotational speed of the die roll 20 and the rotational speed of the cooling drum 15a are controlled by driving portions for transmitting power, Adjust the speed.

In addition, the controller 50 controls the molding speed by proportionally controlling the operation interval of the chemical liquid supply unit 40 for injecting the chemical liquid into the nozzle 31 according to the number of lines of the lines in which the nozzles 31 are arranged.

That is, the operation interval for single-time chemical solution injection of the nozzles 31 is set to a range from the center of the die roll 20 to the nozzle 31 formed on the wedge 30 starting from the portion where the gelatin sheets S are joined and sealed The number of the nozzles 31 is increased from the reference row (1 column) to the reference row (1 row) while the rotation speed of the die roll (20) is the same, The control is performed so that the number of times is reduced from the reference number of times per reference angle to the value obtained by dividing the number of times by the increased number of times.

For example, the reference row (first row) of the nozzles 31 is formed on the wedge 30 at 30 ° from the portion where the gelatin sheets S are joined and sealed from the center of the die roll 20 , And the operation is controlled so that the chemical solution is injected three times per second when the number of rows is one row (column).

At this time, if the viscosity of the chemical solution is high, the chemical solution can not be supplied and injected toward the plurality of cavities 21 properly. Therefore, the portion where the gelatin sheets S are joined and sealed from the center of the die roll 20, When the reference angle made up to the nozzle 31 formed on the nozzle 31 is 30 degrees, the operation is controlled so that the chemical solution is injected only when the number of steps of the nozzle 31 is one, (Reference row) or two rows, and when the reference angle is 90 degrees, the operation is controlled so that the chemical solution is injected only when the number of rows of the nozzles 31 is two do.

Particularly, when the reference angle is 120 degrees, the operation is controlled so that the chemical solution is injected only when the number of rows of the nozzle 31 is two rows (reference row) or four rows, When the reference angle is 150 degrees, the operation is controlled so that the chemical solution is injected only when the number of the hot water of the nozzle 31 is four, while being limited to the case where the chemical solution is not the oil and powder mixed type.

The controller 50 also compares the signals of the variable controller 37 for arbitrarily setting the temperature of the heater 32 and the signals of the second temperature sensor 34 and the variable controller 37 A microcomputer 38 for interrupting the power supply, a relay 39 provided on the electric power supply wire for on / off control of the power supply, and a transistor 39a for driving the relay 39.

That is, the microcomputer 38 recognizes the temperature set by the variable controller 37 and at the same time receives the signal of the second temperature sensor 34 and compares the received signal to control the power applied to the heater 32, When the temperature detected by the second temperature sensor 34 is higher than the temperature set by the variable regulator 37, the microcomputer 38 sends a signal to the transistor 39a, The microcomputer 38 sends a signal to the transistor 39a when the temperature detected by the second temperature sensor 34 is lower than the temperature set by the variable regulator 37 The relay 39 is maintained in the ON state, so that power is continuously supplied to the wedge heater 32 to generate heat.

On the other hand, in the technique in which the controller 50 controls the surface temperature of the cooling drum 15a in accordance with the detected temperature value of the first temperature sensor 16, the temperature of the cooling drum 15a is controlled by controlling the cooling liquid So as to maintain the temperature at a constant temperature. This is described in Patent Document 1, and thus a detailed description thereof will be omitted.

The main function and operation principle of the high-speed soft capsule molding machine according to the embodiment of the present invention will now be described.

3 to 5, two sheets of gelatin sheet S are fed between the pair of die rolls 20, and the two sheets of gelatin sheet S are fed through both nozzles 31 of the wedge 30 located above The chemical liquid F is continuously injected at a constant time interval to inject the chemical liquid F between the two gelatin sheets S sandwiched between the die rolls 20. At the same time, the wedge 30 is heated by the heater 32 to dissolve the gelatin sheet S by the heat to increase the adhesive force, and the pair of left and right die rolls 20 are arranged such that the gelatin sheets S have a minimum distance Heat seal with pressure when passing through part. At this time, the blade portions (not shown) formed on the edges of the cavities 21 of the die rolls 20 face each other to face each other, so that the gelatin sheet S is cut into a capsule shape.

In addition, a mangle roller is disposed on the lower side of the die roll 20 on which the capsules have been formed. The remaining squid gelatin sheet (scrap sheet) after the capsules are cut is pulled downward, and at the same time, The remaining gelatin sheet is separated, and only soft capsules are recovered via the shooter placed on the front side. At this time, the rotating speed of the mangle roller is adjusted so that the remaining squalicelatin sheet is not torn or rolled in the die roll 20 during feeding.

In this process, the controller 50 receives the temperature of the cooling drum 15a and the wedge 30 according to the molding speed of the capsule and automatically controls the temperature to a predetermined value to cool and heat the gelatin sheet S naturally and smoothly Transportation, and supply.

7, the controller 50 determines that the reference angle formed by the nozzle 31 formed in the wedge 30 from the center of the die roll 30 is 30 degrees and the number of rows of the nozzles 31 is one row (One row made of a zigzag pattern), the rotation speed of the die roll 20 is 6 rpm / min, the reference temperature of the wedge 30 is 40 占 폚, and the rotation speed of the cooling drum 15a is 1.8 rpm / min , The surface temperature of the cooling drum 15a is controlled to be adjusted to 19 deg. C, and at the same time, the operation for injecting the chemical liquid into the nozzle 31 for three times is performed in one second. That is, one operation interval for injecting the chemical liquid is controlled to be 0.333 seconds.

At this time, if the reference angle is not 30 [deg.], The process proceeds to step A, and if the number of the nozzles 31 exceeds one row (row), the error process is performed to stop the operation.

8, the controller 50 determines that the reference angle formed by the nozzle 31 formed in the wedge 30 from the center of the die roll 60 is 60 degrees and the number of rows of the nozzles 31 is one row ), The rotation speed of the die roll 20 is 12 rpm / min, the reference temperature of the wedge 30 is 41 ° C, and the rotation speed of the cooling drum 15a is 3.6 rpm / min. The surface temperature is controlled to be adjusted to 18 DEG C, and at the same time, the operation for injecting the chemical liquid into the nozzle 31 for six times is controlled to be performed in one second. That is, one operation interval for injecting the chemical liquid is controlled to be 0.1666 seconds.

At this time, if the reference angle is not 60 degrees, the process moves to step B, and if the number of rows of the nozzles 31 is not one row (two rows) but two rows (two rows made of a zigzag pattern) The operation is controlled so that the operation interval for the injection is made every 1 second, and when the number of the heat of the nozzle 31 exceeds 2 rows, the operation is stopped by error processing.

9, the controller 50 determines that the reference angle formed by the nozzle 31 formed in the wedge 30 from the center of the die roll 20 is 90 degrees and the number of rows of the nozzles 31 is two rows ), The rotation speed of the die roll 20 is set to 18 rpm / min, the reference temperature of the wedge 30 is set to 42 캜, the rotation speed of the cooling drum 15a is set to 5.4 rpm / min, The surface temperature is controlled to be adjusted to 17 캜, and at the same time, the operation for injecting the chemical liquid into the nozzle 31 at 4.5 times is performed in one second. That is, one operation interval for injecting the chemical liquid is controlled to be 0.2222 seconds.

At this time, if the reference angle is not 90 [deg.], The process moves to step C, and if the number of the nozzles 31 is less than two rows (two rows) or exceeds two rows (two rows composed of zigzag patterns) .

10, the controller 50 determines that the reference angle formed by the nozzle 31 formed in the wedge 30 from the center of the die roll 20 is 120 degrees and the number of rows of the nozzles 31 is two rows (zigzag Pattern, the rotation speed of the die roll 20 is 24 rpm / min, the reference temperature of the wedge 30 is 43 占 폚, the rotation speed of the cooling drum 15a is 7.2 rpm / min, The surface temperature of the drum 15a is controlled to be adjusted to 16 DEG C and at the same time, the operation for injecting the chemical liquid into the nozzle 31 for six times is controlled to be performed in one second. That is, one operation interval for injecting the chemical liquid is controlled to be 0.1666 seconds.

At this time, if the reference angle is not 120, the process moves to step D, and if the number of rows of the nozzles 31 is not two rows (two rows made of a zigzag pattern) but four rows (four rows made of a zigzag pattern) ) Is controlled to be performed once every three seconds. When the number of rows of the nozzles 31 is less than two rows and less than four rows, an error process is performed to stop the operation .

In addition, when it is confirmed that the chemical liquid input from the vision device or the like which measures and inspects the components of the chemical liquid with the three-dimensional vision is mixed with the oil and the powder, the control is performed so as to stop the operation by error processing.

11, the controller 50 determines that the reference angle formed by the nozzle 31 formed in the wedge 30 from the center of the die roll 20 is 150 degrees and the number of rows of the nozzles 31 is four columns (zigzag The rotation speed of the die roll 20 is 30 rpm / min, the reference temperature of the wedge 30 is 44 占 폚 and the rotation speed of the cooling drum 15a is 9 rpm / min, The surface temperature of the nozzle 15 is controlled to be adjusted to 15 DEG C, and at the same time, the operation for injecting the chemical solution of the nozzle 31 at 3.75 times is performed in one second. That is, one operation interval for injecting the chemical liquid is controlled to be performed every 0.266 seconds.

At this time, if the reference angle is not 150 ° or if the number of the nozzles 31 is less than or equal to 4 rows, control is performed so as to stop the operation by error processing.

In addition, when it is confirmed that the chemical liquid input from the vision device or the like which measures and inspects the components of the chemical liquid with the three-dimensional vision is mixed with the oil and the powder, the control is performed so as to stop the operation by error processing.

As described above, in the high-speed soft capsule molding machine according to the embodiment of the present invention, for example, the cooling drum 15a of the sheet forming part has a diameter of 500 mm, a diameter of 150 mm, and a cavity 21 on the outer periphery, The nozzles are located at 7 degrees at a position of 30 degrees centering on the cooling drum 15a and the rotation speed of the die roll is 2 rpm / min, the reference temperature of the wedge 30 is 39 deg. The production speed can be increased to about 3 times as compared with the conventional case where the rotation speed and surface temperature are 0.6 rpm / min and 18 ° C.

Therefore, it is possible not only to minimize the defects of the joint part and the loss of the material due to deterioration of the properties of the gelatin sheet (S) during high-speed molding, but also to mold the soft capsule of good quality at least three times more stably at high speed Productivity can be greatly improved.

In other words, if the rotation speed of the die roll 20 and the cooling drum 15a is increased to increase the production speed for high-speed molding of the capsule, the time for cooling the gelatin sheet S by the cooling drum 15a is shortened And the time to pass through the wedge 30 is shortened, so that it can not be heated to a normal temperature condition that smoothly increases and shrinks instantaneously when the chemical liquid is supplied. As a result, the joining area (width and thickness ) Is not uniform and joining and cutting can not be performed properly, so that it may easily cause a failure such as blowing.

The angle between the center of the die roll 20 and the nozzle 31 formed on the wedge and the number of lines on which the nozzles 31 are arranged from the point where the gelatin sheets S are joined and sealed, The rotation speed of the roll 20 and the cooling drum 15a and the heating temperature of the heater 32 incorporated in the cooling drum 15a and the wedge as well as the operating interval of the chemical solution supply unit 40 for injecting the chemical solution of the nozzle 31 The controller 50 automatically controls the gelatin sheet S to cool and heat the gelatin sheet S in a stable state without abrupt temperature change to prevent deterioration of the physical properties of the gelatin sheet S so that the gelatin sheet S can be used universally regardless of the molding speed It is possible to minimize the defect rate while raising the productivity significantly, as well as reduce the operation stop time.

Furthermore, the number of the nozzles 31 arranged in a zigzag manner can be increased, and the number of times of operation of the cam and the piston (plunger) of the chemical solution supply unit 40 for supplying and injecting the chemical solution can be reduced, .

Here, among the constituent elements of the soft capsule molding machine according to another embodiment of the present invention, constituent elements having the same or similar operational effects as those of the above-described embodiment are denoted by the same reference numerals, and repetitive detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments or constructions. Various changes and substitutions may be made without departing from the spirit and scope of the invention. It will be obvious to those skilled in the art that the present invention can be widely applied to other embodiments.

Therefore, it is to be understood that modifications and variations of the features of the present invention are intended to be included within the spirit and scope of the present invention.

15: sheet forming section 16: first temperature sensor
20: die roll 21: joint
30: Wedge 31: Nozzle
32: heater 34: second temperature sensor
40: chemical liquid supply unit 50: controller
S: Gelatin sheet C: Capsule
F: Solution

Claims (4)

A sheet molding section for applying gelatin solution to a rotating cooling drum to form two sheets of gelatin sheet; and a cavity (hereinafter referred to as " cavity " A pair of die rolls disposed opposite to each other so as to face each other while being closely arranged and corresponding to the outer periphery of the pair of die rolls; Wherein at least one row of nozzles for injecting each between the gelatin sheets inserted in the roll cavity is symmetrically arranged and a heater for heating the gelatin sheet to a constant temperature and a pair of die roll centers Of the die and the cooling drum in accordance with an angle setting value formed by the nozzle formed on the wedge Controlling the rotation speed in proportion to the temperature of the wedge and the cooling drum in an inverse proportion and controlling an operation interval for injecting the chemical liquid of the nozzle proportionally in accordance with the number of lines of the arranged rows of the nozzles And a controller for controlling the molding speed,
Wherein said controller is configured to control the angle of inclination of said gelatin sheet from the center of said pair of rollers to a point at which said joining and sealing are performed, The rotation speed of the die roll is increased by 6 rpm / min at a reference rotation speed (6 rpm / min), the surface temperature of the wedge is increased by 1 캜 at a reference temperature (40 캜) (1.8 rpm / min) at 1.8 rpm / min, and the surface temperature of the cooling drum is controlled to be lowered by 1 DEG C at the reference temperature (19 DEG C), and the operation interval for the single- (3 times per second), and when the number of the nozzles is increased by one column in the reference column (1 column) formed at the reference angle, the value obtained by dividing the reference number of times per reference angle by the number of the increased number Return to A high-speed soft capsule molding machine.
delete The method according to claim 1,
Wherein the nozzle is arranged in at least one line along the concave curved surface of the lower portion of the wedge formed to correspond to the pair of die rolls so that the wedge is positioned in the range of 7 to 168 degrees from the center of the die roll A high speed soft capsule forming machine formed symmetrically on both sides.
The method according to claim 1,
Wherein the gelatin sheet is contacted to both sides of the wedge so that a curved surface protrusion for heating is protruded convexly.

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