Cutting equipment and technology for water absorption pad

Abstract

The invention provides cutting equipment and a cutting process for a water absorption pad. The cutting equipment comprises a feeding mechanism, a first conveying mechanism, a second conveying mechanism, a longitudinal cutting mechanism, a transverse cutting mechanism and a finished product conveying mechanism, the feeding mechanism, the first conveying mechanism, the longitudinal cutting mechanism, the second conveying mechanism, the transverse cutting mechanism and the finished product conveying mechanism are sequentially arranged on the rack from left to right. According to the cutting equipment and the cutting process for the water absorption pad, the problems that in the related technology, due to repeatability of manual operation of a water absorption pad cutting worker, fatigue is likely to be generated, and the cutting precision and the cutting quality are reduced are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of water absorbent pads, and in particular relates to a cutting device and a cutting process for water absorbent pads. Background Art

[0002] Cutting is a critical step in the production of absorbent pads. Cutting involves cutting large pieces of material into the required size and shape according to design specifications. Proper cutting ensures that the product meets the requirements and improves the user experience. When cutting, it is necessary to consider the characteristics of the material to avoid affecting its absorbency and durability. With fine cutting, the absorbent pad can better perform its role and meet the needs of domestic or industrial use.

[0003] During the production process of absorbent pads, workers need to place the prepared substrate on the cutting board of the paper cutter and cut it based on the ruler on the cutting board. Cutting absorbent pads requires workers to have a high level of operational proficiency, otherwise it is easy to cause errors. Due to the repetitiveness of manual operations of workers in cutting absorbent pads in related technologies, fatigue is easy to occur, resulting in reduced cutting accuracy and quality. In addition, manual cutting can easily lead to unsatisfactory stitching on the four sides of the finished product, which not only affects the appearance of the product, but also causes the absorbent pad to be dried and deformed, resulting in cracks at the fracture.

[0004] In addition, manual cutting is inefficient, especially when mass production is required. Compared with automated equipment, manual operation has limited speed and a higher error rate. This not only increases production costs, but may also affect delivery time. Summary of the invention

[0005] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A cutting device for absorbent pads, comprising a feeding mechanism, a first conveying mechanism, a second conveying mechanism, a longitudinal cutting mechanism, a transverse cutting mechanism and a finished product conveying mechanism;

[0008] The feeding mechanism, the first conveying mechanism, the longitudinal cutting mechanism, the second conveying mechanism, the transverse cutting mechanism and the finished product conveying mechanism are arranged on the frame in sequence from left to right;

[0009] The longitudinal cutting mechanism includes an upper rolling cutting assembly, a lower rolling cutting assembly, a first driving device, a first guide plate and two fixed brackets, the two fixed brackets are symmetrically arranged on the left and right, the two fixed brackets are symmetrically arranged on the frame, the upper rolling cutting assembly and the lower rolling cutting assembly are arranged in parallel between the two fixed brackets, the ends of the upper rolling cutting assembly and the lower rolling cutting assembly are detachably connected to one of the fixed brackets, the upper rolling cutting assembly and the lower rolling cutting assembly rotate, the upper rolling cutting assembly and the lower rolling cutting assembly are used to pass a water absorbent pad, and the first guide plate is used to guide the water absorbent pad after longitudinal cutting.

[0010] Furthermore, the upper rolling cutting assembly includes a roller shaft, two fixed plates and multiple cutters, the two fixed plates are symmetrically arranged at the left and right ends of the roller shaft, the fixed plates are detachably connected to the fixed bracket, and the multiple cutters are evenly distributed along the roller shaft to form a first cutting array. The corresponding lower rolling cutting assembly has the same structure as the upper rolling cutting assembly, and the cutters of the lower rolling cutting assembly form a second cutting array along the circumference of the roller shaft, and the cutters of the first cutting array and the cutters of the second cutting array are in a spatially staggered correspondence.

[0011] Furthermore, the longitudinal cutting mechanism also includes two adjustment mechanisms for adjusting the distance between the upper rolling cutting assembly and the lower rolling cutting assembly. Each of the upper rolling cutting assemblies is correspondingly provided with one adjustment mechanism. The adjustment mechanism includes two adjustment top screws. The two adjustment top screws are arranged in parallel on the fixed plate. The adjustment top screws are threadedly matched with the fixed plate. The bottom of the adjustment top screw passes through the fixed plate, and the bottom of the adjustment top screw abuts against the fixed plate of the lower rolling cutting assembly.

[0012] Furthermore, the longitudinal cutting mechanism also includes a waste discharge mechanism, which includes a mounting block, a second driving device, two driving roller assemblies, two driven roller assemblies and two pulling back devices. The two driving roller assemblies are symmetrically arranged on the left and right sides of the mounting block, and each of the driving roller assemblies is connected to the mounting block. A base plate is provided between the two fixed brackets, and two waste discharge holes are symmetrically arranged on the base plate. A driving roller assembly is correspondingly arranged directly below each waste discharge hole. The second driving device is used to drive the two driving roller assemblies to rotate, and each of the driving roller assemblies is connected to the driven roller assembly through a pulling back device. The driving roller assembly and the driven roller assembly are used to discharge waste.

[0013] Furthermore, the driving roller assembly includes a driving roller and two first mounting frames, the two first mounting frames are symmetrically arranged on the left and right sides of the driving roller, the driving rollers of the two driving roller assemblies are connected, the output end of the second driving device is connected to the end of a driving roller of a driving roller assembly, and the bottom of the first mounting frame located on the inner side is detachably connected to the mounting block.

[0014] Furthermore, the driven roller assembly includes a driven roller, two connecting rods and two second mounting frames, the two second mounting frames are symmetrically arranged on the left and right sides of the driven roller, one second mounting frame is hinged to the first mounting frame on the outside of the driving roller assembly, and the other second mounting frame is hinged to the mounting block, and the two second mounting frames are connected by two connecting rods, one of the connecting rods is located at the upper part of the second mounting frame, and the other connecting rod is located at the bottom of the second mounting frame.

[0015] Furthermore, the pull-back device includes a tension spring and two fixing bolts, one fixing bolt is arranged on the first mounting frame, and the other fixing bolt is arranged on the second mounting frame, and the front and rear ends of the tension spring are respectively connected to one of the fixing bolts.

[0016] Furthermore, it also includes a material caching mechanism, which is arranged between the loading mechanism and the first conveying mechanism. The material caching mechanism includes a material carrier, a vertical pole, two cross bars and two through-beam sensors. The material carrier is used to place cached materials. The ends of the two cross bars are connected to the vertical poles. One of the through-beam sensors is arranged on each cross bar, one of the through-beam sensors is located above the material carrier, and the other of the through-beam sensors is arranged below the material carrier. The ends of the cross bars can be connected to the vertical poles at different heights.

[0017] Furthermore, the cross-cutting mechanism includes a cutter cylinder assembly, an upper cross-cutting knife, a lower cross-cutting knife and a second guide plate. The output end of the cutter cylinder assembly is connected to the upper cross-cutting knife, the lower cross-cutting knife is arranged below the upper cross-cutting knife, and the second guide plate is used to guide the absorbent pad after cutting.

[0018] A cutting process for a water-absorbing pad, when using the above-mentioned cutting device, comprises the following steps:

[0019] Step 1: Pre-treat the absorbent pad. The atomization system uses high pressure to atomize the liquid reagent into tiny droplets of 30-50μm to ensure that the reagent evenly covers the surface of the absorbent pad. The semi-dry process controls the atomization degree (i.e., droplet particle size) and the humidity in the atomization chamber to keep the absorbent pad moist but not fully saturated, avoiding material deformation caused by excessive infiltration.

[0020] Step 2: Install a feeding mechanism, a first conveying mechanism, a longitudinal cutting mechanism, a second conveying mechanism, a transverse cutting mechanism and a finished product conveying mechanism on the frame from left to right, and the feeding mechanism feeds the pre-treated absorbent pad;

[0021] Step 3: The absorbent pad enters the first conveying mechanism through the material buffer mechanism, and the transmission path is corrected by the transition conveying channel, and longitudinal cutting is performed. The first driving device drives the upper and lower rolling cutting components to rotate synchronously in opposite directions, and the staggered cutting array performs continuous longitudinal cutting on the absorbent pad to form a strip-shaped semi-finished product with a preset width;

[0022] Step 4: The second driving device drives the driving roller assembly to rotate, driving the driven roller assembly to form a waste traction force, and the scraps produced by cutting fall into the gap between the driving roller and the driven roller through the waste discharge hole of the bottom plate, and the tension spring of the pull-back device maintains a constant scrap traction tension;

[0023] Step 5: The second conveying mechanism conveys the semi-finished strip after longitudinal cutting to the cross-cutting station, and the cutter cylinder assembly pushes the upper cross-cutting knife downward to cooperate with the lower cross-cutting knife to complete the cross-cutting;

[0024] Step 6: The cut independent water-absorbing pad is guided to the finished product conveying mechanism via the second guide plate.

[0025] Compared with the prior art, the cutting device and cutting process for the water-absorbing pad described in the present invention have the following advantages:

[0026] 1. The cutters of the upper rolling cutting assembly and the lower rolling cutting assembly are in a spatially staggered correspondence, forming a continuous "cutting-avoiding" motion trajectory. This allows the cutting process to be seamlessly connected, avoiding the intermittent pauses of traditional single-row cutters, and achieving high-speed continuous longitudinal cutting. The adjustment mechanism uses double adjustment screws to achieve precise adjustment of the spacing between the upper and lower rolling cutting assemblies to meet the cutting requirements of absorbent pads of different thicknesses. The threaded adjustment screw and fixed plate combination can compensate for the gap expansion caused by tool wear during long-term use, extending the equipment maintenance cycle; the first drive device drives the upper and lower rolling cutting assemblies to rotate synchronously in opposite directions to ensure that the upper and lower blades have a uniform shearing effect on the material during cutting.

[0027] 2. A driving roller assembly is set just below the waste discharge hole, and the negative pressure generated by the falling waste and the rotation of the driving roller is used to form a coordinated waste discharge force, thereby improving the waste removal efficiency. The symmetrically arranged driving roller assembly can simultaneously process the waste generated by cutting on both sides, avoiding equipment overloading caused by unilateral waste discharge. The tension spring of the pull-back device connects the driving roller and the driven roller assembly through the fixing bolts at both ends to keep the traction force constant.

[0028] 3. The crossbar and the beam sensor on the material carrier form a vertical detection channel to monitor the material stacking height in real time. When the material height is lower than the preset threshold, the feeding mechanism is automatically triggered to replenish the material to ensure production continuity. The multi-height connection design between the crossbar end and the vertical pole allows the buffer area capacity to be adjusted according to the material roll diameter to meet the needs of different production rhythms.

[0029] 4. The surface of the absorbent pad is evenly moistened by 30-50μm droplets, so that the cellulose molecular chains swell appropriately and form a pre-oriented structure. Maintain a stable humidity environment in the atomization chamber, guide the molecular chains to arrange in an orderly manner along the cutting direction, and improve the tear resistance of the fiber. The fiber gaps expand evenly in a wet state, and a densified transition layer is formed at the edge of the cut during cutting, which inhibits subsequent drying deformation. The upper and lower cutters form a continuous shearing trajectory with overlapping amounts to meet the stitching alignment accuracy requirements, thereby enabling the four-side stitching of the finished absorbent pad after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 A schematic diagram of a cutting device for a water-absorbing pad according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of a longitudinal cutting mechanism according to an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the combined structure of the upper rolling cutting assembly and the lower rolling cutting assembly according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the waste discharge mechanism according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of the driving roller assembly according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of a cross-cutting mechanism according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic structural diagram of a first conveying mechanism according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic structural diagram of a second conveying mechanism according to an embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the finished product structure of the water-absorbing pad after cutting according to an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Quick-loading air shaft mechanism; 2. Coil turnover tray; 3. Base material coil; 4. Coil unwinding drive mechanism; 5. Material buffer mechanism; 6. First conveying mechanism; 7. Transition conveying channel; 8. Longitudinal cutting mechanism; 9. Waste discharge mechanism; 90. First mounting frame; 91. Driven roller; 92. Second mounting frame; 93. Connecting rod; 94. Tension spring; 95. Mounting block; 96. Driving roller; 10. Second conveying mechanism; 11. Cross-cutting mechanism; 12. Finished product conveying mechanism; 1 3. Upper rolling cutting assembly; 131. fixed plate; 14. lower rolling cutting assembly; 142. first guide plate; 143. bottom plate; 1431. waste discharge hole; 15. frame assembly; 16. upper cutter; 17. lower cutter; 18. cutter cylinder assembly; 19. second transmission belt; 20. first hinge mechanism; 21. first lifting mechanism; 22. first conveyor belt; 23. third conveyor belt; 24. fourth conveyor belt; 25. second hinge mechanism; 26. second lifting mechanism. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0046] A cutting device for absorbent pads, such as Figure 1 As shown, it includes a feeding mechanism, a first conveying mechanism 6, a second conveying mechanism 10, a longitudinal cutting mechanism 8, a transverse cutting mechanism 11 and a finished product conveying mechanism 12; the feeding mechanism, the first conveying mechanism 6, the longitudinal cutting mechanism 8, the second conveying mechanism 10, the transverse cutting mechanism 11 and the finished product conveying mechanism 12 are arranged on the frame from left to right in sequence;

[0047] In this embodiment, the loading mechanism is composed of a quick-loading air expansion shaft mechanism 1, a coil turnover tray 2 and a coil unwinding drive machine. The substrate coil 3 is arranged on the coil turnover tray 2, and two sliding rods for auxiliary loading are arranged under the coil turnover tray 2.

[0048] like Figure 2 As shown, the longitudinal cutting mechanism 8 includes an upper rolling cutting assembly 13, a lower rolling cutting assembly 14, a first driving device, a first guide plate 142 and two fixed brackets, the two fixed brackets are symmetrically arranged on the frame, the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14 are arranged side by side between the two fixed brackets, the ends of the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14 are detachably connected to a fixed bracket, the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14 rotate, the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14 are used to pass the absorbent pad, and the first guide plate 142 is used to guide the absorbent pad after longitudinal cutting. It also includes a transition conveying channel 7, which is arranged between the first conveying mechanism 6 and the longitudinal cutting mechanism 8. The cutters of the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14 are in a spatially staggered corresponding relationship, forming a continuous "cutting-avoiding" motion trajectory. The cutting process is connected without gaps, avoiding the intermittent pause of traditional single-row cutters, and realizing high-speed continuous longitudinal cutting. The adjustment mechanism uses a double adjustment screw to achieve precise adjustment of the spacing between the upper and lower rolling cutting assemblies 14 to meet the cutting requirements of absorbent pads of different thicknesses. The threaded adjustment screw is combined with the fixed plate 131 to compensate for the gap expansion caused by tool wear during long-term use, extending the equipment maintenance cycle; the first drive device drives the upper and lower rolling cutting assemblies 14 to rotate synchronously in the opposite direction to ensure that the upper and lower blades have a uniform shearing effect on the material during cutting. The upper and lower cutters 14 form a continuous shearing trajectory with an overlapping amount, which meets the stitching alignment accuracy requirements, and can thus achieve stitching on the four sides of the finished absorbent pad after cutting.

[0049] In this embodiment, the first conveying mechanism 6 has the same structure as the second conveying mechanism 10. The first conveying mechanism 6 includes a first lifting mechanism 21, a first conveyor belt 22, a first drive motor, a second transmission belt 19 and a first hinge mechanism 20. The first drive motor drives the second conveyor belt to rotate, and the first drive motor drives the first conveyor belt 22 to rotate through the first hinge mechanism 20. The output end of the first lifting mechanism 21 is used to drive the first conveyor belt 22 to rise and fall. After the substrate is cut, the outer surface is flat and the relative thickness is consistent. The first conveying mechanism 6 uses a large contact surface to horizontally convey and adjust the thickness of the substrate.

[0050] The second conveying mechanism 10 includes a second lifting mechanism 26, a third conveyor belt 23, a second driving motor, a fourth conveyor belt 24 and a second hinge mechanism 25. The second driving motor drives the third conveyor belt 23 to rotate, and the second driving motor drives the fourth conveyor belt 24 to rotate through the second hinge mechanism 25. The output end of the second lifting mechanism 26 is used to drive the fourth conveyor belt 24 to rise and fall. In this embodiment, the third conveyor belt 23 and the fourth conveyor belt 24 are multiple strip conveyor belts arranged in parallel, the lifting mechanism is an existing one, and the hinge mechanism is a connecting rod 93 structure composed of two synchronous belt ends hinged together; the first driving device and the second driving device are both existing motors;

[0051] like Figure 3 As shown, the upper rolling cutting assembly 13 includes a roller shaft, two fixed plates 131 and multiple cutters. The two fixed plates 131 are symmetrically arranged at the left and right ends of the roller shaft. The fixed plates 131 are detachably connected to the fixed bracket. Multiple cutters are evenly distributed along the roller shaft to form a first cutting array. The corresponding lower rolling cutting assembly 14 has the same structure as the upper rolling cutting assembly 13. The cutters of the lower rolling cutting assembly 14 form a second cutting array along the circumference of the roller shaft. The cutters of the first cutting array and the cutters of the second cutting array are in a spatially staggered corresponding relationship. The longitudinal cutting of the substrate and the closing of the fracture are achieved by shearing and extrusion.

[0052] The longitudinal cutting mechanism 8 also includes two adjustment mechanisms for adjusting the distance between the upper rolling cutting assembly 13 and the lower rolling cutting assembly 14. An adjustment mechanism is correspondingly arranged on the fixed plate 131 of each upper rolling cutting assembly 13. The adjustment mechanism includes two adjustment top screws. The two adjustment top screws are arranged in parallel on the fixed plate 131. The adjustment top screws are threadedly matched with the fixed plate 131. The bottom of the adjustment top screw passes through the fixed plate 131, and the bottom of the adjustment top screw is against the fixed plate 131 of the lower rolling cutting assembly 14.

[0053] like Figure 4As shown, the longitudinal cutting mechanism 8 also includes a waste discharge mechanism 9, which includes a mounting block 95, a second driving device, two driving roller assemblies, two driven roller assemblies and two pull-back devices. The two driving roller assemblies are symmetrically arranged on the left and right sides of the mounting block 95, and each driving roller assembly is connected to the mounting block 95. A bottom plate 143 is provided between the two fixed brackets, and two waste discharge holes 1431 are symmetrically arranged on the bottom plate 143. A driving roller assembly is correspondingly arranged directly below each waste discharge hole 1431. The second driving device is used to drive the two driving roller assemblies to rotate, and each driving roller assembly is connected to the driven roller assembly through a pull-back device. The driving roller assembly and the driven roller assembly are used to discharge waste. A driving roller 96 assembly is arranged directly below the waste discharge hole 1431, and the negative pressure generated by the falling of waste and the rotation of the driving roller 96 is used to form a coordinated waste discharge force, so that the waste removal efficiency is improved. The symmetrically arranged driving roller 96 assembly can simultaneously process the waste generated by cutting on the left and right sides, avoiding equipment overloading caused by unilateral waste discharge. The tension spring 94 of the pull-back device connects the driving roller 96 and the driven roller 91 components through fixing bolts at both ends to keep the traction force constant.

[0054] The driving roller assembly includes a driving roller 96 and two first mounting frames 90. The two first mounting frames 90 are symmetrically arranged on the left and right sides of the driving roller 96. The driving rollers 96 of the two driving roller assemblies are connected. The output end of the second driving device is connected to the end of the driving roller 96 of one driving roller assembly. The bottom of the first mounting frame 90 located on the inner side is detachably connected to the mounting block 95. The driven roller assembly includes a driven roller 91, two connecting rods 93 and two second mounting frames 92. The two second mounting frames 92 are symmetrically arranged on the left and right sides of the driven roller 91. One second mounting frame 92 is hinged to the first mounting frame 90 outside the driving roller assembly, and the other second mounting frame 92 is hinged to the mounting block 95. The two second mounting frames 92 are connected by two connecting rods 93. One connecting rod 93 is located at the upper part of the second mounting frame 92, and the other connecting rod 93 is located at the bottom of the second mounting frame 92. The pull-back device includes a tension spring 94 and two fixing bolts, one fixing bolt is arranged on the first mounting frame 90, and the other fixing bolt is arranged on the second mounting frame 92. The front and rear ends of the tension spring 94 are connected to a fixing bolt respectively.

[0055] It also includes a material buffer mechanism 5, which is arranged between the feeding mechanism and the first conveying mechanism 6. The material buffer mechanism 5 includes a material carrier, a vertical pole, two cross bars and two opposing sensors. The material carrier is used to place the cached materials. The ends of the two cross bars are connected to the vertical poles. A opposing sensor is arranged on each cross bar, one opposing sensor is located above the material carrier, and the other opposing sensor is arranged below the material carrier. The ends of the cross bars can be connected to different heights of the vertical poles. The cross bars and the opposing sensors on the material carrier form a vertical detection channel to monitor the material stacking height in real time. When the material height is lower than the preset threshold, the feeding mechanism is automatically triggered to replenish the material to ensure production continuity. The multi-height connection design of the cross bar end and the vertical pole allows the buffer area capacity to be adjusted according to the material roll diameter to meet the needs of different production rhythms.

[0056] The cross-cutting mechanism 11 includes a cutter cylinder assembly 18, an upper cross-cutting knife, a lower cross-cutting knife and a second guide plate. The output end of the cutter cylinder assembly 18 is connected to the upper cross-cutting knife, the lower cross-cutting knife is arranged below the upper cross-cutting knife, and the second guide plate is used to guide the absorbent pad after cutting.

[0057] How this example works

[0058] Step 1: Pre-treat the absorbent pad. The atomization system uses high pressure to atomize the liquid reagent into tiny droplets of 30-50μm to ensure that the reagent evenly covers the surface of the absorbent pad. The semi-dry process controls the atomization degree (i.e., droplet particle size) and the humidity in the atomization chamber to keep the absorbent pad moist but not fully saturated, avoiding material deformation caused by excessive infiltration.

[0059] By real-time monitoring and adjusting the humidity of the atomization chamber, a constant process environment is maintained to ensure that the humidity on the substrate surface is stable within the set range. This mechanism can dynamically compensate for humidity fluctuations caused by factors such as temperature and airflow, and reduce micro-stress concentration on the substrate caused by sudden changes in humidity.

[0060] A moderately moist environment causes the molecular chains on the surface of the substrate to rearrange, and forms a directional contraction force during the drying process, achieving physical closure of the material at the fracture. The automatic adjustment system avoids the risk of secondary cracking caused by rapid drying by precisely controlling the humidity gradient.

[0061] The surface of the absorbent pad is evenly wetted by 30-50μm droplets, so that the cellulose molecular chains swell appropriately to form a pre-oriented structure. Maintaining a stable humidity environment in the atomization chamber guides the molecular chains to be arranged in an orderly manner along the cutting direction, thereby improving the tear resistance of the fibers. The fiber gaps expand evenly in a wet state, and a densified transition layer is formed at the edge of the cut during cutting, which inhibits subsequent drying deformation. The upper and lower cutters 14 form a continuous shearing trajectory with an overlapping amount, which meets the stitching alignment accuracy requirements, thereby enabling the stitching of the four sides of the finished absorbent pad after cutting, such as Fig. 9 shown.

[0062] Step 2: Install a feeding mechanism, a first conveying mechanism 6, a longitudinal cutting mechanism 8, a second conveying mechanism 10, a transverse cutting mechanism 11 and a finished product conveying mechanism 12 on the frame from left to right, and the feeding mechanism feeds the pre-treated absorbent pad;

[0063] Step 3: The absorbent pad enters the first conveying mechanism 6 through the material buffer mechanism 5, and the transmission path is corrected by the transition conveying channel 7, and longitudinal cutting is performed. The first driving device drives the upper and lower rolling cutting components 14 to rotate synchronously in opposite directions, and the staggered cutting array performs continuous longitudinal cutting on the absorbent pad to form a strip-shaped semi-finished product with a preset width;

[0064] Step 4: The second driving device drives the driving roller assembly to rotate, driving the driven roller assembly to form a waste traction force, and the scraps produced by cutting fall into the gap between the driving roller 96 and the driven roller 91 through the waste discharge hole 1431 of the bottom plate 143, and the tension spring 94 of the pull-back device maintains a constant scrap traction tension;

[0065] Step 5: The second conveying mechanism 10 conveys the longitudinally cut strip semi-finished product to the transverse cutting station, and the cutter cylinder assembly 18 pushes the upper transverse cutter downward to cooperate with the lower transverse cutter to complete transverse cutting;

[0066] Step 6: The cut independent water-absorbing pads are guided to the finished product conveying mechanism 12 via the second guide plate.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for absorbent pads, characterized in that: The machine comprises a feeding mechanism, a first conveying mechanism (6), a second conveying mechanism (10), a longitudinal cutting mechanism (8), a transverse cutting mechanism (11) and a finished product conveying mechanism (12); the feeding mechanism, the first conveying mechanism (6), the longitudinal cutting mechanism (8), the second conveying mechanism (10), the transverse cutting mechanism (11) and the finished product conveying mechanism (12) are arranged in sequence from left to right on the frame; The longitudinal cutting mechanism (8) comprises an upper rolling cutting assembly (13), a lower rolling cutting assembly (14), a first driving device, a first guide plate (142) and two fixed brackets, the two fixed brackets are symmetrically arranged on the left and right, the two fixed brackets are symmetrically arranged on the frame, the upper rolling cutting assembly (13) and the lower rolling cutting assembly (14) are arranged in parallel between the two fixed brackets, the ends of the upper rolling cutting assembly (13) and the lower rolling cutting assembly (14) are detachably connected to one of the fixed brackets, the upper rolling cutting assembly (13) and the lower rolling cutting assembly (14) rotate, a water absorbent pad is passed between the upper rolling cutting assembly (13) and the lower rolling cutting assembly (14), and the first guide plate (142) is used to guide the water absorbent pad after longitudinal cutting.

2. A cutting device for absorbent pads according to claim 1, characterized in that: The upper rolling cutting assembly (13) comprises a roller shaft, two fixed plates (131) and a plurality of cutters, wherein the two fixed plates (131) are symmetrically arranged at the left and right ends of the roller shaft, and the fixed plates (131) are detachably connected to the fixed bracket, and the plurality of cutters are evenly distributed along the roller shaft to form a first cutting array, and the corresponding lower rolling cutting assembly (14) has the same structure as the upper rolling cutting assembly (13), and the cutters of the lower rolling cutting assembly (14) form a second cutting array along the circumference of the roller shaft, and the cutters of the first cutting array and the cutters of the second cutting array are in a spatially staggered corresponding relationship.

3. A cutting device for absorbent pads according to claim 2, characterized in that: The longitudinal cutting mechanism (8) further comprises two adjusting mechanisms for adjusting the spacing between the upper rolling cutting assembly (13) and the lower rolling cutting assembly (14), one adjusting mechanism being correspondingly arranged on the fixing plate (131) of each upper rolling cutting assembly (13), the adjusting mechanism comprising two adjusting top screws, the two adjusting top screws being arranged in parallel on the fixing plate (131), the adjusting top screws being threadably matched with the fixing plate (131), the bottom of the adjusting top screw passing through the fixing plate (131), and the bottom of the adjusting top screw abutting against the fixing plate (131) of the lower rolling cutting assembly (14).

4. A cutting device for absorbent pads according to claim 3, characterized in that: The longitudinal cutting mechanism (8) also includes a waste discharge mechanism (9), which includes a mounting block (95), a second driving device, two driving roller assemblies, two driven roller assemblies and two pull-back devices. The two driving roller assemblies are symmetrically arranged on the left and right sides of the mounting block (95), and each of the driving roller assemblies is connected to the mounting block (95). A bottom plate (143) is provided between the two fixed brackets. Two waste discharge holes (1431) are symmetrically provided on the bottom plate (143). A driving roller assembly is correspondingly provided directly below each waste discharge hole (1431). The second driving device is used to drive the two driving roller assemblies to rotate. Each of the driving roller assemblies is connected to the driven roller assembly via a pull-back device. The driving roller assembly and the driven roller assembly are used to discharge waste.

5. A cutting device for absorbent pads according to claim 4, characterized in that: The driving roller assembly comprises a driving roller (96) and two first mounting frames (90), wherein the two first mounting frames (90) are symmetrically arranged on the left and right sides of the driving roller (96), the driving rollers (96) of the two driving roller assemblies are connected, the output end of the second driving device is connected to the end of the driving roller (96) of one driving roller assembly, and the bottom of the first mounting frame (90) located on the inner side is detachably connected to the mounting block (95).

6. A cutting device for absorbent pads according to claim 4, characterized in that: The driven roller assembly comprises a driven roller (91), two connecting rods (93) and two second mounting frames (92), wherein the two second mounting frames (92) are symmetrically arranged on the left and right sides of the driven roller (91), one of the second mounting frames (92) is hinged to the first mounting frame (90) on the outer side of the driving roller assembly, and the other second mounting frame (92) is hinged to the mounting block (95), and the two second mounting frames (92) are connected by two connecting rods (93), one of the connecting rods (93) is located at the upper part of the second mounting frame (92), and the other of the connecting rods (93) is located at the bottom of the second mounting frame (92).

7. A cutting device for absorbent pads according to claim 6, characterized in that: The pull-back device comprises a tension spring (94) and two fixing bolts, one fixing bolt being arranged on the first mounting frame (90), and the other fixing bolt being arranged on the second mounting frame (92), and the front and rear ends of the tension spring (94) are respectively connected to one of the fixing bolts.

8. A cutting device for a water-absorbing pad according to any one of claims 1 to 7, characterized in that: The invention also comprises a material buffer mechanism (5), wherein the material buffer mechanism (5) is arranged between the loading mechanism and the first conveying mechanism (6), and the material buffer mechanism (5) comprises a material carrier, a vertical pole, two cross bars and two cross-beam sensors. The material carrier is used to place the buffered materials, and the ends of the two cross bars are connected to the vertical poles. Each cross bar is provided with one of the cross-beam sensors, one of which is located above the material carrier and the other of which is located below the material carrier. The ends of the cross bars can be connected to the vertical poles at different heights.

9. A cutting device for a water-absorbing pad according to claim 5, characterized in that: The cross-cutting mechanism (11) comprises a cutter cylinder assembly (18), an upper cross-cutting knife, a lower cross-cutting knife and a second guide plate, wherein the output end of the cutter cylinder assembly (18) is connected to the upper cross-cutting knife, the lower cross-cutting knife is arranged below the upper cross-cutting knife, and the second guide plate is used to guide the absorbent pad after cutting.

10. A cutting process for a water-absorbing pad, characterized in that: When using the cutting device according to any one of claims 1 to 7, the method comprises the following steps: Step 1: Pre-treat the absorbent pad. The atomization system uses high pressure to atomize the liquid reagent into tiny droplets of 30-50μm to ensure that the reagent evenly covers the surface of the absorbent pad. The semi-dry process controls the atomization degree (i.e., droplet particle size) and the humidity in the atomization chamber to keep the absorbent pad moist but not fully saturated, avoiding material deformation caused by excessive infiltration. Step 2: Installing a loading mechanism, a first conveying mechanism (6), a longitudinal cutting mechanism (8), a second conveying mechanism (10), a transverse cutting mechanism (11) and a finished product conveying mechanism (12) on the frame in order from left to right, wherein the loading mechanism loads the pre-treated absorbent pad; Step 3: The absorbent pad enters the first conveying mechanism (6) through the material buffer mechanism (5), and the transmission path is corrected by the transition conveying channel (7), and longitudinal cutting is performed. The first driving device drives the upper and lower rolling cutting components (14) to rotate synchronously in opposite directions, and the staggered cutting array performs continuous longitudinal cutting on the absorbent pad to form a strip-shaped semi-finished product with a preset width; Step 4: The second driving device drives the driving roller assembly to rotate, driving the driven roller assembly to form a waste traction force, and the scraps generated by cutting fall into the gap between the driving roller (96) and the driven roller (91) through the waste discharge hole (1431) of the bottom plate (143), and the tension spring (94) of the pull-back device maintains a constant waste traction tension; Step 5: The second conveying mechanism (10) conveys the longitudinally cut strip semi-finished product to the transverse cutting station, and the cutter cylinder assembly (18) pushes the upper transverse cutter downward to cooperate with the lower transverse cutter to complete transverse cutting; Step 6: The cut independent water-absorbing pads are guided to the finished product conveying mechanism (12) via the second guide plate.

Images