A double rotary label cutting device

Abstract

The present application relates to cutting mark equipment technical field, specifically a kind of double rotary cutting mark device, including driving mechanism, the driving mechanism is used to drive cutting knife component and knife bolster component rotation.In the present application, the rubber soft pad in blade side wall and push column is extruded, so that the pressure generated when blade is cut can be buffered by rubber soft pad, so that the hard extrusion force received by blade is reduced, and the noise of cutting mark can also be reduced.Different specifications of blade may have different distances between cutter head, by inserting different knife gaskets in push column, the optimal position between blade and knife bolster plate can be achieved, and the blade and knife bolster plate are not adjusted to theoretical value by thread, so experienced engineers are not needed to complete the installation and adjustment of blade, and the installation speed of blade is improved.As the blade is supported by the pressing knife rotating seat of cylinder, the cylinder has certain buffering effect when cutting label, so as to further reduce noise.

Description

Technical Field

[0001] This invention relates to the field of label cutting equipment technology, specifically a dual-rotary label cutting device. Background Technology

[0002] The dual-rotary label cutting device employs a rotary cutting method using a combination of blades and a cutting block. Widely used in the hot-melt label industry, this device typically comprises two rotating components: a blade holder and a cutting roller with a cutting block. As the label passes through the cutting area, both the blade holder and the cutting roller rotate simultaneously. The blade and cutting block rapidly cut the label upon reaching the cutting point. Due to the rotary cutting method, the label is cut quickly and efficiently. The combination of the blade and cutting block results in burr-free, highly uniform cuts.

[0003] Traditional rotary label cutting devices involve cumbersome and complex disassembly and installation procedures for the cutter. Disassembly requires the use of screwdrivers or other tools to loosen the screws or clamping devices of the label cutter, while ensuring that the screws or clamping devices are not damaged. After installing a new label cutter, experienced engineers need to adjust the position of the label cutter to ensure that it is in contact with the cutting block. As a result, the installation efficiency of the label cutter is low. After prolonged use, dents will appear at the contact point between the cutting block and the label cutter, which will reduce the cutting effect of the device. Therefore, the contact position of the cutting block needs to be adjusted periodically. Currently, this is mostly done manually, which can easily affect the label cutting operation. In addition, the existing label cutting uses an impact cutting method, which is relatively noisy during the cutting process. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-rotation label cutting device to solve the problems mentioned in the background art.

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

[0006] A dual-rotation label cutting device, comprising:

[0007] A drive mechanism is used to drive the cutter assembly and the blade rest assembly to rotate;

[0008] A cutting mechanism is rotatably mounted inside a drive mechanism. This mechanism is used for the installation and removal of the cutting blade. The cutting mechanism includes a shaft with two connecting shells symmetrically fixed to its outer wall. Each connecting shell has a mounting base fixedly connected to its side wall. Each mounting base has two symmetrically spaced limiting grooves, each containing a slidably inserted pin. A contact plate is fixedly connected between the two pins. Each pin has a return spring fixedly connected to its outer wall. A blade is provided on one side of the contact plate, and two mounting holes are symmetrically spaced within the blade, which slidably engage with the pins.

[0009] The label rolling mechanism is rotatably disposed inside the drive mechanism, and the label rolling mechanism is used to adsorb and roll the label.

[0010] Furthermore, the drive mechanism includes a housing, on which two reducer bases are symmetrically fixedly connected. A reducer is fixedly installed on the top of each of the two reducer bases. The output end of the reducer is fixedly connected to a shaft, and the input end of the reducer is fixedly connected to the motor shaft of a servo motor.

[0011] Furthermore, a roller is rotatably connected inside the outer casing.

[0012] Furthermore, a pressure blade rotating seat is rotatably connected inside the connecting shell. The end of the pressure blade rotating seat presses against the blade. Two connecting seats are symmetrically fixed on the inner wall of the pressure blade rotating seat. A cylinder is rotatably connected to each of the two connecting seats. The other end of the two cylinders is rotatably connected to the connecting shell.

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

[0014] Furthermore, one side of each of the two rack plates is meshed with a toothed column, a positioning shaft is fixedly connected between the two toothed columns, one side of the toothed column is meshed with a rack plate, a push column is fixedly connected between the ends of the two rack plates, two round rods that are slidably connected to the connecting shell are fixedly connected to the side wall of the push column, a rubber pad is slidably inserted into the push column, the blade abuts against the rubber pad, and a blade pad is provided on one side of the rubber pad.

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

[0016] Furthermore, the outer wall of the blade drum is symmetrically provided with arc-shaped grooves, an arc-shaped column is slidably embedded in the arc-shaped groove, a blade pillow seat is fixedly connected to one side of the arc-shaped column, a blade pillow plate is slidably inserted into the blade pillow seat, compression springs are fixedly connected to both ends of the arc-shaped column, a baffle is fixedly connected to the arc-shaped groove, and the baffle is slidably connected to the arc-shaped column.

[0017] Furthermore, a traction rope is fixedly connected to the end of the arc-shaped column, a fixed pulley is wound around the traction rope, the fixed pulley is rotatably connected to the blade drum, a winding wheel is fixedly connected to the other end of the traction rope, a ratchet is fixedly connected to the top of the winding wheel, multiple fan blades are fixedly connected to the bottom of the ratchet in a ring at equal intervals, an air jet column is provided on one side of the ratchet, a fixed pipe is fixedly connected to the end of the air jet column, a solenoid valve is fixedly installed on the outside of the fixed pipe, a rotating pipe is fixedly connected to the end of the fixed pipe, and an air storage tank is rotatably connected to the bottom end of the rotating pipe.

[0018] Furthermore, a locking tooth block is engaged on one side of the ratchet, an adjusting column is fixedly connected in the locking tooth block, a limit seat is rotatably connected to the top of the adjusting column, and a torsion spring is fixedly connected between the top of the locking tooth block and the limit seat.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When disassembling the blade, two cylinders in the connecting housing rotate the pressure blade rotating seat outward, thus removing the blade from the end of the pressure blade rotating seat and opening up the blade installation space. The old blade can then be removed from the pin without the need for tools to remove the screws. When installing a new blade, align the mounting hole on the blade with the pin and push the blade until it abuts against the contact plate. The cylinders rotate the pressure blade rotating seat, which, while rotating, causes the rack plate one to slide on the limit rod via the connecting plate. The rack plate one drives the gear column to rotate, thereby driving the rack plate two to move in the opposite direction to the rack plate one. Therefore, the rack plate two drives the push column to push the blade, thus pushing the blade. The blade is exposed to the outside environment, and the rubber pads in the push column are pressed together. This cushions the pressure generated when the blade cuts, reducing the hard extrusion force on the blade and lowering the noise of cutting the label. Different blade sizes may have different blade head distances. By inserting different blade pads into the push column, the optimal position between the blade and the blade rest plate is achieved. The blade and blade rest plate are not adjusted to the theoretical value through threads, so even experienced engineers can complete the installation and adjustment of the blade, which also improves the installation speed. Since the blade is pressed by the pressure rotating seat supported by the cylinder, the cylinder has a certain buffering effect when cutting the label, which further reduces noise.

[0021] By setting multiple adsorption holes in the blade drum, when the blade drum rotates, the hollow shaft and multiple adsorption holes are connected. When the air pump draws air from the hollow shaft, the adsorption holes and the label can maintain a negative pressure state. In this way, the label is adsorbed on the surface of the blade drum and is pulled and rolled by it, ensuring the neatness of the cut label. The grooves set between the adsorption holes of different layers make the airflow smoother and prevent the label from bulging.

[0022] When dents appear on the surface of the blade rest plate after prolonged use, a brief opening of the solenoid valve will send high-pressure air from the air reservoir into the jet column. This air pressure will cause the blades and ratchet to rotate once, and the ratchet will then simultaneously drive the winding wheel to rotate once. The winding wheel will then wind the traction rope once, allowing one end of the traction rope to slide a short distance in the arc groove. This adjusts the position of the blade rest seat and blade rest plate, thus changing the contact position between the blade and the blade rest plate. This avoids the impact of dents on the marking operation, and the automatic adjustment of the blade rest plate is fast, eliminating the need for manual adjustment by stopping the machine, thus not affecting the marking efficiency. Attached Figure Description

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

[0024] Figure 2 This is a schematic diagram of the drive mechanism structure in this invention;

[0025] Figure 3 This is a schematic diagram of the cutting mechanism in this invention;

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

[0027] Figure 5 This is a schematic diagram of the pressure knife rotating seat structure in this invention;

[0028] Figure 6 This is a schematic diagram of the mounting base structure in this invention;

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

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

[0031] Figure 9 This is a schematic diagram of the label rolling mechanism in this invention;

[0032] Figure 10 This is a schematic diagram of the internal structure of the knife drum in this invention;

[0033] Figure 11 This is a schematic diagram of the arc-shaped column connection structure in this invention;

[0034] Figure 12 This is a schematic diagram of the ratchet limiting state structure in this invention.

[0035] In the diagram: 100, Drive mechanism; 101, Housing; 102, Reducer base; 103, Reducer; 104, Servo motor; 105, Roller; 200, Cutting mechanism; 201, Shaft; 202, Connecting shell; 203, Mounting base; 204, Limiting groove; 205, Pin; 206, Return spring; 207, Abutment plate; 208, Blade; 209, Mounting hole; 210, Pressing blade rotating base; 211, Connecting base; 212, Cylinder; 213, Connecting plate; 214, Rack plate one; 215, Limiting rod; 216, Gear column; 217, Positioning shaft; 218, Rack plate two; 219, Push column; 220, Round rod; 221. 222. Blade pad; 300. Label rolling mechanism; 301. Blade drum; 302. Hollow shaft; 303. Adsorption hole; 304. Arc groove; 305. Round seat; 306. Air pump; 307. Arc column; 308. Blade pillow seat; 309. Blade pillow plate; 310. Compression spring; 311. Baffle; 312. Fixed pulley; 313. Traction rope; 314. Rewinding wheel; 315. Ratchet; 316. Fan blade; 317. Air jet column; 318. Snap-fit ​​tooth block; 319. Limit seat; 320. Adjusting column; 321. Torsion spring; 322. Fixing tube; 323. Solenoid valve; 324. Rotating tube; 325. Air storage tank. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-12In this embodiment of the invention, a dual-rotation label cutting device includes: a drive mechanism 100, a cutting mechanism 200, and a label rolling mechanism 300. The drive mechanism 100 drives the cutting assembly and the blade rest assembly to rotate. The cutting mechanism 200 is rotatably disposed inside the drive mechanism 100 and is used for installing and removing the label cutting blade. The cutting mechanism 200 includes a shaft 201, and two connecting shells 202 are symmetrically fixedly connected to the outer wall of the shaft 201. Mounting seats 203 are fixedly connected to the side walls of both connecting shells 202. Two limiting grooves 204 are symmetrically formed inside the mounting seats 203. Each limiting groove 204 has a pin 205 slidably embedded in it. The pin 205 can limit the blade 208, so that the blade 208 will not be thrown out due to the centrifugal force generated during rotation. A contact plate 207 is fixedly connected between the two pins 205. A return spring 206 is fixedly connected to the outer wall of each of the two pins 205. The blade 208 is provided on one side of the contact plate 207. Two mounting holes 209 are symmetrically opened in the blade 208. The mounting holes 209 are slidably sleeved with the pins 205. The label rolling mechanism 300 is rotatably disposed inside the drive mechanism 100. The label rolling mechanism 300 is used to adsorb and roll the label. The drive mechanism 100 includes a housing 101. Two reducer bases 102 are symmetrically fixedly connected to the housing 101. A reducer 103 is fixedly installed on the top of each of the two reducer bases 102. The output end of the reducer 103 is fixedly connected to the shaft 201. The motor shaft of the servo motor 104 is fixedly connected to the input end of the reducer 103. The inner casing 101 is rotatably connected to a roller 105, which drives the cutting mechanism 200 and the label rolling mechanism 300 to rotate respectively. The label can be attracted by the blade drum 301 and rolled on the outer wall of the blade drum 301.

[0038] Specifically, in this device, two servo motors 104 and a reducer 103 work together to drive the cutting mechanism 200 and the label rolling mechanism 300 to rotate, respectively. The label can be attracted by the blade drum 301 and rolled on the outer wall of the blade drum 301. When the blade 208 and the blade rest plate 309 rotate to the contact point, the label can be cut. The cutting mechanism 200 is equipped with two blades, and two blade rest plates 309 are symmetrically arranged on the outer wall of the blade drum 301. Thus, the two can perform two cutting operations in one rotation, which helps to improve the cutting efficiency of materials such as hot melt labels, pearl film, and paper-plastic composite film.

[0039] When disassembling the blade, the two cylinders 212 in the connecting housing 202 can drive the pressure blade rotating seat 210 to rotate outward, so that the end of the pressure blade rotating seat 210 no longer presses the blade 208, and at the same time expands the installation space of the blade 208. Then the old blade can be removed from the pin 205, so that the blade 208 can be removed without the need to use tools to remove the screw. When installing the new blade 208, the mounting hole 209 on the blade 208 can be aligned with the pin 205 and the blade 208 can be pushed to abut against the abutment plate 207.

[0040] Example 1

[0041] like Figure 4-8 As shown, in this embodiment, a pressure knife rotating seat 210 is rotatably connected inside the connecting shell 202. The end of the pressure knife rotating seat 210 presses against the blade 208. Two connecting seats 211 are symmetrically fixedly connected to the inner wall of the pressure knife rotating seat 210. A cylinder 212 is rotatably connected to each of the two connecting seats 211, and the other end of the two cylinders 212 is rotatably connected to the connecting shell 202. Two connecting plates 213 are symmetrically rotatably connected to the inner wall of the pressure knife rotating seat 210. A rack plate 214 is rotatably connected to the other end of each of the two connecting plates 213. A limiting rod 215, which is fixedly connected to the connecting shell 202, is slidably sleeved in the rack plate 214. Two toothed plates 214 are meshed with toothed pinions 216 on one side, and a positioning shaft 217 is fixedly connected between the two toothed pinions 216. A toothed plate 218 is meshed with one side of the toothed pinion 216, and a pusher pin 219 is fixedly connected between the ends of the two toothed plates 218. Two round rods 220 that are slidably connected to the connecting shell 202 are fixedly connected to the side wall of the pusher pin 219. A rubber pad 222 is slidably inserted into the pusher pin 219. When the blade 208 cuts, the pressure generated is buffered by the rubber pad 222, thus reducing the hard extrusion force on the blade 208 and reducing the noise of cutting. The blade 208 abuts against the rubber pad 222, and a blade pad 221 is provided on one side of the rubber pad 222.

[0042] In this embodiment, cylinder 212 drives the pressure knife rotating seat 210 to rotate. While rotating, it drives rack plate one 214 to slide on limit rod 215 via connecting plate 213. Rack plate one 214 drives rack column 216 to rotate, thereby driving rack plate two 218 to move in the opposite direction to rack plate one 214. Therefore, rack plate two 218 drives push column 219 to push the blade 208, thus exposing the blade 208 to the outside and causing the sidewall of the blade 208 to be pressed against the rubber pad 222 in push column 219. This buffers the pressure generated by the blade 208 during cutting, thus preventing the blade 208 from being exposed. The rigid extrusion pressure on the blade 208 is reduced, and the noise of cutting the label is also reduced. Different specifications of blades 208 may have different blade head distances. By inserting different blade shims 221 into the push column 219, the optimal position between the blade 208 and the blade rest plate 309 is achieved. The blade 208 and the blade rest plate 309 are not adjusted to the theoretical value through threads. Therefore, even experienced engineers can complete the installation and adjustment of the blade 208, which also improves the installation speed of the blade 208. Since the blade 208 is pressed by the pressure rotating seat 210 supported by the cylinder 212, the cylinder 212 has a certain buffering effect when cutting the label, thereby further reducing noise.

[0043] Example 2

[0044] like Figure 9 As shown, in this embodiment, the label rolling mechanism 300 includes a blade drum 301. A hollow shaft 302, which is fixedly connected to the output end of the servo motor 104, is fixedly connected to the center of the blade drum 301. A plurality of adsorption holes 303, which are connected to the interior of the hollow shaft 302, are circumferentially and evenly opened on the outer wall of the blade 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 blade drum 301 and is pulled and rolled by it. A round seat 305 is rotatably connected to the bottom end of the hollow shaft 302. An input pipe of a vacuum pump 306 is fixedly connected to the outer wall of the round seat 305.

[0045] In specific implementation, multiple adsorption holes 303 are provided in the blade drum 301. When the blade drum 301 rotates, the hollow shaft 302 and the multiple adsorption holes 303 are connected. When the air pump 306 draws air from the hollow shaft 302, a negative pressure state can be maintained between the adsorption holes 303 and the label. In this way, the label is adsorbed on the surface of the blade drum 301 and is pulled and rolled by it, ensuring the neatness of the cut label. Grooves are provided between the adsorption holes 303 of different layers to make the airflow smoother and prevent the label from bulging.

[0046] Example 3

[0047] like Figure 10-12As shown, in this embodiment, the outer wall of the blade drum 301 is symmetrically provided with arc-shaped grooves 304, and an arc-shaped column 307 is slidably embedded in the arc-shaped groove 304. A blade pillow seat 308 is fixedly connected to one side of the arc-shaped column 307, and a blade pillow plate 309 is slidably inserted into the blade pillow seat 308. Compression springs 310 are fixedly connected to both ends of the arc-shaped column 307, and a baffle 311 is fixedly connected to the arc-shaped groove 304. The baffle 311 is slidably connected to the arc-shaped column 307. A traction rope 313 is fixedly connected to the end of the arc-shaped column 307. A fixed pulley 312 is wound around the traction rope 313. The fixed pulley 312 is rotatably connected to the knife drum 301. A winding wheel 314 is fixedly connected to the other end of the traction rope 313. A ratchet 315 is fixedly connected to the top of the winding wheel 314. Multiple fan blades 316 are fixedly connected to the bottom of the ratchet 315 at equal intervals in a ring. An air jet column 317 is provided on one side of the ratchet 315. A fixed pipe 322 is fixedly connected to the end of the air jet column 317. A solenoid valve 323 is fixedly installed on the outside of the fixed pipe 322. A rotating pipe 324 is fixedly connected to the end of the fixed pipe 322. An air storage tank 325 is rotatably connected to the bottom end of the rotating pipe 324. A locking tooth block 318 is engaged on one side of the ratchet 315. The locking tooth block 318 is used to limit the ratchet 315 and prevent the ratchet 315 and the winding wheel 314 from rotating in opposite directions under the pull of the traction rope 313. An adjusting column 320 is fixedly connected in the locking tooth block 318. The top of the adjusting column 320 is rotatably connected to a limit seat 319. A torsion spring 321 is fixedly connected between the top of the locking tooth block 318 and the limit seat 319.

[0048] In practice, when dents appear on the surface of the blade rest plate 309 after prolonged use, the solenoid valve 323 can be briefly opened. This allows high-pressure air from the air reservoir 325 to be delivered to the jet column 317 and ejected. Under the action of air pressure, the fan blade 316 and ratchet 315 rotate once. Then, the ratchet 315 synchronously drives the winding wheel 314 to rotate once. The winding wheel 314 winds the traction rope 313 once, allowing one end of the traction rope 313 to slide the arc-shaped column 307 a short distance in the arc-shaped groove 304. This adjusts the position of the blade rest seat 308 and the blade rest plate 309, thereby changing the contact position between the blade 208 and the blade rest plate 309. This avoids the impact of dents on the marking operation. Furthermore, the automatic adjustment speed of the blade rest plate 309 is fast, eliminating the need for manual adjustment by stopping the machine, thus not affecting the marking efficiency.

[0049] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-rotation label cutting device, characterized in that, include: The drive mechanism is used to drive the cutter assembly and the blade rest assembly to rotate; The cutting mechanism is rotatably mounted inside the drive mechanism. The cutting mechanism is used for the installation and removal of the cutting knife. The cutting mechanism includes a shaft, two connecting shells are symmetrically fixedly connected to the outer wall of the shaft, and mounting seats are fixedly connected to the side walls of the two connecting shells. Two limiting grooves are symmetrically opened inside the mounting seats, and pins are slidably embedded in the two limiting grooves. A contact plate is fixedly connected between the two pins, and a return spring is fixedly connected to the outer wall of the two pins. A blade is provided on one side of the contact plate, and two mounting holes are symmetrically opened in the blade. The mounting holes are slidably sleeved with the pins. The label rolling mechanism is rotatably located inside the drive mechanism and is used to pick up and roll up labels. The inside of the connecting shell is rotatably connected to a pressure knife rotating seat. The end of the pressure knife rotating seat is pressed against the blade. Two connecting seats are symmetrically fixed on the inner wall of the pressure knife rotating seat. A cylinder is rotatably connected to each of the two connecting seats. The other end of the two cylinders is rotatably connected to the connecting shell. Two connecting plates are symmetrically rotatably connected to the inner wall of the pressure knife rotating seat. The other end of each connecting plate is rotatably connected to a rack plate. A limiting rod that is fixedly connected to the connecting shell is slidably sleeved in the rack plate. A toothed column is meshed with one side of each rack plate. A positioning shaft is fixedly connected between the two toothed columns. A rack plate is meshed with one side of the toothed column. A push column is fixedly connected between the ends of the two rack plates. Two round rods that are slidably connected to the connecting shell are fixedly connected to the side wall of the push column. A rubber pad is slidably inserted into the push column. The blade abuts against the rubber pad. A blade pad is provided on one side of the rubber pad. The label rolling mechanism includes a blade drum. Symmetrical arc-shaped grooves are formed on the outer wall of the blade drum. An arc-shaped column is slidably embedded in the arc-shaped groove. A traction rope is fixedly connected to the end of the arc-shaped column. A fixed pulley is wound around the traction rope and rotatably connected to the blade drum. A take-up wheel is fixedly connected to the other end of the traction rope. A ratchet is fixedly connected to the top of the take-up wheel. Multiple fan blades are fixedly connected at equal intervals in a ring at the bottom of the ratchet. An air jet is provided on one side of the ratchet. A fixed pipe is fixedly connected to the end of the air jet. A solenoid valve is fixedly installed on the outside of the fixed pipe. A rotating pipe is fixedly connected to the end of the fixed pipe. An air storage tank is rotatably connected to the bottom end of the rotating pipe.

2. The dual-rotation label cutting device according to claim 1, characterized in that, The drive mechanism includes a housing, on which two reducer bases are symmetrically fixedly connected. A reducer is fixedly installed on the top of each reducer base. The output end of the reducer is fixedly connected to the shaft, and the input end of the reducer is fixedly connected to the motor shaft of the servo motor.

3. The dual-rotation label cutting device according to claim 2, characterized in that, The outer casing is internally connected to a rotating roller.

4. The dual-rotation label cutting device according to claim 1, characterized in that, A hollow shaft is fixedly connected to the output end of a servo motor at the center of the blade drum. Multiple suction holes that communicate with the inside of the hollow shaft are equidistantly opened in a ring on the outer wall of the blade drum. A round seat is rotatably connected to the bottom end of the hollow shaft, and the input pipe of a vacuum pump is fixedly connected to the outer wall of the round seat.

5. A dual-rotation label cutting device according to claim 4, characterized in that, A blade rest seat is fixedly connected to one side of the arc-shaped column, and a blade rest plate is slidably inserted into the blade rest seat. Compression springs are fixedly connected to both ends of the arc-shaped column, and a baffle is fixedly connected to the arc-shaped groove. The baffle is slidably connected to the arc-shaped column.

6. The dual-rotation label cutting device according to claim 1, characterized in that, A locking tooth block is engaged on one side of the ratchet gear. An adjusting column is fixedly connected in the locking tooth block. A limit seat is rotatably connected to the top of the adjusting column. A torsion spring is fixedly connected between the top of the locking tooth block and the limit seat.

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