Auxiliary die cutting device for carton printing slotting die cutting machine

Abstract

The utility model discloses an auxiliary die-cutting device for a carton printing slotting die-cutting machine, which comprises a mounting frame, a bottom roller is rotatably connected onto the mounting frame, a cutter groove is arranged on the bottom roller, the mounting frame is further rotatably connected with a cutter roller component, and the cutter roller component is in transmission connection with the bottom roller component; the knife roll assembly comprises a driving column fixedly connected with the mounting frame, the driving column is rotationally sleeved with a knife shell, a receding groove is formed in the knife shell, and a threaded rod is fixedly connected into the receding groove. According to the paper box clamping and conveying device, the knife roller assembly is arranged, the driving column is matched with the bottom roller, when a paper box is clamped and conveyed, on one hand, die cutting can be conducted on the two sides of the paper box through the annular cutting knife, on the other hand, transverse cutting can be conducted on the paper box through the slitting knife, and the driving column can drive the slitting knife to move in the direction of the bottom roller; it is ensured that the transverse cutting position is cut off, and waste is prevented from being connected with the carton.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box processing equipment technology, and in particular to an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine. Background Technology

[0002] A carton printing machine is a printing device that can print the required text, patterns, and other information onto the surface of a carton. It generally includes processes such as plate mounting, inking, printing, and paper feeding. Carton printing generally includes single printing, printing with slotting, die-cutting, gluing, and integrated production lines. Die-cutting can remove excess parts from the carton to complete the carton forming process.

[0003] In the auxiliary die-cutting device for a cardboard box printing and slotting die-cutting machine disclosed in Chinese utility model patent CN220031299U, a roller die-cutting method is used to die-cut the cardboard box, and the die-cutting blade is fixed by a pull block and a locking rod. However, when cutting cardboard boxes, due to the softness of the paper and the fact that some cardboard boxes are coated, waste material is still attached to the cardboard box after die-cutting, requiring manual separation. Therefore, we propose an auxiliary die-cutting device for a cardboard box printing and slotting die-cutting machine to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine includes a mounting frame, a bottom roller rotatably connected to the mounting frame, a knife groove being formed on the bottom roller, and a knife roller assembly rotatably connected to the mounting frame, the knife roller assembly being drivenly connected to the bottom roller assembly;

[0007] The cutter roller assembly includes a drive column fixedly connected to a mounting bracket. A cutter housing is rotatably sleeved on the drive column. A clearance groove is formed on the cutter housing. A threaded rod is fixedly connected in the clearance groove. A ring cutter is slidably connected to the cutter housing. A threaded sleeve matching the threaded rod is rotatably connected to the ring cutter. An adjusting sleeve is also threadedly connected to the threaded rod. A slidable cutter is slidably connected to the adjusting sleeve. A compression spring is fixedly connected to the slidable cutter, and the end of the compression spring away from the slidable cutter is fixedly connected to the adjusting sleeve.

[0008] Preferably, a drive motor is fixedly connected to the mounting frame, and the output end of the drive motor is fixedly connected to the bottom roller through a coupling. Gears are fixedly connected to both the bottom roller and the blade housing, and the two gears are connected in a transmission connection.

[0009] Preferably, the drive column includes a column body, and a protrusion is fixedly connected to the lower surface of the column body.

[0010] Preferably, the blade housing is further provided with a strip groove, and a limiting rod is fixedly connected in the strip groove, and the circumferential cutting blade is slidably connected to the limiting rod.

[0011] Preferably, the threaded rod is further threaded with a plurality of adjusting nuts, which are abutted against the threaded sleeve.

[0012] Preferably, the adjusting sleeve includes a housing, with limit nuts rotatably connected to both ends of the housing. The limit nuts are threadedly connected to the threaded rod. The housing abuts against the inner wall of the relief groove, and the sliding blade is slidably connected to the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, by setting up a cutter roller assembly, uses a drive column in conjunction with a bottom roller to clamp and feed the carton. On the one hand, it can use a ring cutter to die-cut both sides of the carton, and on the other hand, it can use a slitting cutter to cross-cut the carton. Furthermore, the drive column can drive the slitting cutter to move towards the bottom roller, ensuring that the cross-cutting position can be cut off and preventing waste material from connecting with the carton.

[0015] This invention, by setting a strip groove in conjunction with a limiting rod, can better fix the ring cutter. At the same time, by using a threaded sleeve and a threaded rod to connect the ring cutter, the user can flexibly adjust the position of the ring cutter according to actual needs. By setting an adjusting nut, the adjusting nut can be turned to abut against the threaded sleeve, thereby clamping the threaded sleeve and preventing the ring cutter from shifting during the operation of the auxiliary die-cutting device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the blade housing of an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the adjusting sleeve structure of an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine proposed in this utility model;

[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 5This is a schematic diagram of the drive column structure of an auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine proposed in this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Bottom roller; 3. Blade housing; 4. Threaded rod; 5. Ring cutter; 6. Threaded sleeve; 7. Adjusting sleeve; 71. Sleeve housing; 72. Limiting nut; 8. Slitting blade; 9. Compression spring; 10. Drive motor; 11. Gear; 12. Column; 13. Protrusion; 14. Limiting rod; 15. Adjusting nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 An auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine includes a mounting frame 1, a bottom roller 2 rotatably connected to the mounting frame 1, the bottom roller 2 having a cutting groove, and a cutting roller assembly rotatably connected to the mounting frame 1, the cutting roller assembly being drivenly connected to the bottom roller 2 assembly;

[0024] The cutter roller assembly includes a drive column fixedly connected to the mounting frame 1. A cutter housing 3 is rotatably sleeved on the drive column. A clearance groove is provided on the cutter housing 3. A threaded rod 4 is fixedly connected in the clearance groove. A ring cutter 5 is slidably connected to the cutter housing 3. A threaded sleeve 6 matching the threaded rod 4 is rotatably connected to the ring cutter 5. An adjusting sleeve 7 is also threadedly connected to the threaded rod 4. A sliding cutter 8 is slidably connected to the adjusting sleeve 7. A compression spring 9 is fixedly connected to the sliding cutter 8. The end of the compression spring 9 away from the sliding cutter 8 is fixedly connected to the adjusting sleeve 7.

[0025] In this design, when the cutter roller assembly is running, as the carton passes between the cutter housing 3 and the bottom roller 2, the ring cutter 5, in conjunction with the cutter groove, can perform die-cutting on both sides of the carton. After the slitting cutter 8 rotates to the position where it abuts against the carton, as the cutter housing 3 and the bottom roller 2 continue to rotate, when the slitting cutter 8 moves to a near-vertical position, the drive column abuts against the slitting cutter 8, causing the slitting cutter 8 to slide downwards. At this time, the slitting cutter 8 is inserted into the cutter groove, which can more effectively perform die-cutting on the carton, ensuring that the carton is cut off and preventing waste from being connected to the carton.

[0026] In addition, by setting a clearance groove in conjunction with the threaded rod 4, users can flexibly adjust the positions of the ring cutter 5 and the slitting cutter 8 according to actual needs when installing them, so as to meet the die-cutting requirements of cartons of different sizes and specifications, making the use more flexible.

[0027] Furthermore, a drive motor 10 is fixedly connected to the mounting frame 1, and the output end of the drive motor 10 is fixedly connected to the bottom roller 2 through a coupling. Gears 11 are fixedly connected to both the bottom roller 2 and the blade housing 3, and the two gears 11 are connected in a transmission connection.

[0028] In this design, the drive motor 10, in conjunction with the gear 11, drives the bottom roller 2 and the blade housing 3 to rotate synchronously, so that the die-cutting device can also perform the function of clamping and feeding, while the drive column does not rotate.

[0029] Furthermore, the drive column includes a column body 12, and a protrusion 13 is fixedly connected to the lower surface of the column body 12;

[0030] The column 12 is used to support the ridge 13 and the blade housing 3. The ridge 13 drives the slitting blade 8 to move downward when it rotates to a near-vertical position, so as to further cut the carton and ensure that the waste material is separated from the carton.

[0031] Furthermore, the blade housing 3 is also provided with a strip groove, and a limiting rod 14 is fixedly connected in the strip groove, and the ring cutting blade 5 is slidably connected to the limiting rod 14;

[0032] The strip groove is designed in conjunction with the limiting rod 14 to provide auxiliary support for the ring cutter 5, thereby improving the stability of the ring cutter 5 and preventing displacement or tilting of the ring cutter 5 during the die-cutting process.

[0033] Furthermore, the threaded rod 4 is also threadedly connected with a plurality of adjusting nuts 15, which are abutted against the threaded sleeve 6;

[0034] Relying solely on the threaded sleeve 6 to fix the ring cutter 5 can easily cause displacement of the ring cutter 5 due to equipment vibration during operation, resulting in processing errors. Therefore, an adjusting nut 15 is provided. The adjusting nut 15 abuts against the threaded sleeve 6, causing the internal thread of the threaded sleeve 6 to abut against the external thread of the threaded rod 4, increasing the friction. During use, the threaded sleeve 6 cannot rotate, ensuring the fixing effect of the ring cutter 5, while also not increasing the difficulty for the user to adjust the position of the ring cutter 5.

[0035] Furthermore, the adjusting sleeve 7 includes a housing 71, with limiting nuts 72 rotatably connected to both ends of the housing 71. The limiting nuts 72 are threadedly connected to the threaded rod 4. The housing 71 is abutted against the inner wall of the relief groove. The slitting blade 8 is slidably connected to the housing 71.

[0036] The sleeve 71, in conjunction with the limiting nut 72, allows the position of the adjusting sleeve 7 to be adjusted, thereby achieving the purpose of adjusting the cutting position. At the same time, the sleeve 71 abuts against the inner wall of the relief groove, ensuring that the sleeve 71 will not rotate along the threaded rod 4. It should be noted that the adjusting nut 15 can also abut against the limiting nut 72 to prevent the position of the sleeve 71 from shifting.

[0037] 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 auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine, comprising a mounting frame (1), characterized in that, The mounting frame (1) is rotatably connected to a bottom roller (2), and the bottom roller (2) is provided with a knife groove. The mounting frame (1) is also rotatably connected to a knife roller assembly, and the knife roller assembly is connected to the bottom roller (2) assembly in a transmission connection. The cutter roller assembly includes a drive column fixedly connected to the mounting bracket (1), a cutter housing (3) is rotatably sleeved on the drive column, a clearance groove is provided on the cutter housing (3), a threaded rod (4) is fixedly connected in the clearance groove, a ring cutter (5) is slidably connected on the cutter housing (3), and a threaded sleeve (6) matching the threaded rod (4) is rotatably connected on the ring cutter (5), an adjusting sleeve (7) is also threadedly connected on the threaded rod (4), a sliding cutter (8) is slidably connected on the adjusting sleeve (7), a compression spring (9) is fixedly connected on the sliding cutter (8), and the end of the compression spring (9) away from the sliding cutter (8) is fixedly connected to the adjusting sleeve (7).

2. The auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine according to claim 1, characterized in that, A drive motor (10) is fixedly connected to the mounting bracket (1). The output end of the drive motor (10) is fixedly connected to the bottom roller (2) through a coupling. Gears (11) are fixedly connected to both the bottom roller (2) and the blade housing (3), and the two gears (11) are connected in a transmission.

3. The auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine according to claim 1, characterized in that, The drive column includes a column body (12), and a protrusion (13) is fixedly connected to the lower surface of the column body (12).

4. The auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine according to claim 1, characterized in that, The blade housing (3) is also provided with a strip groove, and a limiting rod (14) is fixedly connected in the strip groove. The ring cutter (5) is slidably connected to the limiting rod (14).

5. The auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine according to claim 1, characterized in that, The threaded rod (4) is also threaded with a plurality of adjusting nuts (15), which are abutted against the threaded sleeve (6).

6. The auxiliary die-cutting device for a cardboard box printing slotting die-cutting machine according to claim 1, characterized in that, The adjusting sleeve (7) includes a sleeve shell (71), with limit nuts (72) rotatably connected to both ends of the sleeve shell (71). The limit nuts (72) are threadedly connected to the threaded rod (4). The sleeve shell (71) is abutted against the inner wall of the relief groove. The slitting blade (8) is slidably connected to the sleeve shell (71).

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