KR102106505B1 - Molding apparatus for Capsule - Google Patents

Abstract

The present invention relates to a capsule molding device which suggests a structure preventing capsule molding defects caused by high-speed rotation even under a high speed rotation (RPM) of a molding roll for productivity improvement, thereby enhancing mass-productivity; and allows excellent mass-productivity of the capsule. The capsule molding device is introduced with a structure which allows a packaging film to be readily peeled from the molding roll even without applying oil to an outer surface of the packaging film supplied to the molding device. The device comprises a plurality of concave grooves arranged on the surface of the molding roll for capsule molding, wherein the concave grooves are arranged such that the long axis of the concave grooves and the axis of the molding roll are not parallel to each other.

Description

Capsule forming apparatus {Molding apparatus for Capsule}

The present invention relates to a capsule molding apparatus, and more specifically, to increase productivity, to increase the RPM, that is, to increase the rotational speed of the molding roll, to eliminate the defect of the capsule caused by high-speed rotation and to propose a structure to improve mass productivity It relates to a capsule molding apparatus characterized by.

In addition, it is possible to expect excellent mass productivity of the capsule, and capsule molding characterized by introducing a structure in which the packaging film can be easily peeled off the molding roll even if oil is not supplied to the outer surface of the packaging film supplied to the molding apparatus. It is about the device.

The soft capsule product used for various purposes is gelatinized by heating and spreading it thinly on a drum of a soft capsule molding machine to sheet it, transferred to a molding unit, and filled with a drug while molding the soft capsule with a pair of molding rolls. It is a common production method.

This is called a rotary method, and more specifically, such a manufacturing apparatus includes a sheet forming part for forming a thin film-shaped gelatin sheet with a gelatin solution, a capsule forming part for forming a capsule with a gelatin sheet, and an encapsulated gelatin. It consists of a chemical solution supplying part for supplying a chemical solution in the sheet.

Referring to Figure 1, in the form of syrup in a gelatin tank, that is, gelatin changed to a liquid is supplied to a spreader box (B) connected to a storage tank and a transfer hose, pumped from the storage tank and supplied to the corresponding spreader box through the transfer hose The gelatin in the molten state is adjusted in thickness and applied to the outer circumferential surface of the forming drum 2 disposed under the adjusted thickness.

Then, the gelatin applied to the rotating drum is cooled and sheeted, and is then supplied to the capsule molding unit through a plurality of supply rolls 3.

In the above process, the spreader box (B), the storage tank, and the transfer hose configuration may be referred to as a gelatin supply unit, and may include a sheet forming unit when the forming drum 2 and a plurality of supply rolls 3 are included.

And the capsule forming part is a pair that rotates in opposite directions while facing each other with a cavity formed in a half shape of the capsule, that is, the concave grooves are arranged to correspond to each other on the outer periphery in order to form the outer shell of the soft capsule. A forming roll 4 of is provided, and a wedge 5 for injecting a chemical solution is mounted on an upper side of the forming roll, and the wedge is connected to a chemical solution supplying part to receive a chemical solution.

Accordingly, the two gelatin sheets molded in the sheet forming part are sandwiched between a pair of rotating forming rolls 4 of the capsule forming part, and at the same time, a chemical liquid is injected between the gelatin sheets at regular intervals, heat-sealed, and simultaneously cut and paired. A soft capsule filled with a chemical solution in a gelatin film is continuously produced by encapsulating the gelatin sheet in the form of a roll in a capsule shape.

Next, referring to FIG. 2, when the concave grooves 41 arranged in a pair of forming rolls are arranged in a circular shape, the long axis Xa and the short axis Xb may be due to the capsule shape preferred by users. Most of them have an elliptic shape.

That is, it is usually made of an oblong or oval shape, and in that shape, the long axis Xa is arranged on the forming roll so as to be parallel to the axis A of the forming roll on the surface of the forming roll. For reference, the concave groove 41 shown in FIG. 2 is in the form of an oval, and the oblong has a straight section among the sections forming an ellipse.

On the other hand, the productivity of capsule molding is also related to the rotation speed of a pair of molding rolls. When the molding roll is rotated at a high speed, a large amount of capsule molding is achieved. In the industry, capsule rotation is usually performed by setting the average rotation speed to 3 RPM, but attempts to increase it to 4.5 RPM to 6 RPM or more for mass production have been conducted.

However, if the capsule is molded by rotating the forming roll at 6 rpm or higher, the half-capsule and the half-capsule abutting part are not stably joined, and a gap between them occurs. This is due to the high-speed rotation, and the time for the gelatin film to be bonded on both sides is increased. This is considered a defect that is not sufficiently secured.

Therefore, in order to increase productivity, the rotation speed of the forming roll is increased. In this case, unlike the intention, the defect rate of the molded capsule is increased due to this, and eventually productivity decreases.

Next, gelatin has a sticky property due to the nature of the material, and when it is heated and solutionized, there is a problem that it adheres to the surface of the forming roll, and in the industry, the surface of the forming roll is coated by applying oil to the outer surface as well as the inner surface of the gelatin film during capsule molding The situation is solving the problem of sticking to.

However, the oil applied to the outer surface of the gelatin film is mixed with moisture contained in the gelatin film, and thus there is a problem in that drying is not well performed in the drying step before packaging the product, and product packaging is not smoothly performed.

And if the product is sold with oil on the outer circumference of the capsule, users get oil on their hands when taking it, which is unsanitary and uncomfortable to wash their hands after taking. Also, the stickiness of the oil is transmitted to the skin, causing discomfort. There is a problem such as, it is necessary to go through the step of removing the oil on the outer peripheral surface of the capsule in the product production stage.

Therefore, when applying the oil to the outer surface of the gelatin film in the process of molding the capsule, there is an advantage that it is easily peeled off from the surface of the forming roll, but it is not easy to wash and dry the capsule afterwards, and it is essential to remove the oil on the outer surface. There is a problem that it is necessary to prepare and go through the corresponding process.

For reference, the inventors and applicants of the present invention have been engaged in the same industry for decades, and have applied and registered various inventions related to the capsule molding apparatus.

Among them, registered patent No. 10-1776903 (registration on Sep. 4, 2007), "Chelsel deoiling device", registered patent No. 10-1692276 (registration on Dec. 28, 2016), "oil removal device", registered patent No. 10-0932932 ( 2009.12.11.Registration) "Capsule washing and drying device" is a patent related to a device capable of removing oil applied to the outer surface of a capsule before packaging the product.

As such, in the industry, the gelatin film supplied to the molding apparatus to solve the problem of the adhesion of the gelatin film to the surface of the forming roll has been thought to be a natural and essential process that the oil must be applied to the outer surface as well as the inner surface.

The development of the above-described deoiler, oil removing device, washer, and dryer is focused on how efficiently the oil applied to the outer surface of the capsule can be removed.

And since such a device must be provided, the work process is complicated and long, and there is also a problem that the space for work must be large.

The present invention is to solve the above-mentioned practical problems or limitations in the industry,

First, it is an object of the present invention to provide a capsule molding apparatus having a structure in which a capsule can be molded into a good product even if the molding roll is rotated at a high speed.

Second, it is an object of the present invention to provide a capsule molding apparatus having a structure in which a packaging film can be easily peeled from a molding roll without applying oil to the outer surface of the packaging film supplied to the molding roll.

Third, it is an object of the present invention to provide a capsule molding apparatus capable of solving the above problems through simple structural changes.

Capsule forming apparatus according to the present invention for solving the above problems,

A plurality of concave grooves for capsule molding are arranged on the surface of the forming roll. It is characterized in that the concave groove is arranged so that the long axis of the concave groove and the axis of the forming roll are not parallel to each other.

In addition, the capsule molding apparatus according to the present invention,

The supply rule for supplying the packaging film to the forming roll is arranged, the supply roll includes an oil supply roll for supplying oil only to the inside of the packaging film,

A protruding jaw is formed at the edge of the concave groove, and the jaw has an inclined outer surface, so that the angle formed by the outer surface and the surface of the forming roller is an obtuse angle.

Capsule forming apparatus according to the present invention having the above configuration,

When a pair of forming rolls are engaged with each other to contact the half and half of the capsule with a gelatin sheet, the half and half of the capsules that are joined to each other are staggered due to the arrangement of the recesses with an inclined axis that is not parallel to the forming roll axis. Even if the molding roll is rotated at high speed, the bonding state is not deteriorated, such as the gap between the capsules being molded, and the effect of mass production of good products through high-speed rotation is described.

In addition, in the forming roll on which the packaging film is placed, the outer surface of the jaw formed by the edge of the concave groove is inclined to form an obtuse angle with the surface of the roller, so that the packaging film is formed on the surface of the forming roll which is the space between the concave groove and the concave groove. The effect of easily peeling without sticking can be obtained.

Of course, due to this, the packaging film supplied to the forming roll does not need to be applied with oil only on the inner surface and oil on the outer surface, so there is no need for a de-oiler or oil removal device, which was always required, and washing and drying work It can be expected that the process has also been simplified.

1 is a view showing a conventional capsule molding apparatus derived from Patent No. 10-1268491.
Figure 2 is a view showing a molding roll in a conventional capsule molding apparatus.
3 shows a forming roll according to the invention.
4 is a view showing another example of a forming roll according to the present invention.

Hereinafter, a capsule molding apparatus according to the present invention will be described with reference to the drawings.

As described above, the capsule forming apparatus according to the present invention changes the shape of the concave groove by changing the axis A of the forming roll and the long axis Xa of the concave groove 41 to be parallel to the forming roll surface. The technical feature is that the long axis (Xa) is arranged by tilting the axis (A) of the forming roll.

Through this, when the concave grooves and the concave grooves facing each other are engaged to form the capsule, the concave grooves and the concave groove parts are brought into contact with each other with a more time difference than before, and the time required for joining is also possible, thereby forming the roll It has a first characteristic that high-quality capsules with excellent splicing state can be obtained even when rotating at a high speed.

Next, the capsule molding apparatus according to the present invention, the oil is applied only to the inner surface (Fa) of the packaging film supplied to the forming roll, and without applying oil to the outer surface (Fb), the packaging film is easily pressed from the forming roll surface without sticking. The second feature is to obtain the effect of peeling off.

And in the second feature, the capsule molding apparatus according to the present invention to form a jaw 42 protruding from the edge of the concave groove 41 formed in the forming roll to prevent the packaging film from being detached from the forming roll surface without being pressed , By forming the outer surface (42a) of the jaw to be inclined rather than the conventional vertical shape, the packaging film was easily separated from the forming roller.

Explain in more detail.

FIG. 1 is a capsule molding apparatus that is generally used, and is a diagram illustrated in various cases including Patent No. 10-1268491 filed and registered by the inventor and applicant of the present invention, and the present invention also changes the specific structure of the molding roll It takes the same structure except that.

In other words, the capsule molding apparatus according to the present invention is excellent in capsule molding because the bonding between the packaging films is not interrupted even at high speed by simple structural changes in the capsule molding apparatus that has been used in the past. It has a technical feature in that it can be easily peeled off the surface.

In understanding and explaining the present invention, it is considered that the description of the conventional capsule molding apparatus which is generally used is considered necessary, and thus it will be described with reference to FIG. 1.

The conventional capsule molding apparatus, as confirmed in FIG. 1, is a packaging film supplied in a thin film form from the gelatin supply unit 1 so as to be symmetrical on both sides (that is, it is a gelatin film, hereinafter referred to as a 'gelatin film') ( F) a supply roll (3) comprising a forming drum (2) that is rotated and cooled on an outer circumferential surface, and a plurality of oil supply rolls (31a, 31b) that apply oil to both surfaces of the gelatin film produced by the forming drum. ) And a molding roll 4 encapsulating the gelatin film on both sides so that a plurality of concave grooves 41 formed in the shape of a half of the capsule are arranged to be symmetrical to each other, and the shape of the capsule half shape located between the two molding rolls It is composed of a thermocompression block (also referred to as a 'wedge') 5 which is heated while filling the gelatin film with a chemical solution.

In particular, the gelatin film (F) produced in the forming drum passes through the supply rolls (3) arranged in plural, including the oil supply rolls (31a, 31b) before the film is introduced into the forming roll, as shown in FIG. The supply roll 3 includes an outer oil supply roll 31b for applying oil to the outer surface Fb of the packaging film, and an inner oil supply roll 31a for applying oil to the inner surface Fa of the packaging film. Is done by Therefore, the gelatin film produced in the forming drum goes through the outer oil supply roll (31b) and the inner oil supply roll (31a), the oil is applied to both sides of the film, and the oil is coated on both sides to form. It is fed into the roll 4.

Next, the general capsul molding apparatus configured as described above, when the gelatin solution is applied in a thin film form on the outer peripheral surface of the molding drum 2 in the gelatin supply unit 1 provided symmetrically on both sides, the molding drums located on both sides are While rotating, the gelatin solution applied to the outer circumferential surface is cooled to solidify into a gelatin film (F).

And the gelatin film (F) formed while the forming drum 2 is rotated passes through a supply roll 3 made of an outer oil supply roll 31b and an inner oil supply roll 31a, and the supply roll 3 ), In the process of passing the outer oil supply roll and the inner oil supply roll, as the gelatin film passes, oil is applied to the inner surface (Fa) and the outer surface (Fb) of the film in a thin film form, and the film coated with oil is positive. Each side is supplied with a pair of forming rolls 4.

Figure 2 also shows the operating relationship between the molding roll 4 and the thermocompression block 5 and the gelatin film F installed in the existing molding apparatus, and will be described in detail below, but the capsule molding apparatus according to the present invention In, the specific structure of the concave groove 41 arranged on the surface of the forming roll 4 is changed.

Referring to Figure 2, a pair of forming rolls (4) each gelatin film (F) is passed to the surface, and the gelatin film on both sides from the inside facing each other is sealed to form a capsule,

On each surface of the forming roll, concave grooves 41 are continuously formed in a half shape of the capsule, and suction holes 43 are formed on the bottom surface of the concave grooves.

The suction hole 43 sucks and discharges air in the recessed groove covered with the gelatin film so that the gelatin film is in close contact with the bottom surface of the recessed groove.

And the chin 42 protruding from the surface of the forming roll is formed at the edge of the recess.

The jaw 42 presses the gelatin film on both sides together with the jaw formed in the concave groove of the opposite forming roll so that the gelatin film on both sides is sealed and the capsule formed by sealing the gelatin film is separated from the gelatin film of the cut. As possible.

However, in the conventional capsule molding apparatus, the concave grooves 41 arranged on the surface of the forming roll are usually formed in an elliptical shape having a long axis Xa and a short axis Xb, but the long axis Xa of the concave groove 41 is a forming roll The concave groove 41 is generally arranged parallel to the axis A of.

In addition, the jaw 42 protruding from the edge of the concave groove 41 has a vertical shape from the surface of the forming roll. Since the vertical shape makes it easy to mold the jaw in the forming roll, the jaw 42 protruding from the forming roll to the edge of the concave groove in the industry is always showing a vertical shape.

These concave grooves 41 are continuously arranged on the forming roll, and it is common to arrange the maximum number that can be arranged on the forming roll surface for productivity. That is, the concave groove 41 is stuck to the forming roll with a narrow gap like a mosaic.

That is, when forming the concave groove 41 on the forming roll, the long axis Xa of the concave groove and the axis A of the forming roll are parallel to each other, and the protruding jaw 42 of the concave groove is perpendicular to the forming roll surface. It is practiced to be formed so as to protrude as an industry custom.

In this situation, attempts have been made to increase the production speed of the capsule by increasing the rotational speed of the forming roll, and the rotational speed (3RPM), which is usually about 3 rotations per minute, is increased to about 4.5RPM, and furthermore, the capsule is formed by increasing the rotational speed to 6RPM. Attempts are being made.

However, when the forming roll is rotated at a high speed, a pair of concave grooves 41 are brought into contact with each other to form a capsule, and the parts that come into contact with each other are not stably joined, but a gap between them occurs. This is attributed to the fact that due to the high-speed rotation, sufficient time for facing the concave grooves to be joined to each other was not achieved.

That is, when the high-speed rotation is performed in a state where the concave grooves are arranged such that the long axis (Xa) of the concave grooves is parallel to the axis (A) of the forming roll, the time for the concave grooves and the concave grooves to contact each other decreases. In particular, in the case of an oblong-shaped concave groove, a section formed by a long date becomes a structure that comes into contact with the concave groove section of a forming roll facing within a short time following high-speed rotation, so that the bonding state is not maintained and the gap is widened. Lose.

In addition, if the gelatin film is used as a packaging film while the concave groove is attached to the surface of the forming roll, gelatin is trapped in the narrow space between the concave groove and the concave groove, and the sticky material does not easily fall out of the narrow space. A problem arises in peeling from the back forming roll. In particular, the gelatin film, which has sticky properties, is more difficult to escape because it is a tight space.

Therefore, in order to solve this problem, as described above, the outer oil supply roll 31b is applied with oil to both the inner and outer surfaces of the film by passing the gelatin film together with the inner oil supply roll 31a. It is a situation in which the film is not easily caught in the narrow space between the recess and the recess of the forming roll and is easily peeled off the surface of the forming roll.

However, if oil is applied to the outer surface of the gelatin film as in the prior art, it is necessary to go through a device such as an oil removal device or a deoiler capable of removing the oil from the capsule surface, and oil and water are mixed even in the washing. As a result, there have been operational limitations such as a problem that drying does not work well in the drying step before packaging the product.

Therefore, in the present invention, it is possible to solve the above-mentioned conventional problems or limitations by simply changing the structure of the concave groove 41 in the forming roll as shown in FIG. 3. That is, even if the molding roll is rotated at a high speed, a good product can be obtained without defects such as a gap between the capsule and the capsule abutting, and a packaging film can be easily peeled from the molding roll after capsule molding.

First, the long axis Xa of the concave groove 41 arranged on the surface of the forming roll is arranged so as not to be parallel to the axis A of the forming roll, unlike the conventional one.

The concave groove 41 according to the present invention adopts an elliptical shape having a long axis and a short axis rather than a circular shape. It is in the form of an oval or oblong.

Referring to FIGS. 3 and 4, the concave groove 41 according to the present invention forms an angle θ1 of about 20 degrees based on the long axis Xa of the concave groove 41 based on the axis A of the forming roll. It is preferred that the angle of inclination θ1 is greater than 0 degrees and less than 180 degrees, more preferably greater than 0 degrees and less than 90 degrees, or greater than 90 degrees and less than 180 degrees. Do.

When the capsule is molded, the portions that are brought into contact with each other by the forming rolls facing each other and are joined to the half and half of the capsule are the jaws 42 formed at the edge of the concave groove 41.

And the jaw 42 is a symmetrical form of the left and right relative to the long axis (Xa) of the concave groove, the angle (θ1) of the inclined long axis (Xa) is inclined relative to the axis (A) of the forming roll than 0 degrees Larger than 90 degrees, or larger than 90 degrees and smaller than 180 degrees, the jaws 42, which are symmetrical from side to side with respect to the long axis Xa of the concave groove, are spliced with a parallax, and the time when the capsule is completely bonded is completed. By securing more, it is possible to expect a more stable joint state even if the high-speed rotation proceeds.

Next, in the jaw 42 protruding from the edge of the concave groove 41, the outer surface 42a of the corresponding jaw is inclined, and the angle θ2 formed by the outer surface 42a and the surface of the forming roller It is formed at an obtuse angle.

Due to the inclined structure, the gelatin film is introduced in the process of rotating the forming roll, and even if the gelatin film touches the surface of the forming roll and is sandwiched between the concave groove and the narrow space of the concave groove, the gelatin film is pulled during the operation of the forming apparatus. By applying the force, the gelatin film smoothly and naturally exits the corresponding narrow space on the inclined outer axis surface, thereby eliminating the need to apply oil to the outer surface of the gelatin film.

For reference, when a small bowl formed vertically with a side having a smaller size than the corresponding grout in a vertically formed bowl, it is difficult for the small bowl to escape from the large bowl.

Considering a phenomenon in which a small bowl is easily removed from a large bowl by riding on an inclined surface when a small bowl formed with an inclined side surface is smaller than the corresponding bowl in a bowl formed with an inclined side surface,

The present invention can be more easily understood.

And due to the structure of the jaw 42 of the concave groove 41 as described above, the oil supply in the capsule forming apparatus according to the present invention is an inner oil supply roll 31a that supplies oil only to the inner surface Fa of the gelatin film. Only is provided. Therefore, in the capsule forming apparatus of FIG. 1 described as a prior art device, the outer oil supply roll 31b is removed and oil is not supplied to the corresponding position, and the supply roll responsible only for transporting the gelatin film replaces the corresponding position. do.

In describing the present invention in the above, the present invention has been described with reference to the accompanying drawings, but the present invention is capable of various modifications, alterations and substitutions by those skilled in the art, and such modifications, alterations and substitutions belong to the protection scope of the present invention. Should be interpreted.

* Explanation of reference numerals for main parts of drawings *
F: Gelatin (packaging) film
Fa: Inner surface of gelatin (packaging) film Fb: Outer surface of gelatin (packaging) film
1: gelatin supply unit 2: forming drum
3: Feed roll
31a: inner oil supply roll 31b: outer oil supply roll
4: forming roller
41: concave groove 43: suction hole
42: chin 42a: outer surface
A: Shaft of forming roll
Xa: Long axis of concave groove Xb: Short axis of concave groove
θ1: angle between θ2: angle
5: thermocompression block

Claims (3)

In the capsule molding apparatus in which the packaging film is packaged for the object to be packaged while the supplied packaging film passes through the molding roll,
A plurality of concave grooves for capsule formation are arranged on the surface of the forming roll. The concave groove is arranged so that the long axis of the concave groove and the axis of the forming roll are not parallel to each other,
In the capsule forming apparatus, a supply rule for supplying a packaging film to a forming roll is arranged, and the supply roll includes a roll for supplying oil to supply oil only to the inside of the packaging film,
A capsule forming apparatus characterized in that a protruding jaw is formed at an edge of the concave groove, and the jaw has an inclined outer surface, such that an angle formed by the outer surface and the surface of the forming roller is an obtuse angle. According to claim 1,
The concave groove is an oblong (oblong) or oval (oval) capsule molding apparatus characterized in that the shape.

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