Continuous coating system for tablet production

Abstract

The invention provides a continuous coating system for tablet production, which comprises two groups of supporting legs and an adjusting assembly, the inner sides of the front and rear ends of the two groups of supporting legs are respectively provided with a group of side frames for supporting the two groups of supporting frames, and a material spraying frame comprises a supporting seat and a material spraying pipe. The rear side of the upper end of the supporting seat is provided with a group of extension rods used for adjusting the distance interval of the adjusting rods, and the outer side of the rear end of each extension rod is provided with a group of connecting seats used for being connected with the adjusting rods. The tablet material can be overturned by using the overturning roller, the external coating material can be injected by using the injection port, and the injection operation in the corresponding flow direction can be carried out according to the actual continuous coating flow and different coating materials.

Description

Technical Field

[0001] The invention belongs to the field of tablet continuous technology and relates to a continuous coating system for tablet production. Background Art

[0002] Existing tablet coating equipment has several shortcomings when processing coatings of different materials, mainly in terms of coating uniformity, coating efficiency, and adaptability to special materials. First, due to the differences in the physical and chemical properties of different coating materials, such as viscosity, density, drying rate, etc., it is difficult for conventional coating equipment to ensure that each material can be evenly covered on the tablet surface. Coating efficiency is also a problem because different materials have different drying times, which may lead to reduced production efficiency. Some special materials, such as sustained-release materials or high-viscosity materials, have special requirements for the equipment's spray system and temperature control, and conventional equipment may not be able to meet these requirements.

[0003] The reason for these shortcomings is that the existing equipment design is not versatile and flexible enough, and cannot be optimized for different materials. Conventional coping methods include adjusting spray parameters, changing drying temperature and time, and changing coating materials. The disadvantages of these methods are that they often require downtime for adjustment, affecting production continuity, and may require professional technicians to operate, increasing production costs and complexity. Frequent adjustments and material changes may cause increased equipment wear and shorten equipment life. Therefore, there is an urgent need for a continuous coating system for tablet production to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a continuous coating system for tablet production to solve the problems raised in the above background technology.

[0005] The present invention is realized by the following technical scheme: A continuous coating system for tablet production, comprising: supporting feet and an adjusting assembly, wherein the supporting feet are provided with two groups, and a group of side frames for supporting the two groups of supporting frames are provided on the inner sides of the front and rear ends of the two groups of supporting feet, a group of drying components for coating and drying tablet materials are provided on the upper ends of the rear side side of the side frames, and a plurality of spray frames for coating the outer surfaces of tablet materials are provided on the left and right sides of the drying components;

[0006] The spraying frame includes a support seat and a spraying pipe, a group of extension rods for adjusting the distance between the adjustment rods are arranged on the rear side of the upper end of the support seat, and a group of connecting seats for connecting the adjustment rods are arranged on the outer side of the rear end of the extension rods;

[0007] A group of adjusting rods for adjusting the height position of the support block and the two groups of flip rollers are provided at the lower end of the connecting seat. The adjusting rods are an electric telescopic column. A group of support blocks for connecting with the two groups of flip rollers are provided at the lower end of the adjusting rods. Two groups of flip rollers for flipping tablet materials are provided on the right side of the support blocks. The height position of the support block and the two groups of flip rollers can be adjusted by using the adjusting rods, and the flip rollers can be used to flip the tablet materials.

[0008] As a preferred embodiment, the two groups of flip rollers are active rotating mechanisms, and an external driving device can be used as a power source for the flip rollers. Several groups of flipping plates are arranged on the outside of the two groups of flip rollers, and the lower ends of the flipping plates are in contact with the upper ends of the conveyor belts. The interior of the support seat is a hollow structure, and a group of injection ports are arranged on the upper end of the front side of the support seat. The interior of the injection port is connected with the interior of the support seat, and the interior of the support seat is connected to the spray pipe through a group of self-priming pumps. The external coating material can be injected by using the injection port, and the injection operation can be performed in the corresponding process direction according to the actual continuous coating process and different coating materials.

[0009] As a preferred embodiment, the spray pipe includes a tube body and a discharge port. The top of the spray pipe is a sealed structure tube body. The lower end of the tube body is provided with several groups of discharge ports for spraying coating materials. Each group of discharge ports is provided with a group of internal stirring heads for preventing internal blockage. The internal stirring heads are conical rotor blades and are arranged in the middle position inside the discharge port. The internal stirring heads and the discharge ports can be used to prevent the coating material from solidifying and clogging inside the discharge port.

[0010] As a preferred embodiment, the drying component includes a vertical adjustment frame and a base, the base is installed on the upper end of the rear side frame and is fixed thereto by bolts, and a group of vertical adjustment frames for adjusting the height position of the drying box are provided on the upper end of the base.

[0011] As a preferred embodiment, a group of mounting plates is provided on the left side of the vertical adjustment frame, a group of inner positioning frames for connecting and positioning with the drying box is provided on the left side of the mounting plate, a group of drying boxes for drying coated tablets is provided on the left side of the inner positioning frame, a group of dust-blocking nets for preventing air and dust from entering are provided at the upper end of the drying box, an annular electric heating wire is provided inside the drying box, two groups of air ducts for conducting dry air are provided on the front side of the drying box, and several groups of drying tubes for drying coated tablets are provided at the lower end of each group of air ducts, the coated tablets can be dried by using dust-blocking nets, the air and dust can be prevented from entering by using dust-blocking nets, and the coated tablets can be dried by using drying tubes.

[0012] As a preferred embodiment, the adjustment component includes a connecting frame, a clamping frame, a telescopic rod and a limit plate. The upper end of the connecting frame is provided with a group of clamping frames for clamping and connecting the telescopic rods. The rear side of the clamping frame is provided with a group of telescopic rods for adjusting the position of the limit plates. The rear side of the telescopic rod is provided with a group of limit plates for keeping the tablets in the upper end position of the conveyor belt. The tablets can be kept in the upper end position of the conveyor belt by using the limit plates, thereby keeping the tablet materials uniformly arranged and guided between the limit plates and the baffle plates to ensure the accurate effect of coating the tablet materials.

[0013] As a preferred embodiment, a group of motors for providing running power to the conveyor belt are provided on the right side of the supporting foot, a group of conveyor belts for guiding and moving tablet materials are provided on the upper end of the motor, a group of baffle plates for limiting the movement of tablet materials are provided on the rear side of the upper end of the conveyor belt, and a group of positioning frames for limiting the position of several groups of spray racks are provided on the front side of the baffle plate.

[0014] As a preferred embodiment, several groups of the spray racks are staggered and are all independent mechanisms. Several groups of the spray racks can transmit the same coating material by using external sealing tubes. Two groups of adjustment components for limiting and guiding the moving range of the tablet material are provided on the upper end of the front side frame, and a group of rangefinders for measuring and positioning the front side of the baffle plate is provided on the right side of each group of the adjustment components.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: by using the adjusting rod to adjust the height position of the support block and the two sets of turning rollers, the turning rollers can be used to turn the tablet material;

[0016] The external coating material is injected through the injection port, and the injection operation is performed in the corresponding process direction according to the actual continuous coating process and different coating materials. The internal stirring head and the discharge port are used to prevent the coating material from solidifying and clogging inside the discharge port. The dust-proof net is used to dry the coated tablets.

[0017] The dust-blocking net can be used to prevent the entry of air dust, the drying tube can be used to dry the coated tablets, and the limiting plate can be used to keep the tablets in position at the upper end of the conveyor belt, thereby keeping the tablet materials uniformly arranged and guided between the limiting plate and the baffle plate to ensure the accurate effect of coating the tablet materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of a top view of the structure of a continuous coating system for tablet production according to the present invention from the right front oblique side;

[0020] Figure 2 It is a schematic diagram of the structure of a drying component in a continuous coating system for tablet production of the present invention, viewed from the left oblique front side;

[0021] Figure 3 It is a schematic diagram of the structure of the front row spray rack in a continuous coating system for tablet production of the present invention, viewed from the left oblique front side;

[0022] Figure 4 It is a schematic diagram of the structure of a spray pipe in a continuous coating system for tablet production of the present invention, viewed from the bottom on the left side;

[0023] Figure 5 for Figure 1 A magnified view of the structure in the middle.

[0024] In the figure: 100-supporting foot, 110-side frame, 120-motor, 130-supporting frame, 140-inner drying group, 150-conveyor belt, 160-blocking plate, 170-positioning frame, 180-spraying frame, 190-distance meter, 200-drying component, 210-adjusting component;

[0025] 18a-support seat, 18b-extension rod, 18c-connection seat, 18d-adjustment rod, 18e-support block, 18f-turning roller, 18g-spraying pipe;

[0026] g1-tube body, g2-internal stirring head, g3-discharging port

[0027] 20a-vertical adjustment frame, 20b-mounting plate, 20c-inner positioning frame, 20d-drying box, 20e-air guide pipe, 20f-drying pipe, 20g-base;

[0028] 21a-connecting frame, 21b-clamping frame, 21c-telescopic rod, 21d-limiting plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5 A continuous coating system for tablet production, comprising: supporting legs 100, spraying racks 180, drying components 200 and adjusting components 210, wherein the supporting legs 100 are provided with two groups, and a group of side frames 110 for supporting the two groups of supporting racks 130 are provided on the inner sides of the front and rear ends of the two groups of supporting legs 100, a group of drying components 200 for coating and drying tablet materials are provided on the upper ends of the rear side frames 110, and several groups of spraying racks 180 for coating the outer surface of tablet materials are provided on the left and right sides of the drying components 200;

[0031] The spraying frame 180 includes a support seat 18a, a turning roller 18f and a spraying pipe 18g. A group of extension rods 18b for adjusting the distance between the adjustment rods 18d are provided at the rear side of the upper end of the support seat 18a. A group of connecting seats 18c for connecting the adjustment rods 18d are provided at the outer side of the rear end of the extension rods 18b.

[0032] A group of adjusting rods 18d for adjusting the height position of the support block 18e and the two groups of flip rollers 18f are provided at the lower end of the connecting seat 18c. The adjusting rod 18d is an electric telescopic column. A group of supporting blocks 18e for connecting with the two groups of flip rollers 18f are provided at the lower end of the adjusting rod 18d. Two groups of flip rollers 18f for flipping the tablet material are provided on the right side of the supporting block 18e. The height position of the supporting block 18e and the two groups of flip rollers 18f can be adjusted by using the adjusting rod 18d, and the flip rollers 18f can be used to flip the tablet material.

[0033] The interior of the support seat 18a is a hollow structure, and the spray pipe 18g includes a tube body g1 and a discharge port g3. The top of the spray pipe 18g is a sealed structure tube body g1, and the lower end of the tube body g1 is provided with several groups of discharge ports g3 for spraying coating materials. Each group of discharge ports g3 is provided with a group of internal stirring heads g2 for preventing internal blockage. The internal stirring head g2 is a conical rotor and is arranged in the middle position inside the discharge port g3. The internal stirring head g2 and the discharge port g3 can be used to prevent the coating material from solidifying and clogging inside the discharge port g3.

[0034] See also Figure 1-Figure 5As the first embodiment of the present invention: before the staff needs to coat the tablet material, the staff pre-loads different types of coating materials into the support seat 18a according to the coating order of the tablets. Since a group of injection ports are provided at the upper end of the front side of the support seat 18a, the inside of the injection ports is communicated with the inside of the support seat 18a, and the inside of the support seat 18a is connected to the spray pipe 18g through a group of self-priming pumps. The external coating material can be injected by using the injection ports, and the injection operation in the corresponding process direction is performed according to the actual continuous coating process and different coating materials. Then the staff places the tablet material that needs to be coated on the upper end of the conveyor belt 150, and then the conveyor belt 150 is moved along the conveyor belt 150. 0 drives the tablet material to move on the upper end of the conveyor belt 150, and several groups of spray racks 180 perform spraying operations on the upper end of the tablet. When the tablet moves between the two groups of flip rollers 18f, since the two groups of flip rollers 18f are active rotating mechanisms, an external driving device can be used as a power source for the flip rollers 18f. Several groups of flipping plates are arranged on the outer sides of the two groups of flip rollers 18f. The lower ends of the flipping plates are in contact with the upper end of the conveyor belt 150. The flipping plates will turn the tablet shovel to change the angle, thereby performing a multi-faceted spray coating process. At the same time, when the staff performs coating operations on tablets of different sizes, they can adjust the heights of the two groups of flip rollers 18f through the adjusting rod 18d to perform flip operations on tablets of different sizes.

[0035] The drying component 200 includes a vertical adjustment frame 20a and a base 20g. The base 20g is installed on the upper end of the rear side frame 110 and is fixed thereto by bolts. A set of vertical adjustment frames 20a for adjusting the height position of the drying box 20d is provided on the upper end of the base 20g.

[0036] A group of mounting plates 20b are provided on the left side of the vertical adjustment frame 20a, a group of inner positioning frames 20c for connecting and positioning with the drying box 20d are provided on the left side of the mounting plate 20b, and a group of drying boxes 20d for drying the coated tablets are provided on the left side of the inner positioning frame 20c.

[0037] The adjustment component 210 includes a connecting frame 21a and a limiting plate 21d. A clamping frame 21b for clamping and connecting the telescopic rod 21c is provided at the upper end of the connecting frame 21a. A telescopic rod 21c for adjusting the position of the limiting plate 21d is provided on the rear side of the clamping frame 21b. A limiting plate 21d for keeping the tablet in position adjustment at the upper end of the conveyor belt 150 is provided on the rear side of the telescopic rod 21c. The limiting plate 21d can be used to keep the tablet in position adjustment at the upper end of the conveyor belt 150, thereby keeping the tablet material uniformly arranged and guided between the limiting plate 21d and the baffle plate 160 to ensure accurate coating of the tablet material.

[0038] See also Figure 1-Figure 5As the second embodiment of the present invention: Based on the description in the first embodiment, further, after the tablet material coating process is completed, a group of dust-blocking nets are provided at the upper end of the drying box 20d to prevent air dust from entering, a ring-shaped electric heating wire is provided inside the drying box 20d, and two groups of air ducts 20e are provided on the front side of the drying box 20d for conducting dry air. A plurality of drying tubes 20f are provided at the lower end of each group of air ducts 20e for drying the coated tablets. The coated tablets can be dried by using the dust-blocking net, and the air dust can be prevented from entering by using the dust-blocking net. The coated tablets can be dried by using the drying tube 20f, so as to solidify the tablet coating layer and prepare for the next coating spraying. When the tablet coating is completed, the tablet positions are unevenly distributed. The staff can use the telescopic rod 21c to adjust the distance between the limit plate 21d and the baffle plate 160 to keep several groups of tablets arranged between the baffle plate 160 and the limit plate 21d, so as to ensure the drying efficiency of the coated tablets. For coating layers of different materials, the staff does not need to stop the machine to replace the equipment, thereby speeding up the overall work efficiency of the tablet coating process of different materials.

[0039] A group of motors 120 for providing running power to the conveyor belt 150 is provided on the right side of the supporting foot 100, a group of conveyor belts 150 for guiding and moving tablet materials are provided on the upper end of the motor 120, a group of baffle plates 160 for limiting the movement of tablet materials are provided on the rear side of the upper end of the conveyor belt 150, and a group of positioning frames 170 for limiting the position of several groups of spray frames 180 are provided on the front side of the baffle plates 160.

[0040] Several groups of spray racks 180 are staggered and are all independent mechanisms. Several groups of spray racks 180 can transmit the same coating material by using external sealing tubes. Two groups of adjustment components 210 for limiting and guiding the moving range of tablet materials are provided on the upper end of the front side frame 110. A group of rangefinders 190 for measuring and positioning the front side of the baffle plate 160 is provided on the right side of each group of adjustment components 210.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous coating system for tablet production, comprising: Support legs (100), spray racks (180), drying components (200) and adjustment components (210), characterized in that: the support legs (100) are provided with two groups, and a group of side frames (110) for supporting the two groups of support frames (130) are provided on the inner sides of the front and rear ends of the two groups of support legs (100); a group of drying components (200) for coating and drying tablet materials are provided on the upper ends of the rear side side side frames (110); two groups of adjustment components (210) for limiting and guiding the moving range of tablet materials are provided on the upper ends of the front side side side frames (110); and a plurality of spray racks (180) for coating the outer surfaces of tablet materials are provided on the left and right sides of the drying components (200); The spraying frame (180) comprises a support seat (18a), a turning roller (18f) and a spraying pipe (18g); a group of extension rods (18b) for adjusting the distance between the adjustment rods (18d) are provided on the rear side of the upper end of the support seat (18a); a group of connecting seats (18c) for connecting the adjustment rods (18d) are provided on the outer side of the rear end of the extension rods (18b); A group of adjusting rods (18d) for adjusting the height positions of the support block (18e) and the two groups of turning rollers (18f) are provided at the lower end of the connecting seat (18c); the adjusting rods (18d) are an electric telescopic column; a group of supporting blocks (18e) for connecting with the two groups of turning rollers (18f) are provided at the lower end of the adjusting rods (18d); and two groups of turning rollers (18f) for turning tablet materials are provided on the right side of the supporting blocks (18e).

2. A continuous coating system for tablet production according to claim 1, characterized in that: The two groups of flip rollers (18f) are active rotating mechanisms, and an external driving device can be used as a power source for the flip rollers (18f). Several groups of flip plates are arranged on the outside of the two groups of flip rollers (18f). The lower end of the flip plate is in contact with the upper end of the conveyor belt (150). The interior of the support seat (18a) is a hollow structure. A group of injection ports are arranged on the upper front end of the support seat (18a). The interior of the injection port is connected to the interior of the support seat (18a). The interior of the support seat (18a) is connected to the spray pipe (18g) via a group of self-priming pumps.

3. A continuous coating system for tablet production according to claim 2, characterized in that: The spray pipe (18g) includes a pipe body (g1) and a discharge port (g3). The top of the spray pipe (18g) is a sealed structure pipe body (g1). The lower end of the pipe body (g1) is provided with a plurality of groups of discharge ports (g3) for spraying coating materials. Each group of the discharge ports (g3) is provided with a group of internal stirring heads (g2) for preventing internal blockage. The internal stirring heads (g2) are conical rotary blades and are arranged in the middle position inside the discharge port (g3).

4. A continuous coating system for tablet production according to claim 1, characterized in that: The drying component (200) comprises a vertical adjustment frame (20a), a drying box (20d), a drying pipe (20f) and a base (20g); the base (20g) is mounted on the upper end of the rear side frame (110) and is connected and fixed thereto by bolts; the upper end of the base (20g) is provided with a set of vertical adjustment frames (20a) for adjusting the height position of the drying box (20d).

5. A continuous coating system for tablet production according to claim 4, characterized in that: A group of mounting plates (20b) are arranged on the left side of the vertical adjustment frame (20a); a group of inner positioning frames (20c) for connecting and positioning with a drying box (20d) are arranged on the left side of the mounting plate (20b); a group of drying boxes (20d) for drying coated tablets are arranged on the left side of the inner positioning frame (20c); a group of dust-blocking nets for preventing air dust from entering are arranged at the upper end of the drying box (20d); an annular electric heating wire is arranged inside the drying box (20d); two groups of air ducts (20e) for conducting dry air are arranged on the front side of the drying box (20d); and a plurality of groups of drying tubes (20f) for drying coated tablets are arranged at the lower end of each group of air ducts (20e).

6. A continuous coating system for tablet production according to claim 1, characterized in that: The adjustment assembly (210) comprises a connecting frame (21a) and a limiting plate (21d); a group of clamping frames (21b) for clamping and connecting the telescopic rod (21c) are provided at the upper end of the connecting frame (21a); ​​a group of telescopic rods (21c) for adjusting the position of the limiting plate (21d) are provided at the rear side of the clamping frame (21b); and a group of limiting plates (21d) for keeping the tablet in an adjusted position at the upper end of the conveyor belt (150) are provided at the rear side of the telescopic rod (21c).

7. A continuous coating system for tablet production according to claim 1, characterized in that: A motor (120) for providing running power to a conveyor belt (150) is disposed on the right side of the support foot (100); a conveyor belt (150) for guiding and moving tablet materials is disposed on the upper end of the motor (120); a material baffle plate (160) for limiting the movement of tablet materials is disposed on the rear side of the upper end of the conveyor belt (150); and a positioning frame (170) for limiting the position of a plurality of spray frames (180) is disposed on the front side of the material baffle plate (160).

8. A continuous coating system for tablet production according to claim 7, characterized in that: Several groups of spray racks (180) are staggered and are all independent mechanisms. Several groups of spray racks (180) can be used to transfer the same coating material by using external sealing tubes. A group of distance meters (190) for measuring the distance and positioning the front side of the baffle plate (160) is provided on the right side of each group of adjustment components (210).

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