Raw material feeding device for chemical synthetic raw material medicine

Abstract

The utility model discloses a chemical synthetic bulk drug raw material feeding device, which relates to the technical field of drug raw material feeding equipment, aims to solve the technical problem of low feeding precision of the current feeding device, and comprises a rectangular bottom frame, a mounting rod and a material barrel. The secondary weighing box is arranged in the rectangular bottom frame through the support and the second weighing sensor, so that when medicine raw materials are fed, a worker can control the turning plate discharging structure to work, then the raw materials in the material barrel are discharged, quantitative discharging of the raw materials can be achieved through cooperation of the first weighing sensor, one-time quantitative feeding is achieved, and the labor intensity of workers is reduced. The medicine raw materials which are quantitatively discharged for the first time can directly fall into a secondary weighing box, and then the raw materials which are quantitatively discharged for the first time are weighed under the cooperation of a second weighing sensor, so that the accuracy of the feeding amount of the raw materials for the first time is determined; and then the material pushing plate is driven by the electric hydraulic push rod to push out the raw materials in the secondary weighing box from the opening in one side for secondary feeding.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical raw material feeding equipment, and more specifically, to a feeding device for chemically synthesized pharmaceutical raw materials. Background Technology

[0002] In the production process of chemically synthesized pharmaceutical raw materials, it is necessary to quantitatively feed the raw materials. This requires the use of a feeding device, which is usually a material barrel placed on a support by a weighing sensor. Then, a spiral discharge structure or a flap discharge structure is set at the bottom of the material barrel to control the discharge of the raw materials, thereby achieving quantitative feeding of the pharmaceutical raw materials.

[0003] In existing feeding devices, the screw discharge structure or the flap discharge structure, due to inertia or time delay, still discharges a small amount of raw material after feeding stops. This often causes the feeding amount to slightly exceed the set value. However, the chemical synthesis of pharmaceutical raw materials requires very high precision in feeding. Excessive feeding can adversely affect the chemical synthesis reaction, potentially leading to incomplete reactions, increased impurity content in the product, and other problems. This seriously affects the quality and production efficiency of the chemically synthesized pharmaceutical raw materials. Therefore, we propose a feeding device for chemically synthesized pharmaceutical raw materials. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a chemical synthesis pharmaceutical raw material feeding device to solve the technical problem of low feeding accuracy of the current feeding device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a chemical synthesis pharmaceutical raw material feeding device, including a rectangular base frame, a mounting rod, and a material barrel. The material barrel is arranged on the top of the rectangular base frame via the mounting rod. A first weighing sensor is arranged between the top of the mounting rod and the material barrel. A flip cover is hinged to the top of the material barrel. A flip-plate discharge structure is arranged at the bottom outlet of the material barrel. Supports are arranged at the four corners of the bottom of the rectangular base frame. A second weighing sensor is arranged at the top of the support. A secondary weighing box is arranged on the top of the second weighing sensor. The secondary weighing box is located below the material barrel outlet. A pusher plate is slidably arranged inside the secondary weighing box. An electro-hydraulic push rod is arranged on the side of the secondary weighing box facing away from its outlet. The piston end of the electro-hydraulic push rod is connected to the pusher plate.

[0006] The pusher plate has a triangular groove facing the discharge port of the secondary weighing box, and the top of the pusher plate is inclined.

[0007] Preferably, the bottom opening of the pusher plate is closed at the top, and the side of the pusher plate facing the outlet of the secondary weighing box is higher than the side facing away from the outlet of the secondary weighing box.

[0008] Preferably, the inner wall of the secondary weighing box is provided with a sliding groove, and the pusher plate is provided with a sliding strip corresponding to the sliding groove, and the sliding strip is located in the sliding groove.

[0009] Preferably, a recess is arranged at the bottom of the secondary weighing box facing its outlet, a baffle is hinged inside the recess, the height of the baffle is the same as the height of the recess, and an elastic element is arranged on one side of the recess.

[0010] Preferably, the elastic element includes a mounting plate, with support rods arranged at both ends of the top of the mounting plate. The support rods pass through the secondary weighing box, and a spring is sleeved on the support rod. The bottom end of the spring is connected to the mounting plate, and the top end of the spring is connected to the bottom of the secondary weighing box.

[0011] Preferably, the top of the support rod is provided with rolling balls, and the rolling balls are in contact with the bottom surface of the baffle.

[0012] Preferably, the pusher plate has inclined surfaces at both ends facing the discharge port of the secondary weighing box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model incorporates a secondary weighing box within a rectangular base frame, supported by a bracket and a second weighing sensor. Therefore, when feeding pharmaceutical raw materials, personnel can control the flap discharge structure to expel the raw materials from the hopper. The first weighing sensor enables quantitative discharge of the raw materials, constituting the first quantitative feeding. The discharged raw materials fall directly into the secondary weighing box, where the second weighing sensor weighs them to determine the accuracy of the initial feeding. An electric hydraulic pusher then drives a pusher plate to push the materials from one side of the secondary weighing box for secondary feeding. If the initial feeding exceeds the predetermined amount, the excess material can be retained in the secondary weighing box during discharge. This ensures precise feeding of pharmaceutical raw materials, guaranteeing the quality of subsequent chemical synthesis and addressing the low feeding accuracy of current feeding devices. Therefore, this utility model offers the advantage of higher feeding accuracy for pharmaceutical raw materials.

[0015] 2. The pusher plate inside the secondary weighing box of this utility model has a triangular groove on its left side. The top of the pusher plate is closed and the bottom opening is closed. Moreover, the top of the pusher plate is inclined, with the left side of the top of the pusher plate being higher than the right side. Therefore, when the pusher plate moves towards the discharge port of the secondary weighing box, the raw material is gradually gathered by the triangular groove, resulting in a larger discharge port area in the initial stage, which can quickly discharge most of the raw material. As the pusher plate approaches the discharge completion stage, the discharge port area gradually decreases, effectively controlling the amount of raw material discharged. This achieves the "fast at first, slow later, and precise ending" of the discharge process. By controlling the change in the discharge port area, the problem of excessive discharge caused by an excessively large discharge port in the later stage is effectively avoided, ensuring that the excess raw material from the first feeding can remain in the secondary weighing box, further improving the feeding accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the material bucket of this utility model;

[0018] Figure 3 This is a schematic diagram showing the installation of the secondary weighing box, pusher plate, elastic element, and baffle of this utility model;

[0019] Figure 4 This is a schematic diagram of the first structure of the pusher plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the second structure of the pusher plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the secondary weighing box structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the elastic element structure of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Rectangular base frame; 2. Mounting rod; 3. First weighing sensor; 4. Material bucket; 401. Flip cover; 402. Flip-plate discharge structure; 5. Support; 6. Second weighing sensor; 7. Secondary weighing box; 701. Slide groove; 702. Countersunk opening; 8. Push plate; 801. Triangular groove; 802. Sliding bar; 803. Inclined surface; 9. Electro-hydraulic push rod; 10. Elastic element; 1001. Mounting plate; 1002. Support rod; 1003. Spring; 1004. Ball bearing; 11. Baffle. Detailed Implementation

[0025] like Figures 1 to 7As shown, this utility model relates to a chemical synthesis pharmaceutical raw material feeding device, including a rectangular base frame 1, a mounting rod 2, and a material tank 4. The material tank 4 is arranged on the top of the rectangular base frame 1 through the mounting rod 2. A first weighing sensor 3 is arranged between the top of the mounting rod 2 and the material tank 4. A flip cover 401 is hinged to the top of the material tank 4. A flip-plate discharge structure 402 is arranged at the bottom outlet of the material tank 4. Supports 5 are arranged at the four corners of the bottom of the rectangular base frame 1. A second weighing sensor 6 is arranged at the top of the support 5. A secondary weighing box 7 is arranged on the top of the second weighing sensor 6. The secondary weighing box 7 is located below the outlet of the material tank 4. A pusher plate 8 is slidably arranged inside the secondary weighing box 7. An electric hydraulic push rod 9 is arranged on the side of the secondary weighing box 7 facing away from its outlet. The piston end of the electric hydraulic push rod 9 is connected to the pusher plate 8.

[0026] When feeding pharmaceutical raw materials, personnel can control the operation of the flip-plate discharge structure 402 to discharge the raw materials from the material bucket 4. The first weighing sensor 3 can be used to achieve quantitative discharge of the raw materials, which is the first quantitative feeding. The pharmaceutical raw materials discharged in the first quantitative feeding will fall directly into the secondary weighing box 7. Then, with the help of the second weighing sensor 6, the raw materials discharged in the first quantitative feeding are weighed to determine the accuracy of the first feeding amount. Then, the electric hydraulic push rod 9 drives the push plate 8 to push the raw materials in the secondary weighing box 7 out from one side opening for secondary feeding. If the first feeding exceeds the predetermined amount, when discharging the raw materials in the secondary weighing box 7, it is only necessary to keep the excess raw materials in the secondary weighing box 7. This can achieve accurate feeding of pharmaceutical raw materials and ensure the quality of subsequent chemical synthesis of pharmaceutical raw materials.

[0027] Specifically, the inner wall of the secondary weighing box 7 is provided with a sliding groove 701, and the pusher plate 8 is provided with a sliding strip 802 corresponding to the sliding groove 701, and the sliding strip 802 is located in the sliding groove 701; the sliding groove 701 and the sliding strip 802 cooperate to realize the horizontal sliding displacement of the pusher plate 8 in the secondary weighing box 7.

[0028] In an embodiment of this utility model, a triangular groove 801 is provided on the side of the pusher plate 8 facing the outlet of the secondary weighing box 7, and the top of the pusher plate 8 is inclined; the bottom of the pusher plate 8 is open and the top is closed, and the side of the pusher plate 8 facing the outlet of the secondary weighing box 7 is higher than the side facing away from the outlet of the secondary weighing box 7.

[0029] When the pusher plate 8 moves towards the discharge port of the secondary weighing box 7, the raw material is gradually gathered by the triangular groove 801, resulting in a larger discharge port area in the initial stage, which can quickly discharge most of the raw material. As the pusher plate 8 approaches the discharge completion stage, the discharge port area gradually decreases, effectively controlling the amount of raw material discharged. This achieves a "fast at first, slow later, and precise finish" discharge process. By controlling the change in the discharge port area, the problem of excessive discharge caused by an excessively large discharge port in the later stage is effectively avoided, ensuring that the excess raw material from the first feeding can remain in the secondary weighing box 7, further improving the feeding accuracy.

[0030] In an embodiment of this utility model, a recess 702 is arranged at the bottom of the secondary weighing box 7 facing its discharge port. A baffle 11 is hinged inside the recess 702, and the height of the baffle 11 is the same as the height of the recess 702. An elastic element 10 is arranged on one side of the recess 702. The elastic element 10 includes a mounting plate 1001. Support rods 1002 are arranged at both ends of the top of the mounting plate 1001. The support rods 1002 pass through the secondary weighing box 7. A spring 1003 is sleeved on the support rods 1002. The bottom end of the spring 1003 is connected to the mounting plate 1001, and the top end of the spring 1003 is connected to the bottom of the secondary weighing box 7.

[0031] Under normal conditions, the support rod 1002 lifts one side of the baffle 11, causing the baffle 11 to tilt, thereby blocking the outlet of the secondary weighing box 7 and preventing the raw material falling into the secondary weighing box 7 from sliding out of the outlet. When the pusher plate 8 discharges the raw material from the secondary weighing box 7, the pusher plate 8 will press the baffle 11, causing the baffle 11 to be gradually pressed to a horizontal position. At this time, the baffle 11 is completely contained in the countersunk opening 702, and the spring 1003 is in a stretched state. When the pusher plate 8 disengages from the baffle 11, the spring 1003 returns to its original position, and then drives the support rod 1002 to return to its original position. At this time, the support rod 1002 will lift one side of the baffle 11 again to block it.

[0032] Specifically, a ball bearing 1004 is rolled at the top of the support rod 1002, and the ball bearing 1004 contacts the bottom surface of the baffle 11; the contact between the support rod 1002 and the baffle 11 through the ball bearing 1004 can reduce the friction between the two and make it easier to rotate in conjunction with the baffle 11.

[0033] Furthermore, the pusher plate 8 has inclined surfaces 803 arranged at both ends on the side facing the outlet of the secondary weighing box 7. The inclined surfaces 803 are easy to fit with the inclined baffle 11, and then the baffle 11 can be pressed horizontally more stably and smoothly.

[0034] Working Principle: This embodiment provides a chemical synthesis pharmaceutical raw material feeding device. First, when feeding the pharmaceutical raw material, the operator can control the operation of the flip-plate discharge structure 402 to discharge the raw material from the material bucket 4. The first weighing sensor 3 can be used to achieve quantitative discharge of the raw material, which is the first quantitative feeding. The pharmaceutical raw material discharged in the first quantitative feeding will fall directly into the secondary weighing box 7. Then, with the help of the second weighing sensor 6, the raw material discharged in the first quantitative feeding is weighed to determine the accuracy of the first feeding amount. Then, the electric hydraulic push rod 9 drives the push plate 8 to push the raw material in the secondary weighing box 7 out from one side opening for secondary feeding. If the first feeding exceeds the predetermined amount, when discharging the raw material in the secondary weighing box 7, it is only necessary to keep the excess raw material in the secondary weighing box 7. This can achieve accurate feeding of pharmaceutical raw materials and ensure the quality of subsequent chemical synthesis of pharmaceutical raw materials.

[0035] Secondly, when the pusher plate 8 moves towards the discharge port of the secondary weighing box 7, the raw material is gradually gathered by the triangular groove 801, resulting in a larger discharge port area in the initial stage, which can quickly discharge most of the raw material. As the pusher plate 8 approaches the discharge completion stage, the discharge port area gradually decreases, effectively controlling the amount of raw material discharged. This achieves the "fast first, slow later, precise ending" of the discharge process. By controlling the change in the discharge port area, the problem of excessive discharge caused by an excessively large discharge port in the later stage is effectively avoided, ensuring that the excess raw material from the first feeding can remain in the secondary weighing box 7, further improving the feeding accuracy.

[0036] Finally, under normal conditions, the support rod 1002 lifts one side of the baffle 11, causing the baffle 11 to tilt, thereby blocking the outlet of the secondary weighing box 7 and preventing the raw material falling into the secondary weighing box 7 from sliding out of the outlet. When the pusher plate 8 discharges the raw material from the secondary weighing box 7, the pusher plate 8 will press the baffle 11, causing the baffle 11 to be gradually pressed to a horizontal position. At this time, the baffle 11 is completely contained in the countersunk opening 702. At this time, the spring 1003 is in a stretched state. When the pusher plate 8 disengages from the baffle 11, the spring 1003 returns to its original position, and then drives the support rod 1002 to return to its original position. At this time, the support rod 1002 will lift one side of the baffle 11 again to block it.

[0037] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A feeding device for chemically synthesized pharmaceutical raw materials, characterized in that, The device includes a rectangular base frame (1), a mounting rod (2), and a material bucket (4). The material bucket (4) is arranged on the top of the rectangular base frame (1) via the mounting rod (2). A first weighing sensor (3) is arranged between the top of the mounting rod (2) and the material bucket (4). A flip cover (401) is hinged to the top of the material bucket (4). A flip-plate discharge structure (402) is arranged at the bottom outlet of the material bucket (4). Supports (5) are arranged at the four corners of the bottom of the rectangular base frame (1). A second weighing sensor (6) is arranged at the top of the support (5). A secondary weighing box (7) is arranged at the top of the second weighing sensor (6). The secondary weighing box (7) is located below the outlet of the material bucket (4). A pusher plate (8) is slidably arranged inside the secondary weighing box (7). An electric hydraulic push rod (9) is arranged on the side of the secondary weighing box (7) facing away from its outlet. The piston end of the electric hydraulic push rod (9) is connected to the pusher plate (8). The pusher plate (8) has a triangular groove (801) facing the discharge port of the secondary weighing box (7), and the top of the pusher plate (8) is inclined.

2. The chemical synthesis pharmaceutical raw material feeding device according to claim 1, characterized in that, The bottom opening of the pusher plate (8) is closed at the top, and the pusher plate (8) facing the discharge port of the secondary weighing box (7) is higher than the side facing away from the discharge port of the secondary weighing box (7).

3. The chemical synthesis active pharmaceutical ingredient feeding device according to claim 1, characterized in that, The inner wall of the secondary weighing box (7) is provided with a sliding groove (701), and the pusher plate (8) is provided with a sliding strip (802) corresponding to the sliding groove (701), and the sliding strip (802) is located in the sliding groove (701).

4. The chemical synthesis active pharmaceutical ingredient feeding device according to claim 1, characterized in that, The bottom of the secondary weighing box (7) is provided with a countersunk opening (702) facing its outlet. A baffle (11) is hinged inside the countersunk opening (702). The height of the baffle (11) is the same as the height of the countersunk opening (702). An elastic element (10) is provided on one side of the countersunk opening (702).

5. The chemical synthesis active pharmaceutical ingredient feeding device according to claim 4, characterized in that, The elastic element (10) includes a mounting plate (1001), with support rods (1002) arranged at both ends of the top of the mounting plate (1001). The support rods (1002) pass through the secondary weighing box (7), and a spring (1003) is sleeved on the support rods (1002). The bottom end of the spring (1003) is connected to the mounting plate (1001), and the top end of the spring (1003) is connected to the bottom of the secondary weighing box (7).

6. The chemical synthesis active pharmaceutical ingredient feeding device according to claim 5, characterized in that, The top of the support rod (1002) is provided with a rolling ball (1004), and the ball (1004) is in contact with the bottom surface of the baffle (11).

7. The chemical synthesis active pharmaceutical ingredient feeding device according to claim 1, characterized in that, The pusher plate (8) has inclined surfaces (803) arranged at both ends on the side facing the discharge port of the secondary weighing box (7).

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