Paper diaper elastic cutting mechanism

Abstract

The invention relates to the technical field of disposable hygienic product production equipment, in particular to a paper diaper elastic cutting mechanism which is characterized by comprising a rotating shaft and a transfer adsorption wheel, a plurality of elastic tool apron devices are arranged on the circumferential wall of the transfer adsorption wheel, and a plurality of jacking driving devices are arranged in the transfer adsorption wheel; the jacking driving device is used for driving the elastic tool apron devices to move outwards and jacking the elastic tool apron devices outwards to open a to-be-cut area on the paper diaper at a time, and a plurality of sliding cutting devices corresponding to the elastic tool apron devices one to one are arranged outside the transfer adsorption wheel. The sliding cutting device is matched with the elastic tool apron device and used for cutting the to-be-cut area on the paper diaper. According to the paper diaper cutting device, under the cooperation of transfer and adsorption of the transfer and adsorption wheels on the paper diapers, the to-be-cut areas of the paper diapers are jacked outwards and opened, so that the paper diapers are not prone to wrinkles, after cutting, the paper diapers are not prone to being guided to generate many scratches at the cut positions of the paper diapers, the cutting precision is better, and the product quality is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disposable sanitary product production equipment, and particularly relates to a paper diaper elastic cutting mechanism. BACKGROUND

[0002] Paper diapers are common sanitary products in people's daily life, and are the general term of paper diapers, diapers and pull-ups. The existing paper diaper production is all flow line production. The existing paper diapers need to be cut by cutting equipment during the processing process to obtain pieces of paper diapers with appropriate sizes. However, due to the elastic characteristics of the paper diapers, wrinkles will be caused by elastic shrinkage. However, the traditional cutting equipment is not convenient to further locally expand the cutting area of the paper diapers during cutting. If the cutting is performed when the wrinkles of the paper diapers are not completely expanded, more scratches will be caused at the cutting part of the paper diapers, which will affect the cutting accuracy and the overall product quality of the paper diapers. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a paper diaper elastic cutting mechanism which, under the cooperation of the transfer adsorption wheel, expands the cutting area of the paper diapers by pushing outward, so that wrinkles are not easily caused, more scratches are not easily caused at the cutting part of the paper diapers after cutting, the cutting accuracy is better, and the product quality is effectively ensured.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a paper diaper elastic cutting mechanism, comprising a rotating shaft rotatably installed on a fixed plate and a transfer adsorption wheel fixedly installed on the rotating shaft, a plurality of elastic knife seat devices are uniformly arranged on the circumferential wall of the transfer adsorption wheel in the circumferential direction, a plurality of lifting driving devices corresponding to the elastic knife seat devices are arranged in the transfer adsorption wheel, the lifting driving devices are used to drive the elastic knife seat devices to move outward and lift outward to expand the cutting area of the paper diapers at one time, a plurality of sliding cutting devices corresponding to the elastic knife seat devices are arranged outside the transfer adsorption wheel, the sliding cutting devices are matched with the elastic knife seat devices and used to cut the cutting area of the paper diapers.

[0005] Further, the elastic knife seat device comprises a lower knife seat, a top block, a compression spring, a guide rod and an abutting plate, the lower knife seat is fixedly provided with the top block and the guide rod on the lower end surface, the guide rod is two and symmetrically arranged on the two sides of the top block, the outer circumferential surface of the transfer adsorption wheel is provided with an accommodating groove matched with the lower knife seat, the inner bottom surface of the accommodating groove is provided with a top exit matched with the top block and two guide holes matched with the guide rods, the lower knife seat is movably arranged in the accommodating groove and the top block passes through the top exit and the two guide rods pass through the two guide holes respectively, the bottom end of the guide rod is fixedly installed with the abutting plate, the compression spring is two and is sleeved on the two guide rods respectively, one end of the compression spring abuts against the inner circumferential surface of the transfer adsorption wheel and the other end abuts against the abutting plate, when the lower knife seat is in the accommodating groove, the upper surface of the lower knife seat is not higher than the outer circumferential surface of the transfer adsorption wheel.

[0006] Further, the jacking driving device comprises a connecting shaft, an eccentric wheel, a swing rod, a fixing shaft, a jacking roller and a jacking guide groove, the connecting shaft is rotatably installed on the side wall of the transfer adsorption wheel, the eccentric wheel is fixed on the connecting shaft and they are arranged in different axes, the outer circumferential surface of the eccentric wheel abuts against the lower end surface of the top block, one end of the connecting shaft is fixedly connected with one end of the swing rod, the other end of the swing rod is fixedly provided with the fixing shaft, the jacking roller is rotatably installed on the fixing shaft, the jacking guide groove is annular and is arranged on one side end surface of the first guide wheel, the first guide wheel is fixedly installed on the fixing plate, the jacking roller is matched with the jacking guide groove, the jacking roller is embedded in the jacking guide groove and they are rollingly matched, when the jacking roller rolls along the jacking guide groove, the swing rod can be intermittently reciprocated to drive the connecting shaft to be intermittently reciprocated, the jacking guide groove comprises a large circular arc segment, a first arc transition segment, a small circular arc segment and a second arc transition segment which are sequentially connected, the diameter of the large circular arc segment is larger than that of the small circular arc segment, and the arc length of the small circular arc segment is larger than that of the large circular arc segment.

[0007] Further, the sliding cutting device comprises a sliding seat, a cutting assembly and a first sliding driving assembly, the cutting assembly is arranged on the sliding seat, the sliding seat is slidably connected with the transfer adsorption wheel through the first sliding assembly, and the first sliding driving assembly is used to drive the sliding seat to slide along the axial direction of the transfer adsorption wheel and switch between the cutting position and the avoiding position.

[0008] Further, the sliding cutting device further comprises a secondary rolling and opening assembly, the secondary rolling and opening assembly is arranged on the lifting seat, the two ends of the lifting seat are slidably connected with the sliding seat through the second sliding assembly, the sliding seat is provided with a lifting driving assembly for driving the lifting seat to slide up and down, the lifting driving assembly is two and symmetrically arranged on the two sides of the lifting seat, the lower knife seat is in the shape of an isosceles trapezoid with the upper part being narrow and the lower part being wide, and the secondary rolling and opening assembly simultaneously rolls downward from the two side slopes of the lower knife seat to perform secondary rolling and opening on the cutting area of the paper diaper which has been once opened.

[0009] Further, the secondary rolling and expanding assembly comprises a pressing roller, a turnover seat, a tension spring and a limiting block, the turnover seat is provided in two and is spaced, the top ends of the two turnover seats are rotationally connected with the lifting seat, the bottom of each of the two turnover seats is provided with a rotatable pressing roller, the length of the pressing roller is greater than the length of the lower knife seat, the tension spring is fixedly connected between the two sides of the two turnover seats, and the limiting block is fixedly arranged on the two sides of the lifting seat between the two turnover seats.

[0010] Further, the cutting assembly comprises a cutting motor, a sliding plate, a cutting wheel, a cutting shaft and a mounting plate, the sliding plate is slidably connected to the upper end of the lifting seat through a third sliding assembly, the lifting seat is provided with a second sliding driving assembly for driving the sliding plate to slide horizontally, the mounting plate is provided in two and is fixedly and spacedly arranged at the bottom end of the sliding plate, the lifting seat is provided with a first slot for the mounting plate to pass through, the cutting shaft is rotatably mounted between the bottom of the two mounting plates, the cutting wheel is fixedly arranged on the cutting shaft, an annular blade is fixedly arranged on the outer circumferential surface of the cutting wheel, the cutting motor is fixedly mounted on the sliding plate, the motor shaft of the cutting motor is drivingly connected with one end of the cutting shaft through a first belt transmission assembly, and the second slot is arranged on the sliding plate for the first belt transmission assembly to pass through.

[0011] Further, flexible pressing sleeves are arranged on the outer circumferential surface of the cutting wheel on the two sides of the annular blade.

[0012] Further, the first sliding driving assembly comprises a sliding shaft, a sliding roller and a sliding guide groove, one end of the sliding shaft is fixedly connected with the bottom end of the sliding seat, the other end of the sliding shaft is provided with a rotatable sliding roller, the third slot is arranged on the circumferential wall of the transfer adsorption wheel for the sliding shaft to pass through, the sliding guide groove is annular and is arranged on the outer circumferential surface of the second guide wheel, the second guide wheel is fixedly arranged on the fixed plate, the sliding roller is matched with the sliding guide groove, the sliding roller is embedded in the sliding guide groove and is rollingly connected therebetween, when the sliding roller rolls along the sliding guide groove, the sliding shaft is driven to intermittently and reciprocally slide to drive the sliding seat to intermittently and reciprocally slide, the sliding guide groove, when unfolded, comprises a first horizontal section, a first inclined section, a second horizontal section and a second inclined section arranged alternately, the first horizontal section and the second horizontal section are parallel and spaced, the first inclined section and the second inclined section are used to connect the head and tail ends of the first horizontal section and the second horizontal section, and the first horizontal section is arranged on the side close to the fixed plate.

[0013] Furthermore, the transfer adsorption wheel includes a first end plate, a second end plate, an annular adsorption wheel body and an annular mounting wheel body, a detachable first end plate is installed at one end of the adsorption wheel body, and a second end plate and a mounting wheel body are fixedly provided at the other end of the adsorption wheel body, the mounting wheel body and the adsorption wheel body are arranged coaxially, and a plurality of transfer adsorption holes are distributed on the outer circumferential surface of the adsorption wheel body, and a negative pressure cover is provided between two adjacent jacking drive devices in the adsorption wheel body, the negative pressure cover is fixedly installed on the rotating shaft, a negative pressure cavity is provided in the negative pressure cover, which is open to one side of the inner surface of the adsorption wheel body, and a negative pressure channel connected to the negative pressure cavity is provided in the rotating shaft, and an arc-shaped shielding piece is provided on one side of the lower part of the adsorption wheel body to match the adsorption wheel body and the gap between the two is matched, and the arc-shaped shielding piece is fixedly installed on the fixing plate.

[0014] As can be seen from the above description, the elastic cutting mechanism for diapers provided by the present invention has the following beneficial effects: the transfer and adsorption of the diapers by the transfer adsorption wheel can achieve relative adsorption and fixation of the diapers on both sides of the elastic knife seat device; when the lifting drive device drives the elastic knife seat device to move outward and pushes it outward, the area to be cut of the diaper can be stretched, so that the area to be cut on the diaper is not prone to wrinkles, thereby, after cutting by the sliding cutting device, it is not easy for the paper to be guided to have many scratches at the cutting part of the diaper, the cutting accuracy is better, and the product quality is effectively ensured; when the lifting drive assembly drives the lifting seat to descend, the pressure roller can be synchronously lowered, and at the same time, in conjunction with the setting of the tension spring, it can ensure that the two pressure rollers roll downward along the inclined surfaces on both sides of the lower knife seat at the same time, so as to roll down the diapers pushed up on both sides of the lower knife seat at the same time, thereby achieving a second rolling and stretching of the area to be cut on the diaper that has been stretched once, so as to further ensure that the area to be cut on the diaper is not prone to wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a diaper elastic cutting mechanism of the present invention.

[0016] Figure 2 The figure is a schematic diagram of the internal structure of a diaper elastic cutting mechanism of the present invention.

[0017] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0018] Figure 4 for Figure 2 Schematic diagram of the cross section in the BB direction.

[0019] Figure 5 for Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding cutting device.

[0021] Figure 7 The schematic view of the three-dimensional structure of the first guide wheel and the second guide wheel.

[0022] Figure 8 The schematic view of the three-dimensional structure of the adsorption wheel body and the mounting wheel body.

[0023] Figure 9 The schematic view of the three-dimensional structure of the cutting assembly.

[0024] In the figure: 1-fixed plate; 2-rotating shaft; 21-negative pressure channel; 3-transferring adsorption wheel; 31-first end plate; 32-second end plate; 33-adsorption wheel body; 331-transferring adsorption hole; 332- accommodating groove; 333-top outlet; 334-guiding hole; 34-mounting wheel body; 341-third slot; 35-negative pressure cover; 351-negative pressure cavity; 4-elastic knife seat device; 41-lower knife seat; 42-top block; 43-compression spring; 44-guiding rod; 45-abutment plate; 5-lifting driving device; 51-connecting shaft; 52- eccentric wheel; 53-rocker; 54-fixed shaft; 55-lifting roller; 56-first guide wheel; 561-lifting guide slot; 5611-large circular arc segment; 5612-first arc transition segment; 5613-small circular arc segment; 5614-second arc transition segment; 6-sliding cutting device; 61-sliding seat; 62-cutting assembly; 621-cutting motor; 622-sliding plate; 6221-second slot; 623-cutting wheel; 6231-annular blade; 6232-flexible pressing sleeve; 624-cutting shaft; 625-mounting plate; 626-first belt transmission assembly; 63-first sliding driving assembly; 631-sliding shaft; 632-sliding roller; 633-second guide wheel; 6331-sliding guide slot; 63311-first horizontal segment; 63312-first inclined segment; 63313-second horizontal segment; 64-first sliding assembly; 65-secondary rolling and opening assembly; 651-pressing roller; 652-flipping seat; 653-stretching spring; 654-limiting block; 66-lifting seat; 661-first slot; 67-second sliding assembly; 68-lifting driving assembly; 691-third sliding assembly; 692-second sliding driving assembly; 7-circular arc-shaped mask. DETAILED DESCRIPTION

[0025] The application will be further described in the following specific embodiments.

[0026] As Figures 1 to 9As shown, the paper diaper elastic cutting mechanism comprises a rotating shaft 2 rotatably installed on a fixed plate 1 and a transfer adsorption wheel 3 fixedly installed on the rotating shaft 2, a plurality of elastic knife seat devices 4 are uniformly arranged on the circumferential wall of the transfer adsorption wheel 3 in the circumferential direction, a plurality of jacking driving devices 5 corresponding to the elastic knife seat devices 4 are arranged in the transfer adsorption wheel 3, the jacking driving devices 5 are used to drive the elastic knife seat devices 4 to move outward and jack up the cutting area on the paper diaper, a plurality of sliding cutting devices 6 corresponding to the elastic knife seat devices 4 are arranged outside the transfer adsorption wheel 3, the sliding cutting devices 6 are matched with the elastic knife seat devices 4 and are used to cut the cutting area on the paper diaper.

[0027] Through the transfer adsorption of the paper diaper by the transfer adsorption wheel 3, the relative adsorption and fixation of the paper diaper on both sides of the elastic knife seat device 4 can be realized, when the jacking driving device 5 drives the elastic knife seat device 4 to move outward and jacks up, the cutting area on the paper diaper can be opened, so that the cutting area on the paper diaper is not easy to have wrinkles, after the cutting by the sliding cutting device 6, the paper is not easy to have more scratches at the cutting position of the paper diaper, the cutting precision is better, and the product quality is effectively ensured.

[0028] Preferably, the number of the elastic knife seat devices 4, the jacking driving devices 5 and the sliding cutting devices 6 is 3-4.

[0029] The elastic cutter seat device 4 comprises a lower cutter seat 41, a jacking block 42, a compression spring 43, a guide rod 44 and an abutting plate 45, the lower end surface of the lower cutter seat 41 is fixedly provided with the jacking block 42 and the guide rod 44, the guide rod 44 is two and symmetrically arranged on both sides of the jacking block 42, the outer circumferential surface of the transfer adsorption wheel 3 is provided with a containing groove 332 matched with the lower cutter seat 41, the inner bottom surface of the containing groove 332 is provided with a top exit 333 matched with the jacking block 42 and two guide holes 334 matched with the guide rods 44, the lower cutter seat 41 is movably arranged in the containing groove 332 and makes the jacking block 42 pass through the top exit 333 and makes the two guide rods 44 pass through the two guide holes 334 respectively, the bottom end of the guide rod 44 is fixedly installed with the abutting plate 45, the compression spring 43 is two and is sleeved on the two guide rods 44 respectively, one end of the compression spring 43 abuts against the inner circumferential surface of the transfer adsorption wheel 3 and the other end abuts against the abutting plate 45, through the arrangement of the guide rod 44 and the guide hole 334, the movement of the lower cutter seat 41 can be well guided, the stability and smoothness of the movement of the lower cutter seat 41 can be effectively ensured, through the arrangement of the jacking block 42, the jacking driving device 5 can jack up the jacking block 42 outward, so as to jack up the lower cutter seat 41 outward and jack out the lower cutter seat 41 from the containing groove 332, through the arrangement of the compression spring 43, when the jacking driving device 5 does not jack up the jacking block 42 outward, the compression spring 43 can drive the lower cutter seat 41 to move to one side of the containing groove 332 and reset in the containing groove 332, when the lower cutter seat 41 is in the containing groove 332, the upper surface of the lower cutter seat 41 is not higher than the outer circumferential surface of the transfer adsorption wheel 3.

[0030] The jack-up driving device 5 comprises a connecting shaft 51, an eccentric wheel 52, a swing rod 53, a fixed shaft 54, a jack-up roller 55 and a jack-up guide groove 561, the connecting shaft 51 is rotatably installed on the side wall of the transfer adsorption wheel 3, the eccentric wheel 52 is fixed on the connecting shaft 51 and arranged in different shafts, the outer circumferential surface of the eccentric wheel 52 abuts against the lower end surface of the jack-up block 42, one end of the connecting shaft 51 is fixedly connected with one end of the swing rod 53, the other end of the swing rod 53 is fixedly provided with the fixed shaft 54, the rotatable jack-up roller 55 is installed on the fixed shaft 54, the jack-up guide groove 561 is annular and arranged on one side end surface of the first guide wheel 56, the first guide wheel 56 is fixedly installed on the fixed plate 1, the jack-up roller 55 is matched with the jack-up guide groove 561, the jack-up roller 55 is embedded in the jack-up guide groove 561 and they are rollingly matched, when the jack-up roller 55 rolls along the jack-up guide groove 561, the swing rod 53 can be intermittently reciprocated to drive the connecting shaft 51 to be intermittently rotated, by adopting this structure, when the jack-up roller 55 rolls in the jack-up guide groove 561 along with the rotation of the transfer adsorption wheel 3, the relative position between the fixed shaft 54 and the connecting shaft 51 can be changed, so that the swing rod 53 can be swung to drive the connecting shaft 51 to be rotated, thereby driving the eccentric wheel 52 to be rotated, and finally the jack-up block 42 can be jacked up or not jacked up outward.

[0031] Correspondingly, the lifting guide groove 561 comprises a large circular arc segment 5611, a first arc transition segment 5612, a small circular arc segment 5613 and a second arc transition segment 5614 connected in sequence, the diameter of the large circular arc segment 5611 is larger than that of the small circular arc segment 5613, and the arc length of the small circular arc segment 5613 is larger than that of the large circular arc segment 5611. Therefore, when the lifting roller 55 rolls from the large circular arc segment 5611 to the small circular arc segment 5613 through the first arc transition segment 5612, the swing rod 53 swings, the connecting shaft 51 rotates, and the eccentric wheel 52 switches from the position of lifting the top block 42 outward to the position of not lifting the top block 42 outward. When the lifting roller 55 rolls in the small circular arc segment 5613, the swing rod 53 does not swing, and the eccentric wheel 52 remains in the position of not lifting the top block 42 outward. When the lifting roller 55 rolls from the small circular arc segment 5613 to the large circular arc segment 5611 through the second arc transition segment 5614, the swing rod 53 swings, the connecting shaft 51 rotates, and the eccentric wheel 52 switches from the position of not lifting the top block 42 outward to the position of lifting the top block 42 outward. When the lifting roller 55 rolls in the large circular arc segment 5611, the swing rod 53 does not swing, and the eccentric wheel 52 remains in the position of lifting the top block 42 outward.

[0032] The sliding cutting device 6 comprises a sliding seat 61, a cutting assembly 62 and a first sliding driving assembly 63. The cutting assembly 62 is arranged on the sliding seat 61. The sliding seat 61 is connected with the transfer adsorption wheel 3 through a first sliding assembly 64. The first sliding driving assembly 63 is used to drive the sliding seat 61 to slide along the axial direction of the transfer adsorption wheel 3 and switch between the cutting position and the avoiding position.

[0033] Preferably, the first sliding assembly 64 is two and is arranged at intervals. The first sliding assembly 64 comprises a first sliding rail and a first sliding block. The first sliding rail is fixedly installed on the transfer adsorption wheel 3. The first sliding block is a plurality of and is fixedly installed on the sliding seat 61 at intervals. The first sliding block is matched with the first sliding rail and is in sliding fit therebetween. Therefore, the sliding of the sliding seat 61 can be well guided, and the stability and smoothness of the sliding of the sliding seat 61 can be effectively ensured.

[0034] In addition, the sliding cutting device 6 further comprises a secondary rolling opening assembly 65 arranged on a lifting seat 66, both ends of the lifting seat 66 are slidably connected with the sliding seat 61 through a second sliding assembly 67, the sliding seat 61 is provided with a lifting driving assembly 68 for driving the lifting seat 66 to slide up and down, the lifting driving assembly 68 is two and symmetrically arranged on both sides of the lifting seat 66, the lower knife seat 41 is in the shape of an isosceles trapezoid with a narrow top and a wide bottom, and the secondary rolling opening assembly 65 simultaneously rolls downward from the two sides of the lower knife seat 41 to perform secondary rolling opening on the cutting area of the diaper that has been once opened.

[0035] Preferably, both ends of the lifting seat 66 are provided with two second sliding assemblies 67 arranged at intervals, the second sliding assembly 67 comprises a second sliding rail and a second sliding block, the second sliding rail is fixedly installed on the sliding seat 61, and the second sliding block is fixedly installed on the lifting seat 66, the second sliding block is matched with the second sliding rail and is in sliding fit therebetween, thereby the lifting seat 66 can be well guided in lifting, and the stability and smoothness of the lifting seat 66 in lifting can be effectively ensured.

[0036] Correspondingly, the lifting driving assembly 68 comprises a lifting servo motor, a lifting transmission screw and a lifting sliding table, the lifting servo motor is fixedly installed on a lifting motor base, the motor shaft of the lifting servo motor is in transmission connection with the upper end of the lifting transmission screw through a lifting coupling, the lifting transmission screw is vertically arranged and is rotatably installed on the sliding seat 61, and the lifting sliding table is sleeved on the lifting transmission screw and is in threaded transmission fit therebetween, and the lifting sliding table is fixedly installed on the lifting seat 66, thereby the lifting transmission screw can be driven to rotate forward and reverse by controlling the forward and reverse rotation of the lifting servo motor, and the lifting sliding table can be driven to lift under the guidance of the second sliding assembly 67, so that the lifting seat 66 can be lifted, correspondingly, the rotating shaft 2 is coaxially provided with a conductive slip ring, and the lifting servo motor is in electrical connection with the conductive slip ring, so as to avoid the winding of the wire in the rotating process.

[0037] Correspondingly, the secondary rolling and opening assembly 65 comprises a pressure roller 651, a turnover seat 652, a tension spring 653 and a limiting block 654, the turnover seat 652 is two and is arranged at intervals, the top of the two ends of the turnover seat 652 is rotationally connected with the lifting seat 66, the bottom of the two turnover seats 652 is rotationally connected with the pressure roller 651, the length of the pressure roller 651 is greater than the length of the lower knife seat 41, the two sides of the two turnover seats 652 are fixedly connected with the tension spring 653, the two sides of the lifting seat 66 between the two turnover seats 652 is fixedly provided with the limiting block 654, when the lifting driving assembly 68 drives the lifting seat 66 to descend, the pressure roller 651 can be synchronized to descend, and the setting of the tension spring 653 can ensure that the two pressure rollers 651 are simultaneously rolled down along the two side slopes of the lower knife seat 41, so that the paper diaper on the two sides of the lower knife seat 41 is simultaneously rolled down, thereby realizing secondary rolling and opening of the to-be-cut area of the paper diaper which has been once opened, and further ensuring that the to-be-cut area of the paper diaper is not prone to wrinkles, when the cutting is completed, the lifting driving assembly 68 drives the lifting seat 66 to ascend, the pressure roller 651 can be synchronized to ascend, and under the elastic force of the tension spring 653 and the limiting effect of the limiting block 654, the two turnover seats 652 can be synchronized to turn inward and reset.

[0038] The cutting assembly 62 comprises a cutting motor 621, a sliding plate 622, a cutting wheel 623, a cutting shaft 624 and mounting plates 625. The sliding plate 622 is slidably connected to the upper end of the lifting seat 66 through a third sliding assembly 691. The lifting seat 66 is provided with a second sliding drive assembly 692 for driving the sliding plate 622 to slide horizontally. The mounting plates 625 are two in number and are fixedly and spacedly arranged at the bottom end of the sliding plate 622. The lifting seat 66 is provided with a first slot 661 for the mounting plates 625 to pass through. The cutting shaft 624 is rotatably mounted between the bottoms of the two mounting plates 625. The cutting wheel 623 is fixedly arranged on the cutting shaft 624. An annular blade 6231 is fixedly arranged on the outer circumferential surface of the cutting wheel 623. In addition, flexible sleeves 6232 are arranged on the outer circumferential surface of the cutting wheel 623 on both sides of the annular blade 6231. Preferably, the flexible sleeves are made of rubber or silicone. The cutting motor 621 is fixedly mounted on the sliding plate 622. The motor shaft of the cutting motor 621 is drivingly connected to one end of the cutting shaft 624 through a first belt transmission assembly 626. The sliding plate 622 is provided with a second slot 6221 for the first belt transmission assembly 626 to pass through. In this way, by controlling the rotation of the cutting motor 621, the cutting wheel 623 can be driven to rotate under the transmission of the first belt transmission assembly 626. At the same time, the two flexible sleeves 6232 press the paper diaper from both sides of the annular blade 6231. The sliding plate 622 is driven to slide by the second sliding drive assembly 692, so that the annular blade 6231 can more easily and smoothly cut the cutting area on the paper diaper. Correspondingly, the cutting motor 621 is electrically connected to the conductive slip ring to avoid wire entanglement during rotation.

[0039] Correspondingly, the first belt transmission assembly 626 comprises a first driving pulley, a first driven pulley and a first transmission belt. The first driving pulley is fixedly mounted on the motor shaft of the cutting motor 621. The first driven pulley is fixedly mounted on one end of the cutting shaft 624. The first driving pulley is drivingly connected to the first driven pulley through the first transmission belt.

[0040] Preferably, the third sliding assembly 691 is two in number and is arranged at intervals. The third sliding assembly 691 comprises a third sliding rail and a third sliding block. The third sliding rail is fixedly mounted on the lifting seat 66. The third sliding block is fixedly mounted on the sliding plate 622. The third sliding block is adapted to the third sliding rail and is in sliding fit therebetween. In this way, the sliding of the sliding plate 622 can be well guided, and the stability and smoothness of the sliding plate 622 during sliding can be effectively ensured.

[0041] The second sliding drive assembly 692 comprises a second servo motor, a second belt drive assembly, a second transmission screw and a second sliding table, the second servo motor is fixedly installed on the lifting seat 66, the motor shaft of the second servo motor is in transmission connection with one end of the second transmission screw through the second belt drive assembly, the second transmission screw is rotatably installed on the lifting seat 66, the second sliding table is sleeved on the second transmission screw and is in threaded transmission cooperation therebetween, the second sliding table is fixedly installed on the sliding plate 622, correspondingly, the second belt drive assembly comprises a second driving pulley, a second driven pulley and a second transmission belt, the second driving pulley is fixedly installed on the motor shaft of the second servo motor, the second driven pulley is fixedly installed at one end of the second transmission screw, the second driving pulley is in transmission connection with the second driven pulley through the second transmission belt, in this way, by controlling the forward and reverse rotation of the second servo motor, the second transmission screw can be driven to forward and reverse rotate, and under the guidance of the third sliding assembly 691, the second sliding table can be driven to horizontally reciprocate, so as to realize the horizontal reciprocation of the sliding plate 622, correspondingly, the second servo motor is in electrical connection with the conductive slip ring, so as to avoid the entanglement of the wire during rotation.

[0042] The first sliding drive assembly 63 comprises a sliding shaft 631, a sliding roller 632 and a sliding guide groove 6331, one end of the sliding shaft 631 is fixedly connected with the bottom end of the sliding seat 61, the other end of the sliding shaft 631 is installed with the rotatable sliding roller 632, the circumferential wall of the transfer adsorption wheel 3 is provided with a third slot 341 for the sliding shaft 631 to pass through, the sliding guide groove 6331 is annular and is provided on the outer circumferential surface of the second guide wheel 633, the second guide wheel 633 is fixedly provided on the fixed plate 1, the sliding roller 632 is matched with the sliding guide groove 6331, the sliding roller 632 is embedded in the sliding guide groove 6331 and is in rolling cooperation therebetween, when the sliding roller 632 rolls along the sliding guide groove 6331, the sliding shaft 631 can be driven to intermittently reciprocate to drive the sliding seat 61 to intermittently reciprocate, by adopting this structure, when the sliding roller 632 rolls in the sliding guide groove 6331 along with the rotation of the transfer adsorption wheel 3, the axial position of the sliding roller 632 can be changed, so as to drive the sliding shaft 631 to move relative to the transfer adsorption wheel 3, and finally realize the movement of the sliding seat 61 relative to the transfer adsorption wheel 3, so as to switch the sliding seat 61 between the cutting position and the avoiding position, when the sliding seat 61 is in the avoiding position, the paper diaper can be avoided to interfere with the conveying.

[0043] Correspondingly, the sliding guide groove 6331 comprises first horizontal section 63311, first inclined section 63312, second horizontal section 63313 and second inclined section arranged alternately in sequence after unfolding, the first horizontal section 63311 and the second horizontal section 63313 are arranged in parallel and spaced, the first inclined section 63312 and the second inclined section are used to connect the head and tail of the first horizontal section 63311 and the second horizontal section 63313, the first horizontal section 63311 is arranged on the side close to the fixed plate 1, thereby, when the sliding roller 632 rolls from the first horizontal section 63311 to the second horizontal section 63313 through the first inclined section 63312, it drives the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 to move to the cutting position in the direction close to the elastic knife seat device 4, when the sliding roller 632 rolls in the second horizontal section 63313, at this time, the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 remain in the cutting position, when the sliding roller 632 rolls from the second horizontal section 63313 to the first horizontal section 63311 through the second inclined section, it drives the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 to move to the avoiding position in the direction away from the elastic knife seat device 4, when the sliding roller 632 rolls in the first horizontal section 63311, at this time, the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 remain in the avoiding position.

[0044] The transfer adsorption wheel 3 comprises a first end plate 31, a second end plate 32, a circular ring-shaped adsorption wheel body 33 and a circular ring-shaped mounting wheel body 34, one end of the adsorption wheel body 33 is provided with a detachable first end plate 31, the other end of the adsorption wheel body 33 is fixedly provided with the second end plate 32 and the mounting wheel body 34, the mounting wheel body 34 is coaxially arranged with the adsorption wheel body 33, a plurality of transfer adsorption holes 331 are uniformly arranged on the outer circumferential surface of the adsorption wheel body 33, a negative pressure cover 35 is arranged between adjacent two jack-up driving devices 5 in the adsorption wheel body 33, the negative pressure cover 35 is fixedly mounted on the rotating shaft 2, a negative pressure cavity 351 opening to one side of the inner surface of the adsorption wheel body 33 is arranged in the negative pressure cover 35, a negative pressure channel 21 communicating with the negative pressure cavity 351 is arranged in the rotating shaft 2, correspondingly, the negative pressure channel 21 of the rotating shaft 2 communicates with a negative pressure source, so as to keep providing negative pressure to the negative pressure cavity 351, during the rotation of the adsorption wheel body 33, stable adsorption of the adsorption wheel body 33 to the diaper can be realized.

[0045] In addition, one side of the lower part of the adsorption wheel body 33 is provided with a circular arc-shaped shielding piece 7 matched with the adsorption wheel body 33, and the gap between the two is matched, the circular arc-shaped shielding piece 7 is fixedly installed on the fixed plate 1, so as to shield one side of the lower part of the adsorption wheel body 33, so as to no longer adsorb the paper diaper at this position by negative pressure, so as to realize the release of the cut paper diaper.

[0046] The use method of the paper diaper elastic cutting mechanism is as follows:

[0047] Step one, the paper diaper is conveyed to the transfer adsorption wheel 3 and is adsorbed and transferred by the rotation of the transfer adsorption wheel 3;

[0048] Step two, the top-up roller 55 first rolls from the small circular arc segment 5613 to the large circular arc segment 5611 through the second arc-shaped transition segment 5614, and the eccentric wheel 52 is switched from the position of not outwardly lifting the top block 42 to the position of outwardly lifting the top block 42, so as to drive the lower knife seat 41 to outwardly protrude from the containing groove 332, so as to once lift and open the to-be-cut region on the paper diaper, at the same time, the sliding roller 632 rolls from the first horizontal segment 63311 to the second horizontal segment 63313 through the first inclined segment 63312, and drives the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 to move to the cutting position in the direction close to the elastic knife seat device 4;

[0049] Step three, the top-up roller 55 keeps rolling in the large circular arc segment 5611, at this time, the eccentric wheel 52 keeps at the position of outwardly lifting the top block 42, so as to keep the lower knife seat 41 to once lift and open the to-be-cut region on the paper diaper, at the same time, the sliding roller 632 rolls in the second horizontal segment 63313, at this time, the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 keep at the cutting position;

[0050] Step four, the lifting and driving assembly 68 drives the lifting seat 66 to descend, so as to make the cutting wheel 623 descend and abut against the to-be-cut region of the paper diaper on the lower knife seat 41, and make the pressure roller 651 synchronously descend, and at the same time, cooperate with the setting of the stretching spring 653, so as to ensure that the two pressure rollers 651 simultaneously roll downward along the inclined surfaces on both sides of the lower knife seat 41, so as to simultaneously roll and open the to-be-cut region of the paper diaper which is once opened, thereby realizing the secondary rolling and opening of the to-be-cut region on the paper diaper;

[0051] Step five, the cutting motor 621 drives the cutting wheel 623 to rotate, at the same time, the second sliding drive assembly 692 drives the sliding plate 622 to slide to the side away from the fixed plate 1, so that the cutting wheel 623 moves, so that the flexible pressing sleeve 6232 on the cutting wheel 623 rolls and presses the to-be-cut area on the diaper, and the annular blade 6231 on the cutting wheel 623 stably cuts the to-be-cut area on the diaper;

[0052] Step six, after the diaper cutting is completed, the lifting drive assembly 68 drives the lifting seat 66 to rise, so that the pressing roller 651 rises synchronously, and under the elastic force of the tension spring 653 and in cooperation with the limiting effect of the limiting block 654, the two turnover seats 652 are synchronously turned inward and reset, at the same time, the rotation of the cutting wheel 623 is stopped, and the second sliding drive assembly 692 drives the sliding plate 622 to slide to the side close to the fixed plate 1, so that the cutting assembly 62 slides back to the reset position;

[0053] Step seven, the top-up roller 55 rolls from the large circular arc segment 5611 to the small circular arc segment 5613 through the first arc-shaped transition segment 5612, and the eccentric wheel 52 is switched from the position of top-up the top block 42 outward to the position of not top-up the top block 42 outward, so as to drive the lower knife seat 41 to retreat into the accommodating groove 332, at the same time, the sliding roller 632 rolls from the second horizontal segment 63313 to the first horizontal segment 63311 through the second inclined segment, and drives the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 to move to the avoiding position away from the elastic knife seat device 4;

[0054] Step eight, the top-up roller 55 keeps rolling in the small circular arc segment 5613, at this time, the eccentric wheel 52 keeps in the position of not top-up the top block 42 outward, so as to keep the lower knife seat 41 in the accommodating groove 332, at the same time, the sliding roller 632 rolls in the first horizontal segment 63311, at this time, the sliding seat 61, the cutting assembly 62 and the secondary rolling and opening assembly 65 keep in the avoiding position;

[0055] Step nine, the cut diaper is adsorbed and transferred by the transfer adsorption wheel 3, and is released at the circular arc-shaped shade 7, so as to be conveyed subsequently.

[0056] Step ten, with the continuous adsorption and transfer of the diaper by the transfer adsorption wheel 3, steps two to nine are repeated to realize the continuity of production.

[0057] The above are only some specific embodiments of the present application, but the design concept of the present application is not limited thereto, and any non-essential modification of the present application by using the concept shall be regarded as an infringement of the protection scope of the present application.

Claims

1. A diaper elastic cutting mechanism, comprising a rotating shaft rotatably mounted on a fixed plate and a transfer adsorption wheel fixedly mounted on the rotating shaft, characterized in that: The circumferential wall of the transfer adsorption wheel is provided with a plurality of elastic knife seat devices evenly arranged along its circumferential direction; the transfer adsorption wheel is provided with a plurality of lifting drive devices arranged in a one-to-one correspondence with the elastic knife seat devices; the lifting drive devices are used to drive the elastic knife seat device to move outward and lift it outward and open the area to be cut on the diaper at one time; the transfer adsorption wheel is provided with a plurality of sliding cutting devices arranged in a one-to-one correspondence with the elastic knife seat devices; the sliding cutting devices cooperate with the elastic knife seat device and are used to cut the area to be cut on the diaper.

2. The diaper elastic cutting mechanism according to claim 1, characterized in that: The camming mechanism that this sliding part is connected with the said sliding part has the said outer cover being placed on the said sliding part and the said outer cover being placed on the"swinging"pathway of the said track. The said camming mechanism that this sliding part has the said outer cover being placed on the"swinging"path of the said track.

3. The diaper elastic cutting mechanism according to claim 2, characterized in that: The jacking drive device includes a connecting shaft, an eccentric wheel, a rocker arm, a fixed shaft, a jacking roller and a jacking guide groove, the connecting shaft is rotatably mounted on the side wall of the transfer adsorption wheel, the eccentric wheel is fixed on the connecting shaft and the two are not coaxially arranged, the outer circumference of the eccentric wheel is kept in contact with the lower end surface of the top block, one end of the connecting shaft is fixedly connected to one end of the rocker arm, the other end of the rocker arm is fixedly provided with the fixed shaft, the rotatable jacking roller is mounted on the fixed shaft, the jacking guide groove is ring-shaped and is provided on one side end surface of the first guide wheel, the first guide The guide wheel is fixedly mounted on the fixed plate, the jacking roller is adapted to the jacking guide groove, the jacking roller is embedded in the jacking guide groove and the two are in rolling cooperation, when the jacking roller rolls along the jacking guide groove, it can drive the rocker arm to swing back and forth intermittently to drive the connecting shaft to rotate back and forth intermittently, the jacking guide groove includes a large arc segment, a first arc transition segment, a small arc segment and a second arc transition segment connected end to end in sequence, the diameter of the large arc segment is larger than the diameter of the small arc segment, and the arc length of the small arc segment is larger than the arc length of the large arc segment.

4. The diaper elastic cutting mechanism according to claim 2, characterized in that: The sliding cutting device includes a sliding seat, a cutting assembly and a first sliding drive assembly. The cutting assembly is arranged on the sliding seat. The sliding seat is slidingly connected to the transfer adsorption wheel through the first sliding assembly. The first sliding drive assembly is used to drive the sliding seat to slide along the axial direction of the transfer adsorption wheel and switch it between a cutting position and an avoidance position.

5. The diaper elastic cutting mechanism according to claim 4, characterized in that: The sliding cutting device also includes a secondary rolling and stretching component, which is arranged on a lifting seat, and both ends of the lifting seat are connected to the sliding seat for sliding up and down through a second sliding component. The sliding seat is provided with a lifting drive component for driving the lifting seat to slide up and down, and the lifting drive components are two and symmetrically arranged on both sides of the lifting seat. The lower knife seat is in the shape of an isosceles trapezoid that is narrow at the top and wide at the bottom. The secondary rolling and stretching component rolls downward from the inclined surfaces on both sides of the lower knife seat at the same time to perform a secondary rolling and stretching on the area to be cut on the diaper that has been stretched once.

6. The diaper elastic cutting mechanism according to claim 5, characterized in that: The secondary rolling and stretching assembly includes a pressure roller, a flip seat, a tension spring and a limit block. The flip seats are two and arranged at an interval, and both ends of their tops are rotatably connected to the lifting seat. The bottoms of the two flip seats are each equipped with a rotatable pressure roller. The length of the pressure roller is greater than the length of the lower knife seat. The tension spring is fixedly connected between the two sides of the flip seats. The limit blocks are fixedly provided on both sides of the lifting seat between the two flip seats.

7. The diaper elastic cutting mechanism according to claim 5, characterized in that: The cutting assembly comprises a cutting motor, a sliding plate, a cutting wheel, a cutting shaft and a mounting plate, the sliding plate is slidably connected to the upper end of the lifting seat by a third sliding assembly, and the lifting seat is provided with a second sliding drive assembly for driving the sliding plate to slide horizontally, the mounting plate is two and fixedly arranged at an interval on the bottom end of the sliding plate, the lifting seat is provided with a first strip slot for allowing the mounting plate to pass through, the cutting shaft is rotatably mounted between the bottom ends of the two mounting plates, the cutting wheel is fixedly mounted on the cutting shaft, an annular blade is fixedly provided in the middle of the outer peripheral surface of the cutting wheel, the cutting motor is fixedly mounted on the sliding plate, and the motor shaft of the cutting motor is transmission-connected to one end of the cutting shaft through the first belt transmission assembly, and the sliding plate is provided with a second strip slot for allowing the first belt transmission assembly to pass through.

8. The diaper elastic cutting mechanism according to claim 7, characterized in that: Flexible pressing sleeves are sleeved on both sides of the annular blade on the outer circumference of the cutting wheel.

9. The diaper elastic cutting mechanism according to claim 4, characterized in that: The cam is fixedly mounted on the drive means, wherein the cam is secured to the bottom of the drive means and the guide rail is secured on a flat plate with respect to the guide rail.

10. The diaper elastic cutting mechanism according to claim 1, characterized in that: The transfer adsorption wheel comprises a first end plate, a second end plate, an annular adsorption wheel body and an annular mounting wheel body, one end of the adsorption wheel body is provided with a detachable first end plate, the other end of the adsorption wheel body is fixedly provided with the second end plate and the mounting wheel body, the mounting wheel body is coaxially arranged with the adsorption wheel body, and a plurality of transfer adsorption holes are arranged on the outer circumferential surface of the adsorption wheel body. A negative pressure cover is provided in the adsorption wheel body between two adjacent jacking drive devices, and the negative pressure cover is fixedly installed on the rotating shaft. A negative pressure cavity is provided in the negative pressure cover, which is open to one side of the inner surface of the adsorption wheel body, and a negative pressure channel is provided in the rotating shaft, which is connected to the negative pressure cavity. A circular arc-shaped shielding piece is provided on one side of the lower portion of the adsorption wheel body, which is adapted to the adsorption wheel body and the gap between the two is matched, and the circular arc shielding piece is fixedly installed on the fixing plate.

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