Coating device for tablets

Abstract

The utility model discloses a coating device for tablets and tablets, which comprises a supporting mechanism, a reciprocating rotating mechanism mounted on the supporting mechanism and a spraying mechanism for spraying, the supporting mechanism comprises a rotating shaft support, a roller support is arranged on one side of the rotating shaft support, and a shell is arranged on the other side of the rotating shaft support. The reciprocating rotating mechanism comprises a motor fixed to the upper side of the machine shell, a rotating disc is installed at the output end of the motor, an eccentric shaft is arranged on the rotating disc, and a sector gear is slidably connected to the eccentric shaft. The rotary table is driven by the motor, so that the sector gear swings left and right to promote the sliding rack to reciprocate, clockwise rotation and anticlockwise rotation of the rotating shaft are switched, the roller is driven to rotate, tablets are fully stirred by the arc-shaped stirring plate arranged in the roller, and the tablets can be fully covered with medicaments sprayed by the atomizing nozzle; and the coating of the tablets is conveniently and efficiently realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tablet production, in particular to a coating device for pharmaceutical tablets. Background Art

[0002] The purposes of coating pharmaceutical tablets are to cover up the bad smell of tablets; to protect against moisture, light, and isolate air to increase the stability of drugs; to control the release site of drugs; to control the release rate of drugs; and to separate drugs with incompatibility. After coating, the tablet preparation has a bright color, which can not only prevent the oxidation and deterioration of the tablet chip, but also cover up the unpleasant taste of the tablet chip, and can also slow down the dissolution process in the human gastrointestinal tract. In the production process of existing pharmaceutical tablets, through the settings of a medicine bin and a drum, an atomized medicament is sprayed when the drum rotates to achieve the purpose of coating the tablets. However, during the coating process, the drum only rotates in one direction, which easily causes the tablets to adhere and accumulate, and it is difficult to evenly spray the coating agent on the tablets. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a coating device for pharmaceutical tablets in order to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A coating device for pharmaceutical tablets includes a support mechanism, a reciprocating rotation mechanism installed on the support mechanism, and a spraying mechanism for spraying. The support mechanism includes a rotating shaft support seat. On one side of the rotating shaft support seat, there is a machine shell, and on the other side of the rotating shaft support seat, there is a drum support seat. The reciprocating rotation mechanism includes a motor fixed on the upper side of the machine shell. The output end of the motor is equipped with a turntable. An eccentric shaft is arranged on the turntable. A sector gear is slidably connected to the eccentric shaft. A chute for the sliding of the eccentric shaft is opened on the upper side of the sector gear. A limit bolt penetrates through the lower side of the chute. A sliding rack is meshed below the sector gear. One end of the sliding rack is welded with a screw rod. One end of the screw rod is equipped with a nut sleeve. A rotating shaft is fixed on the outer side of the nut sleeve. The rotating shaft is rotatably connected to the rotating shaft support seat. A drum is welded on one side of the rotating shaft. The drum is rotatably connected to the drum support seat. A delivery pipe is rotatably arranged on one side of the drum. One end of the delivery pipe is connected to a pump pressure box.

[0006] Further setting: A hatch door is hinged on one side of the drum. Stirring plates arranged at intervals are arranged inside the drum. The stirring plates are arc-shaped plates.

[0007] Further setting: The spraying mechanism further includes a rotating joint arranged outside the hatch door, and an atomizing nozzle installed inside the hatch door. The delivery pipe is rotatably connected to the rotating joint.

[0008] Further settings: An opening for the reciprocating movement of the sliding rack is provided on the casing. A limiting shaft for fixing is provided on the sliding rack, and a sliding rail is provided on the inner wall of the casing. The limiting shaft is slidably connected to the sliding rail.

[0009] Further settings: A pump body and a medicine storage bin are provided inside the pump pressure box.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The motor drives the turntable. The eccentric shaft provided on the turntable is slidably connected to the chute on the sector gear. Through the rotation of the turntable, while the eccentric shaft moves along the chute, it drives the sector gear to swing left and right, prompting the sliding rack to reciprocate, causing the screw to cooperate to drive the nut sleeve to rotate. The nut sleeve is fixed to the rotating shaft, thereby realizing the switching between the clockwise rotation and the counterclockwise rotation of the rotating shaft and driving the roller to rotate. The arc-shaped stirring plate provided inside the roller continuously stirs the tablets, enabling the medicament sprayed by the atomizing nozzle to fully cover the tablets, and conveniently and efficiently realizing the coating of the medicine tablets. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 is an axonometric view of a coating device for medicine tablets according to the present utility model;

[0013] Figure 2 is a sectional view of a coating device for medicine tablets according to the present utility model;

[0014] Figure 3 is a partial schematic view of the sliding rack of a coating device for medicine tablets according to the present utility model;

[0015] Figure 4 is an enlarged schematic view of the hatch door of a coating device for medicine tablets according to the present utility model;

[0016] Figure 5 is a schematic view of the sliding rail of a coating device for medicine tablets according to the present utility model.

[0017] The description of the reference numerals is as follows:

[0018] 101, Rotating shaft support; 102, Roller support; 103, Machine shell; 201, Pump pressure box; 202, Delivery pipe; 203, Atomizing nozzle; 204, Rotary joint; 301, Roller; 302, Stirring plate; 303, Bin door; 400, Screw; 401, Nut sleeve; 402, Rotating shaft; 403, Sliding rack; 404, Sector gear; 405, Turntable; 406, Motor; 407, Limit shaft; 408, Slide rail; 409, Limit bolt. Detailed implementation manners

[0019] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0021] The present invention will be further described below with reference to the drawings:

[0022] As Figures 1 - 5 shown, a coating device for pharmaceutical tablets includes a support mechanism, a reciprocating rotation mechanism installed on the support mechanism, and a spraying mechanism for spraying.

[0023] In this embodiment: The support mechanism includes a rotating shaft support 101. A roller support 102 is arranged on one side of the rotating shaft support 101, and a machine shell 103 is arranged on the other side of the rotating shaft support 101. The support mechanism enables the overall stable operation.

[0024] In this embodiment: The reciprocating rotation mechanism includes a motor 406 fixed to the upper side of the machine housing 103. The output end of the motor 406 is provided with a turntable 405. An eccentric shaft is arranged on the turntable 405. A sector gear 404 is slidably connected to the eccentric shaft. A chute for the sliding of the eccentric shaft is provided on the upper side of the sector gear 404. A limit bolt 409 is passed through the lower side of the chute. A sliding rack 403 is engaged below the sector gear 404. One end of the sliding rack 403 is welded with a screw rod 400. One end of the screw rod 400 is provided with a nut sleeve 401. A rotating shaft 402 is fixed to the outer side of the nut sleeve 401. The rotating shaft 402 is rotatably connected to a rotating shaft support 101. A roller 301 is welded to one side of the rotating shaft 402. The roller 301 is rotatably connected to a roller support 102. A bin door 303 is hinged to one side of the roller 301. Stirring plates 302 arranged at intervals are provided inside the roller 301. The stirring plates 302 are arc-shaped plates. An opening for the reciprocating movement of the sliding rack 403 is provided on the machine housing 103. A limit shaft 407 for fixing is arranged on the sliding rack 403. A slide rail 408 is provided on the inner wall of the machine housing 103. The limit shaft 407 is slidably connected to the slide rail 408.

[0025] The motor 406 drives the turntable 405. The eccentric shaft arranged on the turntable 405 is slidably connected to the chute on the sector gear 404. Through the rotation of the turntable 405, while the eccentric shaft moves along the chute, it drives the sector gear 404 to swing left and right, prompting the sliding rack 403 to reciprocate. The screw rod 400 welded to one end of the sliding rack 403 drives the nut sleeve 401 to rotate. The nut sleeve 401 is fixed to the rotating shaft 402. The rotating shaft 402 is welded to the roller 301. As the screw rod 400 is inserted into and withdrawn from the nut sleeve 401, the rotating shaft 402 respectively switches between clockwise rotation and counterclockwise rotation, and simultaneously drives the roller 301 to rotate synchronously. The stirring plates 302 arranged inside the roller 301 are arc-shaped, fully stirring the tablets.

[0026] In this embodiment: The spraying mechanism includes a rotating joint 204 arranged outside the bin door 303, and also includes an atomizing nozzle 203 installed inside the bin door 303. A delivery pipe 202 is rotatably connected to one side of the roller 301. One end of the delivery pipe 202 is connected to a pump pressure box 201. A pump body and a medicine storage bin are arranged inside the pump pressure box 201. The pump body can pump the coating agent and is communicated with the delivery pipe 202. The delivery pipe 202 is rotatably connected to the rotating joint 204. The coating agent is sprayed out through the atomizing nozzle 203, so that it fully covers the tablets, conveniently and efficiently realizing the coating of the medicine tablets.

[0027] Working principle and usage process of the utility model: The turntable 405 is driven by the motor 406. The eccentric shaft provided on the turntable 405 is slidably connected to the chute on the sector gear 404. With the rotation of the turntable 405, while the eccentric shaft moves along the chute, it drives the sector gear 404 to swing left and right, prompting the sliding rack 403 to reciprocate. The screw 400 cooperates to drive the nut sleeve 401 to rotate. The nut sleeve 401 is fixed to the rotating shaft 402, and the rotating shaft 402 drives the roller 301 to rotate. As the screw 400 is inserted into and withdrawn from the nut sleeve 401, the rotating shaft 402 respectively switches between clockwise rotation and counterclockwise rotation. The stirring plate 302 provided inside the roller 301 is arc-shaped, which fully stirs the tablets. The coating agent in the pump pressure box 201 is pumped into the atomizing nozzle 203 through the delivery pipe 202 and sprayed, so that it fully covers the tablets, conveniently and efficiently realizing the coating of the medicine tablets.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A tablet coating device, comprising a supporting mechanism, characterized in that: The invention also comprises a reciprocating rotating mechanism installed on the supporting mechanism, and a spraying mechanism for spraying, wherein the supporting mechanism comprises a rotating shaft support (101), a roller support (102) is arranged on one side of the rotating shaft support (101), and a housing (103) is arranged on the other side of the rotating shaft support (101); the reciprocating rotating mechanism comprises a motor (406) fixed on the upper side of the housing (103), a rotating disk (405) is arranged on the output end of the motor (406), an eccentric shaft is arranged on the rotating disk (405), a sector gear (404) is slidably connected to the eccentric shaft, a sliding groove for sliding the eccentric shaft is provided on the upper side of the sector gear (404), and a limit stop is penetrated on the lower side of the sliding groove. Bolt (409), a sliding rack (403) is meshed below the sector gear (404), a screw rod (400) is welded to one end of the sliding rack (403), a nut sleeve (401) is installed to one end of the screw rod (400), a rotating shaft (402) is fixed to the outside of the nut sleeve (401), the rotating shaft (402) and the rotating shaft support (101) are rotatably connected, a roller (301) is welded to one side of the rotating shaft (402), the roller (301) and the roller support (102) are rotatably connected, a delivery pipe (202) is rotatably connected to one side of the roller (301), and one end of the delivery pipe (202) is connected to a pump pressure box (201).

2. A tablet coating device according to claim 1, characterized in that: A door (303) is hingedly connected to one side of the drum (301), and stirring plates (302) arranged at intervals are arranged inside the drum (301), and the stirring plates (302) are arc-shaped plates.

3. A tablet coating device according to claim 2, characterized in that: The spraying mechanism comprises a rotating joint (204) arranged outside the chamber door (303), the delivery pipe (202) and the rotating joint (204) are rotatably connected, and also comprises an atomizing nozzle (203) installed inside the chamber door (303).

4. A tablet coating device according to claim 1, characterized in that: The housing (103) is provided with an opening for the reciprocating motion of the sliding rack (403); the sliding rack (403) is connected with a limit shaft (407) for fixing; the inner wall of the housing (103) is provided with a slide rail (408); the limit shaft (407) and the slide rail (408) are slidably connected.

5. The tablet coating device according to claim 1, characterized in that: The pump box (201) is provided with a pump body and a medicine storage bin inside.

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