A discharge regulating valve for polyanhydride

Abstract

The invention discloses a discharging regulating valve for polyanhydride, relates to the technical field of discharging regulating valves, and comprises a regulating valve body, on which a second motor is fixedly mounted, a rotating shaft is fixedly mounted on the upper end of the second motor via an output shaft, a stirring blade is fixedly mounted on the circumferential surface of the rotating shaft, a second friction block is fixedly mounted on the upper end of the rotating shaft, a fixing plate is fixedly mounted on the regulating valve body, and a round cover is fixedly mounted on the side end of the fixing plate. The invention uses the stirring blade arranged inside the regulating valve body to keep the polyanhydride in a pipeline in a uniform state under stirring, thereby avoiding precipitation or stratification of the polyanhydride when the polyanhydride is discharged through the regulating valve body. For the polyanhydride that stays in the regulating valve body for a long time, stirring can avoid uneven distribution caused by stillness, thereby ensuring smooth flow when discharging is required, and ensuring stable quality of the discharging.

Description

Technical Field

[0001] The invention relates to the technical field of discharge regulating valves, and in particular to a discharge regulating valve for polymeric anhydride. Background Art

[0002] Polyanhydride is a kind of high molecular compound. Its molecular structure contains multiple anhydride groups, which give it unique chemical properties. Since the anhydride groups can react with various compounds such as water, alcohol, and amine, polyanhydride has high activity in chemical reactions. It is usually formed by polymerization of multiple anhydride molecules. In the chemical industry, the discharge control of polyanhydride is very important.

[0003] The discharge regulating valve currently used for polyanhydride has been found to have at least the following technical problems:

[0004] First, since the solubility of polyanhydride is usually affected by temperature, when the temperature decreases, the solubility of polyanhydride in the solvent may decrease. Traditional discharge regulating valves often lack effective stirring devices, which leads to the precipitation of solutes, causing the polyanhydride to easily precipitate or stratify during the discharge process, affecting the discharge quality and subsequent use effects.

[0005] Second, in terms of discharge adjustment methods, existing regulating valves usually only have a single adjustment mode, which cannot meet different production needs such as precise quantitative control and flexible large-scale discharge. This makes it difficult to accurately control the discharge volume according to actual conditions during the production process of polyanhydride, affecting production efficiency and product quality.

[0006] Third, after long-term use, the baffle in the valve is prone to residues of polyanhydride and impurities, which can cause the valve baffle to open and close poorly, affecting the smoothness and accuracy of the discharge. Most of the existing discharge regulating valves do not have special cleaning devices to solve this problem, requiring frequent shutdowns for manual cleaning, increasing maintenance costs and the risk of production interruptions. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides a discharge regulating valve for polyanhydride to solve the above-mentioned technical problems.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A discharging regulating valve for polyanhydride, comprising a regulating valve body, a second motor is fixedly mounted on the regulating valve body, a rotating shaft is fixedly mounted on the upper end of the second motor through an output shaft, a stirring blade is fixedly mounted on the circumferential surface of the rotating shaft, a second friction block is fixedly mounted on the upper end of the rotating shaft, a fixing plate is fixedly mounted on the regulating valve body, a round cover is fixedly mounted on the side end of the fixing plate, a valve baffle is slidably mounted in the regulating valve body and the fixing plate, both side ends of the valve baffle are provided with regulating mechanisms, both side ends of the fixing plate are provided with lifting mechanisms, a cleaning mechanism is provided in the round cover, the regulating mechanism comprises a fixing block, the fixing A double-headed pin is slidably installed in the block, the lifting mechanism includes an L-shaped rod and an adjusting block, an extrusion plate is fixedly installed on the L-shaped rod, a second circular hole is opened on the L-shaped rod, and a first circular hole is opened on the adjusting block, and both ends of the double-headed pin are horizontally aligned with the second circular hole and the first circular hole respectively, the cleaning mechanism includes a rotating rod, a cleaning disc is fixedly installed on the left end of the rotating rod, a first friction block is fixedly installed on the right end of the rotating rod, a moving rod is rotatably installed through a bearing in the middle of the rotating rod, and both side ends of the moving rod are slidably installed on both sides of the circumferential surface of the round cover, and the moving rod is vertically aligned with the extrusion plate.

[0012] Preferably: the rotating shaft is rotatably installed in the regulating valve body, a slot is provided on the fixed plate, the fixed plate is through-connected with the regulating valve body and the round cover, an adjusting paddle is fixedly installed on the double-headed pin, the adjusting paddle is slidably installed in the fixed block, and the fixed block is slidably installed on the side end of the fixed plate.

[0013] Preferably: two T-shaped grooves are provided on both side ends of the fixed plate, a second T-shaped slider is fixedly installed on the L-shaped rod, the second T-shaped slider is slidably installed in the T-shaped groove provided on the fixed plate, and the side end of the extrusion plate is an inclined surface.

[0014] Preferably: a first T-shaped slider is fixedly mounted on the adjusting block, the first T-shaped slider is slidably mounted in a T-shaped slot provided on the fixing plate, a circular frame is fixedly mounted on the adjusting block, a round-headed rod is slidably mounted through the circular frame, a limiting circular plate is fixedly mounted on the round-headed rod, and a spring is sleeved on the round-headed rod.

[0015] Preferably: the spring is fixedly installed between the limiting circular plate and the inner wall of the circular frame, the round head rod is slidably installed in a slot opened in the fixed plate, a first motor is fixedly installed on the fixed plate, a threaded rod is fixedly installed on the lower end of the first motor through an output shaft, and the threaded rod is installed in the valve baffle through a thread.

[0016] (III) Beneficial effects

[0017] 1. The present invention uses stirring blades arranged inside the regulating valve body to keep the polyanhydride in the pipeline in a uniform state under stirring, thereby avoiding precipitation or stratification of the polyanhydride when it is discharged through the regulating valve body. For the polyanhydride that stays in the regulating valve body for a long time, stirring can avoid uneven distribution caused by stillness, ensuring that it can flow smoothly when discharge is required, and ensuring stable quality of the discharged material.

[0018] Second: The present invention can clean the end surface of the valve baffle plate that contacts the polyanhydride by means of a rotatable cleaning disc disposed at the side end of the valve baffle plate, thereby preventing impurities or sediments from adhering to the valve core when the polyanhydride contacts the valve baffle plate, causing the valve core to move poorly and opening and closing difficulties, thereby improving the efficiency of discharging the polyanhydride through the discharge regulating valve.

[0019] 3. The present invention provides an adjustment block and an L-shaped rod, as well as a fixed block and a movable double-headed latch fixedly installed on the valve baffle, so that the upward movement of the valve baffle can be adjusted according to the demand for polyanhydride discharging, thereby greatly improving the diversity of polyanhydride discharging, which enables polyanhydride to adapt well to various complex production environments.

[0020] Fourth: The present invention has multiple slots opened on the fixed plate, and structures such as round-headed rods are provided, so that the valve can adjust the valve baffle according to different discharge conditions of the polyanhydride. In the fields of chemical production, the amount of polyanhydride usually needs to be precisely controlled. The quantitatively adjusted discharge valve can accurately output the polyanhydride according to the preset flow rate, ensuring that the material ratio of each reaction step in the production process is accurate.

[0021] 5. The present invention arranges the first friction block in the cleaning mechanism at the side end of the second friction block, so that when the cleaning disc needs to be rotated, it can be operated by the power source of the second motor through the engagement of the first friction block with the cleaning disc, thereby avoiding the need for a separate power source to operate the cleaning disc, greatly saving the power cost setting, and when the first friction block in the cleaning mechanism contacts the second friction block, the cleaning disc will also contact the valve baffle at the same time, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Figure 1 It is a structural diagram of the present invention as a whole;

[0024] Figure 2 This is a structural diagram of the regulating valve body of the present invention;

[0025] Figure 3 It is a structural diagram of the cleaning disc of the present invention;

[0026] Figure 4 is a structural diagram of the first friction block of the present invention;

[0027] Figure 5 It is a structural diagram of the fixing plate of the present invention;

[0028] Figure 6 It is a structural diagram of the valve baffle of the present invention;

[0029] Figure 7 It is a structural diagram of the L-shaped rod of the present invention;

[0030] Figure 8 It is a structural diagram of the regulating block of the present invention;

[0031] Fig. 9 For the present invention Figure 5 A magnified view of the structure at A.

[0032] Legend: 11. Fixed plate; 12. First motor; 13. Threaded rod; 14. Round cover; 15. Cleaning disc; 16. Rotating rod; 17. First friction block; 18. Moving rod; 19. Slot; 21. Adjusting valve body; 22. Stirring blade; 23. Second motor; 24. Rotating shaft; 25. Second friction block; 31. Valve baffle; 32. Double-headed latch; 33. Adjusting paddle; 34. Fixed block; 41. Adjusting block; 42. First round hole; 43. Reciprocating frame; 44. First T-shaped slider; 45. Round-headed rod; 46. Limiting round plate; 47. Spring; 51. Extrusion plate; 52. L-shaped rod; 53. Second T-shaped slider; 54. Second round hole; 61. T-shaped slide. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, in view of the problems existing in the prior art, the present invention provides a discharging regulating valve for polyanhydride, comprising a regulating valve body 21, on which a second motor 23 is fixedly mounted, a rotating shaft 24 is fixedly mounted on the upper end of the second motor 23 through an output shaft, a stirring blade 22 is fixedly mounted on the circumferential surface of the rotating shaft 24, a second friction block 25 is fixedly mounted on the upper end of the rotating shaft 24, a fixing plate 11 is fixedly mounted on the regulating valve body 21, a round cover 14 is fixedly mounted on the side end of the fixing plate 11, a valve baffle 31 is slidably mounted in the regulating valve body 21 and the fixing plate 11, and both side ends of the valve baffle 31 are provided with regulating mechanisms, The fixed plate 11 is provided with a lifting mechanism at both ends, the circular cover 14 is provided with a cleaning mechanism, the adjusting mechanism includes a fixed block 34, a double-headed bolt 32 is slidably installed in the fixed block 34, the lifting mechanism includes an L-shaped rod 52 and an adjusting block 41, an extrusion plate 51 is fixedly installed on the L-shaped rod 52, a second circular hole 54 is opened through the L-shaped rod 52, a first circular hole 42 is opened on the adjusting block 41, and the two ends of the double-headed bolt 32 are horizontally aligned with the second circular hole 54 and the first circular hole 42 respectively, the cleaning mechanism includes a rotating rod 16, a cleaning disc 15 is fixedly installed on the left end of the rotating rod 16, and a cleaning disc 15 is fixedly installed on the right end of the rotating rod 16 A first friction block 17 is fixedly installed at one end of the rotating rod 16, a moving rod 18 is rotatably installed through a bearing in the middle of the rotating rod 16, and both side ends of the moving rod 18 are slidably installed on both sides of the circumferential surface of the round cover 14, and the moving rod 18 is vertically aligned with the extrusion plate 51. When the discharge regulating valve is used for discharging the polyanhydride, it is connected to the pipeline for transporting the polyanhydride. The regulating valve body 21 is provided with a stirring blade 22 and one end of the round cover 14 is a feed port, and the other end is a discharge port. When the polyanhydride flows into the regulating valve body 21 from the pipeline, the user first controls the second motor 23 to work. When the second motor 23 works, it drives the rotating shaft 2 through the output shaft 4 rotates, and the rotation of the rotating shaft 24 drives the stirring blade 22 to rotate. At this time, the stirring blade 22 stirs the polyanhydride flowing into the regulating valve body 21, so that the polyanhydride will not precipitate when discharging. In the present invention, the stirring blade 22 is arranged inside the regulating valve body 21, so that the polyanhydride in the pipeline can be kept in a uniform state under stirring, and the polyanhydride can be prevented from precipitating or stratifying when being discharged through the regulating valve body 21. For the polyanhydride staying in the regulating valve body 21 for a long time, stirring can avoid uneven distribution caused by stillness, ensure that it can flow smoothly when discharging is required, and ensure stable quality of the discharging.

[0035] The rotating shaft 24 is rotatably installed in the regulating valve body 21, a slot 19 is provided on the fixed plate 11, and the fixed plate 11 is connected with the regulating valve body 21 and the round cover 14. An adjusting paddle 33 is fixedly installed on the double-headed bolt 32, and the adjusting paddle 33 is slidably installed in the fixed block 34. The fixed block 34 is slidably installed on the side end of the fixed plate 11. Two T-shaped slide grooves 61 are provided on both side ends of the fixed plate 11. A second T-shaped slider 53 is fixedly installed on the L-shaped rod 52, and the second T-shaped slider 53 is slidably installed in the T-shaped slide groove 61 provided on the fixed plate 11. The side end of the extrusion plate 51 is an inclined surface. The discharge regulating valve has two adjustment modes, one of which is fixed The first method is to control the valve baffle 31 in the regulating valve body 21 to move upward, and the other method is to adjust the position of the valve baffle 31 arbitrarily. The first method is for the user to move the adjusting paddle 33, and then, by fixing the adjusting paddle 33 and the double-headed plug 32, move the side end of the double-headed plug 32 into the first circular hole 42 opened in the adjusting block 41. When the double-headed plug 32 is inserted into the first circular hole 42, the user can control the first motor 12 to work, and the first motor 12 will drive the threaded rod 13 to rotate through the output shaft. Through the threaded connection between the threaded rod 13 and the valve baffle 31, and the valve baffle 31 is limited inside the fixing plate 11, the valve baffle 31 will move upward, and at this time the valve baffle 31 is The plate 31 will drive the fixed block 34, the double-headed latch 32 and the adjusting block 41 to move upward (the adjusting block 41 is slidably installed in the T-shaped slot 61 opened on the fixed plate 11 through the first T-shaped slider 44, so the adjusting block 41 will not deviate when moving upward). At this time, the round-headed rod 45 inside the return frame 43 will move in the multiple slots 19 opened on the fixed plate 11. Since a spring 47 is provided between the round-headed rod 45 and the limiting circular plate 46 and the return frame 43, the round-headed rod 45 can move backward to allow the return frame 43 to move upward. When it does not move up, the end of the round-headed rod 45 will be inserted into the slot 19 opened on the fixed plate 11, and the distance between each slot 19 is a fixed value, so the valve The upward movement distance of the baffle 31 in the fixed plate 11 and the regulating valve body 21 is fixed, so that the discharge regulating valve can position the valve baffle 31 according to the position between each slot 19, thereby completing quantitative control of discharge, which is suitable for the batch discharge of polyanhydride. The present invention uses multiple slots 19 opened on the fixed plate 11 and the round head rod 45 and other structures to enable the valve to adjust the valve baffle 31 according to different discharge conditions of polyanhydride. In the field of chemical production, the amount of polyanhydride usually needs to be precisely controlled. The quantitatively adjusted discharge valve can accurately output polyanhydride according to the preset flow rate, ensuring that the material ratio of each reaction step in the production process is accurate and correct.

[0036] The adjusting block 41 is fixedly provided with a first T-shaped slider 44, which is slidably installed in a T-shaped slot 61 provided on the fixing plate 11. The adjusting block 41 is fixedly provided with a return frame 43, and a round-headed rod 45 is slidably installed through the return frame 43. A limited circular plate 46 is fixedly installed on the round-headed rod 45, and a spring 47 is sleeved on the round-headed rod 45. The user moves the adjusting paddle 33 in the opposite direction, so that the other end of the double-headed latch 32 can be inserted into the second circular hole 54 provided on the L-shaped rod 52. At this time, the user controls the valve baffle 31 to move forward through the first motor 12. The valve baffle 31 can be moved upwards, and at this time, since there is no limit between the round-head rod 45 and the slot 19 formed by the fixing plate 11, the valve baffle 31 can be moved upwards to different positions at will, so it is suitable for the situation where there is a large amount of polyanhydride in the pipeline and the discharge needs to be completed in one time. The present invention provides an adjustment block 41 and an L-shaped rod 52, as well as a fixing block 34 fixedly installed on the valve baffle 31 and a movable double-headed latch 32, so that the upward movement of the valve baffle 31 can be adjusted according to the demand for polyanhydride discharge, thereby greatly improving the diversity of polyanhydride discharge, which enables the polyanhydride to adapt well to various complex production environments.

[0037] The spring 47 is fixedly installed between the limiting circular plate 46 and the inner wall of the circular frame 43, the round head rod 45 is slidably installed in the slot 19 provided in the fixed plate 11, the fixed plate 11 is fixedly installed with a first motor 12, the lower end of the first motor 12 is fixedly installed with a threaded rod 13 through an output shaft, and the threaded rod 13 is installed in the valve baffle 31 through a threaded penetration. When in the second use method mentioned above, the discharge regulating valve can clean the side of the valve baffle 31 that contacts with the polyanhydride to avoid impurities remaining on the valve baffle 31 by the polyanhydride, which affects the opening and closing. When the L-shaped rod 52 moves upward (the L-shaped rod 52 is slidably installed in the T-shaped slide groove 61 provided in the fixed plate 11 through the second T-shaped slider 53), Therefore, when the L-shaped rod 52 moves upward, it will not deviate), and will drive the extrusion plate 51 to move upward, and when the extrusion plate 51 moves upward, it will contact the moving rod 18. At this time, through the inclined surface on the extrusion plate 51, the extrusion plate 51 can drive the moving rod 18 to move toward the position of the valve baffle 31, and because the front and rear ends of the valve baffle 31 are both provided with the extrusion plates 51, both ends of the moving rod 18 can move, so that the moving rod 18 can drive the rotating rod 16 and the cleaning disc 15 (the side end of the cleaning disc is made of nylon brush, which will not easily scratch the surface of the valve baffle like a metal brush) to move, and at this time, the first friction block 17 at the rear end of the rotating rod 16 will move to the surface of the second friction block 25. The cleaning disc 15 will move to fit with the surface of the valve baffle 31. At this time, since the second friction block 25 is fixed to the rotating shaft 24, and the rotating shaft 24 is rotating, the second friction block 25 can rotate. Through the high friction between the second friction block 25 and the first friction block 17, the first friction block 17 will also rotate, and the first friction block 17 will drive the cleaning disc 15 to rotate. At this time, the cleaning disc 15 will rub and clean the side end of the valve baffle 31. The present invention can clean the end face of the valve baffle 31 that contacts the polyanhydride by arranging the rotatable cleaning disc 15 at the side end of the valve baffle 31, so as to avoid the polyanhydride from contacting with the valve baffle 31. The invention solves the problem that impurities or sediments adhere to the valve core, resulting in poor movement of the valve core and difficulty in opening and closing, thereby improving the efficiency of discharging polyanhydride through the discharging regulating valve. The present invention arranges the first friction block 17 in the cleaning mechanism at the side end of the second friction block 25, so that when the cleaning disc 15 needs to be rotated, it can be operated by the power source of the second motor 23 through the engagement of the first friction block 17 with the cleaning disc 15, thereby avoiding the need for a separate power source for the cleaning disc 15 to operate, greatly saving the power cost setting, and when the first friction block 17 in the cleaning mechanism contacts the second friction block 25, the cleaning disc 15 will also contact the valve baffle 31 at the same time, which is very convenient.

[0038] Working principle:

[0039] In the first step, when the discharge regulating valve is used for discharging the polyanhydride, it is connected to the pipeline for transporting the polyanhydride. The regulating valve body 21 is provided with a stirring blade 22 and a round cover 14, one end of which is a feed port, and the other end is a discharge port. When the polyanhydride flows from the pipeline into the regulating valve body 21, the user first controls the second motor 23 to work. When the second motor 23 works, it drives the rotating shaft 24 to rotate through the output shaft, and the rotation of the rotating shaft 24 drives the stirring blade 22 to rotate. At this time, the stirring blade 22 will stir the polyanhydride flowing into the regulating valve body 21. The polyanhydride in the regulating valve body 21 is stirred so that the polyanhydride will not precipitate when discharging. The present invention provides a stirring blade 22 inside the regulating valve body 21 so that the polyanhydride in the pipeline can be kept in a uniform state under stirring, thereby avoiding precipitation or stratification of the polyanhydride when it is discharged through the regulating valve body 21. For the polyanhydride that stays in the regulating valve body 21 for a long time, stirring can avoid uneven distribution caused by stillness, thereby ensuring smooth flow when discharging is required and ensuring stable quality of the discharging.

[0040] In the second step, the discharge regulating valve has two adjustment modes, one is to quantitatively control the valve baffle 31 in the regulating valve body 21 to move upward, and the other is to arbitrarily adjust the position of the valve baffle 31;

[0041] Among them, in the first type, the user moves the adjusting paddle 33, and then moves the side end of the double-headed plug 32 to the first circular hole 42 opened in the adjusting block 41 through the fixing of the adjusting paddle 33 and the double-headed plug 32. When the double-headed plug 32 is inserted into the first circular hole 42, the user can control the first motor 12 to work, and the first motor 12 will drive the threaded rod 13 to rotate through the output shaft, through the threaded connection between the threaded rod 13 and the valve baffle 31, and the valve baffle 31 is fixed in the first circular hole 42. Under the limit position inside the fixed plate 11, the valve baffle 31 will move upward, and at this time, the valve baffle 31 will drive the fixed block 34, the double-headed latch 32 and the adjusting block 41 to move upward (the adjusting block 41 is slidably installed in the T-shaped slide groove 61 opened on the fixed plate 11 through the first T-shaped slider 44, so the adjusting block 41 will not deviate when moving upward), and at this time, the round head rod 45 inside the return frame 43 will move in the position of the multiple slots 19 opened on the fixed plate 11. A spring 47 is provided between the plate 46 and the return frame 43, so the round-headed rod 45 can move backward to allow the return frame 43 to move upward. When not moving upward, the end of the round-headed rod 45 will be inserted into the slot 19 provided in the fixed plate 11, and the distance between each slot 19 is a fixed value, so the distance of the valve baffle 31 moving upward in the fixed plate 11 and the regulating valve body 21 is fixed, so that the discharging regulating valve can position the valve baffle 31 according to the position between each slot 19, thereby completing quantitative control of discharging, which is suitable for the batch discharging of polyanhydride. The present invention uses a plurality of slots 19 provided on the fixed plate 11 and the round-headed rod 45 and other structures, so that the valve can adjust the valve baffle 31 according to different discharging conditions of polyanhydride. In the field of chemical production, the amount of polyanhydride usually needs to be precisely controlled. The quantitatively adjusted discharging valve can accurately output polyanhydride according to a preset flow rate, ensuring that the material ratio of each reaction step in the production process is accurate and correct;

[0042] Among them, the second user moves the adjusting paddle 33 in the opposite direction, so that the other end of the double-headed latch 32 can be inserted into the second round hole 54 formed by the L-shaped rod 52. At this time, the user controls the valve baffle 31 to move up through the first motor 12. At this time, since there is no limit between the round-headed rod 45 and the slot 19 formed by the fixed plate 11, the valve baffle 31 can be moved up to different positions at will, so it is suitable for the situation where there is a large amount of polyanhydride in the pipeline and the discharge needs to be completed in one time. The present invention provides an adjusting block 41 and an L-shaped rod 52, as well as a fixed block 34 and a movable double-headed latch 32 fixedly installed on the valve baffle 31, so that the upward movement of the valve baffle 31 can be adjusted according to the demand for polyanhydride discharge, thereby greatly improving the diversity of polyanhydride discharge, which enables polyanhydride to adapt well to various complex production environments.

[0043] In the third step, when the second method of use is used, the discharge regulating valve can clean the side of the valve baffle 31 that contacts the polyanhydride to prevent the polyanhydride from leaving impurities on the valve baffle 31 and affecting the opening and closing. When the L-shaped rod 52 moves upward (the L-shaped rod 52 is slidably installed in the T-shaped slide groove 61 provided in the fixed plate 11 through the second T-shaped slider 53, so the L-shaped rod 52 will not deviate when moving upward), it will drive the extrusion plate 51 to move upward, and when the extrusion plate 51 moves upward, it will contact the moving rod 18. At this time, through the inclined surface on the extrusion plate 51, the extrusion plate 51 can drive the moving rod 18 to move toward the position of the valve baffle 31, and because the front and rear ends of the valve baffle 31 are both provided with the extrusion plates 51, both ends of the moving rod 18 can move, so that the rotating rod 16 and the cleaning disc 15 (the side end of the cleaning disc is made of nylon brush, which will not easily scratch the surface of the valve baffle like a metal brush) can be driven by the moving rod 18 to move. At this time, the first friction block 17 at the rear end of the rotating rod 16 will move to fit with the surface of the second friction block 25, and the cleaning disc 15 will move to fit with the surface of the valve baffle 31. At this time, since the second friction block 25 is fixed to the rotating shaft 24, and the rotating shaft 24 is rotating, the second friction block 25 can rotate. Through the high friction between the second friction block 25 and the first friction block 17, the first friction block 17 will also rotate, and the first friction block 17 will drive the cleaning disc 15 to rotate. At this time, the cleaning disc 15 will frictionally clean the side end of the valve baffle 31. The present invention can clean the end face of the valve baffle 31 that contacts the polyanhydride by providing a rotatable cleaning disc 15 at the side end of the valve baffle 31, so as to avoid impurities or sediments adhering to the valve core when the polyanhydride contacts the valve baffle 31, resulting in poor movement of the valve core and difficulty in opening and closing, thereby improving the efficiency of the polyanhydride discharging through the discharging regulating valve.

[0044] In the fourth step, the present invention arranges the first friction block 17 in the cleaning mechanism at the side end of the second friction block 25, so that when the cleaning disc 15 needs to be rotated, it can be operated by the power source of the second motor 23 through the engagement of the first friction block 17 with the cleaning disc 15, thereby avoiding the need for a separate power source to operate the cleaning disc 15, greatly saving the power cost setting, and when the first friction block 17 in the cleaning mechanism contacts the second friction block 25, the cleaning disc 15 will also contact the valve baffle 31 at the same time, which is very convenient.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A discharge regulating valve for polyanhydride, comprising a regulating valve body (21), characterized in that: A second motor (23) is fixedly mounted on the regulating valve body (21); a rotating shaft (24) is fixedly mounted on the upper end of the second motor (23) via an output shaft; a stirring blade (22) is fixedly mounted through the circumferential surface of the rotating shaft (24); and a second friction block (25) is fixedly mounted on the upper end of the rotating shaft (24); A fixing plate (11) is fixedly mounted on the regulating valve body (21), a round cover (14) is fixedly mounted on the side end of the fixing plate (11), a valve baffle (31) is slidably mounted inside the regulating valve body (21) and the fixing plate (11), both side ends of the valve baffle (31) are provided with adjusting mechanisms, both side ends of the fixing plate (11) are provided with lifting mechanisms, and a cleaning mechanism is provided inside the round cover (14); The adjusting mechanism comprises a fixed block (34), a double-headed bolt (32) is slidably installed in the fixed block (34), the lifting mechanism comprises an L-shaped rod (52) and an adjusting block (41), an extrusion plate (51) is fixedly installed on the L-shaped rod (52), a second circular hole (54) is opened through the L-shaped rod (52), a first circular hole (42) is opened on the adjusting block (41), and two ends of the double-headed bolt (32) are horizontally aligned with the second circular hole (54) and the first circular hole (42) respectively; The cleaning mechanism comprises a rotating rod (16), a cleaning disc (15) is fixedly mounted on the left end of the rotating rod (16), a first friction block (17) is fixedly mounted on the right end of the rotating rod (16), a moving rod (18) is rotatably mounted through a bearing in the middle of the rotating rod (16), both side ends of the moving rod (18) are slidably mounted on both sides of the circumferential surface of the circular cover (14), and the moving rod (18) is vertically aligned with the extrusion plate (51); The rotating shaft (24) is rotatably mounted in the regulating valve body (21), a slot (19) is provided on the fixing plate (11), the fixing plate (11) is connected to the regulating valve body (21) and the round cover (14), an adjusting paddle (33) is fixedly mounted on the double-headed latch (32), the adjusting paddle (33) is slidably mounted in the fixing block (34), the fixing block (34) is slidably mounted on the side end of the fixing plate (11), and the side end of the extrusion plate (51) is an inclined surface; The adjusting block (41) is fixedly mounted with a circular frame (43), the circular frame (43) is penetrated by a round head rod (45) which is slidably mounted, the round head rod (45) is fixedly mounted with a limiting circular plate (46), the round head rod (45) is sleeved with a spring (47), the spring (47) is fixedly mounted between the limiting circular plate (46) and the inner wall of the circular frame (43), and the round head rod (45) is slidably mounted in a slot (19) provided in the fixed plate (11).

2. A discharge regulating valve for polyanhydride according to claim 1, characterized in that: Two T-shaped sliding grooves (61) are provided on both side ends of the fixing plate (11); The first friction block (17) and the second friction block (25) are both conical in shape, and the high friction surfaces of the first friction block (17) and the second friction block (25) are in contact with each other.

3. A discharge regulating valve for polyanhydride according to claim 2, characterized in that: A second T-shaped sliding block (53) is fixedly mounted on the L-shaped rod (52), and the second T-shaped sliding block (53) is slidably mounted in a T-shaped sliding groove (61) provided on the fixed plate (11).

4. A discharge regulating valve for polyanhydride according to claim 3, characterized in that: A first T-shaped sliding block (44) is fixedly mounted on the adjusting block (41); The first T-shaped sliding block (44) is slidably mounted in a T-shaped sliding groove (61) provided on the fixing plate (11).

5. A discharge regulating valve for polyanhydride according to claim 4, characterized in that: A first motor (12) is fixedly mounted on the fixing plate (11), and a threaded rod (13) is fixedly mounted on the lower end of the first motor (12) via an output shaft; The threaded rod (13) is installed in the valve baffle (31) by threading.

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