High-precision slitting device for medical aluminum foil

Abstract

The invention relates to the field of aluminum foil processing, in particular to a high-precision slitting device for medical aluminum foil. According to an existing aluminum foil roll slitting device, a blade is fixed, so that a cutting point of a cutting edge is prone to thermal fatigue, the cutting edge is not sharp enough, the slitting quality of the rear half section of an aluminum foil roll is poor, meanwhile, vibration generated when the blade and the aluminum foil roll are slit easily enables the aluminum foil roll to be not stable enough, and then the slitting quality of the follow-up aluminum foil roll is affected. A high-precision slitting device for medical aluminum foil comprises a bottom plate, supporting plates are fixedly connected to the two sides of the bottom plate, and a stop lever is fixedly connected between the two supporting plates. The medical aluminum foil roll is cut through forward rotation of the center rod and reverse rotation of the multiple cutting wheels, so that powder generated during cutting of the medical aluminum foil roll can be discharged when the cutting wheels cut the medical aluminum foil roll, and then the cutting quality of the medical aluminum foil roll by the cutting wheels in the follow-up process is improved.

Description

Technical Field

[0001] The invention relates to the field of aluminum foil processing, and in particular to a high-precision slitting device for medicinal aluminum foil. Background Art

[0002] Aluminum foil is a lightweight, corrosion-resistant, and easy-to-process metal material that is widely used in packaging for food, medicine, electronics, and other industries. Its excellent barrier properties, thermal conductivity, and recyclability make aluminum foil an important material in the modern packaging industry.

[0003] Existing aluminum foil roll slitting devices usually slit the aluminum foil roll through the physical contact of the blade. Since the blade is fixed, when the cutting point of the blade contacts the aluminum foil roll for cutting, the cutting point of the blade is prone to heat up and produce thermal fatigue after a period of cutting, making the blade edge not sharp enough, resulting in poor slitting quality of the second half of the aluminum foil roll. At the same time, due to the vibration generated when the blade and the aluminum foil roll are slid, the aluminum foil roll is easily unstable, thereby affecting the subsequent slitting quality of the aluminum foil roll. Summary of the invention

[0004] In order to overcome the shortcomings of the existing aluminum foil roll slitting device that the blade fixing easily causes thermal fatigue of the cutting point of the blade, making the blade not sharp enough, resulting in poor slitting quality of the second half of the aluminum foil roll, and at the same time, the vibration generated when the blade and the aluminum foil roll are slitting, which easily makes the aluminum foil roll unstable, thereby affecting the subsequent slitting quality of the aluminum foil roll, the present invention provides a high-precision slitting device for medicinal aluminum foil that can make the aluminum foil roll and the cutting wheel rotate in different directions, so that the cutting point of the cutting wheel and the aluminum foil roll is cyclically replaced, thereby improving the slitting quality of the aluminum foil roll by the cutting wheel, and at the same time can make the aluminum foil roll more stable during the slitting process, further improving the slitting quality of the cutting wheel.

[0005] The technical implementation scheme of the present invention is: a high-precision slitting device for medicinal aluminum foil, comprising a bottom plate, support plates are fixedly connected on both sides of the bottom plate, a baffle is fixedly connected between the two support plates, a cutting mechanism is provided between the two support plates, the cutting mechanism is used to cut the medicinal aluminum foil roll, an internal support mechanism is also provided between the two support plates, the internal support mechanism is used to internally support the medicinal aluminum foil roll, and limiting mechanisms are provided on the two support plates, the limiting mechanisms are used to limit the cutting mechanism.

[0006] In a preferred embodiment of the present invention, the cutting mechanism includes a cutting frame, the cutting frame is rotatably connected between the two support plates, torsion springs are connected between the two sides of the support plates close to each other and the two cutting frames, one side of the cutting frame is fixedly connected to a fixed frame, the fixed frame is fixedly connected to a power motor, the output shaft of the power motor is fixedly connected to a power shaft, and the power shaft is fixedly connected to a plurality of cutting wheels.

[0007] In a preferred embodiment of the present invention, the internal support mechanism includes a center rod, the two support plates are provided with grooves, a center rod is placed between the grooves between the two support plates, both ends of the center rod are provided with clamping grooves, one end of the center rod is fixedly connected to a fixing ring, the other end of the center rod is slidably connected to a limiting ring, the other end of the center rod is provided with a plurality of clamping holes, a screw is rotatably connected to the limiting ring, one end of the screw is located in one of the clamping holes on the center rod, two transverse grooves are provided on the center rod, both ends of the center rod are slidably connected to a moving bar seat, the two ends of the two moving bars are respectively slidably connected to the two transverse grooves of the center rod, the moving bar is rotatably connected with a hollow disk, and the two moving bars are respectively connected to the center rod. An extrusion spring is connected between the two sides of the center rod, two guide rods are fixedly connected to the two transverse grooves of the center rod, and inner support rods are slidably connected to the two transverse grooves of the center rod. The two guide rods are slidably connected to the inner support rods, and four compression springs are connected between the two inner support rods and the two transverse grooves of the center rod. The four compression springs are located on the four guide rods, and a support plate is fixedly connected to one of the support plates, and a servo motor is fixedly connected to the support plate, and the output shaft of the servo motor is clamped with one end of the center rod, and fixed extrusion strips are fixedly connected to both sides of the cutting frame, and two movable plates are slidably connected to the two support plates, and vertical grooves are opened on the four movable plates, and a fixed cylinder is fixedly connected to the movable plate close to the torsion spring.

[0008] In a preferred embodiment of the present invention, the two inner support rods are located in two transverse grooves of the central rod.

[0009] In a preferred embodiment of the present invention, the limiting mechanism includes a vertical rod, the four movable plates are fixedly connected to the vertical rod, two movable grooves are opened on the two support plates, and movable seats are slidably connected to the two movable grooves on the two support plates. The four movable seats are fixedly connected to a side adjacent to the vertical rod, and the wedge blocks are in contact with the vertical rod. The four movable seats are rotatably connected to limiting wheels.

[0010] In a preferred embodiment of the present invention, it also includes an extrusion mechanism, which is arranged on the two support plates, and is used to extrude the medicinal aluminum foil roll. The extrusion mechanism includes a movable groove plate, and two square grooves are opened on the two support plates, and the two square grooves on the two support plates are slidably connected to the movable groove plate, and a rotating rod is rotatably connected between the movable grooves on the same side of the two support plates, and oblique grooves are opened on the four movable groove plates, and connecting rods are fixedly connected to the four movable plates, and the ends of the connecting rods away from the movable plates are slidably connected to the oblique grooves on the movable groove plates, and extrusion wheels are fixedly connected to the two rotating rods.

[0011] In a preferred embodiment of the present invention, the surfaces of the two extrusion wheels are both made of silicone.

[0012] The present invention has the following advantages: 1. The two ends of the center rod are limited by four limiting wheels, so that the center rod can drive the medicinal aluminum foil roll to rotate more stably. At the same time, the four limiting wheels are rotatably arranged, which can not only limit the center rod, but also drive the four limiting wheels to rotate when the center rod rotates, thereby reducing the friction between the center rod and the limiting wheels, thereby improving the slitting quality of the medicinal aluminum foil roll.

[0013] 2. The medicinal aluminum foil roll is cut by the forward rotation of the center rod and the reverse rotation of several cutting wheels, so that the cutting wheel can also discharge the powder generated when cutting the medicinal aluminum foil roll, thereby improving the slitting quality of the subsequent cutting wheel on the medicinal aluminum foil roll.

[0014] 3. The movement of the four moving slots drives the rotating rod and the extrusion wheel to move toward the direction close to the medicinal aluminum foil roll. The two extrusion wheels squeeze the two sides of the medicinal aluminum foil roll, so that the subsequent cutting wheels can slit the medicinal aluminum foil roll more stably, thereby further improving the slitting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0017] Figure 3 It is a partial three-dimensional structural schematic diagram of the inner support mechanism of the present invention.

[0018] Figure 4 It is a partial three-dimensional structural schematic diagram of the cutting mechanism and the inner supporting mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the inner support mechanism of the present invention.

[0020] Figure 6 It is a partial cross-sectional three-dimensional structural schematic diagram of the inner support mechanism of the present invention.

[0021] Figure 7 It is a partial three-dimensional structural schematic diagram of a partial cross-section of the inner support mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of a partially disassembled three-dimensional structure of the inner support mechanism of the present invention.

[0023] Fig. 9 It is a partial three-dimensional structural schematic diagram of the limiting mechanism and the extrusion mechanism of the present invention.

[0024] Among them, the above-mentioned drawings include the following drawing marks: 1, base plate, 2, support plate, 3, baffle rod, 41, cutting frame, 42, torsion spring, 43, fixed frame, 44, power motor, 45, power shaft, 46, cutting wheel, 51, center rod, 52, fixed ring, 53, limiting ring, 54, screw, 55, moving bar, 56, hollow disk, 57, extrusion spring, 58, guide rod, 59, inner support rod, 510, compression spring, 511, support plate, 512, servo motor, 513, fixed extrusion bar, 514, moving plate, 515, fixed cylinder, 61, vertical rod, 62, moving seat, 63, wedge block, 64, limiting wheel, 71, moving slot plate, 72, rotating rod, 73, connecting rod, 74, extrusion wheel. DETAILED DESCRIPTION

[0025] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0026] Embodiment 1: A high-precision slitting device for medicinal aluminum foil, such as Figure 1-Figure 9 As shown, it includes a base plate 1, support plates 2 are welded on both sides of the base plate 1, a baffle 3 is welded between the two support plates 2, a cutting mechanism is provided between the two support plates 2, and the cutting mechanism is used to cut the medicinal aluminum foil roll, an internal support mechanism is also provided between the two support plates 2, and the internal support mechanism is used to internally support the medicinal aluminum foil roll, and a limiting mechanism is provided on the two support plates 2, and the limiting mechanism is used to limit the cutting mechanism.

[0027] The cutting mechanism includes a cutting frame 41, the cutting frame 41 is rotatably connected between the two support plates 2, torsion springs 42 are connected between the two sides of the support plates 2 close to each other and the two cutting frames 41, a fixed frame 43 is welded to one side of the cutting frame 41, a power motor 44 is fixedly connected to the fixed frame 43, a power shaft 45 is fixedly connected to the output shaft of the power motor 44, and a plurality of cutting wheels 46 are fixedly connected to the power shaft 45, and the plurality of cutting wheels 46 are used to cut the medicinal aluminum foil roll.

[0028] The inner support mechanism includes a center rod 51, and grooves are formed on the two support plates 2. The center rod 51 is placed between the grooves between the two support plates 2. Both ends of the center rod 51 have slots. A fixing ring 52 is welded to one end of the center rod 51, and the other end of the center rod 51 is slidably connected to a limiting ring 53. A plurality of clamping holes are formed on the other end of the center rod 51. A screw rod 54 is rotatably connected to the limiting ring 53. One end of the screw rod 54 is located at the other end of the center rod 51. The screw rod 54 is engaged with a plurality of holes on the center rod 51 to limit the position of the medicinal aluminum foil roll. The center rod 51 is provided with two transverse grooves. Both ends of the center rod 51 are slidably connected with a moving bar 55. Both ends of the two moving bars 55 are respectively slidably connected with the two transverse grooves of the center rod 51. A hollow disk 56 is rotatably connected to the moving bar 55. The two moving bars 55 are respectively connected to the two sides of the center rod 51 with an extrusion spring. Spring 57, two guide rods 58 are welded on the two transverse grooves of the center rod 51, and the two transverse grooves of the center rod 51 are slidably connected with inner support rods 59, and the guide rods 58 are used to guide the inner support rods 59, and the two guide rods 58 are slidably connected to the inner support rods 59, and four compression springs 510 are connected between the two inner support rods 59 and the two transverse grooves of the center rod 51, and the four compression springs 510 are located on the four guide rods 58, and one of the support plates 2 A support plate 511 is welded on it, and a servo motor 512 is fixedly connected to the support plate 511. The output shaft of the servo motor is clamped with one end of the center rod 51. Fixed extrusion bars 513 are welded on both sides of the cutting frame 41, and one side of the two fixed extrusion bars 513 is an inclined surface. Two movable plates 514 are slidably connected to the two support plates 2, and vertical grooves are opened on the four movable plates 514. A fixed cylinder 515 is fixedly connected to the movable plate 514 close to the torsion spring 42.

[0029] The two inner support rods 59 are located in the two transverse grooves of the central rod 51 .

[0030] The limiting mechanism includes a vertical rod 61, the vertical rod 61 is welded on the four movable plates 514, two movable grooves are opened on the two support plates 2, and the two movable grooves on the two support plates 2 are slidably connected to the movable seats 62, and the four movable seats 62 are welded with wedge blocks 63 on the side adjacent to the vertical rod 61, and the wedge blocks 63 are in contact with the vertical rod 61, and the four movable seats 62 are rotatably connected with limiting wheels 64.

[0031] When the medicinal aluminum foil roll needs to be cut, the worker first puts the medicinal aluminum foil roll on the center rod 51, one side of the medicinal aluminum foil roll contacts with the fixing ring 52, then puts the limiting ring 53 on the center rod 51, and then rotates the limiting ring 53 to adjust the direction of the limiting ring 53 so that the screw 54 on the limiting ring 53 is aligned with one of the holes on the center rod 51, then rotates the screw 54 on the limiting ring 53, and the screw 54 moves downward and is inserted into one of the holes on the center rod 51, and then the center rod 51, the fixing ring 52, the limiting ring 53, the screw 54, the moving bar 55, the hollow disk 56, the extrusion spring 57, the guide rod 58, the inner support rod 59 and the compression spring 510 are placed in the grooves of the two support plates 2, and the center rod 51 is close to the servo motor 51. The card slot at one end of the servo motor 512 is connected with the output shaft of the servo motor 512, and both sides of the two hollow disks 56 are respectively inserted into the vertical slots of the two moving plates 514 on the same side. Then the worker starts the servo motor 512 and the power motor 44. The output shaft of the servo motor 512 rotates forward to drive the center rod 51, the fixed ring 52, the limit ring 53, the screw rod 54, the moving bar 55, the extrusion spring 57, the guide rod 58, the inner support rod 59 and the compression spring 510 to rotate forward together. The output shaft of the power motor 44 rotates reversely to drive the power shaft 45 and the plurality of cutting wheels 46 to rotate together. Then the worker pulls the cutting frame 41 to rotate in the direction of the medicinal aluminum foil roll, and the torsion spring 42 is twisted. During the rotation of the cutting frame 41 in the direction of the medicinal aluminum foil roll, the two fixed extrusion bars 513 are driven. The two fixed extrusion bars 513 squeeze the two fixed cylinders 515, the two hollow disks 56 and the two movable plates 514 close to the torsion spring 42 and move in the direction away from each other. The two movable plates 514 close to the torsion spring 42 drive the movable plates 514 and the two movable bars 55 away from the torsion spring 42 to move in the direction away from each other through the hollow disks 56. The two extrusion springs 57 are compressed, and the two movable bars 55 move in the direction away from each other and no longer squeeze the two inner support rods 59. Under the reset action of the compression spring 510, the two inner support rods 59 are reset along the two transverse grooves of the center rod 51 in the direction away from each other. The guide rod 58, the inner support rod 59 and the compression spring 510 are used to reset the center rod 51. The medicinal aluminum foil roll is stretched and clamped from the inside to the outside, and the central rod 51 drives the medicinal aluminum foil roll to rotate forwardly. The movement of the four movable plates 514 drives the vertical rod 61 to move, and the four vertical rods 61 squeeze the wedge blocks 63. The two wedge blocks 63 on the same side drive the movable seat 62 and the limiting wheel 64 to move in the direction of approaching each other. The two limiting wheels 64 on both sides limit the two ends of the central rod 51 respectively. The two ends of the central rod 51 are limited by the four limiting wheels 64, so that the central rod 51 can drive the medicinal aluminum foil roll to rotate more stably. At the same time, the four limiting wheels 64 are rotatably set, which can not only limit the central rod 51, but also drive the four limiting wheels 64 to rotate when the central rod 51 rotates, thereby reducing the friction between the central rod 51 and the limiting wheels 64.In order to improve the slitting quality of the medicinal aluminum foil roll, the cutting frame 41 continues to rotate in the direction of the medicinal aluminum foil roll, and the cutting frame 41 drives several cutting wheels 46 to contact the medicinal aluminum foil roll. The power shaft 45 and several cutting wheels 46 reverse to cut the medicinal aluminum foil roll, and the medicinal aluminum foil roll is cut by the forward rotation of the center rod 51 and the reverse rotation of several cutting wheels 46, so that the cutting wheel 46 can also discharge the powder generated when the medicinal aluminum foil roll is cut when cutting the medicinal aluminum foil roll, thereby improving the slitting quality of the subsequent cutting wheel 46 for the medicinal aluminum foil roll. When the cutting of the medicinal aluminum foil roll is completed, the worker turns off the servo motor 512 and the power motor 44, and the output shaft of the servo motor 512 stops rotating and no longer drives the center rod 51 to rotate forward, and the center no longer drives the medicinal aluminum foil roll to rotate forward, and the output shaft of the power motor 44 stops rotating and no longer drives the power shaft 45 and several cutting The wheel 46 reverses, and finally the worker lifts the cutting frame 41. Under the action of the torsion spring 42, the cutting frame 41 resets and drives the plurality of cutting wheels 46 and the two fixed extrusion bars 513 to reset. The plurality of cutting wheels 46 reset and disengage from the medicinal aluminum foil roll. The two fixed extrusion bars 513 reset and no longer squeeze the moving plate 514 and the fixed cylinder 515. Under the action of the extrusion spring 57, the moving plate 514 and the fixed cylinder 515 reset and drive the two moving bars 55 and the two hollow disks 56 to reset. The two moving bars 55 re-squeeze the two inner support rods 59 to reset. Finally, the worker takes out the center rod 51, the fixed ring 52, the limit ring 53, the screw 54, the moving bar 55, the hollow disk 56, the extrusion spring 57, the guide rod 58, the inner support rod 59 and the compression spring 510 from the grooves of the two support plates 2, and then takes out the medicinal aluminum foil roll cut on the center rod 51.

[0032] Embodiment 2: Based on embodiment 1, Figure 3 and Figure 4 As shown, it also includes an extrusion mechanism, which is arranged on the two support plates 2, and is used to extrude the medicinal aluminum foil roll. The extrusion mechanism includes a movable groove plate 71, and two square grooves are opened on the two support plates 2. The two square grooves on the two support plates 2 are slidably connected to the movable groove plate 71, and the two movable grooves on the same side of the two support plates 2 are rotatably connected with a rotating rod 72, and the four movable groove plates 71 are opened with oblique grooves, and the four movable plates 514 are welded with connecting rods 73, and the ends of the connecting rods 73 away from the movable plates 514 are slidably connected to the oblique grooves on the movable groove plates 71, and the two rotating rods 72 are welded with extrusion wheels 74, and the two extrusion wheels 74 are used to extrude the medicinal aluminum foil roll, and the surfaces of the two extrusion wheels 74 are made of silicone.

[0033] The movement of the four movable plates 514 also drives the four connecting rods 73 to move together. The movement of the four connecting rods 73 pushes the movable slot plate 71 to move along the two square slots opened on the two support plates 2 through the oblique slots on the movable slot plate 71. The movement of the four movable slot plates 71 drives the rotating rod 72 and the extrusion wheel 74 to move toward the direction close to the medicinal aluminum foil roll. The two extrusion wheels 74 squeeze the two sides of the medicinal aluminum foil roll, so that the subsequent several cutting wheels 46 can cut the medicinal aluminum foil roll more stably, thereby further improving the cutting quality. After the cutting is completed, the four movable plates 514 are reset, driving the four movable slot plates 71, the two connecting rods 73 and the two extrusion wheels 74 to reset together.

[0034] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A high-precision slitting device for medicinal aluminum foil, characterized in that: The invention comprises a bottom plate (1), support plates (2) are fixedly connected to both sides of the bottom plate (1), a blocking rod (3) is fixedly connected between the two support plates (2), a cutting mechanism is arranged between the two support plates (2), the cutting mechanism is used to cut the medicinal aluminum foil roll, an inner supporting mechanism is also arranged between the two support plates (2), the inner supporting mechanism is used to provide inner support for the medicinal aluminum foil roll, and a limiting mechanism is arranged on the two support plates (2), the limiting mechanism is used to limit the cutting mechanism.

2. A high-precision slitting device for medicinal aluminum foil according to claim 1, characterized in that: The cutting mechanism comprises a cutting frame (41), the cutting frame (41) is rotatably connected between the two support plates (2), torsion springs (42) are connected between the two sides of the support plates (2) close to each other and the two cutting frames (41), one side of the cutting frame (41) is fixedly connected to a fixing frame (43), the fixing frame (43) is fixedly connected to a power motor (44), the output shaft of the power motor (44) is fixedly connected to a power shaft (45), and the power shaft (45) is fixedly connected to a plurality of cutting wheels (46).

3. A high-precision slitting device for medicinal aluminum foil according to claim 2, characterized in that: The inner support mechanism comprises a center rod (51), grooves are provided on the two support plates (2), the center rod (51) is placed between the grooves of the two support plates (2), both ends of the center rod (51) are provided with clamping grooves, one end of the center rod (51) is fixedly connected to a fixing ring (52), the other end of the center rod (51) is slidably connected to a limiting ring (53), a plurality of clamping holes are provided on the other end of the center rod (51), a screw rod (54) is rotatably connected to the limiting ring (53), and the center rod (51) is provided with a plurality of clamping holes. One end of the screw rod (54) is located in one of the clamping holes on the center rod (51), and two transverse grooves are formed on the center rod (51). Both ends of the center rod (51) are slidably connected to moving bars (55), and both ends of the two moving bars (55) are respectively slidably connected to the two transverse grooves of the center rod (51). A hollow disk (56) is rotatably connected to the moving bar (55), and a compression spring (57) is connected between the two moving bars (55) and the center rod (51). Two guide rods (58) are fixedly connected to the two transverse grooves of the center rod (51), and inner support rods (59) are slidably connected to the two transverse grooves of the center rod (51). The two guide rods (58) are slidably connected to the inner support rods (59), and four compression springs (510) are connected between the two inner support rods (59) and the two transverse grooves of the center rod (51). The four compression springs (510) are located on the four guide rods (58), and one of the support plates (2) is fixedly connected to the inner support rods (59). A support plate (511) is connected, a servo motor (512) is fixedly connected to the support plate (511), the output shaft of the servo motor is clamped with one end of the center rod (51), fixed extrusion strips (513) are fixedly connected to both sides of the cutting frame (41), two movable plates (514) are slidably connected to the two support plates (2), vertical grooves are opened on the four movable plates (514), and a fixed cylinder (515) is fixedly connected to the movable plate (514) close to the torsion spring (42).

4. A high-precision slitting device for medicinal aluminum foil according to claim 3, characterized in that: The two inner support rods (59) are located in the two transverse grooves of the central rod (51).

5. A high-precision slitting device for medicinal aluminum foil according to claim 4, characterized in that: The limiting mechanism comprises a vertical rod (61), the four movable plates (514) are fixedly connected to the vertical rod (61), the two support plates (2) are provided with two movable grooves, the two movable grooves on the two support plates (2) are slidably connected to movable seats (62), the four movable seats (62) are fixedly connected to a wedge block (63) on one side adjacent to the vertical rod (61), the wedge block (63) is in contact with the vertical rod (61), and the four movable seats (62) are rotatably connected to limiting wheels (64).

6. A high-precision slitting device for medicinal aluminum foil according to claim 5, characterized in that: The invention also comprises an extrusion mechanism, which is arranged on the two support plates (2) and is used for extruding the medicinal aluminum foil roll. The extrusion mechanism comprises a movable groove plate (71), two square grooves are formed on the two support plates (2), the two square grooves on the two support plates (2) are slidably connected to the movable groove plate (71), a rotating rod (72) is rotatably connected between the movable grooves on the same side of the two support plates (2), oblique grooves are formed on the four movable groove plates (71), connecting rods (73) are fixedly connected to the four movable plates (514), one end of the connecting rod (73) away from the movable plate (514) is slidably connected to the oblique groove on the movable groove plate (71), and an extrusion wheel (74) is fixedly connected to the two rotating rods (72).

7. A high-precision slitting device for medicinal aluminum foil according to claim 6, characterized in that: The surfaces of the two extrusion wheels (74) are both made of silicone material.

Images