Conveying mechanism for carton printing machine

Abstract

The invention is applicable to the technical field of printing machines, and provides a conveying mechanism for a carton printing machine, which comprises a conveying platform, a side bracket, a plurality of conveying racks and a guide block, and further comprises a conveying assembly, a rotating assembly and a spacing regulating assembly, the conveying assembly comprises a circulating unit and an adsorption unit, the circulating unit is connected with the rotating assembly, and the adsorption unit is connected with the conveying rack; the spacing regulation and control assembly comprises a driving unit and a control unit. According to the conveying mechanism for the carton printing machine, through the mode that the multiple adsorption units are matched with the rotating assembly, the multiple conveying frames and the multiple circulating units, paperboards can be effectively adsorbed, and the adsorbed paperboards can be effectively and accurately conveyed to the feeding end of the printing machine; on the premise that the accuracy of a paperboard conveying track is ensured, batch conveying of paperboards is completed, and the distance between every two adjacent adsorption units is adjusted at equal intervals through the distance adjusting and controlling assembly, so that the adsorption units efficiently and accurately convey the paperboards with different widths.

Description

Technical Field

[0001] The invention belongs to the technical field of printing machines, and in particular relates to a conveying mechanism for a carton printing machine. Background Art

[0002] Cartons are mainly used for packaging of various articles. Due to their good performance and low cost, they are widely used in modern daily life and the demand is growing. Cartons need to go through multiple processes in the production process. For example, the outside of the carton is generally printed with advertisements to identify the types of items stored inside. When printing on the cartons, the cardboard conveying mechanism of the carton printing machine is needed to convey the cardboard to the printing machine to realize the printing of the cardboard.

[0003] The conveying mechanism of the existing carton printing machine includes a rotational connection between a roller and a guide plate, and a connection between a motor and a roller, so that in the process of guiding the cardboard, the motor can be controlled to drive the roller and the belt to move at the same speed as the conveying mechanism, so that in the process of guiding the cardboard, the corners of the cardboard are squeezed less by the belt, thereby avoiding damage to the corners of the cardboard.

[0004] The roller in the existing conveying mechanism directly presses on the surface of the cardboard. Due to the different thicknesses of the cardboard, the pressure applied by the roller has completely different effects on the transmission effect of the cardboard. A larger pressure will cause pits and other phenomena on the cardboard, affecting the flatness of the cardboard and further affecting the printing quality of the cardboard. A smaller pressure will cause the cardboard to not be effectively guided during the transmission process, and thus easily cause deviation and other phenomena, which will also affect the printing quality of the cardboard.

[0005] Therefore, in view of the above situation, it is urgent to develop a conveying mechanism for a carton printing machine to overcome the shortcomings in current practical applications. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide a conveying mechanism for a carton printing machine to solve the problems in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A conveying mechanism for a carton printing machine, comprising a conveying platform arranged at one side of a feeding end of the carton printing machine, side brackets symmetrically installed at both ends of the conveying platform, a plurality of conveying racks distributed between two side brackets, two guide blocks installed on the conveying racks, and further comprising:

[0009] A conveying assembly, the conveying assembly includes a circulation unit and an adsorption unit, the circulation unit is rotatably mounted on the conveying frame, the circulation unit adopts a U-shaped circulation structure, two groups of adsorption units are symmetrically mounted on the outer wall of the circulation unit, and one end of the adsorption unit conflicts with the surface of the cardboard on the conveying platform;

[0010] A rotating assembly, the rotating assembly is mounted on a side bracket, and an output end of the rotating assembly passes through a plurality of conveying racks and is connected to a circulation unit on the conveying racks;

[0011] The rotating assembly drives multiple circulation units to rotate synchronously, and the multiple circulation units drive their respective two groups of adsorption units to rotate cyclically. When the adsorption units rotate to conflict with the surface of the cardboard, the adsorption units adsorb the surface of the cardboard through cyclic rotation and drive it to move toward the direction close to the feeding end of the carton printing machine. The multiple adsorption units realize batch transportation of cardboard by driving the adsorbed cardboard thereon to move;

[0012] A spacing control component, the spacing control component includes a driving unit and a control unit, the driving units are respectively mounted on two side brackets and are respectively movably connected to guide blocks on multiple conveying racks, and one end of the driving unit is screwed to the guide block on one of the conveying racks, one end of the control unit is mounted on one side of a side bracket, and the other end of the control unit is distributed on multiple conveying racks;

[0013] The driving unit drives a conveyor frame screwed thereto to move, and the conveyor frame drives the other conveyor frames to move synchronously by moving and cooperating with the control unit, and the multiple conveyor frames drive the circulation units and adsorption units thereon to move equidistantly, and the circulation units and adsorption units change the distance between the adjacent circulation units and adsorption units by equidistant movement, and the multiple adsorption units achieve effective adsorption of cardboards of different widths by equidistant movement and drive them to move toward the direction close to the feed end of the carton printing machine.

[0014] As a further technical solution of the present invention, the circulation unit comprises:

[0015] Rotate a rotating member A installed on one end of the conveying frame;

[0016] Install the sleeve on the other end of the conveyor frame;

[0017] A rotating member B is arranged on the other end of the conveying frame, bearings are installed on both sides of the rotating member B, the inner wall of the bearing is fixedly connected to the outer wall of the sleeve, and a connecting groove matching with the rotating assembly is opened in the middle of the rotating member B; and

[0018] The two ends of the circulating part are respectively sleeved on the outside of the rotating part A and the rotating part B, and the two ends of the inner side of the circulating part are respectively meshed with the rotating part A and the rotating part B. The circulating part is symmetrically provided with mounting holes for installing two groups of adsorption units. The circulating part adopts a U-shaped circulating structure. The position where the circulating part is meshed with the rotating part B and the rotating part A is an arc structure, and the rest of the position of the circulating part is a horizontal structure parallel to the cardboard.

[0019] As a further technical solution of the present invention, the adsorption unit comprises:

[0020] A sleeve module having one end mounted in the mounting hole and the other end of the sleeve module being located outside the circulation member; and

[0021] One end of the adsorption module is slidably mounted in the sleeve module, and the other end of the adsorption module extends out of the sleeve module and contacts the surface of the paperboard.

[0022] As a further technical solution of the present invention, the sleeve module comprises:

[0023] An outer sleeve A having one end locked in the mounting hole, and the other end of the outer sleeve A being located outside the circulating member; and

[0024] The outer sleeve B is connected to the outer sleeve A through a flange to form an integral outer sleeve. The outer sleeve A and the outer sleeve B are both hollow inside, and a sliding groove is provided on the inner wall of the outer sleeve B to slide with the adsorption module.

[0025] As a further technical solution of the present invention, the adsorption module comprises:

[0026] A slider that slidably cooperates with the slide groove;

[0027] An inner sleeve with an outer wall fixedly connected to the slider, one end of the inner sleeve extending outside the outer sleeve B;

[0028] A suction cup fixed to one end of the inner sleeve;

[0029] A rack A fixed on the outer wall of the inner sleeve and extending into the outer sleeve A;

[0030] Rotate a gear mounted on the inner wall of the outer sleeve A, one side of the gear meshing with the rack A;

[0031] A sliding column with one end located in the outer sleeve B, one end of the sliding column is connected to the inner wall of the outer sleeve A through a spring, and the other end of the sliding column passes through the inner sleeve and extends to the outside of the suction cup;

[0032] A rack B fixed on the outer wall of one end of the sliding column, wherein the rack B is meshed with the other side of the gear; and

[0033] A fitting piece is fixed on the other end of the slide column, the outer wall of the fitting piece is fitted with the inner wall of the inner sleeve, a ball protruding from the end wall is installed on the end wall of one end of the fitting piece, and the ball and the suction cup are in contact with the surface of the cardboard.

[0034] As a further technical solution of the present invention, the rotating assembly includes:

[0035] a motor B mounted on a side bracket; and

[0036] The two ends are respectively rotatably mounted on the two side brackets, and the shaft is fixedly connected to the output end of the motor B through the transmission member B. A connecting key is fixed on the shaft, and the connecting key and the connecting body of the shaft are slidably matched with the connecting groove on the rotating member B.

[0037] As a further technical solution of the present invention, the driving unit includes:

[0038] Two guide posts with both ends mounted on the two side brackets, one end of one of the guide posts is provided with a thread, and the thread is screwed to a guide block on a conveyor frame at the end; and

[0039] A motor A is fixed on a side bracket, and the output end of the motor A is connected to a guide column with threads through a transmission member A.

[0040] As a further technical solution of the present invention, the control unit includes:

[0041] A connecting column fixed to the conveying frame;

[0042] A connecting rod A is rotatably mounted on the connecting column, wherein both ends of the connecting rod A are rotatably connected to the connecting rod A on the adjacent conveying frame via a connecting shaft, one end of the connecting rod A on the conveying frame at the end is rotatably connected to the connecting rod A on the adjacent conveying frame, and one end of the connecting rod A on the conveying frame at the start end is rotatably connected to the connecting rod A on the adjacent conveying frame; and

[0043] A connecting rod B is fixed on a side bracket, and the connecting rod B is rotatably connected to the other end of the connecting rod A on the conveying frame located at the starting end.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The rotating assembly drives multiple circulation units to rotate synchronously, and the multiple circulation units drive their respective two groups of adsorption units to rotate cyclically. When the adsorption unit rotates to conflict with the surface of the cardboard, the adsorption unit can adsorb its surface and drive it to move toward the direction close to the feeding end of the carton printing machine, so as to realize batch transportation of cardboard. At the same time, the adsorption method can avoid the deviation of the cardboard during the transportation process, ensure the accuracy of the cardboard transportation trajectory, and then ensure the printing quality and printing efficiency of the cardboard;

[0046] The driving unit can drive a conveyor frame screwed thereto to move. By moving and cooperating with the control unit, one conveyor frame can drive the other conveyor frames to move synchronously, thereby realizing equidistant movement of multiple conveyor frames, ensuring the stability and coordination of the overall structure. Multiple conveyor frames drive the circulation units and adsorption units thereon to move equidistantly. The circulation units and adsorption units change the distance between adjacent circulation units and adsorption units by equidistant movement, so that the adsorption unit can effectively adsorb cardboard of different widths, ensuring that it can accurately enter the feed end of the carton printing machine, which can not only improve the printing quality and printing efficiency of the cardboard, but also enhance the flexibility and adaptability of the conveying mechanism, so that no matter whether it is narrow or wide cardboard, the conveying mechanism can be quickly adjusted and ensure a stable printing effect, thereby realizing efficient and accurate conveying of cardboard of different widths.

[0047] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic structural diagram of a conveying mechanism for a carton printing machine from a first viewing angle provided in an embodiment of the present invention.

[0049] Figure 2 A schematic structural diagram of a conveying mechanism for a carton printing machine from a second viewing angle provided in an embodiment of the present invention.

[0050] Figure 3 A front view of a conveying mechanism structure for a carton printing machine provided in an embodiment of the present invention.

[0051] Figure 4 for Figure 2 Enlarged view of the structure of the conveyor rack, circulation unit and adsorption unit.

[0052] Figure 5 for Figure 4 Structural side view of the conveyor rack, circulation unit and adsorption unit in the inclined direction.

[0053] Figure 6 for Figure 5Schematic diagram of the structure of the partial cross-section of the conveying rack, circulation unit and adsorption unit.

[0054] Figure 7 for Figure 4 A half-section structural side view of the conveyor rack, circulation unit and adsorption unit.

[0055] Figure 8 for Figure 7 A magnified view of the structure in the middle.

[0056] Reference numerals: 100 - conveying platform, 200 - side bracket, 300 - driving unit, 310 - motor A, 320 - transmission member A, 330 - guide column, 340 - thread, 400 - conveying frame, 410 - guide block, 500 - control unit, 510 - connecting rod A, 520 - connecting column, 530 - connecting shaft, 540 - connecting rod B, 600 - rotating assembly, 610 - motor B, 620 - transmission member B, 630 - rotating shaft, 640 - connecting key, 700 - circulation unit, 710 - rotating member A, 7 20-rotating part B, 730-circulating part, 740-connecting groove, 750-bearing, 760-sleeve, 770-mounting hole, 800-adsorption unit, 810-sleeve module, 811-outer sleeve A, 812-outer sleeve B, 813-flange, 814-slide groove, 820-adsorption module, 821-inner sleeve, 822-slider, 823-suction cup, 824-rack A, 825-gear, 826-rack B, 827-slide column, 828-fitting part, 829-spring, 900-cardboard. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0058] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0059] like Figures 1 to 8 As shown, a conveying mechanism for a carton printing machine provided as an embodiment of the present invention includes a conveying platform 100 arranged on one side of the feeding end of the carton printing machine, side brackets 200 are symmetrically installed at both ends of the conveying platform 100, and a plurality of conveying racks 400 are distributed between the two side brackets 200. Two guide blocks 410 are installed on the conveying rack 400, and further include:

[0060] A conveying assembly, the conveying assembly includes a circulation unit 700 and an adsorption unit 800, the circulation unit 700 is rotatably mounted on the conveying frame 400, the circulation unit 700 preferably adopts a U-shaped circulation structure, two groups of adsorption units 800 are symmetrically mounted on the outer wall of the circulation unit 700, and one end of the adsorption unit 800 conflicts with the surface of the cardboard 900 on the conveying platform 100;

[0061] A rotating assembly 600, wherein the rotating assembly 600 is mounted on a side bracket 200, and an output end of the rotating assembly 600 passes through a plurality of conveying racks 400 and is connected to a circulation unit 700 on the conveying racks 400;

[0062] The rotating assembly 600 drives the multiple circulation units 700 to rotate synchronously, and the multiple circulation units 700 drive their respective two groups of adsorption units 800 to rotate cyclically. When the adsorption unit 800 rotates to conflict with the surface of the cardboard 900, the adsorption unit 800 can adsorb the surface and drive it to move toward the direction close to the feeding end of the carton printing machine, so as to realize batch transportation of the cardboard 900. At the same time, the adsorption method can avoid the deviation of the cardboard 900 during the transportation process, ensure the accuracy of the transportation trajectory of the cardboard 900, and then ensure the printing quality and printing efficiency of the cardboard 900;

[0063] A spacing control component, the spacing control component includes a driving unit 300 and a control unit 500, the driving units 300 are respectively mounted on two side brackets 200 and are respectively movably connected to guide blocks 410 on multiple conveying racks 400, and one end of the driving unit 300 is screwed to the guide block 410 on one of the conveying racks 400, one end of the control unit 500 is mounted on one side of a side bracket 200, and the other end of the control unit 500 is distributed on multiple conveying racks 400;

[0064] When printing on paperboards 900 of different widths, the driving unit 300 can drive a conveying frame 400 screwed thereto to move by rotating, and one conveying frame 400 can drive the other conveying frames 400 to move synchronously by moving and cooperating with the control unit 500, thereby realizing the equidistant movement of multiple conveying frames 400, ensuring the stability and coordination of the overall structure, and multiple conveying frames 400 drive the circulation units 700 and the adsorption units 800 thereon to move equidistantly, and the circulation units 700 and the adsorption units 800 can move by By changing the distance between the adjacent circulation unit 700 and adsorption unit 800 in an equidistant manner, the adsorption unit 800 can effectively adsorb cardboards 900 of different widths, ensuring that they can accurately enter the feed end of the carton printing machine, which not only improves the printing quality and printing efficiency of the cardboard 900, but also enhances the flexibility and adaptability of the conveying mechanism, so that no matter whether it is narrow or wide cardboard 900, the conveying mechanism can be quickly adjusted and ensure a stable printing effect, thereby realizing efficient and accurate conveying of cardboards 900 of different widths.

[0065] like Figures 2 to 7 As shown, as a preferred embodiment of the present invention, the circulation unit 700 includes a rotating member A710, a rotating member B720, a circulation member 730, a connecting groove 740, a bearing 750, a sleeve 760 and a mounting hole 770. The rotating member A710 is rotatably mounted on one end of the conveying frame 400. Bearings 750 are mounted on both sides of the rotating member B720. The inner wall of the bearing 750 is fixedly connected to the outer wall of the sleeve 760. The sleeve 760 is mounted on the other end of the conveying frame 400. The middle part of the rotating member B720 is provided with a The connecting groove 740 cooperates with the rotating component 600, and the two ends of the circulation part 730 are respectively arranged on the outside of the rotating part A710 and the rotating part B720 and are respectively engaged with the rotating part A710 and the rotating part B720. The circulation part 730 is symmetrically provided with mounting holes 770 for installing two groups of adsorption units 800. The circulation part 730 preferably adopts a U-shaped circulation structure, and the position where it is engaged with the rotating part B720 and the rotating part A710 is an arc structure, and the remaining positions are horizontal structures parallel to the cardboard 900.

[0066] In this embodiment, the rotating component 600 drives multiple rotating parts B720 to rotate synchronously through the connecting groove 740. The rotation of the multiple rotating parts B720 drives the respectively meshed circulating parts 730 to rotate. The circulating parts 730 drive the respective two groups of adsorption units 800 to rotate in a circular manner, so that the adsorption unit 800 can rotate to a position that conflicts with the cardboard 900 and adsorbs it. The adsorption unit 800 can adsorb its surface and drive it to move toward the direction close to the feed end of the carton printing machine, thereby realizing batch transportation of the cardboard 900. At the same time, the adsorption method can avoid the deviation of the cardboard 900 during the transportation process, thereby ensuring the accuracy of the transportation trajectory of the cardboard 900, and then ensuring the printing quality and printing efficiency of the cardboard 900.

[0067] In a preferred embodiment, the circulating member 730 is preferably a synchronous belt with meshing teeth disposed on the inner side;

[0068] The rotating member A710 and the rotating member B720 are preferably synchronous wheels meshing with the circulating member 730;

[0069] Grooves for installing bearings 750 are provided on both sides of the rotating part B720. The bearings 750 are installed in the grooves, and the outer wall of the bearing 750 is fixedly connected to the inner wall of the groove. The inner wall of the bearing 750 is fixedly connected to the outer wall of the sleeve 760.

[0070] like Figures 2 to 8 As shown, as a preferred embodiment of the present invention, the adsorption unit 800 includes a sleeve module 810 and an adsorption module 820, one end of the sleeve module 810 is installed in the mounting hole 770, the other end of the sleeve module 810 is located outside the circulating part 730, one end of the adsorption module 820 is slidably installed in the sleeve module 810, and the other end of the adsorption module 820 extends outside the sleeve module 810 and conflicts with the surface of the cardboard 900.

[0071] like Figures 2 to 8 As shown, as a preferred embodiment of the present invention, the sleeve module 810 includes an outer sleeve A811, an outer sleeve B812, a flange 813 and a slide groove 814, one end of the outer sleeve A811 is locked in the mounting hole 770, the other end of the outer sleeve A811 is located outside the circulating part 730 and is connected to the outer sleeve B812 as a whole through the flange 813, the outer sleeve A811 and the outer sleeve B812 are both hollow inside, and the inner wall of the outer sleeve B812 is provided with a slide groove 814 that slides with the adsorption module 820.

[0072] In this embodiment, one end of the outer sleeve A811 locked to the circulating part 730 is hidden in the mounting hole 770 and does not protrude outside the mounting hole 770. In this way, during the engagement process of the circulating part 730 with the rotating part A710 or the rotating part B720, the outer sleeve A811 will not cause motion interference, so that the circulating part 730A can effectively drive the outer sleeve A811 and the outer sleeve B812 to perform a circular motion.

[0073] In a preferred embodiment, the outer sleeve A811 and the outer sleeve B812 are connected as a whole via a flange 813, which makes it easy to disassemble and repair the adsorption module 820 inside at a later time, and facilitates the rapid installation of the adsorption module 820, thereby enhancing the flexibility and convenience of the conveying mechanism.

[0074] like Figures 2 to 8 As shown, as a preferred embodiment of the present invention, the adsorption module 820 includes an inner sleeve 821, a slider 822, a suction cup 823, a rack A824, a gear 825, a rack B826, a slide column 827, a fitting 828 and a spring 829, and a slider 822 that slidably cooperates with the slide groove 814 is distributed on the outer wall of the inner sleeve 821, one end of the inner sleeve 821 extends to the outside of the outer sleeve B812 and is fixedly connected to the suction cup 823, and a rack A824 that extends into the outer sleeve A811 is fixed on the outer wall of one end of the inner sleeve 821, and the rack A824 is connected to the gear installed on the inner wall of the outer sleeve A811. One side of the gear 825 is meshed with the rack B826 fixed on the outer wall of the sliding column 827, one end of the sliding column 827 is located in the outer sleeve B812 and is connected to the inner wall of the outer sleeve A811 through a spring 829, the other end of the sliding column 827 passes through the inner sleeve 821 and extends to the outside of the suction cup 823, a fitting 828 is fixed on the other end of the sliding column 827, and the outer wall of the fitting 828 is fitted with the inner wall of the inner sleeve 821, and a ball protruding from the end wall is installed on the end wall of one end of the fitting 828, and the ball and the suction cup 823 both conflict with the surface of the cardboard 900.

[0075] In this embodiment, the circulation member 730 drives the outer sleeve A811 to cyclically rotate, and the outer sleeve A811 drives the adsorption module 820 to cyclically rotate through the outer sleeve B812, so that the adsorption module 820 also enters the circulation state synchronously;

[0076] When the adsorption module 820 rotates to the arc position on the circulation member 730 and the ball of the fitting member 828 thereon contacts the surface of the cardboard 900, the fitting member 828 can drive the sliding column 827 and the rack B826 thereon to move toward the inside of the outer sleeve A811 by performing a circular motion along the circulation member 730, the rack B826 drives the gear 825 to rotate, the gear 825 drives the inner sleeve 821 to slide toward the surface of the cardboard 900 through the rack A824, the inner sleeve 821 drives the suction cup 823 to move toward the surface of the cardboard 900, the suction cup 823 can gradually fit with the surface of the cardboard 900 by rotating along the arc track on the circulation member 730, and at the same time, the fitting member 828 and the ball thereon are also gradually moving toward the inside of the inner sleeve 821;

[0077] When the suction cup 823 is fully attached to the surface of the cardboard 900 and the suction cup 823 has not circulated to the right below the horizontal position on the circulation member 730, the ball bearings always contact the surface of the cardboard 900, and at this time, the fitting member 828 moves to the inside of the inner sleeve 821, and the space surrounded by the fitting member 828, the inner sleeve 821, the suction cup 823 and the surface of the cardboard 900 is a closed space. The fitting member 828 sucks the gas in the closed space by moving to make it a negative pressure space, which can enhance the adsorption capacity of the suction cup 823 on the surface of the cardboard 900, avoid the deviation of the cardboard 900 during the transportation process, and ensure the accuracy of the transportation track of the cardboard 900;

[0078] Once the suction cup 823 circulates to just below the horizontal position on the circulating member 730, the circulating member 730 can drive the adsorbed cardboard 900 to translate smoothly through the suction cup 823. During the translation process, the cardboard 900 moves toward the direction close to the feed end of the carton printing machine, thereby realizing batch transportation of the cardboard 900. This efficient transportation method not only improves the printing quality and efficiency of the cartons, but also saves a lot of manpower and time costs for the enterprise.

[0079] In a preferred embodiment, the fitting member 828 preferably adopts a circular block structure, whose outer diameter is slightly smaller than the inner diameter of the inner sleeve 821, so that the fitting member 828 can better fit with the inner wall of the inner sleeve 821, and a sealing ring is installed on the outer wall of the fitting member 828 to contact the inner wall of the inner sleeve 821, so as to enhance the adsorption capacity of the suction cup 823, and the thickness of the ball protruding from the fitting member 828 is greater than the overall thickness of the suction cup 823, so that after the suction cup 823 fully fits the surface of the paperboard 900, the ball can drive the fitting member 828 to move into the inner sleeve 821, further enhancing the adsorption capacity of the suction cup 823, and ensuring the conveying quality and conveying accuracy of the paperboard 900;

[0080] The suction cup 823 preferably adopts a ring structure made of a material with a certain flexibility.

[0081] like Figures 1 to 5 As shown, as a preferred embodiment of the present invention, the rotating assembly 600 includes a motor B610, a transmission member B620, a rotating shaft 630 and a connecting key 640. The motor B610 is fixed on a side bracket 200. The output end of the motor B610 is connected to the rotating shaft 630 whose two ends are rotatably mounted on two side brackets 200 respectively through the transmission member B620. A connecting key 640 is fixed on the rotating shaft 630. The connecting body between the connecting key 640 and the rotating shaft 630 is slidably matched with the connecting groove 740 on the rotating member B720.

[0082] In this embodiment, the motor B610 drives the rotating shaft 630 and the connecting key 640 to rotate through the transmission part B620. The rotating shaft 630 and the connecting key 640 can drive the rotating part B720 to rotate through the connecting groove 740. The rotating part B720 can drive the circulating part 730 to rotate in a circular manner by cooperating with the rotating part A710. The circulating part 730 drives the outer sleeve A811 to rotate in a circular manner. The outer sleeve A811 drives the adsorption module 820 to rotate in a circular manner through the outer sleeve B812, so that the adsorption module 820 also enters the circulation state synchronously, thereby realizing batch transportation of cardboards 900.

[0083] In a preferred embodiment, the transmission member B620 preferably adopts a transmission structure composed of a pulley and a belt.

[0084] like Figures 1 to 3 As shown, as a preferred embodiment of the present invention, the driving unit 300 includes a motor A310, a transmission member A320, a guide column 330 and a thread 340. Two guide columns 330 are provided, and both ends of the two guide columns 330 are installed on two side brackets 200. One end of one guide column 330 is provided with a thread 340, and the thread 340 is screwed to a guide block 410 on a conveying frame 400 located at the end. The motor A310 is fixed on a side bracket 200, and the output end of the motor A310 is connected to the guide column 330 provided with the thread 340 through the transmission member A320.

[0085] In this embodiment, when printing on cardboards 900 of different widths, the motor A310 drives the guide column 330 with a thread 340 to rotate through the transmission member A320. The guide column 330 drives the guide block 410 screwed to the thread 340 thereon to move by rotation. The guide block 410 drives a conveyor rack 400 connected thereto to move. One conveyor rack 400 can drive the other conveyor racks 400 to move synchronously by moving and cooperating with the control unit 500, thereby realizing the equidistant movement of multiple conveyor racks 400 and ensuring the stability and coordination of the overall structure.

[0086] In a preferred embodiment, the transmission member A320 preferably adopts a transmission structure composed of a pulley and a belt.

[0087] like Figures 1 to 3 As shown, as a preferred embodiment of the present invention, the control unit 500 includes a connecting rod A510, a connecting column 520, a connecting shaft 530 and a connecting rod B540, the connecting column 520 is fixed on the conveying frame 400, and the connecting rod A510 is rotatably installed on the connecting column 520, and both ends of the connecting rod A510 are rotatably connected to the connecting rod A510 on the adjacent conveying frame 400 through the connecting shaft 530, one end of the connecting rod A510 on the conveying frame 400 located at the end is rotatably connected to the connecting rod A510 on the adjacent conveying frame 400, one end of the connecting rod A510 on the conveying frame 400 located at the starting end is rotatably connected to the connecting rod A510 on the adjacent conveying frame 400, and the other end is rotatably connected to the connecting rod B540 fixed on a side bracket 200.

[0088] In this embodiment, the guide block 410 threadedly connected to the thread 340 drives the conveying rack 400 at the end to move. The conveying rack 400 at the end can drive the adjacent conveying rack 400 to move by rotating the connecting rod A510 thereon and the connecting rod A510 on the adjacent conveying rack 400. By analogy, one conveying rack 400 can drive the other conveying racks 400 to move synchronously by moving, thereby realizing the equidistant movement of multiple conveying racks 400, and multiple conveying racks 400 drive the circulation units 700 and the adsorption units 800 thereon to move equidistantly. The circulation unit 700 and the adsorption unit 800 change the distance between the adjacent circulation unit 700 and the adsorption unit 800 by equidistant movement, so that the adsorption unit 800 can effectively adsorb cardboard 900 of different widths, ensuring that it can accurately enter the feed end of the carton printing machine, which not only improves the printing quality and printing efficiency of the cardboard 900, but also enhances the flexibility and adaptability of the conveying mechanism, so that no matter whether it is narrow or wide cardboard 900, the conveying mechanism can be quickly adjusted and ensure a stable printing effect, thereby realizing efficient and accurate conveying of cardboard 900 of different widths.

[0089] The working principle of the present invention is:

[0090] When printing on cardboards 900 of different widths, the motor A310 drives the guide column 330 with the thread 340 to rotate through the transmission member A320. The guide column 330 drives the guide block 410 screwed to the thread 340 to move by rotating. The guide block 410 screwed to the thread 340 drives the conveying frame 400 at the end to move. The conveying frame 400 at the end can drive the adjacent conveying frame 400 to move by rotatingly connecting the connecting rod A510 thereon and the connecting rod A510 on the adjacent conveying frame 400. By analogy, one conveyor rack 400 can drive the other conveyor racks 400 to move synchronously by moving, thereby realizing the equidistant movement of multiple conveyor racks 400, and multiple conveyor racks 400 drive the circulation units 700 and adsorption units 800 thereon to move equidistantly, and the circulation units 700 and adsorption units 800 change the distance between the adjacent circulation units 700 and adsorption units 800 by equidistant movement, so that the adsorption unit 800 can effectively adsorb paperboards 900 of different widths, ensuring that they can accurately enter the feeding end of the carton printing machine;

[0091] The motor B610 drives the rotating shaft 630 and the connecting key 640 to rotate through the transmission member B620. The rotating shaft 630 and the connecting key 640 can drive the rotating member B720 to rotate through the connecting groove 740. The rotating member B720 can drive the circulating member 730 to rotate in a circular manner by cooperating with the rotating member A710. The circulating member 730 drives the outer sleeve A811 to rotate in a circular manner. The outer sleeve A811 drives the adsorption module 820 to rotate in a circular manner through the outer sleeve B812, so that the adsorption module 820 also enters a circulating state synchronously.

[0092] When the adsorption module 820 rotates to the arc position on the circulation member 730 and the ball of the fitting member 828 thereon contacts the surface of the cardboard 900, the fitting member 828 can drive the sliding column 827 and the rack B826 thereon to move toward the inside of the outer sleeve A811 by performing a circular motion along the circulation member 730, the rack B826 drives the gear 825 to rotate, the gear 825 drives the inner sleeve 821 to slide toward the surface of the cardboard 900 through the rack A824, the inner sleeve 821 drives the suction cup 823 to move toward the surface of the cardboard 900, the suction cup 823 can gradually fit with the surface of the cardboard 900 by rotating along the arc track on the circulation member 730, and at the same time, the fitting member 828 and the ball thereon are also gradually moving toward the inside of the inner sleeve 821;

[0093] When the suction cup 823 is fully attached to the surface of the cardboard 900 and the suction cup 823 has not circulated to the right below the horizontal position on the circulation member 730, the ball bearings always contact the surface of the cardboard 900, and at this time, the fitting member 828 moves to the inside of the inner sleeve 821, and the space surrounded by the fitting member 828, the inner sleeve 821, the suction cup 823 and the surface of the cardboard 900 is a closed space. The fitting member 828 sucks the gas in the closed space by moving to make it a negative pressure space, which can enhance the adsorption capacity of the suction cup 823 on the surface of the cardboard 900, avoid the deviation of the cardboard 900 during the transportation process, and ensure the accuracy of the transportation track of the cardboard 900;

[0094] Once the suction cup 823 circulates to the position just below the horizontal position on the circulation member 730, the circulation member 730 can drive the adsorbed cardboard 900 to translate smoothly through the suction cup 823. During the translation process, the cardboard 900 moves toward the feeding end of the carton printing machine, thereby realizing batch transportation of the cardboard 900.

[0095] The above is the working principle of the conveying mechanism of the carton printing machine.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying mechanism for a carton printing machine, comprising a conveying platform arranged on one side of the feeding end of the carton printing machine, side brackets are symmetrically installed at both ends of the conveying platform, a plurality of conveying racks are distributed between two side brackets, and two guide blocks are installed on the conveying rack, characterized in that: Also includes: A conveying assembly, the conveying assembly includes a circulation unit and an adsorption unit, the circulation unit is rotatably mounted on the conveying frame, the circulation unit adopts a U-shaped circulation structure, two groups of adsorption units are symmetrically mounted on the outer wall of the circulation unit, and one end of the adsorption unit conflicts with the surface of the cardboard on the conveying platform; A rotating assembly, the rotating assembly is mounted on a side bracket, and an output end of the rotating assembly passes through a plurality of conveying racks and is connected to a circulation unit on the conveying racks; The rotating assembly drives multiple circulation units to rotate synchronously, and the multiple circulation units drive their respective two groups of adsorption units to rotate cyclically. When the adsorption units rotate to conflict with the surface of the cardboard, the adsorption units adsorb the surface of the cardboard through cyclic rotation and drive it to move toward the direction close to the feeding end of the carton printing machine. The multiple adsorption units realize batch transportation of cardboard by driving the adsorbed cardboard thereon to move; A spacing control component, the spacing control component includes a driving unit and a control unit, the driving units are respectively mounted on two side brackets and are respectively movably connected to guide blocks on multiple conveying racks, and one end of the driving unit is screwed to the guide block on one of the conveying racks, one end of the control unit is mounted on one side of a side bracket, and the other end of the control unit is distributed on multiple conveying racks; The driving unit drives a conveyor frame screwed thereto to move, and the conveyor frame drives the other conveyor frames to move synchronously by moving and cooperating with the control unit, and the multiple conveyor frames drive the circulation units and adsorption units thereon to move equidistantly, and the circulation units and adsorption units change the distance between the adjacent circulation units and adsorption units by equidistant movement, and the multiple adsorption units achieve effective adsorption of cardboards of different widths by equidistant movement and drive them to move toward the direction close to the feed end of the carton printing machine.

2. The conveying mechanism for a carton printing machine according to claim 1, characterized in that: The circulation unit comprises: Rotate a rotating member A installed on one end of the conveying frame; Install the sleeve on the other end of the conveyor frame; A rotating member B is arranged on the other end of the conveying frame, bearings are installed on both sides of the rotating member B, the inner wall of the bearing is fixedly connected to the outer wall of the sleeve, and a connecting groove matching with the rotating assembly is opened in the middle of the rotating member B; and The two ends of the circulating part are respectively sleeved on the outside of the rotating part A and the rotating part B, and the two ends of the inner side of the circulating part are respectively meshed with the rotating part A and the rotating part B. The circulating part is symmetrically provided with mounting holes for installing two groups of adsorption units. The circulating part adopts a U-shaped circulating structure. The position where the circulating part is meshed with the rotating part B and the rotating part A is an arc structure, and the rest of the position of the circulating part is a horizontal structure parallel to the cardboard.

3. The conveying mechanism for a carton printing machine according to claim 2, characterized in that: The adsorption unit comprises: A sleeve module having one end mounted in the mounting hole and the other end of the sleeve module being located outside the circulation member; and One end of the adsorption module is slidably mounted in the sleeve module, and the other end of the adsorption module extends out of the sleeve module and contacts the surface of the paperboard.

4. The conveying mechanism for a carton printing machine according to claim 3, characterized in that: The sleeve module comprises: An outer sleeve A having one end locked in the mounting hole, and the other end of the outer sleeve A being located outside the circulating member; and The outer sleeve B is connected to the outer sleeve A through a flange to form an integral outer sleeve. The outer sleeve A and the outer sleeve B are both hollow inside, and a sliding groove is provided on the inner wall of the outer sleeve B to slide with the adsorption module.

5. The conveying mechanism for a carton printing machine according to claim 4, characterized in that: The adsorption module comprises: A slider that slidably cooperates with the slide groove; An inner sleeve with an outer wall fixedly connected to the slider, one end of the inner sleeve extending outside the outer sleeve B; A suction cup fixed to one end of the inner sleeve; A rack A fixed on the outer wall of the inner sleeve and extending into the outer sleeve A; Rotate a gear mounted on the inner wall of the outer sleeve A, one side of the gear meshing with the rack A; A sliding column with one end located in the outer sleeve B, one end of the sliding column is connected to the inner wall of the outer sleeve A through a spring, and the other end of the sliding column passes through the inner sleeve and extends to the outside of the suction cup; A rack B fixed on the outer wall of one end of the sliding column, wherein the rack B is meshed with the other side of the gear; and A fitting piece is fixed on the other end of the slide column, the outer wall of the fitting piece is fitted with the inner wall of the inner sleeve, a ball protruding from the end wall is installed on the end wall of one end of the fitting piece, and the ball and the suction cup are in contact with the surface of the cardboard.

6. The conveying mechanism for a carton printing machine according to claim 2, characterized in that: The rotating assembly comprises: a motor B mounted on a side bracket; and The two ends are respectively rotatably mounted on the two side brackets, and the shaft is fixedly connected to the output end of the motor B through the transmission member B. A connecting key is fixed on the shaft, and the connecting key and the connecting body of the shaft are slidably matched with the connecting groove on the rotating member B.

7. The conveying mechanism for a carton printing machine according to claim 1, characterized in that: The driving unit comprises: Two guide posts with both ends mounted on the two side brackets, one end of one of the guide posts is provided with a thread, and the thread is screwed to a guide block on a conveyor frame at the end; and A motor A is fixed on a side bracket, and the output end of the motor A is connected to a guide column with threads through a transmission member A.

8. The conveying mechanism for a carton printing machine according to claim 1, characterized in that: The control unit comprises: A connecting column fixed to the conveying frame; A connecting rod A is rotatably mounted on the connecting column, wherein both ends of the connecting rod A are rotatably connected to the connecting rod A on the adjacent conveying frame via a connecting shaft, one end of the connecting rod A on the conveying frame at the end is rotatably connected to the connecting rod A on the adjacent conveying frame, and one end of the connecting rod A on the conveying frame at the start end is rotatably connected to the connecting rod A on the adjacent conveying frame; and A connecting rod B is fixed on a side bracket, and the connecting rod B is rotatably connected to the other end of the connecting rod A on the conveying frame located at the starting end.

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