Medicament mixing tank

Abstract

This invention belongs to the technical field of pharmaceutical production equipment, and particularly relates to a pharmaceutical mixing tank, comprising: a tank body with an elliptical cross-section, a feeding port at the top of the tank body, and a discharge port at the bottom of the tank body; two symmetrically arranged stirring shafts within the tank body; stirring components, with a plurality of equidistantly distributed stirring components on each of the two stirring shafts, the stirring components on the two stirring shafts being staggered; and a drive assembly, with a drive assembly for driving the stirring shafts to rotate located outside the bottom of the tank body, the drive assembly including a drive gear assembly and a drive motor; wherein the stirring assembly includes: a shaft sleeve, the shaft sleeve being fitted onto the stirring shaft and fixedly connected to the stirring shaft; blades, with a plurality of blades evenly distributed circumferentially on the shaft sleeve; and auxiliary stirring components, with a plurality of equidistantly distributed auxiliary stirring components on each blade.

Description

Technical Field

[0001] This invention belongs to the field of pharmaceutical production equipment technology, and particularly relates to a pharmaceutical mixing tank. Background Technology

[0002] Drugs are substances used to prevent, treat, and diagnose diseases. Theoretically, any chemical substance that can affect the physiological functions of organs and cellular metabolic activities falls under the category of drugs. Drugs also include preparations used for detection, such as various chemical reagents in diagnostic kits, including buffers, oxidizing or reducing agents, and primer and probe mixtures used for amplifying and detecting nucleic acids. Mixing multiple drugs is a common formulation method in drug or pharmaceutical preparation manufacturing; for example, mixing two or more powdered and liquid drugs, followed by drying, to produce the final product.

[0003] Existing drug mixing devices for pharmaceutical production mostly use motors to drive stirring blades to mix multiple drugs. However, the movement of existing stirring blades is limited, and small particles tend to clump together when powdered raw materials are added to liquid raw materials. Traditional mixing devices require a long mixing time to break up these small particles, and insufficient time can affect the mixing effect of the drugs. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a pharmaceutical mixing tank that has a simple structure and facilitates drug mixing.

[0005] In view of this, the present invention provides a pharmaceutical mixing vessel, comprising:

[0006] The tank body has an elliptical cross-section, with a feeding port at the top and a discharge port at the bottom.

[0007] The tank contains two symmetrical stirring shafts.

[0008] The stirring assembly consists of several equally spaced stirring components on both stirring shafts, with the stirring components on the two stirring shafts arranged in an alternating pattern.

[0009] The drive assembly includes a drive gear assembly and a drive motor, which are installed outside the bottom of the tank to drive the stirring shaft to rotate.

[0010] The stirring component includes:

[0011] A shaft sleeve is fitted onto the stirring shaft and fixedly connected to it.

[0012] The blades are arranged on the shaft sleeve in a circular pattern.

[0013] Auxiliary stirring components are provided on each blade, with several auxiliary stirring components distributed at equal intervals.

[0014] In the above technical solution, the blade further includes:

[0015] The upper blade section has an upward-convex arc-shaped structure;

[0016] The propeller bearing part is symmetrically arc-shaped, and the upper part of the propeller bearing part is connected to the upper propeller blade part. The cross section of the propeller bearing part is crescent-shaped and forms a crescent-shaped hollow part. The arc apex of the propeller bearing part is set towards the direction of rotation of the rotating shaft.

[0017] The lower blade section is connected to the lower part of the blade bearing section, and the lower blade section is arc-shaped with the top of the arc facing the upper blade section.

[0018] The impeller has several evenly distributed perforated sections on the receiving part, extending towards the upper and lower impeller parts. An auxiliary stirring component is also provided on the perforated sections. The impeller also includes a connecting block connected to the shaft sleeve, and the connecting block is fixedly connected to the upper impeller part, the impeller receiving part, and the lower impeller part.

[0019] In the above technical solution, the auxiliary stirring component further includes:

[0020] The outer support cylinder has a threaded portion formed on its outer wall, and an outer support edge is formed outward at one end of the outer support cylinder and an inner support edge is formed inward at the other end. The outer support cylinder is connected to the outer hole mounting portion through the threaded portion and is limited by abutting against the end face of the hole mounting portion through the support edge.

[0021] An inner sliding sleeve is coaxially arranged inside the outer support cylinder, and a limiting edge is formed on the side of the inner sliding sleeve facing the outer support edge of the outer support cylinder. The limiting edge slides with the inner wall of the outer support cylinder and is arranged opposite to the inner support edge.

[0022] An inner support spring is provided inside the outer support cylinder, and the two ends of the inner support spring abut against the limiting edge and the inner support edge.

[0023] The inner cylinder agitator is a freely rotatable inner cylinder agitator installed inside the inner sliding sleeve.

[0024] In the above technical solution, the auxiliary stirring component further includes:

[0025] An outer support spring, wherein one end of the inner sliding sleeve without a limiting edge extends out of the outer support sleeve and is fitted with an outer support spring, and a limiting ring for limiting the outer support spring is threadedly connected to the end of the inner sliding sleeve;

[0026] An end limiting component is provided at one end of the inner sliding sleeve with a limiting edge, which limits the end of the inner cylinder agitator.

[0027] An end support is provided at one end of the inner sliding sleeve and away from the limiting edge, which is the other end of the limiting inner cylinder agitator.

[0028] The end support is threadedly connected to the inner sliding sleeve and forms a closed end to block one end of the inner sliding sleeve, and a flow hole is provided on the closed end; the end limiting member is annular and threadedly connected to the inner sliding sleeve.

[0029] In the above technical solution, the inner cylinder agitator further includes:

[0030] An outer sleeve assembly is provided on one side of the inner sliding sleeve near the end limiting member;

[0031] An inner cylinder assembly is provided on one side of the inner sliding sleeve near the end support member;

[0032] The outer cylinder assembly includes:

[0033] The support cylinder has several equidistantly distributed inner arc-shaped grooves on its inner wall, and a connecting hole communicating with the inner arc-shaped grooves is provided on the outer wall of the support cylinder. A plug is provided on the connecting hole, and the support cylinder abuts against the end limiting member.

[0034] The outer inner cylinder has a stepped outer wall, including an outer stepped part and an inner stepped part with decreasing diameter. The length of the outer stepped part is equal to that of the supporting cylinder. The inner stepped part extends out of the supporting cylinder. Several outer arc-shaped grooves are provided on the outer wall of the outer stepped part, which are symmetrically arranged with the inner arc-shaped grooves. The outer arc-shaped grooves and the inner arc-shaped grooves can be combined to form a rolling groove with a circular cross section.

[0035] External support balls: Several freely rolling external support balls are provided on the rolling groove;

[0036] An outer cylinder support is provided between the outer wall of the inner stepped section and the inner wall of the inner sliding sleeve.

[0037] In the above technical solution, the outer cylinder receiving component further includes:

[0038] The inner washer has a cross-section shaped like a >, and the two sides of the inner washer have arc-shaped contact parts, and the inner washer abuts against the end face of the support cylinder and the outer stepped part.

[0039] A wear-resistant metal ring is provided on the side of the inner washer away from the outer stepped portion, with a cross-section of > and the wear-resistant metal ring abutting against the inner washer;

[0040] A rotary sealing ring is provided on the side of the wear-resistant metal ring away from the inner gasket, with a cross-section shaped like a >, and the rotary sealing ring abuts against the wear-resistant metal ring;

[0041] An outer pressure ring is provided on the side of the rotating seal ring away from the wear-resistant metal ring. The outer pressure ring is supported by metal and a protruding annular pressure block is formed on the side of the outer pressure ring facing the rotating seal ring.

[0042] The inner sliding sleeve has an annular locking block formed in the middle that abuts against the other end of the outer clamping ring; and the outer wall of the inner stepped portion abuts against the inner wall of the locking block.

[0043] In the above technical solution, the outer inner cylinder further includes:

[0044] The outer drive blade has a through hole formed in the outer inner cylinder. Several outer drive blades are formed on the side of the through hole near the outer stepped part, and the outer drive blades are fixedly connected to the inner wall of the through hole.

[0045] The inner cutting claws are formed on the side of the through hole near the inner stepped part, with several inner cutting claws evenly distributed around the circumference.

[0046] The internal cutting claw includes:

[0047] The cutting claw body extends from the outer stepped portion to the inner stepped portion and is inclined toward the middle of the through hole;

[0048] The claw body connecting block is provided on one end of the outer stepped part of the cutting claw body, and a fixing groove for the claw body connecting block is formed through the inner wall of the hole. The claw body connecting block and the fixing groove are fixed by bolts.

[0049] The cutting blades are formed on both sides of the cutting claw body, on the side away from the claw body connecting block, and on both sides of the cutting claw body, with several equally spaced cutting blades extending toward the center of the through hole.

[0050] In the above technical solution, the inner cylinder assembly further includes:

[0051] The inner support cylinder has one end abutting against the locking block and the other end abutting against the end support member; and several evenly distributed mounting grooves are formed on the outer wall of the inner support cylinder.

[0052] An inner support protrusion is formed on the outer wall of the inner support cylinder, and the inner support protrusion and the mounting groove are alternately distributed.

[0053] An inner support rolling column is provided on the inner support protrusion;

[0054] The inner ball bearings are provided in each mounting slot, and several freely rolling inner ball bearings are provided in each mounting slot.

[0055] The mounting groove has a multi-segment structure, including a bottom arc-shaped segment at the bottom and side arc-shaped segments on both sides of the bottom arc-shaped segment that connect the two sides; a cutting groove is provided on the inner support protrusion, and a support rod is mounted in the middle of the cutting groove. The inner support rolling column is rotatably fixed on the support rod, and the cross-section of the inner support rolling column is a circular arc triangle or a cylinder.

[0056] In the above technical solution, the inner cylinder assembly further includes:

[0057] The inner drive blade has a through-hole formed inside the inner support cylinder, and several inner drive blades are evenly distributed on the inner support hole in a circumferential manner.

[0058] The inner drive blade has several evenly distributed, sharp, protruding inner cutting teeth that are inclined toward the outer cylinder assembly.

[0059] The end support member has a convex conical receiving groove in the direction of the inner support cylinder, and the inner drive blade has a concave mating part that mates with the receiving groove. The end of the inner support cylinder abuts against the outer edge of the end support member and forms an arc-shaped contact rib. A gap is formed between the chamfered part of the inner drive blade and the receiving groove.

[0060] In the above technical solution, the blade further includes:

[0061] An upper splitter plate is provided on the upper part of the upper blade section, and the upper splitter plate and the upper blade section are separately configured.

[0062] Support cutting plates are provided between the upper impeller and the upper flow divider plate, and the support cutting plates have blades in the direction of rotation of the stirring shaft.

[0063] The upper splitter plate has a guide peak in the direction of the upper blade. The guide peak includes an outer arc-shaped part located away from the upper blade and extending towards the upper blade, and an inner arc-shaped part located near the upper blade and extending away from the upper blade. The outer arc-shaped part and the inner arc-shaped part are connected by an arc-shaped connecting part. A gap is formed between the inner arc-shaped part and the upper blade, and the gap decreases from the arc-shaped connecting part towards the direction away from the inner arc-shaped part.

[0064] The beneficial effects of this invention are as follows:

[0065] 1. The two stirring shafts ensure a good mixing effect in the mixing tank;

[0066] 2. The auxiliary stirring components further improve the mixing effect;

[0067] 3. The inner cylinder agitator can break up small, sticky particles, thereby improving agitation efficiency and shortening agitation time. Attached Figure Description

[0068] Figure 1 This is a schematic diagram of the structure of the present invention;

[0069] Figure 2 This is a schematic diagram of the stirring assembly in this invention;

[0070] Figure 3 This is a schematic diagram of the first cross-section of the blade in this invention;

[0071] Figure 4 yes Figure 3 A magnified view of a section at point I;

[0072] Figure 5 This is a schematic diagram of the second cross-section of the blade in this invention;

[0073] Figure 6 This is a schematic diagram of the third cross-section of the blade in this invention;

[0074] Figure 7 yes Figure 6 Schematic diagram of the cross section at point AA;

[0075] Figure 8 This is a schematic diagram of the internal cutting claw structure;

[0076] Figure 9 yes Figure 8 Enlarged view of a section at point II;

[0077] The markings in the diagram represent: 1-Tank body, 2-Agitator shaft, 3-Shaft sleeve, 4-Upper impeller, 5-Impeller bearing, 6-Lower impeller, 7-Outer support cylinder, 8-Inner support edge, 9-Inner sliding sleeve, 10-Limiting edge, 11-Inner support spring, 12-Outer support spring, 13-End limiting component, 14-End support component, 15-Support cylinder body, 16-Inner arc groove, 17-Outer inner cylinder body, 17a-Outer stepped part, 17b-Inner stepped part, 18-Outer arc groove, 19-Outer support ball bearing, 20-Inner washer, 21-Wear-resistant metal ring 22-Rotary sealing ring, 23-Outer clamping ring, 24-Clamping block, 25-Outer drive blade, 26-Inner cutting claw, 26a-Cutting claw body, 26b-Claw body connecting block, 26c-Cutting blade, 27-Inner support cylinder, 28-Inner support protrusion, 29-Inner support rolling column, 30-Inner ball, 31-Inner cutting teeth, 32-Receiving groove, 33-Arc-shaped contact rib, 34-Support cutting plate, 35-Inner drive blade, 36-Upper diverter plate, 36a-Outer arc-shaped part, 36b-Inner arc-shaped part, 37-Resettling groove, 38-Flow hole. Detailed Implementation

[0078] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0079] Example 1:

[0080] This embodiment provides a pharmaceutical mixing tank, characterized in that it includes:

[0081] Tank 1 has an elliptical cross-section, a feeding port at the top, and a discharge port at the bottom.

[0082] Stirring shaft 2: Two symmetrical stirring shafts 2 are installed inside the tank body 1;

[0083] The stirring assembly consists of several equally spaced stirring components on both stirring shafts 2, with the stirring components on the two stirring shafts 2 arranged in an alternating pattern.

[0084] The drive assembly includes a drive gear assembly and a drive motor, which are provided outside the bottom of the tank 1 to drive the stirring shaft 2 to rotate.

[0085] The stirring component includes:

[0086] Shaft sleeve 3 is sleeved on the stirring shaft 2 and fixedly connected to the stirring shaft 2;

[0087] The blades are arranged on the shaft sleeve 3 in a circular pattern.

[0088] Auxiliary stirring components are provided on each blade, with several auxiliary stirring components distributed at equal intervals.

[0089] In this embodiment, the upper part of the tank 1 is provided with an openable top cover, and the feeding port is located on the top cover. The material in the tank 1 is mixed by two stirring shafts 2, thereby ensuring a good mixing effect. A gear assembly in which the two rotating shafts rotate in the same direction can be selected, or a gear assembly in which the two rotating shafts rotate in opposite directions can be selected. The mixing tank is also equipped with a control cabinet, which contains a controller, control circuit and frequency converter. The drive motor is driven by the frequency converter after being controlled by the controller. The shaft sleeve 3 of the stirring assembly is fitted onto the rotating shaft and can be fixed by alignment with two limit nuts. The set blades can facilitate the stirring and mixing of the agent, and the set auxiliary stirring components can better improve the stirring effect. At the same time, the stirring components on the two stirring shafts 2 are staggered to better ensure the mixing effect.

[0090] Example 2:

[0091] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0092] The blades include:

[0093] Upper blade section 4 has an upwardly convex arc-shaped structure;

[0094] The propeller support part 5 is an arc shape that is symmetrical from top to bottom. The upper part of the propeller support part 5 is connected to the upper blade part 4. The cross section of the propeller support part 5 is crescent-shaped and forms a crescent-shaped hollow part. The top of the arc of the propeller support part 5 is set towards the direction of rotation of the rotating shaft.

[0095] The lower blade part 6 is connected to the lower part of the blade support part 5, and the lower blade part 6 is arc-shaped with the top of the arc facing the upper blade part 4.

[0096] The perforated mounting section has several evenly distributed perforated mounting sections on the receiving section, and the perforated mounting sections extend towards the upper blade section 4 and the lower blade section 6, and the auxiliary stirring component is disposed on the perforated mounting section. The blade also includes a connecting block connected to the shaft sleeve 3, and the connecting block is fixedly connected to the upper blade section 4, the blade receiving section 5 and the lower blade section 6.

[0097] In this embodiment, the blades are made entirely of metal. The upper blade portion 4, with its upwardly convex arc structure, increases the contact area with the mixture during rotation. This allows for the breaking up of small, adhered particles during rotation. The blade receiving portion 5 provides a good connection between the upper blade portion 4 and the lower blade portion 6. Its arc-shaped structure also improves the mixing effect. Furthermore, the lower blade portion 6, with its arc apex facing the upper blade portion 4, reduces impact on the material while maintaining a consistent contact area. The perforated mounting portion facilitates the placement of auxiliary stirring components. To ensure the structural strength of the blades, several supporting ribs can be provided between the diameters of the upper blade portion 4 and the lower blade portion 6. The supporting ribs are located on the side away from the arc apex of the blade receiving portion 5. The supporting ribs can be cylindrical and fixed by welding or other methods. Meanwhile, the cross-section of the blade receiving portion 5 is crescent-shaped, forming a crescent-shaped hollow portion. This ensures the thickness of the blade receiving portion 5 while also ensuring the structural strength of the blade receiving portion 5 itself, and improves the stability of the diameter connection between the blade receiving portion 5 and the upper blade portion 4 and the lower blade portion 6.

[0098] Example 3:

[0099] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0100] Auxiliary mixing components include:

[0101] The outer support cylinder 7 has a threaded portion formed on its outer wall, and an outer support edge is formed outward at one end of the outer support cylinder 7 and an inner support edge 8 is formed inward at the other end. The outer support cylinder 7 is connected to the outer hole mounting portion through the threaded portion and is limited by abutting against the end face of the hole mounting portion through the support edge.

[0102] An inner sliding sleeve 9 is coaxially arranged inside the outer support cylinder 7, and a limiting edge 10 is formed on the side of the inner sliding sleeve 9 facing the outer support edge of the outer support cylinder 7. The limiting edge 10 slides with the inner wall of the outer support cylinder 7 and the limiting edge 10 is arranged opposite to the inner support edge 8.

[0103] An inner support spring 11 is provided inside the outer support cylinder 7, and the two ends of the inner support spring 11 abut against the limiting edge 10 and the inner support edge 8.

[0104] The inner cylinder agitator is installed inside the inner sliding sleeve 9 and can rotate freely.

[0105] In this embodiment, the outer support cylinder 7 serves to support and connect the blades within the auxiliary stirring component, while the inner sliding sleeve 9 houses the inner stirring component. During rotation, the inner stirring component rotates through the flow of liquid, further mixing the materials to ensure a good mixing effect. The inner support spring, during high-speed rotation, causes the inner stirring component to float, i.e., the inner sliding sleeve 9 moves axially away from the rotation axis. This axial displacement integrates a certain impact force, and when stirring stops, the inner sliding sleeve 9 returns to its original position, further ensuring a good stirring effect for the auxiliary stirring component. Both the outer support cylinder 7 and the inner sliding sleeve 9 are made of metal.

[0106] Example 4:

[0107] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0108] The auxiliary mixing components also include:

[0109] An outer support spring 12 is provided, wherein an inner sliding sleeve 9 without a limiting sleeve extends out of an outer support sleeve 7 at one end of an inner sliding sleeve 9 and is fitted with an outer support spring 12, and a limiting ring with a limiting outer support spring 12 is threadedly connected to the end of the inner sliding sleeve 9.

[0110] An end limiting member 13 is provided inside the inner sliding sleeve 9 and at one end of the limiting edge 10 to limit one end of the inner cylinder stirring member;

[0111] An end support 14 is provided at one end of the inner sliding sleeve 9 and away from the limiting edge 10, which is the other end of the limiting inner cylinder agitator.

[0112] The end support 14 is threadedly connected to the inner sliding sleeve 9 and forms a closed end to block one end of the inner sliding sleeve 9, and an overflow hole 38 is provided on the closed end; the end limiting member 13 is annular and threadedly connected to the inner sliding sleeve 9.

[0113] In this embodiment, the limiting ring is used to restrict the inner sliding sleeve 9, thereby preventing the inner sliding sleeve 9 from detaching from the outer support sleeve 7. One end of the inner sliding sleeve 9 is elastically fixed by the cooperation of the limiting edge 10, the inner support edge 8 and the inner support spring, while the outer support spring 12 can elastically fix the other end of the inner sliding sleeve 9, thereby ensuring the stability of the inner sliding sleeve 9 installation. The end support 14 and the end limiting part 13 can better limit the inner cylinder stirring component, thereby ensuring the stability of the inner cylinder stirring component installation.

[0114] Example 5:

[0115] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0116] The inner cylinder agitator includes:

[0117] An outer sleeve assembly is provided on one side of the inner sliding sleeve 9 near the end limiting member 13.

[0118] An inner cylinder assembly is provided on one side of the inner sliding sleeve 9 near the end support member 14.

[0119] The outer cylinder assembly includes:

[0120] The support cylinder 15 has several equally spaced inner arc-shaped grooves 16 formed on its inner wall, and a connecting hole communicating with the inner arc-shaped grooves 16 is provided on the outer wall of the support cylinder 15. A plug is provided on the connecting hole, and the support cylinder 15 abuts against the end limiting member 13.

[0121] The outer inner cylinder 17 has a stepped outer wall, including an outer stepped portion 17a and an inner stepped portion 17b with decreasing diameter. The length of the outer stepped portion 17a is equal to that of the supporting cylinder 15. The inner stepped portion 17b extends out of the supporting cylinder 15. Several outer arc-shaped grooves 18 are provided on the outer wall of the outer stepped portion 17a, which are symmetrically arranged with the inner arc-shaped groove 16. The outer arc-shaped grooves 18 and the inner arc-shaped grooves 16 can be combined to form a rolling groove with a circular cross section.

[0122] The outer support ball 19 is provided on the rolling groove, and a number of freely rolling outer support balls 19 are provided.

[0123] An outer cylinder support is provided between the outer wall of the inner stepped portion 17b and the inner wall of the inner sliding sleeve 9.

[0124] In this embodiment, the outer cylinder crushes and mixes the incoming material on one side of the sliding sleeve, while the inner cylinder assembly further mixes the material passing through the outer cylinder assembly and breaks up small, adhering particles to improve stirring efficiency and shorten stirring time. The inner arc groove 16 on the support cylinder 15 and the inner arc groove 16 on the outer inner cylinder 17 can be combined to form a rolling groove with a circular cross-section. By setting the outer support ball 19 in the rolling groove, it can be ensured that the outer inner cylinder 17 can rotate relative to the support cylinder 15. The outer cylinder receiving part can improve the sealing effect to prevent material from entering the rolling groove formed at the connection between the support cylinder 15 and the outer stepped portion 17a. The connecting hole facilitates the installation of the outer support ball 19.

[0125] Example 6:

[0126] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0127] The outer cylinder support components include:

[0128] The inner washer 20 has a cross-section in the shape of a > and has arc-shaped contact portions on both sides. The inner washer 20 abuts against the end faces of the support cylinder 15 and the outer stepped portion 17a.

[0129] A wear-resistant metal ring 21 is provided on the side of the inner washer 20 away from the outer stepped portion 17a. The wear-resistant metal ring 21 has a cross section with a cross section of > and abuts against the inner washer 20.

[0130] A rotary sealing ring 22 is provided on the side of the wear-resistant metal ring 21 away from the inner gasket 20. The rotary sealing ring 22 has a cross-section in the shape of a > and the rotary sealing ring 22 abuts against the wear-resistant metal ring 21.

[0131] The outer pressure ring 23 is provided on the side of the rotating sealing ring 22 away from the wear-resistant metal ring 21. The outer pressure ring 23 is supported by metal and a protruding annular pressure block is formed on the side of the outer pressure ring 23 facing the rotating sealing ring 22.

[0132] An annular locking block 24 is formed in the middle of the inner sliding sleeve 9, which abuts against the other end of the outer clamping ring 23; and the outer wall of the inner stepped portion 17b abuts against the inner wall of the locking block 24.

[0133] In this embodiment, the ">" shaped inner gasket 20 can better contact the inner sliding sleeve 9 and the inner stepped portion 17b, thereby achieving a good sealing effect. The wear-resistant metal ring 21 can support the outer cylinder support, thereby ensuring the structural stability of the outer cylinder support. The rotating sealing ring 22 can further achieve a sealing effect. At the same time, the outer pressure ring 23 presses the inner gasket 20, the wear-resistant metal ring 21 and the rotating sealing ring 22 against the connection between the outer stepped portion 17a and the supporting cylinder 15, thereby ensuring a sealing effect. The locking block 24 can not only limit the outer pressure ring 23, but also limit the displacement of the outer inner cylinder 17 away from the end limiting member 13.

[0134] Example 7:

[0135] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0136] The outer inner cylinder 17 also includes:

[0137] The outer drive blade 25 has a through hole formed in the outer inner cylinder 17. Several outer drive blades 25 are formed on the side of the through hole near the outer stepped portion 17a, and the outer drive blades 25 are fixedly connected to the inner wall of the through hole.

[0138] The inner cutting claw 26 is formed on the side of the through hole near the inner step portion 17b, and a plurality of inner cutting claws 26 are evenly distributed in a circumference.

[0139] The inner cutting claw 26 includes:

[0140] The cutting claw body 26a extends from the outer stepped portion 17a to the inner stepped portion 17b and is inclined toward the middle of the through hole.

[0141] The claw body connecting block 26b is provided on one end of the outer stepped portion 17a of the cutting claw body 26a, and a fixing groove for the claw body connecting block 26b to be placed is formed through the inner wall of the hole. The claw body connecting block 26b is fixed to the fixing groove by bolts.

[0142] The cutting blade 26c is formed on both sides of the cutting claw body 26a away from the claw body connecting block 26b, and on both sides of the cutting claw body 26a. Several cutting blades 26c are evenly distributed and extend toward the center of the through hole.

[0143] In this embodiment, the rotation of the stirring shaft 2 causes the material to flow, which in turn drives the rotation of the outer drive blade 25, thereby causing the outer inner cylinder 17 to rotate. Simultaneously, the rotation of the outer inner cylinder 17 causes the inner cutting claw 26 to rotate. The inner cutting claw 26 rotates and cuts the material, crushing any adhering particles, thus improving the mixing effect. The inner cutting claw 26 can be made entirely of elastic metal. The claw connecting blocks on the inner cutting claw 26 facilitate the installation and fixation of the cutting claw body 26a. Furthermore, the orthographic projection of the inner cutting claw 26 is fan-shaped, with several circular... The orthographic projection of the column-distributed inner cutting claws 26 is an annular shape with a through hole in the middle, and gaps are formed between adjacent inner cutting claws 26. In the orthographic projection view, one part of the cutting blades 26c are formed on the through hole, and the other part of the cutting blades 26c are formed on the gaps between adjacent inner cutting blades. During operation, the material can pass through the through hole. When the impact force is large, the gaps between adjacent inner cutting claws 26 become larger, and another part of the material flows out through the gaps. During the process, small particles that are stuck together will come into contact with the cutting blades 26c to a certain extent and be cut, thereby improving the mixing effect.

[0144] Example 8:

[0145] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0146] The inner cylinder assembly includes:

[0147] The inner support cylinder 27 has one end abutting against the locking block 24 and the other end abutting against the end support member 14; and several evenly distributed mounting grooves 37 are formed on the outer wall of the inner support cylinder 27.

[0148] An inner support protrusion 28 is formed on the outer wall of the inner support cylinder 27, and the inner support protrusion 28 and the mounting groove 37 are alternately distributed.

[0149] An inner support rolling column 29 is provided on the inner support protrusion 28;

[0150] The inner ball bearing 30 is provided in each mounting groove 37, and several freely rolling inner ball bearings 30 are provided in each groove.

[0151] The mounting groove 37 has a multi-segment structure, including a bottom arc-shaped segment at the bottom and side arc-shaped segments of the inner support protrusions 28 on both sides of the bottom arc-shaped segment and connecting the two sides; a cutting groove is provided on the inner support protrusions 28, and a support rod is mounted in the middle of the cutting groove; the inner support rolling column 29 is rotatably fixed on the support rod, and the cross-section of the inner support rolling column 29 is a circular arc triangle or a cylinder.

[0152] In this embodiment, the inner support sleeve is rotatably limited within the inner sliding sleeve 9 by the locking block 24 and the end support member 14; the engagement of the mounting groove 37 and the inner ball 30 allows the inner support cylinder 27 to rotate relative to the inner sliding sleeve 9; the inner support portion can limit the inner ball 30, and by providing a freely rotatable support rolling column on the inner support protrusion 28, friction is further reduced during the rotation of the inner support cylinder 27, thereby ensuring that the inner support cylinder 27 can rotate well; if the inner support rolling column 29 adopts an arc triangle, the contact area between it and the inner sliding sleeve 9 can be further reduced.

[0153] Example 9:

[0154] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0155] The inner cylinder assembly also includes:

[0156] The inner drive blade 35 has a through inner support hole formed inside the inner support cylinder 27, and several inner drive blades 35 are evenly distributed on the inner support hole in a circumferential manner.

[0157] The inner cutting teeth 31 are provided on the inner drive blade 35. Several evenly distributed and sharp protruding inner cutting teeth 31 are provided, and the inner cutting teeth 31 are inclined towards the outer cylinder assembly.

[0158] The end support member 14 has a convex conical receiving groove 32 in the direction of the inner support cylinder 27, and the inner drive blade 35 has a concave mating part that mates with the receiving groove 32. The end of the inner support cylinder 27 abuts against the outer edge of the end support member 14 and has an arc-shaped contact rib 33. A gap is formed between the chamfered part of the inner drive blade 35 and the receiving groove 32.

[0159] In this embodiment, the material flows due to the rotation of the stirring shaft 2. The flow of the material drives the rotation of the inner drive blade 35, which in turn drives the outer inner support cylinder 27 to rotate. The rotation of the inner cutting teeth 31 further achieves the mixing effect. Since there is a gap between the inner drive blade 35 and the receiving groove 32, when the material passes through the flow hole 38, it will be cut and squeezed by the rotating inner drive blade 35, thereby further breaking up the small particles that are stuck together, which greatly improves the mixing effect. The inner cutting teeth 31 provided on the inner drive blade 35 can further improve the mixing effect.

[0160] Example 10:

[0161] This embodiment provides a pharmaceutical mixing tank, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0162] The blades also include:

[0163] Upper splitter plate 36 is provided on the upper part of the upper blade part 4, and the upper splitter plate 36 is separate from the upper blade part 4.

[0164] A number of evenly distributed support cutting plates 34 are provided between the upper impeller part 4 and the upper flow divider 36, and the support cutting plates 34 have blades in the direction of rotation of the stirring shaft 2.

[0165] The upper splitter plate 36 has a guide peak in the direction of the upper blade 4. The guide peak includes an outer arc-shaped portion 26a located away from the upper blade 4 and extending in the direction of the upper blade 4, and an inner arc-shaped portion 36b located near the upper blade 4 and extending in the direction away from the upper blade 4. The outer arc-shaped portion 26a and the inner arc-shaped portion 36b are connected by an arc-shaped connecting portion. The inner arc-shaped portion 36b and the upper blade 4 have a gap, and the gap decreases from the arc-shaped connecting portion in the direction away from the inner arc-shaped portion 36b.

[0166] In this embodiment, the upper airflow plate can block and guide the material from above the upper impeller 4, and the guide peak can better ensure the mixing effect. The supporting cutting plate 34 can connect the upper diverter plate 36 and the upper impeller 4. At the same time, the blade can further improve the mixing effect of the supporting cutting plate 34.

[0167] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pharmaceutical mixing tank, characterized in that, include: The tank (1) has an elliptical cross-section, a feeding port at the top, and a discharge port at the bottom. Stirring shaft (2): Two symmetrical stirring shafts (2) are provided inside the tank (1). The stirring assembly is provided on both stirring shafts (2) with several stirring components distributed at equal intervals, and the stirring components on the two stirring shafts (2) are staggered. A drive assembly is provided outside the bottom of the tank (1) to drive the stirring shaft (2) to rotate; The stirring assembly mentioned above includes: A shaft sleeve (3) is sleeved on the stirring shaft (2) and fixedly connected to the stirring shaft (2); The blades are provided on the bushing (3) with a plurality of blades evenly distributed around the circumference; Auxiliary stirring components are provided on each of the blades, with several auxiliary stirring components distributed at equal intervals. The blades include: The upper blade (4) has an upwardly convex arc-shaped structure; The propeller receiving part (5) is an arc shape that is symmetrical from top to bottom, and the upper part of the propeller receiving part (5) is connected to the upper blade part (4). The lower blade (6) is connected to the lower part of the blade support (5), and the lower blade (6) is arc-shaped with the top of the arc facing the upper blade (4). The receiving part has a plurality of evenly distributed perforated placement parts, and the auxiliary stirring component is disposed on the perforated placement parts; The auxiliary stirring component includes: The outer support cylinder (7) has a threaded portion formed on its outer wall, and an outer support edge is formed outward at one end of the outer support cylinder (7) and an inner support edge (8) is formed inward at the other end. An inner sliding sleeve (9) is coaxially provided inside the outer support cylinder (7), and a limiting edge (10) is formed on the side of the inner sliding sleeve (9) facing the outer support edge of the outer support cylinder (7). The limiting edge (10) slides with the inner wall of the outer support cylinder (7) and the limiting edge (10) is opposite to the inner support edge (8). An inner support spring (11) is provided inside the outer support cylinder (7), and the two ends of the inner support spring (11) abut against the limiting edge (10) and the inner support edge (8); An inner cylinder agitator is provided inside the inner sliding sleeve (9), which is a freely rotatable inner cylinder agitator.

2. The medicine mixing tank according to claim 1, wherein The auxiliary stirring component also includes: An outer support spring (12) is provided, wherein the inner sliding sleeve (9) without a limiting edge (10) extends out of the outer support sleeve (7) and is fitted with an outer support spring (12), and a limiting ring for limiting the outer support spring (12) is threaded to the end of the inner sliding sleeve (9). An end limiting member (13) is provided inside the inner sliding sleeve (9) and at one end with a limiting edge (10) to limit one end of the inner cylinder stirring member. An end support (14) is provided at one end of the inner sliding sleeve (9) and away from the limiting edge (10), which is the other end of the limiting inner cylinder agitator.

3. The medicine mixing tank according to claim 2, wherein The inner cylinder stirring component includes: An outer sleeve assembly is provided on one side of the inner sliding sleeve (9) near the end limiting member (13); An inner cylinder assembly is provided on one side of the inner sliding sleeve (9) near the end support (14); The outer sleeve assembly mentioned above includes: The inner wall of the support cylinder (15) is formed with a number of equally spaced inner arc grooves (16), and a connecting hole communicating with the inner arc grooves (16) is provided on the outer wall of the support cylinder (15), and a plug is provided on the connecting hole; The outer inner cylinder (17) has a stepped outer wall, including an outer stepped portion (17a) and an inner stepped portion (17b) with decreasing diameter. A plurality of outer arc-shaped grooves (18) are provided on the outer wall of the outer stepped portion (17a) and are symmetrically arranged with the inner arc-shaped groove (16). The outer arc-shaped grooves (18) and the inner arc-shaped grooves (16) can be combined to form a rolling groove with a circular cross section. The outer support ball (19) is provided on the rolling groove, and a number of freely rolling outer support balls (19) are provided. An outer cylinder support is provided between the outer wall of the inner stepped portion (17b) and the inner wall of the inner sliding sleeve (9).

4. The medicine mixing tank according to claim 3, characterized in that, The outer cylinder support component includes: The inner washer (20) has a cross-section in the shape of >, and the inner washer (20) has arc-shaped contact portions on both sides, and the inner washer (20) abuts against the end faces of the support cylinder (15) and the outer stepped portion (17a). A wear-resistant metal ring (21) is provided on the side of the inner washer (20) away from the outer stepped portion (17a) with a cross-section in the shape of >, and the wear-resistant metal ring (21) abuts against the inner washer (20); A rotary sealing ring (22) is provided on the side of the wear-resistant metal ring (21) away from the inner gasket (20) with a cross-section in the shape of >. An outer pressure ring (23) is provided on the side of the rotating sealing ring (22) away from the wear-resistant metal ring (21). The outer pressure ring (23) is made of metal and a protruding annular pressure block is formed on the side of the outer pressure ring (23) facing the rotating sealing ring (22). A locking block (24) is formed in the middle of the inner sliding sleeve (9) to abut against the other end of the outer pressure ring (23).

5. The medicament mixing canister of claim 4, wherein, The outer inner cylinder (17) further includes: The outer drive blade (25) has a through hole formed inside the outer inner cylinder (17), and a plurality of outer drive blades (25) are formed on the side of the through hole near the outer stepped portion (17a). The inner cutting claw (26) is formed in a plurality of evenly distributed inner cutting claws on the side of the through hole near the inner stepped portion (17b). The internal cutting claw (26) mentioned above includes: The cutting claw body (26a) extends from the outer stepped portion (17a) to the inner stepped portion (17b) and is inclined toward the center of the through hole; A claw body connecting block (26b) is provided on one end of the outer stepped portion (17a) of the cutting claw body (26a). The cutting blade (26c) is formed on the side of the cutting claw body (26a) away from the claw body connecting block (26b) and on both sides of the cutting claw body (26a), there are a plurality of equally spaced cutting blades (26c) that extend toward the center of the through hole.

6. The medicament mixing canister of claim 5, wherein, The inner cylinder assembly includes: The inner support cylinder (27) has one end abutting against the locking block (24) and the other end abutting against the end support member (14); and a plurality of evenly distributed mounting grooves (37) are formed on the outer wall of the inner support cylinder (27). An inner support protrusion (28) is formed on the outer wall of the inner support cylinder (27), and the inner support protrusion (28) and the mounting groove (37) are alternately distributed. An inner support rolling column (29) is provided on the inner support protrusion (28). The inner ball (30) is provided in each of the mounting grooves (37) and is capable of rolling freely.

7. A pharmaceutical mixing tank according to claim 6, characterized in that, The inner cylinder assembly further includes: The inner drive blade (35) has a through inner support hole formed inside the inner support cylinder (27), and several inner drive blades (35) are evenly distributed on the inner support hole in a circumferential manner. The inner cutting teeth (31) are provided on the inner drive blade (35) with a number of evenly distributed and sharp protruding inner cutting teeth (31), and the inner cutting teeth (31) are inclined toward the outer cylinder assembly.

8. The medicament mixing canister of claim 1, wherein, The blades also include: Upper splitter plate (36) is provided on the upper part of the upper blade part (4), and the upper splitter plate (36) and the upper blade part (4) are separately provided; Support cutting plates (34) are provided between the upper blade (4) and the upper splitter plate (36). Several evenly distributed support cutting plates (34) are provided.

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