A crease-proof carton packaging printing device
By using pressure rollers and guiding mechanisms in the carton printing device, the problem of wrinkles caused by cartons of different thicknesses during transportation is solved, achieving flat material transportation and precise printing, and improving printing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING ZHENGCHENGXIN PACKAGING PROD CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-29
AI Technical Summary
When existing carton printing equipment processes corrugated cartons of different thicknesses, the material is prone to wrinkles due to uneven transmission tension, warping, or stacking pressure. This results in insufficient contact between the printing plate and the carton surface, leading to problems such as blurred images and inaccurate registration, which affects printing quality.
The auxiliary mechanism employs a first and second pressing roller in conjunction, with a motor-driven sprocket and chain driving a rotating shaft to adjust the spacing between the pressing rollers and extrude the material in opposite directions to eliminate wrinkles. At the same time, guide blocks and guide plates guide the material to ensure it remains flat during transport.
It effectively eliminates wrinkles caused by uneven transmission tension, warping, or stacking pressure, ensuring that materials remain flat before printing, avoiding blurry images and misregistration, and significantly improving printing quality.
Smart Images
Figure CN224296810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box printing technology, and more specifically, to a wrinkle-resistant cardboard box packaging printing device. Background Technology
[0002] A carton packaging printing device is an automated equipment used to print graphic information on the surface of corrugated cardboard boxes. It achieves packaging labeling and brand display through processes such as plate mounting, inking, printing, and paper feeding. For example, the carton printing machine proposed in application number "CN202221997092.1" includes a printing support base, a first lifting drive device, a second lifting drive device, a pressure plate, an ink storage layer, and a printing plate. The first lifting drive device is installed on the frame and drives the printing support base to rise and fall. The printing plate is installed at the bottom of the printing support base. The pressure plate is installed inside the printing support base and is driven to rise and fall by the second lifting drive device, located above the printing plate. An ink storage layer is provided between the pressure plate and the printing plate. The first lifting drive device, the second lifting drive device, and the conveying device are all controlled and coordinated by a controller.
[0003] However, in the above technical solutions, when processing corrugated boxes of different thicknesses, the material is prone to wrinkles due to uneven transmission tension, self-warping, or stacking pressure. These wrinkles can lead to insufficient contact between the printing plate and the surface of the box, resulting in blurred images and inaccurate registration, which seriously affects the printing quality. Therefore, we propose a wrinkle-resistant carton packaging printing device to solve the above problems. Utility Model Content
[0004] The main purpose of this utility model is to provide a wrinkle-resistant cardboard box packaging printing device, which solves the problem that when processing corrugated cardboard boxes of different thicknesses, the material is prone to wrinkles due to uneven transmission tension, self-warping, or stacking pressure. These wrinkles will cause insufficient contact between the printing plate and the cardboard box surface, resulting in blurred images, misregistration, and other issues that seriously affect the printing quality.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A wrinkle-resistant cardboard packaging printing apparatus includes a workbench. A first conveyor belt and a second conveyor belt are respectively installed at both ends of the workbench's interior. An auxiliary mechanism is installed at one end of the upper surface of the workbench, located between the first and second conveyor belts. A first support is installed at the end of the upper surface of the workbench away from the auxiliary mechanism, positioned above the first conveyor belt. A printing plate is installed at the lower end of the interior of the first support, parallel to the first conveyor belt vertically. A first cylinder is installed on the upper surface of the first support, its output end movably penetrating the interior of the first support and connected to the printing plate. The auxiliary mechanism includes a second support, which is mounted on the workbench... The upper surface of the workbench is provided with a second support located between the first and second conveyor belts. A connecting frame is movably installed at the lower interior of the second support, and a rotating shaft is movably installed at the lower interior of the connecting frame. A first pressing roller is installed through the outer side of the rotating shaft. A fixed rod is installed at one end of the workbench located between the first and second conveyor belts. A second pressing roller is movably installed through the outer side of the fixed rod. The upper end of the second pressing roller is horizontally parallel to the upper surface of the first and second conveyor belts. The second pressing roller and the first pressing roller overlap vertically. A second cylinder is installed at the upper end of the second support. The output end of the second cylinder movably passes through the interior of the second support and is connected to the connecting frame.
[0007] Preferably, the connecting frame has a through groove at its inner front end, and a motor is installed on the upper surface of the connecting frame near the groove. The output end of the motor and the shaft near the groove are respectively equipped with sprockets. A chain is movably installed inside the groove, and the upper and lower ends of the chain are respectively sleeved on the outside of the sprockets.
[0008] Preferably, the connecting frame is provided with a groove on the side near the second conveyor belt. Slider blocks are movably installed at the front and rear ends of the groove. Support blocks are installed at the ends of the sliders away from the connecting frame. Guide blocks are inserted and installed through the interior of the support blocks. Guide plates are installed at the lower ends of the guide blocks. The lower surfaces of the guide plates are in contact with the surfaces of the second conveyor belt.
[0009] Preferably, guide rods are installed at the upper and lower ends of the slide groove, and the rods of the guide rods are movably installed through the upper and lower ends of the slide block.
[0010] Preferably, a connecting groove is provided through the upper end of the slide groove, and threaded rods are respectively installed on the upper surface of the slider. The rod body of the threaded rod is movably installed through the interior of the connecting groove, and nuts are respectively installed on the upper end of the rod body by threads, and the nuts are in contact with the surface of the connecting frame.
[0011] Preferably, the end of the guide block away from the connecting frame is inclined, and the inclination angles are opposite.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) In this utility model, the cooperation of the first pressing roller and the second pressing roller in the auxiliary mechanism can squeeze and smooth materials of different thicknesses. Then, the second cylinder can drive the connecting frame to move up and down, thereby adjusting the distance between the first pressing roller and the second pressing roller to adapt to carton materials of various thicknesses. At the same time, the motor drives the rotating shaft and the first pressing roller to rotate through the sprocket and chain, forming a counter-rotation with the second pressing roller. During the transmission process, the material is continuously squeezed, which quickly eliminates wrinkles caused by uneven transmission tension, warping, or stacking pressure, ensuring that the material remains flat when entering the printing stage. This avoids problems such as blurry graphics and misregistration caused by insufficient contact between the printing plate and the material surface, and significantly improves the printing quality.
[0014] (2) In this utility model, the guide block and guide plate on one side of the connecting frame can effectively guide the material. The end of the guide block away from the connecting frame is set to the opposite inclination, which can guide the edge of the material during the material transmission process, so that the material is always kept in the middle of the transmission path. In addition, the distance between the two guide blocks can be adjusted by sliding the slider in the groove and fixing the threaded rod and nut to adapt to materials of different widths. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a wrinkle-resistant cardboard box packaging printing device according to the present invention.
[0016] Figure 2 This is a front view structural diagram of an anti-wrinkle cardboard box packaging printing device according to the present invention;
[0017] Figure 3 This is a side view of the anti-wrinkle cardboard packaging printing device of this utility model.
[0018] Figure 4 This utility model relates to a wrinkle-resistant cardboard box packaging printing device. Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0019] Figure 5 This utility model relates to a wrinkle-resistant cardboard box packaging printing device. Figure 3 Schematic diagram of the cross-sectional structure at point BB;
[0020] Figure 6 This utility model relates to a wrinkle-resistant cardboard box packaging printing device. Figure 4 Enlarged structural diagram at point C;
[0021] Figure 7 This utility model relates to a wrinkle-resistant cardboard box packaging printing device. Figure 5 Enlarged structural diagram at point D.
[0022] In the diagram: 1. Workbench; 2. First conveyor belt; 3. First support; 4. First cylinder; 5. Printing plate; 6. Auxiliary mechanism; 601. Second support; 602. Second cylinder; 603. Connecting frame; 604. Rotating shaft; 605. First pressing roller; 606. Second pressing roller; 607. Fixed rod; 608. Groove; 609. Sprocket; 610. Motor; 611. Chain; 612. Slide groove; 613. Slider; 614. Guide rod; 615. Connecting groove; 616. Threaded rod; 617. Support block; 618. Guide block; 619. Guide plate; 7. Second conveyor belt. Detailed Implementation
[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0024] like Figures 1 to 7As shown in the figure, this utility model embodiment proposes an anti-wrinkle cardboard packaging printing device, including a workbench 1. A first conveyor belt 2 and a second conveyor belt 7 are respectively installed at both ends of the workbench 1. An auxiliary mechanism 6 is installed at one end of the upper surface of the workbench 1, and the auxiliary mechanism 6 is located between the first conveyor belt 2 and the second conveyor belt 7. A first support 3 is installed at the end of the upper surface of the workbench 1 away from the auxiliary mechanism 6, and the first support 3 is located above the first conveyor belt 2. A printing plate 5 is installed at the lower end of the interior of the first support 3, and the printing plate 5 is parallel to the first conveyor belt 2 vertically. A first cylinder 4 is installed on the upper surface of the first support 3, and the output end of the first cylinder 4 movably passes through the interior of the first support 3 and is connected to the printing plate 5. The auxiliary mechanism 6 includes a second support 601, which is installed on the upper surface of the workbench 1. The second support 601 is located between the first conveyor belt 2 and the second conveyor belt 7. A connecting frame 603 is movably installed at the lower end of the second support 601. A rotating shaft 604 is movably installed at the lower end of the connecting frame 603. A first pressing roller 605 is installed through the outer side of the shaft of the rotating shaft 604. A fixed rod 607 is installed inside the worktable 1 at one end located between the first conveyor belt 2 and the second conveyor belt 7. A second pressing roller 606 is movably installed through the outer side of the fixed rod 607. The upper end of the second pressing roller 606 is horizontally parallel to the upper surface of the first conveyor belt 2 and the second conveyor belt 7. The second pressing roller 606 and the first pressing roller 605 overlap vertically. A second cylinder 602 is installed at the upper end of the second support 601. The output end of the second cylinder 602 movably passes through the interior of the second support 601 and is connected to the connecting frame 603.
[0025] like Figures 4 to 7As shown, in another embodiment of this utility model, a groove 608 is provided through the front end of the connecting frame 603. A motor 610 is installed on the upper surface of the connecting frame 603 near the end of the groove 608. A sprocket 609 is installed on the output end of the motor 610 and the shaft of the rotating shaft 604 near the end of the groove 608, respectively. A chain 611 is movably installed inside the groove 608. The upper and lower ends of the chain 611 are respectively sleeved on the outside of the sprocket 609. A slide groove 612 is provided on the side of the connecting frame 603 near the second transmission belt 7. A slider 613 is movably installed at the front and rear ends of the slide groove 612. A support block 617 is installed at the end of the slider 613 away from the connecting frame 603. A guide is respectively engaged and penetrated inside the support block 617. The lower end of the guide block 618 is equipped with a guide plate 619, the lower surface of which is in contact with the surface of the second conveyor belt 7. The upper and lower ends of the slide groove 612 are equipped with guide rods 614, the rods of which are movably installed through the upper and lower ends of the slide block 613. The upper end of the slide groove 612 is provided with a connecting groove 615. The upper surface of the slide block 613 is equipped with a threaded rod 616, the rod of which is movably installed through the connecting groove 615. The upper end of the threaded rod 616 is equipped with a nut by thread, and the nut is in contact with the surface of the connecting frame 603. The end of the guide block 618 away from the connecting frame 603 is inclined at opposite angles.
[0026] A groove 612 is opened on the side of the connecting frame 603 near the second conveyor belt 7. Guide rods 614 are installed at the upper and lower ends inside the groove 612, and sliders 613 are movably installed at the front and rear ends inside the groove 612, ensuring that the guide rods 614 pass through the sliders 613. A support block 617 is installed at the end of the sliders 613 away from the connecting frame 603. A guide block 618 is engaged and installed in the support block 617. A guide plate 619 is installed at the lower end of the guide block 618, and the lower surface of the guide plate 619 is in contact with the surface of the second conveyor belt 7. A connecting groove 615 is opened at the upper end of the groove 612. A threaded rod 616 is installed on the upper surface of the slider 613, passing through the connecting groove 615. A nut is installed at the upper end of the threaded rod 616 by thread, ensuring that the nut is in contact with and fixed to the surface of the connecting frame 603. This allows for adjustment of the spacing between the guide plates 619, and after adjustment, the guide plates 619 can be stably positioned, improving the stability during the guiding process.
[0027] The user places the cardboard material to be printed on the second conveyor belt 7, which transports the material towards the auxiliary mechanism 6. Simultaneously, the guide plate 619 guides the material, positioning it in the center. When the material moves between the first pressing roller 605 and the second pressing roller 606, the second cylinder 602 drives the connecting frame 603 to move up and down, adjusting the distance between the first and second pressing rollers to accommodate materials of different thicknesses. Simultaneously, the motor 610 drives the rotating shaft 604 and the first pressing roller 605 to rotate via the sprocket 609 and chain 611, creating a counter-rotating motion with the second pressing roller 606. This squeezes and smooths the material, eliminating wrinkles. The smoothed material then falls onto the first conveyor belt 2, which guides the material until it is precisely delivered below the printing plate 5. The first cylinder 4 drives the printing plate 5 to descend, completing the printing process. The printed material is then output via the first conveyor belt 2.
[0028] The working principle of this anti-wrinkle cardboard packaging printing device:
[0029] In use, the user first places the cardboard material to be printed on the second conveyor belt 7, which then transports the material towards the auxiliary mechanism 6. Simultaneously, the guide plate 619 guides the material, positioning it in the center. When the material moves between the first pressing roller 605 and the second pressing roller 606, the second cylinder 602 drives the connecting frame 603 to move up and down, adjusting the distance between the first and second pressing rollers 605 and 606 to accommodate materials of different thicknesses. Simultaneously, the motor 610 drives the rotating shaft 604 and the first pressing roller 605 to rotate via the sprocket 609 and chain 611, forming a counter-rotation with the second pressing roller 606. This squeezes and smooths the material, eliminating wrinkles. The smoothed material then falls onto the first conveyor belt 2, which guides the material until it is precisely delivered below the printing plate 5. The first cylinder 4 drives the printing plate 5 to descend, completing the printing process. The printed material is then output via the first conveyor belt 2.
[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A wrinkle-resistant cardboard packaging printing apparatus, comprising a workbench (1), characterized in that: The workbench (1) has a first conveyor belt (2) and a second conveyor belt (7) installed at its two ends. An auxiliary mechanism (6) is installed on one end of the upper surface of the workbench (1) and is located between the first conveyor belt (2) and the second conveyor belt (7). A first bracket (3) is installed on the upper surface of the workbench (1) away from the auxiliary mechanism (6) and is located at the upper end of the first conveyor belt (2). A printing plate (5) is installed at the lower end of the interior of the first bracket (3). The printing plate (5) is parallel to the first conveyor belt (2) vertically. A first cylinder (4) is installed on the upper surface of the first bracket (3). The output end of the first cylinder (4) moves through the interior of the first bracket (3) and is connected to the printing plate (5). The auxiliary mechanism (6) includes a second bracket (601). The second bracket (601) is installed on the upper surface of the workbench (1) and is located between the first conveyor belt (2) and the second conveyor belt (7). Between the second support (601) and the second conveyor belt (7), a connecting frame (603) is movably installed at the lower end of the second support (601), and a rotating shaft (604) is movably installed at the lower end of the connecting frame (603). A first pressing roller (605) is installed through the outer side of the shaft (604). A fixed rod (607) is installed inside the worktable (1) and at one end located between the first conveyor belt (2) and the second conveyor belt (7). A second pressing roller (606) is movably installed through the outer side of the fixed rod (607). The upper end of the second pressing roller (606) is horizontally parallel to the upper surface of the first conveyor belt (2) and the second conveyor belt (7). The second pressing roller (606) and the first pressing roller (605) overlap vertically. A second cylinder (602) is installed at the upper end of the second support (601). The output end of the second cylinder (602) movably passes through the interior of the second support (601) and is connected to the connecting frame (603).
2. The anti-wrinkle cardboard packaging printing device according to claim 1, characterized in that: The connecting frame (603) has a through groove (608) at its front end. A motor (610) is installed on the upper surface of the connecting frame (603) near the groove (608). A sprocket (609) is installed on the output end of the motor (610) and the shaft (604) near the groove (608). A chain (611) is movably installed inside the groove (608). The upper and lower ends of the chain (611) are respectively sleeved and installed on the outside of the sprocket (609).
3. The anti-wrinkle cardboard packaging printing device according to claim 1, characterized in that: The connecting frame (603) has a groove (612) on the side near the second conveyor belt (7). The sliding blocks (613) are movably installed at the front and rear ends of the groove (612). Support blocks (617) are installed at the ends of the sliding blocks (613) away from the connecting frame (603). Guide blocks (618) are inserted and installed inside the support blocks (617). Guide plates (619) are installed at the lower ends of the guide blocks (618). The lower surfaces of the guide plates (619) are in contact with the surfaces of the second conveyor belt (7).
4. The anti-wrinkle cardboard packaging printing device according to claim 3, characterized in that: Guide rods (614) are installed at the upper and lower ends of the inside of the slide (612), and the rods of the guide rods (614) are movably installed through the upper and lower ends of the inside of the slider (613).
5. The anti-wrinkle cardboard packaging printing apparatus according to claim 3, characterized in that: The upper end of the slide groove (612) is provided with a connecting groove (615). The upper surface of the slider (613) is respectively equipped with threaded rods (616). The rod body of the threaded rod (616) is movably installed inside the connecting groove (615). The upper end of the rod body of the threaded rod (616) is respectively threaded with a nut, and the nut is in contact with the surface of the connecting frame (603).
6. The anti-wrinkle cardboard packaging printing apparatus according to claim 3, characterized in that: The guide block (618) is inclined at one end away from the connecting frame (603), and the inclination angles are opposite.