Mixing granulator for tablet production

Abstract

The utility model relates to the technical field of pharmaceutical equipment, in particular to a mixing granulator for tablet production, which comprises a tablet production machine body, a feeding barrel is mounted at the top end of the tablet production machine body, a motor is fixedly connected to the top end of the feeding barrel, and a mixing mechanism is arranged in the feeding barrel; wherein the mixing mechanism comprises a first bevel gear which is fixedly connected with an output shaft of the motor; when tablet raw materials are stirred, a motor is started to drive a rotating shaft and a bidirectional reciprocating screw rod to rotate synchronously, so that the rotating shaft drives a first stirring rod and a second stirring rod to rotate to stir the raw materials, and the raw materials are stirred under the action of the bidirectional reciprocating screw rod, a first circular ring and a second circular ring; the first stirring rod and the second stirring rod are automatically deformed while stirring, so that the fixed stirring rod is prevented from running along a set route during mixing, raw materials are favorably mixed from different routes, the fluidity of the raw materials during mixing is improved, and the raw material mixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a mixing granulator for tablet production. Background Art

[0002] With the development of medical technology, drugs are becoming more and more complex and diverse. During the production process of tablets, multiple drug raw materials need to be mixed and pressed into tablets. When multiple drug raw materials are mixed and pressed, the drug powders need to be mixed in advance.

[0003] China Patent "A Tablet Mixing and Granulating Machine" Authorization Announcement No. "CN 219898042 U" This tablet mixing and granulating machine is equipped with a feed bin, stirring blades and rolling rollers. When multiple drugs need to be mixed, different drug raw materials can be conveniently placed in the feed bin through multiple feed ports, and the driving motor is used to drive the transmission rod to rotate, so that the stirring blades mix the multiple drugs, which is convenient for subsequent mixing and pressing.

[0004] In the above scheme, the stirring blade is rotated to achieve mixing of multiple drugs, but the stirring blade is fixedly installed. When the stirring blade is driven by a motor to rotate to stir and mix the drugs, the stirring blade cannot be deformed, resulting in low fluidity of the drugs during stirring and poor mixing effect.

[0005] Therefore, a mixing granulator for tablet production is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a mixing granulator for tablet production in order to solve the above-mentioned problem, which improves the problem that the stirring blades are fixedly installed and the stirring blades cannot be deformed when the stirring blades are driven by a motor to rotate to stir and mix the drugs, thereby resulting in less fluidity of the drugs during stirring and a poor mixing effect.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme. A mixing granulator for tablet production comprises: a tablet making machine body, a feed barrel is installed on the top of the tablet making machine body, a motor is fixedly connected to the top of the feed barrel, and a mixing mechanism is arranged inside the feed barrel; wherein, the mixing mechanism comprises a first bevel gear fixedly connected to the output shaft of the motor, the surface of the first bevel gear is meshingly connected with two second bevel gears, the inner wall of the feed barrel is rotatably connected with a rotating shaft, the top of the rotating shaft passes through the feed barrel and is fixedly connected to the inner wall of one of the second bevel gears, the upper end and the lower end of the surface of the rotating shaft are both slidably connected with two moving blocks, one side of the two upper moving blocks is hinged with a first stirring rod, the other end of the first stirring rod is hinged with a mounting block, one side of the two lower moving blocks is hinged with a second stirring rod, the other end of the second stirring rod is hinged with the bottom end of the mounting block, and a driving assembly is arranged inside the rotating shaft.

[0008] Preferably, the driving assembly includes a bidirectional reciprocating screw rotatably connected to the inner wall of the rotating shaft, the top end of the bidirectional reciprocating screw passes through the rotating shaft and is fixedly connected to the bottom end of another second bevel gear, the upper surface end of the bidirectional reciprocating screw is provided with a first ring, the lower surface end of the bidirectional reciprocating screw is provided with a second ring, the other side of the two upper moving blocks is slidably connected to the surface of the first ring, and the other side of the two lower moving blocks is slidably connected to the surface of the second ring. Under the action of the bidirectional reciprocating screw, the first ring and the second ring, the first stirring rod and the second stirring rod are automatically deformed while stirring, avoiding the fixed stirring rod from running along a predetermined route during mixing, facilitating mixing of raw materials from different paths, improving the fluidity of the raw materials during mixing, and improving the effect of mixing the raw materials.

[0009] Preferably, the surfaces of the first and second circular rings are both provided with annular grooves, the inner walls of the annular grooves are slidably connected to limit blocks, and one side of the limit blocks is fixedly connected to the other side of the corresponding moving block. Under the action of the annular grooves and the limit blocks, it is helpful to ensure the stability of the first and second circular rings when the rotating shaft drives the moving block and the first and second stirring rods to rotate, and avoid the first and second circular rings from rotating synchronously, thereby ensuring the stability of the device operation.

[0010] Preferably, two telescopic rods are fixedly connected to the surface of the rotating shaft, and the other ends of the telescopic rods are fixedly connected to one side of the mounting block, which is conducive to mixing the raw materials from different paths in the horizontal direction and enhances the mixing effect.

[0011] Preferably, two limiting rings are fixedly connected to the surface of the bidirectional reciprocating screw rod to prevent the first ring and the second ring from moving excessively.

[0012] Preferably, a sliding groove matching the moving block is provided on the surface of the rotating shaft, which is conducive to driving the first stirring rod and the second stirring rod to rotate synchronously through the moving block when the rotating shaft rotates.

[0013] Preferably, a protective ring is slidably connected to the surface of the rotating shaft, and the surface of the moving block is fixedly connected to the inner wall of the protective ring, which is beneficial to protecting the chute, preventing the raw material from entering the rotating shaft, and ensuring the stability of the device operation.

[0014] Preferably, the top end and the bottom end of the protective ring are both arranged to be inclined.

[0015] The beneficial effects of the utility model are:

[0016] When the tablet raw materials are stirred, the motor is started to drive the rotating shaft and the bidirectional reciprocating screw to rotate synchronously, so that the rotating shaft drives the first stirring rod and the second stirring rod to rotate to stir the raw materials. Under the action of the bidirectional reciprocating screw, the first ring and the second ring, the first stirring rod and the second stirring rod are automatically deformed while stirring, thereby avoiding the fixed stirring rod from running along a predetermined route during mixing, facilitating the mixing of raw materials from different paths, improving the fluidity of the raw materials during mixing, and improving the effect of mixing the raw materials.

[0017] Under the action of the annular groove and the limit block, it is helpful to ensure the stability of the first ring and the second ring when the rotating shaft drives the moving block and the first stirring rod and the second stirring rod to rotate, avoid the first ring and the second ring from rotating synchronously, thereby ensuring the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the feed barrel of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the hybrid mechanism of the utility model;

[0021] Figure 4 It is an exploded view of the rotating shaft and the bidirectional reciprocating screw rod of the utility model;

[0022] Figure 5 This is a schematic diagram of the filter plate structure of the utility model.

[0023] In the figure: 1, tablet making machine body; 2, feed barrel; 3, motor; 4, mixing mechanism; 401, first bevel gear; 402, second bevel gear; 403, rotating shaft; 404, moving block; 405, first stirring rod; 406, mounting block; 407, second stirring rod; 408, driving assembly; 4081, two-way reciprocating screw; 4082, first circular ring; 4083, second circular ring; 4084, telescopic rod; 4085, limiting ring; 4086, slide groove; 4087, protective ring; 4088, annular groove; 4089, limiting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When implementing: Figure 1-5 As shown, a mixing granulator for tablet production comprises: a tablet machine body 1, a feed barrel 2 is installed on the top of the tablet machine body 1, a motor 3 is fixedly connected to the top of the feed barrel 2, and a mixing mechanism 4 is arranged inside the feed barrel 2; wherein the mixing mechanism 4 comprises a first bevel gear 401 fixedly connected to the output shaft of the motor 3, two second bevel gears 402 are meshedly connected to the surface of the first bevel gear 401, a rotating shaft 403 is rotatably connected to the inner wall of the feed barrel 2, and the top of the rotating shaft 403 passes through the feed barrel 2. It is fixedly connected to the inner wall of one of the second bevel gears 402, and the upper and lower ends of the surface of the rotating shaft 403 are slidably connected with two moving blocks 404, one side of the two upper moving blocks 404 is hinged with a first stirring rod 405, and the other end of the first stirring rod 405 is hinged with a mounting block 406, and one side of the two lower moving blocks 404 is hinged with a second stirring rod 407, and the other end of the second stirring rod 407 is hinged to the bottom end of the mounting block 406, and a driving assembly 408 is arranged inside the rotating shaft 403.

[0026] The top of the feed barrel 2 is provided with a feed port. When the raw materials are mixed, the raw materials are poured into the feed barrel 2 through the feed port. The bottom end of the feed barrel 2 is connected to the tablet making machine body 1 after the material is discharged. The inner wall of the feed barrel 2 is provided with a filter plate, and the mixed raw materials enter the tablet making machine body 1 through the filter plate.

[0027] It should be noted that the tablet making machine body 1 is a relatively mature device in the prior art.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the driving assembly 408 includes a bidirectional reciprocating screw 4081 rotatably connected to the inner wall of the rotating shaft 403, the top of the bidirectional reciprocating screw 4081 passes through the rotating shaft 403 and is fixedly connected to the bottom end of another second bevel gear 402, a first ring 4082 is provided on the upper surface of the bidirectional reciprocating screw 4081, and a second ring 4083 is provided on the lower surface of the bidirectional reciprocating screw 4081, the other side of the two upper moving blocks 404 is slidably connected to the surface of the first ring 4082, and the other side of the two lower moving blocks 404 is slidably connected to the surface of the second ring 4083.

[0029] When the raw materials of the tablets are mixed, the raw materials are poured into the feed barrel 2 through the feed port, and the motor 3 is started by the controller to drive the first bevel gear 401 to rotate, thereby driving the rotating shaft 403 and the two-way reciprocating screw 4081 to rotate synchronously through the two second bevel gears 402. When the rotating shaft 403 rotates, it will drive the first stirring rod 405 and the second stirring rod 407 to rotate synchronously to stir the raw materials. The thread grooves of the first ring 4082 and the second ring 4083 connected to the two-way reciprocating screw 4081 are opposite, and the reciprocating screw is in the form of two threads with the same pitch. , the two ends of the thread groove are connected by a transition curve, and the side of the spiral groove pushes the slider placed in the spiral groove to make axial reciprocating motion through the rotation of the reciprocating screw. Therefore, when the bidirectional reciprocating screw 4081 rotates, it will drive the first ring 4082 and the second ring 4083 to approach or move away from each other, and under the action of the moving block 404, one end of the first stirring rod 405 and one end of the second stirring rod 407 will reciprocate up and down, so that the first stirring rod 405, the second stirring rod 407 and the telescopic rod 4084 are deformed when rotating.

[0030] like Figure 5 As shown, the surfaces of the first circular ring 4082 and the second circular ring 4083 are both provided with an annular groove 4088 , the inner wall of the annular groove 4088 is slidably connected to a limit block 4089 , and one side of the limit block 4089 is fixedly connected to the other side of the corresponding moving block 404 .

[0031] When the rotating shaft 403 drives the first stirring rod 405 and the second stirring rod 407 to rotate, the moving block 404 drives the limiting block 4089 to slide in the annular groove 4088 to prevent the first ring 4082 and the second ring 4083 from rotating synchronously.

[0032] like Figure 3 and Figure 4As shown, two telescopic rods 4084 are fixedly connected to the surface of the rotating shaft 403, and the other end of the telescopic rod 4084 is fixedly connected to one side of the mounting block 406. When the rotating shaft 403 rotates, the telescopic rod 4084 will be driven to rotate synchronously to stir the raw materials. The telescopic rod 4084 is composed of a cylinder and a moving rod. The inner wall of the cylinder is provided with a moving groove matching the moving rod, so that the moving rod can move. When the mounting block 406 moves horizontally, the telescopic rod 4084 will be retracted.

[0033] like Figure 4 As shown, two limiting rings 4085 are fixedly connected to the surface of the bidirectional reciprocating screw rod 4081. The limiting rings 4085 are respectively installed in the middle of the bidirectional reciprocating screw rod 4081 to limit the distance between the first ring 4082 and the second ring 4083.

[0034] like Figure 5 As shown, the surface of the rotating shaft 403 is provided with a slide groove 4086 matching the moving block 404. The number of the slide grooves 4086 matches the number of the moving blocks 404, and the surface of the moving block 404 is slidably connected to the inner wall of the slide groove 4086.

[0035] like Figure 3 and Figure 4 As shown, the surface of the rotating shaft 403 is slidably connected with a protective ring 4087, and the surface of the moving block 404 is fixedly connected to the inner wall of the protective ring 4087. The top and bottom ends of the protective ring 4087 are both arranged in an inclined shape. The position of the protective ring 4087 corresponds to the position of the slide groove 4086. When the moving block 404 moves, the protective ring 4087 is driven to move synchronously to block the slide groove 4086.

[0036] When the utility model is in use, when mixing the raw materials of tablets, the raw materials are poured into the feed barrel 2 through the feed port, and the motor 3 is started by the controller to drive the first bevel gear 401 to rotate, thereby driving the rotating shaft 403 and the two-way reciprocating screw 4081 to rotate synchronously through the two second bevel gears 402. When the rotating shaft 403 rotates, it will drive the first stirring rod 405, the second stirring rod 407 and the telescopic rod 4084 to rotate synchronously to stir the raw materials. At the same time, when the two-way reciprocating screw 4081 rotates, it will drive the first ring 4082 and the second ring 4083 to approach or move away from each other, and under the action of the moving block 404, one end of the first stirring rod 405 and one end of the second stirring rod 407 are reciprocated up and down, so that the first stirring rod 405, the second stirring rod 407 and the telescopic rod 4084 are deformed while rotating and stirring to stir and mix the raw materials. After mixing, they enter the tablet making machine body 1 through the bottom end of the feed barrel 2.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mixing granulator for tablet production, characterized in that: include: A tablet making machine body (1), a feeding barrel (2) being mounted on the top of the tablet making machine body (1), a motor (3) being fixedly connected to the top of the feeding barrel (2), and a mixing mechanism (4) being arranged inside the feeding barrel (2); The mixing mechanism (4) comprises a first bevel gear (401) fixedly connected to the output shaft of the motor (3); the surface of the first bevel gear (401) is meshingly connected to two second bevel gears (402); the inner wall of the feed barrel (2) is rotatably connected to a rotating shaft (403); the top end of the rotating shaft (403) passes through the feed barrel (2) and is fixedly connected to the inner wall of one of the second bevel gears (402); the upper end of the surface of the rotating shaft (403) is connected to the lower end of the surface Two moving blocks (404) are slidably connected to each other, one side of the two upper moving blocks (404) is hinged with a first stirring rod (405), the other end of the first stirring rod (405) is hinged with a mounting block (406), one side of the two lower moving blocks (404) is hinged with a second stirring rod (407), the other end of the second stirring rod (407) is hinged with the bottom end of the mounting block (406), and a driving assembly (408) is arranged inside the rotating shaft (403).

2. A mixing granulator for tablet production according to claim 1, characterized in that: The driving assembly (408) comprises a bidirectional reciprocating screw (4081) rotatably connected to the inner wall of the rotating shaft (403); the top end of the bidirectional reciprocating screw (4081) passes through the rotating shaft (403) and is fixedly connected to the bottom end of another second bevel gear (402); a first circular ring (4082) is arranged on the upper surface of the bidirectional reciprocating screw (4081); a second circular ring (4083) is arranged on the lower surface of the bidirectional reciprocating screw (4081); the other sides of the two upper moving blocks (404) are slidably connected to the surface of the first circular ring (4082); and the other sides of the two lower moving blocks (404) are slidably connected to the surface of the second circular ring (4083).

3. A mixing granulator for tablet production according to claim 2, characterized in that: An annular groove (4088) is provided on the surface of the first circular ring (4082) and the surface of the second circular ring (4083); the inner wall of the annular groove (4088) is slidably connected to a limit block (4089); one side of the limit block (4089) is fixedly connected to the other side of the corresponding moving block (404).

4. A mixing granulator for tablet production according to claim 1, characterized in that: Two telescopic rods (4084) are fixedly connected to the surface of the rotating shaft (403), and the other end of the telescopic rod (4084) is fixedly connected to one side of the mounting block (406).

5. A mixing granulator for tablet production according to claim 2, characterized in that: Two limiting rings (4085) are fixedly connected to the surface of the bidirectional reciprocating screw rod (4081).

6. A mixing granulator for tablet production according to claim 1, characterized in that: The surface of the rotating shaft (403) is provided with a sliding groove (4086) matching the moving block (404).

7. A mixing granulator for tablet production according to claim 1, characterized in that: A protective ring (4087) is slidably connected to the surface of the rotating shaft (403), and a surface of the moving block (404) is fixedly connected to the inner wall of the protective ring (4087).

8. A mixing granulator for tablet production according to claim 7, characterized in that: The top and bottom ends of the protective ring (4087) are both arranged to be inclined.

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