Automatic folding equipment for finished sanitary napkins

Abstract

The invention discloses a sanitary towel finished product automatic folding device, and relates to the technical field of sanitary product production, the sanitary towel finished product automatic folding device comprises a main frame and an auxiliary frame which are fixedly installed into a whole, a first conveying belt is arranged on the main frame, and a sanitary towel is placed at the top end of the first conveying belt; the main frame is sequentially provided with a pressure mechanism used for pressing the sanitary napkin, an edge folding piece used for folding side wings of the sanitary napkin, an edge pressing mechanism used for enhancing the overlapping degree of the sanitary napkin and the side wings of the sanitary napkin and two pressing and overlapping mechanisms used for integrally folding the sanitary napkin from left to right. According to the automatic folding equipment for the finished sanitary napkins, the first conveying belt is arranged to continuously convey and process the sanitary napkins, the blowing mechanism located right in front of the pressure mechanism is further arranged and used for blowing side wings of the sanitary napkins upwards, pressing and folding of the side wings are facilitated, the two pressing and folding mechanisms conduct two-time automatic pressing and folding on the sanitary napkins in sequence, automatic processing can be achieved in the whole process, and the production efficiency is improved. Manual assistance is not needed, and the production efficiency of sanitary napkins is improved.

Description

Technical Field

[0001] This invention relates to the field of hygiene product manufacturing technology, specifically to an automatic folding device for finished sanitary napkins. Background Technology

[0002] Sanitary napkins are a type of hygiene product used by women during menstruation. They are absorbent materials, primarily made of cotton, non-woven fabric, pulp, or a combination of these materials to form a polymer and polymer composite paper. After production and before packaging, sanitary napkins need to be folded to reduce their overall volume for easier packaging and to minimize the exposed area, thus ensuring their hygienic effect.

[0003] According to patent publication number CN220786387U, a folding device for processing sanitary napkins includes an operating table. A support column is welded to the bottom of the operating table, and a fixing device is provided on the top of the operating table. The fixing device includes a support frame, a first electric push rod, a connecting block, and a fixing plate. The support frame is welded to the top of the operating table, and the first electric push rod is provided on the top of the support frame. The bottom of the first electric push rod is threadedly connected to the connecting block, and the bottom of the connecting block is welded to the fixing plate. The fixing plate is movably attached to the top of the folding device. A lifting device is provided at the bottom of the support column. The lifting device includes a placement slot, a connecting plate, a second electric push rod, and a load-bearing plate. This folding device for processing sanitary napkins can effectively fold sanitary napkins and effectively store the folded sanitary napkins, eliminating the need for manual storage. It is more convenient to operate and has a faster processing speed. However, its problem is that although it can automatically store folded sanitary napkins, manual assistance is still required to place each sanitary napkin individually during folding, preventing continuous production. Therefore, its automation level is low and its production efficiency is relatively low.

[0004] Therefore, the present invention provides an automatic folding device for finished sanitary napkins. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic folding device for finished sanitary napkins, which solves the problem of low production efficiency caused by low automation compared to existing technologies.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: an automatic folding device for finished sanitary napkins, comprising a main frame and an auxiliary frame fixedly installed as one unit, a first conveyor belt being provided on the main frame, a sanitary napkin being placed at the top of the first conveyor belt, and a gap being provided between the main frame and the auxiliary frame; the main frame is provided with, from left to right, a pressure mechanism for pressing the sanitary napkin, a folding edge for folding the side wings of the sanitary napkin, a pressing edge mechanism for enhancing the overlap between the sanitary napkin and its side wings, and two folding mechanisms for folding the sanitary napkin as a whole;

[0007] The two folding mechanisms have the same structure and are located at the top and bottom of the first conveyor belt, respectively. The folding mechanism located at the top of the first conveyor belt is distributed perpendicularly to it and is used to fold the sanitary napkin once.

[0008] The folding mechanism located at the bottom end of the first conveyor belt is distributed parallel to it and is used to fold the sanitary napkins a second time.

[0009] The front surface of the main frame is also provided with a blower mechanism located directly in front of the pressure mechanism, which is used to blow the side wings of the sanitary napkin upwards;

[0010] The main frame is also equipped with a roller assembly for conveying sanitary napkins downwards, and the auxiliary frame is equipped with a third conveyor belt for outputting the folded sanitary napkins horizontally outwards.

[0011] Preferably, the first conveyor belt has a plurality of holes and slots, and the pressure mechanism includes a mounting frame 1 fixedly installed on the main frame. A toothed ring plate is movably passed through the top of the mounting frame 1, and a pressure plate is vertically fixedly connected to the bottom of the toothed ring plate. A plurality of pulleys are provided at the bottom of the pressure plate.

[0012] Preferably, the toothed ring plate is a detachable structure, and a half gear is meshed in the rack of the toothed ring plate. A first motor that drives the half gear to rotate is installed on the rear side of the mounting bracket.

[0013] Preferably, the folding member includes an inclined plate fixedly connected to the top of the main frame, the left end of the inclined plate corresponding vertically to the right end of the pressure plate, a baffle fixedly connected to the top of the inclined plate, and a baffle edge provided inside the baffle.

[0014] Preferably, the blower mechanism includes a mounting bracket two installed on the front side of the main frame, a blower is installed on the mounting bracket two, an air duct is fixedly connected to the air outlet of the blower, an air duct is fixedly connected to the other end of the air duct, the air duct is located in the interlayer of the first conveyor belt, and a number of exhaust holes are opened on the upper surface of the air duct.

[0015] Preferably, the pressing mechanism includes a mounting frame three installed on the rear side of the main frame. The mounting frame three is respectively provided with a first roller shaft located in the middle, a second roller shaft located to the lower left of the first roller shaft, and a third roller shaft located to the lower right of the first roller shaft. The second roller shaft and the third roller shaft are at the same height. Three pressing strips are sleeved on the first roller shaft, the second roller shaft and the third roller shaft. A second motor that drives the first roller shaft to rotate is installed on the rear side of the mounting frame three.

[0016] Preferably, the stacking mechanism includes a mounting frame four mounted on the main frame, a cylinder mounted on the top of the mounting frame four, a fixed plate fixedly connected to the front side of the mounting frame four, the output axis of the cylinder is downward and movably connected to a lifting rod, the lifting rod movably passes through the fixed plate and a stacking plate is fixedly connected to its bottom end, and the stacking plate is located in the gap between the main frame and the auxiliary frame.

[0017] Preferably, the roller assembly consists of two identical rollers, each with a first pulley at one end and a vertical belt fitted onto the two first pulleys. In the stacking mechanism located below the first conveyor belt, the stacking plate is positioned between the two rollers.

[0018] Preferably, the auxiliary frame is provided with a second conveyor belt at the same height as the top surface of the first conveyor belt. The second conveyor belt is used to receive a portion of the sanitary napkins conveyed to the right along the first conveyor belt. Each of the two conveyor wheels of the third conveyor belt is provided with a second pulley at one end, and a horizontal belt is sleeved on the two second pulleys.

[0019] Preferably, one end of one of the conveyor wheels of the third conveyor belt is also provided with a first gear, and the top of the first gear is meshed with a second gear of the same type. A guide roller located above the third conveyor belt is coaxially arranged on the second gear. The guide roller is located below the second conveyor belt. The guide roller is the same as the two rollers of the roller shaft group, and the guide roller corresponds to the upper roller shaft in the roller shaft group.

[0020] Beneficial effects

[0021] This invention provides an automatic folding device for finished sanitary napkins. Compared with the prior art, it has the following advantages:

[0022] (1) The automatic folding equipment for finished sanitary napkins continuously conveys and processes sanitary napkins by setting a first conveyor belt. A folding edge piece for folding the side wings of the sanitary napkin is set above the first conveyor belt. A pressing edge mechanism is set to enhance the overlap between the sanitary napkin and its side wings. A pressing and folding mechanism is set above the tail end of the first conveyor belt to fold the sanitary napkin once. The sanitary napkin after the first fold moves down along the tail end of the first conveyor belt and is folded a second time by the pressing and folding mechanism set below the tail end of the first conveyor belt. Finally, the folded sanitary napkin is automatically output along the third conveyor belt. The entire process can be automatically processed without manual assistance, which improves the production efficiency of sanitary napkins.

[0023] (2) The automatic folding equipment for finished sanitary napkins allows the sanitary napkin to be briefly pressed by the pressure plate in the pressure mechanism before it enters the folding piece and is folded. At this time, the two side wings of the sanitary napkin are blown upward by the air blown by the blower mechanism, so that the main body of the sanitary napkin is close to the first conveyor belt and the two side wings are separated from the first conveyor belt, so that the side wings of the sanitary napkin can smoothly enter the baffle along the inclined plate to complete the folding, and avoid the sanitary napkin from being misaligned and piled up.

[0024] (3) The automatic folding equipment for sanitary napkins sets up a pressing mechanism after the side wings of the sanitary napkin are folded and before the whole folding. This allows the sanitary napkin with folded side wings to be continuously pressed and shaped by the pressing belt in the pressing mechanism during the conveying process, which helps to ensure the quality of the sanitary napkin when it is folded as a whole.

[0025] (4) The automatic folding equipment for finished sanitary napkins, by setting up vertical folding mechanism and horizontal folding mechanism respectively, enables the sanitary napkin to be folded vertically once and horizontally twice, so that the overall conveying direction of the sanitary napkin is horizontal, vertical and then horizontal, so that the conveying direction of the sanitary napkin before and after the processing production line is consistent, and provides space convenience for the use of the packaging equipment of the subsequent production line. Attached Figure Description

[0026] Figure 1 This is a perspective view of the overall external structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure below the main frame of the present invention;

[0028] Figure 3 This is a schematic diagram of the blower mechanism on the main frame of the present invention;

[0029] Figure 4 This is a front view of the present invention;

[0030] Figure 5 This is a schematic diagram of the pressure mechanism structure on the main frame of the present invention;

[0031] Figure 6 This is a schematic diagram of the folded edge component structure located on the main frame of the present invention;

[0032] Figure 7 This is a schematic diagram of the pressing mechanism on the main frame of the present invention;

[0033] Figure 8 This is a schematic diagram of the internal structure of the main frame and auxiliary frame of the present invention;

[0034] Figure 9 This is a schematic diagram of the second and third conveyor belts located on the auxiliary frame according to the present invention.

[0035] In the diagram: 1. Main frame; 11. First conveyor belt; 111. Sanitary napkin; 112. Groove; 12. Auxiliary frame; 121. Second conveyor belt; 2. Pressure mechanism; 21. Mounting frame one; 22. Toothed ring plate; 23. Pressure plate; 231. Pulley; 24. Half gear; 25. First motor; 3. Blower mechanism; 31. Mounting frame two; 32. Fan; 33. Air duct; 34. Exhaust duct; 341. Exhaust hole; 4. Folding piece; 41. Inclined plate; 42. Baffle. ; 43. Edge guard; 5. Edge pressing mechanism; 51. Mounting frame three; 52. First roller shaft; 53. Second roller shaft; 54. Third roller shaft; 55. Pressing belt; 56. Second motor; 6. Stacking mechanism; 61. Mounting frame four; 62. Cylinder; 63. Fixing plate; 64. Lifting rod; 65. Stacking plate; 7. Roller shaft group; 71. First pulley; 8. Third conveyor belt; 81. Second pulley; 82. Horizontal belt; 83. First gear; 84. Second gear. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-9 This invention provides a technical solution: an automatic folding device for finished sanitary napkins, including a main frame 1 and an auxiliary frame 12 fixedly installed as one unit. A first conveyor belt 11 is provided on the main frame 1, and a sanitary napkin 111 is placed at the top of the first conveyor belt 11. A gap is provided between the main frame 1 and the auxiliary frame 12. From left to right, the main frame 1 is provided with a pressure mechanism 2 for pressing the sanitary napkin 111, a folding edge piece 4 for folding the side wings of the sanitary napkin 111, a pressing edge mechanism 5 for enhancing the overlap between the sanitary napkin 111 and its side wings, and two folding mechanisms 6 for folding the sanitary napkin 111 as a whole. The pressure mechanism 2, the folding edge piece 4, the pressing edge mechanism 5 and the folding mechanism 6 located above the first conveyor belt 11 are close together front to back, and the two folding mechanisms 6 are arranged vertically between each other.

[0038] Furthermore, such as Figure 4 and Figure 5As shown, the first conveyor belt 11 has several slots 112. The pressure mechanism 2 includes a mounting frame 21 fixedly mounted on the main frame 1. A toothed ring plate 22 is movably inserted through the top of the mounting frame 21. A pressure plate 23 is vertically fixedly connected to the bottom of the toothed ring plate 22. Several pulleys 231 are provided at the bottom of the pressure plate 23. The toothed ring plate 22 is a detachable structure. A half gear 24 is meshed in the rack of the toothed ring plate 22. A first motor 25 is mounted on the rear side of the mounting frame 21 to drive the half gear 24 to rotate. The first motor 25 drives the half gear 24 to rotate in the same direction. The continuous rotation of the direction, according to the structure of the half gear 24 and its positional relationship with the toothed ring plate 22, can drive the toothed ring plate 22 to move up and down in a circular motion during the continuous rotation of the half gear 24. The top of the half gear 24 is an arc-shaped structure and the arc-shaped part and the part below it can be disassembled and reassembled, which makes it easy to install and remove it from the mounting bracket 21. Several pulleys 231 are provided at the bottom of the pressure plate 23 to avoid inhibiting the horizontal conveying of the sanitary napkin 111. When the pressure plate 23 presses the sanitary napkin 111, the blower mechanism 3 located directly below the pressure plate 23 blows the side wings of the sanitary napkin 111 upward.

[0039] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the folding piece 4 includes an inclined plate 41 fixedly connected to the top of the main frame 1. The left end of the inclined plate 41 corresponds vertically to the right end of the pressure plate 23. A baffle 42 is fixedly connected to the top of the inclined plate 41. A baffle 43 is also provided inside the baffle 42. When the two side wings of the sanitary napkin 111 are blown upward by the air blown by the blower mechanism 3, the main body of the sanitary napkin 111 is pressed against the first conveyor belt 11 and the two side wings are separated from the first conveyor belt 11, so that the side wings of the sanitary napkin 111 can smoothly enter the baffle 42 along the inclined plate 41 to complete the folding, and avoid the sanitary napkin from being misaligned and piled up.

[0040] Furthermore, such as Figure 1 and Figure 3 As shown, the front surface of the main frame 1 is also provided with a blower mechanism 3 located directly in front of the pressure mechanism 2, which is used to blow the side wings of the sanitary napkin 111 upward. The blower mechanism 3 includes a mounting bracket 31 installed on the front side of the main frame 1. A fan 32 is installed on the mounting bracket 31. The air outlet of the fan 32 is fixedly connected to an air duct 33. The other end of the air duct 33 is fixedly connected to an air intake pipe 34. The air intake pipe 34 is located in the interlayer of the first conveyor belt 11, and several exhaust holes 341 are opened on the upper surface of the air intake pipe 34. Since the air intake pipe 34 is located directly below the pressure plate 23, only the sanitary napkin 111 located below the pressure plate 23 will be blown upward by the wind, and will not affect the sanitary napkin 111 in other positions.

[0041] Furthermore, such as Figure 4 and Figure 7As shown, the pressing mechanism 5 includes a mounting frame 3 51 installed on the rear side of the main frame 1. The mounting frame 3 51 is respectively equipped with a first roller 52 located in the middle, a second roller 53 located to the lower left of the first roller 52, and a third roller 54 located to the lower right of the first roller 52. The second roller 53 and the third roller 54 are at the same height. Three pressing strips 55 are sleeved on the first roller 52, the second roller 53, and the third roller 54. A second motor 56 is installed on the rear side of the mounting frame 3 51 to drive the first roller 52 to rotate. The second motor 56 drives the first roller 52 to rotate. The roller 52 then drives the second roller 53 and the third roller 54 to rotate via the pressure belt 55. The first roller 52, the second roller 53 and the third roller 54 are arranged in a triangle. The second roller 53 and the third roller 54 are fixed in position to ensure that they are close to the folding edge 4 and the pressing mechanism 6, while the position of the first roller 52 is adjustable to change the tension of the pressure belt 55. When the sanitary napkin 111 with the side wings folded is output to the right along the folding edge 4, it is continuously pressed and shaped by the pressure belt 55 in the pressing mechanism 5, which helps to ensure the quality of the sanitary napkin when it is folded as a whole.

[0042] Furthermore, such as Figure 2 and Figure 7 As shown, the two folding mechanisms 6 have the same structure and are located at the top and bottom of the first conveyor belt 11, respectively. The folding mechanism 6 located at the top of the first conveyor belt 11 is perpendicular to it and is used to fold the sanitary napkin 111 once. The folding mechanism 6 located at the bottom of the first conveyor belt 11 is parallel to it and is used to fold the sanitary napkin 111 twice. The folding mechanism 6 includes a mounting frame 4 61 mounted on the main frame 1. A cylinder 62 is mounted on the top of the mounting frame 4 61. A fixing plate 63 is fixedly connected to the front side of the mounting frame 4 61. The output axis of the cylinder 62 is downward and movably connected to a lifting rod 64. The lifting rod 64 movably passes through the fixing plate 63 and is fixedly connected to a folding plate 65 at its bottom end. The folding plate 65 is located in the gap between the main frame 1 and the auxiliary frame 12. When the sanitary napkin 111 is conveyed to the right and simultaneously crosses the first conveyor belt 11 and the second conveyor belt 121, the cylinder 62 is activated and drives the lifting rod 64 and the folding plate 65 to move downward once, so that the folding plate 65 presses down the sanitary napkin 111 at this point and folds it once.

[0043] Furthermore, such as Figure 8 and Figure 9As shown, the main frame 1 is also equipped with a roller group 7 for conveying the sanitary napkin 111 downwards, and the auxiliary frame 12 is equipped with a third conveyor belt 8 for outputting the folded sanitary napkin 111 horizontally outwards. The roller group 7 consists of two identical rollers, and each of the two rollers is equipped with a first pulley 71 at one end. A vertical belt is sleeved on the two first pulleys 71 to ensure that the two rollers rotate at the same speed and in the same direction. Only one roller needs to be driven externally. The pressing mechanism 6 located below the first conveyor belt 11 has a pressing plate 65 between the two rollers. When the sanitary napkin 111 falls between the roller group 7 after this folding, the cylinder 62 in the horizontal pressing mechanism 6 is activated and drives the lifting rod 64 and the pressing plate 65 to move to the right once, so that the pressing plate 65 presses the sanitary napkin 111 to the right for a second fold.

[0044] The auxiliary frame 12 is equipped with a second conveyor belt 121 at the same height as the top surface of the first conveyor belt 11. The second conveyor belt 121 is used to receive a portion of the sanitary napkins 111 conveyed to the right along the first conveyor belt 11. Each of the two conveyor wheels of the third conveyor belt 8 has a second pulley 81 at one end, and a horizontal belt 82 is fitted onto the two second pulleys 81. One of the conveyor wheels of the third conveyor belt 8 also has a first gear 83 at one end. The top of the first gear 83 meshes with a second gear 84 of the same type. A guide roller located coaxially above the third conveyor belt 8 is mounted on the second gear 84. Below 121, the guide roller and the two rollers of the roller group 7 are the same, and the guide roller and the upper roller of the roller group 7 are corresponding left and right. The first gear 83 and the second gear 84 are the same size and mesh with each other, so that the conveying wheel on the first gear 83 and the guide roller on the second gear 84 rotate at the same speed but in opposite directions. When the sanitary napkin 111 is pressed to the right and folded twice, it is pushed into the middle position of the guide roller on the third conveyor belt 8 and the second gear 84. Finally, it resumes horizontal conveying to the right along the top surface of the third conveyor belt 8, so that the conveying direction of the sanitary napkin processing line before and after is consistent, and provides space convenience for the use of the packaging equipment of the subsequent production line.

[0045] Working principle: The sanitary napkin 111 is conveyed horizontally to the right along the first conveyor belt 11. When the sanitary napkin 111 is conveyed to the area below the pressure plate 23, the first motor 25 is started to drive the half gear 24 to rotate continuously in the same direction. During the continuous rotation of the half gear 24, the toothed ring plate 22 can be driven to move up and down in a cyclical manner. When the pressure plate 23 presses down on the sanitary napkin 111, the blower mechanism 3 located directly below the pressure plate 23 blows the side wings of the sanitary napkin 111 upward, so that the main body of the sanitary napkin 111 is in close contact with the first conveyor belt 11 and the side wings are separated from the first conveyor belt 11. This allows the side wings of the sanitary napkin 111 to smoothly enter the baffle 42 along the inclined plate 41 and complete the folding. When the sanitary napkin 111 with the side wings folded is output to the right along the folding edge 4, it is continuously pressed by the pressure belt 55 in the pressing mechanism 5. The shaping process helps ensure the quality of the sanitary napkin during overall folding. When the sanitary napkin 111 is conveyed to the right and simultaneously crosses the first conveyor belt 11 and the second conveyor belt 121, the cylinder 62 is activated and drives the lifting rod 64 and the pressing plate 65 to move downward once, so that the pressing plate 65 presses down and folds the sanitary napkin 111 at this point. When the sanitary napkin 111 falls between the roller group 7 after being folded in this way, the cylinder 62 in the horizontal pressing mechanism 6 is activated and drives the lifting rod 64 and the pressing plate 65 to move to the right once, so that the pressing plate 65 presses down and folds the sanitary napkin 111 at this point a second time. After the sanitary napkin 111 is pressed down and folded a second time, it is pushed into the middle position of the guide roller on the third conveyor belt 8 and the second gear 84, and finally resumes horizontal conveying to the right along the top surface of the third conveyor belt 8.

[0046] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic folding device for finished sanitary napkins, comprising a main frame (1) and an auxiliary frame (12) fixedly installed as one unit, a first conveyor belt (11) is provided on the main frame (1), a sanitary napkin (111) is placed on the top of the first conveyor belt (11), and a gap is provided between the main frame (1) and the auxiliary frame (12), characterized in that: The main frame (1) is provided with a pressure mechanism (2) for pressing the sanitary napkin (111), a folding piece (4) for folding the side wings of the sanitary napkin (111), a pressing mechanism (5) for enhancing the overlap between the sanitary napkin (111) and its side wings, and two pressing mechanisms (6) for folding the sanitary napkin (111) as a whole, from left to right. The two folding mechanisms (6) have the same structure and are located at the top and bottom of the first conveyor belt (11) respectively. The folding mechanism (6) located at the top of the first conveyor belt (11) is perpendicular to it and is used to fold the sanitary napkin (111) once. The folding mechanism (6) located at the bottom of the first conveyor belt (11) is distributed parallel to it and is used to fold the sanitary napkin (111) twice. The front surface of the main frame (1) is also provided with a blower mechanism (3) located directly in front of the pressure mechanism (2) for blowing the side wings of the sanitary napkin (111) upward; The main frame (1) is also equipped with a roller group (7) for conveying the sanitary napkin (111) downwards, and the auxiliary frame (12) is equipped with a third conveyor belt (8) for outputting the folded sanitary napkin (111) horizontally outwards.

2. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The first conveyor belt (11) has several holes and slots (112). The pressure mechanism (2) includes a mounting frame (21) fixedly installed on the main frame (1). A toothed ring plate (22) is movably passed through the top of the mounting frame (21). A pressure plate (23) is vertically fixedly connected to the bottom of the toothed ring plate (22). Several pulleys (231) are provided at the bottom of the pressure plate (23).

3. The automatic folding device for finished sanitary napkins according to claim 2, characterized in that: The toothed ring plate (22) is a detachable structure. A half gear (24) is meshed in the rack of the toothed ring plate (22). A first motor (25) that drives the half gear (24) to rotate is installed on the rear side of the mounting bracket (21).

4. The automatic folding device for finished sanitary napkins according to claim 2, characterized in that: The folding piece (4) includes an inclined plate (41) fixedly connected to the top of the main frame (1). The left end of the inclined plate (41) corresponds vertically to the right end of the pressure plate (23). A cover (42) is fixedly connected to the top of the inclined plate (41). A baffle (43) is also provided inside the cover (42).

5. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The blower mechanism (3) includes a mounting bracket (31) installed on the front side of the main frame (1). A blower (32) is installed on the mounting bracket (31). The air outlet of the blower (32) is fixedly connected to an air duct (33). The other end of the air duct (33) is fixedly connected to an air duct (34). The air duct (34) is located in the interlayer of the first conveyor belt (11), and several exhaust holes (341) are opened on the upper surface of the air duct (34).

6. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The pressing mechanism (5) includes a mounting frame three (51) installed on the rear side of the main frame (1). The mounting frame three (51) is respectively provided with a first roller shaft (52) located in the middle, a second roller shaft (53) located to the lower left of the first roller shaft (52) and a third roller shaft (54) located to the lower right of the first roller shaft (52). The second roller shaft (53) and the third roller shaft (54) are at the same height. Three pressing strips (55) are sleeved on the first roller shaft (52), the second roller shaft (53) and the third roller shaft (54). A second motor (56) that drives the first roller shaft (52) to rotate is installed on the rear side of the mounting frame three (51).

7. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The stacking mechanism (6) includes a mounting frame four (61) mounted on the main frame (1). A cylinder (62) is mounted on the top of the mounting frame four (61). A fixing plate (63) is fixedly connected to the front side of the mounting frame four (61). The output shaft of the cylinder (62) is downward and movably connected to a lifting rod (64). The lifting rod (64) movably passes through the fixing plate (63) and a stacking plate (65) is fixedly connected to its bottom end. The stacking plate (65) is located in the gap between the main frame (1) and the auxiliary frame (12).

8. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The roller assembly (7) consists of two identical rollers, one end of which is provided with a first pulley (71). A vertical belt is fitted onto the two first pulleys (71). The stacking plate (65) in the stacking mechanism (6) located below the first conveyor belt (11) is positioned between the two rollers.

9. The automatic folding device for finished sanitary napkins according to claim 1, characterized in that: The auxiliary frame (12) is provided with a second conveyor belt (121) at the same height as the top surface of the first conveyor belt (11). The second conveyor belt (121) is used to receive a portion of the sanitary napkins (111) conveyed to the right along the first conveyor belt (11). The two conveyor wheels of the third conveyor belt (8) are each provided with a second pulley (81), and a horizontal belt (82) is sleeved on the two second pulleys (81).

10. An automatic folding device for finished sanitary napkins according to claim 9, characterized in that: One end of one of the conveyor wheels of the third conveyor belt (8) is also provided with a first gear (83). The top of the first gear (83) is meshed with a second gear (84) that is the same as it. A guide roller located above the third conveyor belt (8) is coaxially arranged on the second gear (84). The guide roller is located below the second conveyor belt (121). The guide roller is the same as the two rollers of the roller shaft group (7), and the guide roller corresponds to the upper roller in the roller shaft group (7) on the left and right.

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