Sanitary napkin polymer absorption core body trepanning equipment

Abstract

The invention discloses a sanitary napkin polymer absorption core trepanning device, and belongs to the technical field of absorption core trepanning equipment.The sanitary napkin polymer absorption core trepanning device comprises a cutting assembly, a feeding assembly, a supporting column, a collecting mechanism and a punching mechanism, the cutting assembly comprises a mounting plate, a moving frame, a cutting knife reciprocating motion assembly and a lifting assembly, and the moving frame is slidably mounted on the mounting plate; the reciprocating motion assembly is installed on the installation plate, the cutting knife is installed on the moving frame in a sliding mode, the feeding assembly comprises a push plate, a third sliding block, a material pushing assembly and a material falling assembly, the push plate is connected with the material pushing assembly, the material pushing assembly is connected with the lifting assembly, the third sliding block is connected with the material falling assembly, and the material falling assembly is connected with the moving frame; and the punching mechanism comprises a rotating plate, a rotating rod, a lower plate, a reciprocating rotating assembly and an intermittent rotating assembly, the lower plate is fixedly installed among the multiple supporting columns, redundant parts are automatically cut before punching, positioning is facilitated, and then the machining efficiency and the machining effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of absorbent core body punching equipment, and particularly discloses a high-molecular absorbent core body punching equipment for sanitary napkins. Background Art

[0002] As a common personal hygiene product, the core function of a sanitary napkin is to effectively absorb menstrual fluid and other body fluids to provide users with comfort and security. The absorption performance of a sanitary napkin mainly depends on the material and structural design of its core absorbent core. In recent years, with the increasing market demand, the absorption performance and comfort of sanitary napkin products have gradually become the focus of consumers' attention.

[0003] Punching the high-molecular absorbent core body of a sanitary napkin is an important processing process. With the continuous progress of technology, the application of new punching equipment will promote the modern transformation of sanitary napkin production and help manufacturers meet the market demand for high-performance sanitary napkins.

[0004] The patent with the publication number CN114392054A discloses a punching device for a sanitary napkin core body. The technical solution of this patent is as follows: it includes a frame, on which a first rotating roller and a second rotating roller are installed. A plurality of hole-shaped cutting knives are fixedly installed on the outer side of the first rotating roller. An air vent communicating with the hole-shaped cutting knives is axially provided on the end face of the first rotating roller. A gas distribution plate is fixedly installed on the frame. Along the moving path of the air vent, an air suction cavity and a blowing cavity are sequentially arranged from bottom to top on the end face of the gas distribution plate. However, after punching, this patent still needs to cut the redundant part, and the redundant part is not conducive to the positioning of punching. Therefore, a high-molecular absorbent core body punching equipment for sanitary napkins is invented to address this defect. Summary of the Invention

[0005] In response to the above technical problems, the technical solution adopted by the present invention is: a high-molecular absorbent core body punching equipment for sanitary napkins, which includes support columns, a cutting assembly, a feeding assembly, a collection mechanism, and a punching mechanism. The cutting assembly includes a mounting plate, a moving frame, a cutting knife, a reciprocating motion assembly, and a lifting assembly. The moving frame is slidably installed on the mounting plate, and the moving frame is connected to the reciprocating motion assembly. The reciprocating motion assembly is installed on the mounting plate. The cutting knife is slidably installed on the moving frame, and the cutting knife is connected to the lifting assembly. The lifting assembly is connected to the reciprocating motion assembly. The feeding assembly includes a push plate, a third slider, a feeding component, and a blanking component. The push plate is connected to the feeding component, the feeding component is connected to the lifting assembly, the third slider is connected to the blanking component, and the blanking component is connected to the moving frame.

[0006] There are multiple support columns. Four support columns are symmetrically and fixedly installed on the lower side of the mounting plate. The collection mechanism is installed below the mounting plate and below the blanking assembly. The punching mechanism includes a rotating plate, a rotating rod, a lower plate, a reciprocating rotation assembly, and an intermittent rotation assembly. The lower plate is fixedly installed between multiple support columns. The rotating plate is rotatably installed between two support columns. The rotating plate is located above the lower plate. The rotating plate is connected to the reciprocating rotation assembly. The rotating rod is rotatably installed on the lower plate. The rotating rod is connected to the intermittent rotation assembly. The intermittent rotation assembly is installed on the lower plate.

[0007] Further, the reciprocating motion assembly includes a first motor. The first motor is fixedly installed on the mounting plate. A first connecting rod is fixedly installed at the output end of the first motor. A third connecting rod is rotatably installed at the end of the first connecting rod away from the first motor. A first connecting shaft is rotatably installed at the end of the third connecting rod away from the first connecting rod. The first connecting shaft is fixedly installed on the side of the moving frame.

[0008] Further, a sliding groove is provided on the side of the moving frame. The lifting assembly includes a first slider. The first slider is slidably installed on the inner wall of the sliding groove. A fixed frame is fixedly installed on the mounting plate. An inclined groove is provided through the fixed frame. A sliding shaft is slidably installed on the inner wall of the inclined groove. The sliding shaft is fixedly installed on the side of the first slider. A connecting rod is fixedly installed at the end of the first slider away from the sliding shaft. There are two cutting knives. The two cutting knives are symmetrically and fixedly installed on the lower side of the connecting rod. When the sliding shaft is at the lowest point of the inclined groove, the cutting edge part of the cutting knife contacts the mounting plate.

[0009] Further, the pushing assembly includes a fixed rod. The fixed rod is fixedly installed on the mounting plate. A vertical groove is provided on the side of the fixed rod. A second slider is slidably installed on the inner wall of the vertical groove. A fifth connecting rod is rotatably installed on the outer surface of the second slider. The end of the fifth connecting rod away from the second slider is rotatably connected to the sliding shaft.

[0010] Further, the pushing assembly further includes a fixing plate. The fixing plate is fixedly installed on the mounting plate. A moving rod is slidably installed on the side of the fixing plate in the horizontal direction. A driving shaft is fixedly installed on the outer surface of the moving rod. A fourth connecting rod is rotatably installed on the outer surface of the driving shaft. The end of the fourth connecting rod away from the driving shaft is rotatably connected to the second slider. The end of the moving rod away from the driving shaft is fixedly connected to the pushing plate. The pushing plate is slidably installed on the mounting plate.

[0011] Further, the blanking assembly includes a second connecting shaft. The second connecting shaft is fixedly installed on the side of the moving frame. A sixth connecting rod is rotatably installed on the outer surface of the second connecting shaft. The end of the sixth connecting rod away from the second connecting shaft is rotatably connected to the second connecting shaft. A limiting rod is slidably installed on the side of the second connecting shaft. The limiting rod is fixedly installed on the mounting plate. A first blanking hole and two second blanking holes are further provided on the mounting plate. The first blanking hole is located between the two cutting knives. The two second blanking holes are symmetrically arranged on both sides of the first blanking hole.

[0012] Further, the collection mechanism includes two blanking plates and a blanking cylinder. The two blanking plates are respectively fixedly installed below a second blanking hole, and the blanking cylinder is fixedly installed below the first blanking hole. A collection box is fixedly installed below each blanking plate, and each collection box is fixedly installed between two support columns.

[0013] Further, the reciprocating rotation assembly includes a seventh connecting rod. The seventh connecting rod is rotatably installed on the outer surface of the second slider. A third connecting shaft is rotatably installed at one end of the seventh connecting rod away from the second slider. An eighth connecting rod is fixedly installed on the side surface of the third connecting shaft. An intermediate shaft is rotatably installed on the side surface of the eighth connecting rod, and the intermediate shaft is fixedly installed on the support column. A fourth connecting shaft is fixedly installed at one end of the eighth connecting rod away from the third connecting shaft. A ninth connecting rod is rotatably installed on the outer surface of the fourth connecting shaft. A fifth connecting shaft is rotatably installed at one end of the ninth connecting rod away from the fourth connecting shaft. A tenth connecting rod is rotatably installed on the side surface of the fifth connecting shaft. A transmission shaft is rotatably installed at one end of the tenth connecting rod away from the fifth connecting shaft. An installation hole is provided on the side surface of the support column, and the transmission shaft is rotatably installed on the inner wall of the installation hole. The transmission shaft is located above the lower plate, and a rotating plate is fixedly installed on the outer surface of the transmission shaft. A plurality of punching tubes are fixedly installed on the side surface of the rotating plate facing the lower plate in an equidistant array. When the upper surface of the rotating plate is parallel to the upper surface of the lower plate, the lower end surfaces of the punching tubes coincide with the upper end surface of the lower plate.

[0014] Further, the intermittent rotation assembly includes a vertical shaft. The vertical shaft is rotatably installed on the lower plate, and a rotating rod is fixedly installed on the outer surface of the vertical shaft. A connecting plate is rotatably installed on the vertical shaft, and the connecting plate is fixedly installed on a support column. A torsion spring is wound around the outer surface of the vertical shaft. One end of the torsion spring is fixedly installed on the connecting plate, and the other end of the torsion spring is fixedly installed on the rotating rod.

[0015] Further, a first gear is fixedly installed on the outer surface of the vertical shaft. The first gear is rotatably installed on the lower side of the lower plate. A motor bracket is fixedly installed on the lower side of the lower plate, and a second motor is fixedly installed on the motor bracket. A second gear is fixedly installed at the output end of the second motor. The tooth profile of the second gear is incomplete, and the second gear meshes with the first gear intermittently.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: (1) The present invention realizes automatic cutting of the redundant part before punching, thereby facilitating positioning and improving the processing efficiency and processing effect; (2) The present invention realizes the synchronization of the punching and cutting processes, thereby improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the cutting assembly of the present invention.

[0019] Figure 3 is Figure 2 The partial enlarged structural schematic diagram of part A in

[0020] Figure 4 is Figure 2 The partial enlarged structural schematic diagram of part B in

[0021] Figure 5 The structural schematic diagram of the feeding component of the present invention.

[0022] Figure 6 is Figure 5 The partial enlarged structural schematic diagram of part C in

[0023] Figure 7 The schematic diagram of the positional relationship of the moving frame of the present invention.

[0024] Figure 8 is Figure 7 The partial enlarged structural schematic diagram of part D in

[0025] Figure 9 is Figure 7 The partial enlarged structural schematic diagram of part E in

[0026] Figure 10 The structural schematic diagram of the collection mechanism of the present invention.

[0027] Figure 11 is Figure 10 The partial enlarged structural schematic diagram of part F in

[0028] Figure 12 The structural schematic diagram of the punching mechanism of the present invention.

[0029] Figure 13 is Figure 12 The partial enlarged structural schematic diagram of part G in

[0030] Figure 14 is Figure 12 The partial enlarged structural schematic diagram of part H in

[0031] Figure 15 The schematic diagram of the positional relationship between the first gear and the second gear of the present invention.

[0032] Figure 16 is Figure 15 The partial enlarged structural schematic diagram of part I in

[0033] Figure 17 The structural schematic diagram of the rotating plate of the present invention.

[0034] Figure 18 The schematic diagram of the positional relationship between the rotating rod and the lower plate of the present invention.

[0035] Reference Numerals: 1 - cutting assembly; 2 - feeding assembly; 3 - support column; 4 - collection mechanism; 5 - punching mechanism; 101 - first motor; 102 - first connecting rod; 103 - mounting plate; 104 - fixing bracket; 105 - inclined groove; 106 - second connecting rod; 107 - mounting hole; 108 - moving frame; 109 - sliding groove; 110 - first slider; 111 - sliding shaft; 112 - connecting rod; 113 - cutting tool; 114 - third connecting rod; 115 - first connecting shaft; 201 - fixing plate; 202 - moving rod; 203 - driving shaft; 204 - fourth connecting rod; 205 - fixing rod; 206 - fifth connecting rod; 207 - limiting rod; 208 - vertical groove; 209 - second slider; 210 - pushing plate; 211 - first blanking hole; 212 - second blanking hole; 213 - third slider; 214 - sixth connecting rod; 215 - second connecting shaft; 401 - collection box; 402 - blanking plate; 403 - blanking cylinder; 501 - seventh connecting rod; 502 - third connecting shaft; 503 - intermediate shaft; 504 - eighth connecting rod; 505 - fourth connecting shaft; 506 - ninth connecting rod; 507 - fifth connecting shaft; 508 - tenth connecting rod; 509 - transmission shaft; 510 - rotating plate; 511 - rotating rod; 512 - vertical shaft; 513 - torsion spring; 514 - lower plate; 515 - first gear; 516 - second gear; 517 - second motor; 518 - motor bracket; 519 - punching pipe; 520 - connecting plate. Detailed Embodiment

[0036] The technical solution of the present invention will be further described below in conjunction with and by way of specific embodiments.

[0037] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0038] As shown in the attached Figure 1 ~ attached Figure 15As shown in the figure, the cutting assembly 1 includes a first motor 101, a mounting plate 103, a moving frame 108, a cutting knife 113 and a first slider 110. A second connecting rod 106 is provided on the mounting plate 103. The moving frame 108 is slidably mounted on the inner wall of the second connecting rod 106. The cutting knife 113 is slidably mounted on the moving frame 108. The first motor 101 is fixedly mounted on the mounting plate 103. A first connecting rod 102 is fixedly mounted at the output end of the first motor 101. A third connecting rod 114 is rotatably mounted at the end of the first connecting rod 102 away from the first motor 101. A first connecting shaft 115 is rotatably mounted at the end of the third connecting rod 114 away from the first connecting rod 102. The first connecting shaft 115 is fixedly mounted on the side of the moving frame 108. A sliding groove 109 is provided on the side of the moving frame 108. The first slider 110 is slidably mounted on the inner wall of the sliding groove 109. A fixing frame 104 is fixedly mounted on the mounting plate 103. An inclined surface groove 105 is provided through the fixing frame 104. A sliding shaft 111 is slidably mounted on the inner wall of the inclined surface groove 105. The sliding shaft 111 is fixedly mounted on the side of the first slider 110. A connecting rod 112 is fixedly mounted at the end of the first slider 110 away from the sliding shaft 111. There are two cutting knives 113, and the two cutting knives 113 are symmetrically fixedly mounted on the lower side of the connecting rod 112. When the sliding shaft 111 is at the lowest point of the inclined surface groove 105, the cutting edge part of the cutting knife 113 contacts the mounting plate 103. The width of the fixing frame 104 is smaller than the distance between the two cutting knives 113. Before working, the absorbent core to be punched is placed between the push plate 210 and the first blanking hole 211. Then the first motor 101 is started. The first motor 101 drives the third connecting rod 114 to move through the first connecting rod 102. The third connecting rod 114 drives the moving frame 108 to slide along the inner wall of the second connecting rod 106, thereby driving the sliding shaft 111 to slide along the inner wall of the inclined surface groove 105, thus driving the connecting rod 112 to rise. The connecting rod 112 drives the cutting knife 113 to rise.

[0039] As shown in the attached Figure 2 ~ attached Figure 16As shown in the figure, the feeding assembly 2 includes a fixing plate 201, a fixing rod 205, a pushing plate 210, a third slider 213 and a second connecting shaft 215. The fixing rod 205 is fixedly installed on the mounting plate 103. A vertical groove 208 is provided on the side of the fixing rod 205. A second slider 209 is slidably installed on the inner wall of the vertical groove 208. A fifth connecting rod 206 is rotatably installed on the outer surface of the second slider 209. One end of the fifth connecting rod 206 away from the second slider 209 is rotatably connected to the sliding shaft 111. The fixing plate 201 is fixedly installed on the mounting plate 103. A moving rod 202 is slidably installed on the side of the fixing plate 201 and the sliding direction is horizontal. A driving shaft 203 is fixedly installed on the outer surface of the moving rod 202. A fourth connecting rod 204 is rotatably installed on the outer surface of the driving shaft 203. One end of the fourth connecting rod 204 away from the driving shaft 203 is rotatably connected to the second slider 209. One end of the moving rod 202 away from the driving shaft 203 is fixedly connected to the pushing plate 210. The pushing plate 210 is slidably installed on the mounting plate 103. The second connecting shaft 215 is fixedly installed on the side of the moving frame 108. A sixth connecting rod 214 is rotatably installed on the outer surface of the second connecting shaft 215. One end of the sixth connecting rod 214 away from the second connecting shaft 215 is rotatably connected to the second connecting shaft 215. A limiting rod 207 is slidably installed on the side of the second connecting shaft 215. The limiting rod 207 is fixedly installed on the mounting plate 103. A first blanking hole 211 and two second blanking holes 212 are further provided on the mounting plate 103. The first blanking hole 211 is located between the two cutting knives 113. The two second blanking holes 212 are symmetrically arranged on both sides of the first blanking hole 211. The collecting mechanism 4 includes two blanking plates 402 and a blanking cylinder 403. The two blanking plates 402 are respectively fixedly installed below one second blanking hole 212. The blanking cylinder 403 is fixedly installed below the first blanking hole 211. A collecting box 401 is fixedly installed below each blanking plate 402. Each collecting box 401 is fixedly installed between the two support columns 3. The sliding shaft 111 drives the second slider 209 to rise along the vertical groove 208 through the fifth connecting rod 206. The second slider 209 drives the driving shaft 203 to move through the fourth connecting rod 204. The driving shaft 203 pushes the pushing plate 210 to move through the moving rod 202. The absorbent core body to be punched is pushed towards the first blanking hole 211 by the pushing plate 210. When the connecting rod 112 rises to the highest point, under the action of the third connecting rod 114, the sliding shaft 111 slides down along the inner wall of the inclined groove 105, thereby driving the cutting knife 113 to descend. At the same time, the pushing plate 210 slides in the reverse direction away from the first blanking hole 211. When the connecting rod 112 descends to the lowest point, the excess part of the absorbent core body to be punched is cut by the cutting knife 113. After that, the cut absorbent core body falls into the blanking cylinder 403 through the first blanking hole 211. The cut waste is pushed into the second blanking hole 212 through the third slider 213 and falls into the collecting box 401 through the blanking plate 402.

[0040] As attached Figure 5 ~attached Figure 18As shown, the punching mechanism 5 includes a seventh connecting rod 501, a rotating plate 510, a rotating rod 511, a vertical shaft 512 and a lower plate 514. The lower plate 514 is fixedly installed between multiple support columns 3. The rotating plate 510 is rotatably installed between two support columns 3. The rotating plate 510 is located above the lower plate 514. The rotating rod 511 is rotatably installed on the lower plate 514. The seventh connecting rod 501 is rotatably installed on the outer surface of the second slider 209. One end of the seventh connecting rod 501 away from the second slider 209 is rotatably installed with a third connecting shaft 502. A side surface of the third connecting shaft 502 is fixedly installed with an eighth connecting rod 504. A side surface of the eighth connecting rod 504 is rotatably installed with an intermediate shaft 503. The intermediate shaft 503 is fixedly installed on the support column 3. One end of the eighth connecting rod 504 away from the third connecting shaft 502 is fixedly installed with a fourth connecting shaft 505. An outer surface of the fourth connecting shaft 505 is rotatably installed with a ninth connecting rod 506. One end of the ninth connecting rod 506 away from the fourth connecting shaft 505 is rotatably installed with a fifth connecting shaft 507. A side surface of the fifth connecting shaft 507 is rotatably installed with a tenth connecting rod 508. One end of the tenth connecting rod 508 away from the fifth connecting shaft 507 is rotatably installed with a transmission shaft 509. An installation hole 107 is provided on a side surface of the support column 3. The transmission shaft 509 is rotatably installed on an inner wall of the installation hole 107. The transmission shaft 509 is located above the lower plate 514. The rotating plate 510 is fixedly installed on an outer surface of the transmission shaft 509. A plurality of punching tubes 519 are fixedly installed on a side surface of the rotating plate 510 facing the lower plate 514 in an equidistant array. When an upper surface of the rotating plate 510 is parallel to an upper surface of the lower plate 514, a lower end surface of the punching tube 519 coincides with an upper end surface of the lower plate 514;The vertical shaft 512 is rotatably installed on the lower plate 514. The rotating rod 511 is fixedly installed on the outer surface of the vertical shaft 512. A connecting plate 520 is rotatably installed on the vertical shaft 512. The connecting plate 520 is fixedly installed on a support column 3. A torsion spring 513 is wound around the outer surface of the vertical shaft 512. One end of the torsion spring 513 is fixedly installed on the connecting plate 520, and the other end of the torsion spring 513 is fixedly installed on the rotating rod 511. A first gear 515 is fixedly installed on the outer surface of the vertical shaft 512. The first gear 515 is rotatably installed on the lower side of the lower plate 514. A motor bracket 518 is fixedly installed on the lower side of the lower plate 514. A second motor 517 is fixedly installed on the motor bracket 518. The output end of the second motor 517 is fixedly installed with a second gear 516. The tooth profile of the second gear 516 is incomplete. The second gear 516 meshes with the first gear 515 intermittently. The absorbent core in the blanking cylinder 403 falls on the lower plate 514. When the third slider 213 rises, the second slider 209 drives the eighth connecting rod 504 to rotate clockwise around the intermediate shaft 503 through the seventh connecting rod 501. The eighth connecting rod 504 drives the ninth connecting rod 506 to move through the fourth connecting shaft 505. The ninth connecting rod 506 drives the tenth connecting rod 508 to move through the fifth connecting shaft 507. The tenth connecting rod 508 drives the rotating plate 510 to rotate clockwise through the transmission shaft 509, and then punches the absorbent core through the punching pipe 519. When the third slider 213 rises, the rotating plate 510 is lifted. At this time, the second motor 517 is started. The second motor 517 drives the first gear 515 to rotate through the second gear 516. The first gear 515 drives the rotating rod 511 to rotate through the vertical shaft 512, so as to push the absorbent core after punching on the lower plate 514 off the lower plate 514. When the second gear 516 disengages from the first gear 515, the rotating rod 511 returns to its original position under the action of the torsion spring 513.;

[0041] The working principle of the present invention is as follows.

[0042] (1) Before working, place the absorbent core to be punched between the push plate 210 and the first blanking hole 211. Then, the first motor 101 is started. The first motor 101 drives the third connecting rod 114 to move through the first connecting rod 102. The third connecting rod 114 drives the moving frame 108 to slide along the inner wall of the second connecting rod 106, and then drives the sliding shaft 111 to slide along the inner wall of the inclined groove 105, thereby driving the connecting rod 112 to rise. The connecting rod 112 drives the cutting knife 113 to rise. At the same time, the sliding shaft 111 drives the second slider 209 to rise along the vertical groove 208 through the fifth connecting rod 206. The second slider 209 drives the driving shaft 203 to move through the fourth connecting rod 204. The driving shaft 203 pushes the push plate 210 to move through the moving rod 202, and pushes the absorbent core to be punched towards the first blanking hole 211 through the push plate 210.

[0043] (2) When the connecting rod 112 rises to the highest point, under the action of the third connecting rod 114, the sliding shaft 111 slides downward along the inner wall of the inclined groove 105, thereby driving the cutting knife 113 to descend. At the same time, the push plate 210 slides in the reverse direction away from the first material discharge hole 211. When the connecting rod 112 descends to the lowest point, the cutting knife 113 cuts the redundant part of the absorbent core body being punched. Then, the cut absorbent core body falls into the material discharge cylinder 403 through the first material discharge hole 211, and the cut waste is pushed into the second material discharge hole 212 by the third slider 213 and falls into the collection box 401 through the material discharge plate 402.

[0044] (3) The absorbent core body in the material discharge cylinder 403 falls on the lower plate 514. When the third slider 213 rises, the second slider 209 drives the eighth connecting rod 504 to rotate clockwise around the intermediate shaft 503 through the seventh connecting rod 501. The eighth connecting rod 504 drives the ninth connecting rod 506 to move through the fourth connecting shaft 505. The ninth connecting rod 506 drives the tenth connecting rod 508 to move through the fifth connecting shaft 507. The tenth connecting rod 508 drives the rotating plate 510 to rotate clockwise through the transmission shaft 509, thereby punching the absorbent core body through the punching pipe 519. When the third slider 213 rises, the rotating plate 510 lifts. At this time, the second motor 517 is started. The second motor 517 drives the first gear 515 to rotate through the second gear 516. The first gear 515 drives the rotating rod 511 to rotate through the vertical shaft 512, so as to push the absorbent core body after punching on the lower plate 514 off the lower plate 514. When the second gear 516 disengages from the first gear 515, the rotating rod 511 returns to its original position under the action of the torsion spring 513.

[0045] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A device for opening holes in a polymer absorbent core of a sanitary napkin, comprising a support column (3), characterized in that: The sanitary napkin polymer absorbent core opening device also includes a cutting assembly (1), a feeding assembly (2), a collecting mechanism (4) and a punching mechanism (5). The cutting assembly (1) includes a mounting plate (103), a movable frame (108), a cutting knife (113), a reciprocating motion assembly and a lifting assembly. The movable frame (108) is slidably mounted on the mounting plate (103). The movable frame (108) is connected to the reciprocating motion assembly. The reciprocating motion assembly is mounted on the mounting plate (103). The cutting knife (113) is slidably mounted on the movable frame (108). The feeding assembly (2) includes a push plate (210), a third slider (213), a push assembly and a blanking assembly. The push plate (210) is connected to the push assembly. The push assembly is connected to the lifting assembly. A plurality of support columns (3) are provided, and four support columns (3) are symmetrically fixedly mounted on the lower side of the mounting plate (103); a collecting mechanism (4) is mounted below the mounting plate (103) and below the blanking assembly; the punching mechanism (5) comprises a rotating plate (510), a rotating rod (511), a lower plate (514), a reciprocating rotating assembly and an intermittent rotating assembly; the lower plate (514) is fixedly mounted between the plurality of support columns (3); the rotating plate (510) is rotatably mounted between two support columns (3); the rotating plate (510) is located above the lower plate (514); the rotating plate (510) is connected to the reciprocating rotating assembly; and the rotating rod (511) is rotatably mounted on the lower plate (514).

2. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 1, characterized in that: The reciprocating motion assembly comprises a first motor (101), the first motor (101) is fixedly mounted on a mounting plate (103), a first connecting rod (102) is fixedly mounted on an output end of the first motor (101), a third connecting rod (114) is rotatably mounted on an end of the first connecting rod (102) away from the first motor (101), a first connecting shaft (115) is rotatably mounted on an end of the third connecting rod (114) away from the first connecting rod (102), and the first connecting shaft (115) is fixedly mounted on a side of a moving frame (108).

3. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 2, characterized in that: A sliding groove (109) is provided on the side of the movable frame (108), and the lifting assembly comprises a first sliding block (110), the first sliding block (110) is slidably mounted on the inner wall of the sliding groove (109), a fixing frame (104) is fixedly mounted on the mounting plate (103), a bevel groove (105) is provided through the fixing frame (104), a sliding shaft (111) is slidably mounted on the inner wall of the bevel groove (105), the sliding shaft (111) is fixedly mounted on the side of the first sliding block (110), a connecting rod (112) is fixedly mounted on one end of the first sliding block (110) away from the sliding shaft (111), two cutting knives (113) are provided, and the two cutting knives (113) are symmetrically fixedly mounted on the lower side of the connecting rod (112), and when the sliding shaft (111) is located at the lowest point of the bevel groove (105), the blade part of the cutting knife (113) contacts the mounting plate (103).

4. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 3, characterized in that: The pusher assembly comprises a fixed rod (205), the fixed rod (205) is fixedly mounted on the mounting plate (103), a vertical groove (208) is arranged on the side of the fixed rod (205), a second sliding block (209) is slidably mounted on the inner wall of the vertical groove (208), a fifth connecting rod (206) is rotatably mounted on the outer surface of the second sliding block (209), and one end of the fifth connecting rod (206) away from the second sliding block (209) is rotatably connected to the sliding shaft (111).

5. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 4, characterized in that: The pusher assembly also includes a fixed plate (201), which is fixedly mounted on the mounting plate (103); a moving rod (202) is slidably mounted on the side of the fixed plate (201) and the sliding direction is horizontal; a driving shaft (203) is fixedly mounted on the outer surface of the moving rod (202); a fourth connecting rod (204) is rotatably mounted on the outer surface of the driving shaft (203); one end of the fourth connecting rod (204) away from the driving shaft (203) is rotatably connected to the second sliding block (209); one end of the moving rod (202) away from the driving shaft (203) is fixedly connected to the pusher plate (210); and the pusher plate (210) is slidably mounted on the mounting plate (103).

6. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 5, characterized in that: The blanking assembly comprises a second connecting shaft (215), the second connecting shaft (215) is fixedly mounted on the side of the moving frame (108), a sixth connecting rod (214) is rotatably mounted on the outer surface of the second connecting shaft (215), one end of the sixth connecting rod (214) away from the second connecting shaft (215) is rotatably connected to the second connecting shaft (215), a limiting rod (207) is slidably mounted on the side of the second connecting shaft (215), the limiting rod (207) is fixedly mounted on the mounting plate (103), and a first blanking hole (211) and two second blanking holes (212) are also arranged on the mounting plate (103), the first blanking hole (211) is located between the two cutting knives (113), and the two second blanking holes (212) are symmetrically arranged on both sides of the first blanking hole (211).

7. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 6, characterized in that: The collecting mechanism (4) comprises two material discharge plates (402) and a material discharge barrel (403); the two material discharge plates (402) are respectively fixedly mounted below a second material discharge hole (212); the material discharge barrel (403) is respectively fixedly mounted below the first material discharge hole (211); a collecting box (401) is respectively fixedly mounted below each material discharge plate (402); and each collecting box (401) is respectively fixedly mounted between two support columns (3).

8. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 7, characterized in that: The reciprocating rotating assembly comprises a seventh connecting rod (501), the seventh connecting rod (501) is rotatably mounted on the outer surface of the second slider (209), a third connecting shaft (502) is rotatably mounted on one end of the seventh connecting rod (501) away from the second slider (209), an eighth connecting rod (504) is fixedly mounted on the side of the third connecting shaft (502), an intermediate shaft (503) is rotatably mounted on the side of the eighth connecting rod (504), the intermediate shaft (503) is fixedly mounted on the support column (3), a fourth connecting shaft (505) is fixedly mounted on one end of the eighth connecting rod (504) away from the third connecting shaft (502), a ninth connecting rod (506) is rotatably mounted on the outer surface of the fourth connecting shaft (505), and a fifth connecting shaft (506) is rotatably mounted on one end of the ninth connecting rod (506) away from the fourth connecting shaft (505). 507), a tenth connecting rod (508) is rotatably mounted on the side of the fifth connecting shaft (507), a transmission shaft (509) is rotatably mounted on one end of the tenth connecting rod (508) away from the fifth connecting shaft (507), a mounting hole (107) is provided on the side of the support column (3), the transmission shaft (509) is rotatably mounted on the inner wall of the mounting hole (107), the transmission shaft (509) is located above the lower plate (514), the rotating plate (510) is fixedly mounted on the outer surface of the transmission shaft (509), and a plurality of perforated tubes (519) are fixedly mounted on the side of the rotating plate (510) facing the lower plate (514) in an array with equal spacing, and when the upper surface of the rotating plate (510) is parallel to the upper surface of the lower plate (514), the lower end surface of the perforated tube (519) coincides with the upper end surface of the lower plate (514).

9. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 8, characterized in that: The intermittent rotation assembly comprises a vertical shaft (512), the vertical shaft (512) is rotatably mounted on a lower plate (514), a rotating rod (511) is fixedly mounted on the outer surface of the vertical shaft (512), a connecting plate (520) is rotatably mounted on the vertical shaft (512), the connecting plate (520) is fixedly mounted on a supporting column (3), a torsion spring (513) is wound around the outer surface of the vertical shaft (512), one end of the torsion spring (513) is fixedly mounted on the connecting plate (520), and the other end of the torsion spring (513) is fixedly mounted on the rotating rod (511).

10. The apparatus for opening holes in a high polymer absorbent core of a sanitary napkin according to claim 9, characterized in that: A first gear (515) is fixedly mounted on the outer surface of the vertical shaft (512), the first gear (515) is rotatably mounted on the lower side of the lower plate (514), a motor bracket (518) is fixedly mounted on the lower side of the lower plate (514), a second motor (517) is fixedly mounted on the motor bracket (518), a second gear (516) is fixedly mounted on the output end of the second motor (517), the tooth profile of the second gear (516) is incomplete, and the second gear (516) is intermittently meshed with the first gear (515).

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