CN217516661U - Nitrogen filling structure of liquid penicillin bottle filling machine - Google Patents
Nitrogen filling structure of liquid penicillin bottle filling machine Download PDFInfo
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- CN217516661U CN217516661U CN202221383401.6U CN202221383401U CN217516661U CN 217516661 U CN217516661 U CN 217516661U CN 202221383401 U CN202221383401 U CN 202221383401U CN 217516661 U CN217516661 U CN 217516661U
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Abstract
The utility model discloses a liquid xiLin bottle liquid filling machine fill nitrogen structure, include from preceding to after establish in proper order in the frame fill before fill nitrogen module, filling station, fill after filling nitrogen module, be S-shaped fill after nitrogen curtain protection module, tamponade station, plug nitrogen gas replacement module and tamponade nitrogen gas replacement module. The front and rear nitrogen filling modules are respectively arranged on the filling needle frame and the independent lifting mechanism; the nitrogen filling modules before and after filling have the same structure and comprise nitrogen filling needle frames, nitrogen pipes, nitrogen distribution pipes, a plurality of nitrogen filling needles and a plurality of nitrogen hoses; the post-filling nitrogen curtain protection module is arranged above the post-filling penicillin bottle conveying belt and comprises a nitrogen curtain inflation groove, a nitrogen curtain baffle plate, a nitrogen curtain flow equalizing plate and two nitrogen curtain gas storage groove side walls; the rubber plug nitrogen replacement module comprises a rubber plug nitrogen curtain gas charging slot and a rubber plug nitrogen curtain gas storage slot which are arranged on the inner side of the upper plug channel; the plug nitrogen replacement module comprises a gas storage chamber, an upper plug nitrogen curtain flow equalizing plate and a lower plug nitrogen curtain flow equalizing plate. The utility model discloses can effectively reduce the incomplete oxygen volume of xiLin bottle.
Description
Technical Field
The utility model relates to a nitrogen filling structure of liquid xiLin bottle liquid filling machine.
Background
For many varieties of injectables that use a nitrogen-charging process, measuring residual oxygen content becomes critical, which has also become an important quality indicator for evaluation by injectate consistency. Therefore, many pharmaceutical factories put higher requirements on the index of residual oxygen of injections, especially on easily-oxidized preparations such as fat milk, amino acid and the like, and the residual oxygen is a main factor influencing the shelf life of the products. If the residual oxygen content in the injection does not reach the internal control standard, the product may be seriously deteriorated because the residual oxygen affects the stability of the product. Research shows that oxidation reaction taking oxygen as a substrate can be obviously inhibited by controlling the proportion of gas components in the package, so that the shelf life of the product is effectively prolonged or the storage quality is improved, and the nitrogen protection effect depends on the concentration of residual oxygen in the injection package. Aiming at the fact that the injection packaging product is a penicillin bottle, the nitrogen filling is used for achieving the lower residual oxygen quantity index of the penicillin bottle, and the problems that:
1. the diversity of filling amount causes the layout of the nitrogen filling device to be difficult;
2. how to weaken the influence of the laminar flow wind of the A-level of the isolator on the residual oxygen index after nitrogen filling replacement of the penicillin bottle before and after filling;
3. how to evenly distribute nitrogen gas during nitrogen filling before filling and nitrogen filling after filling to penicillin bottles on each station is very difficult to ensure the uniformity of single-head filling needle nitrogen gas filling amount;
4. how to ensure the uniformity of air flow at each position in the nitrogen protective curtain and the stability of nitrogen pressure at each position before plugging;
5. the complexity, space limitation and specification diversity of the mechanical structure at the top-type tamponade position make the nitrogen protection structure at the tamponade station difficult to realize;
6. the replacement of nitrogen in the bottom hole of the rubber plug at the upper plug and the nitrogen protection of the rubber plug before plugging are easy to neglect challenges for the index of residual oxygen amount.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a liquid xiLin bottle liquid filling machine's nitrogen filling structure, it can effectively reduce xiLin bottle's incomplete oxygen volume, has guaranteed the medicine quality, prolongs the shelf life of medicine.
The purpose of the utility model is realized like this: a nitrogen filling structure of a liquid penicillin bottle filling machine comprises a nitrogen filling module before filling, a filling station, a nitrogen filling module after filling, an S-shaped nitrogen curtain protecting module after filling and a plug pressing station which are sequentially arranged on a rack from front to back; a rubber plug nitrogen replacement module is arranged on an upper plug channel beside the plug pressing station; a plug nitrogen replacement module is arranged at the plug station; wherein the content of the first and second substances,
the nitrogen filling module before filling is integrated on the filling needle frame and synchronously ascends and descends along with the filling curve;
the nitrogen filling module after filling is arranged on an independent lifting mechanism; the nitrogen filling module after filling and the nitrogen filling module before filling have the same structure and comprise a nitrogen filling needle frame, a nitrogen pipe, a nitrogen distribution pipe, a plurality of nitrogen filling needles and a plurality of nitrogen hoses; wherein, the lifting mechanism is arranged on the frame; the nitrogen-filled needle frame comprises a needle frame connecting rod fixed on the lifting mechanism and a rectangular needle frame plate connected to the front end of the needle frame connecting rod, a plurality of grooves are formed in the front end surface of the needle frame plate at intervals, and the intervals of the grooves are matched with the intervals of the penicillin bottles on the penicillin bottle conveying belt and just align to the penicillin bottles on the penicillin bottle conveying belt; the nitrogen pipe is arranged on the needle frame connecting rod in a penetrating way, and one end of the nitrogen pipe is connected with the nitrogen storage tank; the nitrogen distribution pipe is fixed at the rear part of the top surface of the needle frame plate, a plurality of nitrogen distribution holes are formed in the nitrogen distribution pipe at intervals along the length direction, and two ends of the nitrogen distribution pipe are connected with the other end of the nitrogen pipe through a hose tee; the plurality of nitrogen filling needles are respectively embedded in the plurality of grooves on the needle frame plate in a one-to-one correspondence manner through the brackets; one ends of the nitrogen hoses are connected with the upper ends of the nitrogen filling needles in a one-to-one correspondence manner, and the other ends of the nitrogen hoses are connected with the nitrogen distribution holes on the nitrogen distribution pipe in a one-to-one correspondence manner;
the post-filling nitrogen curtain protection module is arranged above the post-filling penicillin bottle conveying belt and comprises a nitrogen curtain inflation groove, a nitrogen curtain baffle plate, a nitrogen curtain flow equalizing plate and two nitrogen curtain gas storage groove side walls; the nitrogen curtain aeration tank is in an inverted U shape and comprises a nitrogen curtain top plate and two aeration tank side walls connected to two side ends of the nitrogen curtain top plate; a plurality of nitrogen curtain air inlets are formed in the nitrogen curtain top plate at intervals along the conveying path of the penicillin bottles; the nitrogen curtain baffle plate is horizontally arranged in the middle of the height of the nitrogen curtain aeration tank, and ventilation gaps are reserved between the two sides of the nitrogen curtain baffle plate and the side walls of the two aeration tanks; the nitrogen curtain flow equalizing plate is bridged between the bottom surfaces of the side walls of the two aeration tanks, and a plurality of rows of air outlet holes are formed in the nitrogen curtain flow equalizing plate at intervals along the conveying path of the penicillin bottles; the side walls of the two gas storage tanks are arc curved plates which are inclined inwards, so that the bottle mouth of the penicillin bottle is positioned in the nitrogen curtain gas storage tank;
the rubber plug nitrogen replacement module comprises a rubber plug nitrogen curtain gas charging slot and a rubber plug nitrogen curtain gas storage slot which are arranged on the inner side of the upper plug channel; wherein, the center of the upper plug channel is provided with a ventilation groove aligned with the bottom groove of the rubber plug along the upper plug path; the structure of the rubber plug nitrogen curtain aeration tank is the same as that of the nitrogen curtain aeration tank; the rubber plug nitrogen curtain gas storage tank comprises a gas storage tank top plate, a U-shaped tank plate and a vertical baffle plate; the top plate of the gas storage tank is fixed on the bottom surface of the rubber plug nitrogen curtain inflation tank, and the center of the top plate of the gas storage tank is provided with a gas inlet tank along the path of the upper plug; the width of the U-shaped groove plate is equal to the sum of the width of the rubber plug nitrogen curtain air inlet groove and the width of the upper plug channel, the top end of the inner side wall of the U-shaped groove plate is connected with the inner side end of the top plate of the air storage groove, and the top end of the outer side wall of the U-shaped groove plate is connected with the outer side end of the upper plug channel; the vertical baffle plate is connected with the outer side end of the top plate of the air storage groove, and a ventilation gap is reserved between the bottom end of the vertical baffle plate and the bottom plate of the U-shaped groove plate;
the plug nitrogen replacement module comprises a gas storage chamber with a rectangular cross section, an upper plug nitrogen curtain flow equalizing plate and a lower plug nitrogen curtain flow equalizing plate; the middle part of the height of the gas storage chamber divides the gas storage chamber into a shielding nitrogen curtain gas storage chamber at the upper part and a needle-shaped nitrogen curtain gas storage chamber at the lower part through a diaphragm plate; a top plate of the shielding nitrogen curtain gas storage chamber is provided with a shielding nitrogen curtain gas inlet, and the middle part of the outer side wall of the shielding nitrogen curtain gas storage chamber is provided with an annular shielding nitrogen curtain gas jet; the upper part of the inner side wall of the needle-shaped nitrogen curtain gas storage chamber is provided with a needle-shaped nitrogen curtain gas inlet, and the middle part of the outer side wall of the needle-shaped nitrogen curtain gas storage chamber is provided with a row of needle-shaped nitrogen curtain gas nozzles; the upper pressure plug nitrogen curtain flow equalizing plate and the lower pressure plug nitrogen curtain flow equalizing plate are vertically connected to the middle part of the top surface and the middle part of the bottom surface of the diaphragm plate in a one-to-one correspondence manner; a ventilation gap is reserved between the top end of the upper plug nitrogen curtain flow equalizing plate and a top plate of the shielding nitrogen curtain gas storage chamber; and a ventilation gap is also reserved between the bottom end of the lower plug nitrogen curtain flow equalizing plate and the bottom plate of the needle-shaped nitrogen curtain gas storage chamber.
The nitrogen filling structure of the liquid penicillin bottle filling machine is characterized in that the number of the grooves in the needle frame plate is eight.
The utility model discloses a liquid xiLin bottle liquid filling machine's nitrogen filling structure has following characteristics: .
1) Nitrogen is filled before filling and after filling to carry out nitrogen replacement on air in the penicillin bottle, modules such as nitrogen curtain protection after filling before plugging, needle-shaped nitrogen curtain protection and shielding nitrogen curtain protection arranged at a plugging station, rubber plug nitrogen replacement and the like arranged on an upper plugging channel are adopted, the main process of filling liquid medicine and plugging the penicillin bottle and the whole bottle conveying channel are covered in the whole process, the medicine quality is effectively guaranteed, and the quality guarantee period of the medicine is prolonged;
2) the unique nitrogen distributing device for filling nitrogen before filling and filling nitrogen after filling and the unique labyrinth nitrogen shunting structure designed inside the nitrogen curtain ensure the uniform and stable distribution of nitrogen in each section;
3) the coanda effect principle is applied to nitrogen curtain protection, the influence of the A-level laminar flow wind of the isolator on the residual oxygen content index of the filled penicillin bottle after nitrogen filling replacement is effectively weakened, and the external laminar flow wind is led to other areas, so that the interference of the external laminar flow is shielded;
4) according to the particularity of each working section on the nitrogen demand, particularly, empty bottle nitrogen displacement before filling, liquid level headspace displacement after filling, trace displacement of residual oxygen in a groove at the bottom of a rubber plug, and different requirements on the flow and medium pressure of nitrogen, independent nitrogen pressure and flow adjusting devices can be designed for each station so as to be compatible with different requirements of each station on the nitrogen demand.
Drawings
Fig. 1 is a top view of the liquid penicillin bottle filling machine of the present invention;
fig. 2 is a schematic structural diagram of a nitrogen filling module after filling in a nitrogen filling structure of the liquid penicillin bottle filling machine of the present invention;
fig. 3 is a cross-sectional view of the nitrogen curtain protection module after filling in the nitrogen filling structure of the liquid penicillin bottle filling machine of the present invention;
fig. 4 is a cross-sectional view of the rubber plug nitrogen gas replacement module in the nitrogen gas filling structure of the liquid penicillin bottle filling machine of the present invention;
fig. 5 is a cross-sectional view of a nitrogen gas replacement module of a nitrogen filling structure of a liquid penicillin bottle filling machine.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 5, the nitrogen filling structure of the liquid penicillin bottle filling machine of the present invention includes a nitrogen filling module 1 before filling, a filling station 10, a nitrogen filling module 2 after filling, a nitrogen curtain protecting module 3 after filling and a press plug station 20, which are sequentially arranged on a frame from front to back; a rubber plug nitrogen replacement module 5 is arranged on an upper plug channel 2A beside the plug pressing station 20; the corking station 20 is provided with a corking nitrogen substitution module 4.
The nitrogen filling module 1 before filling is integrated on the filling needle frame and synchronously ascends and descends along with the filling curve, and nitrogen replacement is carried out on the empty penicillin bottle 30 before filling;
the nitrogen filling module 3 after filling is arranged on an independent lifting mechanism 21 so as to be compatible with the height requirements of different bottle types and different filling liquid levels; the nitrogen filling module 2 after filling and the nitrogen filling module 1 before filling have the same structure and comprise a nitrogen filling needle frame, a nitrogen pipe 23, a nitrogen distribution pipe 24, eight nitrogen filling needles 25, eight nitrogen hoses 26 and a hose tee 27; the nitrogen-filled needle frame comprises a needle frame connecting rod 221 fixed on the lifting mechanism 21 and a rectangular needle frame plate 222 connected to the front end of the needle frame connecting rod 221, a plurality of grooves are formed in the front end surface of the needle frame plate 222 at intervals, and the intervals of the grooves are matched with the intervals of the penicillin bottles on the penicillin bottle conveying belt and just align to the penicillin bottles 30 on the penicillin bottle conveying belt; the nitrogen pipe 23 is arranged on the needle frame connecting rod 221 in a penetrating way, and one end of the nitrogen pipe 23 is connected with the nitrogen storage tank; the nitrogen distributing pipe 24 is fixed on the back part of the top surface of the needle frame plate 222, eight nitrogen distributing holes are arranged on the nitrogen distributing pipe 24 at intervals along the length direction, and two ends of the nitrogen distributing pipe 24 are connected with the other end of the nitrogen pipe 23 through a hose tee 27; the eight nitrogen filling needles 25 are respectively embedded in the eight grooves on the needle frame plate 222 through the brackets in a one-to-one correspondence manner; one end of each of the eight nitrogen hoses 26 is connected with the upper ends of the nitrogen filling needles 25 in a one-to-one correspondence manner, and the other ends of the eight nitrogen hoses 26 are connected with the eight nitrogen distribution holes in the nitrogen distribution pipe 24 in a one-to-one correspondence manner.
The working principle of the nitrogen filling module 2 after filling and the nitrogen filling module 1 before filling is as follows: medical high-purity nitrogen 40 enters the nitrogen distribution pipe 24 through the nitrogen pipe 23 and the hose tee 27 in sequence, is sent to the eight nitrogen filling needles 25 through the eight nitrogen hoses 26, and is injected into the eight penicillin bottles 30 through the eight nitrogen filling needles 25 in a one-to-one correspondence manner, so that air replacement in an empty bottle and air replacement at the top of the liquid level in the filled bottle are realized, and the uniform and stable residual oxygen content index in each penicillin bottle 30 is ensured. The diameter of the hose tee 27 is larger than that of the nitrogen hose 26 to ensure a sufficient supply of nitrogen.
The post-filling nitrogen curtain protection module 3 is arranged above the post-filling penicillin bottle conveying belt and comprises a nitrogen curtain inflation groove 32, a nitrogen curtain baffle plate 33, a nitrogen curtain flow equalizing plate 34 and two nitrogen curtain gas storage groove side walls 35; wherein, the nitrogen curtain aeration tank 32 is in an inverted U shape and comprises a nitrogen curtain top plate 321 and two aeration tank side walls 322 connected with two side ends of the nitrogen curtain top plate 321; a plurality of nitrogen curtain air inlets 31 are arranged on the nitrogen curtain top plate 321 at intervals along the conveying path of the penicillin bottles 30; the nitrogen curtain baffle plate 33 is horizontally arranged in the middle of the height of the nitrogen curtain aeration tank 32, and ventilation gaps are reserved between the two sides of the nitrogen curtain baffle plate 33 and the side walls 322 of the two aeration tanks; the nitrogen curtain flow equalizing plate 34 is bridged between the bottom surfaces of the side walls 322 of the two aeration tanks, a plurality of rows of air outlet holes are arranged on the nitrogen curtain flow equalizing plate 34 at intervals along the conveying path of the penicillin bottles, and the number of each row of air outlet holes is three; the side walls 35 of the nitrogen curtain gas storage tank are symmetrically connected to two side ends of the nitrogen curtain flow equalizing plate 34, and form an inverted U-shaped nitrogen curtain gas storage tank together with the nitrogen curtain flow equalizing plate 34, and the two side walls 35 of the gas storage tank are both arc curved plates which are inclined inwards and have a 'coanda effect', so that the bottle mouth of the penicillin bottle 30 is positioned in the nitrogen curtain gas storage tank;
the working principle of the nitrogen curtain protection module 3 after irrigation is as follows: after filling the liquid medicine 3A into the penicillin bottle 30, conveying the liquid medicine to the position below the nitrogen curtain protection module 3 after filling; medical high-purity nitrogen gas 40 enters the nitrogen curtain inflation groove 32 from the nitrogen curtain air inlet 31, then flows into the lower part of the nitrogen curtain inflation groove 32 from the ventilation gap between the two sides of the nitrogen curtain baffle plate 33 and the side wall 322 of the inflation groove after encountering the nitrogen curtain baffle plate 33, and is filled into the penicillin bottle 30 through the air outlet hole on the nitrogen curtain flow equalizing plate 34, the air 3B at the top of the liquid level in the penicillin bottle 30 is completely replaced by the high-purity nitrogen gas 40, and meanwhile, external laminar air is guided out from the direction far away from the penicillin bottle 30 by the concave arc-shaped curved surface of the side wall 35 of the air storage groove after encountering the side wall 35 of the air storage groove, so that the external laminar air is isolated to influence the nitrogen filling effect of the penicillin bottle 30.
The rubber plug nitrogen replacement module 5 comprises a rubber plug nitrogen curtain inflation groove 52 and a rubber plug nitrogen curtain air storage groove 54 which are arranged on the inner side of the upper plug channel 2A; wherein, the center of the upper plug channel 2A is provided with a ventilation groove aligned with the bottom groove of the rubber plug 50 along the upper plug path; the structure of the rubber plug nitrogen curtain aeration tank 52 is the same as that of the nitrogen curtain aeration tank 32, and a nitrogen inlet 51 is arranged on the top plate of the rubber plug nitrogen curtain aeration tank 52; a rubber plug nitrogen curtain baffle plate 53 is arranged in the rubber plug nitrogen curtain inflation groove 52; the rubber plug nitrogen curtain gas storage tank 54 comprises a gas storage tank top plate 541, a U-shaped trough plate 542 and a vertical baffle plate 543; the gas storage tank top plate 541 is fixed on the bottom surface of the rubber plug nitrogen curtain inflation tank 52, and the center of the gas storage tank top plate 541 is provided with a gas inlet tank along the upper plug path; the width of the U-shaped groove plate 542 is equal to the sum of the width of the rubber plug nitrogen curtain air inlet groove 52 and the width of the upper plug channel 2A, so that the top end of the inner side wall of the U-shaped groove plate 542 is connected with the inner side end of the air storage tank top plate 541, and the top end of the outer side wall of the U-shaped groove plate 542 is connected with the outer side end of the upper plug channel 2A; the vertical baffle plate 543 is connected with the outer side end of the gas storage tank top plate 541, and a ventilation gap is left between the bottom end of the vertical baffle plate 543 and the bottom plate of the U-shaped tank plate 542.
Considering that oxygen exists in the bottom groove of the rubber plug 50 in the upper plug channel 2A before entering the corking station 20, which affects the residual oxygen index of the penicillin bottle 20, it is necessary to perform nitrogen replacement and shielding on the air in the bottom groove of the rubber plug 50 in the upper plug channel 2A.
The working principle of the rubber plug nitrogen replacement module 5 is as follows: the high-purity nitrogen gas 40 enters the rubber plug nitrogen curtain inflation groove 52 from the rubber plug nitrogen gas inlet 51, is diffused to the periphery on the surface of the rubber plug nitrogen curtain inflation groove after passing through the rubber plug nitrogen curtain baffle plate 53, so that the nitrogen gas in the rubber plug nitrogen curtain inflation groove 52 is uniformly distributed, then enters the rubber plug nitrogen curtain inflation groove 54 through the gas inlet groove formed in the gas storage groove top plate 541, enters the lower part of the upper plug channel 2A through the vertical baffle plate 543, and finally slowly overflows through the gas permeable groove in the upper plug channel 2A to replace residual oxygen in the groove at the bottom of the rubber plug 50. The specially designed rubber plug hole nitrogen replacement module 5 prevents oxygen hidden in the bottom groove of the rubber plug 50 from being introduced into the penicillin bottle 30, and effectively reduces the residual oxygen amount in the penicillin bottle.
The plug nitrogen replacement module 4 comprises a gas storage chamber with a rectangular cross section, an upper plug nitrogen curtain flow equalizing plate and a lower plug nitrogen curtain flow equalizing plate; wherein, the middle part of the height of the gas storage chamber is divided into a shielding nitrogen curtain gas storage chamber 42 at the upper part and a needle-shaped nitrogen curtain gas storage chamber 44 at the lower part by a transverse clapboard 45; a shielding nitrogen curtain air inlet 41 is formed in the top plate of the shielding nitrogen curtain air storage chamber 44, and an annular shielding nitrogen curtain air jet port 420 is formed in the middle of the outer side wall of the shielding nitrogen curtain air storage chamber 42; the upper part of the inner side wall of the needle nitrogen curtain gas storage chamber 44 is provided with a needle nitrogen curtain gas inlet 43, and the middle part of the outer side wall of the needle nitrogen curtain gas storage chamber is provided with a row of needle nitrogen curtain gas nozzles 440; the upper plug nitrogen curtain flow equalizing plate 46 and the lower plug nitrogen curtain flow equalizing plate 47 are vertically connected to the middle of the top surface and the middle of the bottom surface of the diaphragm plate 45 in a one-to-one correspondence manner, a ventilation gap is reserved between the top end of the upper plug nitrogen curtain flow equalizing plate 46 and the top plate of the shielding nitrogen curtain gas storage chamber 42, and a ventilation gap is also reserved between the bottom end of the lower plug nitrogen curtain flow equalizing plate 47 and the bottom plate of the needle nitrogen curtain gas storage chamber 44.
The penicillin bottle 30 filled with the liquid medicine 3A is transferred to the corking station 20 by the star wheel under the continuous protection of the nitrogen filling module 2 and the nitrogen curtain protection module 3, in order to replace the outside air which is unintentionally introduced during the process, the high-purity nitrogen 40 with pressure regulation is accessed to the shielding nitrogen curtain air inlet 41 and the needle nitrogen curtain air inlet 43, and the high-purity nitrogen 40 respectively passes through the upper corking nitrogen curtain flow equalizing plate 46 and the lower corking nitrogen curtain flow equalizing plate 47 and then diffuses towards the periphery on the surface of the shielding nitrogen curtain air inlet 41 and the needle nitrogen curtain air inlet 43, so that air sources at all positions inside the shielding nitrogen curtain air storage chamber 42 and the needle nitrogen curtain air storage chamber 44 are uniformly distributed and injected above the liquid level of the liquid medicine 3A of the penicillin bottle 30 through the needle nitrogen curtain air injection port 440, the liquid medicine 3A in the penicillin bottle 30 can be continuously protected by the nitrogen 40 in the whole corking link, meanwhile, the annular shielding nitrogen curtain air injection port 420 is designed above the bottle mouth of the penicillin bottle 30, and can shield the negative interference of the outside laminar flow to the corking process in the whole corking process, ensuring the quality of the medicine.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (2)
1. A nitrogen filling structure of a liquid penicillin bottle filling machine comprises a nitrogen filling module before filling, a filling station, a nitrogen filling module after filling, an S-shaped nitrogen curtain protecting module after filling and a plug pressing station which are sequentially arranged on a rack from front to back; a rubber plug nitrogen replacement module is arranged on an upper plug channel beside the plug pressing station; a plug nitrogen replacement module is arranged at the plug station; it is characterized in that the preparation method is characterized in that,
the nitrogen filling module before filling is integrated on the filling needle frame and synchronously ascends and descends along with the filling curve;
the nitrogen filling module after filling is arranged on an independent lifting mechanism; the nitrogen filling module after filling and the nitrogen filling module before filling have the same structure and comprise a nitrogen filling needle frame, a nitrogen pipe, a nitrogen distribution pipe, a plurality of nitrogen filling needles and a plurality of nitrogen hoses; wherein, the lifting mechanism is arranged on the frame; the nitrogen-filled needle frame comprises a needle frame connecting rod fixed on the lifting mechanism and a rectangular needle frame plate connected to the front end of the needle frame connecting rod, a plurality of grooves are formed in the front end surface of the needle frame plate at intervals, and the intervals of the grooves are matched with the intervals of the penicillin bottles on the penicillin bottle conveying belt and just align to the penicillin bottles on the penicillin bottle conveying belt; the nitrogen pipe is arranged on the needle frame connecting rod in a penetrating way, and one end of the nitrogen pipe is connected with the nitrogen storage tank; the nitrogen distribution pipe is fixed at the rear part of the top surface of the needle frame plate, a plurality of nitrogen distribution holes are formed in the nitrogen distribution pipe at intervals along the length direction, and two ends of the nitrogen distribution pipe are connected with the other end of the nitrogen pipe through a hose tee; the plurality of nitrogen filling needles are respectively embedded in the plurality of grooves on the needle frame plate in a one-to-one correspondence manner through the brackets; one ends of the plurality of nitrogen hoses are connected with the upper ends of the plurality of nitrogen filling needles in a one-to-one correspondence manner, and the other ends of the plurality of nitrogen hoses are connected with the plurality of nitrogen distribution holes on the nitrogen distribution pipe in a one-to-one correspondence manner;
the post-filling nitrogen curtain protection module is arranged above the post-filling penicillin bottle conveying belt and comprises a nitrogen curtain inflation groove, a nitrogen curtain baffle plate, a nitrogen curtain flow equalizing plate and two nitrogen curtain gas storage groove side walls; the nitrogen curtain aeration tank is in an inverted U shape and comprises a nitrogen curtain top plate and two aeration tank side walls connected to two side ends of the nitrogen curtain top plate; a plurality of nitrogen curtain air inlets are formed in the nitrogen curtain top plate at intervals along the conveying path of the penicillin bottles; the nitrogen curtain baffle plate is horizontally arranged in the middle of the height of the nitrogen curtain inflatable grooves, and ventilation gaps are reserved between the two sides of the nitrogen curtain baffle plate and the side walls of the two inflatable grooves; the nitrogen curtain flow equalizing plate is bridged between the bottom surfaces of the side walls of the two aeration tanks, and a plurality of rows of air outlet holes are formed in the nitrogen curtain flow equalizing plate at intervals along the conveying path of the penicillin bottles; the side walls of the two gas storage tanks are arc curved plates which are inclined inwards, so that the bottle mouth of the penicillin bottle is positioned in the nitrogen curtain gas storage tank;
the rubber plug nitrogen replacement module comprises a rubber plug nitrogen curtain inflation groove and a rubber plug nitrogen curtain gas storage groove which are arranged on the inner side of the upper plug channel; wherein, the center of the upper plug channel is provided with a ventilation groove aligned with the bottom groove of the rubber plug along the upper plug path; the structure of the rubber plug nitrogen curtain aeration tank is the same as that of the nitrogen curtain aeration tank; the rubber plug nitrogen curtain gas storage tank comprises a gas storage tank top plate, a U-shaped tank plate and a vertical baffle plate; the top plate of the gas storage tank is fixed on the bottom surface of the rubber plug nitrogen curtain inflation tank, and the center of the top plate of the gas storage tank is provided with a gas inlet tank along the path of the upper plug; the width of the U-shaped groove plate is equal to the sum of the width of the rubber plug nitrogen curtain air inlet groove and the width of the upper plug channel, the top end of the inner side wall of the U-shaped groove plate is connected with the inner side end of the top plate of the air storage groove, and the top end of the outer side wall of the U-shaped groove plate is connected with the outer side end of the upper plug channel; the vertical baffle plate is connected with the outer side end of the top plate of the air storage groove, and a ventilation gap is reserved between the bottom end of the vertical baffle plate and the bottom plate of the U-shaped groove plate;
the plug nitrogen replacement module comprises a gas storage chamber with a rectangular cross section, an upper plug nitrogen curtain flow equalizing plate and a lower plug nitrogen curtain flow equalizing plate; the middle part of the height of the gas storage chamber divides the gas storage chamber into a shielding nitrogen curtain gas storage chamber at the upper part and a needle-shaped nitrogen curtain gas storage chamber at the lower part through a diaphragm plate; a top plate of the shielding nitrogen curtain gas storage chamber is provided with a shielding nitrogen curtain gas inlet, and the middle part of the outer side wall of the shielding nitrogen curtain gas storage chamber is provided with an annular shielding nitrogen curtain gas nozzle; the upper part of the inner side wall of the needle-shaped nitrogen curtain gas storage chamber is provided with a needle-shaped nitrogen curtain gas inlet, and the middle part of the outer side wall of the needle-shaped nitrogen curtain gas storage chamber is provided with a row of needle-shaped nitrogen curtain gas nozzles; the upper pressure plug nitrogen curtain flow equalizing plate and the lower pressure plug nitrogen curtain flow equalizing plate are vertically connected to the middle part of the top surface and the middle part of the bottom surface of the diaphragm plate in a one-to-one correspondence manner; a ventilation gap is reserved between the top end of the upper plug nitrogen curtain flow equalizing plate and a top plate of the shielding nitrogen curtain gas storage chamber; and a ventilation gap is also reserved between the bottom end of the lower plug nitrogen curtain flow equalizing plate and the bottom plate of the needle-shaped nitrogen curtain gas storage chamber.
2. The nitrogen dosing structure of a liquid penicillin bottle filling machine as claimed in claim 1, wherein the number of the grooves on said needle rack plate is eight.
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| CN202221383401.6U CN217516661U (en) | 2022-06-02 | 2022-06-02 | Nitrogen filling structure of liquid penicillin bottle filling machine |
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| CN202221383401.6U CN217516661U (en) | 2022-06-02 | 2022-06-02 | Nitrogen filling structure of liquid penicillin bottle filling machine |
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