Carton forming machine with digital printing

Abstract

This utility model discloses a carton forming machine with digital printing, comprising: a frame, on which a printing station and a longitudinal pressing station are arranged; a digital printing device, disposed at the printing station, used to print on the upper surface of the cardboard conveyed to the printing station; and a longitudinal pressing device, disposed at the longitudinal pressing station, comprising an upper pressing component and a lower pressing component, the lower pressing component comprising a lower pressing roller, the outer periphery of which is provided with a lower pressing protrusion. The upper and lower pressing components are used to clamp the cardboard conveyed through the longitudinal pressing station, and the lower pressing protrusion on the lower pressing roller acts on the lower surface of the cardboard to form an upwardly recessed longitudinal indentation. Using the above solution, a carton forming machine with digital printing is provided that can perform printing and creasing on the cardboard during the cardboard conveying process, allowing the processed cardboard to be directly folded to form a printed carton.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard box production, specifically relating to a cardboard box forming machine with digital printing. Background Technology

[0002] Cardboard box production equipment uses processes such as creasing and slotting to fold the processed cardboard into cardboard boxes.

[0003] The cardboard consists of two sides: a face paper and a liner paper. After the cardboard is folded to form a carton, the face paper faces outward and the liner paper faces inward.

[0004] Existing cardboard box production equipment typically transports the cardboard with the linerboard facing up and the faceboard facing down. During transport, the equipment uses downward creases to create indentations on the linerboard, allowing for smoother folding when forming the box. Additionally, before or after processing, the faceboard can be printed according to customer requirements, ensuring the printed graphics face outwards after folding. Current printing methods include manual and automated printing. Automated printing usually involves placing the cardboard faceboard up into the automated printing equipment, which then prints the graphics on the faceboard.

[0005] The shortcomings of existing cardboard box production equipment are that it does not have the function of printing on the face paper of the cardboard, which means that printing and creasing processing require different equipment. Therefore, the production efficiency is low for cardboard boxes that need to be printed. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a carton forming machine with digital printing that can print and crease on the cardboard during the cardboard transport process, so that the processed cardboard can be directly folded to form a printed carton.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A carton forming machine with digital printing capability includes: a frame with a printing station and a longitudinal pressing station; a digital printing device located at the printing station, used to print on the upper surface of cardboard conveyed to the printing station; and a longitudinal pressing device located at the longitudinal pressing station, comprising an upper pressing component and a lower pressing component, the lower pressing component including a lower pressing roller with a lower pressing protrusion on its outer periphery, the upper pressing component and the lower pressing component being used to clamp the cardboard conveyed through the longitudinal pressing station, and forming an upwardly recessed longitudinal indentation by the lower pressing protrusion on the lower surface of the cardboard through the action of the lower pressing protrusion on the lower pressing roller.

[0008] The present invention is further configured such that: the upper indentation component includes an upper indentation roller, and the outer periphery of the upper indentation roller is provided with an upper indentation groove that cooperates with the lower indentation protrusion.

[0009] The present invention is further configured such that: a lower indentation groove is provided on the outer periphery of the lower indentation roller, and an upper indentation protrusion is provided on the outer periphery of the upper indentation roller to cooperate with the lower indentation groove; the upper and lower indentation components are used to clamp the cardboard that has passed through the longitudinal pressing station, and the upper indentation protrusion on the upper indentation roller acts on the upper surface of the cardboard to form a downwardly recessed longitudinal indentation; and / or, it further includes a first sliding frame, a first sliding drive device, a second sliding frame and a second sliding drive device, the first and second sliding frames being slidably disposed on the frame, the first sliding drive device being used to drive the first sliding frame to slide, the second sliding drive device being used to drive the second sliding frame to slide, the lower indentation roller being disposed on the first sliding frame, and the upper indentation roller being disposed on the second sliding frame; and / or, it further includes a first motion device, the first motion device connecting the frame and the upper indentation roller, the first motion device working to make the upper indentation roller move closer to or away from the lower indentation roller.

[0010] The present invention is further configured such that: the first motion device includes a first flipping frame and a first flipping drive device, the first flipping frame is flipped relative to the frame, the first flipping drive device is used to drive the first flipping frame to flip, and the upper indentation roller is disposed on the first flipping frame.

[0011] The present invention is further configured such that the upper indentation component includes an upper indentation rubber roller.

[0012] The present invention is further configured to include: a third sliding frame and a third sliding drive device, wherein the third sliding frame is slidably disposed on the frame, the third sliding drive device is used to drive the third sliding frame to slide, and the lower indentation roller is disposed on the third sliding frame; and / or, it further includes a second motion device, wherein the second motion device connects the frame and the upper indentation roller, and the second motion device operates to make the upper indentation roller move closer to or away from the lower indentation roller.

[0013] The present invention is further configured as follows: a transverse pressing station is provided on the frame; it also includes a transverse pressing device, which is provided at the transverse pressing station. The transverse pressing device includes a transverse crease knife and a lower pressing table. The lower pressing table is located above the transverse crease knife, and the transverse crease knife can be raised and lowered relative to the lower pressing table. The transverse crease knife and the lower pressing table are close to each other to form an upwardly recessed transverse crease on the lower surface of the cardboard that is being transported through the transverse pressing station.

[0014] The present invention is further configured to include a grooving device, which is disposed at the transverse pressing station. The grooving device includes a grooving knife and a second support platform. The grooving knife is located above the second support platform and can be raised and lowered relative to the second support platform. The grooving knife and the second support platform are close to each other to open transverse grooves on the cardboard that is being conveyed through the transverse pressing station.

[0015] The present invention is further configured as follows: it also includes a first lifting drive device, the first lifting drive device including a connector and a lifting power device, the lifting power device being used to drive the connector to move up and down, the transverse indentation knife and the grooving knife being both disposed on the connector to move up and down synchronously with the connector, the grooving knife being located above the transverse indentation knife; and / or, it also includes a second lifting drive device, the second lifting drive device being used to drive the lower pressing table to move up and down, the lower surface of the lower pressing table being provided with a first clearance opening for the transverse indentation knife and the grooving knife to pass through; and / or, the second support table and the frame are fixedly disposed, the upper surface of the second support table being provided with a second clearance opening for the transverse indentation knife and the grooving knife to pass through.

[0016] The present invention is further configured such that: the first lifting drive device includes a movable beam and a fourth sliding drive device, the movable beam is fixedly mounted on the connecting member, the grooving cutter is slidably mounted on the movable beam, and the fourth sliding drive device is used to drive the grooving cutter to slide; and / or, the lifting power device includes an eccentric wheel and a mounting part, the eccentric wheel is rotatably mounted on the frame, and the mounting part is rotatably mounted on the eccentric wheel and the connecting member respectively, so that the eccentric wheel rotates and sequentially links the mounting part and the connecting member to realize the lifting of the connecting member.

[0017] The present invention is further configured as follows: a longitudinal cutting station is provided on the frame; it also includes a longitudinal cutting device, which is provided at the longitudinal cutting station. The longitudinal cutting device includes a fifth sliding frame, a fifth sliding drive device, and a longitudinal cutting tool. The fifth sliding frame is slidably provided on the frame. The fifth sliding drive device is used to drive the fifth sliding frame to slide. The longitudinal cutting tool is provided on the fifth sliding frame, and the bottom of the longitudinal cutting tool is provided with a V-shaped longitudinal cutting edge.

[0018] The present invention is further configured such that: the longitudinal cutting device includes a lifting power component, which is used to connect the fifth sliding frame and the longitudinal cutting tool to drive the longitudinal cutting tool to rise and fall.

[0019] The present invention is further configured as follows: it also includes a transverse pressing device, a grooving device, and a longitudinal cutting device. The transverse pressing station and the longitudinal cutting station are arranged sequentially on one side of the printing station and the longitudinal pressing station on the machine frame. The transverse pressing device and the grooving device are located at the transverse pressing station, and the longitudinal cutting device is located at the longitudinal cutting station. Alternatively, it also includes a transverse pressing device, a grooving device, and a longitudinal cutting device. The transverse pressing station, the transverse cutting station, and the longitudinal cutting station are arranged sequentially on one side of the printing station and the longitudinal pressing station on the machine frame. The transverse pressing device is located at the transverse pressing station, the grooving device is located at the transverse cutting station, and the longitudinal cutting device is located at the longitudinal cutting station.

[0020] By adopting the above technical solution, 1. The cardboard to be processed is stacked at the stacking station, with the upper surface of the cardboard being the face paper and the lower surface being the liner paper. Under the action of the paper feeding device, the bottom cardboard is conveyed from right to left, stopping at the printing station. The digital printing device then operates to digitally print images on the face paper of the cardboard. After printing, the paper feeding device continues to convey the cardboard, causing it to pass through the longitudinal pressing station. Under the action of the longitudinal pressing device, longitudinal indentations are formed on the cardboard. The cardboard continues to be conveyed to the transverse pressing station, where it stops. Under the operation of the slotting device, transverse creases and slots are formed on the cardboard. After the transverse creases and slots are formed, the paper feeding device continues to transport the cardboard through the longitudinal cutting station, where the cardboard is longitudinally cut by the longitudinal cutting device. 2. When the cardboard is transported to the longitudinal pressing station, the lower crease roller is located below the cardboard and can act on the inner paper of the cardboard. This not only ensures that the face paper of the cardboard is facing up for printing, but also forms longitudinal creases on the inner paper of the cardboard. That is, creases and printing can be performed without flipping the cardboard, which greatly improves the production efficiency of the carton. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an assembly drawing of Embodiment 1 of the present utility model; Figure 2 This is a front view of Embodiment 1 of the present utility model; Figure 3 for Figure 1 Enlarged view of A in the middle; Figure 4 for Figure 2 Enlarged view of B in the middle; Figure 5 This is an assembly drawing of the longitudinal pressing station in Embodiment 1 of this utility model; Figure 6 for Figure 5 Enlarged view of C in the middle; Figure 7 This is an assembly drawing of the transverse pressing station in Embodiment 1 of this utility model; Figure 8 This is an assembly drawing of a portion of the structure in the transverse pressing station of this utility model, according to Embodiment 1. Figure 9 for Figure 8 Enlarged view of D; Figure 10 This is an assembly drawing of a portion of the structure in the transverse pressing station of this utility model, according to Embodiment 1. Figure 11 This is an assembly drawing of a portion of the structure in the transverse pressing station of this utility model, according to Embodiment 1. Figure 12 This is an assembly drawing of a portion of the structure in the transverse pressing station of this utility model, according to Embodiment 1. Figure 13 for Figure 1 Enlarged view of part of the image; Figure 14 for Figure 2 A magnified view of E in the middle.

[0023] Explanation of reference numerals in the attached figures: 1. Rack; 11. Stacking station; 12. Printing station; 13. Longitudinal pressing station; 14. Transverse pressing station; 15. Slitting station; 2. Paper feeding device; 3. Digital printing equipment; 31. First support platform; 32. Printing press; 33. Printing slide frame; 34. Printing slide drive device; 4. Longitudinal compression device; 41. Upper indentation component; 42. Lower indentation component; 43. First sliding frame; 44. First sliding drive device; 45. Second sliding frame; 46. Second sliding drive device; 47. First tilting frame; 48. First tilting drive device; 49. Longitudinal pressing power device; 411. Upper indentation roller; 4111. Upper indentation groove; 4112. Upper indentation raised edge; 421. Lower indentation roller; 4211. Lower indentation raised edge; 4212. Lower indentation groove; 491. Longitudinal compression motor; 492. Guide slide bar; 5. Horizontal pressing device; 51. Horizontal indentation tool; 52. Lower pressure table; 53. First lifting drive device; 54. Second lifting drive device; 55. Third lifting drive device; 531. Connecting component; 532. Lifting power unit; 533. Movable beam; 534. Fourth sliding drive device; 5321. First lifting power motor; 5322. First gearbox; 5323. Eccentric wheel; 5324. Mounting part; 541. Second lifting power motor; 542. Second gearbox; 543. Second lead screw module; 544. Second lifting frame; 521. First clearance opening; 551. Third lifting power motor; 552. Third gearbox; 553. Third lead screw module; 554. Third lifting frame; 6. Slotting device; 61. Grooving cutter; 62. Second support platform; 621. Second clearance opening; 7. Longitudinal cutting device; 71. Fifth sliding frame; 72. Fifth sliding drive device; 73. Longitudinal cutting tool; 74. Lifting power component; 731. Longitudinal cutting edge. Detailed Implementation

[0024] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0025] Example 1: like Figures 1-14 As shown, this utility model discloses a carton forming machine with digital printing, comprising: The frame 1 is provided with a stacking station 11, a printing station 12, a longitudinal pressing station 13, a transverse pressing station 14 and a longitudinal cutting station 15 arranged sequentially from right to left. Paper feeding device 2 is provided between stacking station 11 and adjacent stations. Paper feeding device 2 is used to transport the cardboard stacked in stacking station 11 from right to left through each station. Digital printing device 3 is installed at printing station 12 and is used to print on the upper surface of the cardboard that is conveyed to printing station 12. Longitudinal pressing device 4 is installed at longitudinal pressing station 13 and is used to process longitudinal indentation on the paperboard that is conveyed through longitudinal pressing station 13. A transverse pressing device 5 is provided at a transverse pressing station 14. The transverse pressing device 5 is used to process transverse indentations on the cardboard that is conveyed to the transverse pressing station 14. The slotting device 6 is located at the transverse pressing station 14 and is used to slot the cardboard that is conveyed to the transverse pressing station 14. The longitudinal cutting device 7 is located at the longitudinal cutting station 15 and is used to longitudinally cut the cardboard that is conveyed to the longitudinal cutting station 15.

[0026] Therefore, the cardboard to be processed is stacked at stacking station 11, with the upper surface of the cardboard being the face paper and the lower surface being the liner paper. Under the action of the paper feeding device 2, the bottom cardboard is transported from right to left and stops at printing station 12. Then, the digital printing device 3 works to digitally print images on the face paper of the cardboard. After printing, the paper feeding device 2 continues to transport the cardboard through longitudinal pressing station 13. Under the action of longitudinal pressing device 4, longitudinal creases are formed on the cardboard. The cardboard continues to be transported to transverse pressing station 14 and stops. Under the action of transverse pressing device 5 and slotting device 6, transverse creases and transverse slots are formed on the cardboard. After the transverse creases and transverse slots are formed, the paper feeding device 2 continues to transport the cardboard through longitudinal cutting station 15. Under the action of longitudinal cutting device 7, the cardboard is longitudinally cut.

[0027] In other embodiments, the printing station 12 and the longitudinal pressing station 13 can be interchanged. It should be noted that printing can be performed before the paperboard has undergone longitudinal pressing, so that the paperboard is flatter and the printing accuracy is higher.

[0028] The transverse pressing station 14 is set after the longitudinal pressing station 13, and the transverse pressing device 5 first makes transverse indentations at the transverse pressing station, and then makes transverse grooving through the grooving device 6.

[0029] Therefore, if longitudinal and transverse creasing are performed first, the cardboard can be creasing at the slotting position to reduce its thickness, thus making it less likely to burst at the slot opening when transverse slotting is performed later, ensuring the quality of carton production. Conversely, if transverse slotting is performed first and then longitudinal and transverse creasing are performed, bursting is more likely to occur at the slot opening of the transverse slot.

[0030] Specifically, the digital printing device 3 includes a first support platform 31, a printer 32, a printing slide frame 33, and a printing slide drive device 34. The first support platform 31 is fixedly mounted on the frame 1. The printing slide frame 33 is slidably mounted on the frame 1 in the front-back direction. The printing slide drive device 34 is used to drive the printing slide frame 33 to slide back and forth. The printer 32 is mounted on the printing slide frame 33, and the lower end of the printer 32 faces the first support platform 31.

[0031] Therefore, the cardboard transferred from the stacking station 11 to the printing station 12 is laid flat on the first support platform 31, and the printer 32 slides back and forth with the printing slide frame 33 under the operation of the printing slide drive device 34, and prints on the face paper of the cardboard by the printer 32 facing downward during the back and forth sliding process.

[0032] Specifically, printer 32 uses a digital printer.

[0033] The longitudinal pressing device 4 includes an upper indenter 41 and a lower indenter 42. The lower indenter 42 includes a lower indenter roller 421. The lower indenter roller 421 has a lower indenter protrusion 4211 on its outer periphery. The upper indenter 41 and the lower indenter 42 are used to clamp the cardboard that has passed through the longitudinal pressing station 13. The lower indenter protrusion 4211 on the lower indenter roller 421 acts on the inner paper of the cardboard to form an upwardly recessed longitudinal indentation.

[0034] Therefore, when the paperboard is conveyed to the longitudinal pressing station 13, the lower indentation roller 421 is located below the paperboard and can act on the inner paper of the paperboard. This not only ensures that the face paper of the paperboard faces upward for printing, but also forms longitudinal indentations on the inner paper of the paperboard.

[0035] Specifically, the upper embossing component 41 includes an upper embossing roller 411. The outer periphery of the upper embossing roller 411 is provided with an upper embossing groove 4111 that cooperates with the lower embossing protrusion 4211, so that the upper embossing roller 411 and the lower embossing roller 421 clamp the cardboard from above and below, and form a more obvious longitudinal embossing under the cooperation of the lower embossing protrusion 4211 and the upper embossing groove 4111.

[0036] In addition, the lower indentation roller 421 is provided with a lower indentation groove 4212 on its outer periphery, and the upper indentation roller 411 is provided with an upper indentation protrusion 4112 that cooperates with the lower indentation groove 4212 on its outer periphery. The upper indentation member 41 and the lower indentation member 42 are used to clamp the cardboard that has been conveyed through the longitudinal pressing station 13, and the upper indentation protrusion 4112 on the upper indentation roller 411 acts on the face paper of the cardboard to form a downwardly recessed longitudinal indentation, so that the cardboard formed can be smoothly flipped to both sides.

[0037] This embodiment also includes a first sliding frame 43, a first sliding drive device 44, a second sliding frame 45, and a second sliding drive device 46. The first sliding frame 43 and the second sliding frame 45 are slidably mounted on the frame 1 in the front-back direction using a slide rail and a slider. The first sliding drive device 44 is used to drive the first sliding frame 43 to slide, and the second sliding drive device 46 is used to drive the second sliding frame 45 to slide. The lower creasing roller 421 is mounted on the first sliding frame 43, and the upper creasing roller 411 is mounted on the second sliding frame 45. This allows the positions of the upper creasing roller 411 and the lower creasing roller 421 to be changed by adjusting the positions of the first sliding frame 43 and the second sliding frame 45, so as to perform longitudinal creasing processing on different positions of the cardboard.

[0038] This embodiment also includes a first motion device, which comprises a first flipping frame 47 and a first flipping drive device 48. The first flipping frame 47 is rotatably mounted on a second sliding frame 45 via a pin. The first flipping drive device 48 is a cylinder, with the cylinder body of the first flipping drive device 48 hinged to the second sliding frame 45. The output shaft of the first flipping drive device 48 is hinged to the first flipping frame 47. An upper creasing roller 411 is disposed on the first flipping frame 47. The extension and retraction of the output shaft of the first flipping drive device 48 can drive the first flipping frame 47 to flip, so that the upper creasing roller 411 flips downward to cooperate with the lower creasing roller 421 to creasing the paperboard. Alternatively, the upper creasing roller 411 can flip upward to disengage from the lower creasing roller 421 and not creasing the paperboard.

[0039] In addition, the longitudinal pressing device 4 also includes a longitudinal pressing power device 49, which includes a longitudinal pressing power motor 491 and a guide slide rod 492. The two ends of the guide slide rod 492 are rotatably mounted on the frame 1 by bearings or other means. The longitudinal pressing power motor 491 is connected to one axial end of the guide slide rod 492 through a coupling, so that the longitudinal pressing power motor 491 can drive the guide slide rod 492 to rotate circumferentially. The outer periphery of the guide slide rod 492 is hexagonal prism-shaped. Correspondingly, the lower indentation roller 421 is provided with a hexagonal prism guide hole, so that the guide hole and the guide slide rod 492 cooperate to realize the synchronous circumferential rotation of the lower indentation roller 421 and the guide slide rod 492. The lower indentation roller 421 can slide and adjust relative to the guide slide rod 492 in the front and back directions.

[0040] The transverse pressing device 5 includes a transverse crease knife 51 and a lower pressing table 52. The lower pressing table 52 is located above the transverse crease knife 51, and the transverse crease knife 51 can be raised and lowered relative to the lower pressing table 52. The transverse crease knife 51 and the lower pressing table 52 are close to each other to form an upwardly recessed transverse crease on the lower surface of the cardboard that has been conveyed through the transverse pressing station 14.

[0041] Therefore, when the cardboard is transferred to the transverse pressing station 14, the transverse crease knife 51 is located below the cardboard and the lower pressure table 52 is located above the cardboard, so that the lower pressure table 52 supports the cardboard from top to bottom and the transverse crease knife 51 acts on the inner paper of the cardboard from bottom to top. This not only ensures that the face paper of the cardboard is facing up for printing, but also allows transverse creases to be formed on the inner paper of the cardboard.

[0042] Additionally, a grooving device 6 is included. The grooving device 6 is disposed at the transverse pressing station 14. The grooving device 6 includes a grooving knife 61 and a second support platform 62. The grooving knife 61 is located above the second support platform 62. The grooving knife 61 can be raised and lowered relative to the second support platform 62. The grooving knife 61 and the second support platform 62 are close to each other to open transverse grooves on the cardboard that is being conveyed through the transverse pressing station 14.

[0043] Therefore, when the cardboard is conveyed to the transverse pressing station 14, the grooving knife 61 is located above the cardboard and the second support table 62 is located below the cardboard, so that the second support table 62 supports the cardboard from bottom to top and the grooving knife 61 acts on the cardboard from top to bottom, thus forming transverse grooves on the cardboard.

[0044] This also includes a first lifting drive device 53, which includes a connector 531 and a lifting power device 532. The connector 531 is a sliding guide rod, and a guide bushing is provided on the frame 1 so that the sliding guide rod cooperates with the guide bushing to achieve lifting movement. The lifting power device 532 includes a first lifting power motor 5321, a first reduction gearbox 5322, an eccentric wheel 5323, and a mounting part 5324. The first lifting power motor 5321 and the eccentric wheel 5323 are respectively connected to the first... A reduction gearbox 5322 is provided so that the operation of the first lifting power motor 5321 can drive the rotation of the eccentric wheel 5323. The mounting part 5324 is arranged in a ring and is mounted on the outer periphery of the eccentric wheel 5323 by means of bearings. In addition, the top of the mounting part 5324 is hinged to the bottom of the connecting member 531 by means of a pin. The transverse indentation knife 51 and the grooving knife 61 are both provided on the connecting member 531 so as to rise and fall synchronously with the connecting member 531. The grooving knife 61 is located above the transverse indentation knife 51. Therefore, the operation of the first lifting motor 5321 sequentially links the movement of the first reduction gearbox 5322, the eccentric wheel 5323, the mounting part 5324, and the connecting piece 531 to achieve the reciprocating lifting of the connecting piece 531. This enables the transverse indentation tool 51 and the grooving tool 61 to move synchronously upwards, performing transverse indentation processing through the cooperation of the transverse indentation tool 51 and the lower pressure table 52. It also enables the transverse indentation tool 51 and the grooving tool 61 to move synchronously downwards, performing transverse grooving through the cooperation of the grooving tool 61 and the second support table 62. Furthermore, due to the synchronous movement of the transverse indentation tool 51 and the grooving tool 61, there will be no collision between the transverse indentation tool 51 and the grooving tool 61 at any processing speed, thus ensuring the safety of the equipment.

[0045] In addition, the first lifting drive device 53 in this embodiment also includes a movable beam 533 and a fourth sliding drive device 534. The movable beam 533 is fixedly mounted on the connector 531 by bolts or other means. The grooving knife 61 is slidably mounted on the movable beam 533 in the front-back direction by means of a slide rail and a slider. The fourth sliding drive device 534 is used to drive the grooving knife 61 to slide back and forth, so that the operation of the fourth sliding drive device 534 can drive the grooving knife 61 to slide back and forth and adjust the transverse grooving at different positions of the cardboard.

[0046] Preferably, there are two sets of eccentric wheels 5323, mounting parts 5324 and connecting parts 531, which are arranged on the front and rear sides of the transverse indentation knife 51 and the movable beam 533. In addition, a connecting shaft is set between the two eccentric wheels 5323 so that the operation of the first lifting power motor 5321 can drive the eccentric wheels 5323 on both sides synchronously, thereby improving the stability of the lifting of the transverse indentation knife 51 and the movable beam 533.

[0047] The device also includes a second lifting drive device 54, which includes a second lifting power motor 541, a second reduction gearbox 542, a second lead screw module 543, and a second lifting frame 544. The second reduction gearbox 542 connects the output shaft of the second lifting power motor 541 to the nut in the second lead screw module 543. The lead screw in the second lead screw module 543 and the second lifting frame 544 are fixedly installed. The lower pressure platform 52 is fixedly set on the second lifting frame 544, so that the operation of the second lifting power motor 541 drives the second reduction gearbox 542 and the second lead screw module 543 to work in sequence, so as to realize the lifting of the lead screw in the second lead screw module 543, thereby driving the second lifting frame 544 and the lower pressure platform 52 to lift.

[0048] The lower pressure table 52 has a vertical through slot, and a first clearance opening 521 is provided on the lower surface of the lower pressure table 52 for the horizontal indentation knife 51 and the grooving knife 61 to pass through, so as to ensure that the horizontal indentation knife 51 and the grooving knife 61 will not interfere with the lower pressure table 52 during the lifting and lowering process.

[0049] The second support platform 62 and the frame 1 are fixedly installed by bolts. The second support platform 62 has a vertical through slot, so that a second clearance opening 621 is provided on the upper surface of the second support platform 62 for the horizontal indentation knife 51 and the grooving knife 61 to pass through, so as to ensure that the horizontal indentation knife 51 and the grooving knife 61 will not interfere with the second support platform 62 during the lifting and lowering process.

[0050] Preferably, it also includes a third lifting drive device 55, which includes a third lifting power motor 551, a third reduction gearbox 552, a third lead screw module 553, and a third lifting frame 554. The third reduction gearbox 552 connects the output shaft of the third lifting power motor 551 and the nut in the third lead screw module 553. The lead screw in the third lead screw module 553 and the third lifting frame 554 are fixedly installed. The first reduction gearbox 5322 is fixedly installed on the third lifting frame 554, so that the operation of the third lifting power motor 551 sequentially drives the third reduction gearbox 552 and the third lead screw module 553 to achieve the lifting and lowering of the lead screw in the third lead screw module 553, thereby driving the lifting and lowering of the third lifting frame 554, the first reduction gearbox 5322, etc., to adjust the indentation depth of the transverse indentation.

[0051] Preferably, both the second gearbox 542 and the third gearbox 552 are worm gear reducers to stably maintain the positions of the second lifting frame 544 and the third lifting frame 554 after the second lifting motor 541 and the third lifting motor 551 stop working.

[0052] The longitudinal cutting device 7 includes a fifth sliding frame 71, a fifth sliding drive device 72, and a longitudinal cutting tool 73. The fifth sliding frame 71 is slidably mounted on the frame 1 in the front-back direction using a sliding rail and a slider. The fifth sliding drive device 72 is used to drive the fifth sliding frame 71 to slide. The longitudinal cutting tool 73 is mounted on the fifth sliding frame 71, and the bottom of the longitudinal cutting tool 73 is provided with a V-shaped longitudinal cutting blade 731, so that when the paperboard is conveyed through the longitudinal cutting station 15, the paperboard can be longitudinally cut under the action of the longitudinal cutting blade 731. The longitudinal cutting tool 73 can slide back and forth with the fifth sliding frame 71 to adjust the longitudinal cutting of different positions of the paperboard.

[0053] In addition, the longitudinal cutting device 7 also includes a lifting power component 74, which is specifically a cylinder, so that the lifting power component 74 can connect the fifth sliding frame 71 and the longitudinal cutting tool 73 to drive the longitudinal cutting tool 73 to rise and fall, thereby controlling the longitudinal cutting length.

[0054] In this embodiment, the printing slide drive device 34, the first slide drive device 44, the second slide drive device 46, the fourth slide drive device 534, and the fifth slide drive device 72 all adopt the structure of servo motor, gear, and rack, so that the servo motor works and the gear and rack cooperate to realize the forward and backward sliding of the printing slide frame 33, the first slide frame 43, the second slide frame 45, the grooving knife 61, and the fifth slide frame 71.

[0055] Example 2: A carton forming machine with digital printing has the same main structure as Embodiment 1, except that the upper creasing component 41 includes an upper creasing roller. Therefore, when the cardboard passes between the lower creasing roller 421 and the upper creasing roller, obvious longitudinal creasing marks can be formed on the inner paper of the cardboard due to the squeezing action between the lower creasing convex blade 4211 and the upper creasing roller.

[0056] The system also includes a third sliding frame and a third sliding drive device. The third sliding frame is mounted on the frame 1 in a front-to-back direction using a slide rail and a slider. The third sliding drive device is used to drive the third sliding frame to slide. The lower creasing roller 421 is mounted on the third sliding frame. This allows the position of the lower creasing roller 421 to be changed by adjusting the position of the third sliding frame, so that longitudinal creasing can be performed on different positions of the cardboard. The upper creasing roller has a relatively long front-to-back length, so that after adjusting the lower creasing roller 421 by sliding the third sliding frame back and forth, the lower creasing roller 421 can always be matched with the upper creasing roller.

[0057] The system also includes a second motion device, comprising a second flipping frame and a second flipping drive device. The second flipping frame is rotatably mounted on the frame 1 using a pin shaft. The second flipping drive device is a cylinder, with its cylinder body hinged to the frame 1. The output shaft of the second flipping drive device is hinged to the second flipping frame. The axial ends of the upper creasing roller are rotatably mounted on the second flipping frame using bearings. The extension and retraction of the output shaft of the second flipping drive device can drive the second flipping frame to flip, allowing the upper creasing roller to flip downwards and engage with the lower creasing roller 421 to creasing the paperboard. Alternatively, the upper creasing roller can flip upwards to disengage from the lower creasing roller 421, thus preventing creasing of the paperboard.

[0058] In this embodiment, the third sliding drive device adopts a structure of servo motor, gear, and rack, so that the servo motor works and the gear and rack work together to realize the forward and backward sliding of the third sliding frame.

[0059] Example 3: A carton forming machine with digital printing has the same main structure as Embodiment 1. The difference is that the horizontal pressing device 5 is set only in the horizontal pressing station 14, and the horizontal cutting station is set on the frame 1 for the slotting device 6, so that the horizontal pressing device 5 and the slotting device 6 are relatively independent.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A carton forming machine with digital printing capability, characterized in that, include: The machine frame (1) is equipped with a printing station (12) and a longitudinal pressing station (13). Digital printing device (3), digital printing device (3) is set at printing station (12), digital printing device (3) is used to print on the upper surface of the cardboard that is transferred to printing station (12); The longitudinal pressing device (4) is located at the longitudinal pressing station (13). The longitudinal pressing device (4) includes an upper indenter (41) and a lower indenter (42). The lower indenter (42) includes a lower indenter roller (421). The lower indenter roller (421) has a lower indenter protrusion (4211) on its outer periphery. The upper indenter (41) and the lower indenter (42) are used to clamp the paperboard that has passed through the longitudinal pressing station (13). The lower indenter protrusion (4211) on the lower indenter roller (421) acts on the lower surface of the paperboard to form an upwardly recessed longitudinal indentation.

2. The carton forming machine with digital printing according to claim 1, characterized in that: The upper indentation part (41) includes an upper indentation roller (411), and the outer periphery of the upper indentation roller (411) is provided with an upper indentation groove (4111) that cooperates with the lower indentation protrusion (4211).

3. The carton forming machine with digital printing according to claim 2, characterized in that: The lower indentation roller (421) has a lower indentation groove (4212) on its outer periphery, and the upper indentation roller (411) has an upper indentation protrusion (4112) on its outer periphery that cooperates with the lower indentation groove (4212). The upper indentation member (41) and the lower indentation member (42) are used to clamp the cardboard that has passed through the longitudinal pressing station (13), and the upper indentation protrusion (4112) on the upper indentation roller (411) acts on the upper surface of the cardboard to form a downwardly recessed longitudinal indentation; and / or, It also includes a first sliding frame (43), a first sliding drive device (44), a second sliding frame (45), and a second sliding drive device (46). The first sliding frame (43) and the second sliding frame (45) are slidably mounted on the frame (1). The first sliding drive device (44) is used to drive the first sliding frame (43) to slide, and the second sliding drive device (46) is used to drive the second sliding frame (45) to slide. A lower indentation roller (421) is mounted on the first sliding frame (43), and an upper indentation roller (411) is mounted on the second sliding frame (45); and / or, It also includes a first motion device that connects the frame (1) and the upper indentation roller (411), and the first motion device works to move the upper indentation roller (411) closer to or further away from the lower indentation roller (421).

4. The carton forming machine with digital printing according to claim 3, characterized in that: The first motion device includes a first flipping frame (47) and a first flipping drive device (48). The first flipping frame (47) is flipped relative to the frame (1). The first flipping drive device (48) is used to drive the first flipping frame (47) to flip. The upper indentation roller (411) is disposed on the first flipping frame (47).

5. The carton forming machine with digital printing according to claim 1, characterized in that: The upper indentation component (41) includes an upper indentation rubber roller.

6. The carton forming machine with digital printing according to claim 5, characterized in that: It also includes a third sliding frame and a third sliding drive device, the third sliding frame being slidably mounted on the frame (1), the third sliding drive device being used to drive the third sliding frame to slide, and a lower indentation roller (421) being mounted on the third sliding frame; and / or, It also includes a second motion device that connects the frame (1) and the upper indentation roller. The second motion device works to bring the upper indentation roller closer to or further away from the lower indentation roller (421).

7. The carton forming machine with digital printing according to claim 1, characterized in that: A transverse pressing station (14) is provided on the frame (1); It also includes a horizontal pressing device (5), which is set at the horizontal pressing station (14). The horizontal pressing device (5) includes a horizontal indentation knife (51) and a lower pressing table (52). The lower pressing table (52) is located above the horizontal indentation knife (51), and the horizontal indentation knife (51) can be raised and lowered relative to the lower pressing table (52). The lateral crease knife (51) and the lower pressure table (52) are brought close to each other to form an upwardly recessed lateral crease on the lower surface of the cardboard that has been transferred through the lateral crease station (14).

8. The carton forming machine with digital printing according to claim 7, characterized in that: It also includes a grooving device (6), which is set at the transverse pressing station (14). The grooving device (6) includes a grooving knife (61) and a second support platform (62). The grooving knife (61) is located above the second support platform (62), and the grooving knife (61) can be raised and lowered relative to the second support platform (62). The grooving knife (61) and the second support table (62) are brought close to each other to create transverse grooves on the cardboard that is being transported through the transverse pressing station (14).

9. The carton forming machine with digital printing according to claim 8, characterized in that: It also includes a first lifting drive device (53), which includes a connector (531) and a lifting power device (532). The lifting power device (532) is used to drive the connector (531) to move up and down. A transverse indentation tool (51) and a grooving tool (61) are both disposed on the connector (531) to move up and down synchronously with the connector (531). The grooving tool (61) is located above the transverse indentation tool (51); and / or, It also includes a second lifting drive device (54), which drives the lower pressing table (52) to move up and down. The lower surface of the lower pressing table (52) is provided with a first clearance opening (521) for the transverse indentation knife (51) and the grooving knife (61) to pass through; and / or, The second support platform (62) and the frame (1) are fixedly arranged. The upper surface of the second support platform (62) is provided with a second clearance opening (621) for the transverse indentation knife (51) and the grooving knife (61) to pass through.

10. The carton forming machine with digital printing according to claim 9, characterized in that: The first lifting drive device (53) includes a movable beam (533) and a fourth sliding drive device (534). The movable beam (533) is fixedly mounted on the connector (531), and the grooving cutter (61) is slidably mounted on the movable beam (533). The fourth sliding drive device (534) is used to drive the grooving cutter (61) to slide; and / or, The lifting power device (532) includes an eccentric wheel (5323) and a mounting part (5324). The eccentric wheel (5323) is rotatably mounted on the frame (1). The mounting part (5324) is rotatably mounted with the eccentric wheel (5323) and the connecting piece (531) respectively, so that the eccentric wheel (5323) rotates and the mounting part (5324) and the connecting piece (531) are linked in sequence to realize the lifting of the connecting piece (531).

11. The carton forming machine with digital printing according to claim 1, characterized in that: A longitudinal cutting station (15) is provided on the frame (1); It also includes a longitudinal cutting device (7), which is set at the longitudinal cutting station (15). The longitudinal cutting device (7) includes a fifth sliding frame (71), a fifth sliding drive device (72) and a longitudinal cutting tool (73). The fifth sliding frame (71) is slidably set on the frame (1). The fifth sliding drive device (72) is used to drive the fifth sliding frame (71) to slide. The longitudinal cutting tool (73) is set on the fifth sliding frame (71), and the bottom of the longitudinal cutting tool (73) is provided with a V-shaped longitudinal cutting edge (731).

12. The carton forming machine with digital printing according to claim 11, characterized in that: The longitudinal cutting device (7) includes a lifting power component (74) for connecting the fifth sliding frame (71) and the longitudinal cutting tool (73) to drive the longitudinal cutting tool (73) to rise and fall.

13. The carton forming machine with digital printing according to claim 1, characterized in that: It also includes a transverse pressing device (5), a grooving device (6), and a longitudinal cutting device (7). On the frame (1), a transverse pressing station (14) and a longitudinal cutting station (15) are arranged in sequence on one side of the printing station (12) and the longitudinal pressing station (13). The transverse pressing device (5) and the grooving device (6) are located at the transverse pressing station (14), and the longitudinal cutting device (7) is located at the longitudinal cutting station (15); or, It also includes a transverse pressing device (5), a grooving device (6), and a longitudinal cutting device (7). On the frame (1), a transverse pressing station (14), a transverse cutting station and a longitudinal cutting station (15) are arranged in sequence on one side of the printing station (12) and the longitudinal pressing station (13). The transverse pressing device (5) is set at the transverse pressing station (14), the grooving device (6) is set at the transverse cutting station, and the longitudinal cutting device (7) is set at the longitudinal cutting station (15).

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