A four-corner positioning and cutting device for a nursing pad

Abstract

The invention discloses a four-corner positioning and slitting device for a nursing pad, which belongs to the technical field of nursing pad production. The device comprises two supporting uprights, wherein the outer wall of one of the supporting uprights is rotatably connected with an upright rod, the upright rod penetrates the outer walls of the two supporting uprights, the outer part of the upright rod is fixedly connected with two active pulleys, and a driving motor is installed on one side of one of the supporting uprights. During the slitting process, when the slitting knife completes slitting the nursing mattress, the slitting knife will slightly collide with the outer part of the negative pressure adsorption wheel, and force will be generated when the slitting knife hits the negative pressure adsorption wheel. After the force is generated, the slitting knife will squeeze an elastic rubber seat due to the force, and the elastic rubber seat will be deformed after being squeezed by the force, thereby driving the slitting knife to retract. After the retraction, the hard collision phenomenon between the slitting knife and the negative pressure adsorption wheel is reduced, the collision and wear phenomenon of the slitting knife is reduced, and the service life of the slitting knife is extended.

Description

Technical Field

[0001] The invention relates to the technical field of nursing pad production, and in particular to a four-corner positioning and cutting device for a nursing pad. Background Art

[0002] During the production of nursing pads, nursing pads need to go through multiple processes, among which compaction and slitting are key links. The compaction process aims to tightly bond the various layers of materials of the nursing pad through mechanical pressure to ensure the structural stability and performance of the product. The slitting process is to cut the compacted nursing pads into preset sizes and shapes to meet the needs of different users.

[0003] In the existing nursing pad slitting and compacting machines, most of them use fixed knives, and the nursing pads are slit in a cyclic manner as the nursing pads are conveyed. However, the fixed knives are mostly installed by fixing screws and can only be installed in specified positions. In addition, the knives may collide with the nursing pads and other components during long-term use, and will slit the nursing pads after colliding with the nursing pads. However, after slitting the nursing pads, they will collide with other components to complete the cutting of the nursing pads. In the long-term use, the knives will collide and wear. Once the knives are worn, it will affect the slitting efficiency of the nursing pads. Therefore, the present application proposes a four-corner positioning and slitting device for nursing pads. Summary of the invention

[0004] The object of the present invention is to provide a four-corner positioning and cutting device for a nursing pad to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a four-corner positioning and slitting device for a nursing pad, comprising two supporting uprights, wherein the outer wall of one of the supporting uprights is rotatably connected to a vertical rod, the vertical rod penetrates the outer walls of the two supporting uprights, and the outside of the vertical rod is fixedly connected to two active pulleys, a driving motor is installed on one side of the supporting upright, and the output shaft of the driving motor is fixedly connected to one end of the vertical rod, and the adjacent sides of the two supporting uprights are rotatably connected to a hot pressing roller, a negative pressure adsorption wheel and a slitting wheel through multiple supporting rotating shafts, the slitting composite material is initially transported between the negative pressure adsorption wheel and the slitting wheel and adsorbed onto the negative pressure adsorption wheel, four positioning stickers are attached to the slitting composite material, and the positioning stickers and the composite material are adsorbed and transported by the negative pressure adsorption wheel The positioning sticker and the composite material are cut to a specified length after passing through the slitting wheel. After slitting, they are transported by the negative pressure adsorption wheel transfer wheel to be compounded with the outer layer of the nursing pad, and are compacted and compounded by the hot pressing roller. The hot pressing roller, the negative pressure adsorption wheel and the slitting wheel on the side close to the supporting vertical plate all penetrate the outer wall of the supporting vertical plate and are fixedly connected with a driven pulley. Multiple driven pulleys are connected to the two driving pulleys through belt transmission. The outsides of the negative pressure adsorption wheel and the slitting wheel are connected with a supply component. Multiple movable storage slots are opened on the outside of the slitting wheel. The inner bottom wall of the movable storage slot is fixedly connected with an elastic rubber seat. The elastic rubber seat is fixedly connected with a mounting seat on the side away from the bottom wall of the movable storage slot. The inside of the mounting seat is connected with a slitting knife through a positioning component.

[0006] Preferably, a diverter cavity is provided inside the slitting wheel, an air intake cavity is integrally formed inside the elastic rubber seat, a first electrically controlled valve is connected to the outside of the elastic rubber seat, an end of the first electrically controlled valve away from the elastic rubber seat passes through the inner wall of the slitting wheel and is connected to the diverter cavity, the diverter cavity is connected to the supply assembly, and the elastic rubber seat with the air intake cavity integrally formed inside is initially in a condensed state.

[0007] Preferably, the supply component includes an air pump, which is fixedly connected to the supporting plate, and the air outlet of the air pump is connected to an air pipe, and the end of the air pipe away from the air pump is connected to a diversion air box, the interior of the diversion air box is an air inlet cavity and a negative pressure adsorption cavity, the air pipe is connected to the air inlet cavity, the outside of the diversion cavity is connected to a first rotary joint, the end of the first rotary joint away from the diversion cavity is connected to a delivery pipe, and the delivery pipe is connected to the air inlet cavity of the diversion air box.

[0008] Preferably, the supply component also includes a second rotary joint, which is rotatably connected to the negative pressure adsorption wheel, the air outlet of the second rotary joint is connected to a negative pressure circulation pipe, the end of the negative pressure circulation pipe away from the second rotary joint is connected to the negative pressure adsorption cavity of the diversion air box, the air inlet of the air pump is connected to a two-way valve, one of the air inlets of the two-way valve is connected to the negative pressure adsorption pipe, the end of the negative pressure adsorption pipe away from the two-way valve is connected to the negative pressure adsorption cavity of the diversion air box, and the other air inlet of the two-way valve is connected to a second electrically-controlled valve.

[0009] Preferably, a plurality of magnetic sheets are integrally formed on the inner wall of the elastic rubber seat, and the plurality of magnetic sheets are divided into an upper magnetic group and a lower magnetic group, and the upper magnetic group and the lower magnetic group are attracted to each other when the elastic rubber seat is in a condensed state.

[0010] Preferably, a through hole is provided on the outside of the magnetic sheet, and an iron elastic sheet is fixedly connected to the outside of the magnetic sheet, the iron elastic sheet is used to seal the through hole to prevent the gas inside the elastic rubber seat from pouring out through the through hole, and the through hole is used to lift the iron elastic sheet when the gas pressure inside the elastic rubber seat reaches a specified threshold, thereby discharging excess gas through the through hole.

[0011] Preferably, a placement groove is provided on the outside of the magnetic attraction sheet, and the iron elastic sheet is engaged in the inside of the placement groove, and the placement groove is used to provide a placement space for the iron elastic sheet to ensure that the iron elastic sheet is flush with the outer wall of the elastic rubber seat.

[0012] Preferably, an outer cover is clamped on the outer wall of the slitting wheel, and a fixing bolt is threadedly connected to the outer surface of the outer cover, and one end of the fixing bolt close to the slitting wheel is threadedly connected to the slitting wheel.

[0013] Preferably, a plurality of recessed grooves are formed on the outside of the mounting seat, and an adjusting positioning bolt seat is connected to the internal threads of the recessed grooves, and one end of the adjusting positioning bolt seat close to the slitting knife abuts against the outer wall of the slitting knife.

[0014] Preferably, a screw adjustment seat is installed on the side of the support vertical plate away from the hot pressing roller, and an auxiliary pulley is rotatably connected to the screw adjustment seat, and the auxiliary pulley is in contact with the transmission belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, the nursing mattress after transmission and slitting is adsorbed and transmitted by the negative pressure adsorption wheel, and after the adsorption transmission, the slitting wheel in the rotating process is used to drive the slitting knife to slit the nursing mattress composite material, and in the slitting process, when the slitting knife completes slitting the nursing mattress, the slitting knife will slightly hit the outside of the negative pressure adsorption wheel, and when the slitting knife hits the negative pressure adsorption wheel, force will be generated. After the force is generated, the slitting knife will squeeze the elastic rubber seat due to the force, and the elastic rubber seat will be deformed after being squeezed by the force, thereby driving the slitting knife to retract. After retracting, the hard collision phenomenon between the slitting knife and the negative pressure adsorption wheel is reduced, the collision and wear phenomenon of the slitting knife is reduced, and the service life of the slitting knife is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the slitting wheel and the outer cover in an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the mounting seat and the elastic rubber seat in an embodiment of the present invention;

[0020] Figure 4 It is a schematic cross-sectional structural diagram of a slitting wheel in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the hollow state structure of the elastic rubber seat in an embodiment of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the elastic rubber seat in the expanded state in an embodiment of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the magnetic attraction sheet in an embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the iron elastic sheet in an embodiment of the present invention;

[0025] Fig. 9 It is a cross-sectional structural schematic diagram of the diverter air box in an embodiment of the present invention;

[0026] Fig.10 For the embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of area A in .

[0027] In the figure: 100, supporting plate; 101, supporting rotating shaft; 102, driven pulley; 103, driving motor; 104, driving pulley; 105, pole; 106, hot pressing roller; 107, negative pressure adsorption wheel; 108, slitting wheel; 109, elastic rubber seat; 110, mounting seat; 111, slitting knife; 112, mobile storage tank; 200, first rotating joint; 201, air pump; 202, air pipe; 203, diversion air box; 204, conveying pipeline; 205, diversion cavity; 206, first electric control valve; 300, magnetic suction sheet; 400, through hole; 401, iron elastic sheet; 402, placement groove; 500, two-way valve; 501, second electric control valve; 502, negative pressure adsorption tube; 503, second rotary joint; 504, negative pressure flow tube; 600, screw adjustment seat; 700, outer cover; 701, fixing bolt; 800, recessed groove; 801, adjustment positioning bolt seat. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: Figure 1-Figure 3As shown, the present application provides a four-corner positioning and slitting device for a nursing pad, including two supporting uprights 100, wherein the outer wall of one of the supporting uprights 100 is rotatably connected to a vertical rod 105, the vertical rod 105 penetrates the outer walls of the two supporting uprights 100, and the outside of the vertical rod 105 is fixedly connected to two active pulleys 104, and a driving motor 103 is installed on one side of one supporting upright 100, and the output shaft of the driving motor 103 is fixedly connected to one end of the vertical rod 105. The adjacent sides of the two supporting uprights 100 are rotatably connected to a hot pressing roller 106, a negative pressure adsorption wheel 107 and a slitting wheel 108 through multiple supporting rotating shafts 101. When it is necessary to perform four-corner positioning and slitting of the composite material, the slit composite material is initially transported between the negative pressure adsorption wheel 107 and the slitting wheel 108 and adsorbed onto the negative pressure adsorption wheel 107, and four positioning stickers are attached to the slit composite material, and the positioning stickers and the composite material are adsorbed by the negative pressure adsorption wheel 107 After conveying, the positioning sticker and the composite material are cut to a specified length after passing through a slitting wheel 108. After slitting, they are conveyed by a negative pressure adsorption wheel 107 and transferred to the outer layer of the nursing pad, and compacted and compounded by a hot pressing roller 106. The hot pressing roller 106, the negative pressure adsorption wheel 107 and the slitting wheel 108 on the side close to the supporting vertical plate 100 all penetrate the outer wall of the supporting vertical plate 100 and are fixedly connected with a driven pulley 102. Multiple driven pulleys 102 are connected to two active pulleys 104 by belt transmission. The outsides of the negative pressure adsorption wheel 107 and the slitting wheel 108 are connected with supply components. Multiple mobile storage grooves 112 are opened on the outside of the slitting wheel 108. The inner bottom wall of the mobile storage groove 112 is fixedly connected with an elastic rubber seat 109. The elastic rubber seat 109 is fixedly connected with a mounting seat 110 on the side away from the bottom wall of the mobile storage groove 112. The inside of the mounting seat 110 is connected with a slitting knife 111 through a positioning component.

[0030] Specifically, during use, the driving motor 103 is started to drive the vertical rod 105 to rotate. When the vertical rod 105 is rotating, it will drive the two active pulleys 104 to rotate. During the rotation of the two active pulleys 104, multiple driven pulleys 102 are driven to rotate through belts. During the rotation of multiple driven pulleys 102, the hot pressing roller 106, the negative pressure adsorption wheel 107 and the slitting wheel 108 are respectively driven to rotate. During the rotation of the hot pressing roller 106, the negative pressure adsorption wheel 107 and the slitting wheel 108, when the four-corner positioning for slitting is not required and normal slitting is required, the staff can place the outer layer of the nursing mattress between the hot pressing roller 106 and the negative pressure adsorption wheel 107 for transmission, and place the composite material of the nursing mattress between the negative pressure adsorption wheel 107 and the slitting wheel 108. When the composite material of the nursing mattress is transmitted to the negative pressure When between the adsorption wheel 107 and the slitting wheel 108, the slitting knife 111 located on the slitting wheel 108 will cut the composite material. After the composite material is cut, a negative pressure adsorption force is generated on the outside of the negative pressure adsorption wheel 107 through the supply component. The composite material of the nursing pad is adsorbed to the outer wall of the negative pressure adsorption wheel 107 through the generated negative pressure adsorption force and gradually moves upward. When gradually moving upward, it will fit with the outer layer of the nursing mattress between the negative pressure adsorption wheel 107 and the hot pressing roller 106 during the transmission process. In the case of gradual fitting, the mattress composite material and the outer layer of the mattress are fitted again by compaction by the hot pressing roller 106, and the compaction and slitting effect is completed as a whole. In the overall slitting process, the rotation speed of the slitting wheel 108 and the extension amount of the slitting knife 111 are controlled, so as to control the slitting length of the nursing mattress, and when slitting knives of different sizes are installed, it can also be used for the slitting of nursing pads of different widths.

[0031] Furthermore, in the slitting wheel 108, the slitting knife 111 is installed on the elastic rubber seat 109 through the mounting seat 110. In the process of slitting the nursing pad material, when the slitting knife 111 completes the slitting of the nursing pad composite material, the traditional knife will produce a slight collision with the negative pressure adsorption wheel 107 after the cutting is completed, and the traditional knife is fixed at a specified position by a screw. In the process of continuous slight collision, the traditional knife will not be buffered in time, so it will gradually wear out during the slitting process. In the present application, the mounting seat connected by the elastic rubber seat 109 After the mounting seat 110 and the slitting knife 111 have completed slitting the nursing mattress composite material, when the slitting knife 111 collides with the outside of the negative pressure adsorption wheel 107, the slitting knife 111 will be squeezed. When the front of the slitting knife 111 collides with the negative pressure adsorption wheel 107 and is subjected to force, it will squeeze the elastic rubber seat 109 to produce deformation. In the process of deformation, the slitting knife 111 will be driven to retract, thereby reducing the hard collision between the slitting knife 111 and the negative pressure adsorption wheel 107, reducing the excessive wear of the tool due to the hard collision, and extending the service life of the slitting knife 111.

[0032] like Figure 3 As shown, a plurality of recessed grooves 800 are formed on the outside of the mounting seat 110 , and an adjusting and positioning bolt seat 801 is threadedly connected to the inside of the recessed groove 800 . One end of the adjusting and positioning bolt seat 801 close to the slitting knife 111 abuts against the outer wall of the slitting knife 111 .

[0033] Specifically, during use, the mounting base 110 is U-shaped as a whole, and the slitting knife 111 is installed inside the U-shaped groove. The staff can place the slitting knife 111 to different groove depths as needed. After placing it at different groove depths, the adjusting positioning bolt seat 801 is threadedly connected to the inside of different recessed grooves 800, thereby fixing and limiting the slitting knife 111 at different groove depths.

[0034] like Figure 1 As shown, a screw adjustment seat 600 is installed on the side of the support plate 100 away from the hot pressing roller 106, and an auxiliary pulley is rotatably connected to the screw adjustment seat 600, and the auxiliary pulley is in contact with the transmission belt.

[0035] Specifically, during use, the threaded rod outside the screw adjustment seat 600 is rotated to drive the auxiliary pulley to move, and the auxiliary pulley fits the transmission belt. The tension of the transmission belt can be adjusted by adjusting the position of the auxiliary pulley.

[0036] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the prior art, in the present embodiment, the nursing mattress after transmission and slitting is adsorbed and transmitted by the negative pressure adsorption wheel 107, and after the adsorption transmission, the slitting wheel 108 in the rotating process is used to drive the slitting knife 111 to slit the nursing mattress composite material, and in the slitting process, when the slitting knife 111 completes the slitting of the nursing mattress, the slitting knife 111 will slightly hit the outside of the negative pressure adsorption wheel 107, and when the slitting knife 111 hits the negative pressure adsorption wheel 107, it will be subjected to force. After the force is generated, the slitting knife 111 will squeeze the elastic rubber seat 109 due to the force, and the elastic rubber seat 109 will be deformed after being squeezed by the force, thereby driving the slitting knife 111 to retract, and after retracting, the hard collision phenomenon between the slitting knife 111 and the negative pressure adsorption wheel 107 is reduced, the collision and wear phenomenon of the slitting knife 111 is reduced, and the service life of the slitting knife 111 is extended.

[0037] Embodiment 2: Considering that during use, the elastic rubber seat 109 will pull the slitting knife 111 to a specified position, and the positions of multiple slitting knives 111 are also in a constant position, when some slitting knives 111 are not needed, the traditional method is to disassemble the slitting knife 111 and install it when it is needed, which is troublesome as a whole. Therefore, in view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0038] like Figure 1-Figure 10 As shown, a diverter cavity 205 is provided inside the slitting wheel 108, an air intake cavity is integrally formed inside the elastic rubber seat 109, and a first electrically controlled valve 206 is connected to the outside of the elastic rubber seat 109. One end of the first electrically controlled valve 206 away from the elastic rubber seat 109 passes through the inner wall of the slitting wheel 108 and is connected to the diverter cavity 205. The diverter cavity 205 is connected to the supply assembly, and the elastic rubber seat 109 integrally formed with the air intake cavity is initially in a condensed state.

[0039] like Figure 4 As shown, during use, the elastic rubber seat 109, which is in a condensed state at the initial stage, can drive the slitting knife 111 to condense as a whole inside the movable storage groove 112, so that the slitting knife 111 will not contact the material to be cut and the negative pressure adsorption wheel 107 during the rotation of the slitting wheel 108.

[0040] Furthermore, when it is necessary to use the slitting knife 111 to contact the material for cutting, it is only necessary to inject gas into the diversion cavity 205 through the supply component. In the process of continuously injecting gas into the diversion cavity 205, the elastic rubber seat 109 will expand. In the process of the elastic rubber seat 109 expanding, the mounting seat 110 will be pushed to slide out of the movable storage slot 112. In the process of sliding the movable storage slot 112 out, the user can push the slitting knife 111 to the specified position according to the needs. After pushing the slitting knife 111 to the specified position, the slitting knife 111 can realize the slitting of the composite material.

[0041] Furthermore, through the setting of multiple first electrically-controlled valves 206, when it is necessary to cut composite materials of different lengths, the staff can open the local first electrically-controlled valve 206, so as to allow gas to enter only the local elastic rubber seat 109, thereby pushing part of the slitting knife 111 to the specified position, reducing the number of slitting knives 111 used and increasing the overall cutting distance.

[0042] Furthermore, during the cutting process, the elastic rubber seat 109 is filled with gas, and can further retract during the collision with the negative pressure adsorption wheel 107 after cutting the material, thereby reducing the wear of the slitting knife 111. Moreover, because the interior is filled with gas, the slitting knife 111 always has a force pressing in the cutting direction during the cutting process, thereby facilitating the cutting of the composite material.

[0043] like Figure 1-Figure 10 As shown, the supply component includes an air pump 201, which is fixedly connected to the supporting plate 100. The air outlet of the air pump 201 is connected to an air pipe 202. The end of the air pipe 202 away from the air pump 201 is connected to a diverter air box 203. The interior of the diverter air box 203 is an air inlet cavity and a negative pressure adsorption cavity. The air pipe 202 is connected to the air inlet cavity. The outside of the diverter cavity 205 is connected to a first rotary joint 200. The end of the first rotary joint 200 away from the diverter cavity 205 is connected to a delivery pipe 204. The delivery pipe 204 is connected to the air inlet cavity of the diverter air box 203.

[0044] Specifically, during use, in the supply component, gas is injected into the gas pipe 202 by starting the air pump 201. In the process of injecting gas into the gas pipe 202, the gas will accumulate in the diverter gas box 203. When the gas enters the diverter gas box 203, it will be transported to the first rotary joint 200 through the two delivery pipes 204. The first rotary joint 200 can transport the gas to the diverter cavity 205 during the rotation of the slitting wheel 108. When the gas is transported to the diverter cavity 205, it will be temporarily stored in the diverter cavity 205. When the staff needs to adjust the position of one or more slitting knives 111, the first electric control valve 206 is opened to transport the gas to the elastic rubber seat 109. After the gas enters the elastic rubber seat 109, it will drive the slitting knife 111 to adjust its position.

[0045] like Figure 1-Figure 10 As shown, the supply component also includes a second rotary joint 503, which is rotatably connected to the negative pressure adsorption wheel 107, and the air outlet of the second rotary joint 503 is connected to a negative pressure circulation pipe 504, and the end of the negative pressure circulation pipe 504 away from the second rotary joint 503 is connected to the negative pressure adsorption cavity of the diversion air box 203, and the air inlet of the air pump 201 is connected to a two-way valve 500, and one of the air inlets of the two-way valve 500 is connected to a negative pressure adsorption pipe 502, and the end of the negative pressure adsorption pipe 502 away from the two-way valve 500 is connected to the negative pressure adsorption cavity of the diversion air box 203, and the other air inlet of the two-way valve 500 is connected to a second electrically controlled valve 501.

[0046] Specifically, during use, by starting the air pump 201 and opening the two-way valve 500, the gas inside the negative pressure adsorption cavity of the diverter air box 203 can be sucked into the negative pressure adsorption tube 502, and when the gas inside the negative pressure adsorption cavity of the diverter air box 203 disappears and the suction force still exists, the gas inside the negative pressure adsorption wheel 107 is extracted through the negative pressure circulation tube 504 in cooperation with the second rotary joint 503. When the gas inside the negative pressure adsorption wheel 107 is extracted and the composite material is adhered to the outside, the composite material will be adsorbed by the negative pressure adsorption holes formed on the outside of the negative pressure adsorption wheel 107, thereby driving the composite material to adhere to the outside of the negative pressure adsorption wheel 107 and continue to rotate and transport.

[0047] Furthermore, during the negative pressure suction process, the additional air intake stroke can be controlled by opening or closing the second electrically controlled valve 501 .

[0048] like Figure 2 As shown, an outer cover 700 is clamped on the outer wall of the slitting wheel 108 , and a fixing bolt 701 is threadedly connected to the outer surface of the outer cover 700 . One end of the fixing bolt 701 close to the slitting wheel 108 is threadedly connected to the slitting wheel 108 .

[0049] Specifically, during use, the staff can remove the fixing bolts 701 and separate the outer cover 700 from the slitting wheel 108, so that the mobile storage slot 112 is exposed on one side. After opening one side of the mobile storage slot 112, the components inside the mobile storage slot 112 can be pulled out for inspection.

[0050] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the first embodiment, in the present embodiment, by continuously injecting gas into the interior of the elastic rubber seat 109, the elastic rubber seat 109 is expanded. When the elastic rubber seat 109 expands, the expanded elastic rubber seat 109 can drive the slitting knife 111 to move to the specified position, so that the position of the slitting knife 111 is adjusted by the elastic rubber seat 109 filled with gas inside, and the slitting knife 111 is supported, and the position can be adjusted while the slitting is achieved as a whole. When the slitting knife 111 is not in use, the slitting knife 111 is adjusted to the inside of the movable storage slot 112 by the condensation of the elastic rubber seat 109 to be hidden. It can be hidden when it is not needed. When it is needed, it only needs to be pushed to the specified position for use, which is more convenient as a whole.

[0051] Embodiment 3: Considering that the slitting wheel 108 is continuously rotating during use, the slitting wheel 108 will generate inertial swing force during the continuous rotation. In the process of generating inertial swing force, the hollow elastic rubber seat 109 may not be able to pull the slitting knife 111 tightly inside the mobile storage slot 112 under the swing of inertial force, causing the slitting knife 111 to be thrown out of the mobile storage slot 112 and collide with other components. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0052] like Figure 6 As shown, the inner wall of the elastic rubber seat 109 is integrally formed with a plurality of magnetic sheets 300 , and the plurality of magnetic sheets 300 are divided into an upper magnetic group and a lower magnetic group. The upper magnetic group and the lower magnetic group are mutually attracted when the elastic rubber seat 109 is in a condensed state.

[0053] Specifically, during use, when the elastic rubber seat 109 is in a condensed state, the upper magnetic group and the lower magnetic group divided by the multiple magnetic sheets 300 inside the elastic rubber seat 109 will be attracted to each other, and the mutual attraction can keep the elastic rubber seat 109 together at all times. Even when the slitting wheel 108 continues to rotate and generates a large inertial force, the elastic rubber seat 109 magnetically attracted and gathered together by the multiple magnetic sheets 300 will not be deformed due to the inertial force and the slitting knife 111 will not be thrown out, thereby ensuring that the mounting seat 110 and the slitting knife 111 are always kept inside the movable storage slot 112 when the slitting knife 111 is not in use, thereby ensuring overall stability.

[0054] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the second embodiment, in the present embodiment, a plurality of magnetic suction plates 300 divided into an upper magnetic suction group and a lower magnetic suction group can be mutually adsorbed when the elastic rubber seat 109 is condensed and drives the slitting knife 111 to be stored in the movable storage slot 112, thereby further increasing the condensed connection state of the elastic rubber seat 109, ensuring that the slitting knife 111 can still remain in the movable storage slot 112 when the slitting wheel 108 continues to rotate and generates inertia force, and will not be thrown out to cause a secondary collision.

[0055] Embodiment 4: Considering that when too much gas is filled into the elastic rubber seat 109, not only will the slitting knife 111 extend too much, but also when the slitting knife 111 extends too much, it will cause excessive contact and collision between the slitting knife 111 and the negative pressure adsorption wheel 107. When there is excessive adsorption and collision between the slitting knife 111 and the negative pressure adsorption wheel 107, it will still cause wear of the slitting knife 111 or the adsorption wheel. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0056] like Figure 8 As shown, a through hole 400 is opened on the outside of the magnetic attraction sheet 300, and an iron elastic sheet 401 is fixedly connected to the outside of the magnetic attraction sheet 300. The iron elastic sheet 401 is used to block the through hole 400 to prevent the gas inside the elastic rubber seat 109 from pouring out through the through hole 400. The through hole 400 is used to lift the iron elastic sheet 401 when the gas pressure inside the elastic rubber seat 109 reaches a specified threshold, thereby discharging excess gas through the through hole 400.

[0057] Specifically, during use, when the elastic rubber seat 109 is filled with too much gas, the elastic rubber seat 109 will drive the slitting knife 111 to over-extend, and when the slitting knife 111 is in an over-extended state, the slitting knife 111 will excessively collide with the negative pressure adsorption wheel 107. When the excessive collision occurs, if a large amount of gas is still stored in the elastic rubber seat 109, the large amount of gas will support the elastic rubber seat 109, causing the elastic rubber seat 109 to drive the slitting knife 111 to excessively collide with the negative pressure adsorption wheel 107. Through the arrangement of the iron elastic sheet 401 and the through hole 400, too much gas is filled in the elastic rubber seat 109 and an excessive collision is generated between the slitting knife 111 and the negative pressure adsorption wheel 107. During the collision, the slitting knife 111 that collides excessively with the negative pressure adsorption wheel 107 will squeeze the elastic rubber seat 109 due to the collision force. The elastic rubber seat 109 will shrink and deform after being squeezed. When the elastic rubber seat 109 shrinks, the internal space is reduced. When the internal space is reduced, the air pressure stored in the elastic rubber seat 109 will increase. When the air pressure inside the elastic rubber seat 109 increases to a specified level, the iron elastic sheet 401 will be pushed open, thereby spraying excess gas through the through hole 400. After the excess gas is sprayed out, the elastic rubber seat 109 with reduced internal air pressure will reduce excessive support for the slitting knife 111, thereby avoiding excessive collision between the slitting knife 111 and the negative pressure adsorption wheel 107.

[0058] Furthermore, in the initial state, the iron elastic sheet 401 which is made of iron and has elasticity will be absorbed by the magnetic sheet 300, so as to be tightly attached to the outer wall of the magnetic sheet 300, and the through hole 400 can be blocked when being tightly attached to the outer wall of the magnetic sheet 300.

[0059] like Figure 8 As shown, a placement groove 402 is provided on the outside of the magnetic attraction sheet 300 , and the iron elastic sheet 401 is engaged in the inside of the placement groove 402 . The placement groove 402 is used to provide a placement space for the iron elastic sheet 401 to ensure that the iron elastic sheet 401 is flush with the outer wall of the elastic rubber seat 109 .

[0060] Specifically, the iron elastic sheet 401 can be placed by setting the placement groove 402, so that the elastic rubber seat 109 will not cause scratches and deformation between the iron elastic sheet 401 and the movable storage groove 112 when expanding and contracting up and down.

[0061] Furthermore, the multiple magnetic suction sheets 300 can also be set as electromagnets, and the magnetic force of the electromagnets can be adjusted to control the adsorption strength of the electromagnets on the iron elastic sheet 401. When the iron elastic sheet 401 is not needed to be opened, it is only necessary to strengthen the adsorption strength of the electromagnets on the iron elastic sheet 401, thereby avoiding the iron elastic sheet 401 from being pushed open. Conversely, when the iron elastic sheet 401 needs to be opened, the magnetic force can be actively reduced so that the iron elastic sheet 401 can be easily pushed open to complete the release of gas.

[0062] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment three, in this embodiment, when there is too much gas inside the elastic rubber seat 109 and the slitting knife 111 is squeezed, the slitting knife 111 will drive the mounting seat 110 to squeeze the elastic rubber seat 109. When the elastic rubber seat 109 is squeezed, the internal space shrinks and the air pressure increases. When the air pressure increases, the iron elastic sheet 401 adsorbed by the magnetic sheet 300 can be pushed open, and the gas can be released through the through hole 400. After the gas is released, the internal air pressure of the elastic rubber seat 109 becomes less, thereby reducing excessive support for the slitting knife 111, thereby avoiding excessive collision between the slitting knife 111 and the negative pressure adsorption wheel 107.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A four-corner positioning and cutting device for a nursing pad, comprising two supporting uprights (100), wherein the outer wall of one of the supporting uprights (100) is rotatably connected to a vertical rod (105), the vertical rod (105) passes through the outer walls of the two supporting uprights (100), the outside of the vertical rod (105) is fixedly connected to two driving pulleys (104), a driving motor (103) is installed on one side of one of the supporting uprights (100), and the output shaft of the driving motor (103) is fixedly connected to one end of the vertical rod (105), characterized in that: One side of the two adjacent support uprights (100) is rotatably connected to a hot pressing roller (106), a negative pressure adsorption wheel (107) and a slitting wheel (108) via a plurality of support rotating shafts (101). The slit composite material is initially transported between the negative pressure adsorption wheel (107) and the slitting wheel (108) and adsorbed onto the negative pressure adsorption wheel (107). Four positioning stickers are attached to the slit composite material. The positioning stickers and the composite material are adsorbed and transported by the negative pressure adsorption wheel (107). The positioning stickers and the composite material are slit to a specified length after passing through the slitting wheel (108). After slitting, they are transported by the negative pressure adsorption wheel (107) and the transfer wheel to be compounded with the outer layer of the nursing pad, and are compacted and compounded by the hot pressing roller (106). The hot pressing roller (106), the negative pressure adsorption wheel (107) and The side of the slitting wheel (108) close to the supporting upright plate (100) penetrates the outer wall of the supporting upright plate (100) and is fixedly connected to a driven pulley (102); the plurality of driven pulleys (102) are connected to the two driving pulleys (104) via a belt transmission; the outsides of the negative pressure adsorption wheel (107) and the slitting wheel (108) are both connected to a supply assembly; the outside of the slitting wheel (108) is provided with a plurality of movable storage grooves (112); the inner bottom wall of the movable storage groove (112) is fixedly connected to an elastic rubber seat (109); the side of the elastic rubber seat (109) away from the bottom wall of the movable storage groove (112) is fixedly connected to a mounting seat (110); the inside of the mounting seat (110) is connected to a slitting knife (111) via a positioning assembly; The inner wall of the elastic rubber seat (109) is integrally formed with a plurality of magnetic attraction sheets (300), the plurality of magnetic attraction sheets (300) being divided into an upper magnetic attraction group and a lower magnetic attraction group, the upper magnetic attraction group and the lower magnetic attraction group being mutually attracted when the elastic rubber seat (109) is in a condensed state; The magnetic attraction sheet (300) is provided with a through hole (400) on the outside, and an iron elastic sheet (401) is fixedly connected to the outside of the magnetic attraction sheet (300). The iron elastic sheet (401) is used to block the through hole (400) to prevent the gas inside the elastic rubber seat (109) from pouring out through the through hole (400). The through hole (400) is used to lift the iron elastic sheet (401) when the gas pressure inside the elastic rubber seat (109) reaches a specified threshold, thereby discharging the excess gas through the through hole (400); The magnetic attraction sheet (300) is provided with a placement groove (402) on the outside, and the iron elastic sheet (401) is engaged with the inside of the placement groove (402). The placement groove (402) is used to provide a placement space for the iron elastic sheet (401) to ensure that the iron elastic sheet (401) is flush with the outer wall of the elastic rubber seat (109).

2. A four-corner positioning and cutting device for a nursing pad according to claim 1, characterized in that: A flow diversion cavity (205) is provided inside the slitting wheel (108), an air intake cavity is integrally formed inside the elastic rubber seat (109), a first electrically controlled valve (206) is connected to the outside of the elastic rubber seat (109), an end of the first electrically controlled valve (206) away from the elastic rubber seat (109) passes through the inner wall of the slitting wheel (108) and is in communication with the flow diversion cavity (205), the flow diversion cavity (205) is in communication with a supply component, and the elastic rubber seat (109) with the air intake cavity integrally formed inside is in a condensed state in its initial state.

3. A four-corner positioning and cutting device for a nursing pad according to claim 2, characterized in that: The supply assembly comprises an air pump (201), the air pump (201) being fixedly connected to the supporting upright plate (100), the air outlet of the air pump (201) being connected to an air delivery pipe (202), the end of the air delivery pipe (202) away from the air pump (201) being connected to a diversion air box (203), the interior of the diversion air box (203) being an air intake cavity and a negative pressure adsorption cavity, the air delivery pipe (202) being connected to the air intake cavity, the outside of the diversion cavity (205) being connected to a first rotary joint (200), the end of the first rotary joint (200) away from the diversion cavity (205) being connected to a delivery pipe (204), the delivery pipe (204) being connected to the air intake cavity of the diversion air box (203).

4. A four-corner positioning and cutting device for a nursing pad according to claim 3, characterized in that: The supply assembly further comprises a second rotary joint (503), wherein the second rotary joint (503) is rotatably connected to the negative pressure adsorption wheel (107), an air outlet of the second rotary joint (503) is connected to a negative pressure circulation tube (504), an end of the negative pressure circulation tube (504) away from the second rotary joint (503) is connected to the negative pressure adsorption cavity of the diversion air box (203), an air inlet of the air pump (201) is connected to a two-way valve (500), one of the air inlets of the two-way valve (500) is connected to a negative pressure adsorption tube (502), an end of the negative pressure adsorption tube (502) away from the two-way valve (500) is connected to the negative pressure adsorption cavity of the diversion air box (203), and the other air inlet of the two-way valve (500) is connected to a second electrically controlled valve (501).

5. The four-corner positioning and cutting device for a nursing pad according to claim 1, characterized in that: An outer cover (700) is clamped onto the outer wall of the slitting wheel (108), and a fixing bolt (701) is threadedly connected to the outer surface of the outer cover (700), and one end of the fixing bolt (701) close to the slitting wheel (108) is threadedly connected to the slitting wheel (108).

6. A four-corner positioning and cutting device for a nursing pad according to claim 1, characterized in that: The mounting seat (110) is provided with a plurality of recessed grooves (800) on the outside, and the internal threads of the recessed grooves (800) are connected to an adjusting positioning bolt seat (801), and one end of the adjusting positioning bolt seat (801) close to the slitting knife (111) abuts against the outer wall of the slitting knife (111).

7. The four-corner positioning and cutting device for a nursing pad according to claim 1, characterized in that: A screw adjustment seat (600) is installed on the side of the support upright plate (100) away from the hot pressing roller (106), and an auxiliary pulley is rotatably connected to the screw adjustment seat (600), and the auxiliary pulley is in contact with the transmission belt.

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