Female nursing protection product packaging bag production device

Abstract

The invention provides a female nursing protection product packaging bag production device which comprises a rack and a control system. A multi-layer co-extrusion film blowing machine used for extruding multi-layer or multi-color film materials, a pretreatment assembly used for primary treatment of base materials and a high-speed intaglio printing assembly used for printing different colors on the base materials are sequentially arranged on the support in an integrated mode along the technological process. The compounding module is used for performing dry compounding on an upper film and a lower film through a double-component polyurethane adhesive; the die cutting and collecting assembly is used for accurately cutting and forming a packaging material; the composite module comprises an easy-to-tear opening laser die cutting unit and a lifting tongue online attaching unit and is adjusted and controlled through a control system. According to the production device for the female nursing protection product packaging bag, key procedures can be integrated, high-speed and high-precision production is achieved, and sanitation of the female nursing protection product packaging bag is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of nursing product packaging, and particularly relates to a female nursing protection product packaging bag production device. BACKGROUND

[0002] As a close-to-body hygiene product, the independent packaging bag of the female nursing protection product needs to have excellent sealing and moisture-proof performance to protect the product hygiene, and also needs to meet the requirements of beauty, easy opening (such as an easy-tear opening), and good touch feeling. At present, the production of such packaging bags usually involves multiple scattered processes, such as film printing, compounding, curing, slitting, bag making, etc., and has the following technical defects:

[0003] (1) Each process is completed by independent equipment, and the material needs to be transferred, wound up, and wound down between different equipment, resulting in a long production cycle, large material loss, and low overall production efficiency;

[0004] (2) In high-speed production, the relative positions (registering accuracy) of the printed patterns, easy-tear opening positions, and heat-sealed edges of the packaging bag are prone to deviation, resulting in a decrease in the qualified rate of finished products, and the traditional mechanical type of correcting deviation has slow response and limited accuracy;

[0005] (3) Due to the particularity of the nursing product, there is a high requirement for the cleanliness of the packaging bag. In the open environment of the existing production line, the film material is prone to dust during the transmission process, affecting the hygiene and safety of the final product.

[0006] Therefore, there is an urgent need in the field for a female nursing protection product packaging bag production device that can integrate key processes, achieve high-speed and high-precision production, and ensure the hygiene of the product. SUMMARY

[0007] The purpose of the present application is to provide a female nursing protection product packaging bag production device that solves the technical problem of how to integrate key processes and achieve high-speed and high-precision production to ensure the hygiene of the female nursing protection product packaging bag.

[0008] A female nursing protection product packaging bag production device includes a rack and a control system, and a multi-layer co-extrusion blown film machine for extruding multi-layer or multi-color film material, a pretreatment assembly for preliminary treatment of the base material, a high-speed intaglio printing assembly for printing different colors on the base material, a compounding module for dry compounding of the upper and lower films by double-component polyurethane adhesive, and a die cutting and collecting assembly for accurate cutting and forming of the packaging material are sequentially integrated along the process flow on the support.

[0009] The compounding module includes an easy-tear opening laser die cutting unit and a pull-tab online attaching unit, which are adjusted and controlled by the control system.

[0010] It should be noted that the material is processed from the multi-layer total blown film machine, which is a cylindrical structure capable of containing articles, and is flattened after passing through the roller structure during transmission. Therefore, the above description of "two films" is the prior art, which will not be described in detail.

[0011] The high-speed intaglio printing assembly comprises a feeding roller assembly, a printing unit, and a discharging roller assembly arranged in sequence on a rack, and an optical-electric registration system is also arranged on the rack, the optical-electric registration system is arranged close to the discharging roller assembly, and an ink box is arranged below the printing unit.

[0012] The high-speed intaglio printing assembly is used for multi-color pattern printing on the outer packaging bag, and more preferably, a drying system can also be provided.

[0013] It should be noted that the high-speed intaglio printing assembly is the prior art, and the working principles of the feeding roller assembly, the printing unit, the discharging roller assembly, and the optical-electric registration system will not be described in detail.

[0014] The laser die-cutting unit and the pull-tab online attaching unit are fixedly arranged on both sides of the slide plate, the slide plate is slidingly arranged on the fixed table, the slide plate is connected with the reciprocating mechanism, and the slide plate moves along a direction perpendicular to the conveying direction of the film material.

[0015] The slide plate is provided with a camera, the camera is connected with a printing laser engraving detection system, and the printing laser engraving detection system is connected with the reciprocating mechanism through a control system.

[0016] It should be noted that the camera is used to take a photo of the outer packaging bag in transmission, and then the photo is transmitted to the printing laser engraving detection system. The printing laser engraving detection system has a contrast image entered in advance, and the contrast image is divided and processed into a plurality of detailed image elements. The photo of the outer packaging bag on the assembly line is compared with the contrast image element one by one. If they are consistent, it means that the position of the tear-off port is accurate, and if they are not consistent, it means that the position of the tear-off port is not accurate.

[0017] When the position of the tear-off port is accurate, the laser die-cutting unit and the pull-tab online attaching unit work normally, when the position of the tear-off port is not accurate, the alarm light under the control of the PLC is bright, and the reciprocating mechanism under the control of the PLC adjusts the position of the slide plate to the right position.

[0018] More preferably, a plurality of temperature-controlled bridge ovens (i.e. the above-mentioned drying system) are arranged on one side of the fixed table for curing and drying of the adhesive.

[0019] The laser die-cutting unit forms a tear line by numerically controlled laser ablation at the predetermined position of the printed film material, and the pull-tab attaching unit is used to accurately attach the preformed pull-tab to the corresponding position of the film material, which is a technology easy to operate in the field and will not be described in detail here.

[0020] The control system can drive the slide plate to move to the width position of the corresponding film roll for operation according to the product specification instructions, thereby realizing the production of multiple specifications of packaging bags at the same time.

[0021] A visual detection system is arranged near the die-cutting and collecting assembly, which includes a high-speed linear array camera and an image processing unit for detecting the printing, tear line and attachment quality. The image processing unit is connected with a printing and laser engraving detection system, which is connected with an alarm through a control system.

[0022] The detection results of the die-cutting and collecting assembly are fed back to the control system, and the system can drive the inkjet printer to mark the defective bags, or remove them through the air nozzle at the collecting end.

[0023] It also includes a tension control assembly arranged between the multi-layer co-extrusion film blowing machine and the pretreatment assembly, which includes a servo motor, a tension sensor and a floating roller mechanism. The tension sensor is arranged on the floating roller mechanism, and the servo motor is connected with the floating roller mechanism.

[0024] The tension control assembly constitutes a closed-loop control through the servo motor, the tension sensor and the floating roller, ensuring that the tension of the film material is constant and synchronized during transmission.

[0025] The pretreatment assembly includes an electrostatic eliminator and a plasma cleaning machine.

[0026] The die-cutting and collecting assembly includes a die-cutting assembly and a collecting assembly. The die-cutting assembly includes a rotating shaft and rotating cutters arranged in an annular array outside the rotating shaft.

[0027] The collecting assembly includes a positioning frame, two horizontally arranged telescopic cylinders, two rotating cylinders respectively connected with the ends of the two telescopic cylinders, and a support plate fixed on the positioning frame. The support plate is provided with a long strip through hole, and the rotating cutter moves through the long strip through hole.

[0028] More preferably, an automatic finished product counting and collecting device is connected downstream of the die-cutting and collecting assembly.

[0029] The control system pre-stores production formulas of different packaging bag specifications, and can automatically adjust the position of the slide plate, the path and depth of laser die-cutting, the attachment coordinates of the pull-tab, and the phase of the rotary die-cutting according to the selected formula.

[0030] Furthermore, the control system is built on an industrial PC and PLC and integrates an MES (Manufacturing Execution System) interface. The system communicates with the servo drivers, sensors and vision systems of each module via an industrial Ethernet interface. Operators can input or call production recipes through the human-machine interface, and the system automatically adjusts the unwinding width, printing registration parameters, laser die-cutting path, attachment position, die-cutting phase and tension setting value.

[0031] The multilayer co-extrusion blown film machine adds polyethylene, which, by mass fraction, contains 15-20% color masterbatch, 6-8% ethylene-vinyl acetate, 2-5% tackifying resin, 4-6% plasticizer, 1-3% wax and 1-3% graphene.

[0032] By mass fraction, (masterbatch + ethylene-vinyl acetate) / graphene = 8-12.

[0033] The positive effects of this invention are as follows:

[0034] (1) This solution integrates key processes such as printing, adding functional units (easy-tear opening, pull tab), lamination, and die-cutting into a continuous production line, eliminating intermediate handling and rewinding processes, and greatly improving production efficiency and material utilization.

[0035] (2) This solution adopts servo tension synchronous control and photoelectric registration technology to ensure the registration accuracy of the entire line. The laser die-cut easy-tear opening has no mechanical stress, the cut is smooth, precise and the depth is controllable, ensuring the reliability of the easy-tear function. Online visual inspection realizes 100% quality monitoring and ensures the yield rate;

[0036] (3) Through the composite module of the skateboard design and the formula-based control system, it can quickly respond to changes in production specifications and realize flexible production;

[0037] Simultaneously, in conjunction with the material design, the addition of ethylene-vinyl acetate helps to achieve the anti-slip function of hot melt adhesive, effectively preventing the packaging bag from shifting during transportation. The addition of tackifying resin, plasticizer, and wax increases the viscosity of the material while also increasing its fluidity. Finally, the addition of a small amount of graphene improves the thermal conductivity, which helps to improve the heat sealing effect, enhances mechanical properties and heat resistance, and provides good gas and liquid barrier properties, making it very suitable for packaging feminine care products.

[0038] (4) The production line adopts a relatively closed design and is equipped with static electricity elimination and surface cleaning devices, which effectively reduces dust pollution during the production process and better meets the high requirements of feminine care products for packaging hygiene. Attached Figure Description

[0039] Figure 1 This is a perspective view of the production apparatus in Embodiment 1 of the present invention.

[0040] Figure 2 This is a front view of the production apparatus in Embodiment 1 of the present invention.

[0041] Figure 3 This is a schematic diagram of the tension control component in Embodiment 1 of the present invention.

[0042] Figure 4 This is a schematic diagram of the high-speed gravure printing assembly in Embodiment 1 of the present invention.

[0043] Figure 5 This is a schematic diagram of the composite module in Embodiment 1 of the present invention.

[0044] Figure 6 This is a schematic diagram of the die-cutting and collecting component in Embodiment 1 of the present invention.

[0045] The attached figures are labeled as follows: 1. Multi-layer co-extrusion blown film machine; 2. Low temperature chamber; 3. Film material; 4. Rotary roller; 41. Micro motor; 5. Tension control component; 51. Lifting cylinder; 52. Fixed seat; 53. Adjusting shaft; 6. Pre-treatment component; 7. High-speed gravure printing component; 71. Feeding roller component; 72. Printing unit; 73. Discharge roller component; 8. Composite module; 81. Track; 82. Easy-tear laser die-cutting unit; 83. Slide plate; 84. Lifting tongue online attachment unit; 85. Adjusting cylinder; 9. Vision inspection system; 10. Bridge oven; 11. Heat sealing component; 111. Guide post; 12. Die-cutting component; 121. Rotary cutter; 13. Rotary cylinder; 14. Telescopic cylinder; 15. Support plate; 151. Long through hole. Detailed Implementation

[0046] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0047] Example 1

[0048] A production apparatus for packaging bags for women's care and protective products includes a frame and a control system. The frame is sequentially integrated along the process flow with a multi-layer co-extrusion blown film machine 1 for extruding multiple layers or multiple colors of film 3, a pretreatment component 6 for preliminary treatment of the substrate, a high-speed gravure printing component 7 for printing different colors onto the substrate, a composite module 8 for dry laminating the upper and lower films with a two-component polyurethane adhesive, and a die-cutting and collecting component for precise cutting and shaping of the packaging material.

[0049] The composite module 8 includes an easy-tear laser die-cutting unit 82 and a lifting tongue online attachment unit 84, which are adjusted and controlled by the control system.

[0050] It should be noted that after the material is processed from the multi-layer blown film machine, it becomes a cylindrical structure that can hold items. This is existing technology and will not be described in detail here.

[0051] The high-speed gravure printing assembly 7 includes a feeding roller assembly 71, a printing unit 72, and an output roller assembly 73 arranged sequentially on the frame. A photoelectric registration system is also provided on the frame, which is located near the output roller assembly 73. An ink cartridge is located below the printing unit 72.

[0052] The high-speed gravure printing assembly 7 is used for multi-color pattern printing on the outer packaging bag, and preferably, it can also be equipped with a drying system.

[0053] In short, optoelectronic alignment systems can be applied in various fields, such as aerospace, semiconductor manufacturing, and precision machining, to ensure high-precision assembly and positioning of components or products. Such systems typically include optical sensors, image processing units, control algorithms, and actuators. The optical sensor captures an image of the target object, the image processing unit analyzes the image data to determine positional deviations, the control algorithm calculates the necessary adjustments, and the actuator performs precise alignment.

[0054] In addition, a printing unit typically includes an ink supply system, a paper feeding system, a printing system, and a control system. The ink supply system is responsible for evenly delivering ink from the ink cartridge to the print head; the paper feeding system ensures that the paper is accurately positioned and transported; the printing system sprays ink onto the paper through printheads to form the desired pattern or text; and the control system coordinates the work of each part to ensure the smooth operation of the printing process.

[0055] The easy-tear laser die-cutting unit 82 and the lifting tongue online attachment unit 84 are both fixedly installed on both sides of the slide plate 83. The slide plate 83 is slidably installed on the fixed platform. The slide plate 83 is connected to the reciprocating motion mechanism. The slide plate 83 moves along the direction perpendicular to the conveying direction of the film material 3.

[0056] A camera is installed on the skateboard 83. The camera is connected to the printing laser engraving inspection system, which is connected to the reciprocating motion mechanism through the control system.

[0057] The slide plate 83 moves along a direction perpendicular to the conveying direction of the membrane material 3, mainly to take into account the slight positional deviation of the membrane material 3, and to make adaptive adjustments by moving vertically.

[0058] It should be noted that the camera is used to take pictures of the outer packaging bag during transmission, and then the pictures are sent to the printing laser engraving inspection system. The printing laser engraving inspection system has a pre-recorded reference image, which has been divided and processed into multiple detailed image elements. The outer packaging bag picture on the production line is compared with the reference image elements one by one. If they match, it means that the tear-off position is accurate. If they do not match, it means that the tear-off position is inaccurate.

[0059] When the tear-off opening and the attachment position are accurate, the tear-off laser die-cutting unit and the online attachment unit of the lifting tongue work normally. When the tear-off opening and the attachment position are inaccurate, the alarm light under the control of PLC will light up. At the same time, the PLC controls the reciprocating motion mechanism to adjust the position of the slide plate 83 accordingly.

[0060] The reciprocating motion mechanism in this solution is the adjusting cylinder 85, but it is not limited to the adjusting cylinder 85. It can also be other existing mechanical structures, which will not be described in detail here.

[0061] More preferably, the fixed platform is slidably mounted on the track 81, and the sliding direction of the fixed platform is parallel to the movement direction of the membrane material 3, which is used to adjust the longitudinal position.

[0062] More preferably, a multi-stage temperature-controlled bridge-type oven 10 is installed on one side of the fixed platform for the curing and drying of the adhesive. The bridge-type oven 10 is prior art and will not be described in detail here.

[0063] The easy-tear laser die-cutting unit 82 uses a CNC laser to precisely ablate the pre-printed film material 3 at a predetermined position to form an easy-tear line. The online attaching unit 84 is used to precisely attach the pre-formed attaching tongue to the corresponding position of the film material 3. This is a technology that is easy to operate in the field and will not be described in detail here.

[0064] The control system can drive the slide plate 83 to move to the corresponding width position of the film roll through the reciprocating motion mechanism according to the product specification instructions, thereby realizing the simultaneous production of packaging bags of multiple specifications by one machine.

[0065] A vision inspection system 9 is located near the die-cutting collection component. The vision inspection system 9 includes a high-speed line scan camera and an image processing unit, which is used to inspect the printing, tear-off, and adhesion quality. The image processing unit is connected to the printing laser engraving inspection system, which is connected to the alarm through the control system.

[0066] The detection results from the die-cutting collection component are fed back to the control system, which can then drive the inkjet printer to mark defective bags or remove them at the collection end via airflow nozzles. For design simplicity, the inkjet printer and airflow nozzles are not shown in the accompanying drawings.

[0067] It also includes a tension control component 5 disposed between the multi-layer co-extrusion blown film machine 1 and the pretreatment component 6. The tension control component 5 includes a floating roller mechanism, a servo motor connected to the floating roller mechanism, and a tension sensor. The tension sensor is embedded in the floating roller mechanism and contacts the film material 3.

[0068] The floating roller mechanism includes a horizontally arranged adjusting shaft 53, a fixed base 52 connected to both ends of the adjusting shaft 53, and a lifting cylinder 51 connected to the fixed base 52. There are two floating rollers, respectively arranged on the upper and lower sides of the film material and staggered. A servo motor is connected to one end of the adjusting shaft 53 to drive its rotation.

[0069] More preferably, a low-temperature chamber 2 is provided between the multi-layer co-extrusion blown film machine 1 and the tension control assembly 5. The film material passes through the low-temperature chamber 2 to cool the freshly blown film material and increase its formability.

[0070] In this solution, the outer packaging bag and film material 3 are the same expression in different situations, which is hereby noted.

[0071] More preferably, a rotating roller 4 is provided near the floating roller mechanism, one end of which is connected to a micro motor 41, and the membrane material 3 passes through the rotating roller 4 and enters the tension control component 5.

[0072] The tension control component 5 forms a closed-loop control system through a servo motor, tension sensor, and floating roller to ensure that the tension of the membrane material 3 is constant and synchronous during transmission.

[0073] Pretreatment component 6 includes an electrostatic eliminator and a plasma cleaner. The electrostatic eliminator and plasma cleaner are existing technologies and will not be described in detail here.

[0074] The die-cutting and collecting assembly includes a die-cutting assembly 12 and a collecting assembly. The die-cutting assembly 12 includes a rotating shaft and rotating cutters 121 arranged in a ring array outside the rotating shaft. The film material 3 is cut by rotating the rotating cutters 121.

[0075] The collection assembly includes a positioning frame, two horizontally arranged telescopic cylinders 14, a rotary cylinder 13 connected to the ends of the two telescopic cylinders 14 respectively, and a support plate 15 fixed on the positioning frame. The support plate 15 is provided with an elongated through hole 151, through which the rotary cutter 121 moves.

[0076] More preferably, heat-sealing components 11 are respectively provided on both sides of the die-cutting component 12 for heat-sealing both sides of the film material 3. Guide posts 111 are fixed on the heat-sealing component 11 for limiting the movement direction of the film material 3. The heat-sealing component 11 is prior art, and the specific sealing method and related parameters can be adjusted according to the actual situation, which will not be described in detail here.

[0077] The control system has pre-stored production formulas for different packaging bag specifications, and can automatically adjust the position of the slide plate 83, the path and depth of laser die-cutting, the attachment coordinates of the lifting tongue, and the phase of rotary die-cutting according to the selected formula.

[0078] Furthermore, the control system is built on an industrial PC and PLC and integrates an MES (Manufacturing Execution System) interface. The system communicates with the servo drives, sensors and vision systems of each module via an industrial Ethernet interface. Operators can input or call up production recipes through the human-machine interface, and the system automatically adjusts the unwinding width, printing registration parameters, laser die-cutting path, attachment position, die-cutting phase and tension settings.

[0079] The specific working process of this invention:

[0080] A production apparatus for packaging bags for women's care and protective products, wherein the frame 1 provides support for the entire production line. The film material 3 is first processed by a multi-layer co-extrusion blown film machine 1 to obtain a bag-shaped structure, and then passes through a tension control assembly 5 under the guidance of a conveyor roller (part of the multi-layer co-extrusion blown film machine 1). The operation of the entire packaging bag production line is ensured by the tension control assembly 5. Multiple servo motors, tension sensors, and floating rollers form a closed loop to ensure the stability of the tension of the film material 3 at each stage from unwinding to rewinding, avoiding stretching deformation or wrinkling.

[0081] The membrane material 3 then passes through an electrostatic eliminator and then through a plasma cleaner with a soft dust-adhesive roller to remove surface dust and foreign matter. The pretreatment component 6 includes an electrostatic eliminator and a plasma cleaner, which will not be described in detail here.

[0082] Next, the film material 3 enters the high-speed gravure printing assembly 7. This module has six printing units 72, capable of printing continuous patterns in up to six colors. Each printing unit 72 is followed by hot air drying to ensure rapid ink curing. A high-precision photoelectric registration system monitors the printing marks in real time and ensures accurate registration of each color pattern by adjusting the phase of the printing cylinder. The attached diagram only illustrates one printing unit 72, but it is not limited to one; this is for clarification.

[0083] After printing, the film material 3 enters the composite module 8. The control system drives the slide plate 83 to move according to the "280mm night use with lifting tongue" formula selected on the HMI, so that the laser die-cutting unit and the lifting tongue attaching unit are precisely positioned to the corresponding position of the film material 3 of this specification on the film width. The CNC laser ablates a "U"-shaped easy-tear line with a depth of about 50% of the film thickness at the predetermined position of the film material 3. This process is non-contact and burr-free. Then, the lifting tongue attaching unit precisely covers the easy-tear line area with the pre-coated lifting tongue sheet.

[0084] Subsequently, the membrane material 3, after its functions have been added, is guided to the bridge-type drying oven 10, where the adhesive is fully cured under segmented temperature control to form a strong composite film. The cured wide-width membrane material 3 then enters the final stage, first passing through the vision inspection system 9. A high-speed line scan camera, aided by a ring light source, continuously scans the membrane material 3, detecting printing defects, the integrity of the tear line, and whether the lifting tongue is missing or misaligned in real time. The inspection information is processed in real time, and if a defective product is found, its location is recorded by the system.

[0085] Subsequently, the film material 3 enters the die-cutting and collecting assembly, where the servo-driven rotating cutter 121 cooperates with the support plate 15 to punch the wide film material 3 into individual packaging bags.

[0086] More preferably, the rejection nozzles located at the front of the collection device blow marked defective products into the waste bin according to the instructions of the vision system. Qualified finished products are counted and neatly stacked in the finished product collection device, ready for packaging.

[0087] The control system is the brain of the equipment. The industrial PC / PLC 81 serves as the control core, processing all sensor signals and coordinating the actions of each module. Through the HMI, operators can manage production formulas, monitor equipment status, and view quality reports. When switching from "night use" to "day use" specifications, a single click recalls the formula, and the system automatically directs the slide movement, adjusts the laser path, changes the attachment position, and resets the die-cutting phase, achieving highly intelligent and flexible production.

[0088] Example 2

[0089] In the multi-layer co-extrusion blown film machine 1, polyethylene is added. By mass fraction, the polyethylene contains 15-20% color masterbatch, 6-8% ethylene-vinyl acetate, 2-5% tackifying resin, 4-6% plasticizer, 1-3% wax and 1-3% graphene.

[0090] By mass fraction, (masterbatch + ethylene-vinyl acetate) / graphene = 8-12.

[0091] This solution improves the design of polyethylene material. Compared with a single polyethylene film, the material film prepared by this complex formula has significantly improved anti-slip performance, and the friction performance (mainly referring to the coefficient of sliding friction) is also increased accordingly, which reduces the deviation of the film material during transmission by 65-74%.

[0092] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A production apparatus for packaging bags for feminine hygiene and protective products, comprising a frame and a control system, characterized in that, The support is sequentially integrated with the following components along the process flow: a multi-layer co-extrusion blown film machine (1) for extruding multiple layers or multiple colors of film (3); a pretreatment component (6) for preliminary treatment of the substrate; a high-speed gravure printing component (7) for printing different colors onto the substrate; a composite module (8) for dry laminating the upper and lower films with a two-component polyurethane adhesive; and a die-cutting and collecting component for precise cutting and shaping of packaging materials. The composite module (8) includes an easy-tear laser die-cutting unit (82) and a tongue-lifting online attachment unit (84), which are adjusted and controlled by the control system.

2. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The high-speed gravure printing assembly (7) includes a feeding roller assembly (71), a printing unit (72), and an output roller assembly (73) arranged sequentially on the frame. The frame is also equipped with a photoelectric registration system, which is located close to the output roller assembly (73). An ink cartridge is located below the printing unit (72).

3. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The easy-tear laser die-cutting unit (82) and the lifting tongue online attachment unit (84) are both fixedly installed on both sides of the slide plate (83). The slide plate (83) is slidably installed on the fixed platform. The slide plate (83) is connected to the reciprocating motion mechanism. The slide plate (83) moves in a direction perpendicular to the conveying direction of the film material (3). A camera is installed on the skateboard (83), and the camera is connected to the printing laser engraving detection system. The printing laser engraving detection system is connected to the reciprocating motion mechanism through the control system.

4. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 3, characterized in that, A visual inspection system (9) is provided near the die-cutting collection component. The visual inspection system (9) includes a high-speed line array camera and an image processing unit for detecting printing, tear-off edges and adhesion quality. The image processing unit is connected to the printing laser engraving inspection system, which is connected to an alarm through a control system.

5. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, It also includes a tension control component (5) disposed between the multi-layer co-extrusion blown film machine (1) and the pretreatment component (6). The tension control component (5) includes a servo motor, a tension sensor and a floating roller mechanism. The tension sensor is disposed on the floating roller mechanism and the servo motor is connected to the floating roller mechanism.

6. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The pretreatment component (6) includes an electrostatic eliminator and a plasma cleaner.

7. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The die-cutting and collecting assembly includes a die-cutting assembly (12) and a collecting assembly. The die-cutting assembly (12) includes a rotating shaft and rotating cutters (121) arranged in a ring array outside the rotating shaft. The collection assembly includes a positioning frame, two horizontally arranged telescopic cylinders (14), a rotary cylinder (13) connected to the ends of the two telescopic cylinders (14) respectively, and a support plate (15) fixed on the positioning frame. The support plate (15) is provided with a long through hole (151), and the rotary cutter (121) moves through the long through hole (151).

8. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The control system has pre-stored production formulas for different packaging bag specifications, and can automatically adjust the position of the slide plate (83), the path and depth of laser die-cutting, the attachment coordinates of the lifting tongue, and the phase of rotary die-cutting according to the selected formula.

9. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 1, characterized in that, The multilayer co-extrusion blown film machine (1) contains polyethylene, which, by mass fraction, contains 15-20% color masterbatch, 6-8% ethylene-vinyl acetate, 2-5% tackifying resin, 4-6% plasticizer, 1-3% wax and 1-3% graphene.

10. The apparatus for producing packaging bags for feminine hygiene and protective products according to claim 9, characterized in that, By mass fraction, (masterbatch + ethylene-vinyl acetate) / graphene = 8-12.

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