Automatic feeding and die cutting device for electronic cigarette atomizer heating wire

By designing the automatic feeding die cutting device of the heating wire of electronic cigarette atomizer, the automatic cutting and separation of the heating wire pins is realized, and the problems of low manual cutting efficiency and poor product consistency in the prior art are solved, and the production efficiency and product quality are improved.

CN222919540UActive Publication Date: 2025-05-30DONGGUAN CONVEY TECH CO LTD
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Patent Information

Application Number
CN202421563989.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-05-30
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

In the prior art, the cutting process of the electronic cigarette heating wire requires manual pulling and cutting, resulting in poor problems such as inconsistent sizes and deformation, and low production efficiency.

Method used

An automatic feeding die cutting device for heating wires of electronic cigarette atomizer is designed, including a feeding device, punching mechanism, positioning mechanism, die cutting mechanism and cutting mechanism. Through the coordinated work of these devices, the automatic cutting and separation of the pins of the heating wires are realized.

Benefits of technology

The device can automatically cut the heating wire pins in batches and separate them from the tape, solving problems such as low manual cutting efficiency, inconsistent size, deformation, etc., and improve product consistency and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic feeding and die-cutting device for a heating wire of an electronic cigarette atomizer, belongs to the technical field of production and assembly of the electronic cigarette atomizer, and solves the problem of low working efficiency of cutting the heating wire in the prior art. The die cutting device comprises a feeding device used for installing a heating wire tray, a cutting table is arranged on one side of the feeding device, a punching mechanism used for cutting a heating wire pin is arranged on the cutting table, a positioning mechanism used for positioning a material belt is arranged between the punching mechanism and the feeding device, and a cutting mechanism used for cutting the heating wire pin is arranged on the cutting table. A die cutting mechanism used for separating heating wire pins is arranged on one side of the punching mechanism, and a cutting mechanism used for cutting waste material belts is arranged on one side of the die cutting mechanism. According to the automatic feeding and die cutting device for the electronic cigarette atomizer heating wire, the consistency of products is guaranteed, the heating wire can be automatically separated from a material belt, the product quality is effectively improved, and meanwhile the production efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of production and assembly of electronic cigarette atomizers, in particular to an automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer. Background Art

[0002] An electronic cigarette is an electronic product that imitates a cigarette, having the same appearance, smoke, taste and feeling as a cigarette. The heating wire of an electronic cigarette is an important component inside the electronic cigarette. During the processing of the heating wire of the electronic cigarette, it is necessary to cut the pins of the heating wire.

[0003] At present, the pins of the heating wire are wound on a reel along with the tape. When it is necessary to cut the pins of the heating wire, the tape needs to be pulled out from the reel. Since the previous tape has always been in a wound state, it needs to be pulled out and cut later to form a finished heating wire of a preset size. In this process, it is necessary to pull and cut at the same time, and there is no positioning device, resulting in difficult accurate control of the length of the pins of the heating wire cut manually, and there will be poor problems such as inconsistent dimensions and deformation, so that the total resistance of the heating wire segment is difficult to be accurately controlled, the consistency of the produced products is poor, and the production efficiency is low. In order to meet the market demand, although there are some automatic cutting devices for heating wires on the market, such devices can only cut the heating wires and cannot separate the heating wires from the tape. Later, it is still necessary to manually remove them one by one, and the production efficiency still cannot meet the large-scale production demand. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer aiming at the above deficiencies of the prior art, which can ensure the consistency of products, can automatically separate the heating wire from the tape, effectively improve the product quality while improving the production efficiency, and has the characteristics of convenient use and strong practicability.

[0005] The technical scheme adopted by the utility model is: an automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer, which includes a feeding device for installing a heating wire reel. One side of the feeding device is provided with a cutting table, and a punching mechanism for cutting the pins of the heating wire is arranged on the cutting table. A positioning mechanism for positioning the tape is arranged between the punching mechanism and the feeding device. A die-cutting mechanism for separating the pins of the heating wire is arranged on one side of the punching mechanism. A cutting mechanism for cutting the waste tape is arranged on one side of the die-cutting mechanism. A tape pulling device for pulling and feeding the tape is arranged between the die-cutting mechanism and the punching mechanism and the cutting mechanism.

[0006] As a further improvement, the loading device includes a support frame, a mounting plate, a first drive motor and a mounting shaft for mounting the material tray, the mounting plate is mounted above the support frame, the first drive motor is mounted on the mounting plate, and the mounting shaft is connected to the output end of the first drive motor.

[0007] Furthermore, a slide rail is provided above the mounting plate, a slider is provided on the slide rail, a pressing rod for pressing the material belt is provided on the slider, and a plurality of tensioning wheels for tensioning the material belt are provided at the lower end of the support frame.

[0008] Furthermore, the punching mechanism includes a first mounting seat, a second mounting seat, an upper cutter, a lower cutter and a first cylinder. The first mounting seat and the second mounting seat are respectively arranged on the upper and lower sides of the cutting table. The first mounting seat and the second mounting seat are both provided with a first cylinder. The upper cutter and the lower cutter are respectively arranged at the output ends of the first cylinder on the upper and lower sides. A feeding port is opened on the cutting table, and the lower cutter moves through the feeding port.

[0009] Furthermore, the positioning mechanism includes a third mounting seat, a third cylinder and a clamping plate, the third mounting seat is mounted on the cutting table, the third cylinder is mounted on the third mounting seat, and the clamping plate is connected to the output end of the third cylinder.

[0010] Furthermore, the die-cutting mechanism includes a support platform, a stamping die for separating the heating wire pins, and a material receiving device, the stamping die is arranged on the support platform, the material receiving device is arranged below the stamping die, the material receiving device includes a base, a fourth cylinder and a material receiving plate, the fourth cylinder is installed on the base, and the material receiving plate is connected to the output end of the fourth cylinder.

[0011] Furthermore, the stamping die comprises a bottom plate, the bottom plate is provided with a mounting groove, and the material strip movably passes through the mounting groove.

[0012] Furthermore, the material pulling device includes a support seat, a sliding plate, a second drive motor, and a rotating wheel. The two sides of the sliding plate are slidably installed on the support seat through slide rails, the second drive motor is installed on the sliding plate, and the output end of the second drive motor is connected to the rotating wheel through the sliding plate. The outer circle of the rotating wheel is provided with multiple cylinders for pulling the material belt.

[0013] Furthermore, a bearing plate is provided on the top of the sliding plate, a clearance groove is opened on the bearing plate, and the cylinder above the rotating wheel passes through the clearance groove.

[0014] Furthermore, the cutting mechanism includes a fourth mounting base, a fifth cylinder, and a cutting knife. The fourth mounting base is installed on the frame, the fifth cylinder is installed on the fourth mounting base, and the cutting knife is connected to the output end of the fifth cylinder.

[0015] Beneficial effects

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] In an automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer of the present utility model, after the material tape comes out of the material tray, it sequentially passes through a tensioning wheel, a cutting table, a carrier plate of the material pulling device, a bottom plate of the stamping die, and a cutting mechanism, and finally passes through the fourth mounting base of the cutting mechanism. When the entire device is running, the material tape moves under the traction of the material pulling device and the pushing of the feeding device. When the heating wire pins on the material tape move to the cutting table, the third cylinder of the positioning mechanism pushes the pressing plate downward to press the material tape, preventing the material tape from moving during the cutting by the punching and cutting mechanism. After the pressing work is completed, the first cylinder below pushes the lower cutting knife to move upward through the material discharging port to support the material tape, and then the first cylinder above pushes the upper cutting knife downward. Under the cooperation of the upper cutting knife and the lower cutting knife, the heating wire pins are quickly cut. After the cutting is completed, the heating wire pins follow the material tape and move forward. When reaching the stamping die of the die-cutting mechanism, under the action of the punching head of the stamping die, the heating wire pins are quickly punched off the material tape and then fall onto the receiving plate of the material receiving device. In this way, heating wire pins with consistent shapes can be quickly obtained. The remaining waste material tape moves forward and is cut into small sections by the cutting knife of the cutting mechanism for collection. By using this device, the heating wire pins can be automatically and batch cut simultaneously, and after the cutting is completed, the heating wire pins can be automatically separated from the material tape in batches, replacing manual operations, effectively improving production efficiency, and solving the problems of low manual cutting efficiency, inconsistent dimensions, deformation, etc. It has the characteristics of convenient use and wide application range. Description of the drawings

[0018] Figure 1 It is a front view three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 It is a rear view three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 3 It is a front view structure schematic diagram of the present utility model;

[0021] Figure 4 It is a structure enlarged schematic diagram of the punching and cutting mechanism and the positioning mechanism in the present utility model;

[0022] Figure 5 It is a structure enlarged schematic diagram of the material pulling device in the present utility model;

[0023] Figure 6 It is an enlarged structural schematic diagram of the die-cutting mechanism in the present utility model;

[0024] Figure 7 It is an enlarged structural schematic diagram of the stamping die in the present utility model;

[0025] Figure 8 It is an enlarged structural schematic diagram of the cutting mechanism in the present utility model;

[0026] Figure 9 It is an enlarged structural schematic diagram of the strip in the present utility model.

[0027] Wherein: 1 - loading device, 2 - punching mechanism, 3 - positioning mechanism, 4 - strip pulling device, 5 - material receiving device, 6 - cutting mechanism, 7 - cutting table, 8 - stamping die, 9 - bottom plate, 10 - support table, 11 - support frame, 12 - mounting plate, 13 - first driving motor, 14 - mounting groove, 15 - strip, 16 - heating wire coil, 17 - slide rail, 18 - slider, 19 - pressure bar, 20 - tensioning wheel, 21 - first mounting seat, 22 - first cylinder, 22 - first cylinder, 23 - upper cutting knife, 24 - lower cutting knife, 25 - material discharging port, 26 - second mounting seat, 31 - third mounting seat, 32 - third cylinder, 33 - pressing plate, 41 - support seat, 42 - sliding plate, 43 - second driving motor, 44 - rotating wheel, 45 - cylinder, 46 - relief groove, 47 - bearing plate, 51 - material receiving plate, 52 - fourth cylinder, 53 - base, 61 - fourth mounting seat, 62 - fifth cylinder, 63 - cutting knife. Specific embodiments

[0028] The following further describes the present utility model with reference to the specific embodiments in the drawings.

[0029] Refer to Figures 1-9As shown in the figure, an automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer of the present utility model includes a feeding device 1 for installing a heating wire coil. There is a cutting table 7 on one side of the feeding device 1. An punching mechanism 2 for cutting the pins of the heating wire is provided on the cutting table 7. A positioning mechanism 3 for positioning the material tape 15 is provided between the punching mechanism 2 and the feeding device 1. A die-cutting mechanism for separating the pins of the heating wire is provided on one side of the punching mechanism 2. A cutting mechanism 6 for cutting the waste tape is provided on one side of the die-cutting mechanism. Pulling tape devices 4 for pulling the material tape 15 are provided between the die-cutting mechanism and the punching mechanism 2 and the cutting mechanism 6. After the material tape 15 comes out of the heating wire coil 16, it successively passes through the tensioning wheel 20, the cutting table 7, the bearing plate 47 of the pulling tape device 4, the bottom plate 9 of the stamping die 8, and the cutting mechanism 6, and finally passes through the fourth mounting seat 61 of the cutting mechanism 6. When the entire device is running, the material tape 15 moves under the traction of the pulling tape device 4 and the push of the feeding device 1. When the pins of the heating wire on the material tape 15 move to the cutting table 7, the third air cylinder 32 of the positioning mechanism 3 pushes the pressing plate 33 downward to press the material tape 15, preventing the material tape from moving during the cutting by the punching mechanism 2. After the pressing work is completed, the first air cylinder 22 below pushes the lower cutting knife 24 to move upward through the material discharging port 25 to support the material tape 15. Then the first air cylinder 22 above pushes the upper cutting knife 23 downward. The pins of the heating wire are quickly cut under the cooperation of the upper cutting knife 23 and the lower cutting knife 24. The cut pins of the heating wire continue to move forward with the material tape 15. When reaching the stamping die 8 of the die-cutting mechanism, under the action of the punching head of the stamping die 8, the pins of the heating wire are quickly punched off the material tape 15 and then fall onto the receiving plate 51 of the receiving device 5. In this way, pins of the heating wire with consistent shapes can be quickly obtained. The remaining waste tape moves forward and is cut into small sections by the cutting knife 63 of the cutting mechanism 6 for collection. By using this device, the pins of the heating wire can be automatically batch-cut simultaneously, and after cutting, the pins of the heating wire can be automatically batch-separated from the material tape 15, replacing manual operation, effectively improving production efficiency, and solving the problems of low manual cutting efficiency, inconsistent dimensions, deformation and other defects.

[0030] Specifically, the feeding device 1 includes a support frame 11, a mounting plate 12, a first driving motor 13 and a mounting shaft for installing the coil. The mounting plate 12 is installed above the support frame 11. The first driving motor 13 is installed on the mounting plate 12. The mounting shaft is connected to the output end of the first driving motor 13. The first driving motor 13 rotates, driving the mounting shaft to rotate together, so that the heating wire coil 16 rotates together to realize the pushing and feeding of the material tape 15.

[0031] Preferably, a slide rail 17 is provided above the mounting plate 12. A slider 18 is arranged on the slide rail 17, and a pressure bar 19 for pressing the strip 15 is arranged on the slider 18. A plurality of tension wheels 20 for tensioning the strip 15 are arranged at the lower end of the support frame 11. Under the action of gravity, the slider 18 drives the pressure bar 19 to move downward. When the strip 15 decreases, the pressure bar 19 can always press the strip 15, making the tension of the strip 15 better and not easily getting disordered.

[0032] Further, the punching mechanism 2 includes a first mounting seat 21, a second mounting seat 26, an upper cutting knife 23, a lower cutting knife 24 and a first air cylinder 22. The first mounting seat 21 and the second mounting seat 26 are respectively arranged on the upper and lower sides of the cutting table 7. First air cylinders 22 are arranged on both the first mounting seat and the second mounting seat 26. The upper cutting knife 23 and the lower cutting knife 24 are respectively arranged at the output ends of the first air cylinders 22 on the upper and lower sides. A blanking port 25 is formed on the cutting table 7, and the lower cutting knife 24 movably passes through the blanking port 25. The first air cylinder 22 pushes the lower cutting knife 24 to move upward through the blanking port 25, so as to support the strip 15. Then the first air cylinder 22 above pushes the upper cutting knife 23 to move downward. Under the cooperation of the upper cutting knife 23 and the lower cutting knife 24, the pins of the heating wire are quickly cut, and multiple pins of the heating wire can be cut simultaneously.

[0033] Further, the positioning mechanism 3 includes a third mounting seat 31, a third air cylinder 32 and a pressing plate 33. The third mounting seat 31 is installed on the cutting table 7, the third air cylinder 32 is installed on the third mounting seat 31, and the pressing plate 33 is connected to the output end of the third air cylinder 32. The third air cylinder 32 pushes the pressing plate 33 to move downward, so as to press the strip 15 and prevent the strip 15 from moving during the cutting by the punching mechanism 2, thereby improving the cutting quality.

[0034] Further, the die-cutting mechanism includes a support table 10, a stamping die 8 for separating the pins of the heating wire and a material receiving device 5. The stamping die 8 is arranged on the support table 10, and the material receiving device 5 is arranged below the stamping die 8. The material receiving device 5 includes a base 53, a fourth air cylinder 52 and a material receiving plate 51. The fourth air cylinder 52 is installed on the base 53, and the material receiving plate 51 is connected to the output end of the fourth air cylinder 52. The stamping die 8 includes a bottom plate 9, and an installation groove 14 is provided on the bottom plate 9. The strip 15 movably passes through the installation groove 14. The strip 15 passes through the installation groove 14 of the bottom plate 9. Under the action of the air cylinder of the stamping die 8, the stamping head moves downward, so as to punch the pins of the heating wire away from the strip 15 and then fall onto the material receiving plate 51 of the material receiving device 5, thereby quickly obtaining pins of the heating wire with consistent shapes.

[0035] Further, the tape pulling device 4 includes a support base 41, a sliding plate 42, a second drive motor 43, and a rotating wheel 44. The two sides of the sliding plate 42 are slidably mounted on the support base 41 through slide rails. The second drive motor 43 is mounted on the sliding plate 42. The output end of the second drive motor 43 passes through the sliding plate 42 and is connected to the rotating wheel 44. A plurality of cylinders 45 for pulling the tape 15 are provided on the outer circumference of the rotating wheel 44. The round holes on the tape 15 are sleeved on the cylinders 45. When the second drive motor 4 rotates to drive the rotating wheel 44, during the rotation of the rotating wheel 44, the cylinders 45 pull the tape 15 to move forward, thereby realizing the pulling of the tape 15.

[0036] Further, a bearing plate 47 is provided on the top of the sliding plate 42. A relief groove 46 is formed on the bearing plate 47. The cylinder 45 above the rotating wheel 44 passes through the relief groove 46. The bearing plate 47 plays a supporting role, making the operation of the tape 15 more stable.

[0037] Further, the cutting mechanism 6 includes a fourth mounting base 61, a fifth cylinder 62, and a cutting knife 63. The fourth mounting base 61 is mounted on the frame. The fifth cylinder 62 is mounted on the fourth mounting base 61. The cutting knife 63 is connected to the output end of the fifth cylinder 62. The fifth cylinder 62 drives the cutting knife 63 to move downward, so that the remaining waste tape is cut into small sections under the action of the cutting knife 63 for collection.

[0038] When the automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer in this embodiment is in use, the tape 15 moves under the traction of the tape pulling device 4 and the pushing of the feeding device 1. When the heating wire pins on the tape 15 move to the cutting table 7, the third cylinder 32 of the positioning mechanism 3 pushes the pressing plate 33 downward to press the tape 15, preventing the tape from moving during the cutting by the punching and cutting mechanism 2. After the pressing work is completed, the first cylinder 22 below pushes the lower cutting knife 24 to move upward through the material outlet 25 to support the tape 15. Then the first cylinder 22 above pushes the upper cutting knife 23 downward. The heating wire pins are quickly cut under the cooperation of the upper cutting knife 23 and the lower cutting knife 24. The cut heating wire pins continue to move forward with the tape 15. When reaching the stamping die 8 of the die-cutting mechanism, under the action of the punching head of the stamping die 8, the heating wire pins are quickly punched off the tape 15 and then fall onto the receiving plate 51 of the receiving device 5. In this way, heating wire pins with consistent shapes can be quickly obtained. The remaining waste tape moves forward and is cut into small sections under the action of the cutting knife 63 of the cutting mechanism 6 for collection. The automatic feeding and die-cutting device for the heating wire of an electronic cigarette atomizer of the present utility model ensures the consistency of the products, can automatically separate the heating wire from the tape, effectively improves the product quality while improving the production efficiency, and has the characteristics of convenient use and strong practicability.

[0039] The above are only the preferred embodiments of the present utility model. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several modifications and improvements can be made, which will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. An automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer, characterized in that: The invention comprises a feeding device (1) for installing a heating wire material disc (16), a cutting table (7) is provided on one side of the feeding device (1), a punching mechanism (2) for cutting the heating wire pins is provided on the cutting table (7), a positioning mechanism (3) for positioning the material strip (15) is provided between the punching mechanism (2) and the feeding device (1), a die-cutting mechanism for separating the heating wire pins is provided on one side of the punching mechanism (2), a cutting mechanism (6) for cutting the waste material strip is provided on one side of the die-cutting mechanism, and a material strip pulling device (4) for pulling the material strip (15) is provided between the die-cutting mechanism and the punching mechanism (2) and the cutting mechanism (6).

2. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The loading device (1) comprises a support frame (11), a mounting plate (12), a first drive motor (13) and a mounting shaft for mounting a material tray, wherein the mounting plate (12) is mounted above the support frame (11), the first drive motor (13) is mounted on the mounting plate (12), and the mounting shaft is connected to the output end of the first drive motor (13).

3. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 2, characterized in that: A slide rail (17) is provided above the mounting plate (12), a slider (18) is provided on the slide rail (17), a pressing rod (19) for pressing the material belt (15) is provided on the slider (18), and a plurality of tensioning wheels (20) for tensioning the material belt (15) are provided at the lower end of the support frame (11).

4. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The punching mechanism (2) comprises a first mounting seat (21), a second mounting seat (26), an upper cutter (23), a lower cutter (24) and a first cylinder (22); the first mounting seat (21) and the second mounting seat (26) are respectively arranged on the upper and lower sides of the cutting table (7); the first mounting seat (21) and the second mounting seat (26) are both provided with a first cylinder (22); the upper cutter (23) and the lower cutter (24) are respectively arranged at the output ends of the first cylinder (22) on the upper and lower sides; a material discharge port (25) is provided on the cutting table (7); and the lower cutter (24) movably passes through the material discharge port (25).

5. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The positioning mechanism (3) comprises a third mounting seat (31), a third cylinder (32) and a clamping plate (33); the third mounting seat (31) is mounted on the cutting table (7); the third cylinder (32) is mounted on the third mounting seat (31); and the clamping plate (33) is connected to the output end of the third cylinder (32).

6. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The die-cutting mechanism comprises a support platform (10), a stamping die (8) for separating the heating wire pins, and a material receiving device (5); the stamping die (8) is arranged on the support platform (10); the material receiving device (5) is arranged below the stamping die (8); the material receiving device (5) comprises a base (53), a fourth cylinder (52) and a material receiving plate (51); the fourth cylinder (52) is installed on the base (53); and the material receiving plate (51) is connected to the output end of the fourth cylinder (52).

7. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 6, characterized in that: The stamping die (8) comprises a bottom plate (9), a mounting groove (14) is provided on the bottom plate (9), and the material strip (15) movably passes through the mounting groove (14).

8. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The material pulling belt device (4) includes a support seat (41), a sliding plate (42), a second driving motor (43) and a rotating wheel (44). The two sides of the sliding plate (42) are slidably mounted on the support seat (41) through slide rails. The second driving motor (43) is mounted on the sliding plate (42). The output end of the second driving motor (43) passes through the sliding plate (42) and is connected to the rotating wheel (44). A plurality of cylinders (45) for pulling the material belt (15) are provided on the outer circle of the rotating wheel (44).

9. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 8, characterized in that: A bearing plate (47) is provided on the top of the sliding plate (42), a clearance groove (46) is provided on the bearing plate (47), and the cylinder (45) above the rotating wheel (44) passes through the clearance groove (46).

10. The automatic feeding and die-cutting device for heating wire of an electronic cigarette atomizer according to claim 1, characterized in that: The cutting mechanism (6) comprises a fourth mounting seat (61), a fifth cylinder (62) and a cutting knife (63); the fourth mounting seat (61) is mounted on a frame; the fifth cylinder (62) is mounted on the fourth mounting seat (61); and the cutting knife (63) is connected to an output end of the fifth cylinder (62).