Medicinal dextrin premixing device

Abstract

A medicinal dextrin premixing device belongs to the technical field of medicinal dextrin premixing and comprises a premixing tank, a mounting cavity and a mixing cavity are arranged in the premixing tank, a stirring mechanism main body is mounted in the mixing cavity, the mounting cavity is communicated with the mixing cavity, and the mixing cavity is communicated with the mounting cavity. A feeding hopper communicated with the mounting cavity is fixedly mounted on the upper surface of the premixing tank, a material blocking cloth bag is fixedly mounted on the lower surface of the feeding hopper, a screen drum is fixedly connected to the end, away from the feeding hopper, of the material blocking cloth bag, and the screen drum is vertically and slidably hoisted in the mounting cavity; the rotary drum can be driven to rotate through the transmission structure by utilizing the rotating rod in the rotating process, so that the cleaning brush on the L-shaped frame is driven to clean the screen holes of the screen drum, and the phenomenon that the blanking efficiency is influenced due to the fact that the screen drum is easily blocked in the using process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medicinal dextrin premixing, and in particular relates to a medicinal dextrin premixing device. Background Art

[0002] Medicinal dextrin can be used as a film-forming agent for drug coating, and is used to prepare sustained-release tablets, controlled-release tablets, and enteric-coated tablets, etc. Dextrin coating can prolong drug release time, reduce drug irritation, improve taste, and increase drug stability. During production, dextrin needs to be premixed with other pharmaceutical raw materials by stirring with a premixing device.

[0003] After searching, the Chinese authorized patent in the relevant field, the patent publication number is: CN220460535U, the patent name is: a medicinal dextrin premixing device, which can use the first connecting rod to drive the screen drum to slide horizontally to accelerate the material screening efficiency. During the screening process, materials of the same size as the screen holes of the screen drum are easily blocked in the screen holes and are not easy to clean. After long-term use, it will still affect the feeding efficiency. For this reason, another medicinal dextrin premixing device is provided to solve the above technical problems. Utility Model Content

[0004] In view of the fact that the medicinal dextrin premixing device in the prior art does not have a screen drum cleaning mechanism, the screen drum after long-term use is prone to clogging, which affects the feeding efficiency. The utility model provides a medicinal dextrin premixing device. During the pre-crushing of the raw materials, the rotating rod during the rotation process can be used to drive the rotating drum to rotate through the transmission structure, thereby driving the cleaning brush on the L-shaped frame to clean the screen drum. This prevents the screen drum from being easily blocked during use, which affects the feeding efficiency. This effectively solves the problem that the screen drum after long-term use is prone to clogging, which affects the feeding efficiency. The specific technical solution is as follows:

[0005] A medicinal dextrin premixing device comprises a premixing tank, wherein a mounting chamber and a mixing chamber are arranged in the premixing tank, a stirring mechanism body is installed in the mixing chamber, the mounting chamber and the mixing chamber are communicated with each other, a feed hopper connected to the mounting chamber is fixedly installed on the upper surface of the premixing tank, a material blocking bag is fixedly installed on the lower surface of the feed hopper, a screen drum is fixedly connected to one end of the material blocking bag away from the feed hopper, and the screen drum is vertically slidably hoisted in the mounting chamber;

[0006] An inverted T-shaped hanging column is fixedly installed on the lower surface of the screen drum, an L-shaped hanger is fixedly installed on the lower surface of the inverted T-shaped hanging column, a crushing motor is fixedly installed on the hanger, and a rotating rod is fixedly connected to the output end of the crushing motor.

[0007] A rotating drum is rotatably mounted on the outer surface of the inverted T-shaped suspension column, a transmission structure is provided between the rotating drum and the rotating rod, the transmission structure is used to drive the rotating drum to rotate, an L-shaped frame is fixedly mounted on the outer surface of the rotating drum, a cleaning brush is fixedly mounted on one side of the L-shaped frame close to the rotating drum, and the bristles of the cleaning brush are in contact with the sieve holes of the sieve drum.

[0008] In the above technical solution, the rotating rod passes through the inverted T-shaped suspension column and is rotatably installed in the screen cylinder, and a plurality of crushing cutter discs are fixedly installed on the outer surface of the rotating rod;

[0009] In the above technical solution, the transmission structure includes a rotating shaft, a transmission gear, an inner gear ring and a driving gear, the rotating shaft is rotatably arranged on the lower surface of the inverted T-shaped suspension column, the transmission gear is sleeved on the outer surface of the rotating shaft, the inner gear ring is fixedly installed on the inner side wall of the rotating drum, and the inner gear ring and the transmission gear are meshed and connected, the driving gear is sleeved on the outer surface of the rotating rod, and the driving gear and the transmission gear are meshed and connected;

[0010] In the above technical solution, two fixing plates are symmetrically fixedly installed on the outer surface of the screen drum, and springs and telescopic rods are fixedly installed between the upper surface of the fixing plates and the installation cavity, and the telescopic rods are located on the inner side of the corresponding springs;

[0011] In the above technical solution, an arc-shaped portion is provided at the top end of the L-shaped frame, a blocking rod is fixedly installed in the installation cavity, and the blocking rod is located on the path where the arc-shaped portion rotates around the rotating rod as the axis.

[0012] Compared with the prior art, the utility model of a medicinal dextrin premixing device has the following beneficial effects:

[0013] 1. In the process of pre-crushing the raw materials, the utility model can utilize the rotating rod in the rotating process to drive the rotating drum to rotate through the transmission structure, thereby driving the cleaning brush on the L-shaped frame to clean the sieve holes of the sieve drum, thereby avoiding the sieve drum from being easily blocked during use and affecting the feeding efficiency.

[0014] 2. The utility model provides a baffle, an arc-shaped portion, a telescopic rod and a spring. During the cleaning process of the sieve holes of the sieve drum, the arc-shaped portion can drive the sieve drum to slide down after contacting the baffle. When the arc-shaped portion is separated from the baffle, the sieve drum can move up and reset under the action of the spring. This process can cause the sieve drum to vibrate up and down, thereby facilitating the rapid discharge of raw materials from the sieve drum and further improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] Figure 3 for Figure 2 A magnified view of the local structure at point a.

[0018] Figure 4 for Figure 2 Enlarged view of the local structure at point b.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the telescopic rod of the utility model.

[0020] Figure 1-5 Among them: 1. premixing tank; 11. installation chamber; 111. feeding hopper; 112. material blocking bag; 12. mixing chamber; 121. stirring mechanism body; 13. blocking rod; 2. screen drum; 21. inverted T-shaped hanging column; 22. hanger; 23. crushing motor; 24. rotating rod; 241. crushing blade; 3. rotating drum; 31. L-shaped frame; 311. arc-shaped part; 32. cleaning brush; 4. transmission structure; 41. rotating shaft; 411. transmission gear; 42. inner gear ring; 43. driving gear; 5. fixing plate; 51. spring; 52. telescopic rod. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0023] A medicinal dextrin premixing device comprises a premixing tank 1, wherein the premixing tank 1 is provided with an installation chamber 11 and a mixing chamber 12, wherein a stirring mechanism main body 121 is installed in the mixing chamber 12, wherein the installation chamber 11 and the mixing chamber 12 are connected to each other, wherein a feed hopper 111 connected to the installation chamber 11 is fixedly installed on the upper surface of the premixing tank 1, wherein a material blocking bag 112 is fixedly installed on the lower surface of the feed hopper 111 (the length of the material blocking bag 112 needs to be greater than the distance between the feed hopper 111 and the screen cylinder 2 to ensure that the screen cylinder 2 can slide up and down freely), wherein the end of the material blocking bag 112 away from the feed hopper 111 is fixedly connected to the screen cylinder 2, and the screen cylinder 2 slides vertically Hoisted in the installation cavity 11, an inverted T-shaped hanging column 21 is fixedly installed on the lower surface of the screen drum 2, an L-shaped hanger 22 is fixedly installed on the lower surface of the inverted T-shaped hanging column 21, a crushing motor 23 is fixedly installed on the hanger 22, and a rotating rod 24 is fixedly connected to the output end of the crushing motor 23. A rotating drum 3 is rotatably installed on the outer surface of the inverted T-shaped hanging column 21, and a transmission structure 4 is arranged between the rotating drum 3 and the rotating rod 24. The transmission structure 4 is used to drive the rotating drum 3 to rotate, and an L-shaped frame 31 is fixedly installed on the outer surface of the rotating drum 3. A cleaning brush 32 is fixedly installed on the side of the L-shaped frame 31 close to the rotating drum 3, and the bristles of the cleaning brush 32 are in contact with the sieve holes of the screen drum 2;

[0024] It should be noted that the transmission structure 4 includes a rotating shaft 41, a transmission gear 411, an inner gear ring 42 and a driving gear 43. The rotating shaft 41 is rotatably arranged on the lower surface of the inverted T-shaped suspension column 21, the transmission gear 411 is sleeved on the outer surface of the rotating shaft 41, the inner gear ring 42 is fixedly installed on the inner side wall of the rotating drum 3, and the inner gear ring 42 and the transmission gear 411 are meshed and connected, the driving gear 43 is sleeved on the outer surface of the rotating rod 24, and the driving gear 43 and the transmission gear 411 are meshed and connected, the rotating rod 24 passes through the inverted T-shaped suspension column 21 and is rotatably installed in the screen drum 2, and a plurality of crushing discs 241 are fixedly installed on the outer surface of the rotating rod 24;

[0025] When in use, the raw materials to be premixed are put into the feed hopper 111, and the raw materials enter the screen drum 2 under the action of the material blocking cloth bag 112. At this time, the crushing motor 23 is started to drive the rotating rod 24 to rotate, and the rotating rod 24 drives the crushing knife disc 241 to rotate to pre-crush the raw materials in the screen drum 2. The qualified raw materials after crushing are sprinkled from the sieve holes of the screen drum 2 and fall into the mixing chamber 12 for mixing by the stirring mechanism main body 121. During the rotation process, the rotating rod 24 can also drive the transmission gear 411 to rotate through the active gear 43, and the transmission gear 411 drives the inner gear ring 42 to rotate, so as to drive the rotating drum 3 to rotate by the inner gear ring 42. When the rotating drum 3 rotates, it can drive the L-shaped frame 31 and the cleaning brush 32 to rotate. At this time, the bristles of the cleaning brush 32 clean along the outer surface of the screen drum 2, clean the sieve holes of the screen drum 2, and avoid blockage and affect the discharge of materials. Compared with the prior art, the device can clean the screen drum 2 while pre-crushing the raw materials, and can effectively ensure the discharge efficiency of the crushed raw materials.

[0026] It is worth noting that in order to further improve the efficiency of the screen drum 2, combined with Figure 2 and Figure 4 As shown, two fixing plates 5 are symmetrically fixedly installed on the outer surface of the screen drum 2, and springs 51 and telescopic rods 52 are fixedly installed between the upper surface of the fixing plates 5 and the installation cavity 11. The telescopic rods 52 are located inside the corresponding springs 51. Figure 2 , Figure 3 and Figure 4 As shown, an arc-shaped portion 311 is provided at the top of the L-shaped frame 31, and a baffle 13 is fixedly installed in the installation cavity 11. The baffle 13 is located on the path where the arc-shaped portion 311 rotates with the rotating rod 24 as the axis. When the L-shaped frame 31 rotates, the arc-shaped portion 311 at the top thereof is released from the baffle 13, and with the help of its special structure, the screen drum 2 can be driven to slide down, thereby breaking away from the contact with the baffle 13. After breaking away, the screen drum 2 is vertically moved upward and reset under the action of the spring 51 and the telescopic rod 52. The up and down movement can cause the screen drum 2 to vibrate. When the rotating drum 3 continues to rotate, the screen drum 2 can continue to vibrate, thereby facilitating the rapid discharge of raw materials from the screen drum 2, thereby further improving the material discharge efficiency.

Claims

1. A medicinal dextrin premixing device, characterized in that: The invention comprises a premixing tank (1), wherein a mounting chamber (11) and a mixing chamber (12) are arranged in the premixing tank (1), a stirring mechanism body (121) is installed in the mixing chamber (12), a feed hopper (111) connected to the mounting chamber (11) is fixedly installed on the upper surface of the premixing tank (1), a material blocking bag (112) is fixedly installed on the lower surface of the feed hopper (111), a screen drum (2) is fixedly connected to one end of the material blocking bag (112) away from the feed hopper (111), and the screen drum (2) is vertically slidably hoisted in the mounting chamber (11); An inverted T-shaped suspension column (21) is fixedly mounted on the lower surface of the screen drum (2), an L-shaped hanger (22) is fixedly mounted on the lower surface of the inverted T-shaped suspension column (21), a crushing motor (23) is fixedly mounted on the hanger (22), and a rotating rod (24) is fixedly connected to the output end of the crushing motor (23); A rotating drum (3) is rotatably mounted on the outer surface of the inverted T-shaped suspension column (21); a transmission structure (4) is provided between the rotating drum (3) and the rotating rod (24); an L-shaped frame (31) is fixedly mounted on the outer surface of the rotating drum (3); and a cleaning brush (32) is fixedly mounted on a side of the L-shaped frame (31) close to the rotating drum (3).

2. A pharmaceutical dextrin premixing device according to claim 1, characterized in that: The rotating rod (24) passes through the inverted T-shaped suspension column (21) and is rotatably mounted in the screen drum (2), and a plurality of crushing blade discs (241) are fixedly mounted on the outer surface of the rotating rod (24).

3. A pharmaceutical dextrin premixing device according to claim 2, characterized in that: The transmission structure (4) comprises a rotating shaft (41), a transmission gear (411), an inner gear ring (42) and a driving gear (43); The rotating shaft (41) is rotatably arranged on the lower surface of the inverted T-shaped suspension column (21); the transmission gear (411) is sleeved on the outer surface of the rotating shaft (41); the inner gear ring (42) is fixedly mounted on the inner side wall of the rotating drum (3); the inner gear ring (42) and the transmission gear (411) are meshingly connected; the driving gear (43) is sleeved on the outer surface of the rotating rod (24); the driving gear (43) and the transmission gear (411) are meshingly connected.

4. A pharmaceutical dextrin premixing device according to claim 3, characterized in that: Two fixing plates (5) are symmetrically fixedly mounted on the outer surface of the screen drum (2); a spring (51) and a telescopic rod (52) are fixedly mounted between the upper surface of the fixing plate (5) and the mounting cavity (11); and the telescopic rod (52) is located inside the corresponding spring (51).

5. A pharmaceutical dextrin premixing device according to claim 4, characterized in that: The top end of the L-shaped frame (31) is provided with an arc-shaped portion (311), a blocking rod (13) is fixedly installed in the installation cavity (11), and the blocking rod (13) is located on a path where the arc-shaped portion (311) rotates around the rotating rod (24) as an axis.

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