Quantitative filling equipment for granular medicine

Abstract

The quantitative filling equipment comprises a discharging mechanism, a filling hopper, a quantitative hopper and a conveying mechanism, the interior of the discharging mechanism is hollow to form a discharging cavity, a screw rod is arranged in the discharging cavity, a first motor is arranged at one end of the screw rod, a feeding port and a discharging port are formed in the two ends of the discharging cavity respectively, the filling hopper is arranged below the discharging port, and the quantitative hopper is arranged below the discharging port. A filling opening is formed in the bottom of the filling hopper; a rotating shaft rod is arranged on the surface of the measuring hopper, one end of the rotating shaft rod is movably connected with the filling hopper, a second motor is arranged at the other end of the rotating shaft rod, and a first weighing element is arranged at the bottom of the inner side of the measuring hopper; the conveying mechanism is located below the filling hopper and provided with a plurality of conveying blocks, and limiting grooves are formed in the tops of the conveying blocks. According to the utility model, the accuracy of the quantity and the weight of the granular medicine filled into the medicine bottle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a quantitative filling device for granular medicines. Background Art

[0002] After being produced by a pharmaceutical factory, medicines need to be quantitatively packaged into specified packages for patients to take conveniently. Liquid medicines are usually filled quantitatively and accurately by a metering pump. Solid medicines with larger volumes such as tablets and capsules are usually individually packaged with each medicine using aluminum foil packaging. Granular medicines with smaller volumes are usually packaged using containers such as plastic bottles and glass bottles. This is because patients usually need to take a relatively large amount of granular medicines at one time. However, granular medicines do not have the fluidity similar to that of liquids, and the size of the gaps between granular medicines is uncertain. If filled quantitatively according to volume, it is easy to cause the amount of granular medicines after filling to be inaccurate.

[0003] A Chinese patent with the publication number of CN220905381U discloses a medicine filling device, including a filling machine and a material tank. The material tank is installed on one side of the filling machine. The mounting seat is installed on the side of the filling machine close to the material tank, and the mounting seat is located at the bottom surface of the material tank. An activity cavity is opened in the mounting seat. The top of the mounting seat is provided with a feed inlet communicating with the inside of the material tank, and the bottom surface of the mounting seat is installed with a filling pipe communicating with the activity cavity. A quantitative block is rotatably installed in the activity cavity, and a quantitative cavity is opened on the quantitative block. The above-mentioned medicine filling device is provided with a quantitative block and a mixing structure. When quantitatively filling medicines, by pushing the position of the medicines in the quantitative cavity and stirring the medicines through the mixing structure to reduce the gap space between the medicines, so that the medicines try to fill the internal space of the quantitative cavity as much as possible. However, solid medicines do not have the fluidity similar to that of liquids, and the gaps between the medicines are uncertain. It is difficult to ensure that the number of medicines with the same capacity filled each time remains the same, and it is easy to cause the amount of medicines after filling to be inaccurate. Therefore, there is still room for improvement in this medicine filling device. Content of the Utility Model

[0004] In view of the technical defects existing in the background art, the utility model provides a quantitative filling device for granular medicines, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0005] A quantitative filling device for granular medicines includes a blanking mechanism, a filling hopper, a quantitative hopper, and a conveying mechanism. The inside of the blanking mechanism is hollow to form a blanking cavity. A spiral rod is arranged in the blanking cavity. One end of the spiral rod is provided with a first motor. The top of one end of the blanking cavity is provided with a feeding port, and the bottom of the other end is provided with a discharging port. The filling hopper is arranged below the discharging port. The inside of the filling hopper is hollow, and the bottom is provided with a filling port.

[0006] The metering hopper is located inside the filling hopper. A horizontally extending rotating shaft rod is provided on the surface of the metering hopper. One end of the rotating shaft rod is movably connected to the filling hopper, and a second motor fixedly connected to the filling hopper is provided at the other end. The inside of the metering hopper is hollow, and a metering hopper opening matching the discharge port is provided at the top. A first weighing element is provided at the inner bottom of the metering hopper;

[0007] The conveying mechanism is located below the filling hopper. The conveying mechanism is provided with a number of conveying blocks sequentially hinged end to end. A limiting groove is opened at the top of the conveying block.

[0008] As a further technical solution of the present invention, a transmission thread is spirally wound on the surface of the screw rod, and a gap allowing the screw rod to rotate is provided between the transmission thread and the inner wall of the blanking cavity.

[0009] As a further technical solution of the present invention, a storage hopper matching the inlet is provided at the top of the blanking mechanism. A storage hopper opening is provided at the top of the storage hopper, and the inner diameter of the storage hopper opening is larger than the inner diameter of the inlet.

[0010] As a further technical solution of the present invention, a leak-proof cover plate matching the discharge port is provided at the bottom of the blanking mechanism. An electric push rod for reciprocating the leak-proof cover plate horizontally is provided at one end of the leak-proof cover plate, and the fixed end of the electric push rod is fixedly connected to the blanking mechanism.

[0011] As a further technical solution of the present invention, the inner diameter of the metering hopper gradually increases from the metering hopper opening to the bottom, and the first weighing element completely covers the bottom of the metering hopper.

[0012] As a further technical solution of the present invention, a medicine bottle induction element is provided between the filling port and the conveying mechanism.

[0013] As a further technical solution of the present invention, a second weighing element is provided at the bottom of the limiting groove, and an indicator light is provided at the top of the conveying block.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention conveys granular medicines by rotating the screw rod, can sensitively control the timing of starting and pausing the conveying of granular medicines, improve the accuracy of the conveying amount of granular medicines. The granular medicines are accurately weighed by the first weighing element in the metering hopper for quantification, which can improve the accuracy of the quantity and weight of the granular medicines filled into the medicine bottles. After the conveying mechanism conveys the medicine bottles to the filling port, the metering hopper is rotated to fill the quantified granular medicines into the medicine bottles through the filling port, and the filling of granular medicines is realized in a pipeline manner, improving the filling efficiency of granular medicines. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of a quantitative filling device for granular medicines Figure 1 .

[0017] Figure 2 It is Figure 1 a partial schematic diagram at position A in

[0018] Figure 3 It is a structural schematic diagram of a quantitative filling device for granular medicines Figure 2 .

[0019] Figure 4 It is Figure 3 a partial schematic diagram at position B in

[0020] Among them: the blanking mechanism 1, the blanking cavity 11, the screw rod 12, the transmission thread 121, the first motor 13, the feeding port 14, the discharging port 15, the storage hopper 16, the storage hopper opening 161, the anti-leakage cover plate 17, the electric push rod 18, the filling hopper 2, the filling port 21, the metering hopper 3, the rotating shaft rod 31, the second motor 32, the metering hopper opening 33, the first weighing element 34, the conveying mechanism 4, the conveying block 41, the limiting groove 42, the second weighing element 43, the indicator light 44, the medicine canister induction element 5 Specific implementation manners

[0021] The following combines the accompanying drawings with relevant embodiments to illustrate the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the relevant necessary components involved in the present utility model should be regarded as well-known technologies in the technical field, which can be known and mastered by those skilled in the technical field

[0022] As Figures 1 - 4 shown, a quantitative filling device for granular medicines includes a blanking mechanism 1, a filling hopper 2, a metering hopper 3, and a conveying mechanism 4. The inside of the blanking mechanism 1 is hollow to form a blanking cavity 11. A screw rod 12 is arranged inside the blanking cavity 11. One end of the screw rod 12 is provided with a first motor 13. One end of the top of the blanking cavity 11 is provided with a feeding port 14 and the other end of the bottom is provided with a discharging port 15. The filling hopper 2 is arranged below the discharging port 15. The inside of the filling hopper 2 is hollow and the bottom is provided with a filling port 21; the metering hopper 3 is located inside the filling hopper 2. A horizontally extending rotating shaft rod 31 is arranged on the surface of the metering hopper 3. One end of the rotating shaft rod 31 is movably connected to the filling hopper 2 and the other end is provided with a second motor 32 fixedly connected to the filling hopper 2. The inside of the metering hopper 3 is hollow and the top is provided with a metering hopper opening 33 matching the discharging port 15. The bottom inside of the metering hopper 3 is provided with a first weighing element 34; the conveying mechanism 4 is located below the filling hopper 2. The conveying mechanism 4 is provided with a number of conveying blocks 41 sequentially hinged end to end. A limiting groove 42 is opened at the top of the conveying block 41

[0023] The utility model is used for filling solid granular medicines. Above the blanking mechanism 1, there is a conveyor belt for conveying the granular medicines produced. The medicines are conveyed to the metering hopper 3 and the filling hopper 2 through the blanking mechanism 1 and then filled into medicine bottles. The granular medicines pass through the conveyor belt and enter the blanking cavity 11 from the feeding port 14. The screw rod 12 is driven by the first motor 13 to rotate slowly. During the rotation of the screw rod 12, the granular medicines in the blanking cavity 11 will be slowly pushed towards the discharge port 15. The granular medicines moving to the discharge port 15 will fall down into the metering hopper 3. The weight of the granular medicines in the metering hopper 3 is weighed by the first weighing element 34. When the weight of the medicines in the metering hopper 3 reaches the set value, the first motor 13 pauses to make the granular medicines in the blanking cavity 11 stop moving, so that the weight of the granular medicines in the metering hopper 3 remains at the set value. At the same time, the medicine bottles for packaging the granular medicines are conveyed by the conveying mechanism 4. A number of conveying blocks 41 in the conveying mechanism 4 are connected end to end in sequence to form a structure similar to a conveyor belt. At the front end of the operation of the conveying mechanism 4, the medicine bottles are placed in the limiting grooves 42 with the openings facing upwards. When the conveying mechanism 4 operates, the medicine bottles are intermittently conveyed. When the medicine bottles are conveyed to directly below the filling port 21, the conveying mechanism 4 pauses. The second motor 32 operates and drives the rotating shaft rod 31 to rotate, so that the metering hopper 3 rotates 180°. At this time, the utility model is in the filling state. The granular medicines with the set weight in the metering hopper 3 will be poured into the filling hopper 2 and filled into the medicine bottles along the filling port 21. Then the second motor 32 drives the metering hopper 3 to reset so that the metering hopper opening 33 faces the discharge port 15. At the same time, the conveying mechanism 4 operates to convey the next medicine bottle to directly below the filling port 21. In this way, the quantitative filling of the granular medicines is completed by cycling.

[0024] It should be noted that the solid medicines are made by equipment such as precision molds, which can ensure that the weight and shape of each medicine are consistent. Therefore, after quantitative filling by weighing the granular medicines, the number of granular medicines in the medicine bottles can also be ensured to be consistent. When patients purchase the packaged granular medicines, whether the dosage of the granular medicines is determined by weight or quantity each time, the dosage accuracy of the granular medicines in the medicine bottles can also be ensured.

[0025] It should be further noted that bearings are provided at the connection between the screw rod 12 and the blanking cavity 11 and at the connection between the rotating shaft rod 31 and the filling hopper 2, which can make the screw rod 12 and the rotating shaft rod 31 rotate more smoothly; the first weighing element 34 is preferably a weighing sensor, and the weighing sensor accurately weighs the weight of the granular medicines in the metering hopper 3 through methods such as resistance strain, electromagnetic force balance, and capacitance change, so as to ensure the accuracy of the granular medicines after quantitative filling; the inner diameter of the limiting groove 42 is slightly larger than the outer diameter of the medicine bottle, so that the limiting groove 42 can limit the position of the medicine bottle through the inner wall, and the bottle mouth of the medicine bottle can be accurately aligned with the filling port 21.

[0026] In summary, the utility model transports granular drugs by rotating the screw rod 12, which can sensitively control the timing of starting and pausing the transportation of granular drugs, improve the accuracy of the transportation volume of granular drugs. The granular drugs in the metering hopper 3 are accurately weighed by the first weighing element 34 for quantification, which can improve the accuracy of the quantity and weight of the granular drugs filled into the medicine bottles. After the conveying mechanism 4 conveys the medicine bottles to the filling port 21, the metering hopper 3 is rotated to fill the quantified granular drugs into the medicine bottles through the filling port 21, and the filling of granular drugs is realized in a pipeline manner, improving the filling efficiency of granular drugs.

[0027] As Figure 1 shown, as one of the preferred embodiments of the utility model, the surface of the screw rod 12 is provided with a helically wound transmission thread 121, and there is a gap allowing the screw rod 12 to rotate between the transmission thread 121 and the inner wall of the blanking cavity 11; when the first motor 13 drives the screw rod 12 to rotate, the screw rod 12 realizes the movement of pushing the granular drugs in the blanking cavity 11 through the transmission thread 121 extending helically on the surface. Moreover, the gap between the transmission thread 121 and the inner wall of the blanking cavity 11 is much smaller than the outer diameter of the granular drugs, which can prevent the transmission thread 121 from crushing the granular drugs when the screw rod 12 rotates, ensuring the normal transportation of granular drugs by the blanking mechanism 1.

[0028] As Figures 1 - 4 shown, as one of the preferred embodiments of the utility model, a storage hopper 16 matching the feeding port 14 is provided at the top of the blanking mechanism 1. The top of the storage hopper 16 is provided with a storage hopper opening 161, and the inner diameter of the storage hopper opening 161 is larger than the inner diameter of the feeding port 14; the storage hopper 16 is used to temporarily store the granular drugs conveyed by the conveyor belt after production, preventing the granular drugs from overflowing from the feeding port 14 and falling to the ground when the production rate of the granular drugs is greater than the filling rate. The inner wall of the storage hopper 16 forms an inclined slope, and the granular drugs can smoothly slide to the feeding port 14 after entering the storage hopper 16 from the storage hopper opening 161.

[0029] As Figures 1 - 4 shown, as one of the preferred embodiments of the utility model, a leak-proof cover plate 17 matching the discharge port 15 is provided at the bottom of the blanking mechanism 1. One end of the leak-proof cover plate 17 is provided with an electric push rod 18 for reciprocating the leak-proof cover plate 17 in the horizontal direction, and the fixed end of the electric push rod 18 is fixedly connected to the blanking mechanism 1; the leak-proof cover plate 17 is fixedly connected to the movable end of the electric push rod 18. When the granular drugs in the metering hopper 3 reach the set weight, the electric push rod 18 is used to push the leak-proof cover plate 17 to move to block the discharge port 15, preventing the granular drugs in the blanking cavity 11 from continuing to fall from the discharge port 15 due to factors such as vibration after the screw rod 12 pauses rotating, thereby ensuring the accuracy of the filling volume of the granular drugs.

[0030] As Figure 1 、 2As shown in the figure, as one of the preferred embodiments of the present utility model, the inner diameter of the metering hopper 3 gradually increases from the metering hopper opening 33 to the bottom, and the first weighing element 34 completely covers the bottom of the metering hopper 3. After the metering hopper 3 adopts the above structure, the gravity of some granular drugs in the metering hopper 3 can be prevented from acting on the inner wall of the metering hopper 3, thereby improving the accuracy of the first weighing element 34 in weighing the weight of the granular drugs and ensuring the accuracy of the filling amount of the granular drugs.

[0031] As Figure 1 shown in the figure, as one of the preferred embodiments of the present utility model, a medicine bottle induction element 5 is provided between the filling port 21 and the conveying mechanism 4; the medicine bottle induction element 5 includes an infrared emitter and an infrared receiver. Since the medicine bottles are usually placed in the conveying mechanism 4 through automated equipment, it is difficult to ensure that each limiting groove 42 contains a medicine bottle. Then, it is judged whether there is a medicine bottle below the filling port 21 by identifying whether the infrared receiver receives infrared rays. When the medicine bottle induction element 5 can sense the medicine bottle, the conveying mechanism 4 will temporarily stop running to ensure that the granular drugs are smoothly filled into the medicine bottles.

[0032] As Figure 1 shown in the figure, as one of the preferred embodiments of the present utility model, a second weighing element 43 is provided at the bottom of the limiting groove 42, and an indicator light 44 is provided at the top of the conveying block 41; the second weighing element 43 is used to verify the weight of the filled medicine bottle and the granular drugs. The second weighing element 43 is preferably a weighing sensor. Since the conveying mechanism 4 will convey the same medicine bottles to the filling port 21 for filling the granular drugs, the size and weight of each medicine bottle are the same. Then, the second weighing element 43 can weigh the total weight of the medicine bottle and the granular drugs, and judge whether the weight of the granular drugs inside meets the standard according to the weight of the medicine bottle. If it does not meet the standard, the indicator light 44 in the corresponding conveying block 41 can be lit to notify the worker to verify the granular drugs in the medicine bottle, or the medicine bottle can be clamped by a manipulator or other equipment and the granular drugs inside can be poured into the storage hopper 16 for recycling, and only the medicine bottles with qualified granular drugs are packaged.

[0033] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A quantitative filling device for granular medicines, comprising a blanking mechanism (1), a filling hopper (2), a quantitative hopper (3), and a conveying mechanism (4), characterized in that, The blanking mechanism (1) is internally hollow to form a blanking cavity (11). A screw rod (12) is arranged in the blanking cavity (11). One end of the screw rod (12) is provided with a first motor (13). At the top of one end of the blanking cavity (11) there is a feeding port (14), and at the bottom of the other end there is a discharging port (15). The filling hopper (2) is arranged below the discharging port (15). The filling hopper (2) is internally hollow and has a filling port (21) at the bottom; The metering hopper (3) is located inside the filling hopper (2). A horizontally extending rotating shaft rod (31) is provided on the surface of the metering hopper (3). One end of the rotating shaft rod (31) is movably connected to the filling hopper (2), and the other end is provided with a second motor (32) fixedly connected to the filling hopper (2). The metering hopper (3) is internally hollow and has a metering hopper opening (33) at the top that matches the discharging port (15). A first weighing element (34) is arranged at the inner bottom of the metering hopper (3); The conveying mechanism (4) is located below the filling hopper (2). The conveying mechanism (4) is provided with a number of conveying blocks (41) that are sequentially hinged end to end. A limiting groove (42) is opened at the top of the conveying block (41).

2. The quantitative filling device for granular drugs according to claim 1, characterized in that, The surface of the screw rod (12) is provided with a helically wound transmission thread (121). There is a gap between the transmission thread (121) and the inner wall of the blanking cavity (11) that allows the screw rod (12) to rotate.

3. The quantitative filling device for granular drugs according to claim 1, characterized in that, A storage hopper (16) that matches the feeding port (14) is arranged at the top of the blanking mechanism (1). The storage hopper (16) has a storage hopper opening (161) at the top. The inner diameter of the storage hopper opening (161) is larger than the inner diameter of the feeding port (14).

4. The quantitative filling device for granular medicines according to claim 1, characterized in that, A leak-proof cover plate (17) that matches the discharging port (15) is arranged at the bottom of the blanking mechanism (1). One end of the leak-proof cover plate (17) is provided with an electric push rod (18) that enables the leak-proof cover plate (17) to reciprocate horizontally. The fixed end of the electric push rod (18) is fixedly connected to the blanking mechanism (1).

5. The quantitative filling device for granular medicines according to claim 1, wherein, The inner diameter of the metering hopper (3) gradually increases from the metering hopper opening (33) to the bottom. The first weighing element (34) completely covers the bottom of the metering hopper (3).

6. The quantitative filling device for granular medicines according to claim 1, characterized in that, A medicine can sensing element (5) is arranged between the filling port (21) and the conveying mechanism (4).

7. The quantitative filling device for granular medicines according to claim 1, characterized in that, A second weighing element (43) is arranged at the bottom of the limiting groove (42). An indicator light (44) is arranged at the top of the conveying block (41).

Images