A heated melting vessel for producing mupirocin ointment

Abstract

This invention provides a heating melting tank for producing mupirocin ointment, relating to the field of mupirocin ointment production technology. The heating melting tank for producing mupirocin ointment includes a tank body, a stirring shaft, stirring blades, a scraper, and a limiting assembly. The scraper is parallel to the stirring shaft and movably disposed on one side of the stirring shaft. The scraper has a first position and a second position. In the first position, the scraper abuts against the inner wall of the tank; in the second position, the scraper has a gap with the inner wall of the tank. The limiting assembly is disposed on the stirring shaft and connected to the scraper, used to limit and fix the scraper in the first and second positions. This invention has the effect of scraping off the mupirocin ointment adhering to the inner wall of the tank after discharge, thereby reducing waste.

Description

Technical Field

[0001] This invention relates to the field of mupirocin ointment production technology, and more specifically, to a heating melting tank for producing mupirocin ointment. Background Technology

[0002] Mupirocin ointment is a topical antibiotic preparation primarily used to treat skin infections such as impetigo and folliculitis. Its production process typically employs a melt-process, where an oily base (such as petrolatum or liquid paraffin) is heated and melted in a melting tank, then mupirocin active pharmaceutical ingredient is added, mixed thoroughly, and finally cooled and packaged.

[0003] Currently, after the material is discharged from the melting tank, a large amount of ointment adheres to the inner wall of the melting tank, resulting in waste. Summary of the Invention

[0004] The object of the present invention includes providing a heated melting vessel for producing mupirocin ointment, which can reduce waste when producing mupirocin ointment in a melting vessel.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a heating melting vessel for producing mupirocin ointment, comprising:

[0007] Tank body;

[0008] A stirring shaft is coaxially rotatably mounted inside the tank, and multiple stirring blades are mounted on the stirring shaft;

[0009] A scraper is movably disposed on one side of the stirring shaft, parallel to the stirring shaft. The scraper has a first position and a second position. When the scraper is in the first position, it abuts against the inner wall of the tank. When the scraper is in the second position, there is a gap between the scraper and the inner wall of the tank.

[0010] A limiting component is disposed on the stirring shaft for connection with the scraper and for limiting and fixing the scraper in the first position and the second position.

[0011] In an optional embodiment, at least one scraper is provided circumferentially on the stirring shaft.

[0012] In an optional embodiment, the scraper is chamfered on the side closest to the inner wall of the tank.

[0013] In an optional embodiment, the limiting component includes a connecting rod, a sleeve rod, a first positioning member and a second positioning member. The connecting rod is provided at both ends of the stirring shaft. One end of the sleeve rod is slidably sleeved onto the connecting rod, and the other end of the sleeve rod is connected to the scraper.

[0014] The first positioning element is disposed on the connecting rod, and the second positioning element is disposed on the sleeve rod. When the scraper is in the first position, the first positioning element and the second positioning element cooperate and jointly prevent the sleeve rod from moving toward the stirring shaft; when the scraper is in the second position, the first positioning element and the second positioning element cooperate and jointly prevent the sleeve rod from moving toward the inner wall of the tank.

[0015] In an optional embodiment, the second positioning element includes a steel ball and a limiting groove formed on the inner wall of the sleeve rod. The limiting groove includes a first groove and a second groove that are connected. The first groove and the second groove are closer to each other and have a shallow depth, while the first groove and the second groove are farther apart and have a deep depth. The steel ball is rolled on the bottom wall of the limiting groove. The first positioning element includes a receiving groove formed on the connecting rod for receiving the steel ball.

[0016] In an optional embodiment, an electromagnet is provided on the bottom wall of the receiving tank and located between the first tank and the second tank.

[0017] In an optional embodiment, both the bottom walls of the first and second troughs are connected to elastic cables that are connected to the steel ball. Both elastic cables are in a stretched state, and together they hold the steel ball between the first and second troughs.

[0018] In an optional embodiment, the first positioning member is provided on at least one side wall of the connecting rod, and the second positioning member is provided on the sleeve and cooperates with the first positioning member.

[0019] In an optional embodiment, the limiting component further includes a driving member for driving the sleeve rod to move along the connecting rod, thereby driving the scraper to move between the first position and the second position.

[0020] In an optional embodiment, the driving component includes an air pump, a sleeve is provided between the connecting rod and the stirring shaft, the connecting rod is hollow, an air chamber communicating with the connecting rod is opened in the sleeve, and an air supply pipe is connected between the sleeves located at both ends of the stirring shaft. The air pump is located outside the tank, and the output end of the air pump is communicating with the air chamber.

[0021] The beneficial effects of the heating melting vessel for producing mupirocin ointment provided in this embodiment of the invention include:

[0022] A scraper is movably mounted on one side of the stirring shaft, with the scraper having a second position detached from the inner wall of the tank and a first position abutting against the inner wall. When the scraper is in the second position, the stirring shaft rotates, causing the scraper to rotate and agitate the raw materials inside the molten tank. After the molten tank discharges, when the scraper is in the first position, the stirring shaft abuts against the inner wall of the molten tank. As the stirring shaft rotates the scraper, it scrapes off any mupirocin ointment adhering to the inner wall of the molten tank, preventing waste caused by the mupirocin ointment adhering to the inner wall. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the heating and melting vessel for producing mupirocin ointment from a first-view perspective, provided in an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure when the scraper is in the first position in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure when the scraper is in the second position in an embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view used to illustrate the structure of the limiting component in an embodiment of the present invention;

[0028] Figure 5 This is a cross-sectional view of the limiting component structure when the scraper is in the first position in an embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of the limiting component structure when the scraper is in the second position in an embodiment of the present invention;

[0030] Figure 7 This is a cross-sectional view illustrating the structure of the driving component in an embodiment of the present invention.

[0031] Icons: 100-Tank body; 200-Agitator shaft; 210-Agitator blade; 300-Scraper; 400-Limiting component; 410-Connecting rod; 420-Sleeve rod; 431-Receiving tank; 441-Steel ball; 442-Limiting groove; 4421-First tank; 4422-Second tank; 450-Electromagnet; 460-Driver; 461-Sleeve; 462-Gas chamber; 463-Gas pipe. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0038] Mupirocin ointment is a topical antibiotic preparation primarily used to treat skin infections such as impetigo and folliculitis. Its production process typically employs a melt-process, where an oily base (such as petrolatum or liquid paraffin) is heated and melted in a melting tank, then mupirocin active pharmaceutical ingredient is added, mixed thoroughly, and finally cooled and packaged.

[0039] However, in actual production, although the method of producing mupirocin ointment in a melting tank is simple to operate and cost-effective, there is a problem of a large amount of ointment residue adhering to the tank wall, which causes waste and cross-contamination.

[0040] To address the problem of excessive ointment residue on the tank walls during the production of mupirocin ointment using current melting tank methods, resulting in waste, this invention provides a heated melting tank for producing mupirocin ointment. The overall structure, working principle, and technical effects of the heated melting tank for producing mupirocin ointment provided by this invention are described in detail below through embodiments and accompanying drawings.

[0041] Please refer to Figures 1-7 This invention provides a heating and melting tank for producing mupirocin ointment, applicable to the production and processing of mupirocin ointment, specifically for the melting method of mupirocin ointment production. The heating and melting tank provided by this invention can effectively scrape off the mupirocin ointment adhering to the tank wall after discharge, thereby reducing waste of mupirocin ointment.

[0042] Please refer to Figures 1-3 The present invention provides a heating melting tank for producing mupirocin ointment, comprising a tank body 100, a stirring shaft 200, and a scraper 300. The tank body 100 is a melting tank for producing mupirocin ointment, comprising a tank body 100 and a tank cover mounted on the top of the tank body 100. The stirring shaft 200 is rotatably mounted on the tank cover and coaxially arranged with the tank body 100. Multiple stirring blades 210 are cross-arranged on the stirring shaft 200, and a driving component 460, such as a motor, is also mounted on the tank cover and connected to the stirring shaft 200 to drive the stirring shaft 200 to rotate, thereby stirring the raw materials in the melting tank through the stirring blades 210. The scraper 300 is movably mounted on one side of the stirring shaft 200, and the length direction of the scraper 300 is parallel to the length direction of the stirring shaft 200. The scraper 300 has a first position and a second position. When the scraper 300 is in the first position (e.g., ...), the scraper 300 is positioned in the second position. Figure 2 As shown), the edge of the scraper 300 abuts against the inner wall of the tank 100, thereby scraping off the mupirocin ointment adhering to the inner wall of the tank 100 by the scraper 300 when the stirring shaft 200 rotates. When the scraper 300 is in the second position (as shown) Figure 3 As shown, there is a gap between the scraper 300 and the inner wall of the tank 100. When the stirring shaft 200 rotates and drives the scraper 300 to rotate, the scraper 300 plays a role in stirring the raw materials in the melting tank, thereby improving production efficiency. Furthermore, the heating melting tank used for producing mupirocin ointment also includes a limiting component 400. The limiting component 400 is disposed on the stirring shaft 200. The limiting component 400 is used to connect the scraper 300 to the stirring shaft 200 and to limit and fix the scraper 300 in the first position and the second position.

[0043] A scraper 300 is movably arranged on one side of the stirring shaft 200, and the scraper 300 has a second position detached from the inner wall of the tank 100 and a first position abutting against the inner wall of the tank 100. When the scraper 300 is in the second position, the stirring shaft 200 rotates, driving the scraper 300 to rotate, and the scraper 300 stirs the raw materials in the molten tank. After the molten tank discharges, when the scraper 300 is in the first position, the stirring shaft 200 abuts against the inner wall of the molten tank. As the stirring shaft 200 drives the scraper 300 to rotate, the scraper 300 scrapes off the mupirocin ointment adhering to the inner wall of the molten tank, preventing the mupirocin ointment from adhering to the inner wall of the molten tank and causing waste.

[0044] Please refer to Figure 2 and Figure 3 To improve the scraping effect on the inner wall of the melting tank and stabilize the center of gravity of the stirring shaft 200, preventing it from shifting during rotation, in some optional embodiments, at least one scraper 300 is provided around the stirring shaft 200, and when there is more than one scraper 300, they are evenly spaced. Furthermore, to improve the scraping effect of the scraper 300 on the inner wall of the tank 100 and to prevent the scraper 300 from scratching the inner wall of the tank 100, in some optional embodiments, the scraper 300 has a chamfered edge near the inner wall of the tank 100, making the edge of the scraper 300 near the inner wall of the tank 100 arc-shaped.

[0045] Please refer to Figures 4-6 The limiting component 400 includes a connecting rod 410, a sleeve rod 420, a first positioning member, and a second positioning member. The connecting rod 410 is provided at both ends of the stirring shaft 200, and the length direction of the connecting rod 410 is perpendicular to the length direction of the stirring shaft 200. One end of the sleeve rod 420 is slidably sleeved on the connecting rod 410, and the other end of the sleeve rod 420 is connected to the scraper 300. By driving the sleeve rod 420 to slide along the connecting rod 410, the scraper 300 can be driven to move between the first position and the second position.

[0046] The first positioning element is mounted on the connecting rod 410, and the second positioning element is mounted on the sleeve rod 420, which is fitted onto the connecting rod 410. When the scraper 300 is in the first position, the first and second positioning elements cooperate and jointly prevent the sleeve rod 420 from moving towards the stirring shaft 200. This prevents the scraper 300 from shifting and affecting the scraping effect when scraping the mupirocin ointment on the inner wall of the tank 100. When the scraper 300 is in the second position, the first and second positioning elements cooperate and jointly prevent the sleeve rod 420 from moving towards the inner wall of the tank 100. Thus, when the scraper 300 is in the second position and is stirring the mupirocin ointment in the molten tank with the rotation of the stirring shaft 200, the position of the scraper 300 is prevented from shifting.

[0047] Please refer to Figures 4-6 The second positioning element includes a ball bearing 441 limiting groove 442, which is formed on the inner wall of the sleeve rod 420. The limiting groove 442 includes a first groove 4421 and a second groove 4422 that are connected. The cross-sectional shape of both the first groove 4421 and the second groove 4422 is triangular, and they are arranged opposite to each other. The end of the first groove 4421 and the second groove 4422 that are close to each other is shallow, and the end that is far from each other is deep, that is, the limiting groove 442 is deep in the middle and deep at both ends. The ball bearing 441 is rolled on the bottom wall of the limiting groove 442. The first positioning element includes a receiving groove 431 formed on the connecting rod 410, which is used to receive the ball bearing 441.

[0048] Furthermore, an electromagnet 450 is provided on the bottom wall of the receiving tank 431 and located between the first tank 4421 and the second tank 4422. When the electromagnet 450 is activated, it attracts the steel ball 441, so that the steel ball 441 always has a tendency to move towards the middle of the first tank 4421 and the second tank 4422.

[0049] Furthermore, to enhance the fixing and limiting effect of the limiting component 400 on the sleeve 420 on the connecting rod 410, in some optional embodiments, a first positioning member is provided on at least one side wall of the connecting rod 410, and correspondingly, at least one second positioning member is also provided on the inner wall of the sleeve 420, with the second positioning member cooperating one-to-one with the first positioning member. Thus, when the sleeve 420 is fixed and limited, it is constrained by multiple limiting points, improving the fixing and limiting effect of the sleeve 420.

[0050] The implementation principle of the limiting component 400 provided by the present invention is as follows:

[0051] Please refer to Figure 4 In the initial state, the positions of connecting rod 410 and sleeve rod 420 are as shown in the figure. At this time, the limiting groove 442 and the receiving groove 431 are directly opposite each other. Under the action of electromagnet 450, steel ball 441 is located between the first groove 4421 and the second groove 4422, and part of steel ball 441 extends into the receiving groove 431. At this time, sleeve rod 420 can be driven to move on connecting rod 410, moving scraper 300 to the first position abutting against the inner wall of tank 100. Figure 5 (as shown), or move the scraper 300 to a second position away from the inner wall of the tank 100 (as shown). Figure 6 (As shown).

[0052] Please refer to Figure 5 With scraper 300 in the first position, sleeve 420... Figure 4 State moved to Figure 5During this process, the sleeve rod 420 moves away from the connecting rod 410, and the steel ball 441 is driven into the second groove 4422 by the action of the side wall of the receiving groove 431. Due to the attraction of the electromagnet 450, the steel ball 441 will always adhere to the bottom wall of the second groove 4422. Furthermore, the steel ball 441 always maintains a state where one side abuts against the bottom wall of the second groove 4422 and the other side abuts against the connecting rod 410. During the scraping process of the scraper 300 on the inner wall of the melting tank to remove mupirocin ointment, the scraper 300 may be subjected to pressure extending towards the connecting rod 410, causing the scraper 300 to tend to move towards the connecting rod 410. Under the action of the electromagnet 450, the steel ball 441 tends to move towards the middle position between the first tank 4421 and the second tank 4422. At this time, under the action of the magnetic attraction and friction of the electromagnet 450, the steel ball 441 will be stuck between the connecting rod 410 and the bottom wall of the tank. That is, the steel ball 441 will lock the sleeve rod 420 in the current position, and the greater the pressure on the sleeve rod 420 towards the connecting rod 410, the tighter the steel ball 441 will lock the sleeve rod 420. This achieves the fixed limit of the sleeve rod 420 in the first position, preventing the scraper 300 from detaching from the inner wall of the tank 100 during operation, which would affect the scraping effect of mupirocin ointment on the tank wall.

[0053] When the scraping work is completed and the scraper 300 needs to be disengaged from the inner wall of the tank 100, the electromagnet 450 is turned off. At this time, the steel ball 441 is no longer under force, meaning that the steel ball 441 no longer has a clamping effect on the sleeve rod 420. The sleeve rod 420 can move towards the connecting rod 410, causing the scraper 300 to disengage from the inner wall of the tank 100, thus facilitating the switching of the position state of the scraper 300. Furthermore, to prevent the steel ball 441 from moving to the point of jamming the sleeve rod 420 when the electromagnet 450 is turned off, a magnetic piece can be installed on the side wall opposite to the first groove 4421 and the second groove 4422. The magnetic attraction of the magnetic piece to the steel ball 441 is less than the magnetic attraction of the electromagnet 450 to the steel ball 441. Thus, when the electromagnet 450 is turned off, the steel ball 441 moves to the deeper end of the first groove 4421 or the second groove 4422, preventing it from getting stuck between the sleeve rod 420 and the connecting rod 410.

[0054] In some alternative embodiments, elastic cables can be connected to the bottom walls of the first groove 4421 and the second groove 4422. Two elastic cables are connected to both sides of the steel ball 441, and both cables are in a stretched state, thus the two elastic cables together position the steel ball 441 in the middle of the first groove 4421 and the second groove 4422. And when the sleeve rod 420 moves from... Figure 4 State moved to Figure 5During the process, the sleeve rod 420 moves away from the connecting rod 410. Under the action of the side wall of the receiving groove 431, the steel ball 441 is driven and enters the second groove 4422. At this time, the elastic cable deformation in the first groove 4421 is greater, and it has a greater pulling force on the steel ball 441. This achieves the effect of pressing the steel ball 441 against the bottom wall of the second groove 4422 and the connecting rod 410, so as to self-lock and limit the sleeve rod 420 when it has a tendency to move towards the connecting rod 410. Its principle is similar to that of the electromagnet 450 mentioned above.

[0055] Please refer to Figure 6 When the scraper 300 is in the second position, its principle is the same as when it is in the first position. At this time, the steel ball 441 moves into the first groove 4421 and limits and fixes the sleeve 420 in the direction away from the connecting rod 410, thereby preventing the scraper 300 from moving towards the inner wall of the tank 100. This avoids the scraper 300 moving towards the inner wall of the tank 100 under the action of centrifugal force and the pressure of the raw material in the tank 100 in the second position, which would affect the stirring effect of mupirocin ointment in the tank 100 in the second position.

[0056] Please refer to Figure 7 To facilitate the movement and switching of the scraper 300 between the first position and the second position, and to improve the ease of use of the device, in some optional embodiments, the limiting assembly 400 further includes a driving member 460. The driving member 460 is connected to the sleeve rod 420 and is used to drive the sleeve rod 420 to reciprocate along the connecting rod 410, thereby driving the scraper 300 to move between the first position and the second position.

[0057] Please refer to Figure 7In some alternative embodiments, the drive component 460 includes an air pump. A sleeve 461 is provided between the connecting rod 410 and the stirring shaft 200. The connecting rod 410 is hollow and communicates with the inner wall cavity of the sleeve 420. An air chamber 462 communicating with the connecting rod 410 is opened in the sleeve 461. An air supply pipe 463 is connected between the sleeves 461 at both ends of the stirring shaft 200. To avoid the air supply pipe 463 affecting the operation of the stirring shaft 200, the air supply pipe 463 is a metal tube fitted to the stirring shaft 200. In other embodiments, the air supply pipe 463 can also be provided inside the stirring shaft 200. The air pump is provided outside the tank 100, and the input end of the air pump is connected to the external environment, while the output end of the air pump is connected to the air chamber 462. By pumping air into the connecting rod 410, the pressure inside the connecting rod 410 increases, thereby pushing the sleeve 420 away from the connecting rod 410, causing the scraper 300 to move to the first position. By evacuating air from the connecting rod 410 using an air pump, creating a negative pressure inside the connecting rod 410, the sleeve 420 moves towards the connecting rod 410 under atmospheric pressure until the scraper 300 moves to the second position. This facilitates the switching of the scraper 300 between the first and second positions.

[0058] In summary, the implementation principle of the heating melting tank for producing mupirocin ointment provided by the present invention is as follows: a scraper 300 is movably arranged on one side of the stirring shaft 200, and the scraper 300 has a second position detached from the inner wall of the tank body 100 and a first position abutting against the inner wall of the tank body 100. When the scraper 300 is in the second position, the stirring shaft 200 rotates, driving the scraper 300 to rotate, and the scraper 300 stirs the raw materials in the melting tank. After the melting tank discharges, when the scraper 300 is in the first position, the stirring shaft 200 abuts against the inner wall of the melting tank. As the stirring shaft 200 drives the scraper 300 to rotate, the scraper 300 scrapes off the mupirocin ointment adhering to the inner wall of the melting tank, avoiding waste caused by the mupirocin ointment adhering to the inner wall of the melting tank.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A heating melting vessel for producing mupirocin ointment, characterized in that, include: Tank body; A stirring shaft is coaxially rotatably mounted inside the tank, and multiple stirring blades are mounted on the stirring shaft; A scraper is movably disposed on one side of the stirring shaft, parallel to the stirring shaft. The scraper has a first position and a second position. When the scraper is in the first position, it abuts against the inner wall of the tank. When the scraper is in the second position, there is a gap between the scraper and the inner wall of the tank. A limiting component is disposed on the stirring shaft for connecting with the scraper and for limiting and fixing the scraper in the first position and the second position; The limiting component includes a connecting rod, a sleeve rod, a first positioning element and a second positioning element. The connecting rod is provided at both ends of the stirring shaft. One end of the sleeve rod is slidably sleeved onto the connecting rod, and the other end of the sleeve rod is connected to the scraper. The first positioning element is disposed on the connecting rod, and the second positioning element is disposed on the sleeve rod. When the scraper is in the first position, the first positioning element and the second positioning element cooperate and jointly prevent the sleeve rod from moving toward the stirring shaft; when the scraper is in the second position, the first positioning element and the second positioning element cooperate and jointly prevent the sleeve rod from moving toward the inner wall of the tank. The second positioning component includes a steel ball and a limiting groove formed on the inner wall of the sleeve rod. The limiting groove includes a first groove and a second groove that are connected. The first groove and the second groove are closer to each other and have a shallower depth, while the first groove and the second groove are farther apart and have a deeper depth. The steel ball is rolled on the bottom wall of the limiting groove. The first positioning component includes a receiving groove formed on the connecting rod for receiving the steel ball. An electromagnet is provided on the bottom wall of the receiving tank and between the first tank and the second tank; a magnetic piece is provided on the side wall opposite to the first tank and the second tank, and the magnetic attraction of the magnetic piece to the steel ball is less than the magnetic attraction of the electromagnet to the steel ball.

2. The heating melting vessel for producing mupirocin ointment according to claim 1, characterized in that, At least one scraper is provided around the stirring shaft.

3. The heating melting vessel for producing mupirocin ointment according to claim 1, characterized in that, The scraper has a chamfered edge on the side closest to the inner wall of the tank.

4. The heating melting vessel for producing mupirocin ointment according to claim 1, characterized in that, Both the first and second troughs have elastic cables connected to the steel ball on their bottom walls. Both elastic cables are in a stretched state, and together they keep the steel ball between the first and second troughs.

5. The heating melting vessel for producing mupirocin ointment according to claim 1, characterized in that, The first positioning member is provided on at least one side wall of the connecting rod, and the second positioning member is provided on the sleeve rod and cooperates with the first positioning member.

6. The heating melting vessel for producing mupirocin ointment according to claim 1, characterized in that, The limiting component further includes a driving member, which drives the sleeve rod to move along the connecting rod to drive the scraper to move between the first position and the second position.

7. The heating melting vessel for producing mupirocin ointment according to claim 6, characterized in that, The driving component includes an air pump. A sleeve is provided between the connecting rod and the stirring shaft. The connecting rod is hollow. An air chamber communicating with the connecting rod is opened in the sleeve. An air supply pipe is connected between the sleeves located at both ends of the stirring shaft. The air pump is located outside the tank body, and the output end of the air pump is connected to the air chamber.

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