Automatic slotting device for printing paperboard

By designing a combined structure of movable plate, inclined slider and connecting cylinder, and utilizing the cooperation of gears and pins, the blades in the automatic slotting device for printed paperboard are quickly disassembled and installed, solving the problem of cumbersome blade fixing in the existing technology and improving operating efficiency.

CN224224638UActive Publication Date: 2026-05-12JIANGSU YUEDA PACKAGE & TRANSPORTATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YUEDA PACKAGE & TRANSPORTATION CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing automatic slotting devices for printed paperboard, the blades are fixed with multiple screws, making the disassembly and installation process cumbersome, time-consuming, and labor-intensive.

Method used

An automatic grooving device was designed. Through the combination of a movable plate, an inclined slider and a connecting cylinder, the blade can be quickly disassembled and installed. The blade replacement process is simplified by the cooperation of gears and pins.

Benefits of technology

It enables quick disassembly and installation of the blades, solving the problem of cumbersome disassembly and installation processes and improving operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic slotting device for a printing paperboard, which belongs to the technical field of paperboard slotting, and comprises a bottom plate and a transmission mechanism, the top surface of the bottom plate is provided with a plurality of cutting grooves, the top surface of the bottom plate is also rotatably connected with a plurality of connecting seats, and the connecting seats are connected with the transmission mechanism. Blades are arranged on one sides of the multiple connecting bases, multiple connecting holes are formed in the outer sides of the blades, mounting grooves are formed in the connecting bases, movable plates are slidably connected to the inner sides of the mounting grooves, multiple inclined sliding grooves are formed in the outer sides of the movable plates, and inclined sliding blocks are slidably connected to the inner sides of the inclined sliding grooves; a tooth groove is formed in the top face of the movable plate, and a plurality of connecting cylinders are fixed to the side, close to the blade, of the connecting base. According to the utility model, the blade can be quickly dismounted and mounted, and the problems that the dismounting and mounting processes are tedious, time-consuming and labor-consuming because the blade is fixed by adopting a plurality of screws are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of cardboard slotting technology, and more specifically, relates to an automatic slotting device for printing cardboard. Background Technology

[0002] When making packaging such as cardboard boxes, cardboard needs to be folded into specific shapes. The slotting device cuts precise slots in the cardboard, allowing it to be folded accurately along the slot lines to form regular edges and shapes, which facilitates subsequent packaging and use. Existing automatic slotting devices for printed cardboard have blades that are prone to wear after prolonged use and need to be replaced regularly. Since the blades are fixed with multiple screws, the disassembly and installation process is cumbersome, time-consuming and labor-intensive. Therefore, an automatic slotting device for printed cardboard is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic slotting device for printed paperboard, which can quickly disassemble and install blades, thereby solving the problem mentioned in the background art that the disassembly and installation process is cumbersome, time-consuming, and labor-intensive due to the use of multiple screws to fix the blades.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic slotting device for printing paperboard, comprising a base plate and a transmission mechanism. The top surface of the base plate has multiple cutting slots, and multiple connecting seats are rotatably connected to the top surface of the base plate. Each connecting seat has a blade on one side, and multiple connecting holes are formed on the outer side of each blade. An installation groove is formed inside each connecting seat, and a movable plate is slidably connected to the inner side of the installation groove. Multiple oblique sliding grooves are formed on the outer side of the movable plate, and multiple oblique sliding grooves are slidably connected to the inner side of each oblique sliding groove. The inclined slider has a toothed groove on the top surface of the movable plate. Multiple connecting cylinders are fixed to the side of the connecting seat near the blade. Multiple movable grooves are opened on the outer side of the connecting cylinders. A locking block is slidably connected to the inner side of each movable groove. A top rod is fixed to the inner side of the connecting cylinder. A groove is also opened on the inner side of the connecting cylinder. A connecting piece is also slidably connected to the inner side of the connecting cylinder. A gear is rotatably connected to the top surface of the connecting seat. An operating rod is fixed to the outer side of the gear. A support is also fixed to the top surface of the connecting seat. A pin is inserted between the support and the operating rod.

[0005] As a preferred embodiment of this invention, the position of the blade corresponds to the position of the cutting groove.

[0006] As a preferred embodiment of this utility model, one end of the connecting cylinder is inserted into the inner side of the connecting hole.

[0007] As a preferred embodiment of this utility model, the top rod has a frustum-shaped structure, and the outer side of the top rod slides in contact with the outer side of the locking block.

[0008] As a preferred embodiment of this utility model, the groove has a frustum-shaped structure, and the inner side of the groove is in sliding contact with the outer side of the top rod.

[0009] As a preferred embodiment of this invention, the outer side of the gear meshes with the inner side of the tooth groove.

[0010] As a preferred embodiment of this utility model, one end of the connector is fixedly connected to the outside of the inclined slider, and the other end of the connector is fixedly connected to one end of a plurality of locking blocks.

[0011] This utility model provides an automatic slotting device for printing paperboard, which has the following advantages:

[0012] 1. This automatic slotting device for printed paperboard can quickly disassemble and install blades, solving the problem that the disassembly and installation process is cumbersome, time-consuming and labor-intensive because the blades are fixed with multiple screws.

[0013] 2. This automatic slotting device for printed paperboard has a reasonable and compact structure and good performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic slotting device for printing paperboard according to this utility model.

[0015] Figure 2 This is a cross-sectional and structural diagram of the automatic slotting device for printing paperboard according to the present invention.

[0016] Figure 3 This utility model relates to an automatic slotting device for printing paperboard. Figure 2 Enlarged diagram of point A in the diagram.

[0017] Figure 4 This utility model relates to an automatic slotting device for printing paperboard. Figure 2 Enlarged diagram of point B in the image.

[0018] Figure 5 This utility model relates to an automatic slotting device for printing paperboard. Figure 3 Enlarged diagram of point C in the image.

[0019] In the diagram: 1. Base plate; 2. Transmission mechanism; 3. Cutting groove; 4. Connecting seat; 5. Blade; 6. Connecting hole; 7. Mounting groove; 8. Movable plate; 9. Angled slide; 10. Angled slider; 11. Gear groove; 12. Connecting cylinder; 13. Movable groove; 14. Locking block; 15. Top rod; 16. Groove; 17. Connecting piece; 18. Gear; 19. Operating lever; 20. Support; 21. Pin. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1 to 5This utility model provides a technical solution: an automatic slotting device for printed cardboard, comprising a base plate 1 and a transmission mechanism 2. The top surface of the base plate 1 has multiple cutting grooves 3. Multiple connecting seats 4 are rotatably connected to the top surface of the base plate 1. Each connecting seat 4 has a blade 5 on one side. Multiple connecting holes 6 are formed on the outer side of the blades 5. An installation groove 7 is formed inside the connecting seat 4. A movable plate 8 is slidably connected to the inner side of the installation groove 7. Multiple oblique sliding grooves 9 are formed on the outer side of the movable plate 8. An oblique slider 10 is slidably connected to the inner side of the oblique sliding grooves 9. A toothed groove 11 is formed on the top surface of the movable plate 8. Multiple connecting cylinders 12 are fixed to the side of the connecting seat 4 near the blades 5. Multiple movable grooves 13 are formed on the outer side of the connecting cylinders 12. A locking block 14 is slidably connected to the inner side of each movable groove 13. A top rod 15 is fixed to the inner side of the connecting cylinder 12. The inner side of the connecting cylinder 12 is also provided with a groove 16, and the inner side of the connecting cylinder 12 is also slidably connected with a connector 17. The top surface of the connecting seat 4 is rotatably connected with a gear 18, and the outer side of the gear 18 is fixed with an operating rod 19. The top surface of the connecting seat 4 is also fixed with a support 20, and a pin 21 is inserted between the support 20 and the operating rod 19. The position of the blade 5 corresponds to the position of the cutting groove 3. One end of the connecting cylinder 12 is inserted into the inner side of the connecting hole 6. The push rod 15 has a frustum structure, and the outer side of the push rod 15 is in sliding contact with the outer side of the locking block 14. The groove 16 has a frustum structure, and the inner side of the groove 16 is in sliding contact with the outer side of the push rod 15. The outer side of the gear 18 is meshed with the inner side of the tooth groove 11. One end of the connector 17 is fixedly connected to the outer side of the inclined slider 10, and the other end of the connector 17 is fixedly connected to one end of multiple locking blocks 14.

[0024] When the blade 5 needs to be replaced, remove the pin 21 and drive the gear 18 to rotate via the operating lever 19. The gear 18 engages with the toothed groove 11 on the movable plate 8, thereby moving the movable plate 8. The inclined slide groove 9 on the movable plate 8 drives the inclined slider 10 to move perpendicular to the movable plate 8. The inclined slider 10 pushes the locking block 14 to move via the connecting cylinder 12, causing the locking block 14 to disengage from the push rod 15 and insert into the groove 16. Since the groove 16 has a frustum-shaped structure, as the locking block 14 gradually retracts into the movable groove 13, the space gradually decreases, causing the multiple push rods 15 to gradually converge towards the center, thus allowing the locking block 14 to retract into the movable groove 13, allowing the blade 5 to be quickly removed. When installing the blade 5, align the connecting hole 6 on the blade 5 with the connecting cylinder 12. After insertion, push the operating lever 19 back to its original position and fix it with the pin 21. During this process, the operating lever 19 drives the movable plate 8 to move back through the gear 18. The inclined slide groove 9 on the movable plate 8 drives the inclined slider 10 to move perpendicular to the movable plate 8 and return to its original position. The inclined slider 10 pulls the locking block 14 back through the connecting cylinder 12, so that the locking block 14 disengages from the groove 16 and contacts the top rod 15. The top rod 15 pushes the locking block 14 outward, so that the locking block 14 extends out of the movable groove 13 and abuts against the outside of the blade 5, thereby fixing the position of the blade 5. Through the above process, the blade 5 can be quickly disassembled and installed, solving the problem that the disassembly and installation process is cumbersome, time-consuming and labor-intensive because the blade is fixed with multiple screws.

[0025] The specific usage and function of this embodiment: When the blade 5 needs to be replaced, the pin 21 is removed, and the gear 18 is rotated by the operating rod 19. The gear 18 meshes with the tooth groove 11 on the movable plate 8, thereby moving the movable plate 8. The inclined slide groove 9 on the movable plate 8 drives the inclined slider 10 to move perpendicular to the movable plate 8. The inclined slider 10 pushes the locking block 14 to move through the connecting cylinder 12, so that the locking block 14 disengages from the top rod 15 and inserts into the groove 16. Since the groove 16 has a frustum-shaped structure, as the locking block 14 gradually retracts into the movable groove 13, the space gradually becomes smaller, so that the multiple top rods 15 gradually converge towards the middle, thereby allowing the locking block 14 to retract into the movable groove 13, and the blade 5 can be quickly removed.

[0026] When installing the blade 5, align the connecting hole 6 on the blade 5 with the connecting cylinder 12 and insert it. Then, push the operating lever 19 back to its original position and fix it with the pin 21. During this process, the operating lever 19 drives the movable plate 8 to move back through the gear 18. The inclined slide groove 9 on the movable plate 8 drives the inclined slider 10 to move perpendicular to the movable plate 8 and return to its original position. The inclined slider 10 pulls the locking block 14 back through the connecting cylinder 12, so that the locking block 14 disengages from the groove 16 and contacts the top rod 15. The top rod 15 pushes the locking block 14 outward, so that the locking block 14 extends out of the movable groove 13 and abuts against the outside of the blade 5, thereby fixing the position of the blade 5.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic slotting device for printing paperboard, comprising a base plate (1) and a transmission mechanism (2), characterized in that: The top surface of the base plate (1) is provided with multiple cutting grooves (3). The top surface of the base plate (1) is also rotatably connected with multiple connecting seats (4). Each of the multiple connecting seats (4) is provided with a blade (5) on one side. The outer side of the blade (5) is provided with multiple connecting holes (6). The inside of the connecting seat (4) is provided with an installation groove (7). The inner side of the installation groove (7) is slidably connected with a movable plate (8). The outer side of the movable plate (8) is provided with multiple oblique sliding grooves (9). The inner side of the multiple oblique sliding grooves (9) is slidably connected with an oblique slider (10). The top surface of the movable plate (8) is provided with a toothed groove (11). The connecting seat (4) is fixed on the side near the blade (5). There are multiple connecting cylinders (12), and multiple movable grooves (13) are provided on the outer side of the connecting cylinders (12). The inner side of each of the multiple movable grooves (13) is slidably connected to a locking block (14). A top rod (15) is fixed on the inner side of the connecting cylinder (12). A groove (16) is also provided on the inner side of the connecting cylinder (12). A connector (17) is also slidably connected on the inner side of the connecting cylinder (12). A gear (18) is rotatably connected to the top surface of the connecting seat (4). An operating rod (19) is fixed on the outer side of the gear (18). A support (20) is also fixed on the top surface of the connecting seat (4). A pin (21) is inserted between the support (20) and the operating rod (19).

2. The automatic slotting device for printing paperboard according to claim 1, characterized in that: The position of the blade (5) corresponds to the position of the cutting groove (3).

3. The automatic slotting device for printing paperboard according to claim 1, characterized in that: One end of the connecting cylinder (12) is inserted into the inner side of the connecting hole (6).

4. The automatic slotting device for printing paperboard according to claim 1, characterized in that: The top rod (15) has a frustum-shaped structure, and the outer side of the top rod (15) slides in contact with the outer side of the locking block (14).

5. The automatic slotting device for printing paperboard according to claim 1, characterized in that: The groove (16) has a frustum-shaped structure, and the inner side of the groove (16) slides in contact with the outer side of the top rod (15).

6. The automatic slotting device for printing paperboard according to claim 1, characterized in that: The outer side of the gear (18) meshes with the inner side of the tooth groove (11).

7. The automatic slotting device for printing paperboard according to claim 1, characterized in that: One end of the connector (17) is fixedly connected to the outside of the inclined slider (10), and the other end of the connector (17) is fixedly connected to one end of a plurality of locking blocks (14).