Outer packing equipment for disposable underpants

Abstract

The disposable underpants outer packaging equipment comprises a machine base, a conveying mechanism, a feeding mechanism, a bag opening mechanism, a limiting mechanism, a hot melting mechanism and a discharging mechanism, the conveying mechanism conveys independently-packaged underpants to the feeding mechanism, the bag opening mechanism keeps an opening of an outer packaging bag open, a feeding air cylinder pushes the underpants into the bag, and the limiting mechanism fixes the position of the outer packaging bag; and the hot melting mechanism slides in the vertical direction, an opening of the outer packaging bag is subjected to heat sealing, the sealed outer packaging bag is conveyed out of the station through the discharging mechanism, and the underpants packaging efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of underwear packaging equipment, especially the outer packaging equipment for disposable underwear. Background Art

[0002] In the underwear industry, especially in the packaging process of underwear, traditional manual packaging methods have problems such as low efficiency, high labor intensity, and poor packaging consistency. With the continuous growth of market demand and the improvement of consumers' requirements for product quality, traditional packaging methods have been difficult to meet the needs of modern production.

[0003] Among them, the traditional packaging method is to put several individually packaged underwear into a larger outer packaging bag, and then the operator seals the opening of the outer packaging bag through a sealing machine.

[0004] Therefore, although this traditional manual packaging method can meet production requirements to a certain extent, it has obvious disadvantages, such as low efficiency, high labor intensity, poor packaging consistency, and it is difficult to meet the needs of large-scale production. Summary of the Invention

[0005] In order to improve the packaging efficiency of underwear, this application provides an outer packaging device for disposable underwear.

[0006] The outer packaging device for disposable underwear provided by this application adopts the following technical solutions:

[0007] The outer packaging device for disposable underwear includes a machine base, on which a conveying mechanism, a feeding mechanism, a bag-opening supporting mechanism, a hot-melting mechanism, and a discharging mechanism are arranged. The conveying mechanism conveys several batches of individually packaged underwear to the feeding mechanism. The bag-opening supporting mechanism controls the opening of the outer packaging bag to open and maintains the open state. The feeding mechanism is used to push several individually packaged underwear through the bag-opening supporting mechanism and into the outer packaging bag. The hot-melting mechanism is located above the limiting mechanism, and the hot-melting mechanism presses and heat-seals the opening of the outer packaging bag. The discharging mechanism is located on one side of the limiting mechanism, and the discharging mechanism is used to send out the sealed outer packaging bag from the work station.

[0008] Preferably, the conveying mechanism includes a conveyor belt and several groups of vertical plates. Several groups of the vertical plates are fixedly arranged on the surface of the conveyor belt at intervals along the length direction of the conveyor belt. The number of the vertical plates in the same group is two, and a material placing groove is formed between the two vertical plates.

[0009] Preferably, the feeding mechanism includes a feeding cylinder and a compaction cylinder. The feeding cylinder is fixed to the machine base, and the feeding cylinder faces the bag-supporting mechanism. A first push plate is fixed to the piston rod of the feeding cylinder. The first push plate is located on one side of the material discharge groove and corresponds to the shape of the material discharge groove. The compaction cylinder is installed on the machine base, and the piston rod of the compaction cylinder vertically faces the material discharge groove. A pressing plate is perpendicularly fixed to the end of the piston rod of the compaction cylinder.

[0010] Preferably, the bag-supporting mechanism includes two symmetrically arranged and parallel bag-supporting plates and a bag-supporting cylinder for driving the bag-supporting plates to move up and down. An installation frame is fixed to the upper surface of the machine base. The two bag-supporting cylinders are respectively fixed to the upper and lower sides of the installation frame. The two bag-supporting plates are respectively fixed to the piston rods of the two bag-supporting cylinders. A feeding channel is formed between the two bag-supporting plates, and the feeding channel is communicated with the material discharge groove.

[0011] Preferably, a limiting mechanism is further arranged on the machine base. The limiting mechanism is located on the other side of the bag-supporting mechanism and is used for limiting the position of the outer packaging bag. The limiting mechanism includes a bag body limiting component, a side pushing limiting component, and a downward pressing limiting component. The bag body limiting component includes a lifting cylinder, a placing plate, and a baffle plate. The placing plate is arranged parallel to the horizontal plane and is used for supporting the outer packaging bag. The baffle plate is vertically arranged on the upper surface of the placing plate, and the baffle plate abuts against the bottom end of the outer packaging bag. The lifting cylinder is installed on one side of the machine base and drives the placing plate to move up and down.

[0012] Preferably, the side pushing limiting component includes a side pushing cylinder and two symmetrically arranged side pushing plates. The two side pushing plates respectively abut against the two side edges of the outer packaging bag, and the side pushing cylinder drives the side pushing plates to approach or move away from the two side edges of the outer packaging bag.

[0013] Preferably, the downward pressing limiting component includes a downward pressing cylinder and a downward pressing plate. The downward pressing plate is arranged above the placing plate, and the downward pressing plate abuts against the upper surface of the outer packaging bag. The downward pressing cylinder drives the downward pressing plate to move up and down.

[0014] Preferably, the limiting mechanism further includes a positioning component. The positioning component includes a first positioning plate and a second positioning plate. The first positioning plate and the second positioning plate are both fixed to the piston rod of the side pushing cylinder. The first positioning plate is vertically arranged, and the second positioning plate is horizontally arranged. The first positioning plate abuts against the side wall of the outer packaging bag, and the second positioning plate presses the edge of the outer packaging bag against the first positioning plate.

[0015] Preferably, the discharging mechanism includes a discharging air cylinder, a discharging push plate and a discharging box. After hot melt sealing, the lifting air cylinder drives the placing plate to move downward. The discharging box is located on one side of the placing plate. The discharging push plate is fixed to the piston rod of the discharging air cylinder. The discharging air cylinder drives the discharging push plate to move towards the outer packaging bag, so as to push the outer packaging bag after hot melt sealing into the discharging box for boxing.

[0016] Preferably, a storage box is fixed to the side wall of the machine base, and the front side wall and the top of the storage box are both open.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. Through the collaborative work of automated equipment, such as the continuous conveying of the conveying mechanism, the precise pushing of the feeding air cylinder, and the automatic sealing of the hot melt mechanism, the efficiency of the packaging process is significantly improved. At the same time, the consistency and quality of the packaging are ensured, and the errors caused by manual operation are reduced.

[0019] 2. The introduction of automated equipment reduces the dependence on manual labor, lowers the labor intensity, and also reduces the labor cost, making the packaging process more economical and efficient.

[0020] 3. The intelligent control system of the equipment can adjust packaging parameters according to production requirements, such as the number of packages and the packaging speed, improving the flexibility of the packaging process. It can quickly adapt to the packaging requirements of different batches and different specifications of underwear, enhancing the adaptability and market competitiveness of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the outer packaging equipment for disposable underwear in an embodiment of the present application.

[0022] Figure 2 is a schematic diagram of the overall structure of the outer packaging equipment for disposable underwear in another perspective in an embodiment of the present application.

[0023] Description of reference numerals: 1, machine base; 11, mounting frame; 111, pneumatic slide rail; 12, storage box; 2, conveying mechanism; 21, conveyor belt; 22, vertical plate; 221, feeding chute; 3, feeding mechanism; 31, feeding cylinder; 311, first push plate; 32, compaction cylinder; 321, pressing plate; 4, bag supporting mechanism; 41, bag supporting plate; 42, bag supporting cylinder; 5, limiting mechanism; 51, bag body limiting component; 511, lifting cylinder; 512, placing plate; 513, baffle; 52, side pushing limiting component; 521, side pushing cylinder; 522, side pushing plate; 53, downward pressing limiting component; 531, downward pressing cylinder; 532, downward pressing plate; 54, positioning component; 541, first positioning plate; 542, second positioning plate; 6, hot melting mechanism; 61, sliding plate; 62, melting knife; 7, discharging mechanism; 71, discharging cylinder; 72, discharging push plate; 73, discharging box. Detailed implementation manners

[0024] The upper, lower, left, right, front, rear, side, upper side, lower side, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientations should not be construed as restrictive terms.

[0025] The following will Figure 1 - Figure 2 further elaborate on this application in detail.

[0026] The embodiment of this application discloses an outer packaging device for disposable underwear. Referring to Figure 1 and Figure 2 , the outer packaging device for disposable underwear includes a machine base 1, which is erected on the ground. A conveying mechanism 2, a feeding mechanism 3, a bag supporting mechanism 4, a limiting mechanism 5, a hot melting mechanism 6, and a discharging mechanism 7 are arranged on the machine base 1. Among them, the machine base 1 is firmly erected on the ground, providing stable support for the entire device. The conveying mechanism 2 realizes continuous material supply by continuously conveying batches of individually packaged underwear to the feeding mechanism 3.

[0027] Meanwhile, the bag supporting mechanism 4 controls the opening of the outer packaging bag to open and maintains its open state through a mechanical device, facilitating the loading of the packaged underwear. At the same time, the feeding mechanism 3 accurately pushes several individually packaged underwear, enabling them to smoothly pass through the bag supporting mechanism 4 and enter the outer packaging bag, realizing automatic bagging.

[0028] In addition, the limiting mechanism 5 is located on the other side of the bag-supporting mechanism 4, precisely limiting the position of the outer packaging bag to ensure the accuracy and stability of the packaging process. At the same time, the hot-melt mechanism 6 is located above the limiting mechanism 5, pressing and heat-sealing the opening of the outer packaging bag to achieve fast and reliable sealing. Further, the discharging mechanism 7 is located on one side of the limiting mechanism 5, and the sealed outer packaging bag is sent out of the station to complete the entire packaging process.

[0029] To further improve the performance and adaptability of the equipment, the outer packaging equipment is also equipped with an intelligent control system, such as PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition), which is used to coordinate the entire packaging process and achieve efficient cooperation between devices. The control system can adjust packaging parameters according to production requirements, such as the number of packages and packaging speed, improving the flexibility of the packaging process and enabling it to quickly adapt to the packaging requirements of different batches and different specifications of underwear. In addition, the equipment is also built-in with a quality inspection system to monitor the packaging process in real time, ensure the packaging quality of each batch of products, reduce the defective rate, and thus ensure the consistency of packaging and the market competitiveness of products. Through the application of these automation technologies, the underwear industry can significantly improve the production efficiency of the packaging link, reduce labor costs, while ensuring the consistency of packaging quality and the market competitiveness of products, meeting the needs of large-scale production.

[0030] Specifically, the conveying mechanism 2 includes a conveyor belt 21 and several groups of vertical plates 22. The several groups of vertical plates 22 are fixedly arranged on the surface of the conveyor belt 21 at intervals along the length direction of the conveyor belt 21. In this embodiment, the conveyor belt 21 is driven by a servo motor, ensuring the precise control and stability of the conveying process. The number of each group of vertical plates 22 is set to two, and a material placement groove 221 is formed between the two vertical plates 22 for accommodating and guiding individually packaged underwear to ensure its stability and orderliness during the conveying process. In addition, the top edge of the vertical plate 22 is provided with an inclined guiding surface. This design helps the smooth transition of the underwear when it enters the material placement groove 221, reducing friction and jamming, and improving the conveying efficiency. The inclination angle and shape of the guiding surface are optimized to adapt to the size and shape of the underwear, ensuring the smoothness and safety of the underwear during the conveying process, and avoiding packaging damage or efficiency reduction caused by friction or jamming.

[0031] Further, after the operator puts the packaged underwear into the material placement groove 221, the underwear is sent to the outer packaging processing station through the feeding mechanism 3. Specifically, the feeding mechanism 3 includes a feeding cylinder 31 and a compaction cylinder 32. The feeding cylinder 31 is fixed on the machine base 1, the feeding cylinder 31 faces the bag-supporting mechanism 4, the pushing cylinder is horizontally arranged, and a first push plate 311 is fixed to the piston rod of the feeding cylinder 31. The first push plate 311 is located on one side of the material placement groove 221 and corresponds to the shape of the material placement groove 221.

[0032] Meanwhile, a mounting bracket 11 is fixed on the machine base 1. The mounting bracket 11 is U-shaped. The compaction cylinder 32 is installed on the mounting bracket 11. The piston rod of the compaction cylinder 32 is vertically oriented towards the feeding trough 221. A pressing plate 321 is perpendicularly fixed to the end of the piston rod of the compaction cylinder 32.

[0033] Therefore, after the operator puts the packaged underwear into the feeding trough 221, the feeding mechanism 3 starts to work. The feeding cylinder 31 is fixed on the machine base 1, and its piston rod is oriented towards the bag supporting mechanism 4. The pushing cylinder is horizontally arranged, and a first pushing plate 311 is fixed to the end of its piston rod. The first pushing plate 311 corresponds to the shape of the feeding trough 221. When the piston rod of the feeding cylinder 31 extends, the first pushing plate 311 smoothly pushes the underwear in the feeding trough 221 to the bag supporting mechanism 4, ready to enter the outer packaging bag. Meanwhile, a U-shaped mounting bracket 11 is fixed on the machine base 1, and the compaction cylinder 32 is installed on the mounting bracket 11, and its piston rod is vertically oriented towards the feeding trough 221. When the underwear is pushed to the bag supporting mechanism 4, the piston rod of the compaction cylinder 32 moves downward, and the pressing plate 321 at the end of the piston rod presses down vertically to compact the underwear, ensuring that the underwear can be placed more compactly and in a more accurate position when entering the outer packaging bag, avoiding displacement during the packaging process, thereby improving the packaging quality and efficiency. Through this series of precise motion controls, the feeding mechanism 3 can efficiently and stably send the underwear to the outer packaging processing station, providing continuous and stable material supply for the subsequent packaging process and ensuring the smooth progress of the packaging process.

[0034] On the other hand, before the underwear is fed, the operator sleeves the outer packaging bag on the bag supporting mechanism 4, and the bag supporting mechanism 4 performs the expansion work of the outer packaging bag.

[0035] Specifically, the bag supporting mechanism 4 includes two symmetrically and parallelly arranged bag supporting plates 41 up and down and a bag supporting cylinder 42 for driving the bag supporting plates 41 to move up and down. The two bag supporting cylinders 42 are respectively fixed on the upper and lower sides of the mounting bracket 11, and the two bag supporting plates 41 are respectively fixed on the piston rods of the two bag supporting cylinders 42. The two bag supporting plates 41 are both horizontally arranged, and a feeding channel is formed between the two bag supporting plates 41. The feeding channel is communicated with the feeding trough 221.

[0036] Therefore, when the piston rod of the bag supporting cylinder 42 extends, the two bag supporting plates 41 move towards each other to expand the opening of the outer packaging bag, providing enough space for the underwear to be loaded. When the underwear enters the outer packaging bag through the feeding channel, the piston rod of the bag supporting cylinder 42 retracts, and the two bag supporting plates 41 return to their original positions, preparing for the next bag supporting action.

[0037] Furthermore, a storage box 12 is also fixed on the side wall of the machine base 1. The storage box 12 is for the operator to store multiple outer packaging bags.

[0038] Correspondingly, when the bag supporting mechanism 4 finishes supporting the bag and the underwear enters the outer packaging bag, before heat pressing and sealing, it is necessary to be limited by the limiting mechanism 5 to improve the accuracy of the position of the outer packaging bag during sealing.

[0039] Specifically, the limiting mechanism 5 includes a bag body limiting component 51, a side pushing limiting component 52, and a downward pressing limiting component 53. Among them, the bag body limiting component 51 includes a lifting cylinder 511, a placing plate 512, and a baffle plate 513. The placing plate 512 is arranged parallel to the horizontal plane and is used to support the outer packaging bag; the baffle plate 513 is vertically arranged on the upper surface of the placing plate 512, and the baffle plate 513 abuts against the bottom end of the outer packaging bag. The lifting cylinder 511 is installed on one side of the machine base 1 and drives the placing plate 512 to move up and down.

[0040] Therefore, when the bag supporting mechanism 4 finishes supporting the bag and the underwear enters the outer packaging bag, the limiting mechanism 5 starts to work to improve the accuracy of the position of the outer packaging bag during sealing. Specifically, the lifting cylinder 511 in the bag body limiting component 51 drives the placing plate 512 to move up and down, and stably supports the outer packaging bag on the placing plate 512. At this time, the baffle plate 513 is vertically arranged on the upper surface of the placing plate 512 and tightly abuts against the bottom end of the outer packaging bag, effectively restricting the movement of the outer packaging bag and ensuring its position is fixed during the heat pressing and sealing process.

[0041] Furthermore, the side pushing limiting component 52 includes a side pushing cylinder 521 and two symmetrically arranged side pushing plates 522. The two side pushing plates 522 respectively abut against the two side edges of the outer packaging bag. The side pushing cylinder 521 is installed on the side wall of the mounting frame 11 and is horizontally arranged. The side pushing cylinder 521 drives the side pushing plates 522 to approach or move away from the two side edges of the outer packaging bag.

[0042] Therefore, the side pushing cylinder 521 is installed on the side wall of the mounting frame 11 and is horizontally arranged, driving the two symmetrically arranged side pushing plates 522 to approach or move away from the two side edges of the outer packaging bag. When the bag supporting mechanism 4 finishes supporting the bag, the underwear enters the outer packaging bag, and while the bag body limiting component 51 is positioning, the side pushing cylinder 521 starts, pushing the two side pushing plates 522 to move inward, so that the side pushing plates 522 tightly abut against the two side edges of the outer packaging bag, thereby restricting the lateral movement of the outer packaging bag and ensuring the accuracy of the position of the outer packaging bag during heat pressing and sealing.

[0043] Furthermore, the downward pressing limiting component 53 includes a downward pressing cylinder 531 and a downward pressing plate 532. The downward pressing plate 532 is arranged above the placing plate 512, and the downward pressing plate 532 abuts against the upper surface of the outer packaging bag. The downward pressing cylinder 531 is fixed to the side wall of the mounting frame 11, and the downward pressing cylinder 531 drives the downward pressing plate 532 to move up and down.

[0044] Therefore, when the pressing cylinder 531 is activated, the piston rod of the pressing cylinder 531 pushes the lower pressing plate 532 downward, causing the lower pressing plate 532 to closely abut against the upper surface of the outer packaging bag, thereby restricting the vertical movement of the outer packaging bag and ensuring the accuracy of the position of the outer packaging bag during heat sealing. Through the precise control of the pressing limit component 53, the stability of the outer packaging bag during the sealing process is further improved, ensuring the packaging quality and efficiency.

[0045] On the other hand, in order to save the space occupied by the outer packaging bag, the limiting mechanism 5 further includes a positioning component 54. The positioning component 54 includes a first positioning plate 541 and a second positioning plate 542. Both the first positioning plate 541 and the second positioning plate 542 are fixed to the piston rod of the side pushing cylinder 521. The first positioning plate 541 is vertically arranged, and the second positioning plate 542 is horizontally arranged. The first positioning plate 541 abuts against the side wall of the outer packaging bag, and the second positioning plate 542 presses the edge of the outer packaging bag against the first positioning plate 541.

[0046] It should be noted that in this embodiment, the side pushing cylinder 521 is a multi-rod cylinder, and controlling the movement of the side pushing plate 522 and controlling the movement of the first positioning plate 541 and the second positioning plate 542 are independent control actions.

[0047] Therefore, when the side pushing cylinder 521 is activated, it not only pushes the side pushing plate 522 inward to restrict the lateral movement of the outer packaging bag, but also the multi-rod structure of the side pushing cylinder 521 independently controls the movement of the first positioning plate 541 and the second positioning plate 542. The first positioning plate 541 is vertically arranged and abuts against the side wall of the outer packaging bag, while the second positioning plate 542 is horizontally arranged and presses the edge of the outer packaging bag against the first positioning plate 541 to achieve the positioning and folding of the bag mouth.

[0048] Through the precise control of the positioning component 54, the excess part of the outer packaging bag can be effectively folded, reducing the overall space occupied by the outer packaging bag, improving the compactness and aesthetics of the packaging. At the same time, this design also optimizes the packaging process, reduces material waste, and improves the packaging efficiency and quality.

[0049] On the other hand, after the limiting mechanism 5 limits the outer packaging bag, the heat melting mechanism 6 seals the opening of the outer packaging bag.

[0050] Specifically, the heat melting mechanism 6 includes a sliding plate 61 and two symmetrically arranged melting knives 62. On both sides of the side wall of the mounting frame 11, pneumatic slide rails 111 are installed along the vertical direction. There are two sliding plates 61. The two sliding plates 61 are arranged at intervals along the vertical direction and are installed between the two pneumatic slide rails 111. The two sliding plates 61 slide vertically and move in opposite directions.

[0051] Correspondingly, two melting knives 62 are respectively installed on two sliding plates 61. The pneumatic slide rail 111 can drive the two melting knives 62 to move. The melting knives 62 are located between the placing plate 512 and the bag supporting plate 41. The sliding plates 61 drive the two melting knives 62 to clamp and heat-seal the outer packaging bag by heat fusion.

[0052] Therefore, after the limiting mechanism 5 completes the limiting of the outer packaging bag, the pneumatic slide rail 111 is started to drive the two sliding plates 61 to move, and drive the melting knives 62 to clamp the outer packaging bag and perform heat-sealing. The melting knives 62 are located between the placing plate 512 and the bag supporting plate 41 to ensure that the opening of the outer packaging bag is accurately sealed, thus completing the packaging process. Through the precise control of the heat fusion mechanism 6, the sealing quality of the outer packaging bag is guaranteed, ensuring the sealing and aesthetics of the packaging.

[0053] Furthermore, the discharging mechanism 7 includes a discharging air cylinder 71, a discharging push plate 72 and a discharging box 73. After heat-sealing, the lifting air cylinder 511 drives the placing plate 512 to move downward. The discharging air cylinder 71 is installed on the machine base 1 and is horizontally arranged. The discharging box 73 is located on one side of the placing plate 512. The discharging box 73 is erected on the ground and its top is open. The discharging push plate 72 is fixed to the piston rod of the discharging air cylinder 71. The discharging air cylinder 71 drives the discharging push plate 72 to move towards the outer packaging bag to push the outer packaging bag with heat-sealed mouth into the discharging box 73 for boxing.

[0054] Therefore, when the discharging air cylinder 71 is started, it drives the discharging push plate 72 to move towards the outer packaging bag, and smoothly pushes the outer packaging bag with heat-sealed mouth into the discharging box 73, thus completing the discharging and boxing process of the outer packaging bag.

[0055] The implementation principle of the outer packaging equipment for disposable underwear in the embodiment of the present application is as follows:

[0056] The core of the equipment is to realize the efficient and continuous packaging of underwear through the coordinated work of a series of automatic mechanisms. First, the conveying mechanism 2 continuously conveys the independently packaged underwear to the feeding mechanism 3 to ensure the stable supply of materials. The bag supporting mechanism 4 controls the opening of the outer packaging bag through a mechanical device to keep it open so that the underwear can be smoothly loaded. The feeding mechanism 3 accurately pushes the underwear so that it passes through the bag supporting mechanism 4 and enters the outer packaging bag to realize automatic bagging. The limiting mechanism 5 accurately limits the outer packaging bag to ensure the accuracy of the packaging process. The heat fusion mechanism 6 is above the limiting mechanism 5. Through pressing and heat-sealing, the opening of the outer packaging bag is quickly and reliably sealed. Finally, the discharging mechanism 7 sends out the sealed outer packaging bag from the working station to complete the entire packaging process. The precise control and efficient cooperation of this series of mechanisms ensure the automation, continuity of the packaging process and the stability of the packaging quality.

[0057] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. The outer packaging device for disposable underwear, characterized in that, It includes a machine base (1), on which a conveying mechanism (2), a feeding mechanism (3), a bag supporting mechanism (4), a hot melting mechanism (6) and a discharging mechanism (7) are arranged. The conveying mechanism (2) conveys a plurality of independently packaged underwear in multiple batches to the feeding mechanism (3). The bag supporting mechanism (4) controls the opening of the outer packaging bag to open and maintains the open state. The feeding mechanism (3) is used to push a plurality of independently packaged underwear through the bag supporting mechanism (4) and into the outer packaging bag. The hot melting mechanism (6) is located above the limiting mechanism (5), and the hot melting mechanism (6) presses and heat-seals the opening of the outer packaging bag. The discharging mechanism (7) is located on one side of the limiting mechanism (5), and the discharging mechanism (7) is used to send out the sealed outer packaging bag from the working station.

2. The outer packaging device for disposable underwear according to claim 1, characterized in that, The conveying mechanism (2) includes a conveyor belt (21) and several groups of vertical plates (22). Several groups of the vertical plates (22) are fixedly arranged on the surface of the conveyor belt (21) at intervals along the length direction of the conveyor belt (21). The number of the vertical plates (22) in the same group is two, and a material placing groove (221) is formed between the two vertical plates (22).

3. The outer packaging device for disposable underwear according to claim 2, characterized in that, The feeding mechanism (3) includes a feeding air cylinder (31) and a compaction air cylinder (32). The feeding air cylinder (31) is fixed on the machine base (1), the feeding air cylinder (31) faces the bag supporting mechanism (4), a first push plate (311) is fixed on the piston rod of the feeding air cylinder (31), the first push plate (311) is located on one side of the material placing groove (221) and corresponds to the shape of the material placing groove (221). The compaction air cylinder (32) is installed on the machine base (1), the piston rod of the compaction air cylinder (32) is vertically oriented towards the material placing groove (221), and a pressing plate (321) is perpendicularly fixed at the end of the piston rod of the compaction air cylinder (32).

4. The outer packaging device for disposable underwear according to claim 2, characterized in that, The bag supporting mechanism (4) includes two symmetrically arranged and parallel bag supporting plates (41) up and down and a bag supporting air cylinder (42) for driving the bag supporting plates (41) to move up and down. An installation frame (11) is fixed on the upper surface of the machine base (1), the two bag supporting air cylinders (42) are respectively fixed on the upper and lower sides of the installation frame (11), the two bag supporting plates (41) are respectively fixed on the piston rods of the two bag supporting air cylinders (42), and a feeding channel is formed between the two bag supporting plates (41), and the feeding channel is communicated with the material placing groove (221).

5. The outer packaging device for disposable underwear according to claim 4, characterized in that, A limiting mechanism (5) is further provided on the machine base (1). The limiting mechanism (5) is located on the other side of the bag supporting mechanism (4). The limiting mechanism (5) is used to limit the position of the outer packaging bag. The limiting mechanism (5) includes a bag body limiting component (51), a side pushing limiting component (52) and a downward pressing limiting component (53). The bag body limiting component (51) includes a lifting cylinder (511), a placing plate (512) and a baffle plate (513). The placing plate (512) is arranged parallel to the horizontal plane and is used to support the outer packaging bag. The baffle plate (513) is vertically arranged on the upper surface of the placing plate (512), and the baffle plate (513) abuts against the bottom end of the outer packaging bag. The lifting cylinder (511) is installed on one side of the machine base (1) and drives the placing plate (512) to move up and down.

6. The outer packaging device for disposable underwear according to claim 5, characterized in that, The side pushing limiting component (52) includes a side pushing cylinder (521) and two symmetrically arranged side pushing plates (522). The two side pushing plates (522) respectively abut against the two side edges of the outer packaging bag. The side pushing cylinder (521) drives the side pushing plates (522) to approach or move away from the two side edges of the outer packaging bag.

7. The outer packaging device for disposable underwear according to claim 5, characterized in that, The downward pressing limiting component (53) includes a downward pressing cylinder (531) and a downward pressing plate (532). The downward pressing plate (532) is arranged above the placing plate (512), and the downward pressing plate (532) abuts against the upper surface of the outer packaging bag. The downward pressing cylinder (531) drives the downward pressing plate (321) to move up and down.

8. The outer packaging device for disposable underwear according to claim 6, characterized in that, The limiting mechanism (5) further includes a positioning component (54). The positioning component (54) includes a first positioning plate (541) and a second positioning plate (542). The first positioning plate (541) and the second positioning plate (542) are both fixed to the piston rod of the side pushing cylinder (521). The first positioning plate (541) is vertically arranged, and the second positioning plate (542) is horizontally arranged. The first positioning plate (541) abuts against the side wall of the outer packaging bag, and the second positioning plate (542) presses the edge of the outer packaging bag against the first positioning plate (541).

9. The outer packaging device for disposable underwear according to claim 5, characterized in that The discharging mechanism (7) includes a discharging cylinder (71), a discharging push plate (72) and a discharging box (73). After hot melt sealing, the lifting cylinder (511) drives the placing plate (512) to move downward. The discharging box (73) is located on one side of the placing plate (512). The discharging push plate (72) is fixed to the piston rod of the discharging cylinder (71). The discharging cylinder (71) drives the discharging push plate (72) to move towards the outer packaging bag to push the outer packaging bag after hot melt sealing into the discharging box (73) for boxing.

10. The outer packaging device for disposable underwear according to claim 5, characterized in that, A storage box (12) is fixed to the side wall of the machine base (1). The front side wall and the top of the storage box (12) are both open.

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