Electric knife roll structure of packaging, printing and splitting machine

Abstract

The invention provides an electric knife roll structure of a packaging, printing and splitting machine, which comprises a knife roll and further comprises a frame body, a lifting mechanism is mounted on each of two sides of the frame body, the knife roll is rotatably mounted between the two lifting mechanisms, and one end of the knife roll is connected with a rotating mechanism; a plurality of annular cutters are installed on the cutter roller in the length direction at equal intervals. The dust collection cover is arranged on the top side of the knife roll, and an elastic telescopic pressing piece is arranged between the dust collection cover and the frame body, so that the bottom of the dust collection cover is attached to the top side face of the knife roll; and the knife grinding mechanism is used for grinding the annular knife, and the knife grinding mechanism is arranged in the dust collection cover. And under the condition that the knife roll is adjusted to different heights and materials with different thicknesses are slit, the top groove of the knife roll is always attached to the bottom of the dust collection cover, and the function of cleaning the knife roll in real time is achieved.

Description

Technical Field

[0001] The invention relates to the field of packaging printing and slitting, in particular to an electric knife roller structure of a packaging printing and slitting machine. Background Art

[0002] The packaging and printing slitting machine is a mechanical equipment widely used in the packaging and printing industry. It uses an electric knife roller to slit wide paper, film, non-woven fabrics and other materials into multiple narrow materials to meet different packaging and printing needs.

[0003] The knife roller is used to cut materials by means of multiple equally spaced annular knives. During the packaging printing and slitting process, some debris will inevitably adhere to the knife roller. If it is not cleaned in time, it will continue to accumulate as the knife roller rotates, which will affect the slitting quality. Summary of the invention

[0004] The invention provides an electric knife roller structure for a packaging printing and slitting machine in order to solve the technical problem that the traditional knife roller lacks cleaning and is easy to be attached with debris.

[0005] The present invention solves the above technical problems through the following technical solutions: The present invention provides an electric knife roller structure of a packaging printing and slitting machine, comprising a knife roller and also comprising: a frame, wherein a lifting mechanism is installed on both sides of the frame, the knife roller is rotatably installed between the two lifting mechanisms, and one end of the knife roller is connected to a rotating mechanism; the knife roller is provided with a plurality of annular knives at equal intervals along the length direction; a dust hood, wherein the dust hood is arranged on the top side of the knife roller, and an elastic retractable pressing piece is arranged between the dust hood and the frame, so that the bottom of the dust hood is fitted to the top side surface of the knife roller; and a knife sharpening mechanism, wherein the knife sharpening mechanism is used for sharpening the annular knife, and the knife sharpening mechanism is arranged inside the dust hood.

[0006] In this technical solution, when the knife roller is adjusted to different heights to cut materials of different thicknesses, the top groove of the knife roller always fits with the bottom of the dust hood, thereby achieving the effect of real-time cleaning of the knife roller.

[0007] Preferably, it also includes a driving mechanism, which includes a fixed seat, a dual-axis motor, a first connecting shaft, a first bevel gear, a second bevel gear and a second connecting shaft; the number of the fixed seats is two, and the two fixed seats are fixedly installed under the machine table of the packaging printing and slitting machine, the top surface of the machine table is provided with a plurality of strip grooves, and the plurality of strip grooves are respectively aligned with the bottoms of the plurality of annular knives, the dual-axis motor is fixedly installed between the two fixed seats, and the first connecting shaft is rotatably installed in the two fixed seats, the output shaft of the dual-axis motor is fixedly connected to the end of the first connecting shaft, the end of the first connecting shaft away from the dual-axis motor is fixedly connected to the first bevel gear, the first bevel gear is meshingly connected to the second bevel gear, and the top of the second bevel gear is fixedly connected to the second connecting shaft; the second connecting shaft is rotatably connected to the machine table.

[0008] In this technical solution, the driving mechanism provides driving force for the two lifting mechanisms.

[0009] Preferably, the lifting mechanism includes an end frame, a screw, a movable nut and a guide block; the end frame is fixedly installed on the side wall of the frame body, the frame body is fixedly installed on the top of the machine platform, the screw is rotatably connected to the end frame, the bottom end of the screw is fixedly connected to the top end of the second connecting shaft, the movable nut is threadedly connected to the screw, one side of the movable nut is fixedly connected to a guide block, a vertical groove is opened on the side wall of the frame body, and the guide block is slidably connected to the vertical groove.

[0010] In the technical solution, the lifting mechanism is driven by the driving mechanism to drive the knife roller to move up and down to adjust the height.

[0011] Preferably, the guide block is fixedly connected to the side frame, and the knife roller is rotatably connected to the side frame; the rotating mechanism includes a single-axis motor, a third bevel gear and a fourth bevel gear; the single-axis motor is fixedly installed on the side wall of the side frame, the output shaft end of the single-axis motor is fixedly connected to the third bevel gear, the third bevel gear is meshingly connected to the fourth bevel gear, and the fourth bevel gear is fixedly sleeved to one end of the knife roller.

[0012] In the technical solution, a rotating mechanism is used to drive the knife roller to rotate.

[0013] Preferably, an industrial vacuum cleaner is also included, the dust inlet end of the industrial vacuum cleaner is connected to a dust suction pipe, the end of the dust suction pipe away from the industrial vacuum cleaner is connected to a plurality of connecting pipes, the plurality of connecting pipes are fixedly installed to the top of the frame at equal intervals, and the connecting pipes pass through the top of the frame, the bottom end of the connecting pipe is connected to a first corrugated hose, and the bottom end of the first corrugated hose is fixedly connected to the top of the dust hood.

[0014] In the technical solution, the industrial vacuum cleaner provides negative pressure for the dust hood, so that the dust hood can perform dust collection operations.

[0015] Preferably, the number of the elastic telescopic pressure pieces is two, and the two elastic telescopic pressure pieces are respectively installed on both sides of the top of the dust hood, and the elastic telescopic pressure piece includes a guide rod and a first spring; the bottom end of the guide rod is fixedly connected to the top surface of the dust hood, and the guide rod is connected to the first guide hole opened on the top of the frame, the first spring is sleeved on the guide rod, the top end of the first spring is fixedly connected to the top inner wall of the frame, and the bottom end of the first spring is fixedly connected to the top of the dust hood.

[0016] In the technical solution, the elastic telescopic pressing piece enables the dust cover to be always located on the top side of the knife roller, and the knife roller is located at different heights and can always be cleaned.

[0017] Preferably, an opening is provided at the bottom of the dust hood, and a plurality of equally spaced embedding grooves are provided at the bottom of the dust hood, and the top of the annular knife is embedded in the embedding groove; a plurality of ball bearings are also provided at the bottom of the dust hood, and the ball bearings are in contact with the cylindrical surface of the knife roller.

[0018] In the technical solution, the embedded groove is used for the entry of the annular knife so that the dust hood adapts to the knife roller; and the ball is used to make the dust hood and the knife roller rotate to reduce wear.

[0019] Preferably, a concave hole is provided at the bottom of the dust hood, a bottom retaining ring is fixedly installed at the bottom of the concave hole, a circular cavity with a bottom opening is formed between the top surface of the bottom retaining ring and the wall of the concave hole, the ball is arranged in the circular cavity, and the bottom of the ball passes through the bottom opening of the circular cavity.

[0020] In the technical solution, the circular cavity surrounded by the concave hole and the bottom retaining ring provides a mounting position for the ball.

[0021] Preferably, the sharpening mechanism comprises a carrier bar, a plurality of sharpeners are fixedly mounted at equal intervals on the bottom of the carrier bar, a knife entry is arranged at the bottom of the sharpener, and the inlet grooves of the plurality of sharpeners are respectively aligned with the tops of the plurality of annular knives, and a plurality of through grooves are opened on the carrier bar.

[0022] In the technical solution, the top blade of the annular knife is placed at the knife entrance, and is used for grinding the annular knife through the rotation of the knife roller.

[0023] Preferably, a second corrugated hose is fixedly installed between the top inner wall of the frame and the top surface of the dust hood, a vertical rod is arranged in the bottom end of the second corrugated hose, the vertical rod is cooperatively connected with a second guide hole opened on the top of the dust hood, and the bottom end of the vertical rod is fixedly connected to the top surface of the carrier strip, a second spring is sleeved on the vertical rod, the top end of the second spring is fixedly connected to the rod surface of the vertical rod, and the bottom end of the second spring is fixedly connected to the top inner wall of the dust hood.

[0024] In this technical solution, the knife sharpening mechanism is installed by means of a vertical rod and a second spring.

[0025] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0026] The positive and progressive effects of the present invention are: The electric knife roller structure of the packaging printing and slitting machine proposed above can clean the surface of the knife roller in real time and remove debris and dirt by means of a dust suction hood arranged on the top side of the knife roller during the self-rotation of the knife roller to slit the material, thereby avoiding affecting the subsequent use; further, an elastic telescopic pressing piece is arranged above the dust suction hood, and during the use of the knife roller, the elastic downward pressure provided by the elastic telescopic pressing piece and the telescopic design can be used to adjust the knife roller to different heights for slitting materials of different thicknesses, so that the bottom opening of the dust suction hood is always in contact with the top side of the knife roller, thereby achieving a suitable position for the knife roller. The roller is adjusted to cleaning operations under different heights; further, a sharpening mechanism is arranged inside the dust hood, and when the knife roller is in a low position and is cutting materials, the sharpener of the sharpening mechanism is separated from the annular knife, and when the knife roller needs to be maintained, the knife roller is adjusted to a high position, and the vertical rod is fitted with the inner wall of the top of the frame to block it, and the sharpener does not continue to move upward, while the dust hood and the knife roller continue to move upward together, so that the top side of the annular knife can enter the sharpener, and the sharpening operation is realized through the self-rotation of the knife roller. The above design provides sharpening maintenance for the annular knife to avoid the reduction of blade sharpness after long-term slitting use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0028] Figure 2 It is a front view of the whole invention.

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the structure with the A part in the middle enlarged.

[0030] Figure 4 It is a schematic diagram of the structure of the installation and rotation mechanism of the knife roller of the present invention.

[0031] Figure 5 It is a schematic structural diagram of the top side and the bottom side of the dust hood of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure of the interior of the dust hood and the interior of the second corrugated hose of the present invention.

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the structure with the B part enlarged.

[0034] Description of Reference Numerals 1. frame; 101. vertical slot; 102. first guide hole; 2. Industrial vacuum cleaner; 3. Knife roller; 301. Annular knife; 4. Driving mechanism; 401. Fixed seat; 402. Dual-axis motor; 403. First connecting shaft; 404. First bevel gear; 405. Second bevel gear; 406. Second connecting shaft; 5. Lifting mechanism; 501. End frame; 502. Screw rod; 503. Movable nut; 504. Guide block; 6. Vacuum pipe; 601. Take over; 7. Dust cover; 701. Embedded groove; 702. Concave hole; 703. Second guide hole; 8. The first corrugated hose; 9. Guide rod; 10. First spring; 11. Second corrugated hose; 12. Rotating mechanism; 1201. Single-axis motor; 1202. Third bevel gear; 1203. Fourth bevel gear; 13. Machine; 1301. Strip groove; 14. Ball bearing; 15. Bottom retaining ring; 16. Side frame; 17. Knife sharpener; 18. Carrying strip; 1801. Through slot; 19. Vertical pole; 20. Second spring. DETAILED DESCRIPTION

[0035] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0036] like Figure 1-7 As shown, the electric knife roller structure of the packaging printing and slitting machine includes a knife roller 3, and also includes: a frame 1, a lifting mechanism 5 is installed on both sides of the frame 1, the knife roller 3 is rotatably installed between the two lifting mechanisms 5, and one end of the knife roller 3 is connected to a rotating mechanism 12; the knife roller 3 is installed with multiple annular knives 301 at equal intervals along the length direction; a dust hood 7, the dust hood 7 is arranged on the top side of the knife roller 3, and an elastic telescopic pressing piece is arranged between the dust hood 7 and the frame 1, so that the bottom of the dust hood 7 is attached to the top side of the knife roller 3; a knife sharpening mechanism, the knife sharpening mechanism is used for grinding the annular knife 301, and the knife sharpening mechanism is arranged inside the dust hood 7.

[0037] like Figure 1-2As shown, as a specific technical solution, it also includes a driving mechanism 4, which includes a fixed seat 401, a dual-axis motor 402, a first connecting shaft 403, a first bevel gear 404, a second bevel gear 405 and a second connecting shaft 406; the number of the fixed seats 401 is two, and the two fixed seats 401 are fixedly installed below the machine table 13 of the packaging printing and slitting machine, and the top surface of the machine table 13 is provided with a plurality of strip grooves 1301, and the plurality of strip grooves 1301 are respectively aligned with the bottom of the plurality of annular knives 301, and the The dual-axis motor 402 is fixedly installed between the two fixed seats 401, and the first connecting shaft 403 is rotatably installed in the two fixed seats 401. The output shaft of the dual-axis motor 402 is fixedly connected to the end of the first connecting shaft 403, and the end of the first connecting shaft 403 away from the dual-axis motor 402 is fixedly connected to the first bevel gear 404, the first bevel gear 404 is meshed with the second bevel gear 405, and the top of the second bevel gear 405 is fixedly connected to the second connecting shaft 406; the second connecting shaft 406 is rotatably connected to the machine table 13.

[0038] The lifting mechanism 5 includes an end frame 501, a screw rod 502, a movable nut 503 and a guide block 504; the end frame 501 is fixedly installed on the side wall of the frame body 1, and the frame body 1 is fixedly installed above the machine platform 13. The screw rod 502 is rotatably connected to the end frame 501, and the bottom end of the screw rod 502 is fixedly connected to the top end of the second connecting shaft 406. The movable nut 503 is threadedly connected to the screw rod 502, and a guide block 504 is fixedly connected to one side of the movable nut 503. A vertical groove 101 is opened on the side wall of the frame body 1, and the guide block 504 is slidably connected to the vertical groove 101.

[0039] The driving mechanism 4 provides drive for the lifting mechanism 5 to achieve lifting and lowering adjustment of the knife roller 3.

[0040] The purpose of the lifting and lowering adjustment of the knife roller 3 is to adjust the distance between the knife roller 3 and the machine table 13 to meet the needs of placing materials of different thicknesses between the two and realize the cutting requirements of materials of different thicknesses; it should be noted that the thickness of the material to be cut should be smaller than the difference between the inner and outer diameters of the annular knife 301.

[0041] At the same time, when the surface of the machine table 13 is manually cleaned and the material is replaced, the knife roller 3 is adjusted to a high position through lifting and lowering adjustment, so as to facilitate manual operation of the top surface of the machine table 13.

[0042] The specific steps of lifting and lowering adjustment are as follows: the first connecting shaft 403 is driven to rotate by the dual-axis motor 402, so that the first bevel gear 404 is rotated, and the second connecting shaft 406 is rotated through the meshing transmission of the first bevel gear 404 and the second bevel gear 405; the second connecting shaft 406 drives the screw rod 502 to rotate, and the screw rod 502 and the movable nut 503 are threaded, and the lifting and lowering adjustment is realized by cooperating with the guide block 504 and the guidance of the vertical slot 101.

[0043] like Figure 4 As shown, as a specific technical solution, the guide block 504 is fixedly connected to the side frame 16, and the knife roller 3 is rotatably connected to the side frame 16; the rotating mechanism 12 includes a single-axis motor 1201, a third bevel gear 1202 and a fourth bevel gear 1203; the single-axis motor 1201 is fixedly installed on the side wall of the side frame 16, and the output shaft end of the single-axis motor 1201 is fixedly connected to the third bevel gear 1202, and the third bevel gear 1202 is meshedly connected to the fourth bevel gear 1203, and the fourth bevel gear 1203 is fixedly sleeved on one end of the knife roller 3.

[0044] When slitting is performed, the material on the machine table 13 is pushed by the material pushing mechanism on the packaging printing slitting machine, and passes through the bottom of the knife roller 3, and the knife roller 3 is driven by the rotating mechanism 12 to rotate and perform cutting.

[0045] The specific operation of the rotating mechanism 12 is as follows: the third bevel gear 1202 is driven to rotate by the single-axis motor 1201, and the knife roller 3 is caused to rotate by the meshing transmission between the third bevel gear 1202 and the fourth bevel gear 1203.

[0046] like Figure 1-2 As shown, as a specific technical solution, it also includes an industrial vacuum cleaner 2, the dust inlet end of the industrial vacuum cleaner 2 is connected to a dust suction pipe 6, the end of the dust suction pipe 6 away from the industrial vacuum cleaner 2 is connected to a plurality of connecting pipes 601, the plurality of connecting pipes 601 are fixedly installed at equal intervals on the top of the frame 1, and the connecting pipes 601 pass through the top of the frame 1, the bottom end of the connecting pipe 601 is connected to a first corrugated hose 8, and the bottom end of the first corrugated hose 8 is fixedly connected to the top of the dust hood 7.

[0047] When the knife roller 3 is in operation, the dust hood 7 cooperates with the industrial vacuum cleaner 2 to clean the surface of the knife roller 3 in real time.

[0048] Specifically, the industrial vacuum cleaner 2 is started, forming a negative pressure in the dust hood 7, and the debris and dust on the knife roller 3 enter through the bottom opening of the dust hood 7. The debris enters the industrial vacuum cleaner 2 through the dust hood 7, the first corrugated hose 8, the connecting pipe 601, and the dust pipe 6 in sequence; at the same time, the knife roller 3 rotates to achieve cleaning of various positions on the circumference of the knife roller 3.

[0049] The first corrugated hose 8 is retractable and is used for connection when the dust hood 7 is moved to different heights.

[0050] like Figure 5-6 As shown, there are two elastic telescopic pressure pieces, and the two elastic telescopic pressure pieces are respectively installed on both sides of the top of the dust hood 7, and the elastic telescopic pressure piece includes a guide rod 9 and a first spring 10; the bottom end of the guide rod 9 is fixedly connected to the top surface of the dust hood 7, and the guide rod 9 is connected with the first guide hole 102 opened on the top of the frame 1, and the first spring 10 is sleeved on the guide rod 9, and the top end of the first spring 10 is fixedly connected to the top inner wall of the frame 1, and the bottom end of the first spring 10 is fixedly connected to the top of the dust hood 7.

[0051] The first spring 10 is always in a compressed state, and when it is in the lowest position, its compression amount is low; when the dust hood 7 moves upward with the knife roller 3, the first spring 10 will be compressed to increase the compression amount, and the guide rod 9 and the first guide hole 102 are used to provide positioning for the dust hood 7 to ensure that the dust hood 7 can only move up and down with the knife roller 3.

[0052] Through the above design, when the dust hood 7 is pushed on the knife roller 3 and moved to different heights, the dust hood 7 is always attached to the top side of the knife roller 3 by the elastic force of the first spring 10.

[0053] like Figure 3 and Figure 5 As shown, an opening is provided at the bottom of the dust hood 7, and a plurality of equally spaced embedding grooves 701 are provided at the bottom of the dust hood 7, and the top of the annular knife 301 is embedded in the embedding groove 701; a plurality of balls 14 are also provided at the bottom of the dust hood 7, and the balls 14 are in contact with the cylindrical surface of the knife roller 3.

[0054] A recessed hole 702 is provided at the bottom of the dust hood 7, and a bottom retaining ring 15 is fixedly mounted at the bottom of the recessed hole 702. A circular cavity with a bottom opening is formed between the top surface of the bottom retaining ring 15 and the wall of the recessed hole 702. The ball 14 is arranged in the circular cavity, and the bottom of the ball 14 passes through the bottom opening of the circular cavity.

[0055] The dust cover 7 has a bottom opening and a plurality of embedding grooves 701 at the bottom, which are used to adapt to the knife roller 3 and the annular knife 301 .

[0056] The top side of the annular knife 301 is located in the embedding groove 701 , and the bottom of the dust cover 7 is in contact with the top side of the cylindrical surface of the knife roller 3 through the ball bearing 14 ; the bottom surface of the dust cover 7 is in close contact with the knife roller 3 .

[0057] It should be noted that there is a gap between the annular knife 301 and the embedded groove 701, as well as between the bottom surface of the dust hood 7 and the cylindrical surface of the knife roller 3. The size of the gap can be set according to actual usage to ensure that the debris generated by cutting can pass through.

[0058] Meanwhile, in the above, the ball bearing 14 is used. When the knife roller 3 rotates, rolling friction is generated by the ball bearing 14 to reduce wear.

[0059] Furthermore, if Figure 6-7 As shown, the sharpening mechanism includes a carrier bar 18, and a plurality of sharpeners 17 are fixedly installed at equal intervals on the bottom of the carrier bar 18. A knife entry is set at the bottom of the sharpener 17, and the entrance grooves of the plurality of sharpeners 17 are respectively aligned with the tops of the plurality of annular knives 301, and a plurality of through grooves 1801 are opened on the carrier bar 18.

[0060] A second corrugated hose 11 is fixedly installed between the top inner wall of the frame 1 and the top surface of the dust hood 7, and a vertical rod 19 is arranged in the bottom end of the second corrugated hose 11. The vertical rod 19 is connected with a second guide hole 703 opened at the top of the dust hood 7, and the bottom end of the vertical rod 19 is fixedly connected to the top surface of the carrier strip 18. A second spring 20 is sleeved on the vertical rod 19, and the top end of the second spring 20 is fixedly connected to the rod surface of the vertical rod 19, and the bottom end of the second spring 20 is fixedly connected to the top inner wall of the dust hood 7.

[0061] The entire electric knife roller 3 structure is also specifically designed for knife sharpening and maintenance. After the knife roller 3 is used for a long time and the blade sharpness of the annular knife 301 thereon decreases, the knife sharpening operation is performed through the knife sharpening mechanism.

[0062] Specifically, the knife roller 3 is driven to move upward, and the dust hood 7 moves upward together until the vertical rod 19 contacts the inner side surface of the top of the frame 1. The vertical rod 19 and the knife sharpening mechanism below the vertical rod 19 cannot continue to move upward together due to being blocked. Then the knife roller 3 and the dust hood 7 continue to move upward, and the vertical rod 19 slides with the second guide hole 703, and at the same time the second spring 20 is compressed, and the annular knife 301 on the knife roller 3 enters the entrance groove of the knife sharpener 17. The knife roller 3 rotates, and the knife sharpener 17 sharpens the knife.

[0063] After the knife sharpening is completed, the knife roller 3 moves downward to reset, wherein the knife sharpening mechanism and the dust cover 7 are relatively moved by the elastic force of the second spring 20, so that the knife sharpening mechanism is separated from the annular knife 301, and the position of the knife sharpening mechanism in the dust cover 7 is reset.

[0064] The dust cover 7 is preferably made of a transparent material to facilitate viewing of the internal situation.

[0065] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. An electric knife roller structure for a packaging printing and slitting machine, comprising a knife roller (3), characterized in that: Also includes: A frame (1), wherein a lifting mechanism (5) is installed on both sides of the frame (1), the knife roller (3) is rotatably installed between the two lifting mechanisms (5), and one end of the knife roller (3) is connected to a rotating mechanism (12); the knife roller (3) is installed with a plurality of annular knives (301) at equal intervals along the length direction; A dust hood (7), the dust hood (7) being arranged on the top side of the knife roller (3), and an elastic retractable pressing piece being arranged between the dust hood (7) and the frame (1), so that the bottom of the dust hood (7) is attached to the top side of the knife roller (3); A knife sharpening mechanism, the knife sharpening mechanism is used for sharpening the annular knife (301), and the knife sharpening mechanism is arranged inside the dust hood (7).

2. The electric knife roller structure of the packaging printing and slitting machine according to claim 1, characterized in that: The invention also comprises a driving mechanism (4), wherein the driving mechanism (4) comprises a fixed seat (401), a dual-axis motor (402), a first connecting shaft (403), a first bevel gear (404), a second bevel gear (405) and a second connecting shaft (406); the number of the fixed seats (401) is two, and the two fixed seats (401) are fixedly mounted below a machine table (13) of a packaging printing and slitting machine, a top surface of the machine table (13) is provided with a plurality of strip grooves (1301), and the plurality of strip grooves (1301) are respectively aligned with the bottoms of the plurality of annular knives (301), and the dual-axis motor (402) is provided with a plurality of strip grooves (1301) and a plurality of strip grooves (1301) are respectively aligned with the bottoms of the plurality of annular knives (301). 02) is fixedly installed between two fixed seats (401), and a first connecting shaft (403) is rotatably installed in the two fixed seats (401), the output shaft of the dual-axis motor (402) is fixedly connected to the end of the first connecting shaft (403), and the end of the first connecting shaft (403) away from the dual-axis motor (402) is fixedly connected to a first bevel gear (404), the first bevel gear (404) is meshingly connected to the second bevel gear (405), and the top of the second bevel gear (405) is fixedly connected to a second connecting shaft (406); the second connecting shaft (406) is rotatably connected to the machine table (13).

3. The electric knife roller structure of the packaging printing and slitting machine according to claim 2, characterized in that: The lifting mechanism (5) comprises an end frame (501), a screw rod (502), a movable nut (503) and a guide block (504); the end frame (501) is fixedly mounted on the side wall of the frame body (1); the frame body (1) is fixedly mounted above the machine platform (13); the screw rod (502) is rotatably connected to the end frame (501); the bottom end of the screw rod (502) is fixedly connected to the top end of the second connecting shaft (406); the movable nut (503) is threadedly connected to the screw rod (502); one side of the movable nut (503) is fixedly connected to the guide block (504); a vertical groove (101) is provided on the side wall of the frame body (1); and the guide block (504) is slidably connected to the vertical groove (101).

4. The electric knife roller structure of the packaging printing and slitting machine according to claim 3, characterized in that: The guide block (504) is fixedly connected to the side frame (16), and the knife roller (3) is rotatably connected to the side frame (16); the rotating mechanism (12) comprises a single-axis motor (1201), a third bevel gear (1202), and a fourth bevel gear (1203); the single-axis motor (1201) is fixedly mounted on the side wall of the side frame (16), the output shaft end of the single-axis motor (1201) is fixedly connected to the third bevel gear (1202), the third bevel gear (1202) is meshingly connected to the fourth bevel gear (1203), and the fourth bevel gear (1203) is fixedly sleeved on one end of the knife roller (3).

5. The electric knife roller structure of the packaging printing and slitting machine according to claim 1, characterized in that: It also comprises an industrial vacuum cleaner (2), wherein the dust inlet end of the industrial vacuum cleaner (2) is connected to a dust suction pipe (6), and one end of the dust suction pipe (6) away from the industrial vacuum cleaner (2) is connected to a plurality of connecting pipes (601), wherein the plurality of connecting pipes (601) are fixedly mounted to the top of the frame (1) at equal intervals, and the connecting pipes (601) penetrate the top of the frame (1), and the bottom end of the connecting pipe (601) is connected to a first corrugated hose (8), and the bottom end of the first corrugated hose (8) is fixedly connected to the top of the dust hood (7).

6. The electric knife roller structure of the packaging printing and slitting machine according to claim 1, characterized in that: The number of the elastic telescopic pressure pieces is two, and the two elastic telescopic pressure pieces are respectively mounted on both sides of the top of the dust hood (7), and the elastic telescopic pressure piece comprises a guide rod (9) and a first spring (10); the bottom end of the guide rod (9) is fixedly connected to the top surface of the dust hood (7), the guide rod (9) is matched and connected to a first guide hole (102) provided on the top of the frame (1), the first spring (10) is sleeved on the guide rod (9), the top end of the first spring (10) is fixedly connected to the top inner wall of the frame (1), and the bottom end of the first spring (10) is fixedly connected to the top of the dust hood (7).

7. The electric knife roller structure of the packaging printing and slitting machine according to claim 1, characterized in that: The bottom of the dust hood (7) is provided with an opening, and the bottom of the dust hood (7) is provided with a plurality of equally spaced embedding grooves (701), and the top of the annular knife (301) is embedded in the embedding groove (701); the bottom of the dust hood (7) is also provided with a plurality of balls (14), and the balls (14) are fitted with the cylindrical surface of the knife roller (3).

8. The electric knife roller structure of the packaging printing and slitting machine according to claim 7, characterized in that: The bottom of the dust cover (7) is provided with a concave hole (702), the bottom of the concave hole (702) is fixedly fitted with a bottom retaining ring (15), a circular cavity with a bottom opening is formed between the top surface of the bottom retaining ring (15) and the wall of the concave hole (702), the ball (14) is arranged in the circular cavity, and the bottom of the ball (14) passes through the bottom opening of the circular cavity.

9. The electric knife roller structure of the packaging printing and slitting machine according to claim 1, characterized in that: The knife sharpening mechanism comprises a carrier bar (18), a plurality of knife sharpeners (17) being fixedly mounted at equal intervals on the bottom of the carrier bar (18), a knife entry opening being arranged at the bottom of the knife sharpener (17), and the entry slots of the plurality of knife sharpeners (17) being respectively aligned with the tops of the plurality of annular knives (301), and a plurality of through slots (1801) being provided on the carrier bar (18).

10. The electric knife roller structure of the packaging printing and slitting machine according to claim 9, characterized in that: A second corrugated hose (11) is fixedly installed between the top inner wall of the frame (1) and the top surface of the dust hood (7); a vertical rod (19) is arranged inside the bottom end of the second corrugated hose (11); the vertical rod (19) is connected to a second guide hole (703) provided at the top of the dust hood (7); the bottom end of the vertical rod (19) is fixedly connected to the top surface of the carrier bar (18); a second spring (20) is sleeved on the vertical rod (19); the top end of the second spring (20) is fixedly connected to the rod surface of the vertical rod (19); and the bottom end of the second spring (20) is fixedly connected to the top inner wall of the dust hood (7).

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