Double-rotation type label cutting device

Abstract

The invention relates to the technical field of label cutting equipment, in particular to a double-rotation type label cutting device which comprises a driving mechanism used for driving a cutter assembly and a cutter pillow assembly to rotate. According to the invention, the side wall of the blade and the rubber soft cushion in the pushing column extrude each other, so that the pressure generated by the blade during cutting can be buffered by the rubber soft cushion, the hard extrusion force on the blade is reduced, meanwhile, the noise of cutting marks can be reduced, and the distances of tool bits of blades with different specifications are possibly different; different cutter gaskets are inserted into the pushing column, so that the blade and the cutter pillow plate reach the optimal position, the blade and the cutter pillow plate reach the theoretical value without being adjusted through threads, the blade can be installed and adjusted without experienced engineers, meanwhile, the installation speed of the blade is increased, and the production efficiency is improved. As the blade is pressed by the knife pressing rotating seat supported by the air cylinder, the air cylinder has a certain buffering effect when the label is cut off, and the noise is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of label cutting equipment, in particular to a double-rotating label cutting device. Background Art

[0002] The double rotary label cutting device adopts a rotary cutting method with a blade and a cutting block. The double rotary label cutting device is widely used in the field of hot melt labels. This label cutting device usually includes two rotating parts, one is a flying knife seat with a blade, and the other is a cutting roller with a cutting block. When the label passes through the cutting area, the flying knife seat and the cutting roller rotate at the same time, and the blade and the cutting block quickly cut the label when they rotate to the cutting point. Due to the rotary cutting method, the label is cut quickly and the cutting efficiency is high. The cooperation between the blade and the cutting block makes the cutting edge free of burrs and high neatness.

[0003] The traditional rotary label cutting device has cumbersome and complicated steps for disassembling and installing the cutter. During disassembly, a screwdriver or other tool needs to be used to loosen the screws or clamping device of the label cutting knife. During the process, it is necessary to ensure that the screws or clamping device will not be damaged. After installing the new label cutting knife, experienced engineers are required to adjust the position of the label cutting knife so that it keeps in contact with the cutting block, so the installation efficiency of the label cutting knife is low. After long-term use, the cutting block will have dents at the contact position with the label cutting knife. The dents will reduce the cutting effect of the device, so it is necessary to regularly adjust the contact position of the cutting block. At present, most of them rely on manual adjustment, which is easy to affect the label cutting work. In addition, the existing label cutting adopts an impact cutting method, which makes a lot of noise when cutting labels. Summary of the invention

[0004] The object of the present invention is to provide a double-rotation label cutting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A double-rotating label cutting device, comprising:

[0007] A driving mechanism, wherein the driving mechanism is used to drive the cutter assembly and the bolster assembly to rotate;

[0008] The cutter mechanism is rotatably arranged inside the driving mechanism, and the cutter mechanism is used for installing and removing the label cutting knife. The cutter mechanism includes a shaft rod, and two connecting shells are symmetrically fixedly connected to the outer wall of the shaft rod, and the side walls of the two connecting shells are fixedly connected to the mounting seat, and the mounting seat has two symmetrical limiting grooves inside, and the two limiting grooves are slidably embedded with pin shafts, and an abutment plate is fixedly connected between the two pin shafts, and the outer walls of the two pin shafts are fixedly connected with a reset spring, and a blade is arranged on one side of the abutment plate, and two mounting holes are symmetrically provided in the blade, and the mounting holes are slidably sleeved with the pin shaft;

[0009] The label rolling mechanism is rotatably arranged inside the driving mechanism, and the label rolling mechanism is used for adsorbing and rolling labels.

[0010] Furthermore, the driving mechanism includes a shell, and two reducer bases are symmetrically fixedly connected to the shell, and a reducer is fixedly arranged on the top of the two reducer bases, the output end of the reducer is fixedly connected to the shaft rod, and the motor shaft of the servo motor is fixedly connected to the input end of the reducer.

[0011] Furthermore, a roller is rotatably connected to the interior of the shell.

[0012] Furthermore, the connecting shell is internally rotatably connected to a knife pressing rotating seat, the end of the knife pressing rotating seat is pressed and abutted against the blade, and two connecting seats are symmetrically and fixedly connected to the inner wall of the knife pressing rotating seat, one end of the cylinder is rotatably connected to each of the two connecting seats, and the other ends of the two cylinders are rotatably connected to the connecting shell.

[0013] Furthermore, one end of two connecting plates are symmetrically rotatably connected to the inner wall of the knife pressing rotating seat, and the other ends of the two connecting plates are rotatably connected to a rack plate 1, and a limiting rod fixedly connected to the connecting shell is slidably sleeved in the rack plate 1.

[0014] Furthermore, one side of the two rack plates is meshed with a tooth column, a positioning shaft is fixedly connected between the two tooth columns, one side of the tooth column is meshed with a rack plate 2, a push column is fixedly connected between the two ends of the two rack plates, two round rods slidably connected to the connecting shell are fixedly connected to the side walls of the push column, a rubber pad is slidably inserted in the push column, the blade is in conflict with the rubber pad, and a knife gasket is provided on one side of the rubber pad.

[0015] Furthermore, the label rolling mechanism includes a knife drum, a hollow shaft fixedly connected to the output end of the servo motor is fixedly connected at the center position of the knife drum, a plurality of adsorption holes connected to the interior of the hollow shaft are equidistantly arranged in a ring on the outer wall of the knife drum, the bottom end of the hollow shaft is rotatably connected to a round seat, and an input pipe of an air pump is fixedly connected to the outer wall of the round seat.

[0016] Furthermore, an arc groove is symmetrically opened on the outer wall of the knife drum, an arc column is slidably embedded in the arc groove, a knife pillow seat is fixedly connected to one side of the arc column, a knife pillow plate is slidably inserted in the knife pillow seat, extrusion springs are fixedly connected to both ends of the arc column, a baffle is fixedly connected in the arc groove, and the baffle is slidably connected to the arc column.

[0017] Furthermore, one end of the arc column is fixedly connected to one end of a traction rope, a fixed pulley is wound around the traction rope, the fixed pulley is rotatably connected to the knife drum, the other end of the traction rope is fixedly connected to a winding wheel, the top of the winding wheel is fixedly connected to a ratchet gear, a plurality of fan blades are fixedly connected to the bottom of the ratchet gear at equal intervals in an annular manner, an air jet column is provided on one side of the ratchet gear, the end of the air jet column is fixedly connected to a fixed pipe, an electromagnetic valve is fixedly provided on the outside of the fixed pipe, the end of the fixed pipe is fixedly connected to a rotating pipe, and the bottom end of the rotating pipe is rotatably connected to an air storage bag.

[0018] Furthermore, one side of the ratchet gear is meshed and engaged with a coupling tooth block, an adjusting column is fixedly connected in the coupling tooth block, the top of the adjusting column is rotatably connected to a limiting seat, and a torsion spring is fixedly connected between the top of the coupling tooth block and the limiting seat.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When removing the blade, the two cylinders in the connecting shell can drive the knife pressing rotating seat to rotate outward, so that the end of the knife pressing rotating seat is no longer pressed against the blade, and the installation space of the blade is expanded at the same time. Then the old blade can be removed from the pin shaft, so there is no need to use tools to remove the screws to remove the blade. When installing a new blade, the mounting hole on the blade can be aligned with the pin shaft and placed, and the blade can be pushed until it conflicts with the abutment plate. The cylinder drives the knife pressing rotating seat to rotate, and while rotating, it can drive the rack plate 1 to slide on the limit rod through the connecting plate. The rack plate 1 drives the tooth column to rotate, thereby driving the rack plate 2 to move in the opposite direction of the rack plate 1. Therefore, the rack plate 2 drives the push column to push the blade, so that the blade can be The blade is pushed out to be exposed to the outside world, and the side wall of the blade and the rubber pad in the push column are squeezed against each other, so that the pressure generated by the blade when cutting will be buffered by the rubber pad, thereby reducing the hard squeezing force on the blade and reducing the noise of cutting labels. Different specifications of blades may have different head distances. By inserting different knife gaskets in the push column, the blade and the knife pillow plate are in the optimal position. The blade and the knife pillow plate are not adjusted by threads to reach the theoretical value, so experienced engineers are not required to complete the installation and adjustment of the blade, and the installation speed of the blade is improved. Since the blade is pressed by the knife pressing rotating seat supported by the cylinder, the cylinder has a certain buffering effect when cutting the label, thereby further reducing the noise.

[0021] 2. By setting a plurality of adsorption holes in the knife drum, when the knife drum rotates, the hollow shaft and the plurality of adsorption holes are connected, so when the vacuum pump evacuates the hollow shaft, a negative pressure state can be maintained between the adsorption holes and the labels, so that the labels are adsorbed on the surface of the knife drum and are pulled and rolled by it, thereby ensuring the neatness of the cut labels. Grooves are set between the adsorption holes in different layers to make the airflow more unobstructed and prevent the labels from bulging.

[0022] 3. When dents appear on the surface of the knife pillow plate after long-term use, the solenoid valve can be opened briefly, so that the high-pressure air in the air storage bag will be transported to the jet column and sprayed out, thereby driving the fan blade and the ratchet gear to rotate one circle under the action of air pressure, and then the ratchet gear synchronously drives the winding wheel to rotate one circle, and the winding wheel will wind the traction rope one circle, so that one end of the traction rope can drive the arc column to slide a short distance in the arc groove, so that the position of the knife pillow seat and the knife pillow plate can be adjusted, thereby changing the contact position of the blade and the knife pillow plate, thus avoiding the influence of the dent position on the label cutting operation, and the automatic adjustment speed of the knife pillow plate is fast, and there is no need to stop the device for manual adjustment, so it will not affect the label cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the driving mechanism in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the cutter mechanism in the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of the connecting shell in the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the knife pressing rotating seat in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the mounting seat in the present invention;

[0029] Figure 7 This is a schematic diagram of the blade installation explosion structure in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the abutment plate in the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the label scrolling mechanism in the present invention;

[0032] Fig.10 It is a schematic diagram of the internal structure of the knife drum in the present invention;

[0033] Fig.11 It is a schematic diagram of the arc column connection structure in the present invention;

[0034] Fig.12 It is a schematic diagram of the structure of the ratchet gear in the limiting state in the present invention.

[0035] In the figure: 100, driving mechanism; 101, housing; 102, reducer seat; 103, reducer; 104, servo motor; 105, roller; 200, cutting mechanism; 201, shaft; 202, connecting shell; 203, mounting seat; 204, limiting groove; 205, pin; 206, return spring; 207, abutment plate; 208, blade; 209, mounting hole; 210, knife pressing rotating seat; 211, connecting seat; 212, cylinder; 213, connecting plate; 214, rack plate 1; 215, limiting rod; 216, tooth column; 217, positioning shaft; 218, rack plate 2; 219, pushing column; 220, round rod; 221, Knife gasket; 222, rubber cushion; 300, label scrolling mechanism; 301, knife drum; 302, hollow shaft; 303, adsorption hole; 304, arc groove; 305, round seat; 306, vacuum pump; 307, arc column; 308, knife pillow seat; 309, knife pillow plate; 310, extrusion spring; 311, baffle; 312, fixed pulley; 313, traction rope; 314, winding wheel; 315, ratchet gear; 316, fan blade; 317, jet column; 318, snap-on tooth block; 319, limit seat; 320, adjustment column; 321, torsion spring; 322, fixed tube; 323, solenoid valve; 324, rotating tube; 325, air storage bag. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-12In an embodiment of the present invention, a dual-rotation label cutting device includes: a driving mechanism 100, a cutter mechanism 200, a label rolling mechanism 300, and a driving mechanism 100. The driving mechanism 100 is used to drive the cutter assembly and the knife pillow assembly to rotate; the cutter mechanism 200 is rotatably arranged inside the driving mechanism 100, and the cutter mechanism 200 is used to install and remove the label cutting knife. The cutter mechanism 200 includes a shaft 201, and two connecting shells 202 are symmetrically fixedly connected to the outer wall of the shaft 201. The side walls of the two connecting shells 202 are fixedly connected to a mounting seat 203. The mounting seat 203 has two symmetrical limit grooves 204 inside, and the two limit grooves 204 are fixedly connected to the side walls of the two connecting shells 202. A pin 205 is slidably embedded in each of the limiting grooves 204, and the pin 205 can limit the blade 208 so that the blade 208 will not be thrown out due to the centrifugal force generated by the rotation during the rotation. A support plate 207 is fixedly connected between the two pins 205, and a reset spring 206 is fixedly connected to the outer wall of the two pins 205. A blade 208 is arranged on one side of the support plate 207, and two mounting holes 209 are symmetrically opened in the blade 208, and the mounting holes 209 are slidably sleeved with the pin 205; the label rolling mechanism 300 is rotatably arranged inside the driving mechanism 100, and the label rolling mechanism 300 is used to adsorb and roll the label. The driving mechanism 100 includes a housing 101, and two reducer seats 102 are symmetrically fixedly connected to the housing 101, and reducers 103 are fixedly arranged on the top of the two reducer seats 102, and the output end of the reducer 103 is fixedly connected to the shaft 201, and the motor shaft of the servo motor 104 is fixedly connected to the input end of the reducer 103. The housing 101 is rotatably connected to a roller 105 , which drives the cutter mechanism 200 and the label rolling mechanism 300 to rotate respectively. The label can be adsorbed by the cutter drum 301 and rolled on the outer wall of the cutter drum 301 .

[0038] Specifically, in the device, two servo motors 104 and a reducer 103 cooperate to drive the cutter mechanism 200 and the label rolling mechanism 300 to rotate respectively, and the label can be adsorbed by the knife drum 301 so that it is rolled on the outer wall of the knife drum 301. When the blade 208 and the knife pillow plate 309 rotate to the contact point, the label can be cut. Two blades are arranged in the cutter mechanism 200, and two knife pillow plates 309 are symmetrically arranged on the outer wall of the knife drum 301, so that the two can perform two cutting operations in one rotation, which helps to improve the label cutting efficiency of materials such as hot melt labels, pearlescent films, and paper-plastic composite films;

[0039] When removing the blade, the two cylinders 212 in the connecting shell 202 can drive the knife pressing rotating seat 210 to rotate outward, so that the end of the knife pressing rotating seat 210 is no longer pressed against the blade 208, and the installation space of the blade 208 is expanded. Then the old blade can be removed from the pin 205, so there is no need to use tools to remove the screws to remove the blade 208. When installing a new blade 208, the mounting hole 209 on the blade 208 can be aligned with the pin 205 for placement, and the blade 208 can be pushed until it conflicts with the abutment plate 207.

[0040] Embodiment 1

[0041] like Figure 4-8 As shown, in this embodiment, a knife pressing rotating seat 210 is rotatably connected inside the connecting shell 202, and the end of the knife pressing rotating seat 210 is pressed and abutted against the blade 208. Two connecting seats 211 are symmetrically fixedly connected to the inner wall of the knife pressing rotating seat 210, and one end of a cylinder 212 is rotatably connected to the two connecting seats 211, and the other ends of the two cylinders 212 are rotatably connected to the connecting shell 202. One end of two connecting plates 213 is symmetrically rotatably connected to the inner wall of the knife pressing rotating seat 210, and the other ends of the two connecting plates 213 are rotatably connected to a rack plate 1 214, and a limit rod 215 fixedly connected to the connecting shell 202 is slidably sleeved in the rack plate 1 214. One side of the two rack plates 214 is meshed with a tooth column 216, a positioning shaft 217 is fixedly connected between the two tooth columns 216, one side of the tooth column 216 is meshed with a rack plate 218, a push column 219 is fixedly connected between the ends of the two rack plates 218, and two round rods 220 slidably connected to the connecting shell 202 are fixedly connected to the side wall of the push column 219. A rubber pad 222 is slidably inserted in the push column 219. The pressure generated by the blade 208 when cutting will be buffered by the rubber pad 222, thereby reducing the hard squeezing force on the blade 208 and reducing the noise of cutting the label. The blade 208 conflicts with the rubber pad 222, and a knife gasket 221 is provided on one side of the rubber pad 222.

[0042] In this embodiment, the cylinder 212 drives the knife pressing rotating seat 210 to rotate, and while rotating, it can drive the rack plate 1 214 to slide on the limiting rod 215 through the connecting plate 213, and the rack plate 1 214 drives the tooth column 216 to rotate, thereby driving the rack plate 218 to move in the opposite direction of the rack plate 1 214, so that the rack plate 218 drives the pushing column 219 to push the blade 208, so that the blade 208 can be pushed out and exposed to the outside world, and the side wall of the blade 208 and the rubber pad 222 in the pushing column 219 are squeezed, so that the pressure generated by the blade 208 when cutting will be buffered by the rubber pad 222, so that the blade 208 The hard extrusion force on the label 8 is reduced, and the noise of cutting the label can also be reduced. The blades 208 of different specifications may have different blade head distances. By inserting different knife gaskets 221 into the push column 219, the blade 208 and the knife pillow plate 309 are in the optimal position. The blade 208 and the knife pillow plate 309 are not adjusted by threads to reach the theoretical value, so the installation and adjustment of the blade 208 can be completed without experienced engineers, and the installation speed of the blade 208 is improved. Since the blade 208 is pressed by the knife pressing rotating seat 210 supported by the cylinder 212, the cylinder 212 has a certain buffering effect when cutting the label, thereby further reducing the noise.

[0043] Embodiment 2

[0044] like Fig. 9 As shown, in this embodiment, the label rolling mechanism 300 includes a knife drum 301, and a hollow shaft 302 fixedly connected to the output end of the servo motor 104 is fixedly connected at the center position of the knife drum 301. A plurality of adsorption holes 303 connected to the inside of the hollow shaft 302 are equidistantly arranged in a ring on the outer wall of the knife drum 301. A negative pressure state can be maintained between the adsorption holes 303 and the label, so that the label is adsorbed on the surface of the knife drum 301 and is pulled and rolled by it. The bottom end of the hollow shaft 302 is rotatably connected to a round seat 305, and an input pipe of an air pump 306 is fixedly connected to the outer wall of the round seat 305.

[0045] In a specific implementation, a plurality of adsorption holes 303 are provided in the knife drum 301. When the knife drum 301 rotates, the hollow shaft 302 is connected to the plurality of adsorption holes 303. Thus, when the vacuum pump 306 evacuates air from the hollow shaft 302, a negative pressure state can be maintained between the adsorption holes 303 and the labels. In this way, the labels are adsorbed on the surface of the knife drum 301 and are pulled and rolled by it, thereby ensuring the neatness of the cut labels. Grooves are provided between the adsorption holes 303 on different layers to make the airflow more unobstructed, thereby preventing the labels from bulging.

[0046] Embodiment 3

[0047] like Figure 10-12As shown, in the present embodiment, arc grooves 304 are symmetrically provided on the outer wall of the knife drum 301, an arc column 307 is slidably embedded in the arc groove 304, a knife pillow seat 308 is fixedly connected to one side of the arc column 307, a knife pillow plate 309 is slidably inserted in the knife pillow seat 308, extrusion springs 310 are fixedly connected to both ends of the arc column 307, a baffle 311 is fixedly connected in the arc groove 304, and the baffle 311 is slidably connected to the arc column 307. The end of the arc column 307 is fixedly connected to one end of a traction rope 313, and a fixed pulley 312 is wound around the traction rope 313. The fixed pulley 312 is rotatably connected to the knife drum 301, and the other end of the traction rope 313 is fixedly connected to a winding wheel 314. The top of the winding wheel 314 is fixedly connected to a ratchet gear 315, and the bottom of the ratchet gear 315 is fixedly connected to a plurality of fan blades 316 in an equidistant manner in an annular manner. A jet column 317 is provided on one side of the ratchet gear 315, and the end of the jet column 317 is fixedly connected to a fixed pipe 322, and an electromagnetic valve 323 is fixedly provided on the outside of the fixed pipe 322, and the end of the fixed pipe 322 is fixedly connected to a rotating pipe 324, and the bottom end of the rotating pipe 324 is rotatably connected to an air storage bag 325. A snap-fit ​​tooth block 318 is engaged and engaged on one side of the ratchet gear 315. The snap-fit ​​tooth block 318 is used to limit the ratchet gear 315 to prevent the ratchet gear 315 and the winding wheel 314 from rotating in the opposite direction under the pulling of the traction rope 313. An adjusting column 320 is fixedly connected in the snap-fit ​​tooth block 318. The top of the adjusting column 320 is rotatably connected to the limiting seat 319. A torsion spring 321 is fixedly connected between the top of the snap-fit ​​tooth block 318 and the limiting seat 319.

[0048] In specific implementation, when a dent appears on the surface of the knife pillow plate 309 after long-term use, the solenoid valve 323 can be opened briefly, so that the high-pressure air in the air storage bag 325 will be transported to the jet column 317 and sprayed out, thereby driving the fan blade 316 and the ratchet gear 315 to rotate one circle under the action of air pressure, and then the ratchet gear 315 synchronously drives the winding wheel 314 to rotate one circle, and the winding wheel 314 will wind the traction rope 313 one circle, so that one end of the traction rope 313 can drive the arc column 307 to slide a short distance in the arc groove 304, so that the position of the knife pillow seat 308 and the knife pillow plate 309 can be adjusted, thereby changing the contact position of the blade 208 and the knife pillow plate 309, thereby avoiding the influence of the dent position on the label cutting operation, and the automatic adjustment speed of the knife pillow plate 309 is fast, and there is no need to stop the device for manual adjustment, so it will not affect the label cutting efficiency.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-rotating label cutting device, characterized in that: include: A driving mechanism (100), the driving mechanism (100) is used to drive the cutter assembly and the knife pillow assembly to rotate; The cutter mechanism (200) is rotatably arranged inside the driving mechanism (100), and is used for installing and removing the label cutting knife. The cutter mechanism (200) comprises a shaft (201), and two connecting shells (202) are symmetrically fixedly connected on the outer wall of the shaft (201), and the side walls of the two connecting shells (202) are fixedly connected with a mounting seat (203), and the mounting seat (203) is symmetrically provided with two limiting grooves (204) inside, and the two limiting grooves (204) are both slidably embedded with a pin shaft (205), and an abutment plate (207) is fixedly connected between the two pin shafts (205), and the outer walls of the two pin shafts (205) are fixedly connected with a return spring (206), and a blade (208) is arranged on one side of the abutment plate (207), and two mounting holes (209) are symmetrically opened in the blade (208), and the mounting holes (209) are slidably sleeved with the pin shaft (205); The label rolling mechanism (300) is rotatably arranged inside the driving mechanism (100), and the label rolling mechanism (300) is used to absorb and roll labels.

2. A double-rotating label cutting device according to claim 1, characterized in that: The driving mechanism (100) comprises a housing (101), two reducer bases (102) are symmetrically fixedly connected to the housing (101), reducers (103) are fixedly arranged on the tops of the two reducer bases (102), the output end of the reducer (103) is fixedly connected to the shaft (201), and the motor shaft of the servo motor (104) is fixedly connected to the input end of the reducer (103).

3. A double-rotating label cutting device according to claim 2, characterized in that: A roller (105) is rotatably connected inside the housing (101).

4. A double-rotating label cutting device according to claim 2, characterized in that: A knife pressing rotating seat (210) is rotatably connected inside the connecting shell (202), and the end of the knife pressing rotating seat (210) is pressed and abutted against the blade (208). Two connecting seats (211) are symmetrically fixedly connected to the inner wall of the knife pressing rotating seat (210), and one end of a cylinder (212) is rotatably connected to each of the two connecting seats (211), and the other ends of the two cylinders (212) are rotatably connected to the connecting shell (202).

5. A double-rotating label cutting device according to claim 4, characterized in that: The inner wall of the knife pressing rotating seat (210) is symmetrically rotatably connected to one end of two connecting plates (213), and the other ends of the two connecting plates (213) are both rotatably connected to a rack plate 1 (214), and a limiting rod (215) fixedly connected to the connecting shell (202) is slidably sleeved in the rack plate 1 (214).

6. A double-rotating label cutting device according to claim 5, characterized in that: One side of the two rack plates (214) is meshed with a tooth column (216), a positioning shaft (217) is fixedly connected between the two tooth columns (216), one side of the tooth column (216) is meshed with a rack plate (218), a push column (219) is fixedly connected between the ends of the two rack plates (218), two round rods (220) slidably connected to the connecting shell (202) are fixedly connected to the side wall of the push column (219), a rubber pad (222) is slidably inserted in the push column (219), the blade (208) is in conflict with the rubber pad (222), and a knife gasket (221) is provided on one side of the rubber pad (222).

7. A double-rotating label cutting device according to claim 6, characterized in that: The label rolling mechanism (300) comprises a knife drum (301), a hollow shaft (302) fixedly connected to the output end of a servo motor (104) is fixedly connected to the center of the knife drum (301), a plurality of adsorption holes (303) connected to the inside of the hollow shaft (302) are equidistantly arranged in an annular pattern on the outer wall of the knife drum (301), a round seat (305) is rotatably connected to the bottom end of the hollow shaft (302), and an input pipe of an air pump (306) is fixedly connected to the outer wall of the round seat (305).

8. A double-rotating label cutting device according to claim 7, characterized in that: The outer wall of the knife drum (301) is symmetrically provided with arc grooves (304), an arc column (307) is slidably embedded in the arc groove (304), a knife pillow seat (308) is fixedly connected to one side of the arc column (307), a knife pillow plate (309) is slidably inserted in the knife pillow seat (308), extrusion springs (310) are fixedly connected to both ends of the arc column (307), a baffle (311) is fixedly connected in the arc groove (304), and the baffle (311) is slidably connected to the arc column (307).

9. A double-rotating label cutting device according to claim 8, characterized in that: The end of the arc column (307) is fixedly connected to one end of a traction rope (313), a fixed pulley (312) is wound around the traction rope (313), the fixed pulley (312) is rotatably connected to the knife drum (301), the other end of the traction rope (313) is fixedly connected to a winding wheel (314), the top of the winding wheel (314) is fixedly connected to a ratchet gear (315), the bottom of the ratchet gear (315) is annularly and equidistantly fixedly connected to a plurality of fan blades (316), one side of the ratchet gear (315) is provided with an air jet column (317), the end of the air jet column (317) is fixedly connected to a fixed pipe (322), the outside of the fixed pipe (322) is fixedly provided with an electromagnetic valve (323), the end of the fixed pipe (322) is fixedly connected to a rotating pipe (324), and the bottom of the rotating pipe (324) is rotatably connected to an air storage bag (325).

10. A double-rotating label cutting device according to claim 9, characterized in that: A snap-fit ​​tooth block (318) is meshed and snap-fitted on one side of the ratchet gear (315), an adjusting column (320) is fixedly connected in the snap-fit ​​tooth block (318), a top end of the adjusting column (320) is rotatably connected to a limiting seat (319), and a torsion spring (321) is fixedly connected between the top of the snap-fit ​​tooth block (318) and the limiting seat (319).

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