Slitting assembly and packaging paper cutting device

Abstract

The utility model relates to the technical field of cutting devices, and discloses a slitting assembly and a packaging paper cutting device. The slitting assembly comprises a bottom plate, a first supporting plate and a second supporting plate are installed at the left end and the right end of the top of the bottom plate, a cutting frame is arranged between the first supporting plate and the second supporting plate, a first conveying belt is arranged in the first supporting plate, and a second conveying belt is arranged in the second supporting plate. A first conveying belt is arranged in the first supporting plate, a motor matched with the first conveying belt is arranged at the rear end of the first supporting plate, a limiting mechanism and a cutting knife are installed on the cutting frame, a clamping mechanism is arranged on the cutting knife, a second conveying belt is arranged in the second supporting plate, and a motor matched with the second conveying belt is arranged at the rear end of the second supporting plate. A collecting box is arranged at the left end of the second supporting plate. Through the design of the connecting device, when paper products with different thicknesses are placed, the first spring in the connecting block moves in the opposite direction along the connecting shaft to enable the paper products to pass through, the situation that the thick paper products are damaged when entering the slitting mechanism is avoided, and therefore the production quality of the slitting machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a slitting component and a packaging paper cutting device. Background Technology

[0002] In the packaging industry, slitting components and cutting devices are indispensable equipment, playing a vital role in precisely cutting large rolls of packaging materials into the required sizes.

[0003] However, existing slitting components and cutting devices are often complex in structure, with high installation and maintenance costs. Furthermore, in actual operation, insufficient stability of the slitting mechanism can easily lead to decreased cutting accuracy, affecting product quality. At the same time, these components lack flexibility in adapting to packaging materials of different sizes and materials, failing to meet diverse production needs. Utility Model Content

[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides a slitting component and packaging paper cutting device, which has the advantages of good adaptability and good clamping effect, and solves the problems of poor adaptability and poor clamping effect.

[0005] (II) Technical Solution: To achieve the above-mentioned objectives of good adaptability and good clamping effect, this utility model provides the following technical solution:

[0006] This utility model provides a slitting assembly, including a housing mounted on top of a base plate. The front end of the housing has a rod-changing hole. Two connecting devices are mounted on both the front and rear ends of the housing. A motor connected to a roller is mounted on a connecting plate at the rear end of the housing. Two rollers, one upper and one lower, are mounted on the connecting devices. A slitting table is installed inside the housing. A hydraulic rod is mounted on the top of the housing and connected to a slitting mechanism. The slitting table is located in the middle of the housing and also at the bottom of the slitting mechanism. The slitting table is snapped into the housing and secured with bolts.

[0007] As a preferred technical solution of this utility model, the connecting device consists of two connecting plates, two springs, two springs, two T-shaped shafts and a connecting shaft. The two connecting plates are installed together by the connecting shaft, and the two springs are installed on the two connecting plates at the points where they mate with the connecting shaft. The larger diameter of the T-shaped shaft is installed inside the housing and the other end is installed on the connecting plate. The springs are penetrated by the T-shaped shaft.

[0008] As a preferred technical solution of this utility model, the connecting shaft is I-shaped and is installed on the opposite end faces of two connecting plates. Both opposite end faces of the two connecting plates are provided with T-shaped holes that mate with the connecting shaft. The spring is installed in the T-shaped hole and is penetrated by the connecting shaft. The connecting plate is provided with a through hole that mates with the rotation of the roller. The housing is provided with a T-shaped hole that mates with the T-shaped shaft.

[0009] As a preferred embodiment of this utility model, the slitting mechanism comprises an L-shaped fixed plate, a slitting shaft, two slitting blades, a long bolt, and a movable plate. The L-shaped fixed plate has a through hole that rotatably engages with the slitting shaft. The top of the L-shaped fixed plate is connected to the movable end of a hydraulic rod. The movable plate is mounted on the L-shaped fixed plate. The two slitting blades are mounted on the slitting shaft. A motor that engages with the slitting shaft is provided on the side of the L-shaped fixed plate. The long bolt is mounted on the top of the movable plate.

[0010] As a preferred technical solution of this utility model, the movable plate is rotatably connected to the end of the L-shaped fixed plate without sides, and both the end of the L-shaped fixed plate without sides and the top of the movable plate are provided with threaded holes that cooperate with long bolts. The cutting shaft is installed between the L-shaped fixed plate and the movable plate, and the end of the movable plate near the cutting shaft is provided with a connecting hole that cooperates with the cutting shaft.

[0011] Another aspect of this utility model provides a packaging paper cutting device, which is equipped with a cutting component as described above. The packaging paper cutting device includes a base plate, and a support plate one and a support plate two are installed at the top left and right ends of the base plate. A cutting frame is provided between the support plate one and the support plate two. A conveyor belt one is provided inside the support plate one, and a motor cooperating with the conveyor belt one is provided at the rear end of the support plate one. A limit mechanism and a cutting blade are installed on the cutting frame, and a clamping mechanism is provided on the cutting blade. A conveyor belt two is provided inside the support plate two, and a motor cooperating with the conveyor belt two is provided at the rear end of the support plate two. A collection box is provided at the left end of the support plate two.

[0012] As a preferred technical solution of this utility model, the left end of the cutting frame is provided with a cutting table, and the right end of the cutting frame is provided with a connecting table that cooperates with the limiting mechanism. The bottom of the left end face of the front and rear sides of the cutting frame is provided with a square groove that cooperates with the cutting mechanism. The front and rear ends of the square groove are provided with slide rails. The top of the square groove is provided with a motor that cooperates with the cutting mechanism, and the output end of the motor is provided with a lead screw.

[0013] As a preferred technical solution of this utility model, the limiting mechanism consists of an N-shaped plate, two lead screws, two motors and two transmission plates. The transmission plates are installed at the left and right ends of the N-shaped plate. One end of the lead screw is installed on the top of the support plate and the other end passes through the connecting platform at the right end of the cutting frame. The motor is installed on the top of the connecting platform and connected to the lead screw. The N-shaped plate is located at the top of the left end of the conveyor belt.

[0014] As a preferred technical solution of this utility model, the top right end of the cutting blade is provided with two moving blocks, the two moving blocks are installed at the front and rear ends of the right side, the front and rear ends of the moving blocks are provided with sliders, and the moving blocks are provided with threaded through holes that cooperate with the lead screw.

[0015] As a preferred technical solution of this utility model, the clamping mechanism is installed at the bottom of the cutting blade, and the clamping blade is configured in a + shape to cooperate with the clamping mechanism. The clamping mechanism consists of a fixed shell, several springs, and several clamping suction cups. The cutting blade passes through the fixed shell and is clamped inside the fixed shell. The several clamping suction cups pass through the bottom of the fixed shell and are installed on the protruding parts at the left and right ends of the cutting blade. The springs are installed inside the fixed shell and are penetrated by the clamping suction cups.

[0016] (III) Beneficial Effects: Compared with the prior art, the present invention provides a slitting component and a packaging paper cutting device, which have the following beneficial effects:

[0017] This slitting assembly and packaging paper cutting device, through the design of the connecting device, allows the spring inside the connecting block to move in the opposite direction along the connecting axis when paper products of different thicknesses are placed in, preventing thicker paper products from being damaged when entering the slitting mechanism, thereby improving the production quality of the slitting machine. Through the design of the clamping mechanism, when the cutting blade moves downwards to cut the paper product, the clamping mechanism, located at the bottom of the cutting blade, allows the clamping suction cup to move downwards to the cutting position beforehand to clamp the paper product to be cut, preventing the paper product from curling during the cutting process and affecting the cutting effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structural cutting component of this utility model;

[0019] Figure 2 This is a cross-sectional view of the structural cutting component of this utility model;

[0020] Figure 3 This is a cross-sectional view of the structural connection mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection of the slitting mechanism of this utility model;

[0022] Figure 5This is a schematic diagram of the packaging paper cutting device of this utility model;

[0023] Figure 6 This is a schematic diagram showing the connection between the cutting frame and the limiting mechanism of this utility model.

[0024] Figure 7 This is a schematic diagram showing the connection between the cutting frame and the cutting blade of this utility model.

[0025] Figure 8 This is a cross-sectional view of the clamping mechanism of this utility model.

[0026] In the diagram: 1. Base plate; 2. Housing; 3. Rod changing hole; 4. Bolt; 5. Slitting mechanism; 501. L-shaped fixing plate; 502. Slitting shaft; 503. Slitting blade; 504. Movable plate; 505. Long bolt; 6. Connecting device; 601. Connecting plate; 602. T-shaped shaft; 603. Spring 2; 604. Connecting shaft; 605. Spring 1; 7. Roller; 8. Hydraulic rod; 9. Slitting table; 10. Support plate 1 11. Conveyor Belt 1; 12. Support Plate 2; 13. Conveyor Belt 2; 14. Cutting Frame; 1401. Connecting Table; 1402. Cutting Table; 15. Cutting Blade; 16. Limiting Mechanism; 1601. Rotary Motor; 1602. Screw; 1603. Rotating Plate; 1604. N-Shaped Plate; 17. Collection Box; 18. Clamping Mechanism; 1801. Fixed Shell; 1802. Spring 3; 1803. Clamping Suction Cup. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1-4 ,

[0031] This utility model provides a slitting assembly, including a housing 2, which is installed on the top of a base plate 1. The front end of the housing 2 has a rod changing hole 3. Two connecting devices 6 are installed on both the front and rear ends of the housing 2. A motor connected to a roller 7 is provided on the connecting plate 601 at the rear end of the housing 2. Two rollers 7 are installed on the connecting device 6. A slitting table 9 is installed inside the housing 2. A hydraulic rod 8 is installed on the top of the housing 2 and is connected to a slitting mechanism 5. The slitting table 9 is located in the middle of the housing 2 and is also located at the bottom of the slitting mechanism 5. The slitting table 9 is snapped into the inside of the housing 2 and fastened with bolts 4.

[0032] In this example, the connecting device 6 consists of two connecting plates 601, two springs 605, two springs 603, two T-shaped shafts 602, and a connecting shaft 604. The two connecting plates 601 are mounted together via the connecting shaft 604, and the two springs 605 are mounted on the two connecting plates 601 at the mating points with the connecting shaft 604. The larger diameter end of the T-shaped shaft 602 is mounted inside the housing 2, and the other end is mounted on the connecting plate 601. The springs 603 are penetrated by the T-shaped shaft 602.

[0033] It should be noted that the connecting device 6 can ensure the flexible movement and precise positioning of the cutting components during the cutting operation. At the same time, due to the buffering effect of the spring, the impact of vibration on the equipment accuracy is reduced, and the service life of the device is extended.

[0034] In this example, the connecting shaft 604 is I-shaped and is mounted on the opposite end faces of the two connecting plates 601. The opposite end faces of the two connecting plates 601 are provided with T-shaped holes that mate with the connecting shaft 604. The spring 605 is installed in the T-shaped hole and is penetrated by the connecting shaft 604. The connecting plate 601 is provided with a through hole that mates with the roller 7. The housing 2 is provided with a T-shaped hole that mates with the T-shaped shaft 602.

[0035] It should be noted that, through the design of the I-shaped connecting shaft 604 and the T-shaped hole, the entire structure can maintain high rigidity when bearing load, while also facilitating installation and disassembly, thus simplifying maintenance.

[0036] In this example, the slitting mechanism consists of an L-shaped fixed plate 501, a slitting shaft 502, two slitting blades 503, a long bolt 505, and a movable plate 504. The L-shaped fixed plate 501 has a through hole that rotatably engages with the slitting shaft 502. The top of the L-shaped fixed plate 501 is connected to the movable end of the hydraulic rod 8. The movable plate 504 is mounted on the L-shaped fixed plate 501. The two slitting blades 503 are mounted on the slitting shaft 502. A motor that engages with the slitting shaft 502 is provided on the side of the L-shaped fixed plate 501. The long bolt 4 is mounted on the top of the movable plate 504.

[0037] It should be noted that during the slitting process, the hydraulic rod 8 moves the slitting mechanism 5 to cut the paper products. After the cutting is completed, the hydraulic rod 8 releases pressure, and the slitting mechanism 5 rises to complete one slitting cycle.

[0038] In this example, the movable plate 504 is rotatably connected to the end of the L-shaped fixed plate 501 without sides, and both the end of the L-shaped fixed plate 501 without sides and the top of the movable plate 504 are provided with threaded holes that cooperate with the long bolts 505. The cutting shaft 502 is installed between the L-shaped fixed plate 501 and the movable plate, and the end of the movable plate 504 near the cutting shaft 502 is provided with a connecting hole that cooperates with the cutting shaft 502.

[0039] It should be noted that the movable plate 504 can be firmly fixed by rotating the long bolt 505, ensuring that it will not loosen due to vibration or pressure changes during the cutting process.

[0040] Please see Figure 5-8 ,

[0041] Another aspect of this utility model provides a packaging paper cutting device, which is equipped with the above-mentioned slitting component. The packaging paper cutting device includes a base plate 1, with a support plate 10 and a support plate 2 12 installed at the top left and right ends of the base plate 1. A cutting frame 14 is provided between the support plate 10 and the support plate 2 12. A conveyor belt 11 is provided inside the support plate 10, and a motor cooperating with the conveyor belt 11 is provided at the rear end of the support plate 10. A limiting mechanism 16 and a cutting blade 15 are installed on the cutting frame 14, and a clamping mechanism 18 is provided on the cutting blade 15. A conveyor belt 2 13 is provided inside the support plate 2 12, and a motor cooperating with the conveyor belt 2 13 is provided at the rear end of the support plate 2 12. A collection box 17 is provided at the left end of the support plate 2 12.

[0042] In this example, the left end of the cutting frame 14 is provided with a cutting table 1402, and the right end of the cutting frame 14 is provided with a connecting table 1401 that cooperates with the limiting mechanism 16. The bottom of the left end face of the front and rear sides of the cutting frame 14 is provided with a square groove that cooperates with the cutting mechanism, and the front and rear ends of the square groove are provided with slide rails. The top of the square groove is provided with a motor that cooperates with the cutting mechanism, and the output end of the motor is provided with a lead screw.

[0043] It should be noted that controlling the cutting blade 15 with a motor ensures the automation and precision of the cutting process.

[0044] In this example, the limiting mechanism 16 consists of an N-shaped plate 1604, two screws 1602, two rotary motors 1601, and two rotating plates 1603. The rotating plates 1603 are installed at the left and right ends of the N-shaped plate 1604. One end of the screw 1602 is installed on the top of the support plate 10, and the other end passes through the connecting platform 1401 at the right end of the cutting frame 14. The rotary motors 1601 are installed on the top of the connecting platform 1401 and connected to the screws 1602. The N-shaped plate 1604 is located at the top left end of the conveyor belt 11.

[0045] It should be noted that the support plate 10 is fixed to the top of the base plate 1, providing a base for the installation and support of the screw 1602. The connecting platform 1401 is located at the right end of the cutting frame 14 and is used to connect the cutting frame 14 and the limiting mechanism 16.

[0046] In this example, the top right end of the cutting blade 15 is provided with two moving blocks. The two moving blocks are installed at the front and rear ends of the right side. The front and rear ends of the moving blocks are provided with sliders, and the moving blocks are provided with threaded through holes that cooperate with the lead screw.

[0047] It should be noted that the position of the cutting blade 15 can be precisely controlled by the cooperation of the moving block and the lead screw, thereby achieving high-precision cutting.

[0048] In this example, the clamping mechanism is installed at the bottom of the cutting blade 15, and the clamping blade is configured in a + shape to cooperate with the clamping mechanism. The clamping mechanism consists of a fixed shell 1801, several springs 1802, and several clamping suction cups 1803. The cutting blade 15 passes through the fixed shell 1801 and is clamped inside the fixed shell 1801. Several clamping suction cups 1803 pass through the bottom of the fixed shell 1801 and are installed on the protruding parts at the left and right ends of the cutting blade 15. The springs 1802 are installed inside the fixed shell 1801 and are passed through by the clamping suction cups 1803.

[0049] It should be noted that the clamping mechanism ensures the stability of the cutting blade 15 during the cutting process. The design of the cutting blade 15 penetrating through the fixed shell 1801 allows the cutting blade 15 to extend and retract freely to adapt to different cutting needs.

[0050] In summary: When using this device, the packaging paper is first placed into the roller 7 of the slitting assembly from the right end. The roller 7 in the slitting assembly can automatically adjust the clamping force according to the thickness of the packaging paper to avoid damage. After the packaging paper enters the roller 7, it moves forward along the slitting table 9. At this time, the hydraulic rod 8 is adjusted to a suitable height, and then the motor drives the slitting blade 503 on the slitting shaft 502 to rotate, slitting the packaging paper. After slitting, the packaging paper is sent out through the roller 7 at the left end of the slitting assembly, enters the conveyor belt 11, and is transported to the cutting mechanism. On the conveyor belt 11, when the packaging paper moves to the left, the rotary motor 1601 of the limiting mechanism 16 drives the N-shaped plate 1604 downward through the screw 1602, firmly clamping the packaging paper in the N-shaped plate 1604 to prevent it from sliding back and forth on the conveyor belt. Then, the conveyor belt feeds the packaging paper into the cutting mechanism. At this time, the motor inside the cutting frame 14 controls the cutting blade 15 to move downwards, while the clamping mechanism is installed at the bottom of the cutting blade 15. The clamping suction cup 1803 first contacts the surface of the packaging paper, fixing the packaging paper and preventing it from curling. At this time, the cutting blade 15 continues to press downwards, while the spring inside the fixing shell is compressed, further clamping the packaging paper and completing the cutting operation. When the slitting mechanism 5 inside the slitting assembly malfunctions, it can be quickly maintained through the preset rod replacement hole 3 on the housing 2. The specific operation is as follows: first loosen the long bolt 505 on the top of the movable plate 504, then flip the movable plate 504 upwards to easily remove the slitting shaft 502 for repair or replacement of the slitting shaft 502 or the slitting blade 503. This design improves the ease of maintenance of the equipment and ensures the continuity and efficiency of the slitting operation.

[0051] Beneficial effects: This slitting assembly and packaging paper cutting device, through the design of the connecting device, allows the spring inside the connecting block to move in the opposite direction along the connecting axis when paper products of different thicknesses are placed in, preventing thicker paper products from being damaged when entering the slitting mechanism, thereby improving the production quality of the slitting machine. Through the design of the clamping mechanism, when the cutting blade moves downward to cut the paper product, the clamping mechanism, located at the bottom of the cutting blade, allows the clamping suction cup to move downward to the cutting position beforehand to clamp the paper product to be cut, preventing the paper product from curling during the cutting process and affecting the cutting effect.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slitting assembly, comprising a housing, characterized in that: The housing is installed on the top of the base plate. The front end of the housing is provided with a rod changing hole. Two connecting devices are installed on both the front and rear ends of the housing. A motor connected to the roller is provided on the connecting plate at the rear end of the housing. The connecting device is equipped with two rollers, one upper and one lower. A slitting table is installed inside the housing. A hydraulic rod is installed on the top of the housing and is connected to the slitting mechanism. The slitting table is located in the middle of the housing and is also located at the bottom of the slitting mechanism. The slitting table is snapped into the housing and fastened with bolts.

2. The slitting component according to claim 1, characterized in that: The connecting device consists of two connecting plates, two springs (one), two springs (two), two T-shaped shafts, and a connecting shaft. The two connecting plates are mounted together via the connecting shaft, and the two springs (one) are mounted on the two connecting plates at the points where they mate with the connecting shaft. The larger diameter end of the T-shaped shaft is mounted inside the housing, and the other end is mounted on the connecting plate. The springs (two) are penetrated by the T-shaped shaft.

3. A slitting component according to claim 2, characterized in that: The connecting shaft is I-shaped and is mounted on the opposite end faces of two connecting plates. Both opposite end faces of the two connecting plates are provided with T-shaped holes that mate with the connecting shaft. The spring is installed in the T-shaped hole and is penetrated by the connecting shaft. The connecting plate is provided with through holes that mate with the rotation of the roller. The housing is provided with T-shaped holes that mate with the T-shaped shaft.

4. A slitting component according to claim 1, characterized in that: The slitting mechanism consists of an L-shaped fixed plate, a slitting shaft, two slitting blades, a long bolt, and a movable plate. The L-shaped fixed plate has a through hole that rotatably engages with the slitting shaft. The top of the L-shaped fixed plate is connected to the movable end of a hydraulic rod. The movable plate is mounted on the L-shaped fixed plate. The two slitting blades are mounted on the slitting shaft. A motor that engages with the slitting shaft is located on the side of the L-shaped fixed plate. The long bolt is mounted on the top of the movable plate.

5. A slitting component according to claim 4, characterized in that: The movable plate is rotatably connected to the end of the L-shaped fixed plate without sides, and both the end of the L-shaped fixed plate without sides and the top of the movable plate are provided with threaded holes that cooperate with long bolts. The cutting shaft is installed between the L-shaped fixed plate and the movable plate, and the end of the movable plate near the cutting shaft is provided with a connecting hole that cooperates with the cutting shaft.

6. A packaging paper cutting device, comprising a slitting assembly as described in any one of claims 1-5, the packaging paper cutting device including a base plate, characterized in that: Support plate one and support plate two are installed at the top left and right ends of the base plate. A cutting frame is provided between support plate one and support plate two. A conveyor belt one is provided inside support plate one, and a motor cooperating with the conveyor belt one is provided at the rear end of support plate one. A limit mechanism and a cutting blade are installed on the cutting frame, and a clamping mechanism is provided on the cutting blade. A conveyor belt two is provided inside support plate two, and a motor cooperating with the conveyor belt two is provided at the rear end of support plate two. A collection box is provided at the left end of support plate two.

7. A packaging paper cutting device according to claim 6, characterized in that: The cutting frame has a cutting table at the left end and a connecting table that cooperates with the limiting mechanism at the right end. The bottom of the left end face of the front and rear sides of the cutting frame has a square groove that cooperates with the cutting mechanism. The front and rear ends of the square groove have slide rails. The top of the square groove has a motor that cooperates with the cutting mechanism. The output end of the motor has a lead screw.

8. A packaging paper cutting device according to claim 6, characterized in that: The limiting mechanism consists of an N-shaped plate, two lead screws, two motors, and two transmission plates. The transmission plates are installed at the left and right ends of the N-shaped plate. One end of the lead screw is installed on the top of the support plate and the other end passes through the connecting platform at the right end of the cutting frame. The motors are installed on the top of the connecting platform and connected to the lead screws. The N-shaped plate is located at the top left end of the conveyor belt.

9. A packaging paper cutting device according to claim 6, characterized in that: The cutting blade has two moving blocks at the top right end. The two moving blocks are installed at the front and rear ends of the right side. The front and rear ends of the moving blocks are equipped with sliders, and the moving blocks are equipped with threaded through holes that cooperate with the lead screw.

10. A packaging paper cutting device according to claim 6, characterized in that: The clamping mechanism is installed at the bottom of the cutting blade. The clamping mechanism consists of a fixed shell, several springs, and several clamping suction cups. The cutting blade passes through the fixed shell and is clamped inside the fixed shell. The several clamping suction cups pass through the bottom of the fixed shell and are installed on the protruding parts set at the left and right ends of the cutting blade. The springs are installed inside the fixed shell and are penetrated by the clamping suction cups.

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