Quantitative discharging device for production of proneilol hydrochloride oral liquid

Abstract

The invention discloses a quantitative blanking device for production of a Phenolol hydrochloride oral liquid, and relates to the technical field of blanking devices.The quantitative blanking device comprises a workbench assembly, a filling assembly is arranged on one side of the workbench assembly, a cavity is formed in the middle of the workbench assembly, cavity grooves are formed in the two sides of the cavity, and the cavity communicates with the two cavity grooves; one side of the cavity is slidably connected with a plurality of limiting assemblies. A first motor is arranged in the workbench assembly, an inner cavity of one group of cavity grooves is rotationally connected with a first lead screw, the first lead screw is connected with the output end of the first motor, an inner cavity of the other group of cavity grooves is fixedly connected with a long rod, and the limiting assembly comprises a concave block slidably connected to one side of the cavity; according to the arrangement, a bottle needing to be filled can be limited and clamped through the limiting assembly, the effect of stabilizing the bottle is achieved, and therefore the problem that the bottle is prone to being knocked down by impact force when directly subjected to discharging and filling is solved, waste caused by pouring of oral liquid is avoided, and the filling efficiency of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of feeding devices, in particular to a quantitative feeding device for producing propranolol hydrochloride oral solution. Background Art

[0002] With the development of industrial technology, human beings pay more and more attention to people's livelihood and health, and the pharmaceutical industry has become the basic industry of people's livelihood and health. Propranolol hydrochloride oral solution is a domestic oral solution specially used for the treatment of infantile hemangioma. This product is a colorless to slightly orange-yellow clear viscous liquid with an aromatic smell. In order to reduce the risk of hypoglycemia in children, it must be administered with or after meals. In the production and processing of propranolol hydrochloride oral solution, it is necessary to fill the propranolol hydrochloride oral solution prepared in the preparation device into a special vial for imported oral liquid, so as to facilitate the subsequent sale of the oral liquid in small bottles on the market. While manual filling work is time-consuming, it will also cause inaccurate filling of the amount of liquid medicine. Now a quantitative feeding device for oral liquid production is needed to assist people in the filling of oral liquid.

[0003] After searching, the patent announcement number CN207523983U discloses an oral liquid filling device with quantitative function. The utility model can realize the integrated functions of oral liquid mixing, filtering and quantitative packaging. The introduction of the filter can filter out impurities in the oral liquid, and can also realize the quantitative packaging of bottled oral liquid, thereby eliminating the need for manual quantitative packaging and greatly improving the filling speed;

[0004] It can be seen that the above patent has the following shortcomings: during the oral liquid filling device's feeding process, the traditional filling equipment lacks the function of limiting and stabilizing the loaded small bottles, and when affected by external environmental forces during the filling and feeding process, the small bottles are easily tipped over, resulting in waste of the discharged oral liquid, affecting the filling and feeding efficiency of the device, and failing to meet the needs of more customers.

[0005] In view of the above problems, a quantitative feeding device for the production of propranolol hydrochloride oral solution is proposed. Summary of the invention

[0006] The object of the present invention is to provide a quantitative feeding device for the production of propranolol hydrochloride oral liquid. The device is used to work, thereby solving the problem that in the oral liquid filling device in the background technology, during the oral liquid feeding process, the traditional filling equipment lacks the function of limiting and stabilizing the loaded small bottles, and when the small bottles are affected by external forces in the environment during the filling and feeding process, the small bottles are easily tipped over, resulting in waste of the fed oral liquid, affecting the filling and feeding efficiency of the device, and failing to meet the needs of more customers.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a quantitative feeding device for the production of propranolol hydrochloride oral solution, comprising a workbench assembly, a filling assembly is arranged on one side of the workbench assembly, a cavity is arranged in the middle of the workbench assembly, cavities are arranged on both sides of the cavity, the cavity is communicated with two groups of cavities, a limiting assembly is slidably connected to one side of the cavity, and the limiting assembly is provided with multiple groups;

[0008] Preferably, a first motor is arranged inside the workbench assembly, a first screw rod is rotatably connected to the inner cavity of one group of the cavities, and the first screw rod is connected to the output end of the first motor, and a long rod is fixedly connected to the inner cavity of another group of the cavities;

[0009] Preferably, the limit assembly comprises a concave block slidably connected to one side of the cavity, one side of the concave block is slidably connected to the outer periphery of the long rod, and the other side of the concave block is threadedly connected to the outer periphery of the first screw rod; a second motor is arranged inside the concave block, and the inner cavity of the concave block is rotatably connected to the positive and negative threaded screw rods, one side of the concave block is slidably connected to a connecting plate, two groups of connecting plates are arranged, a clamping block is arranged on one side of the connecting plate, and three groups of clamping blocks are arranged;

[0010] Preferably, the filling assembly comprises a supporting platen fixedly mounted on the top of the workbench assembly, a material storage tank is arranged above the supporting platen, a liquid pump is arranged on one side of the material storage tank, a material discharge component is arranged at the lower end of the supporting platen, the material discharge component comprises a hydraulic cylinder fixedly mounted on the bottom wall of the supporting platen, and the hydraulic cylinder is provided with two groups, a material passage cavity box is arranged on one side of the hydraulic cylinder, and the material passage cavity box is connected to the output ends of the two groups of hydraulic cylinders;

[0011] Preferably, the input end of the liquid pump is connected to the material storage tank through a connecting pipe, and the output end of the liquid pump is connected to the material passage cavity box through a long hose.

[0012] Preferably, the limiting assembly further comprises a placement groove arranged in the middle of the concave block, and the placement groove is provided in three groups.

[0013] Preferably, an active roller is rotatably connected to the inner cavity of the concave block, and the active roller is connected to the output end of the second motor, and a passive roller is fixedly connected to the middle of the positive and negative screw rods.

[0014] Preferably, a belt is sleeved between the passive roller and the active roller, and a movable plate is fixedly connected to the bottom of the two groups of connecting plates.

[0015] Preferably, one side of the movable plate extends into the interior of the concave block, and one side of the movable plate is threadedly connected to the outer periphery of the positive and negative threaded screws, and the movable plate is slidably connected to one side of the concave block.

[0016] Preferably, a feeding pipe is provided at the bottom of the feeding cavity box, and three groups of the feeding pipes are provided, and one end of the three groups of feeding pipes is provided with a material dividing box.

[0017] Preferably, a connecting cavity box is provided at the bottom of the distributing box, and a filling head component is provided on one side of the connecting cavity box.

[0018] Preferably, an empty slot is provided on one side of the connecting cavity box, a quantity control plate is slidably connected to the inner cavity of the material distribution box, the connecting cavity box is communicated with the material distribution box, and the bottom surface of the quantity control plate is on the same horizontal line as the top surface of the empty slot.

[0019] Preferably, an automatic telescopic rod is provided inside the material distribution box, and the quantity control plate is connected to the output end of the automatic telescopic rod.

[0020] Preferably, the amount control plate matches the empty slot, and the material passage cavity box, the material passage pipe, the material distribution box, the connecting cavity box and the filling head component are interconnected.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The invention proposes a quantitative feeding device for producing propranolol hydrochloride oral liquid. When the device is used, the user pre-fills the prepared propranolol hydrochloride oral liquid into the storage tank, and then uses the feeding component to carry out the feeding work. Each set of limiting components is used to place the empty bottles specially loaded with oral liquid, and the bottom of each small bottle is placed in the placement groove. Then the user turns on the second motor, and the second motor drives the active roller to rotate forward, and then the two sets of opposite connecting plates move closer to each other until the two sides of the middle empty bottle are limitedly clamped by the two sets of opposite clamping blocks, so as to stabilize the empty bottle. Each set of limiting components can fix three To fill the empty bottles, the user turns on the first motor, and the first motor drives the first screw rod to rotate forward, and then the first screw rod drives the concave block and the empty bottles to move horizontally forward along the cavity, until a set of limit assemblies moves to the bottom of the filling assembly, and the three groups of empty bottles correspond to the bottom of the three groups of filling head components, respectively, so as to facilitate the subsequent use of the filling head components to unload and fill the empty bottles; this arrangement uses the limit assemblies to limit and clamp the bottles to be filled, which has a role in stabilizing the bottles, thereby solving the problem that the bottles are easily knocked down by impact force when they are directly unloaded and filled, avoiding the waste of oral liquid caused by dumping, and improving the filling efficiency of the device.

[0023] 2. The invention proposes a quantitative feeding device for the production of propranolol hydrochloride oral solution. When a set of limit components moves to the bottom of the filling component, and the three groups of empty bottles correspond to the bottom of the three groups of filling head components, the liquid pump working mode can be turned on at this time. The liquid pump will transport the oral liquid in the storage tank to the feeding cavity box through the pipeline. The user can control the telescopic movement of the two groups of hydraulic cylinders to control the height of the feeding cavity box, which makes it convenient for the user to adjust the distance between the filling head component and the empty bottle, so that the discharge ports of the three groups of filling head components extend into the opening positions corresponding to the three groups of empty bottles. At the same time, the oral liquid entering the feeding cavity box will enter the inner cavity of the three groups of feeding boxes. The oral liquid is finally filled into the empty bottle through the opening of the filling head component. The user can also control the discharging speed of the filling head component, which can make the automatic telescopic rod perform telescopic movement, and the automatic telescopic rod drives the control plate to move left or right. At this time, the control plate is close to one side of the empty slot and moves horizontally to the left or right. The relative position between the control plate and the empty slot will determine the opening and closing degree of the empty slot, and then the amount of oral liquid discharged from the empty slot can be controlled, so that the user can control and adjust the discharging speed of the oral liquid from the filling head component. When the empty bottles on a group of limit assemblies are filled, the user turns off the liquid pump working mode, and uses the automatic telescopic rod to move the control plate to the position of completely covering the empty slot opening, so that the filling head component does not discharge, and the material passage cavity box is lifted and raised to make the filling head component away from the empty bottle.

[0024] 3. Subsequently, the first motor is restarted, and the first motor continues to drive the first screw to rotate forward. The first screw will drive each group of concave blocks to move forward horizontally. At this time, the limit assembly directly below the filling assembly moves away from the filling assembly until it moves to the end of the workbench assembly. At this time, the second motor is restarted, and the second motor drives the active roller and the passive roller to reverse, and the positive and negative screws rotate in the opposite direction. Then, the two groups of moving plates move away from each other, and the clamping blocks of the two adjacent groups move away from each other. Multiple groups of clamping blocks give up holding the empty bottles. The clamping work makes it easy for the operator to remove the bottles that have been filled with oral liquid on this group of limiting components; at this time, the empty bottles on the next group of limiting components will move to the bottom of the filling component, and repeat the above filling work, and use the filling component to unload the empty bottles below it until the empty bottles placed on all the limiting components have completed the filling work. This setting is convenient for the user to control the unloading speed of the oral liquid through the unloading component, and the unloading equipment is conducive to the controlled unloading of the oral liquid, so that the discharge volume of the device can be controlled, thereby improving the application scope of the unloading device and satisfying the use of more customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2It is a structural diagram of the workbench assembly and the limit assembly of the present invention;

[0027] Figure 3 It is a structural diagram of the limiting component of the present invention;

[0028] Figure 4 It is a structural diagram of the clamping drive component of the present invention;

[0029] Figure 5 It is a structural diagram of the filling component of the present invention;

[0030] Figure 6 This is a disassembled structural diagram of the filling component of the present invention;

[0031] Figure 7 It is the overall structure diagram of the blanking component of the present invention;

[0032] Figure 8 It is a structural diagram of the material distribution and filling components of the present invention;

[0033] Fig. 9 It is a structural diagram of the quantity control component of the present invention;

[0034] Fig.10 This is a separate structural diagram of the volume control plate and the connection cavity box of the present invention.

[0035] In the figure: 1. workbench assembly; 11. cavity; 12. cavity slot; 13. first motor; 14. first screw rod; 15. long rod; 2. filling assembly; 21. support table; 22. storage tank; 23. unloading component; 231. hydraulic cylinder; 232. material cavity box; 233. material distribution box; 234. material passage pipe; 235. filling head component; 236. connecting cavity box; 237. empty slot; 238. quantity control plate; 239. automatic telescopic rod; 24. liquid pump; 3. limit assembly; 31. concave block; 32. placement slot; 33. connecting plate; 34. clamping block; 35. moving plate; 36. positive and negative screw rods; 37. passive roller; 38. active roller; 39. second motor; 391. belt. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0038] Combination Figure 1-Figure 10A quantitative feeding device for the production of propranolol hydrochloride oral solution, comprising a workbench component 1, a filling component 2 is arranged on one side of the workbench component 1, a cavity 11 is arranged in the middle of the workbench component 1, and cavities 12 are arranged on both sides of the cavity 11, the cavity 11 and two groups of cavity grooves 12 are communicated with each other, and a limiting component 3 is slidably connected to one side of the cavity 11, and the limiting component 3 is provided with multiple groups; a first motor 13 is arranged inside the workbench component 1, and a first screw rod 14 is rotatably connected to the inner cavity of a group of cavity grooves 12, and the first screw rod 14 is connected to the output end of the first motor 13 Then, another group of cavity grooves 12 is fixedly connected to the inner cavity of the long rod 15, and the limiting assembly 3 includes a concave block 31 slidably connected to one side of the cavity 11, one side of the concave block 31 is slidably connected to the outer periphery of the long rod 15, and the other side of the concave block 31 is threadedly connected to the outer periphery of the first screw rod 14; a second motor 39 is arranged inside the concave block 31, and the inner cavity of the concave block 31 is rotatably connected to the positive and negative threaded screw rods 36, and one side of the concave block 31 is slidably connected to a connecting plate 33, two groups of connecting plates 33 are arranged, a clamping block 34 is arranged on one side of the connecting plate 33, and three groups of clamping blocks 34 are arranged.

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Embodiment 1:

[0041] Combination Figure 1-Figure 6 The limiting assembly 3 also includes a placement groove 32 arranged in the middle of the concave block 31, and the placement groove 32 is provided with three groups. An active roller 38 is rotatably connected to the inner cavity of the concave block 31, and the active roller 38 is connected to the output end of the second motor 39. A passive roller 37 is fixedly connected to the middle of the positive and negative screw rods 36, and a belt 391 is sleeved between the passive roller 37 and the active roller 38. The bottoms of the two groups of connecting plates 33 are fixedly connected to movable plates 35, one side of the movable plates 35 extends to the inside of the concave block 31, and one side of the movable plate 35 is threadedly connected to the outer periphery of the positive and negative screw rods 36, and the movable plate 35 is slidably connected to one side of the concave block 31.

[0042] Embodiment 2:

[0043] Combination Figure 1-Figure 2 and Figure 5-10The filling assembly 2 includes a supporting platen 21 fixedly mounted on the top of the workbench assembly 1, a storage tank 22 is arranged above the supporting platen 21, a liquid pump 24 is arranged on one side of the storage tank 22, a material discharge component 23 is arranged at the lower end of the supporting platen 21, and the material discharge component 23 includes a hydraulic cylinder 231 fixedly mounted on the bottom wall of the supporting platen 21, and the hydraulic cylinder 231 is provided with two groups, a material passage cavity box 232 is arranged on one side of the hydraulic cylinder 231, and the material passage cavity box 232 is connected to the output ends of the two groups of hydraulic cylinders 231; the input end of the liquid pump 24 is connected to the storage tank 22 through a connecting pipe, and the output end of the liquid pump 24 is connected to the material passage cavity box 232 through a long hose, and a material passage pipe 234 is arranged at the bottom of the material passage cavity box 232, and the material passage pipe 234 is provided with three groups, A material distribution box 233 is provided at one end of each of the three groups of material passing pipes 234, a connecting cavity box 236 is provided at the bottom of the material distribution box 233, and a filling head component 235 is provided on one side of the connecting cavity box 236, and an empty slot 237 is provided on one side of the connecting cavity box 236. A quantity control plate 238 is slidably connected to the inner cavity of the material distribution box 233, the connecting cavity box 236 is connected to the material distribution box 233, and the bottom surface of the quantity control plate 238 and the top surface of the empty slot 237 are on the same horizontal line, an automatic telescopic rod 239 is provided inside the material distribution box 233, and the quantity control plate 238 is connected to the output end of the automatic telescopic rod 239, and the quantity control plate 238 matches the empty slot 237, and the material cavity box 232, the material passing pipe 234, the material distribution box 233, the connecting cavity box 236 and the filling head component 235 are connected to each other.

[0044] In summary: the invention proposes a quantitative feeding device for the production of propranolol hydrochloride oral liquid. During the oral liquid filling process, the traditional filling equipment lacks the function of limiting and stabilizing the loaded small bottles. When the small bottles are affected by external environmental forces during the filling and feeding process, they are easily tipped over, resulting in waste of the discharged oral liquid and failing to meet the needs of more customers. When the device of the invention is in use, the user pre-fills the prepared propranolol hydrochloride oral liquid into the storage tank 22, and then uses the feeding component 23 to carry out the feeding work. Each set of limiting components 3 is used to place empty bottles specially loaded with oral liquid, and the bottom of each small bottle is placed in the placement groove 32. Then the user turns on the second motor 39, and the second motor 39 drives the active roller 38 to rotate forward. Due to the transmission of the belt 391, the passive roller 37 and the forward and reverse screw rods 36 rotate forward, and then the two sets of movable plates 35 move closer to each other. , and then the two groups of connecting plates 33 on the opposite sides move closer to each other until the two groups of opposite clamping blocks 34 are used to limit and clamp the two sides of the middle empty bottle, so as to stabilize the empty bottle. Each group of limiting components 3 can fix three groups of empty bottles. The user turns on the first motor 13, and the first motor 13 drives the first screw rod 14 to rotate forward, and then the first screw rod 14 drives the concave block 31 and the empty bottle to move horizontally forward along the cavity 11, until one group of limiting components 3 moves to the right below the filling component 2, and the three groups of empty bottles just correspond to the bottom of the three groups of filling head components 235, so as to facilitate the subsequent use of the filling head components 235 to carry out the empty bottle feeding and filling work; this setting can use the limiting component 3 to limit and clamp the bottles that need to be filled, which plays a role in stabilizing the bottles, thereby solving the problem that the bottles are easily knocked down by the impact force when they are directly fed and filled, avoiding the waste caused by the dumping of oral liquid, and improving the filling efficiency of the device;

[0045] When one set of limit components 3 moves to the right below the filling component 2, and the three groups of empty bottles correspond to the three groups of filling head components 235 respectively, the working mode of the liquid pump 24 can be turned on at this time, and the liquid pump 24 will transport the oral liquid in the storage tank 22 to the material passage cavity box 232 through the pipeline. The user can control the two groups of hydraulic cylinders 231 to perform telescopic movements, thereby controlling the height of the material passage cavity box 232, so that the user can adjust the distance between the filling head component 235 and the empty bottles, so that the discharge ports of the three groups of filling head components 235 extend into the corresponding openings of the three groups of empty bottles. At the same time, the oral liquid entering the material passage cavity box 232 will enter the inner cavity of the three groups of material boxes 233, and the oral liquid will finally pass through the filling head component 235. The user can also control the discharging speed of the filling head component 235, which can make the automatic telescopic rod 239 telescopic movement, and the automatic telescopic rod 239 drives the control plate 238 to move left or right. At this time, the control plate 238 is close to one side of the empty slot 237 and moves horizontally to the left or right. The relative position between the control plate 238 and the empty slot 237 will determine the opening and closing degree of the empty slot 237, and then the amount of oral liquid discharged from the empty slot 237 can be controlled, so as to facilitate the user to control and adjust the discharging speed of the oral liquid from the filling head component 235. When the empty bottles on a group of limit components 3 are filled, the user turns off the working mode of the liquid pump 24, and uses the automatic telescopic rod 239 to move the control plate 238 moves to a position completely covering the opening of the empty slot 237, so that the filling head component 235 does not discharge materials, and the material passage cavity box 232 is lifted and raised, so that the filling head component 235 is away from the empty bottle, and then the first motor 13 is restarted, and the first motor 13 continues to drive the first screw rod 14 to rotate forward, and the first screw rod 14 will drive each group of concave blocks 31 to move forward horizontally. At this time, the limit assembly 3 that is located directly below the filling assembly 2 moves in the direction away from the filling assembly 2 until it moves to the end side of the workbench assembly 1, and at this time the second motor 39 is restarted, and the second motor 39 drives the active roller 38 and the passive roller 37 to reverse, and the forward and reverse screw rods 36 rotate in the opposite direction, so that the two groups of moving plates 3 5 moves away from each other, and the clamping blocks 34 of the two adjacent groups move away from each other, and the multiple groups of clamping blocks 34 give up the clamping work of the empty bottles, which is convenient for the operator to remove the bottles that have been filled with oral liquid on this group of limiting components 3; at this time, the empty bottles on the next group of limiting components 3 will move to the bottom of the filling component 2, repeat the above filling work, and use the filling component 2 to unload the empty bottles below it until the empty bottles placed on all the limiting components 3 are filled. This arrangement is convenient for the user to control the unloading speed of the oral liquid through the unloading component 23, and the unloading equipment is conducive to the controlled unloading of the oral liquid, so that the discharge amount of the device is controlled, the application range of the unloading device is improved, and the use of more customers is met.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative feeding device for producing propranolol hydrochloride oral solution, comprising a workbench assembly (1), wherein a filling assembly (2) is arranged on one side of the workbench assembly (1), characterized in that: A cavity (11) is provided in the middle of the workbench component (1), and cavity grooves (12) are provided on both sides of the cavity (11), the cavity (11) and two groups of cavity grooves (12) are communicated with each other, and a limit component (3) is slidably connected to one side of the cavity (11), and the limit components (3) are provided in multiple groups; A first motor (13) is arranged inside the workbench assembly (1); a first screw rod (14) is rotatably connected to the inner cavity of one group of the cavities (12), and the first screw rod (14) is connected to the output end of the first motor (13); and a long rod (15) is fixedly connected to the inner cavity of another group of the cavities (12); The limiting assembly (3) comprises a concave block (31) slidably connected to one side of the cavity (11), one side of the concave block (31) is slidably connected to the outer periphery of the long rod (15), and the other side of the concave block (31) is threadedly connected to the outer periphery of the first screw rod (14); a second motor (39) is arranged inside the concave block (31), the inner cavity of the concave block (31) is rotatably connected to a positive and negative threaded screw rod (36), one side of the concave block (31) is slidably connected to a connecting plate (33), two groups of the connecting plates (33) are arranged, one side of the connecting plate (33) is provided with a clamping block (34), and three groups of the clamping blocks (34) are arranged; The filling assembly (2) comprises a supporting plate (21) fixedly mounted on the top of the workbench assembly (1), a material storage tank (22) is arranged above the supporting plate (21), a liquid pump (24) is arranged on one side of the material storage tank (22), a material discharge component (23) is arranged at the lower end of the supporting plate (21), the material discharge component (23) comprises a hydraulic cylinder (231) fixedly mounted on the bottom wall of the supporting plate (21), and two groups of the hydraulic cylinder (231) are arranged, a material passage cavity box (232) is arranged on one side of the hydraulic cylinder (231), and the material passage cavity box (232) is connected to the output ends of the two groups of the hydraulic cylinders (231); The input end of the liquid pump (24) is connected to the material storage tank (22) through a connecting pipe, and the output end of the liquid pump (24) is connected to the material passage chamber box (232) through a long hose.

2. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 1, characterized in that: The limiting assembly (3) further comprises a placement groove (32) arranged in the middle of the concave block (31), and the placement groove (32) is provided in three groups.

3. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 2, characterized in that: The inner cavity of the concave block (31) is rotatably connected to an active roller (38), and the active roller (38) is connected to the output end of the second motor (39). The middle of the forward and reverse screw rods (36) is fixedly connected to a passive roller (37).

4. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 3, characterized in that: A belt (391) is sleeved between the passive roller (37) and the active roller (38), and a movable plate (35) is fixedly connected to the bottom of the two groups of connecting plates (33).

5. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 4, characterized in that: One side of the movable plate (35) extends into the interior of the concave block (31), and one side of the movable plate (35) is threadedly connected to the outer periphery of the positive and negative threaded rod (36), and the movable plate (35) is slidably connected to one side of the concave block (31).

6. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 5, characterized in that: A material passing pipe (234) is arranged at the bottom of the material passing cavity box (232), and three groups of the material passing pipes (234) are arranged, and a material distribution box (233) is arranged at one end of the three groups of material passing pipes (234).

7. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 6, characterized in that: A connecting cavity box (236) is provided at the bottom of the material distribution box (233), and a filling head component (235) is provided on one side of the connecting cavity box (236).

8. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 7, characterized in that: A hollow groove (237) is provided on one side of the connecting cavity box (236); a quantity control plate (238) is slidably connected to the inner cavity of the material distribution box (233); the connecting cavity box (236) is communicated with the material distribution box (233); and the bottom surface of the quantity control plate (238) and the top surface of the hollow groove (237) are on the same horizontal line.

9. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 8, characterized in that: An automatic telescopic rod (239) is arranged inside the material distribution box (233), and the quantity control plate (238) is connected to the output end of the automatic telescopic rod (239).

10. A quantitative feeding device for producing propranolol hydrochloride oral solution according to claim 9, characterized in that: The quantity control plate (238) matches the empty slot (237), and the material passage cavity box (232), the material passage pipe (234), the material distribution box (233), the connecting cavity box (236) and the filling head component (235) are interconnected.

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