A high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag

Abstract

The present invention relates to the technical field of medical device packaging, and specifically relates to a high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag, which includes an outer bag and an infusion bag. The infusion bag is located inside the outer bag. An infusion bag combined cap is provided on the infusion bag. The outer bag is made by heat-sealing two layers of composite films. The composite films are divided into composite film one and composite film two. The composite film is a high-barrier semi-transparent film. A perspective window is provided on composite film one. A hanging hole is provided at one end of the outer bag, and a tear line is provided at the other end. By making the outer bag with a high-barrier semi-transparent composite film and printing a perspective window on the outer bag, when medical staff perform intravenous drip on a patient with a photosensitive drug, the medical staff can directly observe the remaining amount of the internal liquid medicine, solving the problem that when performing intravenous drip of a photosensitive drug, the medical staff cannot observe the remaining amount of the liquid medicine inside the composite bag and may pull out the infusion tube in advance, resulting in waste of the liquid medicine.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device packaging, and particularly to a high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag. Background Technique

[0002] Light is the activation energy necessary for chemical reactions, which can cause many drugs to undergo oxidation, degradation, isomerization, polymerization and other reactions, resulting in invalidation or even generation of toxic substances. For example, when sodium nitroprusside is intravenously infused, if the infusion is carried out under light, the sodium nitroprusside in the vein will start to decompose, and toxic hydrogen cyanide and Prussian blue will be generated. Therefore, to ensure the efficacy and safety of patients during medication, photosensitive drugs need to be protected from light during intravenous infusion.

[0003] Intravenous infusion is divided into bottled infusion and bagged infusion. Currently, photosensitive bagged infusion drugs are usually packaged in completely opaque aluminum-plastic composite bags. During use, medical staff cannot observe the remaining amount of the liquid medicine inside the composite bag. When performing intravenous infusion, medical staff judge the remaining amount of the liquid medicine inside the composite bag according to the weight of the composite bag, which may lead to inaccurate judgment and waste of some liquid medicine. When infusing some drugs with a small dose, the proportion of this part of drug waste will be relatively large, resulting in a significant reduction in the efficacy of drug treatment. For example, when performing epirubicin intravenous infusion, 50 mg of the drug needs to be dissolved in 25 ml - 50 ml of normal saline for intravenous infusion. If the liquid medicine is lost due to incorrect judgment, the efficacy of drug infusion will be greatly reduced. If the injection is not stopped in time, it will cause blood reflux in the patient and harm the patient.

[0004] Therefore, in order to facilitate medical staff to observe the remaining amount of the liquid medicine inside the composite bag during the intravenous infusion of photosensitive drugs, a high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag. By making the outer bag of a high-barrier semi-transparent composite film and printing a perspective window on the outer bag, when medical staff perform intravenous infusion on patients with photosensitive drugs, medical staff can directly observe the remaining amount of the internal liquid medicine, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A high-barrier aluminum-plastic composite bag with a perspective window, comprising an outer bag and an infusion bag. The infusion bag is placed inside the outer bag. An infusion bag combination cap is heat-sealed on the infusion bag. The outer bag is made by heat-sealing two layers of composite film. The composite film is divided into composite film one and composite film two. Both layers of the composite film are high-barrier semi-transparent films, and the materials used for both layers of the composite film are the same. The composite film is divided into four layers. The outer layer is polyurethane, the second layer is an ink layer, the third layer is polyurethane, and the fourth layer is polyethylene. The main materials of the ink layer include polyurethane resin, titanium dioxide, and aluminum powder. Among them, titanium dioxide and aluminum powder are used as light-shielding agents. A perspective window is provided on the composite film one by printing. A hanging hole is provided at one end of the outer bag, and a tear line is provided at the other end of the outer bag.

[0008] The composite film uses two layers of polyurethane to wrap the ink layer, making the produced composite film have high barrier properties and a semi-transparent effect. By setting the outer bag as a high-barrier semi-transparent film, when medical staff perform intravenous drip infusion on patients with photosensitive drugs, they can directly observe the remaining amount of the internal liquid medicine, avoiding the waste of liquid medicine caused by misjudgment due to the inability of medical staff to observe the remaining amount of the liquid medicine in the bag. And patterns can be printed on the outside of the composite film, and a perspective window is left. In this way, not only can the remaining amount of the liquid medicine in the bag be observed, but also it has a certain aesthetic appearance, and the manufacturer can also print trademarks on it; a hanging hole is also provided on the outer bag. During intravenous drip infusion, it can be directly hung on the infusion hook, avoiding the risk of the composite bag falling off during clinical use. A tear line is also provided at the bottom of the outer bag. During clinical use, directly pull open the tear line of the outer bag, and the infusion bag combination cap will directly slide down and leak under the action of gravity, and medical staff can directly perform the infusion operation, which is more convenient to use.

[0009] In the present invention, the infusion bag combination cap can adopt a negative pressure connector or a positive pressure connector. When using the positive pressure connector, it needs to be connected to a micro air pump, and the use process is relatively troublesome. Using the negative pressure connector can be directly used in connection with the infusion tube, and the use is more convenient. When using the positive pressure connector, the residual liquid medicine inside the infusion bag can be flushed by pumping the solvent through the micro air pump, diluting the internal liquid medicine and dripping it again, which can avoid the waste of liquid medicine.

[0010] A manufacturing device for a high-barrier aluminum-plastic composite bag with a perspective window, comprising an unwinder, a printing press, a dryer, a heat sealer, a scoring machine, a punching machine and a cutting machine. The arrangement order of the unwinder, the printing press, the dryer, the heat sealer, the scoring machine, the punching machine and the cutting machine is successively the unwinder, the printing press, the dryer, the heat sealer, the scoring machine, the punching machine and the cutting machine. The unwinder, the printing press, the dryer, the heat sealer, the scoring machine, the punching machine and the cutting machine are all fixedly installed on the ground through anchor bolts. The cutting machine is an existing guillotine cutting machine, which is used to cut and separate the heat-sealed outer bag. The scoring machine is a laser scoring machine in the prior art, which is used to score an easy-tear line on the outer bag. The heat sealer is an existing heat sealer for heat-sealing composite bags, which is used to heat-seal two composite films and divide the two composite films into multiple outer bags. The printing press is an existing intaglio printing press, which is used to print patterns or trademarks on the composite film. The punching machine is a pneumatic punching machine in the prior art, which is used to make hanging holes on the composite bag. There are two unwinding racks on the unwinder, and the composite film rolls are placed on the unwinding racks;

[0011] During use, pull out the composite film roll so that the composite film bypasses the printing press, the dryer, the heat sealer, the scoring machine, the punching machine and the cutting machine. The composite film is first printed by the printing press, the printed ink on the composite film is dried by the dryer, then the two composite films are heat-sealed by the heat sealer, then an easy-tear line is scored by the scoring machine, then hanging holes are punched by the punching machine, and finally the composite film is cut by the cutting machine, and a high-barrier outer bag can be obtained;

[0012] The printing press includes a frame, a feeding roller and an extrusion roller are rotatably installed on the frame. The feeding roller is driven by a motor. There is a non-printing area on the feeding roller with the same shape as the perspective window, and there are multiple V-shaped pits on the feeding roller in the printing area. A ink fountain is installed on the frame through bolts, and printing ink is stored in the ink fountain. At least 1 / 4 - 1 / 3 of the volume of the feeding roller is immersed in the printing ink. There is a tool rest on the frame, and a scraper is installed on the tool rest, and the scraper is in close contact with the feeding roller;

[0013] During use, bypass the composite film around the extrusion roller so that the composite film is located between the extrusion roller and the feeding roller. Drive the feeding roller to rotate through the motor. Since at least 1 / 4 - 1 / 3 of the volume of the feeding roller is immersed in the printing ink, the printing ink inside the ink fountain adheres to the surface of the feeding roller. The scraper is in close contact with the feeding roller, so that the scraper scrapes off the printing ink in the non-printing area, and the printing ink in the printing area is located inside the pits and cannot be scraped off by the scraper. When the composite film contacts the feeding roller, the composite film adsorbs the printing ink in the printing area onto the surface of the composite film, and the printed ink on the composite film is dried, thereby realizing the printing of the composite film. By setting a non-printing area on the feeding roller with the same size as the perspective window of the outer bag, the manufacturing device in the present invention can produce a high-barrier composite bag with a perspective window.

[0014] Preferably, a cleaning device for cleaning impurities accumulated on the blade is provided on the tool rest. The cleaning device includes a suction nozzle threadedly connected to the tool rest. The suction nozzle and the blank area are located in the same vertical plane. The suction nozzle is in close contact with the lower surface of the blade. The suction nozzle is connected to a vacuum device through an air pipe.

[0015] During the use process, dust in the air will enter the printing ink, and particulate solids will precipitate from the printing ink during use. During the working process, these solid impurities will be adsorbed on the feeding roller, causing solid particulate impurities to accumulate at the blade during the process of cleaning the printing ink, resulting in the blade not being able to fit completely with the feeding roller. This will cause water ink lines to appear in the perspective window during the printing process of the composite film, and further cause the outer bags produced not to meet the production requirements. The intaglio printing speed is usually 300 m / min. If water ink lines appear on the composite film, a large number of unqualified outer bags will be produced. By setting a suction nozzle at the blade and connecting the suction nozzle to a vacuum device, the vacuum device can be a vacuum tank or a vacuum pump. The impurities accumulated at the blade are cleaned by vacuum suction, thus avoiding the accumulation of particulate impurities at the blade and affecting the printing of the composite film.

[0016] Preferably, a control component for controlling the suction of the suction nozzle in the blank area is provided on the air pipe. The control component includes a connecting block. The connecting block is installed on the frame by bolts. A channel is provided inside the connecting block. One end of the channel is connected to the suction nozzle, and the other end of the channel is connected to the vacuum device. An activity channel communicating with the channel is provided inside the connecting block. A moving block is slidably installed inside the activity channel. A driving component for ensuring that the movement frequency of the moving block is the same as the rotation frequency of the feeding roller is connected to the moving block.

[0017] During the use process, the moving block is driven by the driving component. When the blade is in the printing ink area, the moving block blocks the channel and stops cleaning the impurities. When the blade is in the blank area, the moving block moves away from the channel, and the suction nozzle starts to work, causing the suction nozzle to only clean the impurities in the blank area, thus avoiding the suction nozzle sucking the printing ink in the printed area and affecting the printing of the printing machine.

[0018] The driving component includes a first gear fixedly installed on the feeding roller and a second gear installed on the frame. The second gear is rotatably installed on the frame through a bearing. The first gear and the second gear mesh with each other. A turntable is key-connected to the second gear. A power rod is provided on the turntable. One end of the power rod is rotatably installed on the turntable through a pin, and the other end is rotatably connected to the moving block through a pin.

[0019] The rotation of the feeding rod drives the rotation of Gear 1, which in turn drives the rotation of Gear 2 through Gear 1. The rotation of Gear 2 drives the rotation of the turntable and the swinging of the power rod, causing the moving block to reciprocate inside the movable track. The moving block intermittently blocks the channel, causing the suction nozzle to be intermittently connected to the vacuum device, resulting in the intermittent operation of the suction nozzle. Through the transmission of Gear 1 and Gear 2, the working frequency of the suction nozzle is ensured to be the same as the rotation frequency of the feeding rod.

[0020] In the present invention, the drive assembly can also use a stepper motor to drive Gear 2. However, when the drive assembly and the feeding rod are driven by two different drive sources respectively, there will be a slight error in control, causing the working area of the suction nozzle to gradually deviate from the non-graphic area. After a long period of use, it needs to be adjusted.

[0021] Preferably, a rack is slidably mounted on the tool rest by means of a slider and rail connection. The scraping knife is installed on the rack by bolts. A motor is installed above the tool rest by screws. The output shaft of the motor is key-connected to a Gear 3 that meshes with the rack. The ratio of the width of the suction nozzle to the width of the non-graphic area is between 1 / 3 and 1 / 2.

[0022] When the suction nozzle is larger than or close to the size of the non-graphic area, the suction nozzle will suck the printing ink on the graphic area, resulting in the loss of some printing ink in the graphic area and affecting the printing of the composite film. Therefore, the ratio of the width of the suction nozzle to the width of the non-graphic area is between 1 / 3 and 1 / 2. By setting a slidable rack on the tool rest and fixing the scraping knife on the rack, the rack is driven to reciprocate on the tool rest by the motor driving Gear 3, causing the scraping knife to reciprocate on the surface of the feeding rod, enabling the suction nozzle to suck the impurities on the scraping knives on both sides of the suction nozzle. The scraping knife is made of a soft alloy. During use, due to the presence of particulate impurities on the surface of the scraping knife and the different accumulation degrees of the impurities, local wear of the scraping knife will occur. When the scraping knife moves on the feeding rod, the place where the scraping knife wears more seriously will shift, thus avoiding local wear of the scraping knife.

[0023] Preferably, a pressing roller is rotatably mounted above the tool rest by a dowel pin. The pressing roller is in close contact with the upper surface of the scraping knife. A fastening nut is threadedly connected to the dowel pin.

[0024] When the nozzle is instantaneously connected to the vacuum device, under the rapid change of pressure, the nozzle will generate a certain vibration. The vibration of the nozzle will drive the vibration of the squeegee, resulting in the squeegee being unable to fit with the feeding roller, so that the squeegee cannot process the printing ink in the non-graphic area, thus affecting the printing of the subsequent composite bag. Therefore, in order to avoid the influence of the nozzle vibration on the fitting of the squeegee and the feeding roller, a pressing roller is rotatably installed above the tool rest. The pressing roller is in close contact with the upper surface of the squeegee, so that the pressing roller always presses the squeegee to prevent the squeegee from tilting due to vibration. During the use process, due to the wear of the squeegee, it is necessary to frequently adjust the angle of the squeegee. When the angle of the squeegee changes, the pressing force of the pressing roller on the squeegee changes. Excessive pressure will accelerate the wear of the hanging bucket and even damage the feeding roller, and too little pressure cannot press the squeegee tightly. By threadedly connecting a fastening nut on the pin, the pressing force of the pressing roller can be adjusted by loosening the fastening nut, and then the pressing roller is fixed by tightening the fastening nut, thereby realizing the adjustment of the pressing force of the pressing roller on the squeegee.

[0025] Preferably, a plurality of balls are rollingly embedded on the pressing roller; by rollingly embedding a plurality of balls on the pressing roller, it is avoided that the squeegee generates a large frictional force with the pressing roller during the moving process and deforms, resulting in the squeegee being unable to fit with the feeding roller and affecting the printing of the composite film.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. For the high-barrier aluminum-plastic composite bag with a perspective window and the device for manufacturing the composite bag of the present invention, by making the outer bag with a high-barrier semi-transparent composite film and printing a perspective window on the outer bag, when medical staff perform intravenous drip on a patient with a photosensitive drug, the remaining situation of the internal liquid medicine can be directly observed. A hanging hole is also provided on the outer bag. During intravenous drip, it can be directly hung on the infusion hook, avoiding the risk of the shading bag falling off during clinical use. An easy tear line is also provided below the outer bag. During clinical use, the easy tear line of the outer bag is directly opened, and the combined cover of the infusion bag directly slides down and leaks under the action of gravity, and medical staff can directly perform the infusion operation, which is more convenient to use.

[0028] 2. For the high-barrier aluminum-plastic composite bag with a perspective window and the device for manufacturing the composite bag of the present invention, by arranging a nozzle below the squeegee, the nozzle is connected to the vacuum device through a connecting block, and the moving block is intermittently blocked by the control component to block the channel, so that the nozzle only adsorbs impurities in the non-graphic area, and the squeegee is controlled to move left and right through the gear rack, solving the problem that impurities accumulate on the squeegee and affect the printing of the composite film, improving the printing performance of the composite film, and the movement of the squeegee can avoid local wear of the squeegee due to uneven force, and improving the service life of the squeegee.

[0029] 3. A high-barrier aluminum-plastic composite bag with a perspective window and a device for manufacturing the composite bag according to the present invention are provided. By arranging a pressing roller on the tool rest, when in use, the pressing roller presses the scraping knife tightly, avoiding the problem that the scraping knife cannot fit with the feeding roller due to the vibration generated by the intermittent connection of the suction nozzle to the vacuum device, which affects the printing of the composite film. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the composite bag of the present invention;

[0031] Figure 2 is a cross-sectional view of the composite bag of the present invention;

[0032] Figure 3 is a front view of the overall structure of the device for manufacturing the composite bag of the present invention;

[0033] Figure 4 is a rear view of the overall structure of the device for manufacturing the composite bag of the present invention;

[0034] Figure 5 is a side view partial cross-sectional view of the device for manufacturing the composite bag of the present invention;

[0035] Figure 6 Of the present invention Figure 5 Cross-sectional view of the A-A section;

[0036] Figure 7 Of the present invention Figure 5 Partial enlarged view at B;

[0037] Figure 8 Of the present invention Figure 5 Partial enlarged view at C;

[0038] Figure 9 Of the present invention Figure 7 Partial enlarged view at D.

[0039] In the figure: 1. Outer bag; 101. Composite film; 1011. Composite film one; 1012. Composite film two; 102. Hanging hole; 103. Perspective window; 104. Easy tear line; 2. Infusion bag; 201. Infusion bag combined cap; 3. Unwinder; 4. Printing press; 401. Frame; 402. Pressing roller; 403. Feeding roller; 4031. Area without figure; 4032. Area with figure; 404. Ink fountain; 405. Tool rest; 4051. Motor; 4052. Gear three; 4053. Rack; 406. Scraping knife; 407. Suction nozzle; 408. Extrusion roller; 4081. Ball; 5. Connecting block; 501. Channel; 502. Movable channel; 503. Moving block; 6. Driving assembly; 601. Gear one; 602. Gear two; 603. Turntable; 604. Power rod; 7. Heat sealer; 8. Line engraving machine; 9. Punching machine; 10. Cutting machine; 11. Dryer. Detailed implementation mode

[0040] Example 1 is as follows Figures 1 to 9 As shown, this example is used for drug infusion with a solute-to-solvent ratio greater than 0.5, specifically as follows:

[0041] A high-barrier aluminum-plastic composite bag with a perspective window, comprising an outer bag 1 and an infusion bag 2. The outer bag 1 is made by heat-sealing two layers of composite film 101. The composite film 101 is divided into composite film one 1011 and composite film two 1012. The composite film 101 is a high-barrier semi-transparent composite film 101. A perspective window 103 is provided on the composite film one 1011 by printing. One end of the outer bag 1 is provided with a hanging hole 102, and the other end of the outer bag 1 is provided with a tear line 104. The infusion bag 2 is arranged inside the outer bag 1. The infusion bag 2 is a non-PVC composite soft bag. The infusion bag 2 is provided with an infusion bag combination cap 201. The combination cap uses a positive pressure connector. The infusion bag combination cap 201 is located on one side of the tear line 104 of the outer bag 1.

[0042] Before clinical use, the outer bag 1 is torn along the tear line 104. The internal infusion bag combination cap 201 directly slides down and leaks under the action of gravity. Then, it is hung on the infusion stand through the hanging hole 102. The combination cap is connected to a micro air pump, and medical staff can perform intravenous drip treatment on the patient. During the treatment process, medical staff can observe the remaining amount of the internal liquid medicine through the perspective window 103, without having to judge the remaining amount of the liquid medicine inside the infusion bag 2 according to the weight, thus avoiding waste of the liquid medicine and being able to disconnect the infusion tube in time to avoid the backflow of the patient's blood. After the drip is completed, there is liquid medicine residue inside the infusion bag 2. Since the ratio of the solute to the solvent is relatively large, the wasted liquid medicine will lead to insufficient drug dosage and affect the treatment of the patient. The solvent is sucked by the micro air pump to wash the inside of the infusion bag 2 to avoid waste of the remaining drugs inside.

[0043] A manufacturing device for a high-barrier aluminum-plastic composite bag with a perspective window, comprising an unwinder 3, a printing press 4, a dryer 11, a heat sealer 7, a scoring machine 8, a punching machine 9 and a cutting machine 10. The arrangement order of the unwinder 3, the printing press 4, the dryer 11, the heat sealer 7, the scoring machine 8, the punching machine 9 and the cutting machine 10 is in turn the unwinder 3, the printing press 4, the dryer 11, the heat sealer 7, the scoring machine 8, the punching machine 9, the cutting machine 10. The unwinder 3, the printing press 4, the dryer 11, the heat sealer 7, the scoring machine 8, the punching machine 9 and the cutting machine 10 are all fixedly installed on the ground through anchor bolts. The cutting machine 8 is an existing guillotine cutting machine, used for cutting and separating the heat-sealed outer bag 1. The scoring machine 8 is a laser scoring machine in the prior art, used for scoring a tear line 104 on the outer bag 1. The heat sealer 7 is an existing heat sealer for heat-sealing composite bags, used for heat-sealing two layers of composite films 101 and dividing the two layers of composite films 101 into multiple outer bags 1. The printing press 4 is an existing intaglio printing press, and the printing press 4 is used for printing patterns or trademarks on the composite film 101. The punching machine 9 is a pneumatic punching machine in the prior art, used for making hanging holes 102 on the composite bag. There are two unwind stands on the unwinder 3. The upper unwind stand is used for placing the composite film 101. The printing press 4 includes a frame 401. A feeding roller 403 and a pressing roller 408 are rotatably installed on the frame 401. The feeding roller 403 is driven by a stepping motor 4051. There is a blank area 4031 on the feeding roller 403 with the same shape as the perspective window. The width of the blank area 4031 is 2 cm, and the diameter of the suction nozzle 407 is 1 cm. There is a patterned area 4032 with multiple V-shaped pits on the feeding roller 403. A ink fountain 404 is installed on the frame 401 through bolts. Printing ink is stored in the ink fountain 404. At least 1 / 4 of the volume of the feeding roller 403 is immersed in the printing ink. A knife rest 405 is provided on the frame 401, and a doctor blade 406 is installed on the knife rest 405, and the doctor blade 406 is in close contact with the feeding roller 403;

[0044] Before work, place two bundles of composite films 101 on the unwinding racks. Composite film one 1011 is placed on the upper unwinding rack, and composite film two 1012 is placed on the lower unwinding rack. Then, respectively pass the two bundles of composite films 101 around the printing machine 4, dryer 11, heat sealer 7, scoring machine 8, punching machine 9, and cutting machine 10. The two layers of heat-sealing molds are completely adhered at the heat sealer 7 to the cutting machine 10. Then, adjust the edge positions of the two layers of composite films 101 to align the edge positions of the two layers of composite films 101. Two places of printing can be carried out inside the printing machine 4. The upper surface of composite film one 1011 is printed, and the lower surface of composite film two 1012 is printed. There is no image area on the feeding roller 403 above the printing machine 4, and there is no image area 4031 on the feeding roller 403 below the printing machine 4. During the production of the outer bag 1, the perspective window 103 is always located above the composite bag, facilitating the observation of printing faults during production. After installing the composite film 101, adjust the squeegee 406 so that the tangent angle between the squeegee 406 and the feeding roller 403 is 60°. After the squeegee 406 is completely adhered to the feeding roller 403, loosen the locking nut so that the pressing roller 402 can swing on the tool rest 405, making the pressing roller 402 close to the squeegee 406. Observe the pressing degree of the pressing roller 402 by the operator to judge the pressure of the pressing roller 402, and then tighten the locking nut again. Connect the channels 501 of the connecting block 5 to the suction nozzle 407 and the vacuum device respectively. Then, add printing ink to the ink fountain 404. Then, turn on the heat sealer 7 for preheating. After preheating for 15 minutes, it can be started for work.

[0045] At the beginning of work, the vacuum device is not turned on first. First, observe whether the composite film 101 will produce wrinkles. If there are wrinkles, it is necessary to stop the machine immediately to adjust the tension of the composite film 101. When it is confirmed that there are no wrinkles, observe whether there are problems with the printing of the composite film 101. If the printing is poor, stop the machine immediately to adjust the pressing force of the squeegee 406 and the pressing force of the pressing roller 402. During this process, it is also necessary to observe whether the two layers of composite films 101 are well heat-sealed. If the two layers of composite films 101 cannot be adhered, it is necessary to increase the temperature of the heat-sealing device and preheat for 10 minutes before starting. If there is a coking phenomenon at the heat-sealed part of the two layers of composite films 101, it means that the temperature of the heat sealer 7 is too high. It is necessary to stop the machine to lower the temperature of the heat-sealing device and cool down for 10 minutes. After the temperature is stable, turn on the machine again. If there is no fault, the machine can be started stably.

[0046] During the working process, the composite film 101 is conveyed to the cutting machine 10. After being printed by the printing machine 4, the printed ink is dried by the dryer. Then, the two layers of the composite film 101 are heat-sealed by the heat-sealing machine 7. After that, the tear line 104 is engraved on the outer bag 1 by the scoring machine 8. Next, the hanging hole 102 is punched on the outer bag 1 by the punching machine 9. Finally, the cutting machine 10 cuts a plurality of connected outer bags 1, and the production of the outer bag 1 with a barrier window can be completed. During the production process, the feeding roller 403 rotates to adsorb the printing ink inside the ink fountain 404. The rotation of the feeding roller 403 drives the rotation of the first gear 601. Through gear meshing, the second gear 602 is driven to rotate. Both ends of the power rod 604 are rotatably connected to the moving block 503 and the turntable 603 respectively, causing the power rod 604 to pull the moving block 503 to move reciprocally inside the movable track 502. When the blank area 4031 rotates to the blade 406, the moving block 503 leaves the channel 501. At this time, the suction nozzle 407 is connected to the vacuum device to suck the impurities on the blade 406, avoiding the accumulation of impurities. The width of the blank area 4031 is 2 cm, and the diameter of the suction nozzle 407 is 1 cm. During this process, the motor 4051 drives the rack 4053 to move reciprocally on the tool holder 405 through the third gear 4052, causing the blade 406 to move along with the rack 4053. The moving distance of the blade 406 in one cycle of the rotation of the feeding roller 403 is 0.5 cm, and the maximum moving stroke of the blade 406 is 5 cm. By moving, the impurities on the blade 406 around the suction nozzle 407 are cleaned to avoid the generation of water ink lines in the blank area 4031.

[0047] Embodiment 2, as Figures 1 to 9 shown, this embodiment is used for the drug infusion with the solute-to-solvent ratio less than 0.5, specifically as follows:

[0048] In Embodiment 2, the combined cover 201 of the infusion bag adopts a negative pressure joint. When using a drug with a solute-to-solvent ratio less than 0.5 for the infusion of patients, since the solute-to-solvent ratio of the infused drug is small, the ratio of the residual drug inside to the infused drug is small, and the influence of the lost part of the drug on the treatment of patients can be ignored. Therefore, there is no need to clean the inside of the infusion bag 2, and the use of the negative pressure joint will be more convenient during the use process. For the implementation manners not mentioned in Embodiment 2, they are the same as those in Embodiment 1 and will not be elaborated here.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manufacturing device for a high-barrier aluminum-plastic composite bag with a perspective window, characterized in that, the composite bag includes an outer bag (1) and an infusion bag (2). The infusion bag (2) is located inside the outer bag (1). An infusion bag combination cover (201) is provided on the infusion bag (2). The outer bag (1) is made by heat-sealing two layers of composite film (101). The two layers of composite film (101) are divided into composite film one (1011) and composite film two (1012). The composite film (101) is a high-barrier semi-transparent film. A perspective window (103) is provided on the composite film one (1011). A hanging hole (102) is provided at one end of the outer bag (1), and a tear line (104) is provided at the other end of the outer bag (1). The infusion bag combination cover (201) is located on one side of the tear line (104); the manufacturing device for the high-barrier aluminum-plastic composite bag with a perspective window includes an unwinder (3), a printing machine (4), a dryer (11), a heat-sealing machine (7), a scoring machine (8), a punching machine (9) and a cutting machine (10). The unwinder (3), the printing machine (4), the dryer (11), the heat-sealing machine (7), the scoring machine (8), the punching machine (9) and the cutting machine (10) are all installed on the floor, and the arrangement order is in turn the unwinder (3), the printing machine (4), the dryer (11), the heat-sealing machine (7), the scoring machine (8), the punching machine (9), the cutting machine (10). The printing machine (4) includes a frame (401). A feeding roller (403) and a pressing roller (408) are rotatably installed on the frame (401). A non-printing area (4031) with the same shape as the perspective window is provided on the feeding roller (403). An ink fountain (404) is installed on the frame (401). Printing ink is stored in the ink fountain (404). At least 1 / 4 - 1 / 3 of the volume of the feeding roller (403) is immersed in the printing ink. A tool rest (405) is provided on the frame (401). A squeegee (406) is installed on the tool rest (405), and the squeegee (406) is in close contact with the feeding roller (403). Characterized in that, a cleaning device for cleaning impurities accumulated on the squeegee (406) is provided on the tool rest (405); the cleaning device includes a suction nozzle (407) fixedly installed on the tool rest (405). The suction nozzle (407) and the non-printing area (4031) are located in the same vertical plane. The suction nozzle (407) is attached to the lower surface of the squeegee (406). The suction nozzle (407) is connected to a vacuum device through an air pipe. A control component for controlling the suction of the suction nozzle (407) in the non-printing area (4031) is provided on the air pipe; The control component includes a connecting block (5). The connecting block (5) is installed on the frame (401). A channel (501) is provided inside the connecting block (5). One end of the channel (501) is connected to the suction nozzle (407), and the other end of the channel (501) is connected to a vacuum device. An active channel (502) communicating with the channel (501) is provided inside the connecting block (5). A moving block (503) is movably installed inside the active channel (502). A driving component (6) for ensuring that the movement frequency of the moving block (503) is the same as the rotation frequency of the feeding roller (403) is connected to the moving block (503).

2. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 1, characterized in that: Both the composite film one (1011) and the composite film two (1012) are divided into four layers, namely an outer layer of polyurethane (PET), an ink layer, an intermediate layer of polyurethane (PET), and an inner layer of polyethylene (PE). The main materials in the ink layer include polyurethane resin, titanium dioxide, and aluminum powder, and titanium dioxide and aluminum powder are used as light-shielding agents.

3. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 1, characterized in that: The driving component (6) includes a gear one (601) fixedly installed on the feeding roller (403) and a gear two (602) rotatably installed on the frame (401). The gear one (601) meshes with the gear two (602). A turntable (603) is fixedly installed on the gear two (602). A power rod (604) is rotatably installed on the turntable (603). One end of the power rod (604) away from the turntable (603) is rotatably connected to the moving block (503).

4. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 1, characterized in that: A rack (4053) is slidably installed on the tool rest (405). The scraping knife (406) is installed on the rack (4053). A motor (4051) is installed above the tool rest (405). A gear three (4052) meshing with the rack (4053) is installed on the output shaft of the motor (4051). The ratio of the width of the suction nozzle (407) to the width of the area without drawing (4031) is between 1 / 3 and 1 / 2.

5. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 1, characterized in that: A pressing roller (402) is provided above the tool rest (405). The upper surface of the pressing roller (402) is in close contact with the upper surface of the scraping knife (406).

6. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 5, characterized in that: The pressing roller (402) is rotatably installed on the tool rest (405) through a pin. A fastening nut is threadedly connected to the pin.

7. The manufacturing device of a high-barrier aluminum-plastic composite bag with a perspective window according to claim 5, characterized in that: A plurality of balls (4081) are rollingly embedded on the pressing roller (402).

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