High-power stirring and feeding mechanism for tablet press

Abstract

The utility model relates to the technical field of tablet presses, in particular to a high-power stirring and feeding mechanism for a tablet press, which comprises a storage cavity, a stirring mechanism arranged at the front end in the storage cavity and a rotation driving mechanism for driving the stirring mechanism to rotate, the stirring mechanism comprises a stirring shaft vertically arranged at the front end in the storage cavity and a plurality of stirring blades fixed at the bottom end of the stirring shaft; the rotary driving mechanism comprises a first belt pulley fixed at the top end of the stirring shaft, a second belt pulley mounted at the rear end of the material storage cavity through a mounting plate, a belt for connecting the first belt pulley and the second belt pulley, and a motor for driving the second belt pulley to rotate. The motor is installed at the rear end of the material storage cavity, the size of the front end of the material storage cavity is reduced during feeding, raw materials can be conveniently fed between the middle mold and the upper mold for feeding, meanwhile, the high-power motor can be selectively installed, and the stirring and mixing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of tablet presses, in particular to a high-power stirring and feeding mechanism for a tablet press. Background Art

[0002] Tablet presses are mainly used in the research of tablet technology in the pharmaceutical industry. Tablet presses are automatic continuous production equipment that presses granular materials into round, special-shaped, and sheet-shaped products with a diameter not exceeding 13mm, and with text, symbols, and graphics. With the development of market demand, the application scope of tablet presses is becoming wider and wider. It is no longer simply limited to pressing Chinese and Western medicine tablets, but can also widely press health foods, veterinary tablets, chemical tablets, food tablets, etc.

[0003] Existing tablet presses generally include an upper die, a lower die and a middle die. In order to prevent the powder raw materials from clumping or uneven mixing, a stirring mechanism is generally provided in the feeding device to stir and mix the powder raw materials before feeding them into the molding cavity of the middle die. For example, in the Chinese Patent Literature Library, application number 202420591554.2 discloses a feeding mechanism for a tablet press with uniform mixing. However, due to the small size of some tablet presses, it is impossible to feed the hopper between the upper die and the middle die by directly installing a motor on the top of the hopper. At the same time, due to the small size, a high-power motor cannot be installed, which may lead to uneven mixing. Summary of the Invention

[0004] The purpose of the utility model is to provide a high-power stirring and feeding mechanism for a tablet press to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-power stirring and feeding mechanism for a tablet press, comprising a storage chamber, a stirring mechanism arranged at the front end of the storage chamber, and a rotary drive mechanism for driving the stirring mechanism to rotate, the stirring mechanism comprising a stirring shaft vertically arranged at the front end of the storage chamber and a plurality of stirring blades fixed at the bottom end of the stirring shaft, and the top end of the stirring shaft extends to the outside of the storage chamber, the rotary drive mechanism comprising a first pulley fixed at the top end of the stirring shaft, a second pulley installed at the rear end of the storage chamber through a mounting plate, a belt connecting the first pulley and the second pulley, and a motor driving the second pulley to rotate.

[0006] Furthermore, a feeding port is provided on one side of the bottom end of the storage cavity, and the feeding port is located directly below the stirring mechanism.

[0007] Furthermore, a feed port is provided on one side of the top end of the storage cavity, and a material guide plate is provided inside the storage cavity below the feed port, and the material guide plate is tilted downward toward the side close to the stirring mechanism.

[0008] Furthermore, the feed port is located between the first pulley and the second pulley.

[0009] Furthermore, the feed port is a funnel-shaped structure with a size gradually decreasing from top to bottom.

[0010] Furthermore, it also includes a support base fixed on one side of the top of the middle mold, the material storage cavity is horizontally slidably set on the top of the support base through a linear drive mechanism, and the size of the discharge port is larger than the size of the middle mold forming cavity.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the tablet press uses a high-power stirring and feeding mechanism by setting a first pulley, a second pulley, a mounting plate, a belt and a motor, and the motor is installed at the rear end of the storage chamber. When feeding, the volume of the front end of the storage chamber is reduced, which facilitates the feeding of the raw materials between the middle mold and the upper mold for loading. At the same time, a high-power motor can be installed to achieve a better stirring and mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model in an assembled state.

[0015] In the figure: 1. Storage chamber; 101. Feeding port; 102. Material guide plate; 2. Feeding port; 3. Stirring mechanism; 301. Stirring shaft; 302. Stirring blade; 4. Rotary drive mechanism; 401. First pulley; 402. Second pulley; 403. Mounting plate; 404. Belt; 405. Motor; 5. Support base; 6. Middle mold; 7. Upper mold. DETAILED DESCRIPTION

[0016] 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. In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" can explicitly or implicitly include at least one of the features. For the purpose of the description and claims of the present invention and the above-mentioned drawings, the terms "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0018] The specific structure of the tablet press in the present invention is based on the existing technology, and mainly includes a middle die 6, an upper die 7 and a lower die respectively arranged at the upper and lower ends of the middle die 6. The "front end" involved in the present invention refers to the end close to the middle die 6, and the "distal end" refers to the end away from the middle die 6.

[0019] See also Figure 1-3 The utility model provides an embodiment: a high-power stirring and feeding mechanism for a tablet press, comprising a storage chamber 1, a stirring mechanism 3 arranged at the front end of the storage chamber 1, and a rotary drive mechanism 4 for driving the stirring mechanism 3 to rotate, the stirring mechanism 3 comprising a stirring shaft 301 vertically mounted at the front end of the storage chamber 1 through a bearing and a plurality of stirring blades 302 fixed at the bottom end of the stirring shaft 301, and the top end of the stirring shaft 301 extends to the outside of the storage chamber 1, the rotary drive mechanism 4 comprises a first pulley 401 fixed at the top end of the stirring shaft 301, a second pulley 402 mounted at the rear end of the storage chamber 1 through a mounting plate 403, and a connection between the first pulley 401 and the second pulley 402. 02's belt 404 and the motor 405 that drives the second pulley 402 to rotate. Specifically, the mounting plate 403 is horizontally fixed at the rear end of the storage chamber 1, and the motor 405 is fixed at the top of the mounting plate 403, and its output end extends to the bottom of the mounting plate 403 and is fixedly connected to the second pulley 402. The motor 405 drives the second pulley 402 to rotate, and then drives the first pulley 401 and the stirring mechanism 3 to rotate to stir the raw materials. Installing the motor 405 at the rear end of the storage chamber 1 can reduce the volume of the front end of the storage chamber 1. When the distance between the middle mold 6 and the upper mold 7 is small, it is convenient to feed the materials. At the same time, a high-power motor 405 can also be selected to achieve a better stirring effect.

[0020] Specifically, a discharge port 101 is provided on one side of the bottom end of the storage chamber 1 , and the discharge port 101 is located directly below the stirring mechanism 3 , so that the raw materials can be discharged directly after stirring.

[0021] A feed port 2 is provided on one side of the top of the storage chamber 1. The feed port 2 is specifically a funnel-shaped structure with a size gradually decreasing from top to bottom, and the feed port 2 is located between the first pulley 401 and the second pulley 402. A guide plate 102 is provided inside the storage chamber 1 below the feed port 2. The guide plate 102 is tilted downward toward the side close to the stirring mechanism 3, so that the raw materials added to the storage chamber 1 from the feed port 2 can slide to the side close to the stirring mechanism 3 for stirring.

[0022] Further, refer to the attached Figure 3 The high-power stirring and feeding mechanism for the tablet press also includes a support base 5 fixed to one side of the top of the middle mold 6. The storage cavity 1 is horizontally slidably set at the top of the support base 5 by a linear drive mechanism (not shown in the figure). The support base 5 is penetrated by a through hole that is adapted to the molding cavity of the middle mold 6. The bottom end of the discharge port 101 is tightly fitted with the top of the support base 5 to avoid leakage. The size of the discharge port 101 is larger than the size of the molding cavity of the middle mold 6. The linear drive mechanism can be any one of an oil cylinder and an air cylinder. When loading, the linear drive mechanism pushes the storage cavity 1 to move at the top of the support base 5 to the side close to the middle mold 6, so that the discharge port 101 is aligned with the molding cavity of the middle mold 6. After the raw material is added to the molding cavity, the linear drive mechanism drives the storage cavity 1 to reset, so that the upper mold 7 and the middle mold 6 are closed for extrusion.

[0023] Working principle: During assembly, the support base 5 is installed on one side of the top of the middle mold 6, and the storage chamber 1 is horizontally slidably set on the top of the support base 5 through a linear drive mechanism. The raw materials of the tablet press are added to the inside of the storage chamber 1 through the feed port 2, and slide to the side close to the stirring mechanism 3 through the guide plate 102. The stirring mechanism 3 is driven to rotate by the rotary drive mechanism 4 to stir the raw materials. When loading, the linear drive mechanism is extended to push the storage chamber 1 to the side close to the molding cavity of the middle mold 6 until the discharge port 101 is located at the top of the molding cavity of the middle mold 6, so that the stirred raw materials can fall into the molding cavity. Later, the storage chamber 1 is driven to reset, and the upper mold 7 and the lower mold are moved to the side close to the middle mold 6 for mold closing and extrusion molding.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high-power stirring and feeding mechanism for a tablet press, comprising a material storage chamber (1), a stirring mechanism (3) arranged at the front end of the interior of the material storage chamber (1), and a rotary drive mechanism (4) for driving the stirring mechanism (3) to rotate, wherein the stirring mechanism (3) comprises a stirring shaft (301) vertically arranged at the front end of the interior of the material storage chamber (1) and a plurality of stirring blades (302) fixed to the bottom end of the stirring shaft (301), and the top end of the stirring shaft (301) extends to the outside of the material storage chamber (1), characterized in that: The rotary drive mechanism (4) comprises a first pulley (401) fixed to the top end of the stirring shaft (301), a second pulley (402) mounted at the rear end of the storage chamber (1) via a mounting plate (403), a belt (404) connecting the first pulley (401) and the second pulley (402), and a motor (405) for driving the second pulley (402) to rotate.

2. The high-power stirring and feeding mechanism for a tablet press according to claim 1, characterized in that: A discharge port (101) is provided on one side of the bottom end of the storage chamber (1), and the discharge port (101) is located directly below the stirring mechanism (3).

3. The high-power stirring and feeding mechanism for a tablet press according to claim 1, characterized in that: A feed port (2) is provided on one side of the top end of the material storage chamber (1), and a material guide plate (102) is provided inside the material storage chamber (1) below the feed port (2), wherein the material guide plate (102) is tilted downwardly toward a side close to the stirring mechanism (3).

4. The high-power stirring and feeding mechanism for a tablet press according to claim 3, characterized in that: The feed port (2) is located between the first pulley (401) and the second pulley (402).

5. The high-power stirring and feeding mechanism for a tablet press according to claim 3, characterized in that: The feed port (2) is a funnel-shaped structure with a size gradually decreasing from top to bottom.

6. The high-power stirring and feeding mechanism for a tablet press according to claim 2, characterized in that: It also includes a support base (5) fixed to one side of the top end of the middle mold (6), the storage cavity (1) is horizontally slidably arranged on the top end of the support base (5) through a linear drive mechanism, and the size of the discharge port (101) is larger than the size of the molding cavity of the middle mold (6).

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