A paper-based packaging automated die-cutting process and apparatus

Abstract

The application relates to the paper base die cutting technical field, in particular to a paper base packaging automatic die cutting process and device, which comprises a conveying mechanism and a die cutting mechanism, a reinforcing mechanism, an edge cutting mechanism and a folding mechanism which are sequentially arranged along the paper base conveying direction; the reinforcing mechanism comprises a suction lifting assembly arranged on a rack and used for lifting a paper strip and a bonding assembly arranged on the suction lifting assembly and used for bonding a yarn net to the paper strip; the application can reinforce the indentation at the opening of the carton by combining the paper edge strip and the yarn net, supports the corners of the carton by the inner lining blocks on the two sides of the inner rocker cover, increases the structural strength of the corners of the carton, reduces the rupture and deformation of the corners of the carton, improves the strength of the carton, and solves the technical problems that the indentation at the corners of the carton is relatively fragile, the structural strength is low, and deformation or rupture is prone to occur.

Description

Technical Field

[0001] This invention relates to the field of paper-based die-cutting technology, and in particular to an automated die-cutting process and apparatus for paper-based packaging. Background Technology

[0002] In the production of cardboard boxes, die-cutting machines are used to process the cardboard. Die-cutting machines are mainly divided into rotary die-cutting machines, rotary flatbed die-cutting machines, and flatbed die-cutting machines, depending on their structure. Rotary flatbed die-cutting machines generally process the cardboard by rotating die-cutting rollers. The die-cutting rollers are fixed to the die-cutting machine with bolts. Over long-term use, the die-cutting rollers are prone to wear or damage and therefore need frequent replacement.

[0003] However, in actual use, the inventors found that the corners and creases of the cardboard boxes were relatively fragile and had low structural strength. During rough transportation, the cardboard boxes were prone to deformation or breakage, resulting in poor performance. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated die-cutting process and device for paper-based packaging. This device uses a combination of paper edge strips and mesh to reinforce the indentations at the opening of the carton, and utilizes the inner lining blocks on both sides of the inner flap to support the corners of the carton. This increases the structural strength of the carton's corners, reduces the likelihood of cracking and deformation at the corners, and improves the overall strength of the carton. Thus, it solves the technical problem that the indentations at the corners of the carton are relatively fragile, have low structural strength, and are prone to deformation or cracking.

[0005] To address the above technical issues, the following technical solution is adopted: An automated die-cutting process for paper-based packaging includes the following steps: Step 1, conveying process: the conveying mechanism intermittently transports the paper base to each workstation; Step 2, die-cutting process: The die-cutting mechanism intermittently cuts the paper base into cardboard for assembling cartons, and performs creasing and slitting on the cardboard, leaving paper strips between adjacent cardboard pieces; Step 3, the creasing and reinforcement process: the reinforcement mechanism glues a mesh to the surface of the paper strip and divides the paper strip in half. Then, the paper strips are glued to the cardboard creasing at the opening of the carton in turn. Step 4, inner flap trimming process: The trimming mechanism trims the edges of both sides of the inner flap to form two paper pieces, and presses creases with progressively larger spacing on the paper pieces. Step 5, the inner lining block folding process: the folding mechanism folds the paper piece from one end along the crease to the cardboard crease at the opening of the carton, and applies glue to the surface of the paper piece to fold it into a three-dimensional inner lining block.

[0006] Preferably, an automated die-cutting device for paper-based packaging includes a reinforcement mechanism comprising a suction and lifting assembly mounted on a frame for suspending paper strips and an adhesive assembly mounted on the suction and lifting assembly for bonding the paper strips with a mesh.

[0007] Preferably, the suction and hanging assembly includes: A first lifting unit is mounted on the frame. The first hanger is installed at the output end of the first lifting unit; Two sets of hanging plates are symmetrically raised and lowered on the first hanger via a sliding groove, and a first elastic element is provided between the hanging plate and the upper end of the sliding groove; A first suction hole, several sets of first suction holes are arranged at the bottom of the hanging plate, and a first vacuum pump is provided on the hanging plate. The first vacuum pump is connected to the first suction hole through a hose. L-shaped hanging rods, with two sets of L-shaped hanging rods symmetrically arranged on the hanging plate; The turntables are symmetrically arranged on the first hanger and rotate synchronously through a coupling. The first hanger is equipped with a first motor, which is used to drive the turntables to work. The outer edge rods, two sets of which are symmetrically arranged on the turntable, are used to drive the L-shaped hanging rod to lift the suspended plate.

[0008] Preferably, the bonding component includes: A first horizontal drive unit is mounted on the first hanger; An extension plate is disposed at the output end of the first horizontal drive unit, and a first hydraulic component is disposed on the extension plate; A corner plate is provided at the output end of the first hydraulic component, and a second hydraulic component is provided on the corner plate; Mounting frame, the mounting frame is set at the output end of the second hydraulic component, and a winding roller is provided on the mounting frame, on which a mesh is wound; A glue-applying roller, which is rotatably mounted on the mounting frame and is used to apply glue to the bottom of the paper strip; A pressing roller is rotatably mounted on the mounting frame. The pressing roller cooperates with the glue-applying roller to clamp the conveying mesh. The pressing roller is used to adhere the mesh to the bottom of the paper strip. A second horizontal drive unit is disposed on the mounting bracket; A cross-shaped cutter head is located at the output end of the second horizontal drive unit and is used to split the paper strip in two along the gap between the two sets of hanging plates, and also to cut the mesh.

[0009] Preferably, the die-cutting mechanism includes: A chassis is mounted on the frame, and power boxes are mounted on both inner side walls of the chassis. The slitting roller is rotatably positioned between the two power boxes. A second motor is installed inside one of the power boxes to drive the slitting roller to rotate. Cross-cutting blades, two sets of cross-cutting blades are symmetrically arranged on the slitting roller and are used to cut strips of paper between two adjacent cardboards; Two sets of transverse pressure strips are symmetrically arranged on the slitting roller and are used to indent at the opening of the carton; The four sets of axial cutters are arranged circumferentially on the slitting roller and located between the cross cutter and the cross pressure bar, for cutting the flaps at the opening of the carton; The four sets of axial pressure strips are arranged along the circumferential direction on the slitting roller and located between the two sets of transverse pressure strips, for creasing the four vertical edges of the carton; The third hydraulic component, consisting of two sets of the third hydraulic components, is mounted on the machine housing and is used to drive the power box to lift and lower the slitting roller.

[0010] Preferably, the trimming mechanism includes a creasing assembly disposed on the frame for creasing paper strips adhered to the cardboard, and an edge-retaining assembly disposed on the creasing assembly for trimming the sides of the inner flap.

[0011] Preferably, the trace-repairing component includes: The second lifting unit is mounted on the frame. The second hanger is located at the output end of the second lifting unit; Two sets of pressure bars are symmetrically arranged on the second hanger via a suspension rod and are used to indent the paper strips adhered to the cardboard.

[0012] Preferably, the edge-keeping component includes: The third horizontal drive unit, two sets of the third horizontal drive units are symmetrically arranged on the second hanger; The first frame is disposed at the output end of the third horizontal drive unit; A first central shaft is rotatably mounted on the first frame, and four sets of cutting blades are mounted on the first central shaft. A vertical pole is provided, which is connected through and raised and lowered on the first frame. A second frame is provided at the lower end of the vertical pole, and a second elastic element is provided between the second frame and the first frame. The second central shaft is rotatably mounted on the second frame, and four sets of rollers are provided on the second central shaft; A raised strip is provided on the roller and is used to indent the paper. A counterweight is provided on the roller. A limiting track is provided on the second hanger and is used to drive the vertical rod to descend sequentially with the rollers at gradually decreasing horizontal intervals.

[0013] Preferably, the folding mechanism includes a positioning component disposed on the frame for fixing the cardboard and a folding component disposed on the positioning component for folding the paper sheet; The positioning component includes: A third lifting unit is mounted on the frame; The third hanger is located at the output end of the third lifting unit; The positioning rods, two sets of which are symmetrically arranged on the third hanger, are used to press down the paper strips adhered to the cardboard for positioning.

[0014] Preferably, the folding assembly includes: The fourth horizontal drive unit, two sets of the fourth horizontal drive units are symmetrically arranged on the third hanger; The third frame is located at the output end of the fourth horizontal drive unit, and a fourth hydraulic component is provided on the third frame; The fourth frame is located at the output end of the fourth hydraulic component. The fourth frame is equipped with four sets of vertical plates. A slider is slidably mounted on the vertical plate through a sliding hole. A third elastic element is provided between the slider and the upper end of the sliding hole. A cube is rotatably mounted on the slider. A second suction hole is provided at the bottom of the cube. A second vacuum pump is provided on the third frame. A third motor is provided on the slider. The third motor is used to drive the cube to rotate. The four sets of glue-applying rollers are rotatably mounted on the vertical plate and are used to apply glue to the paper. The third frame is equipped with a glue box.

[0015] The beneficial effects of this invention are: (1) In this invention, by combining the reinforcement mechanism and the cutting mechanism, on the one hand, the paper edge strip and the mesh can be used to reinforce the indentation at the opening of the carton, increase the structural strength of the indentation, reduce the cracking of the corners of the carton, and improve the protective effect of the carton on the goods; on the other hand, the two sides of the inner flap can be cut and the paper edge strip can be folded into inner lining blocks. The inner lining blocks on both sides of the inner flap can be used to support the corners of the carton, prevent the corners of the carton from collapsing and deforming, improve the strength of the carton, and ensure the integrity of the carton during use. (2) In this invention, by combining the suction and bonding components, on the one hand, the paper strip can be covered with a mesh and the bottom of the paper strip can be coated with glue to increase the structural strength of the paper strip, improve the tear resistance of the paper strip, and prevent the paper strip from breaking; on the other hand, the paper strip covered with the mesh can be divided into two parts, and the two separated paper strips can be bonded to the cardboard indentation at the two openings of the carton to reinforce the cardboard indentation. The automation is high.

[0016] In summary, this invention has the advantages of high automation, good positioning effect, and good die-cutting accuracy, and is especially suitable for the field of paper-based die-cutting technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure after die-cutting the paper base.

[0019] Figure 2 This is a schematic diagram of the reinforced cardboard structure.

[0020] Figure 3 This is a schematic diagram of an automated die-cutting device for paper-based packaging.

[0021] Figure 4 This is a schematic diagram of the die-cutting mechanism.

[0022] Figure 5 This is a schematic diagram of the slitting roller.

[0023] Figure 6 This is a schematic diagram of the reinforcement mechanism.

[0024] Figure 7 This is a schematic diagram of the structure of the first lifting unit.

[0025] Figure 8 This is a schematic diagram of the suction and lifting assembly.

[0026] Figure 9 for Figure 8 A structural diagram from an upward perspective.

[0027] Figure 10 This is a schematic diagram of the adhesive assembly.

[0028] Figure 11 This is a schematic diagram of the edge-cutting mechanism.

[0029] Figure 12 This is a schematic diagram of the structure of the trace-repairing component.

[0030] Figure 13 This is a schematic diagram of the edge-reserving component.

[0031] Figure 14 This is a schematic diagram of the roller structure.

[0032] Figure 15 This is a schematic diagram of the folding mechanism.

[0033] Figure 16 This is a schematic diagram of the folding component.

[0034] Figure 17 This is a schematic diagram of the adhesive roller.

[0035] Figure 18 This is a schematic diagram of the cube's structure.

[0036] Figure 19 This is a flowchart illustrating an automated die-cutting process for paper-based packaging. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] Example 1 like Figures 1-18 As shown, an automated die-cutting device for paper-based packaging includes a conveying mechanism 1, and a die-cutting mechanism 2, a reinforcing mechanism 3, a cutting mechanism 4, and a folding mechanism 5 arranged sequentially along the paper-based conveying direction. The reinforcing mechanism 3 includes a suction and lifting assembly 31 mounted on a frame 11 for lifting paper strips and an adhesive assembly 32 mounted on the suction and lifting assembly 31 for bonding the paper strips with mesh. The conveying mechanism 1 includes a conveyor belt 12 mounted on the frame 11.

[0039] In this embodiment, the reinforcement mechanism 3 and the trimming mechanism 4 work together to reinforce the indentation at the opening of the carton by combining paper edge strips and mesh, increasing the structural strength of the indentation, reducing the chance of cracking at the corners of the carton, and improving the carton's protective effect on the goods. On the other hand, the inner flaps are trimmed on both sides, and the paper edge strips are folded into inner lining blocks. The inner lining blocks on both sides of the inner flaps support the corners of the carton, preventing the corners of the carton from collapsing and deforming, thus improving the strength of the carton and ensuring its integrity during use.

[0040] In detail, firstly, the conveying mechanism 1 intermittently transports the paper base to each workstation. Then, the die-cutting mechanism 2 intermittently cuts the paper base into cardboard for assembling cartons and performs creasing and slitting on the cardboard, leaving paper strips between adjacent cardboards. Then, the reinforcing mechanism 3 glues mesh to the surface of the paper strips and divides the paper strips in half. The paper strips are then glued sequentially to the cardboard creasing at the opening of the carton. Next, the edge-cutting mechanism 4 trims the edges on both sides of the inner flap to form two paper pieces, and presses creases with progressively larger spacing on the paper pieces. Then, the folding mechanism 5 folds the paper pieces sequentially from one end along the creases to the cardboard creasing at the opening of the carton, and applies glue to the surface of the paper pieces, folding the paper pieces into three-dimensional inner lining blocks.

[0041] Furthermore, such as Figures 3-5 As shown, the die-cutting mechanism 2 includes: The chassis 21 is mounted on the frame 11, and power boxes 22 are mounted on both inner side walls of the chassis 21. The slitting roller 23 is rotatably disposed between the two power boxes 22. A second motor is provided inside one of the power boxes 22, which is used to drive the slitting roller 23 to rotate. Cross-cutting blades 24, two sets of cross-cutting blades 24 are symmetrically arranged on the slitting roller 23 and are used to cut strips of paper between two adjacent cardboards; Two sets of transverse pressure strips 25 are symmetrically arranged on the slitting roller 23 and are used to make indentations at the opening of the carton. The four sets of axial cutters 26 are arranged along the circumferential direction on the slitting roller 23 and are located between the cross cutter 24 and the cross pressure bar 25, for cutting the flaps at the opening of the carton; Shaft pressure strips 27, four sets of shaft pressure strips 27 are arranged along the circumferential direction on the slitting roller 23 and located between two sets of horizontal pressure strips 25, for creasing the four vertical edges of the carton; The third hydraulic component 28, two sets of the third hydraulic components 28 are mounted on the housing 21 and are used to drive the power box 22 to lift and lower the slitting roller 23.

[0042] In this embodiment, the die-cutting mechanism 2 and the conveying mechanism 1 work together to automatically cut the paper base into individual cardboard pieces that can be assembled into cartons, and to perform creasing and slitting on the cardboard pieces. A strip of paper is cut between two adjacent cardboard pieces, resulting in a high degree of automation and good cutting accuracy.

[0043] In detail, the conveyor belt 12 of the conveying mechanism 1 carries the paper base forward intermittently. The third hydraulic component 28 drives the slitting roller 23 to descend onto the paper base on the conveyor belt 12. At the same time, the second motor drives the slitting roller 23 to rotate. Two sets of cross-cutting blades 24 cut two adjacent pieces of cardboard that are combined to form a carton, leaving a strip of paper between the two adjacent pieces of cardboard. Two sets of cross-pressing strips 25 crease the opening of the carton. The axial cutter 26 cuts the inner flap and outer flap of the carton. The axial pressing strips 27 crease the four vertical sides of the carton, thereby completing the cutting and creasing of the cardboard.

[0044] Furthermore, such as Figures 6-10 As shown, the suction and hanging assembly 31 includes: The first lifting unit 311 is mounted on the frame 11; The first hanger 312 is disposed at the output end of the first lifting unit 311; Two sets of hanging plates 313 are symmetrically raised and lowered on the first hanger 312 via a sliding groove, and a first elastic element 314 is provided between the hanging plate 313 and the upper end of the sliding groove; A first suction hole 315, several sets of first suction holes 315 are provided at the bottom of the hanging plate 313, and a first vacuum pump is provided on the hanging plate 313. The first vacuum pump is connected to the first suction hole 315 through a hose. L-shaped hanging rods 316, two sets of L-shaped hanging rods 316 are symmetrically arranged on the hanging plate 313; Turntable 317, two sets of turntables 317 are symmetrically rotated on the first hanger 312, and the two sets of turntables 317 rotate synchronously through a coupling. The first hanger 312 is equipped with a first motor 318, which is used to drive the turntables 317 to work. Two sets of outer edge rods 319 are symmetrically arranged on the turntable 317 and are used to drive the L-shaped hanging rod 316 to lift the hanging plate 313.

[0045] It should be noted that the first lifting unit 311 includes a gantry frame 3111 mounted on the frame 11 and a hydraulic rod 3112 mounted on the gantry frame 3111.

[0046] It is worth mentioning that the structures of the second lifting unit 411 and the third lifting unit 511 are the same as those of the first lifting unit 311, and will not be described again.

[0047] The adhesive component 32 includes: A first horizontal drive unit 321 is mounted on the first hanger 312; An extension plate 322 is disposed at the output end of the first horizontal drive unit 321, and a first hydraulic component 323 is disposed on the extension plate 322. A corner plate 324 is provided at the output end of the first hydraulic component 323, and a second hydraulic component 325 is provided on the corner plate 324; Mounting bracket 326 is provided at the output end of the second hydraulic component 325. A winding roller 327 is provided on the mounting bracket 326, and a mesh is wound on the winding roller 327. A glue-applying roller 328 is rotatably mounted on the mounting frame 326 and is used to apply glue to the bottom of the paper strip. The end of the glue-applying roller 328 is provided with a glue injection hole for adding glue into the glue-applying roller 328. A pressing roller 329 is rotatably mounted on the mounting frame 326. The pressing roller 329 cooperates with the glue coating roller 328 to clamp the conveying mesh. The pressing roller 329 is used to adhere the mesh to the bottom of the paper strip. The second horizontal drive unit 3291 is disposed on the mounting bracket 326; A cross-cutting head 3292 is disposed at the output end of the second horizontal drive unit 3291 and is used to split the paper strip in two along the gap between the two sets of hanging plates 313, and is also used to cut the mesh.

[0048] It should be noted that the first horizontal drive unit 321 includes a lead screw 3211, a threaded block 3212 threaded onto the lead screw 3211, and a stepper motor 3213 for driving the lead screw 3211 to rotate.

[0049] It is worth mentioning that the structures of the second horizontal drive unit 3291, the third horizontal drive unit 421, and the fourth horizontal drive unit 521 are all the same as those of the first horizontal drive unit 321, and will not be described again.

[0050] In this embodiment, the suction and hanging component 31 and the bonding component 32 work together to, on the one hand, adhere the mesh to the paper strip and apply glue to the bottom of the paper strip to increase the structural strength of the paper strip, improve the tear resistance of the paper strip, and prevent the paper strip from breaking; on the other hand, the paper strip after the mesh is adhered can be divided into two parts, and the two separated paper strips can be bonded to the cardboard indentations at the two openings of the carton to reinforce the cardboard indentations.

[0051] In detail, the conveyor belt 12 of the conveying mechanism 1 carries the paper strip between two adjacent cardboards forward to a position directly below the suction and lifting assembly 31 and then stops. The first lifting unit 311 drives the hanging plate 313 to descend onto the paper strip. The hanging plate 313 sucks the paper strip through the first suction hole 315. The first lifting unit 311 drives the hanging plate 313 to rise, and the hanging plate 313 lifts the paper strip. The first hydraulic component 323 drives the glue coating roller 328 and the pressing roller 329 to descend. The second hydraulic component 325 drives the glue coating roller 328 and the pressing roller 329 to move horizontally, so that the glue coating roller 328 and the pressing roller 329 are in contact with the bottom of the paper strip. The first horizontal drive unit 321 drives the glue coating roller 328 and the pressing roller 329 to be in contact. As the paper strip moves along its bottom, the gluing roller 328 applies glue to the bottom of the paper strip. Simultaneously, the gluing roller 328 and the pressing roller 329 clamp the conveying mesh, and the pressing roller 329 adheres the mesh to the bottom of the paper strip. The cross-cutting head 3292 cuts the paper strip and mesh in two along the gap between the two sets of hanging plates 313. After the mesh adheres to the other end of the paper strip, the second horizontal drive unit 3291 drives the cross-cutting head 3292 to reciprocate horizontally, causing the cross-cutting head 3292 to cut the mesh. The gluing roller 328 and the pressing roller 329 clamp the cut end of the mesh for the next use. Then, the second hydraulic component 325 drives the gluing roller 328 and the pressing roller 329 to move horizontally back to their original positions, detaching them from the paper strip. At the bottom, the first hydraulic component 323 drives the glue-applying roller 328 and the pressing roller 329 to rise and reset. Then, the conveyor belt 12, carrying the cardboard with its indentation, advances to a position below the hanging plate 313 and stops. The first motor 318 drives the turntable 317 to rotate at a specified angle, causing one outer edge rod 319 of the turntable 317 to raise the left hanging plate 313 via the L-shaped hanging rod 316 to avoid a collision. Then, the first lifting unit 311 drives both hanging plates 313 to descend simultaneously, causing the paper strip at the bottom of the right hanging plate 313 to press against the indentation on the cardboard. The first lifting unit 311 drives both hanging plates 313 to rise and reset simultaneously. Then, the conveyor belt 12, carrying the other indentation on the cardboard, advances to the hanging plate. After stopping at the lower position of 313, the first motor 318 drives the turntable 317 to rotate in the opposite direction by a specified angle, so that the other outer edge rod 319 of the turntable 317 drives the right hanging plate 313 to rise through the L-shaped hanging rod 316 to avoid the obstacle. The first lifting unit 311 drives the two hanging plates 313 to descend simultaneously, so that the paper strip at the bottom of the left hanging plate 313 is pressed against another crease on the cardboard, thereby pasting the two paper strips onto the creases at the two openings of the carton in sequence. The first motor 318 drives the turntable 317 to drive the two hanging plates 313 to be level again through the outer edge rod 319 and the L-shaped hanging rod 316. The first lifting unit 311 drives the two hanging plates 313 to rise and reset, ready for the next use.

[0052] Furthermore, such as Figures 11-12As shown, the edge-cutting mechanism 4 includes a creasing assembly 41 disposed on the frame 11 for creasing the paper strips adhered to the cardboard, and an edge-retaining assembly 42 disposed on the creasing assembly 41 for cutting the edges of both sides of the inner flap. The trace-repairing component 41 includes: The second lifting unit 411 is mounted on the frame 11; The second hanger 412 is disposed at the output end of the second lifting unit 411; Pressure bars 413, two sets of pressure bars 413 are symmetrically arranged on the second hanger 412 by means of hangers, and are used to crease the paper strips adhered to the cardboard.

[0053] In this embodiment, the crease-pressing component 41 can not only crease the paper strips adhered to the cardboard, making it easier for the cardboard to be folded and assembled into a carton, but also position the cardboard to facilitate the cutting of the inner flap.

[0054] In detail, the conveyor belt 12 carries the cardboard forward to a position directly below the creasing assembly 41 and then stops. The second lifting unit 411 drives the pressure bar 413 to descend, so that the two sets of pressure bars 413 press down on the paper strips adhered to the cardboard, positioning the cardboard and creasing the paper strips.

[0055] Furthermore, such as Figures 11-14 As shown, the edge-keeping component 42 includes: The third horizontal drive unit 421, two sets of the third horizontal drive units 421 are symmetrically arranged on the second hanger 412; The first frame 422 is disposed at the output end of the third horizontal drive unit 421; A first central shaft 423 is rotatably mounted on the first frame 422, and four sets of cutting blades 424 are provided on the first central shaft 423. A vertical rod 425 is provided, which is through and vertically mounted on the first frame 422. A second frame 426 is provided at the lower end of the vertical rod 425. A second elastic member is provided between the second frame 426 and the first frame 422. The second central shaft 427 is rotatably mounted on the second frame 426, and four sets of rollers 428 are provided on the second central shaft 427. A raised strip 429 is provided on the roller 428 and is used to indent the paper. A counterweight 4291 is provided on the roller 428. The limiting track 4292 is set on the second hanger 412 and is used to drive the vertical rod 425 to descend sequentially with the rollers 428 at gradually decreasing horizontal intervals.

[0056] It should be noted that the counterweight 4291 set on the roller 428 ensures that the position of the protrusion 429 on the roller 428 is uniform when the roller 428 is suspended in the air. That is, when the roller 428 descends to the inner flap, the counterweight 4291 always contacts the inner flap first. As the roller 428 rolls on the inner flap, the protrusion 429 presses creases on the inner flap. That is, from the time the counterweight 4291 contacts the inner flap to the time the protrusion 429 presses creases on the inner flap, the rolling distance of the roller 428 is uniform, thus determining the position of each crease on the inner flap.

[0057] In this embodiment, by using the crease-removing component 41 and the edge-keeping component 42 together, not only can the four inner flaps be trimmed at the same time, saving time, but the paper pieces generated by the trimming can also be pressed down to create creases, and the spacing between the creases on the paper pieces gradually changes.

[0058] In detail, after the cardboard is positioned by the anti-marking component 41, the cutting blade 424 of the first central shaft 423 presses onto the inner flap. Then, the third horizontal drive unit 421 drives the first central shaft 423 to roll on the inner flap, and the cutting blade 424 cuts the edges of both sides of the inner flap. At the same time, the vertical rod 425, driven by the limiting rail 4292, lowers the rollers 428 in sequence with gradually decreasing horizontal spacing. The counterweight 4291 at the bottom of the rollers 428 contacts the inner flap first. As the rollers 428 roll on the inner flap, the protrusion 429 presses creases on the inner flap, thereby pressing creases with gradually decreasing horizontal spacing on the paper pieces produced by the cutting edges on both sides of the inner flap.

[0059] Furthermore, such as Figure 15 As shown, the folding mechanism 5 includes a positioning component 51 disposed on the frame 11 for fixing the cardboard and a folding component 52 disposed on the positioning component 51 for folding the paper. The positioning component 51 includes: The third lifting unit 511 is mounted on the frame 11; The third hanger 512 is disposed at the output end of the third lifting unit 511; Positioning rods 513, two sets of positioning rods 513 are symmetrically arranged on the third hanger 512, and are used to press down the paper strips adhered to the cardboard for positioning.

[0060] In this embodiment, the positioning component 51 can be used to position the cardboard, preventing the cardboard from shifting when the folding component 52 folds the paper.

[0061] In detail, the conveyor belt 12 carries the cardboard forward to a position directly below the positioning component 51 and then stops. The third lifting unit 511 drives the positioning rod 513 to descend, so that the positioning rod 513 presses down onto the paper strips adhered to the cardboard to position the cardboard.

[0062] Furthermore, such as Figures 15-18 As shown, the folding assembly 52 includes: The fourth horizontal drive unit 521, two sets of the fourth horizontal drive units 521 are symmetrically arranged on the third hanger 512; The third frame 522 is disposed at the output end of the fourth horizontal drive unit 521, and the third frame 522 is provided with a fourth hydraulic component 523; The fourth frame 524 is disposed at the output end of the fourth hydraulic component 523. Four sets of vertical plates 525 are disposed on the fourth frame 524. A slider 526 is slidably disposed on the vertical plate 525 through a sliding hole. A third elastic element is disposed between the slider 526 and the upper end of the sliding hole. The block 527 is rotatably mounted on the slider 526. The bottom of the block 527 is provided with a second suction hole 528. The fourth frame 524 is provided with a second vacuum pump 529. The slider 526 is provided with a third motor 5291, which is used to drive the block 527 to rotate. The four sets of glue-applying rollers 5292 are respectively rotatably mounted on the vertical plate 525 and are used to apply glue to the paper. The third frame 522 is equipped with a glue box 5293.

[0063] It should be noted that the block 527 is rotatably mounted on the slider 526 via a rotating shaft. The second vacuum pump 529 is connected to the second suction hole 528 at the bottom of the block 527 via an air pipe. The air pipe is pre-wound on the rotating shaft and passes through the end of the block 527 to avoid the air pipe interfering with the rotation of the block 527 a certain number of times.

[0064] In this embodiment, the positioning component 51 and the folding component 52 work together to automatically fold the paper into an inner lining block and demold and shape the inner lining block, which is highly automated.

[0065] In detail, after the positioning component 51 positions the cardboard, the cube 527 descends onto the paper. The second suction hole 528 of the cube 527 sucks on one end of the paper with smaller crease spacing. The fourth horizontal drive unit 521 drives the cube 527 to move horizontally. At the same time, the third motor 5291 drives the cube 527 to rotate slowly, causing the cube 527 to roll on the paper. This allows the cube 527 to fold the cardboard along the creases on the paper, and the cardboard wraps around the cube 527. Meanwhile, the glue roller 5292 applies glue to the paper, shaping the inner liner block formed by the folding of the cardboard by the cube 527. Finally, the second suction hole 528 of the cube 527 releases the inner liner block, and the fourth hydraulic component 523 drives the fourth frame 524 to move the cube 527 horizontally away from the inner liner block, completing the demolding process. After the inner liner block is assembled into a carton, it serves to support the corners of the carton.

[0066] Example 2 like Figure 19 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: like Figure 19 As shown, an automated die-cutting process for paper-based packaging includes the following steps: Step 1, conveying process: conveying mechanism 1 intermittently transports the paper base to each workstation; Step 2, die-cutting process: Die-cutting mechanism 2 intermittently cuts the paper base into cardboard for assembling cartons, and performs creasing and slitting treatment on the cardboard, leaving paper strips between adjacent cardboards; Step 3, the crease reinforcement process: the reinforcement mechanism 3 glues mesh to the surface of the paper strips and divides the paper strips in half, and then glues the paper strips to the creases on the cardboard at the opening of the carton in turn; Step 4, inner flap trimming process: the trimming mechanism 4 trims the edges of both sides of the inner flap to form two paper pieces, and presses creases with progressively larger spacing on the paper pieces. Step 5, inner lining block folding process: The folding mechanism 5 folds the paper piece from one end along the crease to the cardboard crease at the opening of the carton, and applies glue to the surface of the paper piece to fold it into a three-dimensional inner lining block.

[0067] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0068] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the number.

[0069] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A paper-based packaging automated die cutting apparatus, characterized by, It includes a conveying mechanism, and a die-cutting mechanism, a reinforcing mechanism, an edge-cutting mechanism, and a folding mechanism arranged sequentially along the paper base conveying direction; The reinforcement mechanism includes a suction and lifting assembly mounted on the frame for suspending the paper strip, and an adhesive assembly mounted on the suction and lifting assembly for bonding the paper strip with a mesh screen. The cutting mechanism includes a creasing assembly mounted on the frame for creasing paper strips adhered to the cardboard, and a trimming assembly mounted on the creasing assembly for cutting the edges of both sides of the inner flap. The trace-repairing component includes: The second lifting unit is mounted on the frame. The second hanger is located at the output end of the second lifting unit; Two sets of pressure bars are symmetrically arranged on the second hanger via a suspension rod and are used to indent the paper strips adhered to the cardboard. The margin component includes: The third horizontal drive unit, two sets of the third horizontal drive units are symmetrically arranged on the second hanger; The first frame is disposed at the output end of the third horizontal drive unit; A first central shaft is rotatably mounted on the first frame, and four sets of cutting blades are mounted on the first central shaft. A vertical pole is provided, which is connected through and raised and lowered on the first frame. A second frame is provided at the lower end of the vertical pole, and a second elastic element is provided between the second frame and the first frame. The second central shaft is rotatably mounted on the second frame, and four sets of rollers are provided on the second central shaft; A raised strip is provided on the roller and is used to indent the paper. A counterweight is provided on the roller. A limiting track is provided on the second hanger and is used to drive the vertical rod to descend sequentially with the rollers at gradually decreasing horizontal intervals.

2. A paper-based packaging automated die cutting apparatus according to claim 1, wherein, The suction and hanging assembly includes: A first lifting unit is mounted on the frame. The first hanger is installed at the output end of the first lifting unit; Two sets of hanging plates are symmetrically raised and lowered on the first hanger via a sliding groove, and a first elastic element is provided between the hanging plate and the upper end of the sliding groove; A first suction hole, several sets of first suction holes are arranged at the bottom of the hanging plate, and a first vacuum pump is provided on the hanging plate. The first vacuum pump is connected to the first suction hole through a hose. L-shaped hanging rods, with two sets of L-shaped hanging rods symmetrically arranged on the hanging plate; The turntables are symmetrically arranged on the first hanger and rotate synchronously through a coupling. The first hanger is equipped with a first motor, which is used to drive the turntables to work. The outer edge rods, two sets of which are symmetrically arranged on the turntable, are used to drive the L-shaped hanging rod to lift the suspended plate.

3. A paper-based packaging automated die cutting apparatus according to claim 2, wherein, The bonding assembly includes: A first horizontal drive unit is mounted on the first hanger; An extension plate is disposed at the output end of the first horizontal drive unit, and a first hydraulic component is disposed on the extension plate; A corner plate is provided at the output end of the first hydraulic component, and a second hydraulic component is provided on the corner plate; Mounting frame, the mounting frame is set at the output end of the second hydraulic component, and a winding roller is provided on the mounting frame, on which a mesh is wound; A glue-applying roller, which is rotatably mounted on the mounting frame and is used to apply glue to the bottom of the paper strip; A pressing roller is rotatably mounted on the mounting frame. The pressing roller cooperates with the glue-applying roller to clamp the conveying mesh. The pressing roller is used to adhere the mesh to the bottom of the paper strip. A second horizontal drive unit is disposed on the mounting bracket; A cross-shaped cutter head is located at the output end of the second horizontal drive unit and is used to split the paper strip in two along the gap between the two sets of hanging plates, and also to cut the mesh.

4. A paper-based packaging automated die cutting apparatus according to claim 1, wherein, The die-cutting mechanism includes: A chassis is mounted on the frame, and power boxes are mounted on both inner side walls of the chassis. The slitting roller is rotatably positioned between the two power boxes. A second motor is installed inside one of the power boxes to drive the slitting roller to rotate. Cross-cutting blades, two sets of cross-cutting blades are symmetrically arranged on the slitting roller and are used to cut strips of paper between two adjacent cardboards; Two sets of transverse pressure strips are symmetrically arranged on the slitting roller and are used to make indentations at the opening of the carton; The four sets of axial cutters are arranged circumferentially on the slitting roller and located between the cross cutter and the cross pressure bar, for cutting the flaps at the opening of the carton; The four sets of axial pressure strips are arranged along the circumferential direction on the slitting roller and located between the two sets of transverse pressure strips, for creasing the four vertical edges of the carton; The third hydraulic component, consisting of two sets of the third hydraulic components, is mounted on the machine housing and is used to drive the power box to lift and lower the slitting roller.

5. A paper-based packaging automated die cutting apparatus according to claim 1, wherein, The folding mechanism includes a positioning component mounted on the frame for fixing the cardboard and a folding component mounted on the positioning component for folding the paper. The positioning component includes: A third lifting unit is mounted on the frame; The third hanger is located at the output end of the third lifting unit; The positioning rods, two sets of which are symmetrically arranged on the third hanger, are used to press down the paper strips adhered to the cardboard for positioning.

6. A paper-based packaging automated die cutting apparatus according to claim 5, wherein, The folding assembly includes: The fourth horizontal drive unit, two sets of the fourth horizontal drive units are symmetrically arranged on the third hanger; The third frame is located at the output end of the fourth horizontal drive unit, and a fourth hydraulic component is provided on the third frame; The fourth frame is located at the output end of the fourth hydraulic component. The fourth frame is equipped with four sets of vertical plates. A slider is slidably mounted on the vertical plate through a sliding hole. A third elastic element is provided between the slider and the upper end of the sliding hole. A cube is rotatably mounted on the slider. A second suction hole is provided at the bottom of the cube. A second vacuum pump is provided on the third frame. A third motor is provided on the slider. The third motor is used to drive the cube to rotate. The four sets of glue-applying rollers are rotatably mounted on the vertical plate and are used to apply glue to the paper. The third frame is equipped with a glue box.

7. A paper-based packaging automation die-cutting process applied to a paper-based packaging automation die-cutting device according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1, conveying process: the conveying mechanism intermittently transports the paper base to each workstation; Step 2, die-cutting process: The die-cutting mechanism intermittently cuts the paper base into cardboard for assembling cartons, and performs creasing and slitting on the cardboard, leaving paper strips between adjacent cardboard pieces; Step 3, the creasing and reinforcement process: the reinforcement mechanism glues a mesh to the surface of the paper strip and divides the paper strip in half. Then, the paper strips are glued to the cardboard creasing at the opening of the carton in turn. Step 4, inner flap trimming process: The trimming mechanism trims the edges of both sides of the inner flap to form two paper pieces, and presses creases with progressively larger spacing on the paper pieces. Step 5, the inner lining block folding process: the folding mechanism folds the paper piece from one end along the crease to the cardboard crease at the opening of the carton, and applies glue to the surface of the paper piece to fold it into a three-dimensional inner lining block.

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