1. The utility model provides a functional device of filming of hard hollow capsule, its characterized in that includes reservoir (1) and sets up be stained with liquid cam (2) in reservoir (1) top, be stained with liquid cam (2) through first pivot (4) normal running fit on reservoir (1), the one end coaxial coupling of first pivot (4) has drive component (6), be stained with liquid cam (2) unsmooth roll fit and have scribbled liquid concave wheel (3), scribble liquid concave wheel (3) and pass through second pivot (5) normal running fit on reservoir (1), scribble liquid concave wheel (3) both ends and set up respectively to be in the same place with capsule mould (7) looks adaptation annular bayonet socket and capsule mould (7) roll fit, capsule mould (7) clearance fit is on transport mechanism (8).

2. A functional coating apparatus for hard hollow capsules according to claim 1, wherein said conveying means (8) comprises a plurality of hinge plates (801) connected in series, said two hinge plates (801) being connected in series to form a sleeve for fixing the capsule mold (7), said capsule mold (7) being rotatably fitted to both ends of said hinge plate (801) sleeve.

3. A functional coating apparatus for hard hollow capsules according to claim 2, wherein the capsule mold (7) comprises a body mold (701) and a cap mold (702), the body mold (701) and the cap mold (702) are respectively rotatably fitted on two sides of the sleeve of the hinge plate (801).

4. The functional coating device for hard hollow capsules according to claim 1, characterized in that a shaft (10) is arranged between the two liquid dipping cams (2).

5. A functional coating device for hard hollow capsules according to claim 1, characterized in that the dipping cam (2) is provided with a shaft sleeve (9) near the side wall of the reservoir (1).

6. The functional coating device for hard hollow capsules according to claim 1, wherein the ring-shaped bayonets at the two ends of the coating liquid concave wheel (3) are the cap body same wheel or the cap body separate wheel.

7. A method for coating a capsule, comprising the steps of:

s10: cutting the produced capsule blank, and performing primary inspection;

s11: respectively feeding the capsule cap bodies which are not sleeved after cutting and preliminary inspection into a capsule falling device (11), wherein the capsule falling device (11) can adjust and arrange the semi-finished capsule body cap products and then enter a capsule sorting device (12) to enable the semi-finished capsule body cap products to face in the same direction, the semi-finished capsule body cap products fall into a channel after passing through the capsule sorting device (12), a conveying mechanism (8) corresponding to a body die (701) and a cap die (702) is connected below a channel opening, and the semi-finished capsule body cap products are respectively sleeved on the body die (701) and the cap die (702) in sequence;

s12: through chain transmission, a capsule mold (7) with a semi-finished capsule product enters a coating device (14), a storage tank (1) is filled with functional liquid through a functional liquid storage barrel (13), a liquid dipping cam (3) is dipped with the functional liquid in the storage tank (1), the liquid dipping cam (2) and a liquid coating concave wheel (3) rotate for 360 degrees through relative rolling, the liquid coating concave wheel (3) and a body mold (701) and a cap mold (702) on the capsule mold (7) rotate, and the functional liquid on the liquid coating concave wheel (3) is uniformly coated on the semi-finished capsule product sleeved on the capsule mold (7);

s13: the hinge plate (701) leaves the liquid coating concave wheel (3) along with the rotation of the rotating gear (15), the semi-finished capsule fixed on the capsule mould (7) of the hinge plate (801) is dried, and the conveying mechanism (8) rotates from the coating device (14) to the demolding device (16) for 10-20 minutes for drying;

s14: after the semi-finished capsule product coated with the functional liquid is dried, the semi-finished capsule product on the capsule mold (7) is carried into a demolding device (16) through the rotation of the rotating gear (15), and the semi-finished capsule product sleeved on the capsule mold (7) is demolded;

s15: the conveying mechanism (8) belt drives the capsule mould (7) to return to the starting point through the hinge piece (801), and the steps are repeated.

8. A method for coating capsules according to claim 7, characterized in that the rotation speed of the dipping cams (2) and the coating concave wheel (3) is higher than the speed of the transmission gear (15).

9. A method of coating a capsule according to claim 7, wherein a plurality of coating means (14) are provided between the capsule arranging means (12) and the releasing means (16) to realize a multiple coating.

10. A method of coating a capsule according to claim 7, wherein said functional liquid is an acid-resistant, alkali-resistant or antioxidant functional liquid.

Technical Field

At present, the development of filling contents of the hollow capsules is rapid, the requirements are various, for hard hollow capsules, the requirements are eight-door, the refinement is benefited, and the quality requirements are more and more. The most of the daily intake ingredients are usually digested and absorbed in the stomach by gastric acid, but some medicines need to be dissolved and absorbed in the intestinal tract, and in this case, an acid-resistant capsule is needed to fill and package the contents.

Only one product with improved functionality of the hard hollow capsule in the market is acid-resistant, commonly called enteric-coated capsule. The preparation method is generally finished by adopting an external wrapping method, the prepared acid-resistant liquid is dipped on the surface of a hard hollow capsule blank before the conventional capsule is demoulded, an acid-resistant film is formed on the surface of the capsule body, and the acid-resistant film reaches intestinal tracts through gastric acid to disintegrate the content and exert the effect. The acid-proof liquid is prepared from acid-proof material and inorganic reagent liquid, such as acetone and alcohol. However, inorganic liquid is easy to volatilize, and the concentration of the acid-resistant liquid is increased due to volatilization of the acid-resistant liquid, so that the thickness of an acid-resistant film layer is influenced, the uniformity of a product cannot be ensured, and the acid-resistant liquid is gasified. In workshop production, the smell is unpleasant, and due to the requirement of the process, in order to accelerate drying, heating and blowing are required to accelerate the volatilization of inorganic liquid, so that the inorganic liquid is further diffused, the physical and mental damage of staff is caused, and meanwhile, the risk of flammability and explosiveness is caused. The processes of demoulding, cutting, machine inspection, nesting and the like are required to be carried out on the product by the outsourcing process, the acid-resistant layer can be rubbed and broken in the mechanical operation in the subsequent process, particularly, the cap section is cut after demoulding, a cutting opening without the acid-resistant layer can be formed, the cutting opening is easy to be corroded by gastric acid, and the requirement of targeted arrival of the content cannot be met. In order to ensure the quality, when the functional liquid is dipped, the functional liquid can not be controlled accurately due to the equipment, the length of the part which is actually needed needs to be longer, the redundant part dipped with the functional liquid is cut into waste products in the cutting process, the waste products are not easy to recycle, the functional liquid can not be dissolved in water to cause pollution, and the cost can be increased by thirty percent.

Disclosure of Invention

Aiming at the problems of the existing product quality defect, serious waste and working environment, the invention aims to ensure the product quality, greatly reduce the production cost and better improve the working environment.

The invention is realized by the following technical scheme:

the utility model provides a functional device of filming of hard hollow capsule, includes the reservoir and sets up the liquid cam of being stained with in the reservoir top, be stained with the liquid cam and pass through first pivot normal running fit on the reservoir, the one end coaxial coupling of first pivot has the drive unit, be stained with the unsmooth roll fit of liquid cam and have scribbled liquid concave wheel, scribble liquid concave wheel and pass through second pivot normal running fit on the reservoir, scribble liquid concave wheel both ends and set up respectively to be in the same place with capsule mould looks adaptation annular bayonet socket and capsule mould roll fit, capsule mould clearance fit is on transport mechanism.

Further, transport mechanism includes a plurality of hinge pieces that can meet from beginning to end, two hinge pieces meet from beginning to end and can form the sleeve that is used for fixed capsule mould, capsule mould normal running fit the hinge piece sleeve both ends.

Further, the capsule mold comprises a body mold and a cap mold, wherein the body mold and the cap mold are respectively matched with two sides of the hinge piece in a rotating mode.

Further, a shaft cylinder is arranged between the two liquid dipping cams.

Further, a shaft sleeve is arranged on the liquid dipping cam close to the side wall of the liquid storage tank.

Furthermore, the annular bayonets at the two ends of the liquid coating concave wheel are the same wheel of the cap body or the separate wheels of the cap body.

The coating method of the capsule specifically comprises the following steps:

s10: cutting the produced capsule blank, and performing primary inspection;

s11: respectively feeding the capsule cap bodies which are not sleeved after cutting and preliminary inspection into a capsule falling device, wherein the capsule falling device can adjust and arrange the semi-finished product of the capsule body cap and then enter a capsule finishing device to enable the semi-finished product of the capsule body cap to be consistent in orientation, and then fall into a channel after passing through a capsule finishing device, and the semi-finished product of the capsule body cap is connected with a conveying mechanism corresponding to a body die and a cap die below a channel opening and is respectively sleeved on the body die and the cap die in sequence;

s12: the capsule mould with the semi-finished capsule enters a coating device through chain transmission, a storage tank is filled with functional liquid through a functional liquid storage barrel, a liquid dipping cam dips the functional liquid in the storage tank through rotation, the liquid dipping cam and a liquid coating concave wheel roll relatively, the liquid coating concave wheel rotates 360 degrees with a body mould and a cap mould on the capsule mould, and the functional liquid on the liquid coating concave wheel is uniformly coated on the semi-finished capsule on the capsule mould;

s13: the hinge piece leaves the liquid coating concave wheel along with the rotation of the rotating gear, a semi-finished capsule product fixed on a capsule mould of the hinge piece is dried, and the conveying mechanism rotates from the film coating device to the demoulding device for 10-20 minutes for drying;

s14: after the capsule semi-finished product coated with the functional liquid is dried, the capsule semi-finished product on the capsule mold is brought into a demolding device through the rotation of the rotating gear, and the capsule semi-finished product sleeved on the capsule mold is demolded;

s15: the conveying mechanism belt drives the capsule mould to return to the starting point through the hinge piece, and the steps are repeated.

Further, the rotation speed of the liquid dipping cam and the liquid coating concave wheel is greater than that of the transmission gear.

Furthermore, a plurality of coating devices can be arranged between the capsule finishing device and the demoulding device, so that compound coating is realized.

Further, the functional liquid is acid-resistant, alkali-resistant or antioxidant.

The method is carried out in a closed environment, avoids the volatilization of inorganic liquid, ensures the concentration of functional liquid, reduces the damage to the mind and body of workers and greatly improves the production safety. The alkali and acid resistance of the glue solution can also be selected according to the capsule production type. The method of the invention firstly cuts and releases the mould, and then coats the alkali-resistant and acid-resistant layer, so that the cutting surface of the capsule can be coated with the coating layer, the coating layer is not easy to oxidize, the cutting is not needed after coating liquid, and the production cost is saved. Meanwhile, the film coating of the semi-finished capsule product which is not sleeved after cutting and initial inspection is more uniform.

Drawings

FIG. 1 is a perspective view of a functional coating device for hard hollow capsules according to the present invention;

FIG. 2 is a schematic sectional view of the functional coating device for hard hollow capsules according to the invention;

FIG. 3 is a schematic view showing the steps of the coating method of the capsule of the present invention;

in the figure: 1-a liquid storage tank, 2-a liquid dipping cam, 3-a liquid coating concave wheel, 4-a first shaft rod, 5-a second shaft rod, 6-a driving part, 7-a capsule mould, 701-a body mould, 702-a cap mould, 8-a conveying mechanism, 801-a hinge sheet, 9-a shaft sleeve, 10-a shaft barrel, 11-a capsule placement device, 12-a capsule finishing device, 13-a functional liquid storage barrel, 14-a film coating device, 15-a rotating gear and 16-a demoulding device.

Detailed Description

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention

The technical scheme of the invention is described in detail in the following with reference to the attached drawings of the specification:

referring to fig. 1-2, the invention provides a functional coating device for a hard hollow capsule, which specifically comprises a liquid storage tank 1 and a liquid dipping cam 2 arranged above the liquid storage tank 1, wherein the liquid dipping cam 2 is rotatably matched on the liquid storage tank 1 through a first rotating shaft 4, one end of the first rotating shaft 4 is coaxially connected with a driving part 6, and the driving part 6 drives the liquid dipping cam 2 to rotate through the first rotating shaft. The liquid dipping cam 2 is matched with a liquid coating concave wheel 3 in a concave-convex rolling mode, the liquid coating concave wheel 3 is matched with the liquid storage tank 1 in a rotating mode through a second rotating shaft 5, two ends of the liquid coating concave wheel 3 are respectively provided with an annular bayonet matched with the capsule mold 7, the capsule mold 7 is matched together in a rolling mode, and the capsule mold 7 is movably matched with the conveying mechanism 8.

The specific structure of the conveying mechanism is that a plurality of hinge pieces 801 can be connected in front and back, two hinge pieces 801 are connected in front and back to form a sleeve for fixing the capsule mould 7, and the capsule mould 7 is rotatably matched at two ends of the sleeve of the hinge pieces 801.

In the present invention, the capsule mold 7 specifically includes a body mold 701 and a cap mold 702 according to production requirements, and the body mold 701 and the cap mold 702 are respectively and rotatably fitted to two sides of the sleeve formed by the two hinge pieces 801. The liquid dipping cams 2 and the liquid coating concave wheels 3 can be arranged in parallel, so that the number of production lines is increased. Meanwhile, for different production requirements, the annular bayonets at the two sides of the liquid coating concave wheel 3 are the same cap body wheel or the split cap body wheel, and correspondingly, for the hinge piece 801, the die body also needs to be correspondingly adjusted.

In the invention, the liquid dipping cams 2 are arranged on the first rotating shaft 4, in order to better fix the distance between the two liquid dipping cams 2, a shaft cylinder 10 is arranged between the two liquid dipping cams 2, a shaft sleeve 9 is arranged on the side wall of the liquid dipping cam 2 close to the liquid storage tank 1, and the liquid dipping cams are fixed by the shaft cylinder 10 and the shaft sleeve 9 and do not move relatively.

The principle of the invention is as follows: in injecting into reservoir 1 through outside stock solution bucket with function liquid accuse volume, be stained with below the function liquid level that liquid cam 2 half volume of soaking in reservoir 1, drive part 6 through 4 one ends of first axostylus axostyle rotates and drives and be stained with liquid cam 2 and rotate and dip in and get the function liquid, through being stained with liquid cam 2 and the unsmooth roll cooperation of scribbling liquid concave wheel 3, will be stained with the even transmission of function liquid on the liquid cam 2 and scribble liquid concave wheel 3. The semi-finished capsule is sleeved on the capsule mould 7, the hinge piece is driven by the external gear to transmit, the semi-finished capsule sleeved on the capsule mould 7 and bayonets at two ends of the liquid coating concave wheel 3 roll relatively, and the functional liquid on the liquid coating concave wheel 3 is uniformly coated on the semi-finished capsule to finish coating. This embodiment can go on in relative airtight space, has better reduced the volatilization of inorganic liquid in the functional liquid, and abundant stable functional liquid concentration has very big reduction to staff's health harm.

Referring to fig. 3, the present invention provides a method for coating a capsule, which specifically includes the following steps:

s10: cutting the produced capsule blank, and performing primary inspection;

s11: respectively feeding the capsule cap bodies which are not sleeved after cutting and preliminary inspection into a capsule falling device 11, wherein the capsule falling device 11 can adjust and arrange the semi-finished product of the capsule body cap, and the semi-finished product of the capsule body cap is consistent in orientation after entering a capsule finishing device 12, and falls into a channel after passing through the capsule finishing device 12, and is connected with a conveying mechanism 8 corresponding to a body die 701 and a cap die 702 under the opening of the channel, so that the semi-finished product of the capsule body cap is respectively sleeved on the body die 701 and the cap die 702 in sequence;

s12: the capsule mould 7 with the semi-finished capsule enters a coating device 14 through chain transmission, a storage tank 1 is filled with functional liquid through a functional liquid storage barrel 13, a liquid dipping cam 3 dips the functional liquid in the storage tank 1, a liquid dipping cam 2 and a liquid coating concave wheel 3 roll relatively, the liquid coating concave wheel 3 rotates 360 degrees with a body mould 701 and a cap mould 702 on the capsule mould 7, and the functional liquid on the liquid coating concave wheel 3 is uniformly coated on the semi-finished capsule on the capsule mould 7;

s13: the hinge plate 701 leaves the liquid coating concave wheel 3 along with the rotation of the rotating gear 15, the semi-finished capsule fixed on the capsule mould 7 of the hinge plate 801 is dried, and the conveying mechanism 8 rotates from the coating device 14 to the demoulding device 16 for 10-20 minutes for drying;

s14: after the semi-finished capsule product is dried, the semi-finished capsule product on the capsule mold 7 is brought into a demolding device 16 through the rotation of the rotating gear 15, and the semi-finished capsule product sleeved on the capsule mold 7 is demolded;

s15: the conveyor 8 belt drives the capsule mould 7 to return to the starting point through the hinge plate 801, and the steps are repeated.

In order to fully coat the functional liquid on the semi-finished capsule, the rotating speed of the liquid dipping cam 2 and the liquid coating concave wheel 3 is far higher than that of the transmission gear 15.

In order to realize a multi-production line or realize a multi-coating, a plurality of coating devices 14 can be arranged between the capsule finishing device 11 and the demoulding device 16, so that a single-layer, double-layer or multi-coating, such as one-layer oxidation resistance and one-layer acid resistance, can be realized. Thus, the functional liquid may be an acid, alkali or antioxidant functional liquid.

According to the capsule coating method, the functional liquid storage barrel 13 is closed, the functional liquid is conveyed to the liquid storage tank 1 through the guide pipe, and the liquid storage tank 1 is in a relatively closed state, so that the functional liquid is not easy to volatilize. Even if the volatile matter volatilizes, the volatile matter can not be inhaled by the staff, and the concentration of the functional liquid is ensured by the reduction of volatilization, so that the functional liquid is not easy to dilute. In addition, in the method, the functional liquid can be adjusted, a plurality of coating devices 14 are arranged on a production line or a single line is arranged, double-line production is realized, single-layer, double-layer and multi-layer coating can be realized, such as acid resistance, acid and alkali resistance and the like, and the adjustment can be conveniently and quickly carried out according to production requirements.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.