Automatic cutting, folding and grouping machine

Abstract

This invention discloses an automatic cutting, folding, and grouping machine, comprising a longitudinal folding mechanism, a hole-cutting mechanism, an edge-trimming mechanism, a cutting and folding mechanism, and a grouping mechanism through which the mother roll passes in sequence. The longitudinal folding mechanism is used to fold and press the mother roll along its length; the hole-cutting mechanism is used to cut and form eyelets and collect the waste material after cutting; the edge-trimming mechanism is used to cut and form mouth holes; the cutting and folding mechanism is used to cut the mother roll into multiple sheet-like units and fold the sheet-like units along their width; the grouping mechanism is used to group and stack multiple sheet-like units in a fixed number; the hole-cutting process integrates an automatic waste collection system of negative pressure adsorption and positive pressure blowing, which can remove cutting waste material in a timely and effective manner; the integrated cutting and folding design, through the synergistic effect of pre-folding and adsorption transfer, eliminates the cumulative error of multi-process positioning, significantly improving folding accuracy and product neatness; the fully automatic fixed-number grouping and stacking mechanism achieves precise grouping through mechanical timing control.

Description

Technical Field

[0001] This invention belongs to the field of paper processing equipment, and specifically relates to an automatic cutting, folding and grouping machine. Background Technology

[0002] Currently, the production of paper products involving cutting and folding often employs a multi-step, step-by-step operation mode. Manual material transfer and coordination are typically required between these steps, resulting in poor production continuity and low overall efficiency. In the cutting process, existing equipment generally lacks an effective automatic waste collection and processing mechanism. Waste generated during cutting easily adheres to the product surface, affecting product cleanliness and subsequent processing quality. The cutting and folding processes are mostly completed by independent equipment, and the two positioning operations can easily lead to cumulative errors, resulting in insufficient folding accuracy and uneven product edges. Furthermore, the grouping and stacking of finished products largely relies on manual operation, which is labor-intensive and results in significant errors in grouping quantities, making it difficult to meet the needs of large-scale standardized production. Summary of the Invention

[0003] (1) Technical problems to be solved This invention discloses an automatic cutting, folding, and grouping machine, which aims to solve the above-mentioned problems.

[0004] (2) Technical solution This invention discloses an automatic cutting, folding, and grouping machine, comprising a mother roll that passes through sequentially... A longitudinal folding mechanism is used to fold and press the master roll along its length. A hole-cutting mechanism is used to cut and form eye holes corresponding to the human eye and collect the waste material after cutting. The cutting mechanism is used to cut and form the mouth opening corresponding to the human mouth. A cutting and folding mechanism is used to cut the master roll into multiple sheet-like units and fold the sheet-like units in half along the width direction; A grouping mechanism for stacking multiple sheet-like units in fixed groups.

[0005] Furthermore, the cutting and folding mechanism includes a moving blade roller and a folding roller that are tangent to each other and rotate in opposite directions. The moving blade roller is provided with a plurality of moving blades arranged at intervals. A fixed blade that is tangent to the moving blades is provided on one side of the moving blade roller. The fixed blade and the moving blade cooperate to cut and form the sheet-like unit. The folding roller is provided with a plurality of second adsorption parts arranged at intervals.

[0006] Furthermore, a bending portion is provided between two adjacent moving blades to abut against the sheet unit to form a pre-folded edge. The bending portion is used to divide the sheet unit into a front roller portion and a rear roller portion arranged in the rotation direction. The front roller portion is provided with a first adsorption portion. When the moving blade roller and the fixed blade roller are tangent, the rear roller portion corresponds to the second adsorption portion. The first adsorption portion and the second adsorption portion adsorb the sheet unit on the front roller portion and the rear roller portion respectively before and after tangency. The second adsorption portion drives the sheet unit to fold along the pre-folded edge and rotate with the folding roller.

[0007] Furthermore, the fixed blade is mounted on the fixed blade roller, and the output shaft of the fixed blade roller is connected to one end of the swing member. The other end of the swing member is rotatably connected to a driving member. The driving member drives the swing member to swing, which synchronously drives the fixed blade roller to rotate, so that the fixed blade moves closer to or away from the moving blade.

[0008] Furthermore, a folding pressure roller is provided on one side of the folding roller, which is tangent to the folding roller and rotates in the opposite direction. A first conveyor belt and a second conveyor belt are respectively fitted on the folding roller and the folding pressure roller. A clamping position is formed between the first conveyor belt and the second conveyor belt, which extends in a straight line from the tangent position of the folding roller and the folding pressure roller, so that the folded sheet unit is rotated through the tangent position and then conveyed to the clamping position.

[0009] Furthermore, the grouping mechanism includes two conveyor groups spaced apart along the width direction. Each conveyor group includes a first conveyor belt and a second conveyor belt arranged symmetrically. A pressing position is formed between the two conveyor groups. The sheet-like unit is clamped on the holding positions of the two conveyor groups on both sides along the width direction, and its middle part corresponds vertically to the pressing position.

[0010] Furthermore, the grouping mechanism also includes a pressing group disposed above the pressing position, the pressing group including a pressing plate aligned with the pressing position and a pressing drive assembly for driving the pressing plate to move vertically; the grouping mechanism also includes a conveying cavity disposed below the pressing position and aligned with the pressing plate, through which the sheet-like units are pressed down into the conveying cavity and fall vertically in sequence.

[0011] Furthermore, the grouping mechanism also includes two opening and closing groups symmetrically arranged on both sides of the conveying cavity. Each opening and closing group includes two clamping plates and two driving components that drive the two clamping plates to move closer or further apart. Above the two opening and closing groups, there are also two fixed groups symmetrically arranged on both sides of the conveying cavity. Each fixed group includes two clamping plates and two driving components that drive the two clamping plates to move closer or further apart. By controlling the opening and closing sequence of the opening and closing groups and the fixed groups, the sheet-like units are stacked and grouped in a fixed number.

[0012] Furthermore, the cutting mechanism includes a roller and a cutter roller arranged tangentially at the top and bottom. The cutter roller is also provided with an air passage connecting the two ends of the roller along the axial direction. The two ends of the cutter roller are respectively provided with a negative pressure member and a positive pressure member connecting the air passage. A cutter is provided on the outer side of the cutter roller. The cutter forms a closed loop to form a surrounding surface. The surrounding surface is provided with air holes connecting the air passage. A collecting member is provided below the cutter roller. The cutter roller drives the cutter to rotate and cooperate with the upper roller to cut. The cut waste is adsorbed onto the air holes by the negative pressure member. As the cutter rotates to the collecting member facing downwards, the paper waste is blown into the collecting member by the positive pressure member.

[0013] Furthermore, the negative pressure component is provided with a negative pressure groove connecting one end of the air passage; the positive pressure component is provided with a positive pressure groove connecting the other end of the air passage; both the negative pressure groove and the positive pressure groove are arc-shaped grooves, and they do not overlap in their axial projections. The axial projection of the air passage is eccentrically set with respect to the cutter roller, so that when the cutter roller rotates, it drives the two ends of the air passage to alternately connect the negative pressure groove and the positive pressure groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The hole-cutting process integrates an automatic waste collection system combining negative pressure adsorption and positive pressure blowing, which can promptly and effectively remove cutting waste, completely preventing waste from contaminating the product and ensuring product quality. It adopts an integrated cutting and folding design, eliminating the cumulative errors of multi-process positioning through the synergistic effect of pre-folding and adsorption transfer, significantly improving folding accuracy and product neatness. Equipped with a fully automatic fixed-number grouping and stacking mechanism, it achieves precise grouping through mechanical timing control, reducing manual labor intensity and ensuring the consistency of group quantities. The overall modular integrated structure effectively reduces the equipment's footprint and lowers maintenance and debugging costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the paper surface state according to the present invention.

[0017] Figure 3 This is a schematic diagram of the longitudinal folding mechanism of the present invention. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the longitudinal folding mechanism of the present invention. Figure 2 .

[0019] Figure 5 This is a schematic diagram of the hole-cutting mechanism of the present invention.

[0020] Figure 6 This is a cross-sectional view of the hole-cutting mechanism of the present invention.

[0021] Figure 7 This is a schematic diagram of the positive pressure groove and negative pressure groove of the hole cutting mechanism of the present invention.

[0022] Figure 8 This is a side sectional view of the cutter roller of the present invention.

[0023] Figure 9 This is a schematic diagram of the cutting mechanism of the present invention.

[0024] Figure 10 This is a front view of the cutting and folding mechanism of the present invention.

[0025] Figure 11 This is a schematic diagram of the cutting and folding mechanism of the present invention.

[0026] Figure 12 For the present invention Figure 11 Enlarged view of point A.

[0027] Figure 13 This is a schematic diagram of the cutting and folding mechanism of the present invention.

[0028] Figure 14 This is a schematic diagram of the swing component and the drive component of the present invention.

[0029] Figure 15 This is a schematic diagram of the grouping mechanism of the present invention.

[0030] Figure 16 This is a schematic diagram of the transmission group of the present invention. Figure 1 .

[0031] Figure 17 This is a schematic diagram of the transmission group of the present invention. Figure 2 .

[0032] Figure 18 This is a schematic diagram of the pressing assembly and the conveying chamber of the present invention.

[0033] Figure 19 This is a schematic diagram of the opening / closing group and the fixed group of the present invention.

[0034] Reference numerals: 1-Longitudinal folding mechanism, 11-First folding plate, 111-Folded edge, 12-Second folding plate, 121-Guiding bevel first, 13-Triangular folding plate, 131-Guiding bevel second, 14-Pressure roller, 2-Cut hole mechanism, 21-Knife roller, 211-Air passage, 22-Roller, 23-Negative pressure component, 231-Adsorption passage, 232-Negative pressure groove, 233-Suction port, 24-Positive pressure component, 241-Blowing passage, 242-Positive pressure groove, 243-Air inlet, 25-Cutter, 251-Air hole, 26-Collector. 3-Edge trimming mechanism; 31-Edge trimming moving roller; 311-Edge trimming moving blade; 32-Edge trimming stationary roller; 321-Edge trimming stationary blade; 4-Cutting and folding mechanism; 41-Moving blade roller; 411-Moving blade; 412-Bending section; 4121-Front roller section; 4122-Rear roller section; 413-First adsorption section; 414-Blade groove; 42-Stationary blade roller; 421-Stationary blade; 422-Swinging component; 423-Drive component; 43-Folding roller; 431-Second adsorption section; 432-Allowing groove; 44-Folding pressure roller; 45-Traction roller; 46-Floating pressure roller. 5-Grouping mechanism, 51-Transfer group, 511-First conveyor belt, 512-Second conveyor belt, 513-Pressing position, 52-Pressing group, 521-Pressing plate, 522-Pressing drive assembly, 53-Conveying chamber, 531-Side plate one, 532-Side plate two, 54-Opening and closing group, 541-Clamping plate one, 542-Drive assembly one, 55-Fixed group, 551-Clamping plate two, 552-Drive assembly two, 6-Master roll, 61-Eye hole, 62-Mouth hole, 7-Sheet unit, 71-Front sheet, 72-Rear sheet, 73-Pre-folded edge. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figure 1-2As shown, this invention discloses an automatic cutting, folding, and grouping machine, comprising a continuous master roll 6 passing through a longitudinal folding mechanism 1, a hole-cutting mechanism 2, an edge-cutting mechanism 3, a cutting and folding mechanism 4, and a grouping mechanism 5 arranged sequentially from left to right. The longitudinal folding mechanism 1 folds the master roll 6 in half along its length and presses it along the folded edge to form a double-layered, overlapping long roll of paper. The hole-cutting mechanism 2 cuts circular eyelets 61 into the double-layered master roll 6, the width of which corresponds exactly to the width of two human eyes when the master roll 6 is unfolded. The edge-cutting mechanism 3 cuts circular eyelets 61 into the double-layered master roll 6. The mother roll 6 has strip-shaped mouth holes cut along its side. When unfolded, the mother roll 6 forms a continuous whole that corresponds to the human mouth. The cutting and folding mechanism 4 is used to cut the continuous mother roll 6 into multiple double-layer sheet units 7 along its length. Each double-layer sheet unit 7 is provided with an eye hole 61 and a mouth hole 62. After cutting, the double-layer sheet units 7 are folded in half along their width to form four overlapping sheet units 7. The grouping mechanism 5 is used to sequentially transport the four layers of sheet units 7 and group them into groups of three stacked together, and finally transport them to the subsequent packaging mechanism.

[0037] Specifically, such as Figure 3-4 As shown, the longitudinal folding mechanism 1 includes a horizontally arranged rectangular first folding plate 11. A right-angled trapezoidal second folding plate 12 extending obliquely downward is integrally connected to the left side of the folding plate 11. The width of the first folding plate 11 is the same as the width of the short side of the right-angled trapezoid of the second folding plate 12 and they are integrally connected. A folding edge 111 is provided on one side of the first folding plate 11, and an inclined guide edge 121 is provided on the same side of the second folding plate 12. At the same time, parallel triangular folding plates 13 are arranged at intervals at the bottom of the first folding plate 11. The triangular folding plates 13 are provided with opposite guide edges 131. One end of the guide edge 131 extends obliquely to the opposite corner of the bottom of the first folding plate 11, and the other end extends obliquely and protrudes from the second folding plate 12, and is staggered with the guide edge 121. Furthermore, such as Figure 4 As shown, the right side of the first folding plate 11 is also provided with two pressing rollers 14 arranged vertically. The double-layered mother roll 6 that has been folded is laterally conveyed to the two pressing rollers 14 to compact the double-layered mother roll 6. In actual production, the longitudinal folding mechanism 1, with traction force, has the master roll 6 covered from below the second folding plate 12 and the first folding plate 11 after passing through the guide roller. The other side of the master roll 6 along the length direction is folded by the first guide oblique edge 121. Then, guided by the second guide oblique edge 131 of the triangular folding plate 13, it is gradually folded along the folding edge 111 and conveyed to the right between the two pressing rollers 14 for compaction. This results in the master roll 6 being conveyed to the subsequent hole-cutting mechanism 2 in a compacted double-layer state.

[0038] Specifically, such as Figure 5-6 As shown, the cutting mechanism 2 is provided on the right side of the pressing roller 14. The cutting mechanism 2 includes a cutter roller 21 driven coaxially by a motor. The cutter roller 21 has an air passage 211 extending axially to both ends of the shaft. The two ends of the cutter roller 21 are respectively provided with a negative pressure member 23 and a positive pressure member 24 communicating with the air passage 211. The outer surface of the cutter roller 21 is provided with a plurality of circular cutters 25. The cutters 25 form a closed-loop enclosure surface. The enclosure surface is provided with a plurality of air holes 251. The air holes 251 extend radially into the interior of the cutter roller 21 and communicate with the air passage 211, forming an adsorption channel 231 from the air hole 251 to the negative pressure member 23 and an air blowing channel 241 from the positive pressure member 24 to the air hole 251. Meanwhile, a roller 22 is provided on the front of the cutter roller 21, which is tangentially arranged and rotates in opposite directions. The roller 22 rotates in cooperation with the cutter roller 21 to provide support force to the cutter 25 for cutting the face paper. A collector 26 is also provided directly below the cutter roller 21 to collect the circular face paper waste after cutting. Furthermore, such as Figure 5-8 As shown, the negative pressure component 23 has a negative pressure groove 232 facing the adsorption channel 231, and an air intake 233 connected to the negative pressure groove 232 is provided at its side end. Correspondingly, the positive pressure component 24 has a positive pressure groove 242 facing the air blowing channel 241, and an air inlet 243 connected to the positive pressure groove 242 is provided at its side end. By connecting the air pipe to the air intake 233, air is drawn from the negative pressure groove 232 and the adsorption channel 231 in sequence, so that the air hole 251 generates an adsorption force to adsorb the paper. Similarly, by connecting another air pipe to the air inlet 243, air is discharged from the positive pressure groove 242 and the air blowing channel 241 in sequence, so that a thrust is generated from the air hole 251 to blow the cut paper waste towards the collection component 26.

[0039] It is worth noting that both the negative pressure member 23 and the positive pressure member 24 can be rotated to change the axial projection position of the negative pressure groove 232 and the positive pressure groove 242.

[0040] Furthermore, such as Figure 5-8As shown, both the negative pressure groove 232 and the positive pressure groove 242 are arc-shaped grooves extending in an arc shape. They do not overlap in their axial projection and are on the same circumference. The negative pressure groove 232 is located at the top of the upper cover, and the positive pressure groove 242 is located at the bottom of the lower cover. At the same time, the surface of the cutter roller 21 is provided with a plurality of circumferentially spaced air holes 251. The air holes 251 extend radially and connect to the axially extending air passage 211. The axial projection of the air passage 211 is eccentrically set with the cutter roller 21 and is on the same circumference as the negative pressure groove 232 and the positive pressure groove 242. This allows the cutter roller 21 to rotate and drive the two ends of the air passage 211 to alternately connect to the negative pressure groove 232 and the positive pressure groove 242. This structural design can prevent the simultaneous connection of the negative pressure groove 232 and the positive pressure groove 242 at both ends of the same air passage 211, thus avoiding the timing disorder of simultaneous air extraction and blowing.

[0041] Preferably, such as Figure 7 As shown, in the axial projection of the negative pressure groove 232 and the positive pressure groove 242, the arc-shaped range of the negative pressure groove 232 covers the upper end. Taking the connection of the upper end as the reference line, it expands to the left by 45 degrees to ensure that the air hole 251 connected to the negative pressure groove 232 has an adsorption force before the cutter 25 cuts. It expands to the right by 135 degrees so that the air hole 251 still has an adsorption force when the cutter 25 rotates to the side end, thus preventing the paper waste after cutting from falling off prematurely. The positive pressure groove 242 has an arc-shaped range covering the lower end, and expands to 45 degrees on both sides with the lower end as the reference line. The right side connects with the negative pressure groove 232. In this connecting section, the air hole 251 changes from generating adsorption force to generating thrust, blowing the circular paper waste into the collection member 26 below.

[0042] Preferably, such as Figure 5 As shown, in order to ensure that the blown paper waste can fall accurately into the collection member 26, the collection member 26 is a funnel-shaped funnel.

[0043] In actual production, the hole-cutting mechanism 2 transports the double-layered mother roll 6 between the cutter roller 21 and the roller 22. The cutter roller 21 is driven to rotate by a motor. The circular cutter 25 on the surface of the cutter roller 21 cooperates with the roller 22 to cut the eyelets 61 of the mother roll 6. After cutting, the negative pressure component 23 at one end of the cutter roller 21 forms a negative pressure in the negative pressure groove 232 through the air intake 233. This negative pressure is transmitted through the eccentric air passage 211 inside the cutter roller 21 to the air holes 251 on the enclosing surface of the cutter 25, thus cutting the freshly cut circular face paper. The waste material is firmly adsorbed onto the surface of the air hole 251. As the cutter roller 21 continues to rotate, when the cutter 25 with the waste material adsorbed rotates to the lower position, the positive pressure member 24 at the other shaft end forms positive pressure in the positive pressure groove 242 through the air inlet 243. At this time, the eccentric air passage 211 is connected to the positive pressure groove 242. The positive pressure gas blows the waste material downward into the funnel-shaped collection funnel below through the air passage 211 and the air hole 251, which finally causes the master roll 6 to be cut along the length direction to form spaced eye holes 61, and continues to be conveyed to the edge cutting mechanism 3 on the right.

[0044] Specifically, such as Figure 9 As shown, the trimming mechanism 3 includes a trimming moving blade roller 31 and a trimming fixed blade roller 32 that are tangent to each other and rotate in opposite directions. The trimming fixed blade roller 32 does not rotate and is equipped with a trimming fixed blade 321 that always faces upward. The trimming moving blade roller 31 is driven to rotate by a motor and is equipped with a trimming moving blade 311 that rotates synchronously. The blade of the trimming moving blade 311 is inclined relative to the axial direction, so that when the trimming moving blade 311 and the trimming fixed blade 321 are tangent, they only cut a small section along the axial direction at the edge of the folded edge of the mother roll 6, so that the mother roll 6 forms a mouth hole 62 corresponding to the human mouth after it is unfolded.

[0045] Specifically, such as Figure 10-13 As shown, the cutting and folding mechanism 4 is provided on the right side of the cutting mechanism 3. The cutting and folding mechanism 4 includes a clockwise rotating blade roller 41. The outer side of the blade roller 41 is provided with a plurality of blades 411 that are equidistantly spaced along the circumference. A slightly outwardly protruding bending portion 412 is provided in the middle between two adjacent blades 411. The bending portion 412 separates the area between two adjacent blades 411 to form a front roller portion 4121 and a rear roller portion 4122 that are arranged back and forth along the rotation direction. A first adsorption portion 413 is provided on the front roller portion 4121. The first adsorption portion 413 is a plurality of adsorption pores that can adsorb the face paper tightly against the surface of the blade roller 41 and prevent it from falling off with rotation. It also includes a fixed blade roller 42 disposed above the moving blade roller 41. The fixed blade roller 42 is provided with a fixed blade 421 extending toward the moving blade roller 41. When the moving blade roller 41 drives the moving blade 411 to rotate, the fixed blade 421 and the moving blade 411 are tangentially engaged to cut the face paper. A folding roller 43 is also provided on the right side of the moving cutter roller 41. The folding roller 43 is tangent to the moving cutter roller 41 and rotates synchronously in opposite directions. A number of second adsorption parts 431 are provided on the outer side of the folding roller 43 at equal intervals along the circumference. When the moving cutter roller 41 and the folding roller 43 are tangent, the second adsorption parts 431 are positioned corresponding to the front roller part 4121. The second adsorption parts 431 are also a number of adsorbable air holes.

[0046] In actual production, the double-layered mother roll 6 is sleeved on the moving cutter roller 41 and rotates clockwise with the moving cutter roller 41. At this time, the moving cutter 411 abuts against the mother roll 6 on one side but does not cut. The bending part 412 abuts against the mother roll 6 to form a pre-folded edge 73 until the moving cutter 411 rotates to be tangent to the fixed cutter 421 of the fixed cutter roller 42. Both sides are subjected to force to complete the cutting, cutting the originally continuous mother roll 6 into multiple equidistant sheet units 7. The sheet unit 7 includes a front sheet 71 and a rear sheet 72 that correspond to the positions of the front roller part 4121 and the rear roller part 4122, respectively. Simultaneously, the first adsorption part 413 adsorbs the front sheet 71 on the front roller 4121 to prevent it from falling off during rotation. Subsequently, the front sheet 71 and the rear sheet 72 corresponding to the front roller 4121 and the rear roller 4122 pass through the tangent position of the moving blade roller 41 and the folding roller 43 in sequence. During this process, after the front roller 4121 passes through the tangent position, the first adsorption part 413 stops adsorbing the sheet unit 7. Then, when the rear roller 4122 passes through the tangent position, the corresponding second adsorption part 431 adsorbs the rear sheet 72, thereby transferring the sheet unit 7 to the outer surface of the folding roller 43. Since the front piece 71 is no longer attracted by the first adsorption part 413 after passing the tangential position, only the rear piece 72 is attracted by the second adsorption part 431 and rotates counterclockwise with the fixed blade roller 42. At this time, under the action of centrifugal force, the front piece 71 is folded along the pre-folded edge 73 until it is folded with the rear piece 72, and moves to the subsequent grouping mechanism 5 while maintaining the folded state.

[0047] Preferably, such as Figure 13 As shown, the first adsorption part 413 is disposed on the front side of the front roller part 4121, so that the front sheet part 71 is more flat when it is tangent to the folding roller 43, and prevents the edge from curling up when tangent.

[0048] Preferably, such as Figure 13 As shown, when tangent, the position of the second adsorption part 431 corresponds to the position of the front side of the front roller part 4121 near the bending part 412, so that the rear piece part 72 can better complete the folding with the front piece part 71 along the pre-folded edge 73.

[0049] Specifically, such as Figure 12-13 As shown, when the moving blade roller 41 is tangent to the folding roller 43, the moving blade 411 protrudes radially outward, so it will abut against the outer surface of the folding roller 43, which may cause damage. To solve this problem, the outer surface of the folding roller 43 is provided with several equally spaced clearance grooves 432, so that when the moving blade 411 rotates to the tangent position, the clearance grooves 432 are exactly positioned to avoid the moving blade 411, and the circumferential distance between two adjacent clearance grooves 432 is equal to the circumferential distance between two adjacent moving blades 411.

[0050] Specifically, such as Figure 13 As shown, the outer surface of the moving cutter roller 41 is provided with a plurality of equally spaced cutter grooves 414. The cutter grooves 414 extend radially, and a cutter body that can slide radially is provided in the cutter grooves 414. The moving cutter 411 or the bending portion 412 is formed by adjusting the degree of protrusion of the cutter body in the radial direction relative to the outer surface of the moving cutter roller 41. The degree of protrusion of the moving cutter 411 is greater than the degree of protrusion of the bending portion 412. This structural arrangement allows the moving cutter 411 with different adjacent circumferential spacings to be formed by adjusting the degree of protrusion of the cutter body in the cutter grooves 414, thereby cutting and forming sheet-like units 7 of different lengths.

[0051] Specifically, such as Figure 14 As shown, the output shaft of the fixed blade roller 42 is securely connected to one end of a strip-shaped oscillating member 422, and the other end of the oscillating member 422 is rotatably connected to a driving member 423. The driving member 423 is a telescopic cylinder. The telescopic output of the cylinder drives the oscillating member 422 to oscillate, which in turn drives the fixed blade roller 42 to rotate in both directions. When the fixed blade roller 42 rotates counterclockwise, the fixed blade 421 moves away from the moving blade 411 along an arc. When the fixed blade roller 42 rotates clockwise, the fixed blade 421 moves closer to the moving blade 411 along an arc until it is tangent to the moving blade 411.

[0052] Furthermore, such as Figure 13As shown, the blade of the moving blade 411 extends axially, while the blade of the fixed blade 421 above it is inclined relative to the axial direction, so that the blade of the fixed blade 421 and the blade of the moving blade 411 are in cross contact, forming a cutting angle similar to that of scissors. When the moving blade 411 rotates, the contact point between the blades of the moving blade 411 and the fixed blade 421 moves from one end to the other end, and the process of moving completes the cutting of the mother roll 6.

[0053] Specifically, such as Figure 10 As shown, a traction roller 45 is also provided at the lower left corner of the moving knife roller 41, and a floating pressure roller 46 is provided above the traction roller 45. In actual production, the long roll of face paper is arranged in an "S" shape and successively fitted onto the floating pressure roller 46 and the traction roller 45, and then fitted onto the moving knife roller 41. This is to increase the contact area and friction between the face paper and the traction roller 45, thereby applying a stable traction force to the face paper and ensuring that the tension of the face paper is uniform during the conveying process.

[0054] Specifically, such as Figure 10-11 As shown, when the sheet-like unit 7 is adsorbed onto the folding roller 43 after passing the tangential position, the front sheet 71 is only initially folded against the rear sheet 72 along the pre-folded edge 73 by centrifugal force, and is not completely compacted to maintain the folded state. To solve this problem, a folding pressure roller 44 is also provided below the folding roller 43. The folding pressure roller 44 is tangential to the folding roller 43 and rotates in the opposite direction, so that the sheet-like unit 7, which has completed the initial folding, receives the upper and lower pressing force as the folding roller 43 rotates and passes the position where the folding roller 43 and the folding pressure roller 44 are tangential, so that the front sheet 71 and the rear sheet 72 are completely compacted along the pre-folded edge 73.

[0055] Furthermore, such as Figure 10-11 As shown, the folding roller 43 and the pressing roller 44 are respectively fitted with a first conveyor belt 511 and a second conveyor belt 512 arranged vertically. The first conveyor belt 511 and the second conveyor belt 512 rotate with the folding roller 43 and the pressing roller 44, and the first conveyor belt 511 and the second conveyor belt 512 form a clamping position that extends horizontally in a straight line from the tangent position. After the sheet unit 7 is pressed and folded by the folding roller 43 and the pressing roller 44 at the tangent position, it directly enters the clamping position and moves horizontally to the subsequent grouping mechanism 5.

[0056] Specifically, such as Figure 15-19As shown, the grouping mechanism 5 includes two conveyor groups 51 arranged parallel to each other along the width direction. Each conveyor group 51 includes a first conveyor belt 511 and a second conveyor belt 512 respectively sleeved on the folding roller 43 and the pressing roller 44. The first conveyor belt 511 and the second conveyor belt 512 are both thin strip belts, so that the two conveyor groups 51 are spaced apart along the width direction to form a pressing position 513. The two sides of the sheet-like unit 7 are respectively clamped on the clamping positions of the two conveyor groups 51 along the width direction, and the middle part corresponds vertically to the pressing position 513. Furthermore, the rotation of the folding roller 43 and the pressing roller 44 drives the two first conveyor belts 511 and the two second conveyor belts 512 to move synchronously to the right, clamping the sheet-like unit 7 and moving it laterally to the right in sequence.

[0057] Furthermore, such as Figure 15-19 As shown, the grouping mechanism 5 also includes a pressing group 52 disposed above the two conveying groups 51. The pressing group 52 includes a pressing plate 521 aligned vertically with the pressing position 513 and a pressing drive assembly 522 that drives the pressing plate 521 to move up and down repeatedly to press down. The pressing drive assembly 522 is an eccentric wheel crank slider mechanism, including a motor, an eccentric wheel, a crank, a slider, and a vertically extending guide rail. The eccentric wheel is coaxially connected to the output shaft of the motor. One end of the crank is rotatably connected to the eccentric position of the eccentric wheel, and the other end is rotatably connected to the slider sleeved on the vertical guide rail. Ultimately, the pressing plate 521 moves vertically repeatedly and drives the sheet unit 7 to press down synchronously until it is separated from the two conveying groups 51.

[0058] Furthermore, such as Figure 15-19 As shown, the grouping mechanism 5 also includes a conveying cavity 53 disposed below the two conveying groups 51. The conveying cavity 53 is vertically aligned with the lower pressure plate 521. The conveying cavity 53 includes two side plates 531 arranged horizontally and vertically and two side plates 532 arranged vertically and vertically. The two side plates 531 and the two side plates 532 together form the conveying cavity 53 that runs vertically through the conveying cavity. Through the repeated pressing of the lower pressure plate 521, multiple sheet-like units 7 fall vertically and sequentially along the conveying cavity 53. Meanwhile, two symmetrically arranged opening and closing groups 54 are provided on both sides of the conveying cavity 53. The opening and closing group 54 includes a laterally extending clamping plate 541 and a driving component 542 that drives the clamping plate 541 to move laterally and repeatedly. The driving component 542 is also an eccentric wheel crank slider mechanism, including a motor, an eccentric wheel, a crank, a slider and a laterally extending guide rail. Ultimately, the two clamping plates 541 move laterally closer or further away from each other with the conveying cavity 53 as the central axis. When they move closer to each other, at least a part of the clamping plate 541 extends into the conveying cavity 53 to intercept the sheet-like unit 7 falling down. In addition, two fixed groups 55 are provided between the two opening and closing groups 54 and the conveying group 51. The two fixed groups 55 are symmetrically arranged on both sides of the conveying cavity 53. The fixed groups 55 include a second clamping plate 551 extending laterally and a second driving component 552 that drives the second clamping plate 551 to move laterally and repeatedly. The second driving component 552 is also an eccentric wheel crank slider mechanism, including a motor, an eccentric wheel, a crank, a slider and a laterally extending guide rail. Ultimately, the two second clamping plates 551 are also laterally closer or farther from each other with the conveying cavity 53 as the central axis. When they are close to each other, at least a part of the second clamping plate 551 extends into the conveying cavity 53 to intercept the sheet-like unit 7 falling down.

[0059] During actual production of the grouping mechanism 5, the sheet-like unit 7, folded in half along the width direction, is clamped between the first conveyor belt 511 and the second conveyor belt 512, and is sequentially conveyed horizontally to the pressing position 513 between the two conveyor groups 51. The pressing drive assembly 522 drives the pressing plate 521 to repeatedly rise and fall. Each time the pressing plate 521 completes a pressing action, it pushes one of the sheet-like units 7 away from the clamping of the conveyor belt, allowing it to enter the vertically penetrating conveying cavity 53 below. When the sheet-like unit 7 falls along the conveying cavity 53, the two clamping plates 541 of the two opening and closing groups 54 abut against each other. When the sheet-like units 7 are in a closed state, they are intercepted and received layer by layer. When the number of stacks reaches three, the two clamping plates 551 of the two fixed arrays 55 come closer to each other and close, intercepting the subsequent falling sheet-like units 7. Then the two clamping plates 541 move away from each other and disengage from the conveying cavity 53. The sheet-like units 7 that have been stacked into a group of three fall to the subsequent process and are packaged in groups of three. Then the two opening and closing groups 54 reset and close, the fixed arrays 55 open, and continue to receive the subsequent sheet-like units 7. This cycle repeats to achieve continuous automatic grouping and stacking conveying.

[0060] It is worth noting that the number of sheet-like units 7 intercepted by each of the opening and closing groups 54 is not limited to three. The number of intercepted units can be controlled by adjusting the opening and closing sequence of the opening and closing groups 54 and the fixed group 55, depending on the actual production needs.

[0061] The innovation of this invention lies in: The hole-cutting process integrates an automatic waste collection system combining negative pressure adsorption and positive pressure blowing, which can promptly and effectively remove cutting waste, completely preventing waste from contaminating the product and ensuring product quality. It adopts an integrated cutting and folding design, eliminating the cumulative errors of multi-process positioning through the synergistic effect of pre-folding and adsorption transfer, significantly improving folding accuracy and product neatness. Equipped with a fully automatic fixed-number grouping and stacking mechanism, it achieves precise grouping through mechanical timing control, reducing manual labor intensity and ensuring the consistency of group quantities. The overall modular integrated structure effectively reduces the equipment's footprint and lowers maintenance and debugging costs.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic cutting, folding and grouping machine characterized by, Including the mother volume (6) which passes through in sequence A longitudinal folding mechanism (1) is used to fold and press the master roll (6) along its length. The hole-cutting mechanism (2) is used to cut and form eye holes (61) corresponding to the human eye and collect the waste material after cutting; The cutting mechanism (3) is used to cut and form the mouth hole (62) corresponding to the human mouth. The cutting and folding mechanism (4) is used to cut the master roll (6) into multiple sheet-like units (7) and fold the sheet-like units (7) in the width direction; Grouping mechanism (5) is used to group and stack multiple sheet units (7) in a fixed number.

2. The automatic cutting, folding and grouping machine according to claim 1, characterized in that, The cutting and folding mechanism (4) includes a moving blade roller (41) and a folding roller (43) that are tangent to each other and rotate in opposite directions. The moving blade roller (41) is provided with a number of moving blades (411) spaced apart. A fixed blade (421) is provided on one side of the moving blade roller (411) that is tangent to the moving blades (411). The fixed blade (421) and the moving blades (411) cooperate to cut and form the sheet-like unit (7). The folding roller (43) is provided with a number of second adsorption parts (431) spaced apart.

3. The automatic cutting, folding and grouping machine according to claim 2, characterized in that, A bending portion (412) is provided between two adjacent moving blades (411) to abut against the sheet unit (7) to form a pre-folded edge (73). The bending portion (412) separates the front roller portion (4121) and the rear roller portion (4122) arranged in the rotation direction. The front roller portion (4121) is provided with a first adsorption portion (413). When the moving blade roller (41) and the fixed blade roller (42) are tangent, the rear roller portion (4122) corresponds to the second adsorption portion (431). The first adsorption portion (413) and the second adsorption portion (431) adsorb the sheet unit (7) on the front roller portion (4121) and the rear roller portion (4122) respectively before and after tangency. The second adsorption portion (431) drives the sheet unit (7) to fold along the pre-folded edge (73) and rotate with the folding roller (43).

4. The automatic cutting, folding and grouping machine according to claim 2, characterized in that, The fixed blade (421) is mounted on the fixed blade roller (42). The output shaft of the fixed blade roller (42) is connected to one end of the swing member (422). The other end of the swing member (422) is rotatably connected to the drive member (423). The drive member (423) drives the swing member (422) to swing, which synchronously drives the fixed blade roller (42) to rotate, so that the fixed blade (421) moves closer to or away from the moving blade (411).

5. The automatic cutting, folding and grouping machine according to claim 2, characterized in that, The folding roller (43) has a folding pressure roller (44) on one side that is tangent to the folding roller (43) and rotates in the opposite direction. The folding roller (43) and the folding pressure roller (44) are respectively fitted with a first conveyor belt (511) and a second conveyor belt (512). A clamping position is formed between the first conveyor belt (511) and the second conveyor belt (512) extending in a straight line from the tangent position of the folding roller (43) and the folding pressure roller (44), so that the folded sheet unit (7) is rotated through the tangent position and then conveyed to the clamping position.

6. The automatic cutting, folding and grouping machine according to claim 5, characterized in that, The grouping mechanism (5) includes two conveyor groups (51) spaced apart along the width direction. Each conveyor group (51) includes a first conveyor belt (511) and a second conveyor belt (512) arranged symmetrically. A pressing position (513) is formed between the two conveyor groups (51). The sheet unit (7) is clamped on the holding positions of the two conveyor groups (51) on both sides along the width direction, and its middle part corresponds vertically to the pressing position (513).

7. The automatic cutting, folding and grouping machine according to claim 6, characterized in that, The grouping mechanism (5) further includes a pressing group (52) disposed above the pressing position (513). The pressing group (52) includes a pressing plate (521) aligned with the pressing position (513) and a pressing drive assembly (522) for driving the pressing plate (521) to move vertically. The grouping mechanism (5) further includes a conveying cavity (53) disposed below the pressing position (513) and aligned with the pressing plate (521). The sheet unit (7) is pressed down into the conveying cavity (53) by the pressing plate (521) and falls vertically in sequence.

8. The automatic cutting, folding and grouping machine according to claim 7, characterized in that, The grouping mechanism (5) further includes two opening and closing groups (54) symmetrically arranged on both sides of the conveying cavity (53). The opening and closing group (54) includes two clamping plates (541) and two driving components (542) that drive the two clamping plates (541) to move closer or further away from each other. Above the two opening and closing groups (54), there are two fixed groups (55) symmetrically arranged on both sides of the conveying cavity (53). The fixed groups (55) include two clamping plates (551) and two driving components (552) that drive the two clamping plates (551) to move closer or further away from each other. By controlling the opening and closing sequence of the opening and closing groups (54) and the fixed groups (55), the sheet units (7) are stacked and grouped in a fixed number.

9. The automatic cutting, folding and grouping machine according to claim 1, characterized in that, The hole-cutting mechanism (2) includes a roller (22) arranged tangentially at the top and bottom and a cutter roller (21). The cutter roller (21) is also provided with an air passage (211) that connects the two ends of the roller along the axial direction. The two ends of the cutter roller (21) are respectively provided with a negative pressure member (23) and a positive pressure member (24) that connect to the air passage (211). The outer side of the cutter roller (21) is provided with a cutter (25). The cutter (25) forms a closed loop to form an enclosing surface. The enclosing surface is provided with a connection to the air passage. The air hole (251) of the channel (211) is provided with a collection member (26) below the cutter roller (21); the cutter roller (21) drives the cutter (25) to rotate and cooperate with the upper roller (22) to cut, and the waste material after cutting is adsorbed on the air hole (251) by the negative pressure member (23). As the cutter (25) rotates to the collection member (26) facing downward, the paper waste is blown into the collection member (26) by the positive pressure member (24).

10. The automatic cutting, folding and grouping machine according to claim 9, characterized in that The negative pressure component (23) is provided with a negative pressure groove (232) that connects to one end of the air passage (211); the positive pressure component (24) is provided with a positive pressure groove (242) that connects to the other end of the air passage (211); the negative pressure groove (232) and the positive pressure groove (242) are both arc-shaped grooves, and they do not overlap in the axial projection. The axial projection of the air passage (211) is eccentrically set with the cutter roller (21), so that when the cutter roller (21) rotates, it drives the two ends of the air passage (211) to alternately connect the negative pressure groove (232) and the positive pressure groove (242).

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