CN215753317U

CN215753317U - Diaphragm filling system

Info

Publication number: CN215753317U
Application number: CN202122278003.XU
Authority: CN
Inventors: 杜伯韬; 周成钢; 郑泽本
Original assignee: Shenyang Beiya Beverage Machinery Co ltd
Current assignee: Shenyang Beiya Beverage Machinery Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-08
Anticipated expiration: 2031-09-18

Abstract

The utility model provides a diaphragm filling system, solves the pipeline arrangement mode that prior art exists complicated, is unfavorable for the automated control of production process, and filling mechanism sealing performance is poor, influences the filling quality, and the operation fault rate is high problem. Including being provided with the filling storage tank of feed inlet and discharge gate on it, its characterized in that: a diaphragm filling mechanism is arranged below the filling storage tank, a discharge port is connected with a filling material inlet port of the diaphragm filling mechanism through a feeding pipeline, and a material conveying diaphragm one-way valve is arranged between the filling material inlet port and the feeding pipeline; the filling and discharging interface of the diaphragm filling mechanism is connected with a filling vertical pipe through a filling pipeline, and the lower end of the filling vertical pipe is provided with a filling rubber nozzle; and a filling diaphragm one-way valve is arranged between the filling and discharging interface and the filling pipeline. The automatic quantitative filling machine has the advantages of reasonable design, compact structure, high quantitative filling accuracy, convenience in observing the internal condition of the tank body, good running stability, low failure rate, contribution to automatic control of the production process, high food sanitation level and strong practicability.

Description

Diaphragm filling system

Technical Field

The utility model belongs to the technical field of food packaging equipment, and particularly relates to a diaphragm filling system which is high in filling quantitative accuracy, convenient to observe the internal condition of a tank body, good in operation stability, low in failure rate, beneficial to automatic control of a production process, capable of effectively preventing pollution, high in food sanitation level and strong in practicability, and the production safety is improved.

Background

The tank body of the storage tank of the liquid food packaging equipment is generally provided with a feeding pipeline, a discharging pipeline and a cleaning pipeline. The existing pipeline is complex in arrangement mode and inconvenient to maintain; the complicated crisscross pipeline is unfavorable for the automated control of production process, and owing to need set up more trompil on the jar body to also be unfavorable for the control that prevents the pollution. In addition, the interval type conveying and filling mode adopted in the packaging process of the liquid food is realized by reciprocating pushing of a pneumatic piston. However, the existing pneumatic piston with a common structure has the problems of poor sealing performance, easy generation of fine scraps in the long-time repeated pushing use process and the like, the filling quality of liquid food is seriously influenced, and the food sanitation grade is low. Meanwhile, the existing pneumatic piston mechanism has high operation failure rate, poor use reliability and difficult maintenance, and reduces the production efficiency of products. Moreover, the existing traditional storage tank is mostly in an integrally closed structural form, so that the condition of the interior of the tank body cannot be observed completely in the production process of food, potential risks cannot be found at any time, the rejection rate is increased, and the production cost is increased. There is a need for an improved filling system for existing food packaging equipment.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the diaphragm filling system which has high filling quantitative accuracy, is convenient to observe the internal condition of the tank body, improves the production safety, has good operation stability and low fault rate, is beneficial to the automatic control of the production process, can effectively prevent pollution, and has high food sanitation grade and strong practicability.

The technical scheme adopted by the utility model is as follows: this diaphragm filling system includes filling storage tank, its characterized in that: the filling material storage tank is provided with a feeding hole and a discharging hole respectively, and the feeding hole is connected with a material conveying connector through a pipeline; at least one group of diaphragm filling mechanisms are arranged below the filling storage tank, the discharge port is connected with a filling material inlet port of each diaphragm filling mechanism through a feeding pipeline, and a material conveying diaphragm one-way valve is arranged between the filling material inlet port and the feeding pipeline; meanwhile, a filling and discharging interface of the diaphragm filling mechanism is connected with the upper end of a filling vertical pipe fixedly arranged on the filling pipe supporting frame through a filling pipeline, and the lower end of the filling vertical pipe is provided with a filling rubber nozzle; and a filling diaphragm one-way valve is arranged between the filling and discharging interface and the filling pipeline.

The filling material storage tank comprises a material storage tank body, a supporting and fixing frame is arranged on the lower side of the material storage tank body, the feeding port and the discharging port are respectively arranged on the lower portion of the material storage tank body, the feeding port is connected with a material conveying connecting port through a material conveying pipeline, the material conveying connecting port is connected with one end of a cleaning pipeline through a three-way joint, the other end of the cleaning pipeline is connected with a cleaning liquid inlet on the upper portion of the material storage tank body, and the cleaning liquid inlet is connected with a rotary cleaning and blowing ball arranged inside the material storage tank body; meanwhile, a material conveying opening-closing valve is arranged between the material conveying connecting port and the material feeding end of the material conveying pipeline, and a cleaning inlet opening-closing valve is arranged between the cleaning liquid inlet and the end part of the cleaning pipeline; the washing liquid outlet of storage tank body below links to each other with the discharge end of feed inlet and conveying pipeline through three way connection, and is provided with the washing export open and close valve between washing liquid outlet and the feed inlet.

The structure of the material conveying on-off valve, the structure of the cleaning inlet on-off valve and the structure of the cleaning outlet on-off valve are the same, and the material conveying on-off valve, the cleaning inlet on-off valve and the cleaning outlet on-off valve are all composed of on-off valve bodies, and the on-off valve bodies are respectively provided with an on-off valve inlet and an on-off valve outlet; an on-off valve chamber for communicating the on-off valve inlet and the on-off valve outlet is arranged in the on-off valve body; the telescopic valve rod is positioned at the front end inside the on-off valve cavity of the on-off valve body and is provided with an on-off valve core for opening and closing the on-off valve cavity, and the telescopic valve rod is positioned at the rear end outside the on-off valve body and is connected with a cylinder telescopic rod of the valve rod driving cylinder; the valve rod drives actuating cylinder and passes through the detachable connection of cylinder link and open and close valve body, and between the tip of open and close valve body and cylinder link, is provided with the connection clamp. The valve rod drives the cylinder to drive the telescopic valve rod to move, and then the valve core of the opening and closing valve is used for opening or closing the valve cavity of the opening and closing valve; and the valve rod driving cylinder and the opening and closing valve body are connected into a whole through the cylinder connecting frame, and the cylinder telescopic rod of the valve rod driving cylinder is connected with the telescopic valve rod in the hollow structure inside the cylinder connecting frame, so that the compact structure degree of the whole device is improved.

The upside of the storage tank body is provided with a normal pressure vent hole, and the normal pressure vent hole is communicated with the atmosphere through a clean vent pipeline with a filtering device. So that the liquid material in the material storage tank body can smoothly flow.

The two end parts of the material storage tank body are respectively provided with a transparent visual end plate. With the inside condition of conveniently observing the storage tank body, can discover the risk at any time, effectively promote the production security.

The diaphragm filling mechanism comprises a connecting base, a filling cylinder is arranged on the connecting base, a diaphragm sleeve is movably arranged in the filling cylinder, and a front diaphragm sleeve is arranged at the front end of the diaphragm sleeve; a filling liquid storage cavity is arranged at the front end of the filling cylinder body and in front of the front diaphragm sleeve; the front part of the filling liquid storage cavity of the filling cylinder body is provided with a filling connecting end head, and a filling material inlet interface and a filling material outlet interface are respectively arranged on the filling connecting end head; the rear end of the diaphragm sleeve is connected with a driving part of a filling driving mechanism arranged on the connecting base.

The front diaphragm sleeve comprises a cylindrical front spacer main body, a sleeve sleeving cavity is arranged in the cylindrical front spacer main body, the front end of the diaphragm sleeve extends into the sleeve sleeving cavity of the front spacer main body, and the front end of the diaphragm sleeve is connected with a front end cover connecting part at the front end of the front spacer main body; the rear end of the front spacer body is provided with a front spacer outward turning section extending towards the front end of the front spacer body, and the tail end of the front spacer outward turning section is provided with a front spacer opening edge used for being connected with the inner side of the front end of the filling cylinder body. The opening end of the front diaphragm sleeve is fixedly connected with the inner side of the front end of the filling cylinder body by utilizing a clamping flange arranged on the opening edge of the front spacer sleeve; and the front end cover connecting part at the front end of the front spacer sleeve main body is connected with the front end cover of the diaphragm sleeve in a vacuum adsorption, bolt fastening, integral pouring or hot press forming mode and the like, so that the soft front diaphragm sleeve reciprocates along with the diaphragm sleeve, and the liquid food in the filling liquid storage cavity at the front end of the filling cylinder body is recovered, sucked and pushed out for filling.

The rear end of the diaphragm sleeve movably arranged in the filling cylinder body is provided with a rear diaphragm sleeve, and the rear end of the filling cylinder body and the rear part of the rear diaphragm sleeve are provided with a driving isolation cavity. In order to utilize the rear portion diaphragm cover that the diaphragm sleeve rear end set up, form the drive in the space of filling barrel rear end and keep apart the chamber to effectively avoid long-time use, dust and debris deposit of filling actuating mechanism one side enter into the filling barrel in, influence the telescopic normal action of diaphragm.

The rear diaphragm sleeve comprises a cylindrical rear diaphragm sleeve main body, a sleeve sleeving cavity is arranged in the cylindrical rear diaphragm sleeve main body, the rear end of the diaphragm sleeve extends into the sleeve sleeving cavity of the rear diaphragm sleeve main body, and the rear end of the diaphragm sleeve is connected with a rear end cover connecting part at the front end of the rear diaphragm sleeve main body; the rear end of the rear spacer body is provided with a rear spacer outward-turning section extending towards the front end of the rear spacer body, and the tail end of the rear spacer outward-turning section is provided with a rear spacer opening edge used for being connected with the inner side of the rear end of the filling cylinder body. The opening end of the rear diaphragm sleeve is fixedly connected with the inner side of the rear end of the filling cylinder body by utilizing a clamping flange arranged on the opening edge of the rear diaphragm sleeve; meanwhile, the rear end cover connecting part at the front end of the rear spacer sleeve main body is connected with the rear end cover of the diaphragm sleeve in the modes of bolt fastening, vacuum adsorption, integral casting or hot press forming and the like, so that the soft rear diaphragm sleeve can reciprocate along with the diaphragm sleeve, and the driving isolation cavity at the rear end of the filling cylinder is effectively sealed.

The front diaphragm sleeve and the rear diaphragm sleeve at two ends of the diaphragm sleeve enclose the middle part of the inner cavity of the filling cylinder body to form a vacuum space, and the vacuum space is connected with a vacuum generating device through a vacuum connecting port arranged on the cylinder wall of the filling cylinder body; and a plurality of groups of cylinder vacuum through holes are arranged on the cylinder wall of the diaphragm sleeve in the vacuum space. The inner cavity space in the filling cylinder, between the front diaphragm sleeve and the rear diaphragm sleeve is pumped into a vacuum space in a negative pressure state by utilizing a vacuum generating device such as a vacuum pump and the like through a vacuum connecting port on the cylinder wall of the filling cylinder, so that the front diaphragm sleeve and the rear diaphragm sleeve are tightly attached to the outer wall of the diaphragm sleeve and the inner wall of the filling cylinder, and the accuracy of filling quantity is improved; and through the barrel vacuum through hole on the wall of the diaphragm sleeve, the negative pressure in the vacuum space formed between the front diaphragm sleeve and the rear diaphragm sleeve is more uniform and constant, and the attaching effect of the diaphragm sleeves at the two ends of the diaphragm sleeve is ensured.

The utility model has the beneficial effects that: because the utility model adopts the filling material storage tank which is respectively provided with the feeding hole and the discharging hole, the feeding hole is connected with the material conveying connecting port through a pipeline; at least one group of diaphragm filling mechanisms are arranged below the filling storage tank, the discharge port is connected with a filling material inlet port of each diaphragm filling mechanism through a feeding pipeline, and a material conveying diaphragm one-way valve is arranged between the filling material inlet port and the feeding pipeline; the filling and discharging interface of the diaphragm filling mechanism is connected with the upper end of a filling vertical pipe fixedly arranged on the filling pipe supporting frame through a filling pipeline, and the lower end of the filling vertical pipe is provided with a filling rubber nozzle; the filling membrane one-way valve is arranged between the filling discharging interface and the filling pipeline, so that the filling membrane one-way valve has the advantages of reasonable design, compact structure, high filling quantitative accuracy, convenience in observing the internal condition of the tank body, capability of effectively improving the production safety, good operation stability and low failure rate; the automatic control of the production process is facilitated, the pollution can be effectively prevented, the food sanitation level is high, and the practicability is high.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a view in the direction a of fig. 1.

Fig. 3 is a schematic view of a filling material tank of fig. 2.

Fig. 4 is a view from direction B of fig. 3.

FIG. 5 is a schematic view showing a structure of a feed opening/closing valve (purge inlet opening/closing valve or purge outlet opening/closing valve) in FIG. 4.

Fig. 6 is a sectional view of the internal structure of fig. 5.

Fig. 7 is a schematic diagram of one configuration of the membrane filling mechanism of fig. 2.

Fig. 8 is a sectional view of the internal structure of fig. 7.

The sequence numbers in the figures illustrate: 1 filling material storage tank, 2 material conveying connecting ports, 3 material inlet ports, 4 material outlet ports, 5 material conveying pipelines, 6 material conveying diaphragm one-way valves, 7 diaphragm filling mechanisms, 8 material filling diaphragm one-way valves, 9 filling pipelines, 10 filling vertical pipes, 11 filling rubber nozzles, 12 filling pipe supporting frames, 13 material storage tank bodies, 14 supporting and fixing frames, 15 material conveying pipelines, 16 material conveying opening and closing valves, 17 cleaning pipelines, 18 cleaning inlet opening and closing valves, 19 cleaning liquid inlet ports, 20 cleaning liquid outlet ports, 21 cleaning outlet opening and closing valves, 22 normal-pressure vent holes, 23 liquid level liquid thermometers, 24 transparent visible end plates, 25 rotary cleaning and blowing balls, 26 opening and closing valve bodies, 27 opening and closing valve inlets, 28 opening and closing valve outlets, 29 cylinder connecting frames, 30 connecting clamps, 31 telescopic valve rods, 32 valve rod driving cylinders, 33 opening and closing valve cavities, 34 valve cores, 35 filling cylinder bodies, 36 vacuum connecting ports, 37 filling connecting ends, 38 filling discharging interfaces, 39 filling feeding interfaces, 40 filling driving mechanisms, 41 connecting bases, 42 telescopic rods, 43 diaphragm cylinder connecting discs, 44 diaphragm sleeves, 45 front diaphragm sleeves, 46 rear diaphragm sleeves, 47 vacuum spaces, 48 filling liquid storage cavities, 49 driving isolation cavities, 50 front diaphragm sleeve opening edges and 51 rear diaphragm sleeve opening edges.

Detailed Description

The specific structure of the present invention will be described in detail with reference to FIGS. 1 to 8. This diaphragm filling system includes filling storage tank 1, and filling storage tank 1 comprises cylindric storage tank body 13, and the downside of the storage tank body 13 that the level was arranged is provided with four groups and supports mount 14. The lower part of the material storage tank body 13 is also provided with a group of feed inlets 3 and two groups of discharge outlets 4 respectively; the feed inlet 3 is connected with the feed delivery connecting port 2 through a feed delivery pipeline 15, and the feed delivery connecting port 2 is connected with a feed pipeline. In order to facilitate smooth flowing of liquid materials in the material storage tank body 13, the upper side of the material storage tank body 13 is provided with a normal pressure vent hole 22, and the normal pressure vent hole 22 is communicated with the atmosphere through a clean vent pipeline with a filtering device. The both ends of the storage tank body 13 are provided with transparent visual end plates 24 respectively, and then conveniently observe the inside condition of the storage tank body 13 to can discover the risk at any time, effectively promote the production security. The downside of the storage tank body 13 is provided with a liquid level liquid thermometer 23 for monitoring the internal temperature and liquid level of the tank, thereby controlling the internal temperature and liquid level value of the storage tank body 13 in real time and being beneficial to the automatic control of the production process.

The material conveying connecting port 2 of the filling material storage tank 1 is also connected with one end of a cleaning pipeline 17 through a three-way joint, and the other end of the cleaning pipeline 17 is connected with a cleaning liquid inlet 19 at the upper part of the material storage tank body 13; and the cleaning liquid inlet 19 is connected with a rotary washing and blowing ball 25 which is vertically arranged in the material storage tank body 13. Meanwhile, a material conveying opening-closing valve 16 is arranged between the material conveying connecting port 2 and the feeding end of the material conveying pipeline 15, and a cleaning inlet opening-closing valve 18 is arranged between the cleaning liquid inlet 19 and the end part of the cleaning pipeline 17; the cleaning liquid outlet 20 below the material storage tank body 13 is connected with the feed inlet 3 and the discharge end of the material conveying pipeline 15 through a three-way joint, and a cleaning outlet opening and closing valve 21 is arranged between the cleaning liquid outlet 20 and the feed inlet 3.

The feed opening/closing valve 16, the cleaning inlet opening/closing valve 18 and the cleaning outlet opening/closing valve 21 have the same structure and are each composed of an opening/closing valve body 26, and the opening/closing valve body 26 is provided with an opening/closing valve inlet 27 and an opening/closing valve outlet 28; an on-off valve chamber 33 for communicating the on-off valve inlet 27 and the on-off valve outlet 28 is provided inside the on-off valve body 26. A telescopic valve rod 31 is inserted into the on-off valve cavity 33 of the on-off valve body 26, the telescopic valve rod 31 is positioned at the front end inside the on-off valve cavity 33 of the on-off valve body 26, and an on-off valve spool 34 for opening and closing the on-off valve cavity 33 is arranged; the telescopic valve rod 31 is located at the rear end outside the opening/closing valve body 26 and is connected to the cylinder telescopic rod 42 of the valve rod driving cylinder 32. The valve rod driving cylinder 32 is detachably connected to the opening/closing valve body 26 via a cylinder connecting frame 29. Thereby, the telescopic valve rod 31 is driven to move by the valve rod driving cylinder 32, so that the valve core 34 of the on-off valve is used for opening or closing the valve cavity 33 of the on-off valve; the valve rod driving cylinder 32 and the opening and closing valve body 26 are connected into a whole through the cylinder connecting frame 29, and the cylinder expansion link 42 of the valve rod driving cylinder 32 is connected with the expansion valve rod 31 in the hollow structure inside the cylinder connecting frame 29, so that the structure compactness of the whole device is improved.

A connecting hoop 30 is arranged between the end parts of the opening and closing valve body 26 and the cylinder connecting frame 29, the connecting hoop 30 is composed of two groups of semicircular clamping rings which are symmetrically arranged, and flange clamping grooves are respectively arranged on the inner sides of the semicircular clamping rings. One end of each of the two groups of semicircular clamping rings is hinged through a hinged rotating shaft, and the other end of each of the two groups of semicircular clamping rings is movably connected through a closed connecting rotating rod with a closed locking nut at the end part; and then the flange clamping grooves on the inner sides of the two groups of semi-circle clamping rings which are closed mutually are utilized to clamp and fixedly connect the connecting flange at the joint position of the on-off valve body 26 and the cylinder connecting frame 29 so as to form flexible connection of each on-off valve and the cylinder connecting frame 29 of the valve rod driving cylinder 32, and the on-off valve is convenient to install, disassemble and maintain.

And two groups of diaphragm filling mechanisms 7 which are transversely and horizontally arranged are arranged below the filling storage tank 1. The membrane filling mechanism 7 comprises a connecting base 41, and filling cylinders 35 which are transversely arranged are arranged on the connecting base 41; a retractable septum sleeve 44 is movably disposed within the interior of the filling cylinder 35. The diaphragm sleeve 44 is formed of a hollow middle cylinder, and a front end cover and a rear end cover are respectively provided at openings at both ends of the middle cylinder. The middle cylinder of the diaphragm sleeve 44 comprises a cylindrical shell ring, two ends of the cylindrical shell ring are respectively provided with a conical shell ring, and the diameter of the outer port of each conical shell ring is smaller than that of the inner port; and a cylindrical shell ring in the middle and the middle parts of the conical shell rings at the two ends are provided with a shell cavity in a penetrating way. Therefore, the structure that the middle part of the middle cylinder is wide and the two ends of the middle cylinder are narrow is beneficial to the reciprocating motion of the diaphragm sleeve 44 in the filling cylinder 35, and the smoothness of the front diaphragm sleeve 45 and the rear diaphragm sleeve 46 in the process of moving along with the diaphragm sleeve 44 is ensured.

A diaphragm cylinder connecting disc 43 is further arranged on the outer side of the rear end cover of the diaphragm sleeve 44, and the diaphragm cylinder connecting disc 43 is mounted in a connecting disc mounting hole of the rear end cover through a connecting bolt; at the same time, the diaphragm cartridge connecting plate 43 also press-fixes the rear end cover connecting portion of the rear diaphragm cover 46 to the rear end cover. The diaphragm sleeve connecting plate 43 on the rear end cap of the diaphragm sleeve 44 is also connected to the front end of the telescopic rod 42 of the filling driving mechanism 40 (for example, an electric push rod or an air cylinder) transversely arranged on the connecting base 41.

A soft front diaphragm sleeve 45 is provided at the front end of the diaphragm sleeve 44 and inside the front part of the filling cylinder 35. The front diaphragm sleeve 45 is composed of a cylindrical front spacer main body made of sterile silica gel, and a sleeve sleeving cavity is arranged inside the cylindrical front spacer main body; the front end of the diaphragm sleeve 44 extends into the sleeve sleeving cavity of the front spacer body, and the front end cover of the front end of the diaphragm sleeve 44 is connected with the front end cover connecting part of the front end of the front spacer body. The rear end of the front spacer body is provided with a front spacer outward turning section extending towards the front end of the front spacer body, the tail end of the front spacer outward turning section is provided with a front spacer opening edge 50 used for being connected with the inner side of the front end of the filling cylinder 35, and the front spacer opening edge 50 is clamped at the joint part between the front end of the filling cylinder 35 and the rear end of the filling connecting end 37 through a clamping flange arranged on the front spacer opening edge 50.

A filling liquid storage cavity 48 for temporarily storing and sucking materials is arranged at the front end of the filling cylinder body 35 and in front of the front diaphragm sleeve 45. The front part of the filling liquid storage cavity 48 of the filling cylinder 35 is provided with a filling connecting end 37, and the filling connecting end 37 is respectively provided with a filling material inlet interface 39 and a filling material outlet interface 38; a viewing window is also provided in the side wall of filling connection end 37. And then, the opening end of the front diaphragm sleeve 45 is fixedly connected with the inner side of the front end of the filling cylinder body 35 by utilizing a clamping flange arranged on the opening edge 50 of the front diaphragm sleeve, and the front end cover connecting part at the front end of the front diaphragm sleeve main body is connected with the front end cover of the diaphragm sleeve 44 in a vacuum adsorption, bolt fastening, integral casting or hot press forming mode, so that the soft front diaphragm sleeve 45 reciprocates along with the diaphragm sleeve 44 to take back, suck and push out and fill the liquid food in the filling liquid storage cavity 48 at the front end of the filling cylinder body 35.

The rear end of the diaphragm sleeve 44 movably arranged in the filling cylinder 35 is also provided with a soft rear diaphragm sleeve 46. The rear diaphragm sleeve 46 comprises a cylindrical rear diaphragm sleeve main body made of sterile silica gel, a sleeve sleeving cavity is arranged inside the cylindrical rear diaphragm sleeve main body, and the rear end of the diaphragm sleeve 44 extends into the sleeve sleeving cavity of the rear diaphragm sleeve main body; also, the rear end cap of the rear end of the diaphragm sleeve 44 is connected to the rear end cap connection portion of the front end of the rear diaphragm main body. The rear end of the rear spacer body is provided with a rear spacer outward-turning section extending towards the front end of the rear spacer body, the tail end of the rear spacer outward-turning section is provided with a rear spacer opening edge 51 used for being connected with the inner side of the rear end of the filling cylinder 35, and the rear spacer opening edge 51 is clamped at the joint part between the rear end of the filling cylinder 35 and the front side of the support frame through a clamping flange arranged on the rear spacer opening edge 51. A driving isolation cavity 49 is arranged at the rear end of the filling cylinder body 35 and behind the rear diaphragm sleeve 46; the open end of the rear diaphragm sleeve 46 is then fixedly connected to the inside of the rear end of the filling cylinder 35 by means of a snap-fit flange provided on the open edge 51 of the rear diaphragm sleeve. Meanwhile, the rear end cover connecting part at the front end of the rear diaphragm sleeve main body is connected with the rear end cover of the diaphragm sleeve 44 through the modes of bolt fastening, vacuum adsorption, integral pouring or hot press forming and the like, so that the soft rear diaphragm sleeve 46 can reciprocate along with the diaphragm sleeve 44, a driving isolation cavity 49 formed by the rear diaphragm sleeve 46 in the rear end space of the filling cylinder 35 is effectively sealed, and dust and sundries on one side of the filling driving mechanism 40 are effectively prevented from depositing into the filling cylinder 35 and influencing the normal action of the diaphragm sleeve 44 in the long-time use process.

A front diaphragm sleeve 45 and a rear diaphragm sleeve 46 which are positioned inside the filling cylinder 35 and at two ends of the diaphragm sleeve 44, and enclose the middle part of the inner cavity of the filling cylinder 35 to form a closed vacuum space 47; the vacuum space 47 is connected to a vacuum generating device such as a vacuum pump through a vacuum connection port 36 provided in the cylindrical wall of the filling cylinder 35. The vacuum generating device is used for pumping the cavity space between the front diaphragm sleeve 45 and the rear diaphragm sleeve 46 in the filling cylinder 35 into a vacuum space 47 in a negative pressure state through the vacuum connecting port 36 on the cylinder wall of the filling cylinder 35, so that the front diaphragm sleeve 45 and the rear diaphragm sleeve 46 are tightly attached to the outer wall of the diaphragm sleeve 44 and the inner wall of the filling cylinder 35, and the accuracy of the filling quantity is improved. It can be understood that, according to specific use requirements, in order to ensure the joint effect of the front diaphragm sleeve 45 and the rear diaphragm sleeve 46 at the two ends of the diaphragm sleeve 44, a plurality of groups of cylinder vacuum through holes are arranged on the cylinder wall of the middle cylinder of the diaphragm sleeve 44 in the vacuum space 47 inside the filling cylinder 35; the negative pressure in the vacuum space 47 formed between the front diaphragm sleeve 45 and the rear diaphragm sleeve 46 is more uniform and constant through the cylinder vacuum through holes on the cylinder wall of the diaphragm sleeve 44.

The discharge port 4 of the filling material storage tank 1 is respectively connected with the filling material inlet port 39 of the corresponding diaphragm filling mechanism 7 through the feeding pipeline 5, and a material conveying diaphragm one-way valve 6 for controlling single-channel and double-channel material conveying is arranged between the filling material inlet port 39 and the feeding pipeline 5. Meanwhile, a filling and discharging interface 38 of the membrane filling mechanism 7 is connected with the upper end of a filling vertical pipe 10 fixedly arranged on the filling pipe support frame 12 through a filling pipeline 9; the lower end of the filling vertical pipe 10 is provided with a filling rubber nozzle 11. A filling diaphragm one-way valve 8 for controlling single-channel and double-channel filling materials is also arranged between the filling and discharging interface 38 and the filling pipeline 9. The material conveying diaphragm one-way valve 6 and the material filling diaphragm one-way valve 8 have high response speed and good sealing performance for isolating materials.

In the normal production and use process of the diaphragm filling system, firstly, the material conveying on-off valve 16 is opened, and the cleaning inlet on-off valve 18 and the cleaning outlet on-off valve 21 are both in a closed state; liquid materials in the feeding pipeline enter the material conveying pipeline 15 through the material conveying connecting port 2 and enter the material storage tank body 13 through the feeding port 3. Then, the liquid material stored in the filling material storage tank 1 is conveyed into the feeding pipeline 5 from the discharge port 4 at the lower part of the material storage tank body 13, and the feeding diaphragm one-way valve 6 on the corresponding feeding pipeline 5 is opened according to the production requirements of single-channel and double-channel material conveying. Subsequently, the liquid material enters the filling connection end 37 via the opened filling inlet port 39, and the filling outlet port 38 is temporarily closed (the filling diaphragm check valve 8 is closed). Then, the telescopic rod 42 of the filling driving mechanism 40 retracts to drive the diaphragm sleeve 44 inside the filling cylinder 35 and the front diaphragm sleeve 45 at the front end thereof to move backwards together, so that the liquid material entering from the filling material inlet port 39 is quantitatively sucked into the filling liquid storage cavity 48 at the front end of the filling cylinder 35. Then, the filling and discharging port 38 is opened (the filling membrane check valve 8 is opened), the filling and feeding port 39 is closed (the conveying membrane check valve 6 is closed), and the telescopic rod 42 of the filling driving mechanism 40 is extended forward, so that the membrane sleeve 44 and the front membrane sleeve 45 at the front end of the membrane sleeve are driven to move forward, and quantitative liquid materials in the filling and storing cavity 48 are pushed out. Then, quantitative liquid materials enter the filling vertical pipe 10 through the filling pipeline 9 and continuously and uniformly flow into the packing carton through the filling rubber nozzle 11; and then carrying out subsequent packaging operation.

When the inner cavity of the storage tank body 13 of the filling storage tank 1 needs to be cleaned according to production needs, the material conveying opening and closing valve 16 is closed, and the cleaning inlet opening and closing valve 18 and the cleaning outlet opening and closing valve 21, the material conveying diaphragm one-way valve 6 and the material filling diaphragm one-way valve 8 on corresponding pipelines are opened simultaneously. Then, a high-temperature flushing liquid is poured into the cleaning pipeline 17 through the material conveying connecting port 2 connected with the feeding pipeline, and the high-temperature flushing liquid is rotatably splashed onto the inner wall of the material storage tank body 13 through a rotary cleaning and blowing ball 25 arranged at the cleaning liquid inlet 19, so that the inner cavity of the material storage tank body 13 is cleaned; and the washed flushing liquid flows out of the feeding pipeline 5 and the filling pipeline 9 through a washing liquid outlet 20 connected with the feeding hole 3 at the lower part of the material storage tank body 13.

Claims

1. The utility model provides a diaphragm filling system, includes filling storage tank (1), its characterized in that: the filling material storage tank (1) is respectively provided with a feeding hole (3) and a discharging hole (4), and the feeding hole (3) is connected with the material conveying connecting port (2) through a pipeline; at least one group of diaphragm filling mechanisms (7) are arranged below the filling storage tank (1), the discharge port (4) is connected with a filling material inlet interface (39) of each diaphragm filling mechanism (7) through a feeding pipeline (5), and a material conveying diaphragm one-way valve (6) is arranged between the filling material inlet interface (39) and the feeding pipeline (5); meanwhile, a filling and discharging interface (38) of the diaphragm filling mechanism (7) is connected with the upper end of a filling vertical pipe (10) fixedly arranged on a filling pipe support frame (12) through a filling pipeline (9), and the lower end of the filling vertical pipe (10) is provided with a filling rubber nozzle (11); and a filling diaphragm one-way valve (8) is arranged between the filling and discharging interface (38) and the filling pipeline (9).

2. The septum filling system of claim 1, wherein: the filling storage tank (1) comprises a storage tank body (13), a supporting and fixing frame (14) is arranged on the lower side of the storage tank body (13), a feed port (3) and a discharge port (4) are respectively arranged on the lower portion of the storage tank body (13), the feed port (3) is connected with a material conveying connecting port (2) through a material conveying pipeline (15), the material conveying connecting port (2) is also connected with one end of a cleaning pipeline (17) through a three-way joint, the other end of the cleaning pipeline (17) is connected with a cleaning liquid inlet (19) on the upper portion of the storage tank body (13), and the cleaning liquid inlet (19) is connected with a rotary cleaning and blowing ball (25) arranged inside the storage tank body (13); meanwhile, a material conveying opening and closing valve (16) is arranged between the material conveying connecting port (2) and the feeding end of the material conveying pipeline (15), and a cleaning inlet opening and closing valve (18) is arranged between the cleaning liquid inlet (19) and the end part of the cleaning pipeline (17); the cleaning liquid outlet (20) below the material storage tank body (13) is connected with the feed inlet (3) and the discharge end of the material conveying pipeline (15) through a three-way joint, and a cleaning outlet opening and closing valve (21) is arranged between the cleaning liquid outlet (20) and the feed inlet (3).

3. The septum filling system of claim 2, wherein: the feed delivery on-off valve (16), the cleaning inlet on-off valve (18) and the cleaning outlet on-off valve (21) have the same structure and are all composed of an on-off valve body (26), and an on-off valve inlet (27) and an on-off valve outlet (28) are respectively arranged on the on-off valve body (26); an on-off valve chamber (33) for communicating the on-off valve inlet (27) and the on-off valve outlet (28) is provided inside the on-off valve body (26); the valve body (26) is provided with an opening and closing valve cavity (33), the opening and closing valve cavity (33) is internally provided with a telescopic valve rod (31) in an inserted manner, the telescopic valve rod (31) is positioned at the front end inside the opening and closing valve cavity (33) of the opening and closing valve body (26) and is provided with an opening and closing valve core (34) used for opening and closing the opening and closing valve cavity (33), and the telescopic valve rod (31) is positioned at the rear end outside the opening and closing valve body (26) and is connected with a cylinder telescopic rod (42) of a valve rod driving cylinder (32); the valve rod driving cylinder (32) is detachably connected with the opening and closing valve body (26) through a cylinder connecting frame (29), and a connecting clamp (30) is arranged between the opening and closing valve body (26) and the end part of the cylinder connecting frame (29).

4. The septum filling system of claim 2, wherein: the upside of the storage tank body (13) is provided with a normal pressure vent hole (22), and the normal pressure vent hole (22) is communicated with the atmosphere through a clean vent pipeline with a filtering device.

5. The septum filling system of claim 2, wherein: transparent visual end plates (24) are respectively arranged at the two end parts of the material storage tank body (13).

6. The septum filling system of claim 1, wherein: the membrane filling mechanism (7) comprises a connecting base (41), a filling cylinder body (35) is arranged on the connecting base (41), a membrane sleeve (44) is movably arranged in the filling cylinder body (35), and a front membrane sleeve (45) is arranged at the front end of the membrane sleeve (44); a filling liquid storage cavity (48) is arranged at the front end of the filling cylinder body (35) and in front of the front diaphragm sleeve (45); the front part of a filling liquid storage cavity (48) of the filling cylinder body (35) is provided with a filling connecting end (37), and the filling connecting end (37) is respectively provided with a filling material inlet interface (39) and a filling material outlet interface (38); the rear end of the diaphragm sleeve (44) is connected with a driving part of a filling driving mechanism (40) arranged on the connecting base (41).

7. The septum filling system of claim 6, wherein: the front diaphragm sleeve (45) comprises a cylindrical front spacer main body, a sleeve sleeving cavity is arranged in the cylindrical front spacer main body, the front end of the diaphragm sleeve (44) extends into the sleeve sleeving cavity of the front spacer main body, and the front end of the diaphragm sleeve (44) is connected with a front end cover connecting part at the front end of the front spacer main body; the rear end of the front spacer body is provided with a front spacer outward turning section extending towards the front end of the front spacer body, and the tail end of the front spacer outward turning section is provided with a front spacer opening edge (50) used for being connected with the inner side of the front end of the filling cylinder body (35).

8. The septum filling system of claim 6, wherein: the rear end of a diaphragm sleeve (44) movably arranged in the filling cylinder body (35) is provided with a rear diaphragm sleeve (46), and a driving isolation cavity (49) is arranged at the rear end of the filling cylinder body (35) and behind the rear diaphragm sleeve (46).

9. The septum filling system of claim 8, wherein: the rear diaphragm sleeve (46) comprises a cylindrical rear diaphragm sleeve main body, a sleeve sleeving cavity is arranged in the cylindrical rear diaphragm sleeve main body, the rear end of the diaphragm sleeve (44) extends into the sleeve sleeving cavity of the rear diaphragm sleeve main body, and the rear end of the diaphragm sleeve (44) is connected with a rear end cover connecting part at the front end of the rear diaphragm sleeve main body; the rear end of the rear spacer body is provided with a rear spacer outward-turning section extending towards the front end of the rear spacer body, and the tail end of the rear spacer outward-turning section is provided with a rear spacer opening edge (51) used for being connected with the inner side of the rear end of the filling cylinder body (35).

10. The septum filling system of claim 8, wherein: the front diaphragm sleeve (45) and the rear diaphragm sleeve (46) at the two ends of the diaphragm sleeve (44) enclose the middle part of the inner cavity of the filling cylinder body (35) to form a vacuum space (47), and the vacuum space (47) is connected with a vacuum generating device through a vacuum connecting port (36) arranged on the cylinder wall of the filling cylinder body (35); and a plurality of groups of cylinder vacuum through holes are arranged on the wall of the diaphragm sleeve (44) in the vacuum space (47).