A sanitary napkin packaging apparatus

Abstract

The utility model relates to sanitary towel packaging technical field, especially a sanitary towel packaging device, including platform, the folding mechanism, the film coating mechanism and the encapsulation mechanism are installed in proper order from front to back along the production direction on the platform, the folding mechanism includes two opposite setting baffle fixedly installed on the platform, the push rod is installed on the platform between two baffle, the push rod is connected with the translation drive assembly, the baffle rear end's platform is installed with two opposite setting L shaped board, the L shaped board one side lever middle part is articulated on the platform, and the L shaped board this side lever end is articulated with the piston rod of cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin packaging technology, and in particular to a sanitary napkin packaging device. Background Technology

[0002] In the hygiene product manufacturing industry, the packaging process for sanitary napkins is a core step in ensuring product hygiene and safety and extending shelf life. Its packaging quality directly impacts consumer experience and product market competitiveness. With increasing awareness of women's health, the market is demanding higher standards for the neatness, sealing, and production efficiency of sanitary napkin packaging, driving the transformation of packaging equipment from semi-automatic to fully automated.

[0003] While current mainstream sanitary napkin packaging equipment covers the three core processes of folding, lamination, and sealing, it mostly adopts a decentralized structural design. The lack of a unified platform to integrate each process module results in large equipment footprint, time lags between each link, difficulty in adapting to the continuous operation requirements of high-speed production lines, and high equipment debugging and maintenance costs.

[0004] Specifically, the existing technology has the following defects: the folding, laminating, and sealing processes are not arranged sequentially along a unified platform in the production direction, the connection between each process is disconnected, the sanitary napkin cannot smoothly enter the laminating channel after folding, and the sealing process is also difficult to handle efficiently, resulting in low packaging qualification rate and limited production efficiency. Utility Model Content

[0005] To address the current problems of low packaging qualification rate and limited production efficiency caused by the fact that the folding, laminating, and sealing processes are not arranged sequentially along a unified platform in the production direction, the connection between each process is disconnected, the folded sanitary napkin cannot smoothly enter the laminating channel, and the sealing process is also difficult to handle efficiently, this utility model provides a sanitary napkin packaging device.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A sanitary napkin packaging device includes a platform on which a folding mechanism, a film-coating mechanism, and a sealing mechanism are sequentially mounted from front to back along the production direction. The folding mechanism includes two opposing baffles fixedly mounted on the platform. A push rod is mounted on the platform between the two baffles. The push rod is connected to a translation drive assembly. Two opposing L-shaped plates are mounted on the platform at the rear end of the baffles. The middle of one side rod of the L-shaped plate is hinged to the platform, and the end of the rod on that side is hinged to the piston rod of a cylinder. The cylinder body of the cylinder is hinged to the bottom surface of the platform. The other side rod of the L-shaped plate is mounted above the platform. The sanitary napkin can be folded by the two L-shaped plates under the push of the push rod and then pushed to the film-coating mechanism to wrap the packaging film, and then sealed by the sealing mechanism. By integrating the folding mechanism, laminating mechanism, and packaging mechanism on the platform and arranging them sequentially along the production direction, the problems of existing equipment being scattered across the land and time differences in process connections are solved. The baffles set opposite each other in the folding mechanism enable precise guidance of sanitary napkins, the push rod works in conjunction with the translation drive component to push them stably, and the L-shaped plate and the cylinder work together to complete the folding, effectively improving the situation of sanitary napkin folding deviation and wrinkles. At the same time, the various processes are connected in an orderly manner along the platform, so that the folded sanitary napkins can smoothly enter the laminating and packaging stages, avoiding disconnection and significantly improving the packaging qualification rate and production efficiency.

[0008] Preferably, the baffle includes a vertical plate; the vertical plate is fixedly mounted on the platform; an inclined plate is connected to the middle of the inner side of the vertical plate; the inclined plate is set at an acute angle with the top surface of the platform; a pre-pressure plate is set between the two inclined plates; the pre-pressure plate is set above the platform via a bracket; and a push rod is set between the pre-pressure plate and the platform. The vertical plate provides basic guidance for the sanitary napkin, avoiding initial conveying deviation; the acute angle between the inclined plate and the top surface of the platform guides the sanitary napkin to gather towards the center, preparing for subsequent folding; the pre-pressure plate is set between the two inclined plates via a bracket, pre-pressing the center of the sanitary napkin during conveying to prevent wrinkling or vertical movement, and facilitating the baffle to fold both ends of the sanitary napkin inward to the top of the pre-pressure plate; the push rod is placed between the pre-pressure plate and the platform, and under the pre-pressure limit, it can push the center of the sanitary napkin more accurately and stably. The cooperation of these three components further improves the regularity of the sanitary napkin before conveying and folding, reduces folding deviations caused by insufficient guidance or lack of pre-pressure, and ensures smooth connection of subsequent lamination and packaging processes.

[0009] Preferably, the push rod is positioned perpendicular to the production direction on the top surface of the platform; the translation drive assembly includes an L-shaped connecting rod fixedly connected to the front side of the push rod; the end of the connecting rod away from the push rod is connected to a screw slide; the screw slide is mounted on the bottom surface of the platform via a mounting bracket; a groove is provided on the platform to accommodate the connecting rod. In the translation drive assembly, the L-shaped connecting rod connects the push rod and the screw slide, achieving stable power transmission; the groove on the platform matches the connecting rod, limiting its movement trajectory and preventing it from wobbling or deviating, thereby ensuring the stability and accuracy of the push rod when pushing the sanitary napkin, laying the foundation for the subsequent smooth entry of the sanitary napkin into the folding process and ensuring the neatness of the folds.

[0010] Preferably, the laminating mechanism includes an upper roller shaft mounted above the platform and a lower roller shaft mounted below the platform; the upper roller shaft is mounted on a lifting assembly; the lifting assembly is mounted on the platform; the ends of the packaging film wound on the upper roller shaft and the ends of the packaging film wound on the lower roller shaft are heat-fused together; a clearance through-hole is provided on the platform to accommodate the packaging film; the clearance through-hole is located behind the L-shaped plate along the production direction. The upper and lower roller shafts are arranged vertically and vertically, and the ends of the packaging film wound on both are heat-fused together, ensuring that the folded sanitary napkin is fully wrapped by the packaging film when it passes through the packaging film; the upper roller shaft, mounted on the platform with the lifting assembly, can adjust its height according to the conveying of the sanitary napkin to reduce the tension of the packaging film and prevent the packaging film from being torn due to improper tension; the clearance through-hole on the platform is located behind the L-shaped plate, which can guide the folded sanitary napkin accurately and smoothly into the laminating area, achieving a seamless connection between the folding and laminating processes, improving laminating efficiency and wrapping accuracy.

[0011] Preferably, the lifting assembly includes columns fixedly mounted on the left and right sides of the platform top surface; through holes are opened on the columns; slide blocks are slidably mounted in the through holes; the two ends of the upper roller shaft are respectively rotatably mounted on the two slide blocks; the slide blocks are connected to push rods of electric push rods; the motor end of the electric push rod is mounted on the platform. The rotatable mounting of the two ends of the upper roller shaft on the slide blocks ensures smooth rotation of the roller shaft to convey the packaging film; the electric push rod drives the slide blocks to raise and lower the upper roller shaft, which can adjust the height of the upper roller shaft, thereby controlling the tension of the packaging film, preventing excessive tension from causing the packaging film to break, and providing a guarantee for the stable operation of the lamination process.

[0012] Preferably, a dovetail boss is provided on the inner wall of the through hole; a dovetail groove is provided on the slide block to match the dovetail boss. This ensures the stability of the slide block's sliding.

[0013] Preferably, the sealing mechanism includes a cutting component installed behind the film-coating mechanism; an inclined pressure guide plate is installed behind the cutting component via a second bracket; a rear pressure plate is installed behind the pressure guide plate; the rear pressure plate is connected to the second bracket via a second connecting rod; a heat-sealing component is installed above the rear pressure plate; and a conveyor is installed on a platform below the rear pressure plate. The cutting component, positioned behind the film-coating mechanism, can promptly cut the packaging film wrapping the sanitary napkin after heat sealing by the heat-sealing component, preparing for subsequent sealing; the inclined pressure guide plate guides the sanitary napkin wrapped in packaging film smoothly backward, avoiding jamming; the rear pressure plate, fixed to the second bracket via the second connecting rod, can further press down on the sanitary napkin wrapped in packaging film, providing a stable heat-sealing reference for the heat-sealing component and ensuring heat-sealing accuracy; the conveyor below the rear pressure plate can quickly transport the sealed product to the next stage after heat sealing, achieving continuous operation of guiding, positioning heat sealing, cutting, and conveying, effectively improving sealing efficiency and avoiding package accumulation.

[0014] Preferably, the cutting component is fixedly formed in a cutting groove on the platform; a cutter is slidably disposed within the cutting groove; the bottom end of the cutter is fixedly disposed on the slide of the screw slide table II; the screw slide table II is installed on the bottom surface of the platform. The cutting groove is fixedly formed on the platform to provide a stable sliding track for the cutter, preventing the cutter from deviating during cutting; the cutter is slidably disposed within the cutting groove and its bottom end is fixed to the screw slide table II on the bottom surface of the platform, which can drive the cutter to move back and forth precisely, ensuring accurate cutting position and a clean cut for the packaging film, and eliminating problems such as incomplete cutting or off-center cutting; at the same time, the screw slide table II is installed on the bottom surface of the platform, which does not occupy the working space on the top surface, reduces interference with other components, makes the packaging mechanism structure more compact, and ensures stable and efficient cutting.

[0015] Preferably, the heat-sealing assembly includes a heat-sealing element; the heat-sealing element is generally U-shaped; the bottom rod of the heat-sealing element is located between the pressure guide plate and the rear pressure plate, and the two side rods of the heat-sealing element are respectively located on the left and right sides of the rear pressure plate; an electric heating tube is installed inside the heat-sealing element; the piston rod of cylinder two is connected to the top surface of the two side rods of the heat-sealing element; the cylinder body of cylinder two is fixedly located on the bottom surface of bracket two. The U-shaped heat-sealing element, with its bottom rod located between the pressure guide plate and the rear pressure plate, and the two side rods located on the left and right sides of the rear pressure plate, can simultaneously heat-seal three sides of the sanitary napkin packaging without step-by-step operation, greatly improving heat-sealing efficiency; the electric heating tube inside the heat-sealing element can stably provide the temperature required for heat sealing, ensuring a firm and leak-free seal; cylinder two drives the heat-sealing element to move up and down, which can precisely control the heat-sealing pressure and contact time, avoiding damage to the seal due to excessive pressure or incomplete sealing.

[0016] Preferably, the bottom surface of the heat-sealing component is evenly provided with several frustums. This can increase the local pressure during heat sealing and improve the sealing and firmness of the packaging film.

[0017] As can be seen from the above technical solutions, the advantages of this utility model include: by integrating the folding mechanism, the film coating mechanism, and the packaging mechanism on the platform and arranging them sequentially along the production direction, the problems of existing equipment being scattered and occupying space, and time differences in process connections are solved; the baffles set opposite each other in the folding mechanism achieve precise guidance of sanitary napkins, the push rod cooperates with the translation drive component to push stably, and the L-shaped plate and the cylinder work together to complete the folding, effectively improving the situation of sanitary napkin folding deviation and wrinkles. At the same time, each process is connected in an orderly manner along the platform, so that the folded sanitary napkins can smoothly enter the film coating and packaging stages, avoiding disconnection, and significantly improving the packaging qualification rate and production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0022] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 .

[0023] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0024] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0025] Figure 7 This is a schematic diagram of the structure of the L-shaped plate of this utility model.

[0026] Figure 8 This is a schematic diagram of the structure of the heat-sealing component and the electric heating tube of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1-Platform, 2-Baffle, 3-Push rod, 4-L-shaped plate, 5-Pre-pressure plate, 6-Support 1, 7-Connecting rod 1, 8-Screw slide 1, 9-Mounting frame, 10-Cylinder 1, 11-Upper roller shaft, 12-Lower roller shaft, 13-Packaging film, 14-Column, 15-Slide seat, 16-Electric push rod, 17-Support 2, 18-Guide plate, 19-Rear pressure plate, 20-Connecting rod 2, 21-Cutter, 22-Screw slide 2, 23-Heat sealing component, 24-Electric heating tube, 25-Cylinder 2, 26-Conveyor;

[0028] Slide groove, 102-clearance through hole, 103-cutting groove; 201-vertical plate, 202-inclined plate; 1401-through hole; 2301-frustum; Figure 1 and Figure 2 The direction of the middle arrow indicates the production direction. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] like Figure 1-7 As shown, a sanitary napkin packaging device includes a platform 1. A folding mechanism, a film-coating mechanism, and a sealing mechanism are sequentially installed on the platform 1 from front to back along the production direction. The folding mechanism includes two opposing baffles 2 fixedly installed on the platform 1. A push rod 3 is installed on the platform 1 between the two baffles 2. The push rod 3 is connected to a translation drive assembly. Two opposing L-shaped plates 4 are installed on the platform 1 at the rear end of the baffles 2. The middle part of one side rod of the L-shaped plate 4 is hinged to the platform 1, and the piston rod of a cylinder 10 is hinged to the end of the side rod of the L-shaped plate 4. The cylinder body of the cylinder 10 is hinged to the bottom surface of the platform 1. The other side rod of the L-shaped plate 4 is installed above the platform 1. The sanitary napkin can be folded by the two L-shaped plates 4 under the push of the push rod 3 and pushed to the film-coating mechanism to wrap the packaging film 13, and then sealed by the sealing mechanism.

[0031] By integrating the folding mechanism, laminating mechanism, and packaging mechanism on platform 1 and arranging them sequentially along the production direction, the problems of existing equipment being scattered across the land and time differences in process connections are solved. The baffles 2 set opposite each other in the folding mechanism enable precise guidance of sanitary napkins, the push rod 3 works in conjunction with the translation drive component to push them stably, and the L-shaped plate and cylinder 10 work together to complete the folding, effectively improving the situation of sanitary napkin folding deviation and wrinkles. At the same time, each process is connected in an orderly manner along platform 1, so that the folded sanitary napkins can smoothly enter the laminating and packaging stages, avoiding disconnection and significantly improving the packaging qualification rate and production efficiency.

[0032] In the above configuration, the baffle 2 includes a vertical plate 201; the vertical plate 201 is fixedly mounted on the platform 1; an inclined plate 202 is connected to the middle of the inner side of the vertical plate 201; the inclined plate 202 is set at an acute angle with the top surface of the platform 1; a pre-pressure plate 5 is set between the two inclined plates 202; the pre-pressure plate 5 is set above the platform 1 via a bracket 6; a push rod 3 is set between the pre-pressure plate 5 and the platform 1. The push rod 3 is set on the top surface of the platform 1 perpendicular to the production direction; the translation drive assembly includes an L-shaped connecting rod 7 fixedly connected to the front side of the push rod 3; a screw slide 8 is connected to the end of the connecting rod 7 away from the push rod 3; the screw slide 8 is mounted on the bottom surface of the platform 1 via a mounting bracket 9; a groove 101 is provided on the platform 1 to cooperate with the connecting rod 7. The upright plate 201 provides basic guidance for the sanitary napkin, avoiding initial conveying deviation; the inclined plate 202 forms an acute angle with the top surface of the platform 1, which can guide the sanitary napkin to gather towards the center, preparing for subsequent folding; the pre-pressure plate 5 is mounted between the two inclined plates 202 through the bracket 6, which can pre-press the center of the sanitary napkin during conveying, preventing it from wrinkling or shifting up and down, and also making it convenient for the baffle 2 to fold the two ends of the sanitary napkin inward to the top of the pre-pressure plate 5; the push rod 3 is placed between the pre-pressure plate 5 and the platform 1, which can push the center of the sanitary napkin more accurately and stably under the pre-pressure limit. The three work together to further improve the regularity of the sanitary napkin before conveying and folding, reduce folding deviation caused by insufficient guidance and lack of pre-pressure, and ensure smooth connection of subsequent lamination and packaging. In the translation drive assembly, the L-shaped connecting rod 7 can connect the push rod 3 and the screw slide 8 to achieve stable power transmission; the slide groove 101 on the platform 1 is adapted to the connecting rod 7 to limit the movement trajectory of the connecting rod 7 and prevent it from shaking or deviating, thereby ensuring the stability and accuracy of the push rod 3 when pushing the sanitary napkin, laying the foundation for the subsequent smooth entry of the sanitary napkin into the folding process and ensuring the regularity of the folding.

[0033] The film coating mechanism includes an upper roller 11 mounted above platform 1 and a lower roller 12 mounted below platform 1. The upper roller 11 is mounted on a lifting assembly, which is also mounted on platform 1. The ends of the packaging film 13 wound on the upper roller 11 and the ends of the packaging film 13 wound on the lower roller 12 are heat-fused together. A clearance through-hole 102 is provided on platform 1 to accommodate the packaging film 13. The clearance through-hole 102 is located behind the L-shaped plate 4 along the production direction. The lifting assembly includes columns 14 fixedly mounted on the left and right sides of the top surface of platform 1. A through-hole 1401 is provided on the column 14. A slide block 15 is slidably mounted inside the through-hole 1401. The two ends of the upper roller 11 are rotatably mounted on the two slide blocks 15. The slide blocks 15 are connected to the push rods of an electric push rod 16. The motor end of the electric push rod 16 is mounted on platform 1. A dovetail boss is provided on the inner wall of the through-hole 1401. A dovetail groove is provided on the slide block 15 to accommodate the dovetail boss.

[0034] The upper roller shaft 11 and the lower roller shaft 12 are arranged vertically and vertically, and the ends of the packaging film 13 wound by the two are heat-fused together. When the folded sanitary napkin passes through the packaging film 13, it can ensure that the folded sanitary napkin is fully wrapped by the packaging film 13. The upper roller shaft 11 is installed on the platform 1 with a lifting component, which can adjust the height of the upper roller shaft 11 as the sanitary napkin is conveyed to reduce the tension of the packaging film 13 and prevent the packaging film 13 from being torn due to improper tension. The clearance through hole 102 on the platform 1 is set behind the L-shaped plate 4, which can guide the folded sanitary napkin to enter the film-coating area accurately and smoothly, realizing the seamless connection between the folding and film-coating processes, improving film-coating efficiency and wrapping accuracy. The two ends of the upper roller shaft 11 are rotatably mounted on the slide 15 to ensure that the roller shaft rotates smoothly to convey the packaging film 13. The electric push rod 16 drives the slide 15 to raise and lower the upper roller shaft 11, which can adjust the height of the upper roller shaft 11 and thus control the tension of the packaging film 13, preventing the packaging film 13 from being torn due to excessive tension, and providing a guarantee for the stable operation of the film-coating process. The cutting component is positioned behind the film-coating mechanism, allowing for timely cutting of the packaging film 13 wrapping the sanitary napkin after heat sealing by the heat-sealing component, preparing for subsequent packaging. The inclined pressure guide plate 18 guides the sanitary napkin wrapped in the packaging film 13 smoothly backward, preventing jamming. The rear pressure plate 19 is fixed to the bracket 17 via the connecting rod 20, further pressing down on the sanitary napkin wrapped in the packaging film 13, providing a stable heat-sealing reference for the heat-sealing component and ensuring heat-sealing accuracy. The conveyor 26 below the rear pressure plate 19 can quickly transport the packaged product to the next stage after heat sealing, realizing a continuous operation of guiding, positioning heat sealing, cutting, and conveying, effectively improving packaging efficiency and preventing package accumulation.

[0035] like Figure 2 , Figure 5 , Figure 6 and Figure 8As shown, the encapsulation mechanism includes a cutting assembly installed behind the film coating mechanism; an inclined pressure guide plate 18 is installed behind the cutting assembly via a second bracket 17; a rear pressure plate 19 is installed behind the pressure guide plate 18; the rear pressure plate 19 is connected to the second bracket 17 via a second connecting rod 20; a heat sealing assembly is fitted above the rear pressure plate 19; a conveyor 26 is installed on the platform 1 below the rear pressure plate 19. The cutting assembly has a cutting groove 103 fixedly formed on the platform 1; a cutter 21 is slidably arranged in the cutting groove 103; the bottom end of the cutter 21 is fixedly mounted on the slide of a second screw slide 22; the second screw slide 22 is installed on the bottom surface of the platform 1. The heat-sealing assembly includes a heat-sealing element 23; the heat-sealing element 23 is generally U-shaped; the bottom rod of the heat-sealing element 23 is located between the pressure guide plate 18 and the rear pressure plate 19, and the rods on both sides of the heat-sealing element 23 are respectively located on the left and right sides of the rear pressure plate 19; an electric heating tube 24 is installed inside the heat-sealing element 23; the piston rods of cylinder 25 are connected to the top surfaces of the rods on both sides of the heat-sealing element 23; the cylinder body of cylinder 25 is fixedly mounted on the bottom surface of bracket 17. Several frustums 2301 are evenly arranged on the bottom surface of the heat-sealing element 23, which can increase the local pressure during heat sealing and improve the sealing and firmness of the packaging film heat sealing.

[0036] The cutting component is positioned behind the film-coating mechanism, allowing for timely cutting of the packaging film 13 wrapping the sanitary napkin after heat sealing by the heat-sealing component, preparing for subsequent packaging. The inclined pressure guide plate 18 guides the sanitary napkin wrapped in the packaging film 13 smoothly backward, preventing jamming. The rear pressure plate 19 is fixed to the bracket 17 via the connecting rod 20, further pressing down on the sanitary napkin wrapped in the packaging film 13, providing a stable heat-sealing reference for the heat-sealing component and ensuring heat-sealing accuracy. The conveyor 26 below the rear pressure plate 19 can quickly transport the packaged product to the next stage after heat sealing, realizing a continuous operation of guiding, positioning heat sealing, cutting, and conveying, effectively improving packaging efficiency and preventing package accumulation. The cutting groove 103 is fixedly opened on the platform 1 to provide a stable sliding track for the cutter 21 and prevent the cutter 21 from deviating during cutting. The cutter 21 is slidably set in the cutting groove 103 and its bottom end is fixed to the screw slide 22 on the bottom surface of the platform 1. The screw slide 22 can drive the cutter 21 to move back and forth accurately, ensuring that the cutting position of the packaging film 13 is accurate and the cut is flat, and eliminating the problems of incomplete cutting or cutting off. At the same time, the screw slide 22 is installed on the bottom surface of the platform 1, which does not occupy the top working space, reduces interference with other components, makes the packaging mechanism structure more compact, and ensures the stability and efficiency of the cutting process. The U-shaped heat-sealing component 23 has its bottom rod located between the pressure guide plate 18 and the rear pressure plate 19, with the two side rods positioned on either side of the rear pressure plate 19. This allows for simultaneous heat sealing of three sides of the sanitary napkin packaging, eliminating the need for step-by-step operations and significantly improving heat sealing efficiency. The electric heating tube 24 inside the heat-sealing component 23 provides a stable temperature for heat sealing, ensuring a firm and leak-free seal. The cylinder 25 drives the heat-sealing component 23 to move up and down, precisely controlling the heat sealing pressure and contact time to prevent damage from excessive pressure or incomplete sealing.

[0037] The sanitary napkin packaging device operates in an orderly manner along the production direction according to the process of "folding-filming-sealing": First, the sanitary napkin enters the folding mechanism. The upright plate 201 provides initial guidance, and the inclined plate 202 guides it to gather towards the center. The pre-pressure plate 5 pre-presses the center of the sanitary napkin to prevent it from shifting and wrinkling. Then, the screw slide table 8 of the translation drive component drives the push rod 3 through the connecting rod 7 to stably push the sanitary napkin along the gap between the pre-pressure plate 5 and the platform 1. At the same time, the cylinder 10 extends and retracts to drive the two L-shaped plates 4 to rotate sequentially around the hinge point. That is, one L-shaped plate 4 first folds the upper end of the sanitary napkin, and the other L-shaped plate 4 then folds the lower end of the sanitary napkin, folding the pushed sanitary napkin into the preset shape.

[0038] The folded sanitary napkin passes through the clearance through hole 102 on the platform 1, and drives the packaging film 13 into the pressure guide plate 18 along the production direction, and then into the rear pressure plate 19; the ends of the packaging film 13 of the upper roller shaft 11 and the lower roller shaft 12 are heat-fused together, and the electric push rod 16 of the lifting component can drive the slide 15 to slide along the through hole 1401 of the column 14, adjust the height of the upper roller shaft 11 to reduce the tension of the packaging film 13, and ensure that the sanitary napkin is wrapped by the packaging film 13.

[0039] Subsequently, cylinder 25 pushes the concave heat-sealing component 23 down. The bottom rod of the heat-sealing component 23 and the two side rods simultaneously heat-seal the back and left and right sides of the toilet wrapped with packaging film 13. The bottom frustum 2301 increases the local pressure and improves the sealing edge firmness. Then, screw slide 22 drives the cutter 21 to slide along the cutting groove 103 to cut the packaging film 13. Finally, the belt conveyor 26 under the rear pressure plate 19 starts to transport the packaged sanitary napkin product to the next process, completing one complete packaging cycle.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sanitary napkin packaging device, comprising a platform (1), characterized in that, A folding mechanism, a film-coating mechanism, and a sealing mechanism are installed sequentially from front to back along the production direction on the platform (1). The folding mechanism includes two opposing baffles (2) fixedly installed on the platform (1). A push rod (3) is installed on the platform (1) between the two baffles (2). The push rod (3) is connected to a translation drive assembly. Two opposing L-shaped plates (4) are installed on the platform (1) at the rear end of the baffles (2). The middle part of one side rod of the L-shaped plate (4) is hinged to the platform (1), and the piston rod of cylinder one (10) is hinged to the end of the side rod of the L-shaped plate (4). The cylinder body of cylinder one (10) is hinged to the bottom surface of the platform (1). The other side rod of the L-shaped plate (4) is installed above the platform (1). The sanitary napkin can be pushed to the film-coating mechanism to wrap the packaging film (13) after being folded by the two L-shaped plates (4) under the push of the push rod (3), and then sealed by the sealing mechanism.

2. The sanitary napkin packaging device according to claim 1, characterized in that, The baffle (2) includes a vertical plate (201); the vertical plate (201) is fixedly installed on the platform (1); an inclined plate (202) is connected to the middle of the inner side of the vertical plate (201); the inclined plate (202) is set at an acute angle with the top surface of the platform (1); a pre-pressure plate (5) is set between the two inclined plates (202); the pre-pressure plate (5) is set above the platform (1) through a bracket (6); and a push rod (3) is set between the pre-pressure plate (5) and the platform (1).

3. The sanitary napkin packaging device according to claim 2, characterized in that, The push rod (3) is set on the top surface of the platform (1) perpendicular to the production direction; the translation drive assembly includes an L-shaped connecting rod (7) fixedly connected to the front side of the push rod (3); the end of the connecting rod (7) away from the push rod (3) is connected to a slide of a screw slide (8); the screw slide (8) is installed on the bottom surface of the platform (1) through a mounting bracket (9); a groove (101) is provided on the platform (1) to cooperate with the connecting rod (7).

4. The sanitary napkin packaging device according to claim 1, characterized in that, The film coating mechanism includes an upper roller shaft (11) installed above the platform (1) and a lower roller shaft (12) installed below the platform (1); the upper roller shaft (11) is installed on the lifting assembly; the lifting assembly is installed on the platform (1); the end of the packaging film (13) wound on the upper roller shaft (11) and the end of the packaging film (13) wound on the lower roller shaft (12) are heat-fused together; a clearance through hole (102) is provided on the platform (1) to accommodate the packaging film (13); the clearance through hole (102) is located behind the L-shaped plate (4) along the production direction.

5. The sanitary napkin packaging device according to claim 4, characterized in that, The lifting assembly includes columns (14) fixedly installed on the left and right sides of the top surface of the platform (1); through holes (1401) are opened on the columns (14); slide blocks (15) are slidably installed in the through holes (1401); the two ends of the upper roller shaft (11) are respectively rotatably installed on the two slide blocks (15); the slide blocks (15) are connected to the push rods of electric push rods (16); the motor end of the electric push rods (16) is installed on the platform (1).

6. The sanitary napkin packaging device according to claim 5, characterized in that, The inner wall of the through hole (1401) is provided with a dovetail boss; the slide (15) is provided with a dovetail groove to match the dovetail boss.

7. The sanitary napkin packaging device according to claim 1, characterized in that, The encapsulation mechanism includes a cutting assembly installed behind the film coating mechanism; a guide plate (18) with an inclination is installed behind the cutting assembly via a second bracket (17); a rear pressure plate (19) is installed behind the guide plate (18); the rear pressure plate (19) is connected to the second bracket (17) via a second connecting rod (20); a heat sealing assembly is installed above the rear pressure plate (19); and a conveyor (26) is installed on the platform (1) below the rear pressure plate (19).

8. The sanitary napkin packaging device according to claim 7, characterized in that, The cutting component is fixedly opened in the cutting groove (103) on the platform (1); a cutter (21) is slidably arranged in the cutting groove (103); the bottom end of the cutter (21) is fixedly arranged on the slide of the screw slide table (22); the screw slide table (22) is installed on the bottom surface of the platform (1).

9. The sanitary napkin packaging device according to claim 7, characterized in that, The heat sealing assembly includes a heat sealing element (23); the heat sealing element (23) is in the shape of a U-shaped frame; the bottom rod of the heat sealing element (23) is located between the pressure guide plate (18) and the rear pressure plate (19), and the rods on both sides of the heat sealing element (23) are respectively located on the left and right sides of the rear pressure plate (19); an electric heating tube (24) is installed inside the heat sealing element (23); the top surfaces of the rods on both sides of the heat sealing element (23) are connected to the piston rods of cylinder two (25); the cylinder body of cylinder two (25) is fixedly located on the bottom surface of bracket two (17).

10. The sanitary napkin packaging device according to claim 9, characterized in that, The bottom surface of the heat-sealed part (23) is evenly provided with several frustums (2301).

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