Tabletting device for converting nitroglycerin liquid into tablets

Abstract

The utility model relates to the technical field of pharmacy, in particular to a nitroglycerin liquid conversion tablet tabletting device which comprises a device frame, a driving motor is fixedly installed on the device frame, a reciprocating assembly is arranged at the output end of the driving motor and fixedly connected with a pressing plate, and a mold table is arranged below the pressing plate. The mold table is fixedly connected with a rotating assembly, the mold table is rotationally connected with a rotating disc, and a filtering plate is arranged below the rotating disc; automatic feeding and continuous tabletting of nitroglycerin liquid raw materials are achieved, the driving motor drives the first rotating shaft to rotate, then the pressing plate reciprocates up and down through the meshing effect of the incomplete gear and the rack, continuous tabletting is conducted on particles on the mold table, the working efficiency is improved, and the production cost is reduced. And the complexity of manual operation is reduced, so that the tabletting process is more automatic and continuous, the production efficiency is greatly improved, the dependence of manual operation is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical technology, specifically to a nitroglycerin liquid tablet compression device. Background Technology

[0002] Nitroglycerin liquid-to-tablet conversion refers to the process and result of converting nitroglycerin from a liquid form to a tablet form. Nitroglycerin, also known as glyceryl trinitrate, is an important cardiovascular drug, mainly used to treat heart diseases such as angina pectoris and congestive heart failure. As a vasodilator, it can dilate blood vessels, especially veins, thereby reducing the amount of blood returning to the heart and the heart's oxygen demand, while increasing blood supply to the heart and relieving symptoms such as chest pain.

[0003] A search revealed a utility model patent with Chinese patent number CN215551234U, which discloses a drug tableting device. The device features a matching middle and lower mold that can be detachably installed at the output ends of multiple hydraulic cylinders, facilitating disassembly and cleaning and avoiding contamination caused by drug residues.

[0004] However, in actual use, the above-mentioned device requires manual addition of the powder to the mold cavity, and then the powder is compressed into tablets by a hydraulic cylinder. It cannot achieve automatic feeding, tableting and discharging, resulting in low processing efficiency. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a nitroglycerin liquid tablet compression device, which effectively solves the problems of low processing efficiency caused by difficulties in automatic feeding, continuous tableting, and automatic unloading in existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a nitroglycerin liquid tablet compression device, including a device frame, a drive motor fixedly mounted on the device frame, a reciprocating assembly at the output end of the drive motor, a pressing plate fixedly connected to the reciprocating assembly, a mold platform below the pressing plate, a rotating assembly fixedly connected to the mold platform, a rotating disk rotatably connected to the mold platform, a filter plate below the rotating disk, a collection box and a receiving box below the filter plate, and a transmission assembly between the reciprocating assembly and the rotating assembly.

[0008] Furthermore, the device frame is fixedly connected to a reaction tank, and a feeding pipe is provided at the lower end of the reaction tank. The end of the feeding pipe away from the reaction tank is attached to the upper surface of the mold table.

[0009] Further, the reciprocating assembly comprises a first rotating shaft fixedly installed on the output shaft of the driving motor, an incomplete gear is fixedly connected to the first rotating shaft, a rack is in meshing connection with the incomplete gear, a pressing plate is arranged at the lower end of the rack, and the rack is in sliding connection with the device frame.

[0010] Further, the transmission assembly comprises a first transmission wheel sleeved on the surface of the first rotating shaft, a belt is in transmission connection with the first transmission wheel, a second transmission wheel is in transmission connection with the belt, and a rotating assembly is fixedly connected to the second transmission wheel.

[0011] Further, the rotating assembly comprises a connecting shaft fixedly installed on the second transmission wheel, an incomplete bevel gear is fixedly connected to the connecting shaft, a complete bevel gear is in meshing connection with the incomplete bevel gear, the complete bevel gear is rotatably installed at the lower end of the rotating disc, and the complete bevel gear is sleeved on the surface of the second rotating shaft.

[0012] Further, one end of the second rotating shaft penetrates through the rotating disc and is fixedly connected with a mold table, and the other end of the second rotating shaft is rotatably installed on the device frame.

[0013] Further, the surface of the rotating disc is provided with a sliding groove and a discharging hole, the lower end of the rotating disc is fixedly connected with one end of a supporting leg, and the other end of the supporting leg is fixedly installed on the device frame.

[0014] Further, the surface of the mold table is provided with a plurality of mold grooves, the lower end of the mold table is provided with a sliding block, and the sliding block is in sliding connection with the sliding groove.

[0015] Beneficial effects

[0016] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0017] Firstly, the utility model realizes automatic feeding and continuous tabletting of nitroglycerin liquid raw materials, the driving motor drives the first rotating shaft to rotate, then the pressing plate is reciprocated up and down through the meshing effect of the incomplete gear and the rack, the granules on the mold table are continuously tabletted, the work efficiency is improved, the manual operation is simplified, the tabletting process is more automatic and continuous, the production efficiency is greatly improved, the dependence on manual operation is reduced, and the production cost is reduced.

[0018] Secondly, the device adopts full-automatic mechanical operation, effectively avoids the pollution risk possibly caused by manual contact with the tablets, the whole process from raw material mixing, discharging to tabletting and discharging is carried out in a clean environment, and the hygiene and safety of the medicine are ensured.

[0019] III. The design of the aggregate box enables the trace amount of particles on the surface of the tablets to be recycled and reused, further improving the utilization rate of raw materials and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A structural schematic diagram of a nitroglycerin liquid tablet converting device according to the present application is shown in the figure.

[0022] Figure 2 A first structural schematic diagram of the present application is shown in the figure.

[0023] Figure 3 A second structural schematic diagram of the present application is shown in the figure.

[0024] Figure 4 An exploded schematic diagram of a mold table of the present application is shown in the figure.

[0025] Figure 5 A Figure 3 An enlarged schematic diagram of structure A in the figure.

[0026] The drawings are as follows: 1, device frame; 2, driving motor; 4, reaction bucket; 5, discharging pipe; 6, mold table; 7, rotating disc; 8, filter plate; 9, aggregate box; 10, medicine collecting box; 11, supporting leg; 12, mold groove; 13, sliding block; 14, sliding slot; 15, second rotating shaft; 16, discharging hole; 17, rack; 18, incomplete gear; 19, first transmission wheel; 20, belt; 21, second transmission wheel; 22, connecting shaft; 23, pressing plate; 24, first rotating shaft; 25, incomplete bevel gear; 26, complete bevel gear. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] The present application will be further described below in combination with the embodiments.

[0029] A nitroglycerin liquid tablet transfer tabletting device, referring to the attached Figures 1-5 , including device frame 1, device frame 1 fixedly installed with driving motor 2, the output end of driving motor 2 is provided with reciprocating assembly, reciprocating assembly is fixedly connected with pressing plate 23, the lower part of pressing plate 23 is provided with mold table 6, mold table 6 is fixedly connected with rotating assembly, mold table 6 is rotatably connected with rotating disc 7, the lower part of rotating disc 7 is provided with filter plate 8, the lower part of filter plate 8 is provided with material collecting box 9 and medicine collecting box 10, transmission assembly is arranged between reciprocating assembly and rotating assembly.

[0030] Device frame 1 is fixedly connected with reaction bucket 4, the lower end of reaction bucket 4 is provided with discharging pipe 5, the end of discharging pipe 5 away from reaction bucket 4 is attached to the upper surface of mold table 6.

[0031] Reciprocating assembly includes first rotating shaft 24 fixedly installed on the output shaft of driving motor 2, first rotating shaft 24 is fixedly connected with incomplete gear 18, incomplete gear 18 is meshingly connected with rack 17, the lower end of rack 17 is provided with pressing plate 23, rack 17 is slidingly connected with device frame 1.

[0032] Transmission assembly includes first transmission wheel 19 sleeved on the surface of first rotating shaft 24, first transmission wheel 19 is drivingly connected with belt 20, belt 20 is drivingly connected with second transmission wheel 21, second transmission wheel 21 is fixedly connected with rotating assembly.

[0033] Rotating assembly includes connecting shaft 22 fixedly installed on second transmission wheel 21, connecting shaft 22 is fixedly connected with incomplete bevel gear 25, incomplete bevel gear 25 is meshingly connected with complete bevel gear 26, complete bevel gear 26 is rotatably installed at the lower end of rotating disc 7, complete bevel gear 26 is sleeved on the surface of second rotating shaft 15.

[0034] One end of second rotating shaft 15 penetrates through rotating disc 7 and is fixedly connected with mold table 6, the other end of second rotating shaft 15 is rotatably installed on device frame 1.

[0035] The surface of rotating disc 7 is provided with sliding slot 14 and discharging hole 16, the lower end of rotating disc 7 is fixedly connected with one end of supporting leg 11, the other end of supporting leg 11 is fixedly installed on device frame 1.

[0036] The surface of mold table 6 is provided with multiple groups of mold grooves 12, the lower end of mold table 6 is provided with sliding block 13, sliding block 13 is slidingly connected with sliding slot 14.

[0037] Working principle: The worker carries the device to the designated place, then adds the prepared nitroglycerin raw material and related auxiliary reagents into the reaction bucket 4 for mixing, so that the liquid raw material is converted into granules. When the reaction in the reaction bucket 4 is completed, the discharge pipe 5 is opened, and the granules fall onto the upper surface of the mold table 6 along the discharge pipe 5. Since the lower end of the discharge pipe 5 perfectly fits the upper surface of the mold table 6, the granules will not splash outside. At the same time, the driving motor 2 is opened, and the driving motor 2 in the open state drives the output shaft to rotate, thereby driving the first rotating shaft 24 to rotate. The rotation of the first rotating shaft 24 drives the incomplete gear 18 to rotate on the device frame 1. The incomplete gear 18 drives the rack 17 to move up and down on the device frame 1 through meshing, thereby driving the pressing plate 23 fixedly installed on the rack 17 to move synchronously and reciprocally, thereby realizing continuous tabletting of the granules and improving work efficiency. At the same time of the rotation of the first rotating shaft 24, the first rotating shaft 24 drives the first transmission wheel 19 sleeved on the surface of the first rotating shaft 24 to rotate synchronously. The first transmission wheel 19 drives the second transmission wheel 21 to rotate through the belt 20. The rotation of the second transmission wheel 21 drives the connecting shaft 22 to rotate. The rotation of the connecting shaft 22 drives the incomplete bevel gear 25 fixedly installed on the connecting shaft 22 to rotate. The incomplete bevel gear 25 drives the complete bevel gear 26 to rotate intermittently through meshing with the complete bevel gear 26. The complete bevel gear 26 drives the second rotating shaft 15 to rotate on the device frame 1, and drives the slider 13 at the lower end of the mold table 6 to rotate on the sliding groove 14 formed on the surface of the rotating disc 7. When the meshing relationship between the incomplete bevel gear 25 and the complete bevel gear 26 is released, a group of mold grooves 12 formed on the surface of the mold table 6 maintain coaxial relationship with the discharge pipe 5. The diameter of the discharge pipe 5 is the same as the diameter of the mold groove 12. During the whole process from the time when the mold groove 12 just contacts the discharge pipe 5 to the time when the mold groove 12 completely moves away from the discharge pipe 5, the granules will freely fall due to gravity. Under the rotation of the mold table 6, the granules will be scraped flat by the lower end of the discharge pipe 5, thereby reducing the cracking phenomenon in the subsequent tabletting and medicine discharging processes. When the meshing relationship between the incomplete bevel gear 25 and the complete bevel gear 26 is released again, the group of mold grooves 12 full of granules are located directly below the pressing plate 23, thereby enabling the pressing plate 23 to effectively tablet the granules. With the simultaneous operation of the reciprocating assembly and the rotating assembly, when the pressing plate 23 rises to the upper surface of the mold table 6, the incomplete bevel gear 25 and the complete bevel gear 26 are re-meshed to drive the mold table 6 to continue rotating. A group of mold grooves 12 after tabletting establish coaxial relationship with the discharge hole 16 formed on the rotating disc 7. At this time, the meshing relationship between the incomplete bevel gear 25 and the complete bevel gear 26 is released. The tablets will fall along the discharge hole 16 and fall on the filter plate 8 due to their own gravity. The trace of granular substances on the surface of the tablets will pass through the filter plate 8 and enter the collection box 9, which will be recycled by the collection box 9, thereby improving the utilization rate. Finally, the tablets smoothly enter the medicine collection box 10 and are collected.

[0038] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for tabletting liquid nitroglycerin, comprising a device frame (1), characterised in that, The device frame (1) is fixedly installed with a driving motor (2), the output end of the driving motor (2) is provided with a reciprocating assembly, the reciprocating assembly is fixedly connected with a pressing plate (23), the lower side of the pressing plate (23) is provided with a mold table (6), the mold table (6) is fixedly connected with a rotating assembly, the mold table (6) is rotatably connected with a rotating disc (7), the lower side of the rotating disc (7) is provided with a filter plate (8), the lower side of the filter plate (8) is provided with a material collecting box (9) and a medicine collecting box (10), and the reciprocating assembly and the rotating assembly are provided with a transmission assembly.

2. The nitroglycerin liquid to tablet press device of claim 1, wherein, The device frame (1) is fixedly connected with a reaction bucket (4), the lower end of the reaction bucket (4) is provided with a discharging pipe (5), and the end of the discharging pipe (5) away from the reaction bucket (4) is attached to the upper surface of the mold table (6).

3. The nitroglycerin liquid to tablet press device of claim 1, wherein, The reciprocating assembly comprises a first rotating shaft (24) fixedly installed on the output shaft of the driving motor (2), the first rotating shaft (24) is fixedly connected with an incomplete gear (18), the incomplete gear (18) is meshingly connected with a rack (17), the lower end of the rack (17) is provided with a pressing plate (23), and the rack (17) is slidingly connected with the device frame (1).

4. The nitroglycerin liquid to tablet press device of claim 1, wherein, The transmission assembly comprises a first transmission wheel (19) sleeved on the surface of the first rotating shaft (24), the first transmission wheel (19) is drivingly connected with a belt (20), the belt (20) is drivingly connected with a second transmission wheel (21), and the second transmission wheel (21) is fixedly connected with the rotating assembly.

5. The nitroglycerin liquid to tablet press device of claim 1, wherein, The rotating assembly comprises a connecting shaft (22) fixedly installed on the second transmission wheel (21), the connecting shaft (22) is fixedly connected with an incomplete bevel gear (25), the incomplete bevel gear (25) is meshingly connected with a complete bevel gear (26), the complete bevel gear (26) is rotatably installed at the lower end of the rotating disc (7), and the complete bevel gear (26) is sleeved on the surface of a second rotating shaft (15).

6. A nitroglycerin liquid to tablet press device as defined in claim 5, wherein, One end of the second rotating shaft (15) penetrates through the rotating disc (7) and is fixedly connected with the mold table (6), and the other end of the second rotating shaft (15) is rotatably installed on the device frame (1).

7. The nitroglycerin liquid to tablet press device of claim 1, wherein, The surface of the rotating disc (7) is provided with a sliding groove (14) and a discharging hole (16), one end of a supporting leg (11) is fixedly connected to the lower end of the rotating disc (7), and the other end of the supporting leg (11) is fixedly installed on the device frame (1).

8. The nitroglycerin liquid to tablet press device of claim 1, wherein, A plurality of mold grooves (12) are formed in the surface of the mold table (6), and the lower end of the mold table (6) is provided with a sliding block (13) slidingly connected with the sliding groove (14).

Images