CN221068555U

CN221068555U - One-step filling system

Info

Publication number: CN221068555U
Application number: CN202323127550.3U
Authority: CN
Inventors: 江天乐; 叶封; 高国栋; 孙世亮; 华浪
Original assignee: Shanghai Shenghua Aerosol Machinery Co ltd
Current assignee: Shanghai Shenghua Aerosol Machinery Co ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-06-04
Anticipated expiration: 2033-11-20

Abstract

The utility model relates to the technical field of filling, and discloses a one-step filling system. The filling system of the present utility model comprises: mix jar, measuring cylinder, hydraulic pressure diaphragm pump, pushing away material cylinder, filling stub bar, pressure jar cylinder, feed control valve and reflux control valve, mix the jar and be connected with the measuring cylinder through first pipeline, hydraulic pressure diaphragm pump and feed control valve set up on first pipeline, the measuring cylinder is connected with the filling stub bar, pushing away the material cylinder setting on the measuring cylinder, the filling stub bar is connected with the mix jar through the third pipeline, reflux control valve sets up on the third pipeline, the filling stub bar is connected with pressure jar cylinder. The filling system is controlled by the controller, and when the filling system is not used for filling, feed liquid flows back into the mixing tank after passing through the metering cylinder and the filling head; when filling, the tank pressing cylinder pushes the filling head to press the aerosol tank, the material pushing cylinder extrudes and pushes the material liquid in the metering cylinder into the aerosol tank, one-step filling of the mixed material liquid is completed, and the production efficiency is improved.

Description

One-step filling system

Technical Field

The embodiment of the utility model relates to the technical field of filling, in particular to a one-step filling system.

Background

A medical medicine solution is prepared through mixing the particles of medicine powder in tetrafluoroethane as solvent by using tetrafluoroethane refrigerant (134A), and loading the mixture in aerosol tank.

The inventors of the present application found that, since the powder particles are insoluble in tetrafluoroethane, in order to prevent precipitation of the powder particles during the filling process, two-step filling is currently adopted, i.e., the powder particles are first filled with alcohol or purified water as a solvent, then sealed, and then filled with tetrafluoroethane refrigerant (134A). The method has the advantages of complicated process, more working procedures and low production efficiency.

Disclosure of utility model

The utility model aims to provide a one-step filling system which solves the problems in the background art.

The embodiment of the utility model provides a one-step filling system, which comprises the following steps: the device comprises a mixing tank, a metering cylinder, a hydraulic diaphragm pump, a pushing cylinder, a filling head, a tank pressing cylinder, a feeding control valve, a backflow control valve and a controller;

the mixing tank is fixedly arranged and used for storing feed liquid;

the mixing tank is connected with the metering cylinder through a first pipeline, the hydraulic diaphragm pump and the feeding control valve are arranged on the first pipeline, the hydraulic diaphragm pump is used for conveying feed liquid into the metering cylinder, and the feeding control valve is used for controlling the on-off of the first pipeline;

The filling head is provided with an inner cavity, a feeding port, a canning port and a backflow port, and the feeding port, the canning port and the backflow port are respectively communicated with the inner cavity;

the outlet of the metering cylinder is connected with the feed inlet through a second pipeline;

The pushing cylinder is arranged on the metering cylinder, and a piston rod of the pushing cylinder extends into a cylinder cavity of the metering cylinder;

The reflux port is connected with the mixing tank through a third pipeline, and the reflux control valve is arranged on the third pipeline and used for controlling the on-off of the third pipeline;

The filling head is used for driving the filling head to lift, the top end of the aerosol can stretches into the can opening when the filling head descends, the inner cavity is communicated with the aerosol can, and the pushing cylinder piston rod is used for pressing feed liquid into the aerosol can;

The hydraulic diaphragm pump, the pushing cylinder, the pressing cylinder, the feeding control valve and the backflow control valve are respectively and electrically connected with the controller.

Based on the scheme, the one-step filling system comprises a mixing tank, a metering cylinder, a hydraulic diaphragm pump, a pushing cylinder, a filling head, a tank pressing cylinder, a feeding control valve, a backflow control valve and a controller, wherein the mixing tank is connected with the metering cylinder through a first pipeline, the hydraulic diaphragm pump and the feeding control valve are arranged on the first pipeline, the metering cylinder is connected with the filling head through a second pipeline, a piston rod of the pushing cylinder extends into a cylinder cavity of the metering cylinder, the filling head is connected with the mixing tank through a third pipeline, the backflow control valve is arranged on the third pipeline, and the filling head is connected with a piston rod of the tank pressing cylinder. The one-step filling system is controlled by a controller, a hydraulic diaphragm pump pressurizes mixed feed liquid to a pressure of 12-14 kg, when the mixed feed liquid is in a non-filling state, a feed control valve and a reflux control valve are in an open state, feed liquid is conveyed into a metering cylinder after passing through the feed control valve, flows out to a filling head through an outlet of the metering cylinder, and then flows back into a mixing tank through a third pipeline and the reflux control valve; when the liquid filling device is in a filling state, the reflux control valve and the feeding control valve are sequentially closed, meanwhile, the filling head is pushed by the tank pressing cylinder to press the aerosol tank, so that the tank opening of the filling head is in butt joint communication with the aerosol tank, the liquid in the metering cylinder is extruded and pushed into the aerosol tank by the descending of the piston rod of the pushing cylinder, then the tank pressing cylinder and the pushing cylinder return, the feeding control valve and the reflux control valve are opened, and one-step filling of mixed liquid is completed. Under the action of the hydraulic diaphragm pump, the feed liquid always circularly flows and is only stopped at one moment of filling, so that powder particles cannot be precipitated, tetrafluoroethane and powder particles are filled at the same time, the filling process is reduced, and the production efficiency is improved.

In one possible solution, the filling head comprises: the filling nozzle, the compression cylinder, the ejector rod and the spring;

The filling nozzle is provided with the inner cavity;

the compaction cylinder is arranged on the filling nozzle and is connected with a piston rod of the pressure tank cylinder;

The ejector rod is arranged in the inner cavity and connected with a piston rod of the compression cylinder, and is provided with a sealing head for sealing the canning opening;

The spring is sleeved on a piston rod of the compression cylinder and is respectively propped against the piston of the compression cylinder and the sealing top cover of the compression cylinder.

In one possible solution, the piston and the sealing top cover of the compression cylinder are provided with a first accommodation groove for embedding the spring.

In one possible implementation, the method further includes: a final signal detection component;

The terminal signal detection assembly includes: a signaling lever, a signaling spring, a signaling rod and a signaling sensor;

The signal transmission lever is rotatably arranged on the metering cylinder;

the signaling spring is arranged on the metering cylinder and props against the signaling lever;

The signal transmission rod is slidably arranged on the pushing cylinder in a penetrating manner, the bottom end of the signal transmission rod is propped against the signal transmission lever, and the signal transmission rod is used for enabling the signal transmission lever to rotate when propping against a piston of the pushing cylinder;

The signal sending sensor is arranged on the pushing cylinder and is electrically connected with the controller, and the signal sending sensor is used for sending a signal to the controller when sensing that the signal sending lever reaches a preset position.

In one possible solution, the metering cylinder and the signaling lever are both provided with a second receiving groove for the signaling spring to be inserted.

In one possible solution, the pushing cylinder is provided with a stroke adjustment assembly for adjusting the filling dose;

the stroke adjustment assembly includes: the device comprises a first bevel gear, a second bevel gear and an adjusting screw rod;

a limiting disc is arranged at the bottom end of the adjusting screw rod;

the adjusting screw rod is arranged on the pushing cylinder in a penetrating way, and the limiting disc is positioned in a cylinder cavity of the pushing cylinder and used for propping against a piston of the pushing cylinder;

The first bevel gear and the second bevel gear are respectively arranged on the pushing cylinder and are meshed with each other;

The gear shaft of the first bevel gear is provided with a handle, and the gear shaft of the second bevel gear is meshed with the adjusting screw rod.

In one possible scheme, stirring blades are arranged in the mixing tank;

The stirring blade is in transmission connection with an external motor through a connecting shaft.

In one possible solution, the feed control valve and the return control valve are both diaphragm valves.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic illustration of a one-step filling system in an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A in an embodiment of the utility model;

FIG. 3 is an enlarged view of a portion of FIG. 1 in an embodiment of the utility model;

FIG. 4 is another enlarged view of a portion of FIG. 1 in an embodiment of the utility model;

FIG. 5 is a schematic view of a filling head in an embodiment of the utility model;

fig. 6 is a schematic diagram of connection between a filling head and a canister-pressing cylinder in an embodiment of the utility model.

Reference numerals in the drawings:

1. A mixing tank; 2. a metering cylinder; 3. filling a material head; 301. an inner cavity; 302. a feed inlet; 303. a canning opening; 304. a return port; 305. a first accommodating groove; 31. a filling nozzle; 32. a compacting cylinder; 33. a push rod; 331. a sealing head; 34. a spring; 35. a diaphragm sheet; 41. a pushing cylinder; 411. a pushing cylinder piston; 412. a pushing cylinder piston rod; 42. a cylinder for pressing the tank; 421. a cylinder piston rod of the pressure tank; 51. a hydraulic diaphragm pump; 52. a feed control valve; 53. a reflux control valve; 61. a first pipeline; 62. a second pipeline; 71. a signaling lever; 72. a signaling spring; 73. a signaling rod; 74. a signaling sensor; 81. a first bevel gear; 811. a handle; 82. a second bevel gear; 83. adjusting a screw rod; 831. a limiting disc; 84. a protective cover; 100. an aerosol canister.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; either directly, or indirectly, through intermediaries, may be in communication with each other, or may be in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The technical scheme of the utility model is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

As described in the background of the application, a medical drug solution is prepared by mixing powder particles in tetrafluoroethane using a tetrafluoroethane refrigerant (134A) as a solvent, and then filling and storing the mixed liquid.

The inventors of the present application found that, since the powder particles are insoluble in tetrafluoroethane, in order to prevent precipitation of the powder particles during the filling process, the mixed feed liquid is currently filled in a two-step method, i.e., the powder particles are first filled with alcohol or purified water as a solvent, and then sealed, and then filled with tetrafluoroethane refrigerant (134A). The method has the advantages of complicated process, more working procedures and low production efficiency.

In order to solve the above problems, the present inventors have proposed the technical solution of the present application, and specific embodiments are as follows:

Fig. 1 is a schematic view of a one-step filling system according to an embodiment of the present utility model, fig. 2 is an enlarged view at a in fig. 1 according to an embodiment of the present utility model, fig. 3 is a partially enlarged view in fig. 1 according to an embodiment of the present utility model, fig. 4 is another partially enlarged view in fig. 1 according to an embodiment of the present utility model, fig. 5 is a schematic view of a filling head according to an embodiment of the present utility model, and fig. 6 is a schematic view of a connection between a filling head and a canister cylinder according to an embodiment of the present utility model.

As shown in fig. 1 to 6, the one-step filling system of the present embodiment includes: a compounding tank 1, a metering cylinder 2, a filling head 3, a pushing cylinder 41, a pressing cylinder 42, a hydraulic diaphragm pump 51, a feed control valve 52, a backflow control valve 53 and a controller.

The mixing tank 1 is fixedly arranged, and the mixed liquid of the tetrafluoroethane refrigerant (134A) and the medicinal powder particles is placed in the closed mixing tank 1.

The compounding tank 1 is connected and communicated with an inlet of the metering cylinder 2 through a first pipeline 61, a hydraulic diaphragm pump 51 and a feed control valve 52 are arranged on the first pipeline 61, and the feed control valve 52 is positioned between the hydraulic diaphragm pump 51 and the metering cylinder 2. The hydraulic diaphragm pump 51 pressurizes and conveys the feed liquid in the mixing tank 1 into the cylinder cavity of the metering cylinder 2, and the feed control valve 52 is used for controlling the on-off of the first pipeline 61.

An inner cavity 301 is arranged in the filling head 3, a feed inlet 302, a canning inlet 303 and a backflow inlet 304 are arranged on the side wall of the filling head 3, and the feed inlet 302, the canning inlet 303 and the backflow inlet 304 are respectively communicated with the inner cavity 301 of the filling head 3.

The outlet of the metering cylinder 2 is connected via a second line 62 to a feed inlet 302 of the filling head 3.

The pushing cylinder 41 is arranged on a cylinder seat of the metering cylinder 2, and a pushing cylinder piston rod 412 of the pushing cylinder 41 extends into a cylinder cavity of the metering cylinder 2.

The reflux port 304 of the filling head 3 is connected with the mixing tank 1 through a third pipeline 63, the reflux control valve 53 is arranged on the third pipeline 63, and the reflux control valve 53 is used for controlling the on-off of the third pipeline 63.

The tank pressing cylinder 42 is fixedly arranged, the filling head 3 is connected with a tank pressing cylinder piston rod 421 of the tank pressing cylinder 42, the expansion and contraction of the piston rod of the tank pressing cylinder 42 drives the filling head 3 to lift, the aerosol tank 100 is pressed when the filling head 3 descends, the inner cavity 301 of the filling head 3 is communicated with the inner cavity of the aerosol tank 100 through the tank opening 303, and the material pushing cylinder piston rod 412 of the material pushing cylinder 41 extrudes and presses the material liquid in the measuring cylinder 2 into the aerosol tank 100 when the filling is descending, so that one-step filling of the mixed material liquid is completed.

The pushing cylinder 41, the tank pressing cylinder 42, the hydraulic diaphragm pump 51, the feeding control valve 52 and the backflow control valve 53 are respectively and electrically connected with a controller, and the controller controls each part to execute corresponding preset actions according to preset programs.

In this embodiment, the mixing tank, the first pipeline, the metering cylinder, the second pipeline, the filling head and the third pipeline form a circulation loop, the first pipeline is provided with a hydraulic diaphragm pump and a feeding control valve, and the third pipeline is provided with a backflow control valve.

The mixed feed liquid is stored in a mixing tank and pumped and circulated by a hydraulic diaphragm pump. The hydraulic diaphragm pump pressurizes the mixed feed liquid to a pressure of 12-14 kg, when the mixed feed liquid is not filled, the feed control valve and the reflux control valve are both in an open state, the filling port of the filling head is in a closed state, the feed liquid is conveyed into the metering cylinder after passing through the feed control valve, flows out to the filling head through the outlet of the metering cylinder, and then flows back into the mixing tank through the third pipeline and the reflux control valve; when the device is in a filling state, the reflux control valve and the feeding control valve are sequentially closed, the tank pressing cylinder pushes the filling head to press the aerosol tank, so that the tank opening of the filling head is in butt joint communication with the aerosol tank, the piston rod of the pushing cylinder descends to extrude and push the feed liquid in the metering cylinder into the aerosol tank, then the tank pressing cylinder and the pushing cylinder return, and the feeding control valve and the reflux control valve are opened to finish one-step filling of the mixed feed liquid. Under the action of the hydraulic diaphragm pump, the mixed feed liquid always flows, and only can be stopped at a moment of filling, and flows into the mixing tank again after the filling is finished, so that the powder particles cannot be precipitated.

Through the above, it is difficult to find that, in the one-step method filling system of this embodiment, through setting up the blending jar, the measuring cylinder, the hydraulic diaphragm pump, the pushing cylinder, the filling stub bar, the pressure jar cylinder, the feed control valve, backflow control valve and controller, the blending jar is connected with the measuring cylinder through first pipeline, hydraulic diaphragm pump and feed control valve set up on first pipeline, the measuring cylinder passes through the second pipeline and is connected with the filling stub bar, the pushing cylinder piston rod of pushing the material jar stretches into the jar intracavity of measuring cylinder, the filling stub bar passes through the third pipeline and is connected with the blending jar, backflow control valve sets up on the third pipeline, the filling stub bar is connected with the piston rod of pressure jar cylinder. In the one-step filling system of the embodiment, the controller controls the hydraulic diaphragm pump to pressurize the mixed feed liquid to a pressure of 12-14 kg, and when the mixed feed liquid is not in a filling state, the feed control valve and the reflux control valve are in an open state, the feed liquid is conveyed into the metering cylinder after passing through the feed control valve, flows out to the filling head through the outlet of the metering cylinder, and then flows back into the mixing tank through the third pipeline and the reflux control valve; when the material filling device is in a filling state, the reflux control valve and the feeding control valve are sequentially closed, meanwhile, the filling head is pushed by the tank pressing cylinder to press the aerosol tank, the tank opening of the filling head is communicated with the aerosol tank in a butt joint mode, the material liquid in the metering cylinder is extruded and pushed into the aerosol tank by the descending of the piston rod of the pushing cylinder, then the tank pressing cylinder and the pushing cylinder return, and the feeding control valve and the reflux control valve are opened to finish filling of the material liquid. Under the action of the hydraulic diaphragm pump, the feed liquid always circularly flows and is only stopped at one moment of filling, so that powder particles cannot be precipitated, the mixed feed liquid of tetrafluoroethane and the powder particles is filled at the same time, the filling process is reduced, and the production efficiency is improved.

Alternatively, as shown in fig. 5 and 6, the one-step filling system in the present embodiment, the filling head 3 includes: a filling nozzle 31, a compacting cylinder 32, a push rod 33 and a spring 34.

The inner cavity 301 of the filling head 3 is arranged inside the filling nozzle 31, the feed inlet 302 and the return inlet 304 are respectively arranged on the side walls of the filling nozzle 31, and the filling opening 303 is arranged on the bottom wall of the filling nozzle 31.

The hold-down cylinder 32 is disposed at the top end of the filling nozzle 31, and the top end of the hold-down cylinder 34 is connected with a hold-down cylinder piston rod 421 of the hold-down cylinder 42 through a connecting piece.

The ejector rod 33 is arranged in the inner cavity 301 of the filling nozzle 31, the top end of the ejector rod 33 is connected with the piston of the compacting cylinder 32, and a diaphragm 35 is arranged between the filling nozzle 31 and the compacting cylinder 32. The bottom end of the ejector rod 33 is provided with a sealing head 331, and the sealing head 331 of the ejector rod 33 is used for sealing the canning opening 303 of the canning mouth 31, so that the inner cavity 301 of the canning mouth 31 is sealed.

The spring 34 is sleeved on the piston rod of the pressing cylinder 32, the bottom end of the spring 34 is propped against the piston of the pressing cylinder 32, and the top end of the spring 34 is propped against the sealing top cover of the pressing cylinder 32. The spring 34 makes the sealing head 331 of the plunger 33 abut against the filling opening 303, and seals the filling opening 303 of the filling nozzle 31.

In the embodiment, when the filling state is not achieved, under the combined action of the compression cylinder and the spring, the sealing head of the ejector rod is propped against the filling opening of the filling nozzle to seal the filling opening. When in filling, the filling cylinder drives the filling head to descend, the top end of the aerosol can stretches into the can opening of the filling nozzle, the ejector rod and the sealing head are pushed upwards, and the aerosol can is communicated with the inner cavity of the filling nozzle. Then, the piston rod of the pushing cylinder moves downwards, the feed liquid in the metering cylinder is pressed into the aerosol tank for filling, and then the pushing cylinder and the tank pressing cylinder return upwards, so that the filling is completed.

Further, in the one-step filling system in this embodiment, the piston of the pressing cylinder 32 and the sealing top cover of the pressing cylinder 32 are provided with the first accommodating groove 305, and the bottom end and the top end of the spring 34 are respectively embedded into the first accommodating groove 305 of the piston of the pressing cylinder 32 and the sealing top cover, so that the spring 34 is kept stable in the pressing cylinder 32.

Optionally, as shown in fig. 1 and fig. 3, the one-step filling system in this embodiment further includes: and a final signal detection component.

The final signal detection assembly includes: signaling lever 71, signaling spring 72, signaling rod 73, and signaling sensor 74.

The signal lever 71 is rotatably arranged on a cylinder seat of the metering cylinder 2 and is positioned between the metering cylinder 2 and the pushing cylinder 41.

The signaling spring 72 is provided on the cylinder seat of the measuring cylinder 2, and is located between the measuring cylinder 2 and the signaling lever 71, and the tip of the signaling spring 72 abuts against the bottom surface of the signaling lever 71.

The signaling rod 73 is slidably arranged on the lower cylinder cover of the pushing cylinder 41 in a penetrating manner, the bottom end of the signaling rod 73 abuts against the top surface of the signaling lever 71, and the top end of the signaling rod 73 extends into the cylinder cavity of the pushing cylinder 41 and is used for abutting against the pushing cylinder piston 411 of the pushing cylinder 41.

The signaling sensor 74 is disposed on the outer wall of the pushing cylinder 41 and electrically connected to the controller.

In this embodiment, when the pushing cylinder piston 411 is lowered, the pushing cylinder piston rod 412 presses the feed liquid in the metering cylinder 2 into the aerosol canister, and the aerosol canister is filled. When the pushing cylinder piston and the pushing cylinder piston rod reach the lowest point, the pushing cylinder piston contacts with the signaling rod to push the signaling lever to rotate when filling is completed, the signaling sensor sends a position signal of the pushing cylinder piston to the controller when sensing that the signaling lever reaches a preset position, and the controller controls the pushing cylinder and the tank pressing cylinder to return after receiving the position signal of the pushing cylinder piston and simultaneously opens the feeding control valve and the backflow control valve.

Further, in the one-step filling system of the present embodiment, the cylinder seat of the metering cylinder 2 and the bottom of the signaling lever 71 are respectively provided with a second accommodating groove, and the bottom and the top of the signaling spring 72 are respectively embedded into the second accommodating grooves of the cylinder seat of the metering cylinder 2 and the signaling lever 71, so that the signaling spring 72 is kept stable.

Alternatively, as shown in fig. 1, 3 and 4, in the one-step filling system of the present embodiment, the pushing cylinder 41 is provided with a stroke adjustment assembly for adjusting the stroke of the pushing cylinder piston 411 and the pushing cylinder piston rod 412, thereby adjusting the size of the filling dose each time.

The stroke adjustment assembly includes: a first bevel gear 81, a second bevel gear 82, and an adjusting screw 83.

A limiting disc 831 is arranged at the bottom end of the adjusting screw 83.

The adjusting screw 83 is arranged on the upper cylinder cover of the pushing cylinder 41 in a penetrating way, and a limiting disc 831 of the adjusting screw 83 is positioned in the cylinder cavity of the pushing cylinder 41.

The first bevel gear 81 is provided on the cylinder upper cover of the pushing cylinder 41 through a bearing housing, and the end of the gear shaft of the first bevel gear 81 is provided with a handle 811.

The second bevel gear 82 is arranged on the upper cylinder cover of the pushing cylinder 41 through a bearing seat, the second bevel gear 82 is meshed with the first bevel gear 81, and the first bevel gear 81 and the second bevel gear 82 are driven to rotate when the handle 811 is rotated.

The gear shaft of the second bevel gear 82 is provided with a threaded hole, the adjusting screw 83 is also arranged in the threaded hole of the gear shaft of the second bevel gear 82 in a penetrating way, and is meshed with the gear shaft of the second bevel gear 82, the second bevel gear 82 drives the adjusting screw 83 to lift when rotating so as to adjust the upper and lower heights of the limiting disc 831 in the pushing cylinder 41, thereby adjusting the strokes of the pushing cylinder piston 411 and the pushing cylinder piston rod 412 and realizing the adjustment of filling dosage.

Preferably, a protective cover 84 is arranged on the upper cylinder cover of the pushing cylinder 41, the protective cover 84 shields the first bevel gear 81 and the second bevel gear 82, dust is prevented from entering, and the use is safer.

Optionally, in the one-step filling system in this embodiment, the mixing tank 1 is provided with stirring blades.

The stirring blade (not shown) is connected with an external motor through a connecting shaft, and the stirring blade stirs the mixed liquid in the mixing tank 1 to further prevent the precipitation of the powder particles.

Alternatively, the one-step filling system in this embodiment, feed control valve 52 and return control valve 53 are diaphragm valves.

The sealing rings in the metering cylinder 2, the diaphragm valve, the filling head 3, the hydraulic diaphragm pump 51 and each cylinder are all sealing rings machined by tetrafluoroethylene, and the inside of the metering cylinder, the hydraulic diaphragm pump, the diaphragm valve and the filling head are mirror surfaces machined so as to prevent powder particles from remaining.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact between the first feature and the second feature, or an indirect contact between the first feature and the second feature through an intervening medium.

Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.

In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A one-step filling system, comprising: the device comprises a mixing tank, a metering cylinder, a hydraulic diaphragm pump, a pushing cylinder, a filling head, a tank pressing cylinder, a feeding control valve, a backflow control valve and a controller;

the mixing tank is fixedly arranged and used for storing feed liquid;

2. The one-step filling system of claim 1, wherein the filling head comprises: the filling nozzle, the compression cylinder, the ejector rod and the spring;

The filling nozzle is provided with the inner cavity;

3. The one-step filling system according to claim 2, wherein the piston and the seal cap of the hold-down cylinder are each provided with a first receiving groove for the spring to be inserted.

4. The one-step filling system of claim 1, further comprising: a final signal detection component;

The signal transmission lever is rotatably arranged on the metering cylinder;

5. The one-step filling system according to claim 4, wherein the metering cylinder and the signaling lever are each provided with a second receiving groove for the signaling spring to embed.

6. The one-step filling system according to claim 1, wherein the pushing cylinder is provided with a stroke adjustment assembly for adjusting the filling dose;

a limiting disc is arranged at the bottom end of the adjusting screw rod;

7. The one-step filling system of claim 1, wherein stirring vanes are provided in the compounding tank;

8. The one-step filling system of claim 1, wherein the feed control valve and the return control valve are each diaphragm valves.