High-barrier composite layer medical infusion bag and production equipment thereof

Abstract

The application provides a high-barrier composite-layer medical infusion bag and a production equipment thereof, and belongs to the technical field of medical product preparation. The application solves the technical problems of low strength, easy breakage, low production efficiency and high cost of the existing medical infusion bag. The high-barrier composite-layer medical infusion bag comprises an infusion bag body formed by two layers of composite layers through hot melting, and the periphery of the infusion bag body is provided with a fused pressing edge. The middle part of the shorter fused pressing edge is provided with a liquid injection interface. The high-barrier composite-layer medical infusion bag has high strength and stable structure. The production equipment of the high-barrier composite-layer medical infusion bag has high production efficiency, and the discharging mechanism, discharging, gluing and conveying are fast and stable. The pressing traction mechanism, hot melting mechanism and hot pressing mechanism are matched to quickly press and combine to form a composite layer and quickly melt to form an infusion bag connecting belt. The trimming and cutting mechanism and the distribution mechanism are matched to effectively trim, cut and intermittently distribute the infusion bag. The marking mechanism marks and counts the infusion bag, and is suitable for a wide range of applications, fast and stable and accurate counting.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical product preparation, and relates to a high-barrier composite layer medical infusion bag, in particular to a production equipment of the high-barrier composite layer medical infusion bag. BACKGROUND

[0002] Infusion, also known as drip infusion or hanging water, is a large dose of injection liquid input into the body by intravenous drip. It is usually packaged in glass or plastic infusion bottles or bags and does not contain preservatives or bacteriostatic agents. When used, the drip speed is adjusted through an infusion device, and it continuously and stably enters the vein to supplement body fluid, electrolyte or provide nutrients. The development of intravenous infusion technology has experienced nearly 500 years of twists and turns, and in the 20th century, it gradually formed a complete system and became one of the most commonly used, most direct and effective clinical treatment methods. The drug is stored in the infusion bag, and the hygiene of the infusion bag is crucial. However, the existing technology cannot print the introduction of the drug on the infusion bag when processing the infusion bag.

[0003] The types of infusion bags are generally as follows: glass infusion bottles, plastic infusion bottles, PVC infusion soft bags, and infusion film bags.

[0004] Traditional glass infusion bottles and plastic infusion bottles are solid in themselves, and air needs to enter the bottle body so that the liquid medicine inside can flow out smoothly. This will cause bacteria, dust and other substances in the air to come into contact with the liquid medicine, which may contaminate the liquid medicine. These two types of infusion bottles have been gradually eliminated.

[0005] PVC infusion film bags solve the defect that infusion bottles need air, but PVC materials are not stable enough, and some liquid medicines will react with PVC, causing the liquid medicine to be contaminated. At the same time, the barrier property of the material is relatively low.

[0006] In addition, the strength is low, and the production efficiency of the existing production equipment is low, and the preparation cost is high.

[0007] Through retrieval, like Chinese patent document discloses a kind of infusion bag

application number: CN201610190712.3;Publication number: CN105662858A

[0008] Through retrieval, like Chinese patent document discloses a kind of infusion bag and its production method

application number: CN201410493585.5;Publication number: CN105500675A

[0009] Therefore, we propose a kind of high-barrier composite layer medical infusion bag and its production equipment, the strength of high-barrier composite layer medical infusion bag is high, the structure is stable, wear-resistant and pressure-resistant, not easy to break, the production equipment of high-barrier composite layer medical infusion bag, production efficiency is high, discharging mechanism, discharging, gluing, conveying are fast and stable;Composite layer can be quickly pressed and formed, infusion bag connecting band can be quickly hot-melted;Trimming, slitting and intermittent dispensing of infusion bag can be effectively carried out;Marking mechanism marks and counts infusion bag, which is widely applicable, efficient, stable, accurate and accurate. SUMMARY

[0010] The purpose of the present application is to solve the above-mentioned problems of the prior art, and to provide a kind of high-barrier composite layer medical infusion bag and its production equipment, which solves the technical problems of the present application, i.e.

[0011] The purpose of the present application can be realized by the following technical solutions:

[0012] The utility model provides a kind of production equipment of high-barrier composite layer medical infusion bag, including sequentially arranged discharging mechanism, hot melting mechanism, pressing traction mechanism, hot pressing mechanism, pruning cutting mechanism, distributing mechanism and marking mechanism, still be equipped with glue spraying mechanism and pressing traction mechanism on the discharging mechanism.

[0013] The working principle of the present application: the discharging mechanism discharges, and the film material of the two-layer composite layer of the medical infusion bag: wear-resistant layer, outer bag layer, center layer and inner bag layer is output synchronously; the outer bag layer and the center layer are sprayed by the glue spraying mechanism; the water-based medical adhesive is sprayed on the upper and lower surfaces of the outer bag layer and the center layer; the water-based medical adhesive is injected into the conduit by the glue extruding pump in the glue spraying mechanism; the water-based medical adhesive is sprayed into the glue spraying pipe inside the conduit by the nozzle; and the water-based medical adhesive is sprayed on the upper and lower surfaces of the outer bag layer and the center layer.

[0014] The discharging mechanism includes a discharging frame, a control box is arranged on the inner side of the discharging frame, two groups of discharging rolls are arranged above the discharging frame, each group of discharging rolls is composed of a plurality of discharging rolls, a plurality of film guide shafts and a plurality of film guide frame shafts are arranged on the discharging frame; the glue spraying mechanism includes a glue storage tank and a mounting frame, the glue storage tank is arranged on the inner side of the discharging frame, a glue extruding pump is arranged on the glue storage tank, the mounting frame is fixed on the discharging frame, the mounting frame is provided with four glue spraying pipe frames, two glue spraying pipe frames form a group, each group of glue spraying pipe frames corresponds to the position of the discharging roll group, a conduit is arranged between the glue spraying pipe frame and the glue extruding pump, a plurality of nozzles are arranged on the inner side of the glue spraying pipe frame.

[0015] The discharging rolls of the two groups of discharging roll groups output the composite layer, the composite layer output by the upper group of discharging roll groups is sequentially composed of the wear-resistant layer, the outer bag layer, the center layer and the inner bag layer from top to bottom, and the composite layer output by the lower group of discharging roll groups is sequentially composed of the inner bag layer, the center layer, the outer bag layer and the wear-resistant layer from top to bottom; the wear-resistant layer, the outer bag layer, the center layer and the inner bag layer are tensioned by the plurality of film guide shafts and the plurality of film guide frame shafts; the outer bag layer and the center layer pass through the corresponding glue spraying pipe frame; the water-based medical adhesive in the glue storage tank is injected into the conduit by the glue extruding pump, and then sprayed into the glue spraying pipe inside the conduit by the nozzle, and sprayed on the upper and lower surfaces of the outer bag layer and the center layer.

[0016] The pressing traction mechanism comprises a traction frame, one traction frame of the pressing traction mechanism is fixed on the discharging frame, two upper and lower pressing traction assemblies and two tensioning shafts are arranged on the traction frame, the pressing traction assembly comprises two fixing frames, the two fixing frames are fixed on the two sides of the traction frame, a traction motor is fixed on the outside of one of the fixing frames, a driving pressing shaft is rotatably arranged between the two fixing frames, the output shaft of the traction motor is in transmission connection with the driving pressing shaft, a sliding seat is slidably arranged on each of the fixing frames, an adjusting screw is screwed on each of the fixing frames, the adjusting screw is in rotation connection with the sliding seat on the same side, a driven pressing shaft is rotatably arranged between the two sliding seats, and the tensioning shaft is rotatably arranged between the two fixing frames of the corresponding pressing traction assembly, and the height of the tensioning shaft is between the driving pressing shaft and the driven pressing shaft.

[0017] According to the above structure, after the two glued and to-be-pressed composite layers are tensioned by the tensioning shaft, the two composite layers are inserted between the driving pressing shaft and the driven pressing shaft, the adjusting screw is rotated according to the thickness of the composite layer, the height of the sliding seat is adjusted, the height of the driven pressing shaft is adjusted, the distance between the driving pressing shaft and the driven pressing shaft is adjusted, the output shaft of the traction motor drives the driving pressing shaft to rotate, and the composite layer is pressed to form a compacted composite layer.

[0018] The hot melting mechanism comprises a hot melting box, a heating plate is arranged in the hot melting box, two conveying frames are sequentially arranged in the hot melting box, conveying tracks are arranged in the two conveying frames, a plurality of heat dissipation holes are arranged on the two sides of the hot melting box, an exhaust fan is fixed on the upper end of the hot melting box, and a mounting door is arranged on the hot melting box.

[0019] According to the above structure, the two compacted composite layers respectively extend above the two conveying tracks, the heating plate heats and hot melt bonds the compacted composite layers to form hot melt composite layers, and the two hot melt composite layers enter the pressing traction mechanism between the hot melting mechanism and the hot pressing mechanism to be pressed, and after the pressing is completed, a pressed composite layer is formed.

[0020] The hot pressing mechanism comprises a hot pressing box and a hot pressing top plate, a tensioning roller group, a limiting frame, a hot pressing base and a limiting frame are sequentially arranged on the hot pressing box, two lifting screw seats are arranged at the two ends of the hot pressing base, an adjusting motor is arranged at each corner of the hot pressing top plate, a lifting screw is arranged on the output shaft of the adjusting motor, and the lifting screw is in threaded transmission with the lifting screw seat at the corresponding position.

[0021] According to the above structure, the two pressed composite layers are tensioned by the tensioning roller group, and then sequentially pass through the limiting frame, the hot pressing base and the limiting frame, the output shaft of the adjusting motor drives the lifting screw to synchronously and intermittently rotate, the lifting screw is in threaded transmission cooperation with the lifting screw seat at the corresponding position, the hot pressing top plate is intermittently lifted, the two pressed composite layers are heated and pressed to form a transfusion bag body, a fused pressing edge is formed around the periphery of the transfusion bag body, a shorter fused pressing edge is formed in the middle part of the shorter fused pressing edge, and a transfusion bag connecting belt is formed.

[0022] The trimming and cutting mechanism comprises a trimming and cutting box, the upper end of the trimming and cutting box is sequentially provided with a guide frame, a trimming shaft group, a limiting seat and two tensioning rods, the upper end of the trimming and cutting box is further provided with a control screen and a power box, the side of the power box is sequentially provided with a pressing feeding wheel, a cutting roller and a discharging roller, and the pressing feeding wheel is located at the rear side of the tensioning rod.

[0023] With the above structure, the infusion bag connecting belt extends into the trimming shaft group from the guide frame, the trimming shaft group performs trimming processing on the edge of the infusion bag connecting belt, then the two tensioning rods extend into the pressing feeding wheel for stable conveying, the cutting roller for cutting, the medical infusion bag is formed, and then the medical infusion bag is output through the discharging roller, and the control screen controls the work of each component.

[0024] The distribution mechanism comprises a distribution box, the upper side of the distribution box is sequentially provided with a first distribution caterpillar conveyor, a discharging plate and a circulating rotating frame, the circulating rotating frame is rotationally arranged above the distribution box, the inside of the distribution box is provided with a divider, the output shaft of the divider is in transmission connection with the rotating shaft of the circulating rotating frame, the outside of the circulating rotating frame is provided with a plurality of circumferentially distributed rotating placement plates, one of the rotating placement plates is opposite to the rear side of the discharging plate, the upper side of the distribution box is further provided with a second distribution caterpillar conveyor, and the second distribution caterpillar conveyor is located at the side of the circulating rotating frame.

[0025] With the above structure, the infusion bag enters the first distribution caterpillar conveyor, the conveying speed of the first distribution caterpillar conveyor is faster than that of the discharging roller, the infusion bag is conveyed to the rotating placement plate at the corresponding position through the discharging plate, the output shaft of the divider drives the rotating shaft of the circulating rotating frame to rotate intermittently, the rotating placement plate drives the infusion bag to be conveyed to the second distribution caterpillar conveyor, and then the infusion bag is output through the second distribution caterpillar conveyor.

[0026] The marking mechanism comprises a marking box, the upper middle part of the marking box is sequentially provided with a marking conveying caterpillar and a discharging roller, both sides of the marking conveying caterpillar are provided with two rotating clamping wheels which are rotationally arranged above the marking box, a gun changing belt is arranged between the two rotating clamping wheels on the same side, a plurality of marking guns are detachably arranged on the outside of the gun changing belt, a rotating motor is arranged in the marking box, the output shaft of the rotating motor is in transmission connection with the rotating shaft of the rotating clamping wheel, a counter is arranged above the discharging roller, and the counter can be a laser sensor.

[0027] With the above structure, according to the label requirements of the infusion bag, a plurality of marking guns of suitable types are arranged on the outside of the gun changing belt, the output shaft of the rotating motor drives the rotating shaft of the rotating clamping wheel to rotate, drives the gun changing belt to rotate, and drives the marking guns to stop at suitable positions, the marking conveying caterpillar drives the infusion bag to be conveyed intermittently, the marking guns mark the infusion bag when the infusion bag is conveyed between the two gun changing belts, after the marking is completed, the marking conveying caterpillar drives the infusion bag to be conveyed to the discharging roller, and the counter counts the number of the infusion bags when the discharging roller discharges.

[0028] A high-barrier composite layer medical infusion bag, comprising an infusion bag body formed by two layers of composite layers hot melting, the four peripheral edges of the infusion bag body are provided with fused edges, and the middle part of the shorter fused edge is provided with a liquid injection interface.

[0029] The composite layers are sequentially arranged from outside to inside as a wear-resistant layer, an outer bag layer, a center layer and an inner bag layer, and a glue coating adhesion layer is arranged between the wear-resistant layer and the outer bag layer, between the outer bag layer and the center layer, and between the center layer and the inner bag layer, and the inner bag layers of the two layers of composite layers are in contact and hot melting.

[0030] The wear-resistant layer is made of polypropylene, carboxylated styrene-ethylene / butylene-styrene block copolymer and anionic polymer nylon nanocomposite; the outer bag layer is made of polyethylene material; the center layer is made of polypropylene, styrene-ethylene / butylene-styrene block copolymer and polyamide; the inner bag layer is made of high-density polyethylene and a plurality of elastic materials; and the glue coating adhesion layer is made of water-based medical adhesive.

[0031] Compared with the prior art, the high-barrier composite layer medical infusion bag has the following advantages:

[0032] The wear-resistant layer and the outer bag layer of the composite layer, the outer bag layer and the center layer, and the center layer and the inner bag layer are hot melting combined after being bonded by the glue coating adhesion layer, so that the adhesion strength is large and the structure is stable; the infusion bag body is formed by hot melting of the two layers of composite layers, so that the fusion strength is large and the structure is stable;

[0033] The production equipment of the high-barrier composite layer medical infusion bag realizes stable discharging, rapid glue coating and stable conveying through cooperation of the discharging mechanism, the glue spraying mechanism and the pressing traction mechanism;

[0034] The pressing traction mechanism, the hot melting mechanism and the hot pressing mechanism are cooperated to realize rapid pressing to form the composite layer and rapid hot melting to form the infusion bag connecting belt;

[0035] The trimming and cutting mechanism and the distributing mechanism are cooperated to stably trim, cut and intermittently distribute the infusion bag connecting belt;

[0036] The marking mechanism is used for marking and counting the infusion bag, the marking has a wide application range and high efficiency, and the counting is stable. DETAILED DESCRIPTION

[0037] Figure 1 is a front view structural schematic diagram of the production equipment of the present application.

[0038] Figure 2 is a front view structural schematic diagram of the production equipment of the present application.

[0039] Figure 3 is a front view structural schematic diagram of the production equipment of the present application.

[0040] Figure 4 is Figure 3 is an enlarged structural schematic view of A in the middle.

[0041] Figure 5 is a three-dimensional structural schematic view of a pressing traction mechanism in the production equipment of the present application.

[0042] Figure 6 is a three-dimensional structural schematic view of a hot melting mechanism in the production equipment of the present application.

[0043] Figure 7 is a three-dimensional structural schematic view of a hot pressing mechanism in the production equipment of the present application.

[0044] Figure 8 is a three-dimensional structural schematic view of a trimming and cutting mechanism in the production equipment of the present application.

[0045] Figure 9 is a three-dimensional structural schematic view of a dispensing mechanism in the production equipment of the present application.

[0046] Figure 10 is a three-dimensional structural schematic view of a marking mechanism in the production equipment of the present application.

[0047] Figure 11 is a sectional view of the infusion bag in the present application.

[0048] Figure 12 is a three-dimensional structural schematic view of the infusion bag in the present application.

[0049] In the figure, 1, discharging mechanism; 2, glue spraying mechanism; 3, pressing traction mechanism; 4, hot melting mechanism; 5, hot pressing mechanism; 6, trimming and cutting mechanism; 7, distributing mechanism; 8, marking mechanism; 9, discharging rack; 10, control box; 11, discharging roll group; 12, film guide shaft; 13, film guide rack shaft; 14, guide pipe; 15, mounting rack; 16, glue spraying port letter pipe rack; 17, spray head; 18, glue storage tank; 19, traction rack; 20, traction motor; 21, driving pressure shaft; 22, fixing rack; 23, sliding seat; 24, adjusting screw; 25, driven pressure shaft; 26, tensioning shaft; 27, hot melting box; 28, conveying rack; 29, conveying track; 30, exhaust fan; 31, heat dissipation hole; 32, mounting door; 33, hot pressing box; 34, tensioning roller group; 35, limiting rack; 36, hot pressing base; 37, adjusting motor; 38, hot pressing top plate; 39, lifting screw seat; 40, guide rack; 41, trimming shaft group; 42, limiting seat; 43, control screen; 44, tensioning rod; 45, pressing feeding wheel; 46, cutting roller; 47, power box; 48, discharging roller; 49, trimming and cutting box; 50, first distributing track machine; 51, discharging plate; 52, rotating placement plate; 53, circulating rotating rack; 54, second distributing track machine; 55, distributing box; 56, marking box; 57, marking conveying track; 58, marking gun; 59, gun skin changing belt; 60, rotating clamping wheel; 61, counter; 62, discharging roller; 63, wear-resistant layer; 64, glue coating and bonding layer; 65, outer bag layer; 66, center layer; 67, inner bag layer; 68, infusion bag main body; 69, fusion and edge pressing; 70, liquid injection interface. DETAILED DESCRIPTION

[0050] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0051] As Figures 1-10 shown, the production equipment of the high-barrier composite medical infusion bag includes discharging mechanism 1, hot melting mechanism 4, pressing traction mechanism 3, hot pressing mechanism 5, trimming and cutting mechanism 6, distributing mechanism 7 and marking mechanism 8 arranged in sequence, and glue spraying mechanism 2 and pressing traction mechanism 3 are further arranged on the discharging mechanism 1.

[0052] The discharging mechanism 1 discharges the two-layer composite layer of the medical infusion bag: the wear-resistant layer 63, the outer bag layer 65, the center layer 66 and the inner bag layer 67. The outer bag layer 65 and the center layer 66 are sprayed by the glue spraying mechanism 2, sprayed on the upper and lower surfaces of the outer bag layer 65 and the center layer 66, and then pass through the pressing traction mechanism 3 on the discharging mechanism 1 to enter the preliminary pressing. The sprayed water-based medical adhesive forms a glue-coated adhesive layer 64 between the wear-resistant layer 63 and the outer bag layer 65, between the outer bag layer 65 and the center layer, and between the center layer 66 and the inner bag layer 67. Then it enters the hot melting mechanism 4 for hot melting adhesion, and then enters the pressing traction mechanism 3 between the hot melting mechanism 4 and the hot pressing mechanism 5 for pressing. After the pressing is completed, the composite layer is formed and enters the hot pressing mechanism 5 for hot pressing forming of the two-layer composite layer. At this time, the two-layer composite layer forms the infusion bag body 68. The four peripheral edges of the infusion bag body 6 form the fused pressing edges 69, and the middle part of the shorter fused pressing edge 69 forms the infusion interface 70, forming the infusion bag connecting belt. The infusion bag connecting belt enters the trimming and cutting mechanism 6 to trim the edges and cut the two sides of the infusion bag connecting belt into segments to form the medical infusion bag. The medical infusion bag enters the dispensing mechanism 7 for intermittent output. After output, it enters the marking mechanism 8 for marking and counting.

[0053] The discharging mechanism 1 includes a discharging frame 9, the inner side of the discharging frame 9 is provided with a control box 10, the upper side of the discharging frame 9 is provided with two groups of discharging roll groups 11, each discharging roll group 11 is composed of a plurality of discharging rolls, the upper side of the discharging frame 9 is provided with a plurality of film guide shafts 12 and a plurality of film guide frame shafts 13; the glue spraying mechanism 2 includes a glue storage tank 18 and a mounting frame 15, the glue storage tank 18 is arranged on the inner side of the discharging frame 9, the glue storage tank 18 is provided with an extrusion pump, the mounting frame 15 is fixed on the discharging frame 9, the mounting frame 15 is provided with four glue spraying port letter pipe frames 16, two glue spraying port letter pipe frames 16 form a group, each group of glue spraying port letter pipe frames 16 corresponds to the position of the discharging roll group 11, a conduit 14 is arranged between the glue spraying port letter pipe frame 16 and the extrusion pump, the inner side of the glue spraying port letter pipe frame 16 is provided with a plurality of oppositely arranged spray heads 17;

[0054] The discharging rolls of the two groups of discharging roll groups 11 output the composite layer. The composite layer output by the upper group of discharging roll groups 11 is sequentially composed of the wear-resistant layer 63, the outer bag layer 65, the center layer 66 and the inner bag layer 67 from top to bottom. The composite layer output by the lower group of discharging roll groups 11 is sequentially composed of the inner bag layer 67, the center layer 66, the outer bag layer 65 and the wear-resistant layer 63 from top to bottom. The wear-resistant layer 63, the outer bag layer 65, the center layer 66 and the inner bag layer 67 are tensioned by a plurality of film guide shafts 12 and a plurality of film guide frame shafts 13. The outer bag layer 65 and the center layer 66 pass through the corresponding position of the glue spraying port letter pipe frame 16 respectively. The extrusion pump injects the water-based medical adhesive in the glue storage tank 18 into the conduit 14, and then into the glue spraying port letter pipe frame 16, and sprays it out through the spray head 17, and sprays it on the upper and lower surfaces of the outer bag layer 65 and the center layer 66.

[0055] The pressing traction mechanism 3 comprises a traction frame 19, one traction frame 19 of the pressing traction mechanism 3 is fixed on the discharging frame 9, the traction frame 19 is provided with two upper and lower pressing traction assemblies and two tensioning shafts 26, the pressing traction assembly comprises two fixed frames 22, the two fixed frames 22 are fixed on the two sides of the traction frame 19, a traction motor 20 is fixed on the outside of one of the fixed frames 22, a driving pressing shaft 21 is rotatably arranged between the two fixed frames 22, the output shaft of the traction motor 20 is in transmission connection with the driving pressing shaft 21, a sliding seat 23 is slidably arranged on each of the fixed frames 22, an adjusting screw 24 is screwed on each of the fixed frames 22, the adjusting screw 24 is in rotational connection with the sliding seat 23 on the same side, a driven pressing shaft 25 is rotatably arranged between the two sliding seats 23, the tensioning shaft 26 is rotatably arranged between the two fixed frames 22 of the corresponding pressing traction assembly, and the height of the tensioning shaft 26 is located between the driving pressing shaft 21 and the driven pressing shaft 25;

[0056] After the two glued and to-be-pressed composite layers are tensioned by the tensioning shaft 26, the two glued and to-be-pressed composite layers are inserted between the driving pressing shaft 21 and the driven pressing shaft 25, according to the thickness of the composite layer, the adjusting screw 24 is rotated to adjust the height of the sliding seat 23, so as to adjust the height of the driven pressing shaft 25, that is, to adjust the distance between the driving pressing shaft 21 and the driven pressing shaft 25, the output shaft of the traction motor 20 drives the driving pressing shaft 21 to rotate, and the composite layer is pressed to form a compacted composite layer.

[0057] The hot melting mechanism 4 comprises a hot melting box 27, the inside of the hot melting box 27 is provided with a heating plate, the inside of the hot melting box 27 is sequentially provided with two conveying frames 28, the inside of the two conveying frames 28 is provided with a conveying track 29, the two sides of the hot melting box 27 are provided with a plurality of heat dissipation holes 31, the upper end of the hot melting box 27 is fixedly provided with an exhaust fan 30, and the hot melting box 27 is provided with a mounting door 32;

[0058] The two compacted composite layers respectively extend above the two conveying tracks 29, the heating plate heats and hot melts the compacted composite layers to form hot melting composite layers, and the two hot melting composite layers enter the pressing traction mechanism 3 between the hot melting mechanism 4 and the hot pressing mechanism 5 to be pressed, and after the pressing is completed, a pressed composite layer is formed.

[0059] The hot pressing mechanism 5 comprises a hot pressing box 33 and a hot pressing top plate 38, the hot pressing box 33 is sequentially provided with a tensioning roller group 34, a limiting frame 35, a hot pressing base 36 and the limiting frame 35, two lifting screw seats 39 are arranged at the two ends of the hot pressing base 36, an adjusting motor 37 is arranged at each corner of the hot pressing top plate 38, the output shaft of the adjusting motor 37 is provided with a lifting screw, and the lifting screw is in threaded transmission with the corresponding lifting screw seat 39;

[0060] The two pressing composite layers are stretched into the tension roller set 34, and then pass through the limiting frame 35, the hot pressing base 36 and the limiting frame 35 in sequence. The output shaft of the adjusting motor 37 drives the lifting screw to rotate synchronously and intermittently. The lifting screw is in threaded transmission cooperation with the lifting screw seat 39 at the corresponding position, thereby driving the hot pressing top plate 38 to rise and fall intermittently. The two pressing composite layers are heated and pressed to form the infusion bag body 68. The four peripheral edges of the infusion bag body 68 form fused pressing edges 69. The middle part of the shorter fused pressing edge 69 forms a liquid injection interface 70, and the infusion bag connecting belt is formed.

[0061] The trimming and cutting mechanism 6 comprises a trimming and cutting box 49. The upper end of the trimming and cutting box 49 is sequentially provided with a guide frame 40, a trimming shaft set 41, a limiting seat 42 and two tensioning rods 44. The upper end of the trimming and cutting box 49 is also provided with a control screen 43 and a power box 47. The side of the power box 47 is sequentially provided with a pressing feeding wheel 45, a cutting roller 46 and a discharge roller 48. The pressing feeding wheel 45 is located at the rear side of the tensioning rod 44.

[0062] The infusion bag connecting belt extends into the trimming shaft set 41 from the guide frame 40. The trimming shaft set 41 performs trimming processing on the edge of the infusion bag connecting belt. Then the infusion bag connecting belt extends into the pressing feeding wheel 45 through the two tensioning rods 44, is stably conveyed, enters the cutting roller 46, is cut, forms a medical infusion bag, and then the medical infusion bag is output through the discharge roller 48. The control screen 43 controls the work of each component.

[0063] The distribution mechanism 7 comprises a distribution box 55. The upper part of the distribution box 55 is sequentially provided with a first distribution caterpillar conveyor 50, a discharge plate 51 and a circulating rotary frame 53. The circulating rotary frame 53 is rotationally arranged above the distribution box 55. The inside of the distribution box 55 is provided with a divider. The output shaft of the divider is in transmission connection with the rotating shaft of the circulating rotary frame 53. The outside of the circulating rotary frame 53 is provided with a plurality of circumferentially distributed rotary placement plates 52. One of the rotary placement plates 52 is opposite to the rear side of the discharge plate 51. The upper part of the distribution box 55 is also provided with a second distribution caterpillar conveyor 54. The second distribution caterpillar conveyor 54 is located at the side of the circulating rotary frame 53.

[0064] The infusion bag enters the first distribution caterpillar conveyor 50. The conveying speed of the first distribution caterpillar conveyor 50 is faster than that of the discharge roller 48. The infusion bag is conveyed to the rotary placement plate 52 at the corresponding position through the discharge plate 51. The output shaft of the divider drives the rotating shaft of the circulating rotary frame 53 to rotate intermittently. The rotary placement plate 52 drives the infusion bag to be conveyed to the second distribution caterpillar conveyor 54, and then the infusion bag is output through the second distribution caterpillar conveyor 54.

[0065] The marking mechanism 8 comprises a marking box 56, a marking conveying caterpillar 57 and a discharging roller 62 are sequentially arranged at the middle part of the upper portion of the marking box 56, two rotating clamping wheels 60 are arranged at the two sides of the marking conveying caterpillar 57 and are rotatably arranged above the marking box 56, a gun changing belt 59 is arranged between the two rotating clamping wheels 60 at the same side, a plurality of marking guns 58 are detachably arranged at the outer side of the gun changing belt 59, a rotating motor is arranged in the marking box 56, the output shaft of the rotating motor is in transmission connection with the rotating shaft of the rotating clamping wheel 60, and a counter 61 is arranged above the discharging roller 62, and the counter 61 can be a laser sensor;

[0066] According to the label requirements of the infusion bag, a plurality of marking guns 58 of a suitable type are arranged at the outer side of the gun changing belt 59, the rotating motor output shaft drives the rotating shaft of the rotating clamping wheel 60 to rotate, drives the gun changing belt 59 to rotate, and drives the marking gun 58 to stop at a suitable position, the marking conveying caterpillar 57 drives the intermittent conveying of the infusion bag, when the infusion bag is conveyed between the two gun changing belts 59, the marking gun 58 marks the infusion bag, after the marking is completed, the marking conveying caterpillar 57 drives the conveying of the infusion bag to the discharging roller 62, and when the discharging roller 62 discharges, the counter 61 counts the number of the infusion bags.

[0067] As shown in the figure, Figures 11-12 The high-barrier composite layer medical infusion bag comprises a main body 68 formed by two composite layers through hot melting, the periphery of the main body 68 is provided with a fused and pressed edge 69, and the middle part of the shorter fused and pressed edge 69 is provided with a liquid injection interface 70.

[0068] The composite layer comprises, from outside to inside, a wear-resistant layer 63, an outer bag layer 65, a center layer 66 and an inner bag layer 67, and a glue coating and bonding layer 64 is arranged between the wear-resistant layer 63 and the outer bag layer 65, between the outer bag layer 65 and the center layer, and between the center layer 66 and the inner bag layer 67, and the inner bag layers 67 of the two composite layers are in contact and hot-melt combined;

[0069] The wear-resistant layer 63 is made of a mixture of polypropylene, carboxylated styrene-ethylene / butylene-styrene block copolymer and anionic polymer nylon nanocomposite material; the outer bag layer 65 is made of polyethylene material; the center layer 66 is made of a mixture of polypropylene, styrene-ethylene / butylene-styrene block copolymer and polyamide; the inner bag layer 67 is made of a mixture of high-density polyethylene and various elastic materials; and the glue coating and bonding layer 64 is made of a water-based medical adhesive.

[0070] The working principle of the present application is as follows:

[0071] The manual traction of each wear-resistant layer 63, outer bag layer 65, center layer 66 and inner bag layer 67, the composite layer output by the upper group of discharge roll groups 11 is wear-resistant layer 63, outer bag layer 65, center layer 66 and inner bag layer 67 from top to bottom, the composite layer output by the lower group of discharge roll groups 11 is inner bag layer 67, center layer 66, outer bag layer 65 and wear-resistant layer 63 from top to bottom, wear-resistant layer 63, outer bag layer 65, center layer 66 and inner bag layer 67 are tensioned by a plurality of film shafts 12 and a plurality of film frame shafts 13, outer bag layer 65 and center layer 66 pass through the corresponding position of the glue jet pipe frame 16 respectively;

[0072] In turn, pass through the pressing traction mechanism 3, the hot melting mechanism 4, the pressing traction mechanism 3, the hot pressing mechanism 5, the trimming and cutting mechanism 6, the dispensing mechanism 7 and the marking mechanism 8, and then start each electrical element;

[0073] The long section of each layer pulled out is waste;

[0074] The discharge roll of the two groups of discharge roll groups 11 outputs the composite layer, the composite layer output by the upper group of discharge roll groups 11 is wear-resistant layer 63, outer bag layer 65, center layer 66 and inner bag layer 67 from top to bottom, the composite layer output by the lower group of discharge roll groups 11 is inner bag layer 67, center layer 66, outer bag layer 65 and wear-resistant layer 63 from top to bottom, wear-resistant layer 63, outer bag layer 65, center layer 66 and inner bag layer 67 are tensioned by a plurality of film shafts 12 and a plurality of film frame shafts 13, outer bag layer 65 and center layer 66 pass through the corresponding position of the glue jet pipe frame 16 respectively, the water-based medical adhesive in the glue storage tank 18 is injected into the conduit 14 by the glue extrusion pump, then enters the inside of the glue jet pipe frame 16, and is sprayed out through the nozzle 17 to be sprayed on the upper and lower surfaces of the outer bag layer 65 and the center layer 66;

[0075] After the two glued composite layers to be pressed are tensioned by the tensioning shaft 26, they are inserted between the driving pressure shaft 21 and the driven pressure shaft 25, according to the thickness of the composite layer, the height adjusting screw 24 is rotated to adjust the height of the sliding seat 23, so as to adjust the height of the driven pressure shaft 25, that is, to adjust the distance between the driving pressure shaft 21 and the driven pressure shaft 25, the output shaft of the traction motor 20 drives the driving pressure shaft 21 to rotate, and the composite layer is pressed to form a compacted composite layer;

[0076] The two compacted composite layers respectively extend above the two conveying belts 29, and the heating plate heats and hot melts the compacted composite layers to form hot melt composite layers, and the two hot melt composite layers enter the pressing traction mechanism 3 between the hot melting mechanism 4 and the hot pressing mechanism 5 to be pressed, and after the pressing is completed, a pressed composite layer is formed;

[0077] Two pressing composite layers extend into the tension roller set 34 for tensioning, and then pass through the limiting frame 35, the hot pressing base 36 and the limiting frame 35 in turn. The output shaft of the adjusting motor 37 drives the lifting screw to rotate synchronously and intermittently. The lifting screw is in threaded transmission cooperation with the lifting screw seat 39 at the corresponding position, drives the hot pressing top plate 38 to rise and fall intermittently, and presses the two pressing composite layers to form the infusion bag body 68. The four peripheral edges of the infusion bag body 68 form the fused pressing edges 69, and the middle part of the shorter fused pressing edge 69 forms the infusion interface 70 to form the infusion bag connecting belt.

[0078] The infusion bag connecting belt extends into the trimming shaft set 41 from the guide frame 40. The trimming shaft set 41 trims the edge of the infusion bag connecting belt, and then extends into the pressing feeding wheel 45 through the two tensioning rods 44 for stable conveying, enters the cutting roller 46 for cutting, forms the medical infusion bag, and then outputs the medical infusion bag through the discharge roller 48. The control screen 43 controls the work of each component.

[0079] The infusion bag enters the first distribution caterpillar conveyor 50. The conveying speed of the first distribution caterpillar conveyor 50 is faster than that of the discharge roller 48. The infusion bag is conveyed to the rotating placement plate 52 at the corresponding position through the discharge plate 51. The output shaft of the divider drives the rotating shaft of the circulating rotating frame 53 to rotate intermittently. The rotating placement plate 52 drives the infusion bag to be conveyed to the second distribution caterpillar conveyor 54 and is output through the second distribution caterpillar conveyor 54.

[0080] According to the label requirements of the infusion bag, several marking guns 58 of suitable types are installed on the outside of the gun changing belt 59. The rotating motor output shaft drives the rotating shaft of the rotating clamping wheel 60 to rotate, drives the gun changing belt 59 to rotate, and thus drives the marking gun 58 to stay at a suitable position. The marking conveying caterpillar 57 drives the infusion bag to be conveyed intermittently. When the infusion bag is conveyed between the two gun changing belts 59, the marking gun 58 marks the infusion bag. After the marking is completed, the marking conveying caterpillar 57 drives the infusion bag to be conveyed to the discharge roller wheel 62. When the discharge roller wheel 62 discharges, the counter 61 counts the number of the infusion bags.

[0081] As described above, the wear-resistant layer 63 and the outer bag layer 65 of the composite layer, the outer bag layer 65 and the center layer, and the center layer 66 and the inner bag layer 67 are bonded through the glue coating adhesive layer 64 and then hot-melt combined, so that the bonding strength is large and the structure is stable. The infusion bag body 68 formed by hot-melting two composite layers has large fusion strength and stable structure.

[0082] The discharge mechanism 1, the glue spraying mechanism 2 and the pressing traction mechanism 3 are matched to realize stable discharge, rapid glue coating and stable conveying.

[0083] The pressing traction mechanism 3, the hot-melting mechanism 4 and the hot pressing mechanism 5 are matched to realize rapid pressing to form the composite layer and rapid hot-melting to form the infusion bag connecting belt.

[0084] The infusion bag connecting belt is stably trimmed, cut and intermittently distributed by the cooperation of the trimming and cutting mechanism 6 and the distributing mechanism 7.

[0085] The infusion bag is marked and counted by the marking mechanism 8, the marking is widely applicable and fast, and the counting is stable.

[0086] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A high-barrier composite layer medical infusion bag production equipment, characterized in that: the high-barrier composite layer medical infusion bag comprises an infusion bag body (68) formed by two layers of composite layers through hot melting, and a fused pressing edge (69) is arranged on the four peripheral edges of the infusion bag body (68), and a liquid injection interface (70) is arranged in the middle of the shorter fused pressing edge (69); the composite layer comprises, from outside to inside, a wear-resistant layer (63), an outer bag layer (65), a center layer (66), and an inner bag layer (67), and a glue-coated adhesive layer (64) is arranged between the wear-resistant layer (63) and the outer bag layer (65), between the outer bag layer (65) and the center layer, and between the center layer (66) and the inner bag layer (67), and the inner bag layers (67) of the two layers of composite layers are in contact and hot-melt combined; the wear-resistant layer (63) is made of a mixture of polypropylene, carboxylated styrene-ethylene / butylene-styrene block copolymer, and anionic polymeric nylon nanocomposite material; the outer bag layer (65) is made of polyethylene material; the center layer (66) is made of a mixture of polypropylene, styrene-ethylene / butylene-styrene block copolymer, and polyamide; the inner bag layer (67) is made of a mixture of high-density polyethylene and various elastic materials; and the glue-coated adhesive layer (64) is made of a water-based medical adhesive; the production equipment for preparing the above-mentioned infusion bag comprises, in sequence, a discharging mechanism (1), a hot melting mechanism (4), a pressing traction mechanism (3), a hot pressing mechanism (5), a trimming and cutting mechanism (6), a dispensing mechanism (7), and a marking mechanism (8), and the discharging mechanism (1) is further provided with a glue spraying mechanism (2) and the pressing traction mechanism (3); the discharging mechanism (1) comprises a discharging rack (9), the inner side of the discharging rack (9) is provided with a control box (10), the upper side of the discharging rack (9) is provided with two groups of discharging roll groups (11), each discharging roll group (11) is composed of a plurality of discharging rolls, a plurality of film guide shafts (12) and a plurality of film guide rack shafts (13) are arranged on the discharging rack (9); the glue spraying mechanism (2) comprises a glue storage tank (18) and a mounting rack (15), the glue storage tank (18) is arranged on the inner side of the discharging rack (9), the glue storage tank (18) is provided with an extrusion pump, the mounting rack (15) is fixed on the discharging rack (9), the mounting rack (15) is provided with four glue spraying port letter pipe racks (16), two glue spraying port letter pipe racks (16) form a group, each group of glue spraying port letter pipe racks (16) corresponds to the position of the discharging roll group (11), a conduit (14) is arranged between the glue spraying port letter pipe rack (16) and the extrusion pump, and a plurality of oppositely arranged spray heads (17) are arranged on the inner side of the glue spraying port letter pipe rack (16). ​ ​ ​ ​ ​ The pressing traction mechanism (3) comprises a traction frame (19), one traction frame (19) of the pressing traction mechanism (3) is fixed on the discharge frame (9), the traction frame (19) is provided with two pressing traction assemblies arranged in upper and lower positions and two tensioning shafts (26), the pressing traction assembly comprises two fixing frames (22), the two fixing frames (22) are fixed on the two sides of the traction frame (19), a traction motor (20) is fixed on the outer side of one of the fixing frames (22), a driving pressing shaft (21) is rotatably arranged between the two fixing frames (22), the output shaft of the traction motor (20) is in transmission connection with the driving pressing shaft (21), a sliding seat (23) is slidably arranged on each of the fixing frames (22), an adjusting screw rod (24) is screwed on each of the fixing frames (22), the adjusting screw rod (24) is in rotation connection with the sliding seat (23) on the same side, a driven pressing shaft (25) is rotatably arranged between the two sliding seats (23), the tensioning shaft (26) is rotatably arranged between the two fixing frames (22) of the corresponding pressing traction assembly, and the height of the tensioning shaft (26) is located between the driving pressing shaft (21) and the driven pressing shaft (25); The hot melting mechanism (4) comprises a hot melting box (27), the hot melting box (27) is internally provided with a heating plate, the hot melting box (27) is internally provided with two conveying frames (28) in sequence, the two conveying frames (28) are internally provided with conveying caterpillar belts (29), the two sides of the hot melting box (27) are provided with a plurality of heat dissipation holes (31), the upper end of the hot melting box (27) is fixedly provided with an exhaust fan (30), and the hot melting box (27) is provided with a mounting door (32); The hot pressing mechanism (5) comprises a hot pressing box (33) and a hot pressing top plate (38), the hot pressing box (33) is sequentially provided with a tensioning roller group (34), a limiting frame (35), a hot pressing base (36) and the limiting frame (35), two lifting screw seats (39) are arranged at the two ends of the hot pressing base (36), adjusting motors (37) are arranged at the four corners of the hot pressing top plate (38), the output shaft of the adjusting motor (37) is provided with a lifting screw rod, and the lifting screw rod is in threaded transmission with the corresponding lifting screw seat (39); The trimming and cutting mechanism (6) comprises a trimming and cutting box (49), the trimming and cutting box (49) is sequentially provided with a guide frame (40), a trimming shaft group (41), a limiting seat (42) and two tensioning rods (44) at the upper end, the trimming and cutting box (49) is further provided with a control screen (43) and a power box (47) at the upper end, the side of the power box (47) is sequentially provided with a pressing feeding wheel (45), a cutting roller (46) and a discharge roller (48), and the pressing feeding wheel (45) is located at the rear side of the tensioning rod (44). The delivery mechanism (7) comprises a delivery box (55), a first delivery caterpillar conveyor (50), a discharge plate (51) and a circulating rotary frame (53) are sequentially arranged above the delivery box (55), the circulating rotary frame (53) is rotationally arranged above the delivery box (55), a divider is arranged in the delivery box (55), an output shaft of the divider is in transmission connection with a rotating shaft of the circulating rotary frame (53), a plurality of rotating object plates (52) are uniformly arranged on the outer side of the circulating rotary frame (53), one of the rotating object plates (52) is opposite to the rear side of the discharge plate (51), a second delivery caterpillar conveyor (54) is further arranged above the delivery box (55), and the second delivery caterpillar conveyor (54) is located at the side of the circulating rotary frame (53); The marking mechanism (8) comprises a marking box (56), a marking conveying caterpillar conveyor (57) and a discharge roller (62) are sequentially arranged at the upper middle part of the marking box (56), two rotating clamping wheels (60) are rotationally arranged above the marking box (56) and arranged at the two sides of the marking conveying caterpillar conveyor (57), a gun changing belt (59) is arranged between the two rotating clamping wheels (60) on the same side, a plurality of marking guns (58) are detachably arranged on the outer side of the gun changing belt (59), a rotating motor is arranged in the marking box (56), an output shaft of the rotating motor is in transmission connection with rotating shafts of the rotating clamping wheels (60), and a counter (61) is arranged above the discharge roller (62).

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