Tail-free paper receiving machine

Abstract

The invention relates to the technical field of paper receiving machines, and particularly discloses a tailless paper receiving machine which comprises a rack. The paper pressing and cutting module is provided with a paper pressing and cutting assembly and a paper pressing assembly, the paper pressing and cutting assembly and the paper pressing assembly synchronously move on the rack, the paper pressing and cutting assembly comprises an upper pressing wheel and a cutter which can synchronously swing, and the paper pressing assembly is arranged in an up-down swinging mode and used for abutting against old paper on the cutter holder; the lower pressing wheel assemblies are symmetrically arranged at the two ends of the rack, and the lower pressing wheel assemblies are located below the paper pressing and cutting module; the tool apron assembly is located on one side of the lower pressing wheel assembly, the tool apron assembly is arranged at the two ends of the rack in a swinging mode, and the tool apron assembly comprises a tool apron capable of swinging; according to the tailless paper receiving machine, the action of tightening old paper is integrated to the paper cutting action, the overall structure is more compact, compared with a traditional paper receiving machine, the tailless paper receiving machine is simpler, the equipment cost is reduced, meanwhile, the paper receiving efficiency is improved, a paper cutting opening is smoother, and the phenomenon that due to the fact that the paper cutting opening is irregular, a tail is generated after paper receiving is eradicated.

Description

Technical Field

[0001] This invention relates to the field of paper splicing machine technology, and more particularly, to a tailless paper splicing machine. Background Technology

[0002] A splicing machine is used in corrugated cardboard production to continuously connect new and old paper rolls. However, existing splicing machine structures typically incorporate complex tension buffering mechanisms to improve tension during cutting. For example, Chinese patent document CN208843395U discloses a fully automatic tailless splicing machine with a buffering mechanism. This mechanism requires adjustment during splicing, resulting in a relatively complex structure, high equipment cost, and relatively slow cutting efficiency. Furthermore, without a tension adjustment mechanism, insufficient tension after cutting can lead to uneven cuts and a "tail" after splicing, affecting the quality of subsequent products. Summary of the Invention

[0003] In order to overcome the defects of the existing technology, the present invention provides a tailless paper splicing machine, which aims to solve the problems in the above-mentioned existing technology.

[0004] The technical solution adopted by this invention to solve its technical problem is: a tailless paper splicing machine, comprising: A frame, wherein racks are provided on both sides of the frame; A paper pressing and cutting module is provided with a paper pressing and cutting component and a paper pressing component. The paper pressing and cutting component and the paper pressing component move synchronously on a rack. The paper pressing and cutting component includes an upper pressure roller and a cutter that can swing synchronously. The paper pressing component is set to swing up and down and is used to abut against old paper on the cutter holder. The lower pressure roller assembly is symmetrically arranged at both ends of the frame. The lower pressure roller assembly is located below the paper pressing and cutting module. The lower pressure roller assembly includes a swingable lower pressure roller. The upper pressure roller can move above the lower pressure roller and abut against the upper pressure roller by swinging, so that the contact surface of the upper pressure roller and the lower pressure roller abut against each other is located on the side of the longitudinal central axis of the lower pressure roller away from the cutter. A blade holder assembly is located on one side of the pressure roller assembly. The blade holder assembly is swayably mounted at both ends of the frame. The blade holder assembly includes a swayable blade holder that moves closer to or away from the pressure roller. A cutting groove is provided on the upper end face of the blade holder near the pressure roller.

[0005] After the present invention achieves the above technical solution, the paper pressing and cutting module can drive the paper pressing and cutting assembly and the paper pressing assembly to move along the length of the rack on the frame, so as to switch to the lower pressure roller assembly and the knife holder assembly at one end of the frame. This allows for switching between work positions on the frame, improving work efficiency. Moreover, during the synchronous downward swing of the upper pressure roller and the cutter, the upper pressure roller first abuts against the lower pressure roller, pressing the old paper and the new paper together tightly. During the continuous downward swing, the lower pressure roller swings down synchronously, causing the contact surface to be continuously pulled down and tightened. At the same time, the paper pressing assembly abuts against the old paper on the knife holder, thus tightening the old paper on the knife holder. At this time, during the continuous downward swing of the upper and lower pressure rollers, the cutter reaches the cutter groove and cuts the old paper. The paper cutting and splicing process can be completed during the continuous downward pressing process. Furthermore, the action of tightening the old paper is integrated into the paper cutting action, improving the overall paper splicing efficiency. At the same time, the paper cut is flatter, eliminating the "tail" after splicing due to uneven paper cut.

[0006] In the aforementioned tailless paper splicing machine, the paper pressing and cutting assembly and the paper pressing assembly are hinged between the side plates at both ends. Two sets of clamps are installed on the side plates. Each set of clamps includes a gear and a support wheel. The lower end face of the rack is provided with teeth. The support wheel is mounted on the upper end of the rack. The gear meshes with the teeth.

[0007] After implementing the above technical solution, the entire paper pressing and cutting module can reciprocate through the rotation of gears, so as to switch between different paper receiving stations.

[0008] In the aforementioned tailless paper splicing machine, the paper pressing and cutting assembly includes a first double-acting cylinder located on both sides of the frame. The output shafts at both ends of the first double-acting cylinder are symmetrically connected to one end of a first swing arm. The other ends of the two first swing arms are hinged to each other through a first hinge shaft. The upper pressure roller is mounted on the first swing arm. A cutter beam mounted on the first swing arm is provided on one side of the upper pressure roller. The cutter is mounted on the cutter beam. The first hinge shaft is hinged to the side plate.

[0009] After implementing the above technical solution, the first double-acting cylinder can drive the first swing arms at both ends to swing, thereby driving the corresponding upper pressure wheel and cutter to swing synchronously through the corresponding first swing arms.

[0010] In the aforementioned tailless paper splicing machine, the paper pressing assembly includes a second double-acting cylinder located on both sides of the frame. The output shafts at both ends of the second double-acting cylinder are symmetrically provided with second swing arms. The lower end of the second swing arm is hinged to the side plate through a second hinge shaft. A paper pressing seat is installed on the second swing arm. A paper pressing strip is provided at the lower end of the paper pressing seat. The pressing strips on both sides are respectively distributed on both sides of the paper pressing and cutting assembly.

[0011] After implementing the above technical solution, the second double-acting cylinder drives the corresponding paper pressing strip at one end to swing, so that the paper pressing strip presses the old paper on the knife holder tightly, so that the other end of the old paper can be tensioned during the pull-down process.

[0012] In the aforementioned tailless paper splicing machine, the pressure strip is made of silicone.

[0013] In the aforementioned tailless paper splicing machine, the lower pressure roller assembly further includes a third swing arm located on both sides of the frame, the upper pressure roller is installed between the two third swing arms, the third swing arm is hinged to the frame via a third hinge shaft, the lower end of the third swing arm is provided with a first cylinder connecting shaft, the first cylinder connecting shaft is connected to the output shaft of a first cylinder, and the first cylinder is hinged to the frame.

[0014] After implementing the above technical solution, the first cylinder drives the third swing arm to swing, which in turn drives the upper pressure roller to adjust its position so that after the upper pressure roller comes into contact with the lower pressure roller, it can swing further downwards and tighten the old paper.

[0015] In the aforementioned tailless paper splicing machine, the knife holder assembly further includes knife holder connecting plates located on both sides of the frame. The lower ends of the two knife holder connecting plates are hinged to the frame via a fourth hinge shaft. The knife holder is installed between the two knife holder connecting plates. A second cylinder connecting shaft is installed on the knife holder connecting plate. The second cylinder connecting shaft is connected to the output shaft of a second cylinder. The second cylinder is hinged to the frame.

[0016] After implementing the above technical solution, the second cylinder drives the knife holder connecting plate to swing, which makes it easy to move the knife holder away from or closer to the pressure roller, so as to provide enough space for the operator to put in new paper.

[0017] In the aforementioned tailless paper splicing machine, a paper-fixing assembly is also provided between the knife holder connecting plates on both sides. The paper-fixing assembly swings towards the downward pressure roller, so that the paper-fixing assembly and the downward pressure roller clamp the new paper.

[0018] After implementing the above technical solution, the new paper can be stabilized on the surface of the lower pressure roller by the paper fixing assembly, preventing the new paper from falling off the surface of the lower pressure roller, so as to facilitate paper splicing.

[0019] In the aforementioned tailless paper splicing machine, the paper fixing assembly includes a paper clamping seat. The upper end of the paper clamping seat is hinged to the upper inner side of the knife holder connecting plate via a fifth hinge shaft. The lower end of the paper clamping seat is hinged to the output shaft of a third cylinder, which is hinged to the knife holder connecting plate. A paper fixing plate is provided on the side of the paper clamping seat facing the lower pressure roller.

[0020] After implementing the above technical solution, the third cylinder drives the paper clamp to swing, which facilitates the insertion of new paper into the paperboard and clamps the new paper securely, preventing paper splicing failure.

[0021] The beneficial effects of this invention are as follows: the action of tightening old paper is integrated into the paper cutting action, the overall structure is more compact, it is simpler than the traditional paper splicing machine, the equipment cost is reduced, the paper splicing efficiency is improved, the paper cutting edge is flatter, and the "tail" after paper splicing is eliminated due to the uneven paper cutting edge. Attached Figure Description

[0022] Figure 1 This is a side view of the tailless paper splicing machine of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the paper pressing and cutting module, the lower pressure roller assembly, and the knife holder assembly of the present invention.

[0024] Figure 3 This is a side view of the paper pressing and cutting module, the lower pressure roller assembly, and the knife holder assembly of the present invention.

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the paper cutting component.

[0026] Figure 5 This is a three-dimensional structural diagram of the paper pressing assembly.

[0027] Figure 6 This is a three-dimensional structural diagram of the pressure roller assembly and the tool holder assembly.

[0028] In the diagram: 1. Frame; 2. Rack; 3. Paper pressing and cutting module; 4. Lower pressure roller assembly; 5. Knife holder assembly; 6. Paper cutting assembly; 7. Paper pressing assembly; 8. Side plate; 9. Gear; 10. Support wheel; 11. First double-acting cylinder; 12. First swing arm; 13. Upper pressure roller; 14. Cutting beam; 15. Cutting blade; 16. First hinge shaft; 17. Second double-acting cylinder; 18. Second swing arm; 19. Paper pressing seat; 20. Paper pressing strip; 21. Second hinge shaft; 22. Third hinge shaft; 23. First cylinder; 24. Lower pressure roller; 25. Knife holder connecting plate; 26. Knife holder; 27. Cutting groove; 28. First cylinder connecting shaft; 29. ​​Fourth hinge shaft; 30. Second cylinder connecting shaft; 31. Second cylinder; 32. Third cylinder; 33. Paper clamping seat; 34. Fifth hinge shaft; 35. Paperboard holder; 36. Detailed Implementation

[0029] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Combination Figures 1 to 6The paper splicing machine shown includes a frame 1, a paper pressing and cutting module 3, a lower pressure roller assembly 4, and a knife holder assembly 5. Racks 2 are arranged on both sides of the frame 1. The paper pressing and cutting module 3 is equipped with paper pressing and cutting assemblies 6 and 7, which move synchronously on the racks 2. The paper pressing and cutting assembly 6 includes a synchronously swinging upper pressure roller 13 and a cutter 15. The paper pressing assembly 7 is configured to swing up and down and is used to abut against the old paper on the knife holder 27. The lower pressure roller assembly 4 is symmetrically arranged at both ends of the frame 1. Below the paper pressing and cutting module 3, the lower pressure roller assembly 4 includes a swingable lower pressure roller 25. The upper pressure roller 13 can move above the lower pressure roller 25 and abuts against the upper pressure roller 25 by swinging, so that the contact surface between the upper pressure roller 13 and the lower pressure roller 25 is located on the side of the lower pressure roller 25 away from the longitudinal central axis of the lower pressure roller 25. The blade holder assembly 5 is located on one side of the lower pressure roller assembly 4. The blade holder assembly 5 is swingably arranged at both ends of the frame 1. The blade holder assembly 5 includes a swingable blade holder 27, which moves closer to or away from the lower pressure roller 25. The upper end of the blade holder 27... A cutter groove 28 is provided on the side of the surface near the lower pressure roller 25; in this embodiment, the paper pressing and cutting module 3 can drive the paper pressing and cutting assembly 6 and the paper pressing assembly 7 to move along the length direction of the rack 2 on the frame 1, so as to switch to the lower pressure roller assembly 4 and the knife holder assembly 5 at one end of the frame 1, thereby allowing the work position to be switched left and right on the frame 1, improving work efficiency. Moreover, during the synchronous downward swinging process of the upper pressure roller 13 and the cutter 15, the upper pressure roller 13 first abuts against the lower pressure roller 25, pressing the old paper and the new paper tightly together. During the continuous downward swinging process, The lower pressure roller 25 swings down synchronously, causing the contact surface to be continuously pulled down and tightened. At the same time, the paper pressing assembly 7 abuts against the old paper on the knife holder 27, thereby tightening the old paper onto the knife holder 27. At this time, during the continuous downward swing of the upper pressure roller 13 and the lower pressure roller 25, the cutter 15 reaches the cutter groove 28 and cuts the old paper. The paper cutting and splicing process can be completed during the continuous downward pressing process. Moreover, the action of tightening the old paper is integrated into the paper cutting action, which improves the overall paper splicing efficiency. At the same time, the paper cut is flatter, eliminating the "tail" after paper splicing due to uneven paper cut.

[0031] It is also worth noting that, since the contact surfaces of the upper pressure roller 13 and the lower pressure roller 25 are located on the side of the lower pressure roller 25 away from the longitudinal central axis of the cutter 15, during the synchronous downward swing of the upper pressure roller 13 and the lower pressure roller 25, the old paper conveying direction of the contact surface is further shifted downward and forward, preventing the old paper from being torn due to the small downward tension angle at the edge of the cutter holder 27 during the tightening process.

[0032] In this embodiment, the paper pressing and cutting assembly 6 and the paper pressing assembly 7 are hinged between the side plates 8 at both ends. Two sets of clamps are installed on the side plates 8. Each set of clamps includes a gear 9 and a support wheel 10. The lower end face of the rack 2 is provided with teeth, and the support wheel 10 is mounted on the upper end of the rack 2. The gear 9 meshes with the teeth, so that the entire paper pressing and cutting module 3 can reciprocate by rotating the gear 9, so as to switch between different paper receiving positions. In practical applications, a servo motor for driving the rotation of the gear 9 is installed on the side plate 8.

[0033] The paper pressing and cutting assembly 6 in this embodiment includes a first double-acting cylinder 11 located on both sides of the frame 1. The output shafts at both ends of the first double-acting cylinder 11 are symmetrically connected to one end of the first swing arm 12. The other ends of the two first swing arms 12 are hinged to each other through the first hinge shaft 16. The upper pressure roller 13 is mounted on the first swing arm 12. A cutter beam 14 mounted on the first swing arm 12 is provided on one side of the upper pressure roller 13. The cutter 15 is mounted on the cutter beam 14. The first hinge shaft 16 is hinged to the side plate 8. The first double-acting cylinder 11 can drive the first swing arms 12 at both ends to swing, so that the corresponding upper pressure roller 13 and cutter 15 can swing synchronously through the corresponding first swing arm 12.

[0034] The paper pressing assembly 7 in this embodiment includes a second double-acting cylinder 17 located on both sides of the frame 1. The output shafts at both ends of the second double-acting cylinder 17 are symmetrically provided with second swing arms 18. The lower end of the second swing arm 18 is hinged to the side plate 8 through the second hinge shaft 21. A paper pressing seat 19 is installed on the second swing arm 18. A paper pressing strip 20 is provided at the lower end of the paper pressing seat 19. The two pressing strips 20 are respectively distributed on both sides of the paper pressing and cutting assembly 6. The second double-acting cylinder 17 drives the corresponding paper pressing strip 20 to swing, so that the paper pressing strip 20 presses the old paper on the knife holder 27 tightly, so that the other end of the old paper is tensioned during the pull-down process.

[0035] It is worth noting that the paper pressing strip 20 in this embodiment is made of silicone.

[0036] The lower pressure roller assembly 4 in this embodiment also includes third swing arms 22 located on both sides of the frame 1. The upper pressure roller 13 is installed between the two third swing arms 22. The third swing arms 22 are hinged to the frame 1 through a third hinge shaft 23. A first cylinder connecting shaft 29 is provided at the lower end of the third swing arm 22. The first cylinder connecting shaft 29 is connected to the output shaft of the first cylinder 24. The first cylinder 24 is hinged to the frame 1. The third swing arm 22 is driven to swing by the first cylinder 24, which can drive the upper pressure roller 13 to adjust its position so that after the upper pressure roller 13 abuts against the lower pressure roller 25, it can swing further downward with the upper pressure roller 13 and tighten the old paper.

[0037] The blade holder assembly 5 in this embodiment also includes blade holder connecting plates 26 located on both sides of the frame 1. The lower ends of the blade holder connecting plates 26 on both sides are hinged to the frame 1 via a fourth hinge shaft 30. The blade holder 27 is installed between the blade holder connecting plates 26 on both sides. A second cylinder connecting shaft 31 is installed on the blade holder connecting plate 26. The second cylinder connecting shaft 31 is connected to the output shaft of the second cylinder 32. The second cylinder 32 is hinged to the frame 1. The blade holder connecting plate 26 is swung by the second cylinder 32, which facilitates moving the blade holder 27 away from or closer to the pressure roller 25, so as to provide sufficient space for the operator to put in new paper.

[0038] In this embodiment, a paper-fixing assembly is also provided between the two blade holder connecting plates 26. The paper-fixing assembly swings towards the lower pressure roller 25, so that the paper-fixing assembly and the lower pressure roller 25 clamp the new paper. The paper-fixing assembly can stabilize the new paper on the surface of the lower pressure roller 25, preventing the new paper from falling off the surface of the lower pressure roller 25, so as to facilitate paper splicing.

[0039] The paper-fixing assembly in this embodiment includes a paper clamping seat 34. The upper end of the paper clamping seat 34 is hinged to the upper inner side of the knife holder connecting plate 26 via a fifth hinge shaft 35. The lower end of the paper clamping seat 34 is hinged to the output shaft of a third cylinder 33, which is hinged to the knife holder connecting plate 26. A paper-fixing plate 36 is provided on the side of the paper clamping seat 34 facing the lower pressure roller 25. The third cylinder 33 drives the paper clamping seat 34 to swing, thereby facilitating the insertion and clamping of new paper into the paper-fixing plate 36 and preventing paper splicing failure.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A tailless sheeting machine characterized by, The utility model relates to a paper pressing and cutting device, which comprises a frame (1) provided with a rack (2) on both sides thereof; a paper pressing and cutting module (3) provided with a paper pressing and cutting assembly (6) and a paper pressing assembly (7) and synchronously moving on the rack (2), the paper pressing and cutting assembly (6) comprising a synchronously swingable upper pressing wheel (13) and a cutting knife (15), the paper pressing assembly (7) being provided with an upper and lower swing structure and used for abutting against old paper on a knife holder (27); a lower pressing wheel assembly (4) symmetrically arranged at both ends of the frame (1) and located below the paper pressing and cutting module (3), the lower pressing wheel assembly (4) comprising a swingable lower pressing wheel (25), the upper pressing wheel (13) being movable to above the lower pressing wheel (25) and abutting against the upper pressing wheel (13) by swinging, so that the contact surfaces of the upper pressing wheel (13) and the lower pressing wheel (25) abutting against each other are located on the side of the longitudinal central axis of the lower pressing wheel (25) away from the cutting knife (15); and a knife holder assembly (5) located on one side of the lower pressing wheel assembly (4) and swingably arranged at both ends of the frame (1), the knife holder assembly (5) comprising a swingable knife holder (27) and being used for moving the knife holder (27) close to or away from the lower pressing wheel (25), the upper end surface of the knife holder (27) being provided with a cutting knife groove (28) on the side close to the lower pressing wheel (25). The paper pressing and cutting assembly (6) and the paper pressing assembly (7) are hinged between side plates (8) at both ends, the side plates (8) are provided with two sets of clamps, each set of the clamps comprises a gear (9) and a supporting wheel (10), the lower end surface of the rack (2) is provided with teeth, the supporting wheel (10) is arranged on the upper end of the rack (2), and the gear (9) is engaged with the teeth. The paper pressing and cutting assembly (6) comprises first double-acting cylinders (11) arranged at both sides of the frame (1), output shafts at both ends of the first double-acting cylinders (11) are symmetrically connected to one end of first swing arms (12), the other ends of the two first swing arms (12) are hingedly connected to each other through a first hinge shaft (16), the upper pressing wheel (13) is arranged on the first swing arms (12), one side of the upper pressing wheel (13) is provided with a cutting knife beam (14) arranged on the first swing arms (12), the cutting knife (15) is arranged on the cutting knife beam (14), and the first hinge shaft (16) is hinged to the side plates (8). The paper pressing assembly (7) comprises second double-acting cylinders (17) arranged at both sides of the frame (1), output shafts at both ends of the second double-acting cylinders (17) are symmetrically provided with second swing arms (18), the lower ends of the second swing arms (18) are hingedly connected to the side plates (8) through a second hinge shaft (21), the second swing arms (18) are provided with paper pressing seats (19), the paper pressing seats (19) are provided with paper pressing strips (20) at the lower ends, and the paper pressing strips (20) are arranged on both sides of the paper pressing and cutting assembly (6). The paper pressing strips (20) are made of silica gel.

2. A tailless interfacing paper machine according to claim 1, characterized in that ​ 3. A tailless interfacing machine according to claim 2, characterized in that ​ 4. A tailless interfacing machine according to claim 3, characterized in that ​ 5. A tailless interfacing machine according to claim 4, characterized in that ​ 6. A tailless interfacing paper machine according to claim 2, characterized in that The lower pressing wheel assembly (4) further comprises third swing arms (22) on both sides of the frame (1), the upper pressing wheel (13) is installed between the third swing arms (22) on both sides, the third swing arms (22) are hinged to the frame (1) through third hinge shafts (23), the lower ends of the third swing arms (22) are provided with first cylinder connecting shafts (29), the first cylinder connecting shafts (29) are connected with the output shafts of first cylinders (24), and the first cylinders (24) are hinged to the frame (1).

7. A tailless interfacing paper machine according to claim 2, characterized in that The knife seat assembly (5) further comprises knife seat connecting plates (26) on both sides of the frame (1), the lower ends of the knife seat connecting plates (26) on both sides are hinged to the frame (1) through fourth hinge shafts (30), the knife seats (27) are installed between the knife seat connecting plates (26) on both sides, second cylinder connecting shafts (31) are installed on the knife seat connecting plates (26), the second cylinder connecting shafts (31) are connected with the output shafts of second cylinders (32), and the second cylinders (32) are hinged to the frame (1).

8. A tailless interfacing machine according to claim 7, characterized in that A paper positioning assembly is further arranged between the knife seat connecting plates (26) on both sides, the paper positioning assembly swings towards the direction of the lower pressing wheel (25), and the paper positioning assembly and the lower pressing wheel (25) are clamped between the paper positioning assembly and the lower pressing wheel (25).

9. A tailless interfacing machine according to claim 8, characterized in that The paper positioning assembly comprises a paper clamping seat (34), the upper end of the paper clamping seat (34) is hinged to the inner upper end of the knife seat connecting plate (26) through a fifth hinge shaft (35), the lower end of the paper clamping seat (34) is hinged to the output shaft of a third cylinder (33), the third cylinder (33) is hinged to the knife seat connecting plate (26), and a paper positioning plate (36) is arranged on the side of the paper clamping seat (34) facing the lower pressing wheel (25).

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