Monofilament cutting device

Abstract

The utility model belongs to the technical field of monofilament cutting devices, and particularly relates to a monofilament cutting device which comprises monofilament cutting equipment, a cutting box is fixedly installed on the monofilament cutting equipment, a U-shaped sealing shell is installed on the monofilament cutting equipment and located on the outer side of the cutting box in a sliding mode, and a filter screen is fixedly installed on the rear side of the U-shaped sealing shell. Negative pressure fans are symmetrically and fixedly mounted on the front side of the U-shaped sealing shell, an air duct is fixedly mounted on the U-shaped sealing shell and located on the front sides of the two negative pressure fans, a filter box is fixedly mounted in the air duct, and activated carbon is arranged in the filter box; when the whole device is used, the periphery of a workpiece can be fixed, the workpiece cannot shake in the machining process, meanwhile, waste gas is purified and discharged out of the device and cannot be directly sucked into the body by personnel, and the life health of the personnel is guaranteed; and finally, the single-wire cutting equipment is started to cut the workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of monofilament cutting devices, in particular to a monofilament cutting device. Background Art

[0002] Single wire cutting refers to a processing method. It is developed on the basis of electric spark perforation and forming processing. It uses a moving (molybdenum wire, copper wire or alloy wire) as an electrode wire, and relies on pulsed electric spark discharge between the electrode wire and the workpiece to generate high temperature to melt or vaporize the metal, forming a slit, thereby cutting out parts.

[0003] For example, the Chinese patent with publication number CN213614529U discloses a wire cutting device, which relates to the field of new CNC cutting processing. The device includes: a frame; first to fourth guide positioning devices, which are arranged on the frame; a drive platform, which is arranged on the frame; a tensioning platform, which is movably arranged on the drive platform; a linear motor, which is arranged on the drive platform and is used to drive the tensioning platform to reciprocate; a cutting line, which bypasses the first to fourth guide positioning devices, and the two ends of the cutting line are adjustably fixed on the tensioning platform. The device can accurately control the cutting process of the pressed blank and greatly improve the qualified rate of the cutting process.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the above-mentioned equipment will generate waste gas when cutting, and workers' long-term inhalation of waste gas may threaten their lives. At the same time, if the workpiece is not clamped during cutting, the cutting accuracy of the workpiece may be reduced, and the workpiece needs to be reprocessed, which wastes materials and time. In view of this, we propose a single wire cutting device. Utility Model Content

[0006] The purpose of the utility model is to provide a monofilament cutting device to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a monofilament cutting device, comprising:

[0008] A monofilament cutting device, wherein a cutting box is fixedly installed on the monofilament cutting device, a U-shaped sealing shell is slidably installed on the monofilament cutting device and located on the outside of the cutting box, a filter is fixedly installed on the rear side of the U-shaped sealing shell, and a negative pressure fan is symmetrically fixedly installed on the front side of the U-shaped sealing shell, an air duct is fixedly installed on the U-shaped sealing shell and located in front of two negative pressure fans, a filter box is fixedly installed in the air duct, and activated carbon is arranged in the filter box;

[0009] A lifting assembly, the lifting assembly is located in the monofilament cutting device and is used to drive the U-shaped sealing shell to rise or fall;

[0010] Two sliding frames, the two sliding frames are symmetrically slidably installed in the cutting box, a limit plate is slidably installed in the cutting box and between the two sliding frames, a rectangular bar is symmetrically fixedly installed at the bottom of the limit plate, a sliding block is slidably installed on the rectangular bar, a spring is sleeved on the rectangular bar, and one end of the rectangular bar extends into the sliding frame, and the rectangular bar is slidably connected to the sliding frame;

[0011] A driving assembly is located in the monofilament cutting device and is used to drive the two sliding frames to approach each other and the limiting plate to slide.

[0012] In the technical scheme, when the workpiece needs to be fixed, the workpiece is first placed in the cutting box, and the two sliding frames can squeeze the two sliding blocks to slide on the rectangular strips and approach each other through the provided driving assembly, and the two rectangular strips can slide in the two sliding frames respectively, and the two springs are squeezed and contracted at the same time. When the two sliding frames clamp the front and back sides of the workpiece, the provided driving assembly can drive the limit plate to slide, and the limit plate pushes the workpiece to slide, and the left and right sides of the workpiece are also fixed, and the four sides of the workpiece are fixed so that the workpiece will not shake during cutting;

[0013] When it is necessary to cut the workpiece, the lifting assembly can drive the air duct to slide downward, and the air duct drives the U-shaped sealing shell to slide downward. When the U-shaped sealing shell is moved to a suitable position, the inside of the cutting box can be sealed, and then the two negative pressure fans are started. The two negative pressure fans suck the outside wind into the cutting box through the filter net, and then blow the wind in the cutting box to the filter box. The exhaust gas is filtered by the activated carbon in the filter box. The exhaust gas is purified outside the exhaust device and will not be directly inhaled into the body by personnel, thereby ensuring the life and health of personnel. Finally, the single-wire cutting equipment is started to cut the workpiece.

[0014] In the above technical solution, further, the lifting assembly includes:

[0015] A power chamber, the power chamber is provided in the monofilament cutting device and is located on one side of the cutting box, a motor is fixedly installed in the power chamber, a gear is fixedly installed on the output shaft of the motor, the output shaft of the motor is rotatably connected to the power chamber, and the gear is rotatably connected to the power chamber;

[0016] The rack is fixedly mounted on the left side of the cutting box and is located on one side of the gear. The rack is meshed with the gear and is slidably connected to the monofilament cutting device.

[0017] In the present technical scheme, when it is necessary to fix the workpiece, first put the workpiece into the cutting box, then rotate the turntable and drive the bidirectional threaded rod to rotate, under the action of the thread, the two sliding frames slide in the cutting box and approach each other, the two sliding frames will squeeze the two sliding blocks to slide on the rectangular bars and approach each other, and the two rectangular bars will slide in the two sliding frames respectively, and the two springs will be squeezed and contracted at the same time, when the two sliding frames clamp the front and back sides of the workpiece, start the cylinder, the output shaft of the cylinder extends in the direction of the limit plate, the output shaft of the cylinder drives the limit plate to slide away from the cylinder, at this time the limit plate pushes the workpiece to slide in the direction away from the cylinder of the cutting box, at this time the left and right sides of the workpiece will also be fixed, the workpiece is fixed on all sides so that the workpiece will not shake during cutting.

[0018] In the above technical solution, further, the driving component includes:

[0019] A bidirectional threaded rod, the bidirectional threaded rod is rotatably mounted in the cutting box, and one end of the bidirectional threaded rod passes through two sliding frames and one side of the cutting box, the bidirectional threaded rod is provided with threads with opposite rotation directions at both ends, and the bidirectional threaded rod is threadedly connected to the two sliding frames, and a rotating disk is fixedly mounted on one end of the bidirectional threaded rod;

[0020] The cylinder is fixedly installed in the single-wire cutting device, and the output shaft of the cylinder passes through the single-wire cutting device and is fixedly connected to the limit plate, and the output shaft of the cylinder is slidably connected to the single-wire cutting device.

[0021] In the present technical solution, when the workpiece needs to be fixed, the workpiece is first placed in the cutting box. Through the provided driving assembly, the two sliding frames can slide in the cutting box and approach each other. The two sliding frames will squeeze the two sliding blocks to slide and approach each other. At the same time, the two springs are squeezed and contracted. When the two sliding frames clamp the front and back sides of the workpiece, the provided driving assembly can drive the limit plate to slide. At this time, the limit plate pushes the workpiece to slide. At this time, the left and right sides of the workpiece will also be fixed. The four sides of the workpiece are fixed so that the workpiece will not shake during cutting.

[0022] In the above technical solution, further, the two sliding frames are both slidably connected to the limiting plate.

[0023] In this technical solution, it is ensured that the two sliding frames can slide on the limiting plate.

[0024] In the above technical solution, further, glass is fixedly installed on the right side of the U-shaped sealing shell.

[0025] In the technical solution, the glass is provided to facilitate personnel to observe the processing status of the workpiece in the U-shaped sealing shell.

[0026] In the above technical solution, further, both ends of the two springs are tightly welded to the limit plate and the two sliding blocks respectively.

[0027] In this technical solution, structural stability is ensured.

[0028] The beneficial effects of the utility model are:

[0029] 1. When the workpiece needs to be fixed, the single-wire cutting device first puts the workpiece into the cutting box. The two sliding frames can squeeze the two sliding blocks to slide on the rectangular strips and approach each other through the set driving assembly, and the two rectangular strips can slide in the two sliding frames respectively. At the same time, the two springs are squeezed and contracted. When the two sliding frames clamp the front and back sides of the workpiece, the set driving assembly can drive the limit plate to slide. At this time, the limit plate pushes the workpiece to slide. At this time, the left and right sides of the workpiece will also be fixed. The four sides of the workpiece are fixed so that the workpiece will not shake during cutting.

[0030] 2. When the workpiece needs to be cut, the single-wire cutting device can drive the air duct to slide downward through the provided lifting assembly, and the air duct drives the U-shaped sealing shell to slide downward. When the U-shaped sealing shell is moved to a suitable position, the inside of the cutting box can be sealed, and then the two negative pressure fans are started. The two negative pressure fans suck the outside wind into the cutting box through the filter net, and then blow the wind in the cutting box to the filter box. The exhaust gas is filtered by the activated carbon in the filter box. The exhaust gas is purified outside the exhaust device and will not be directly inhaled into the body by personnel, thereby ensuring the life and health of personnel. Finally, the single-wire cutting equipment is started to cut the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 It is a schematic diagram of the rack area structure of the utility model;

[0033] Figure 3 It is a schematic diagram of the power chamber area structure of the utility model;

[0034] Figure 4 It is a schematic diagram of the U-shaped sealing shell area structure of the utility model;

[0035] Figure 5 It is a schematic diagram of the cylinder area structure of the utility model;

[0036] Figure 6 It is a schematic diagram of the regional structure of the limiting plate of the utility model;

[0037] Figure 7 The utility model Figure 6 Schematic diagram of the structure enlarged at point A in the middle.

[0038] The symbols in the figure are:

[0039] 1. Single wire cutting equipment; 2. Cutting box; 3. U-shaped sealing shell; 4. Glass; 5. Filter; 6. Negative pressure fan; 7. Air duct; 8. Filter box; 9. Sliding frame; 10. Limiting plate; 11. Rectangular bar; 12. Spring; 13. Sliding block; 14. Turntable; 15. Power chamber; 16. Motor; 17. Gear; 18. Rack; 19. Cylinder; 20. Bidirectional threaded rod. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0045] Embodiment 1:

[0046] See also Figure 1 - Figure 7 As shown, this embodiment provides a monofilament cutting device, comprising:

[0047] A monofilament cutting device 1, a cutting box 2 is fixedly installed on the monofilament cutting device 1, a U-shaped sealing shell 3 is slidably installed on the monofilament cutting device 1 and located outside the cutting box 2, a filter screen 5 is fixedly installed on the rear side of the U-shaped sealing shell 3, and a negative pressure fan 6 is symmetrically fixedly installed on the front side of the U-shaped sealing shell 3, an air duct 7 is fixedly installed on the U-shaped sealing shell 3 and located in front of two negative pressure fans 6, a filter box 8 is fixedly installed in the air duct 7, and activated carbon is arranged in the filter box 8;

[0048] A lifting assembly, which is located in the monofilament cutting device 1 and is used to drive the U-shaped sealing shell 3 to rise or fall;

[0049] Two sliding frames 9, the two sliding frames 9 are symmetrically slidably installed in the cutting box 2, a limit plate 10 is slidably installed in the cutting box 2 and between the two sliding frames 9, a rectangular bar 11 is symmetrically fixedly installed at the bottom of the limit plate 10, a sliding block 13 is slidably installed on the rectangular bar 11, a spring 12 is sleeved on the rectangular bar 11, and one end of the rectangular bar 11 extends into the sliding frame 9, and the rectangular bar 11 is slidably connected to the sliding frame 9;

[0050] The driving assembly is located in the monofilament cutting device 1 and is used to drive the two sliding frames 9 to approach each other and the limiting plate 10 to slide.

[0051] When the workpiece needs to be fixed, the workpiece is first placed in the cutting box 2. The two sliding frames 9 can squeeze the two sliding blocks 13 to slide on the rectangular strip 11 and approach each other through the provided driving assembly, and the two rectangular strips 11 can slide in the two sliding frames 9 respectively. At the same time, the two springs 12 are squeezed and contracted. When the two sliding frames 9 clamp the front and rear sides of the workpiece, the provided driving assembly can drive the limit plate 10 to slide. At this time, the limit plate 10 pushes the workpiece to slide. At this time, the left and right sides of the workpiece will also be fixed. The four sides of the workpiece are fixed so that the workpiece will not shake during cutting.

[0052] When it is necessary to cut the workpiece, the air duct 7 can be driven to slide downward through the provided lifting assembly, and the air duct 7 drives the U-shaped sealing shell 3 to slide downward. When the U-shaped sealing shell 3 is moved to a suitable position, the interior of the cutting box 2 can be sealed, and then the two negative pressure fans 6 are started. The two negative pressure fans 6 suck the external wind into the cutting box 2 through the filter net 5, and then blow the wind in the cutting box 2 to the filter box 8. The exhaust gas is filtered by the activated carbon in the filter box 8. The exhaust gas is purified outside the exhaust device and will not be directly inhaled into the body by personnel, thereby ensuring the life and health of personnel. Finally, the single-wire cutting equipment 1 is started to cut the workpiece.

[0053] In this embodiment, the lifting assembly includes:

[0054] A power chamber 15, which is provided in the monofilament cutting device 1 and is located at one side of the cutting box 2. A motor 16 is fixedly installed in the power chamber 15, and a gear 17 is fixedly installed on the output shaft of the motor 16. The output shaft of the motor 16 is rotatably connected to the power chamber 15, and the gear 17 is rotatably connected to the power chamber 15;

[0055] The rack 18 is fixedly mounted on the left side of the cutting box 2, and the rack 18 is located on one side of the gear 17, the rack 18 is meshed with the gear 17, and the rack 18 is slidably connected to the monofilament cutting device 1;

[0056] Among them, when it is necessary to fix the workpiece, first put the workpiece into the cutting box 2, then rotate the turntable 14 and drive the bidirectional threaded rod 20 to rotate. Under the action of the thread, the two sliding frames 9 slide in the cutting box 2 and approach each other. The two sliding frames 9 will squeeze the two sliding blocks 13 to slide on the rectangular bar 11 and approach each other, and the two rectangular bars 11 will slide in the two sliding frames 9 respectively, and the two springs 12 will be squeezed and contracted. When the two sliding frames 9 clamp the front and back sides of the workpiece, start the cylinder 19, and the output shaft of the cylinder 19 extends in the direction of the limit plate 10. The output shaft of the cylinder 19 drives the limit plate 10 to slide away from the cylinder 19. At this time, the limit plate 10 pushes the workpiece to slide in the direction away from the cylinder 19 of the cutting box 2. At this time, the left and right sides of the workpiece will also be fixed. The workpiece is fixed all around to prevent the workpiece from shaking during cutting.

[0057] In this embodiment, the driving component includes:

[0058] A bidirectional threaded rod 20, the bidirectional threaded rod 20 is rotatably mounted in the cutting box 2, and one end of the bidirectional threaded rod 20 passes through the two sliding frames 9 and one side of the cutting box 2, the bidirectional threaded rod 20 is provided with threads with opposite rotation directions at both ends, and the bidirectional threaded rod 20 is threadedly connected with the two sliding frames 9, and one end of the bidirectional threaded rod 20 is fixedly mounted with a turntable 14;

[0059] Cylinder 19, cylinder 19 is fixedly installed in the single wire cutting device 1, and the output shaft of cylinder 19 passes through the single wire cutting device 1 and is fixedly connected to the limit plate 10, and the output shaft of cylinder 19 is slidably connected to the single wire cutting device 1;

[0060] Among them, when the workpiece needs to be fixed, the workpiece is first placed in the cutting box 2. Through the set driving component, the two sliding frames 9 can slide in the cutting box 2 and approach each other. The two sliding frames 9 will squeeze the two sliding blocks 13 to slide and approach each other. At the same time, the two springs 12 are squeezed and contracted. When the two sliding frames 9 clamp the front and back sides of the workpiece, the set driving component can drive the limit plate 10 to slide. At this time, the limit plate 10 pushes the workpiece to slide. At this time, the left and right sides of the workpiece will also be fixed. The four sides of the workpiece are fixed to prevent the workpiece from shaking during cutting.

[0061] Embodiment 2:

[0062] This embodiment provides a monofilament cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] In this embodiment, the two sliding frames 9 are both slidably connected to the limiting plate 10 .

[0064] Here, it is ensured that the two sliding frames 9 can slide on the limiting plate 10 .

[0065] Embodiment 3:

[0066] This embodiment provides a monofilament cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] In this embodiment, a glass 4 is fixedly mounted on the right side of the U-shaped sealing shell 3 .

[0068] The glass 4 is provided to facilitate personnel to observe the processing status of the workpiece in the U-shaped sealing shell 3 .

[0069] Embodiment 4:

[0070] This embodiment provides a monofilament cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0071] In this embodiment, two ends of the two springs 12 are tightly welded to the limiting plate 10 and the two sliding blocks 13 respectively.

[0072] Among them, ensuring structural stability.

[0073] The single wire cutting device 1 involved in the utility model adopts the single wire cutting device of the product number medium wire cutting machine produced by Taizhou Lingfeng CNC Technology Co., Ltd. The single wire cutting device 1 involved in the utility model is the existing technology and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the structure and working principle of the single wire cutting device 1.

[0074] The negative pressure fan 6 involved in the utility model adopts the galvanized plate negative pressure fan with product number 1000 produced by Dongguan Chengxin Ventilation Equipment Co., Ltd. The negative pressure fan 6 involved in the utility model is the existing technology and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the structure and working principle of the negative pressure fan 6.

[0075] Working principle: When the workpiece needs to be fixed, first put the workpiece into the cutting box 2, then rotate the turntable 14 and drive the bidirectional threaded rod 20 to rotate. Under the action of the thread, the two sliding frames 9 slide in the cutting box 2 and approach each other. The two sliding frames 9 will squeeze the two sliding blocks 13 to slide on the rectangular strip 11 and approach each other, and the two rectangular strips 11 will slide in the two sliding frames 9 respectively. At the same time, the two springs 12 are squeezed and contracted. When the two sliding frames 9 clamp the front and back sides of the workpiece, start the cylinder 19, and the output shaft of the cylinder 19 extends in the direction of the limit plate 10. The output shaft of the cylinder 19 drives the limit plate 10 to slide away from the cylinder 19. At this time, the limit plate 10 pushes the workpiece to slide in the direction of the cutting box 2 away from the cylinder 19. At this time, the left and right sides of the workpiece will also be fixed. The four sides of the workpiece are fixed so that the workpiece will not shake during cutting.

[0076] When it is necessary to cut the workpiece, first the motor 16 is powered on and drives the gear 17 of its output shaft to rotate, the gear 17 drives the rack 18 meshing with it to slide downward, the rack 18 drives the air duct 7 to slide downward, the air duct 7 drives the U-shaped sealing shell 3 to slide downward, when the U-shaped sealing shell 3 is moved to a suitable position, the inside of the cutting box 2 can be sealed, and then the two negative pressure fans 6 are started, the two negative pressure fans 6 suck the outside wind into the cutting box 2 through the filter 5, and then blow the wind in the cutting box 2 to the filter box 8, the exhaust gas is filtered by the activated carbon in the filter box 8, the exhaust gas is purified outside the exhaust device, and will not be directly inhaled into the body by personnel, thereby ensuring the life and health of personnel, and finally the single-wire cutting equipment 1 is started to cut the workpiece.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A monofilament cutting device, characterized in that: include: A single-filament cutting device (1), wherein a cutting box (2) is fixedly mounted on the single-filament cutting device (1), a U-shaped sealing shell (3) is slidably mounted on the single-filament cutting device (1) and located outside the cutting box (2), a filter screen (5) is fixedly mounted on the rear side of the U-shaped sealing shell (3), and negative pressure fans (6) are symmetrically fixedly mounted on the front side of the U-shaped sealing shell (3), an air duct (7) is fixedly mounted on the U-shaped sealing shell (3) and located in front of two negative pressure fans (6), a filter box (8) is fixedly mounted in the air duct (7), and activated carbon is arranged in the filter box (8); A lifting component, the lifting component is located in the monofilament cutting device (1) and is used to drive the U-shaped sealing shell (3) to rise or fall; Two sliding frames (9), the two sliding frames (9) are symmetrically slidably installed in the cutting box (2), a limit plate (10) is slidably installed in the cutting box (2) and located between the two sliding frames (9), a rectangular bar (11) is symmetrically fixedly installed at the bottom of the limit plate (10), a sliding block (13) is slidably installed on the rectangular bar (11), a spring (12) is sleeved on the rectangular bar (11), and one end of the rectangular bar (11) extends into the sliding frame (9), and the rectangular bar (11) is slidably connected to the sliding frame (9); A driving assembly is located in the monofilament cutting device (1) and is used to drive the two sliding frames (9) to approach each other and the limiting plate (10) to slide.

2. A monofilament cutting device according to claim 1, characterized in that: The lifting assembly comprises: A power chamber (15), the power chamber (15) being disposed in the monofilament cutting device (1) and located on one side of the cutting box (2), a motor (16) being fixedly mounted in the power chamber (15), a gear (17) being fixedly mounted on an output shaft of the motor (16), the output shaft of the motor (16) being rotationally connected to the power chamber (15), and the gear (17) being rotationally connected to the power chamber (15); A rack (18) is fixedly mounted on the left side of the cutting box (2), and the rack (18) is located on one side of the gear (17), the rack (18) is meshed with the gear (17), and the rack (18) is slidably connected to the monofilament cutting device (1).

3. A monofilament cutting device according to claim 1, characterized in that: The drive assembly comprises: a bidirectional threaded rod (20), the bidirectional threaded rod (20) being rotatably mounted in the cutting box (2), and one end of the bidirectional threaded rod (20) passing through the two sliding frames (9) and one side of the cutting box (2), the bidirectional threaded rod (20) being provided with threads with opposite rotation directions at both ends, and the bidirectional threaded rod (20) being threadedly connected to the two sliding frames (9), and a rotating disk (14) being fixedly mounted on one end of the bidirectional threaded rod (20); A cylinder (19), wherein the cylinder (19) is fixedly installed in the single-wire cutting device (1), and an output shaft of the cylinder (19) passes through the single-wire cutting device (1) and is fixedly connected to the limit plate (10), and the output shaft of the cylinder (19) is slidably connected to the single-wire cutting device (1).

4. A monofilament cutting device according to claim 1, characterized in that: The two sliding frames (9) are both slidably connected to the limiting plate (10).

5. A monofilament cutting device according to claim 1, characterized in that: A glass (4) is fixedly mounted on the right side of the U-shaped sealing shell (3).

6. A monofilament cutting device according to claim 1, characterized in that: The two ends of the two springs (12) are tightly welded to the limit plate (10) and the two sliding blocks (13) respectively.

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