A plastic cutting machine
By adopting a V-shaped plate positioning seat and sliding clamping design in the plastic cutting machine, the problem of precise positioning and stable cutting of small plastic parts is solved, achieving efficient and accurate cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI BODIE PLASTIC CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional cutting methods are difficult to use for precise positioning and stable cutting of small plastic parts such as eye drop bottle caps with small diameters, resulting in low cutting efficiency.
Using a V-shaped plate as a positioning seat, combined with a sliding component and clamp design, it achieves self-centering function to quickly fix materials, and through the stable connection of the guide component and the cutting blade, it ensures the accuracy and stability of the cutting process.
It improves the cutting efficiency and precision of small plastic parts, reduces manual adjustment time, prevents workpiece slippage and displacement during cutting, and enhances the convenience of operation and cutting quality.
Smart Images
Figure CN224275295U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cutting equipment technology, and in particular to a plastic cutting machine. Background Technology
[0002] Plastic cutting machines are widely used in modern industry and daily life, especially in the precise processing of small plastic products. For example, in the pharmaceutical industry, the cutting accuracy of small plastic parts such as eye drop bottle caps directly affects the product's sealing performance and user experience.
[0003] For cutting small plastic parts, the common methods are manual cutting, rotary cutting, or using a fixed clamp with a cutting blade. Manual cutting relies on the operator's experience and skill, and the cutting task is completed by holding the cutting tool by hand; rotary cutting uses a high-speed rotating blade to cut the plastic part; the fixed clamp with a cutting blade method involves fixing the part to be cut on the clamp and moving the blade to achieve cutting.
[0004] Regarding the aforementioned technologies, when processing small-diameter parts such as eye drop bottle caps, the small size and special shape of the parts make it difficult for traditional cutting methods to achieve precise positioning and stable cutting, resulting in low cutting efficiency. Utility Model Content
[0005] To overcome the above problems, this application provides a plastic cutting machine.
[0006] The plastic cutting machine provided in this application adopts the following technical solution:
[0007] A plastic cutting machine includes a support assembly, a placement assembly, and a cutting assembly. The support assembly includes a support plate, and the placement assembly includes a placement component and a positioning seat connected to the top of the support plate. The positioning seat is a V-shaped plate with its opening facing away from the support plate. The V-shaped plate is used to place eye drop bottle caps that need to be cut. Both ends of the V-shaped groove formed by the V-shaped plate are open. One open end of the V-shaped groove is designated as the placement area, and the other open end is designated as the cutting area. The cutting assembly is connected to the support plate and is located near the cutting area. The cutting assembly is used to cut eye drop bottle caps.
[0008] By adopting the above technical solution, when it is necessary to cut eye drop bottle caps, firstly, the device is moved to the worktable, then the eye drop bottle cap to be cut is taken out, then the eye drop bottle cap is placed on the V-shaped plate, and the operator uses their hands to help fix the eye drop bottle cap, and then the cutting component cuts the eye drop bottle cap; the device uses the V-shaped plate as a positioning seat, which can quickly fix the material through the inclined plane self-centering function, reduce manual adjustment time, improve positioning accuracy, and prevent the workpiece from sliding during the cutting process. At the same time, the overall structure is reasonably designed, easy to operate, and improves the cutting efficiency and accuracy of small plastic parts.
[0009] In one specific implementation, the placement assembly further includes at least one slider and a clip. The slider is located on the side of the V-shaped plate away from the support plate. The slider includes a sliding rod that is close to one of the side plates of the V-shaped plate and is slidably connected to the V-shaped plate. The sliding rod slides along the length of the side where the two side plates of the V-shaped plate intersect. The clip is connected to one end of the sliding rod near the side where the two side plates of the V-shaped plate intersect, and the clip is used to hold the eye drop bottle cap.
[0010] By adopting the above technical solution, the sliding component and the clamp allow the eye drop bottle cap to be flexibly adjusted in position and securely clamped. Specifically, the sliding rod in the sliding component can slide along the side of the V-shaped plate, which makes it easy to adjust the clamping position according to the size of the eye drop bottle cap and the cutting requirements. The clamp is used to precisely fix the eye drop bottle cap and prevent it from shifting during the cutting process, thereby improving the cutting accuracy and stability.
[0011] In one specific implementation, the V-shaped plate has a groove near the sliding rod for the sliding rod to slide. The sliding rod is integrally connected to a plug at one end near the groove. The plug has two opposite sidewalls distributed perpendicular to the sliding direction of the sliding rod that fit against the two opposite sidewalls of the groove. The plug slides in the groove along the length of the groove.
[0012] The sliding component further includes a sliding rod and a spring. The sliding rod is located on the side of the insert rod away from the sliding rod. The sliding rod is an L-shaped rod. The sliding rod is slidably connected to the insert rod in a direction perpendicular to the sliding direction of the sliding rod. The insert rod has a sliding groove for placing one end of the sliding rod. One end of the spring is connected to the side of the sliding rod near the insert rod. The spring is located in the sliding groove. The spring is oriented in the same direction as the sliding direction of the sliding rod. The other end of the spring is connected to the insert rod. A V-shaped plate has multiple insertion holes in the sliding groove for inserting the other end of the sliding rod. When the end wall of the other end of the sliding rod is flush with the side wall of the insert rod, the sliding rod can be moved.
[0013] By adopting the above technical solution, the groove design allows the sliding rod to slide stably on the V-shaped plate. Combined with the insertion rod design, the sliding direction of the sliding rod is effectively limited, ensuring precise movement along the length of the V-shaped plate's side. The combination of the sliding rod and the spring enables rapid positioning and fixing of the sliding rod. Specifically, pressing the sliding rod compresses the spring, making the end of the sliding rod flush with the side wall of the insertion rod, thus facilitating the movement of the sliding rod. Releasing the sliding rod allows the spring to return to its original shape, pushing the end of the sliding rod into the pre-set insertion hole, locking the position of the sliding rod. This design not only improves the positioning accuracy during eye drop bottle cap cutting but also significantly enhances operational efficiency, reduces the time cost of manual adjustments, and ensures stability during the cutting process, avoiding cutting failures or precision reductions caused by workpiece slippage.
[0014] In one specific implementation, there are two sliding members. Each of the two sliding rods is close to one of the two side plates of the V-shaped plate. The clip is connected to one of the sliding rods. The other sliding rod has a fixing groove at the end away from the insertion rod. The fixing groove is close to the cutting area and fits against the side wall of the eye drop bottle cap.
[0015] By adopting the above technical solution, the fixing effect is further enhanced, effectively preventing the eye drop bottle cap from shaking during the cutting process, thereby improving the cutting accuracy and stability.
[0016] In one specific implementation, the placement component further includes a collection element located near the cutting area. The collection element is a collection box with an opening at the top. The collection box is connected to a V-shaped plate, and the top of the collection box is slightly lower than the bottom of the V-shaped plate.
[0017] By adopting the above technical solution, the collection box can effectively collect the waste generated during the cutting process, prevent the waste from scattering outside the equipment, and keep the working environment clean. The design of the top of the collection box being slightly lower than the bottom of the V-shaped plate ensures that the waste can fall smoothly into the collection box, improving the efficiency and reliability of waste collection.
[0018] In one specific implementation, the collection box is detachably attached to the V-shaped plate by a magnet.
[0019] By adopting the above technical solution, the installation and disassembly of the collection box are made more convenient and quick, and the operation can be completed without additional tools. This connection method not only improves the efficiency of equipment maintenance and cleaning, but also ensures that the collection box is stably fixed during operation, effectively preventing waste from scattering and keeping the working environment clean.
[0020] In one specific implementation, the cutting assembly includes a guide and a cutting component. The guide includes two guide rods and a fixed plate. The two guide rods are close to the cutting area. The distribution direction of the two guide rods is perpendicular to the sliding direction of the sliding rod. The two guide rods are arranged parallel to each other. The guide rods are perpendicularly connected to the support plate. The fixed plate is welded to one end of each guide rod away from the support plate on each side.
[0021] The cutting component includes a cutting blade for cutting eye drop bottle caps, with each end of the cutting blade close to a guide rod, and the cutting blade is slidably connected to the guide rod along the length direction of the guide rod.
[0022] By adopting the above technical solution, this design can ensure that the cutting blade maintains stability and accuracy during movement, avoiding a decrease in cutting precision due to blade deviation. At the same time, the two ends of the cutting blade are slidably connected along two guide rods, which further improves the straightness and stability of the cutting blade's movement, thereby achieving precise cutting of eye drop bottle caps and improving cutting quality.
[0023] In one specific implementation, the cutting component further includes a handle and a connecting rod. The fixed plate, the two guide rods, and the support plate form a rectangle. The handle is inclined along the diagonal of the rectangle. The higher end of the handle is rotatably connected to one side of the fixed plate. The connecting rod extends from the handle to the cutting blade. One end of the connecting rod is close to the higher side of the handle, and both ends of the connecting rod are rotatably connected to the handle and the cutting blade, respectively.
[0024] By adopting the above technical solution, the handle and connecting rod design makes the movement of the cutting blade more stable and precise. The handle is inclined along the diagonal of the rectangle and rotatably connected to the fixed plate. The operator can easily control the up and down movement of the cutting blade by rotating the handle, achieving precise cutting of eye drop bottle caps. The connecting rod connects the handle and the cutting blade, ensuring more efficient force transmission and improving stability during the cutting process. It prevents the cutting blade from deviating during movement, thereby improving cutting accuracy and work efficiency.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. The designed plastic cutting machine utilizes a V-shaped plate as a positioning seat, which can quickly fix the material through the inclined plane self-centering function, reducing manual adjustment time, improving positioning accuracy, and preventing workpiece slippage during cutting. At the same time, the overall structure is reasonably designed, easy to operate, and improves the cutting efficiency and accuracy of small plastic parts.
[0027] 2. The designed plastic cutting machine features a sliding rod in the sliding component that can slide along the side of the V-shaped plate, facilitating adjustment of the clamping position according to the size of the eye drop bottle cap and cutting requirements. The clamp is used to precisely fix the eye drop bottle cap, preventing it from shifting during the cutting process, thereby improving cutting accuracy and stability.
[0028] 3. The designed plastic cutting machine further enhances the fixing effect, effectively preventing the eye drop bottle cap from shaking during the cutting process, thereby improving cutting accuracy and stability. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective in an embodiment of this application.
[0030] Figure 2 This is an enlarged view of A in this embodiment.
[0031] Figure 3 This is a schematic diagram of the slider in this embodiment.
[0032] Figure 4 This is a cross-sectional view of the slider in this embodiment.
[0033] Figure 5 This is a schematic diagram of the overall structure from the second perspective in this embodiment.
[0034] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Support plate; 12. Support component; 121. Anti-slip post; 2. Placement assembly; 21. Placement component; 211. Placement seat; 212. Positioning seat; 22. Sliding component; 221. Sliding rod; 2211. Insert rod; 2212. Fixing groove; 222. Sliding rod; 223. Spring; 23. Clamp; 24. Collection component; 3. Cutting assembly; 31. Guide component; 311. Guide rod; 312. Fixing plate; 32. Cutting component; 321. Cutting blade; 3211. Sliding seat; 322. Rotating shaft; 323. Handle; 3231. Flexible pad; 324. Connecting rod; 3241. Rotating rod. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0036] This application discloses a plastic cutting machine.
[0037] Reference Figure 1 A plastic cutting machine includes a support component 1, a placement component 2, and a cutting component 3, wherein the placement component 2 and the cutting component 3 are both disposed on the support component 1.
[0038] Reference Figure 1The support assembly 1 includes a support plate 11 and a support member 12. In this embodiment, the support plate 11 is a rectangular plate, and the support member 12 is located at the bottom of the support plate 11. The support member 12 includes four anti-slip piles 121, which are arranged in a matrix. Each of the four anti-slip piles 121 is located at one of the four corners of the support plate 11. The anti-slip piles 121 are fixedly connected to the support plate 11 by screws. The four anti-slip piles 121 can support the support plate 11 and prevent the device from moving during operation.
[0039] Reference Figure 1 , Figure 2 and Figure 3 The placement component 2 includes a placement member 21, at least one sliding member 22, a clamp 23, and a collection member 24. The placement member 21 includes a placement seat 211 and a positioning seat 212. The placement seat 211 is located on the top of the support plate 11 and is fixedly connected to the support plate 11 by screws. The positioning seat 212 is located on the side of the placement seat 211 away from the support plate 11. In this embodiment, the positioning seat 212 is a V-shaped plate with the opening facing away from the placement seat 211. The bottom of the V-shaped plate is welded to the placement seat 211. The top of the placement seat 211 has a placement groove for placing the V-shaped plate. The V-shaped plate is used to place the material to be cut. The material (circular or elliptical cover) can be quickly fixed by the inclined self-centering function, reducing manual adjustment time, preventing the workpiece from sliding during the cutting process, and improving positioning accuracy.
[0040] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, there are two sliding members 22, both of which are located on the side of the V-shaped plate away from the placement seat 211. Each sliding member 22 includes a sliding rod 221, a sliding bar 222, and a spring 223. Each of the two sliding rods 221 is close to one of the two side plates of the V-shaped plate and is slidably connected to the V-shaped plate. The sliding rod 221 slides along the length of the side where the two side plates of the V-shaped plate intersect. The V-shaped plate has a groove for the sliding rod 221 to slide near each of the two sliding rods 221. An insert rod 2211 is integrally connected to one end of the sliding rod 221 near the groove. The insert rod 2211 is set along two side walls opposite to the sliding groove perpendicular to the sliding direction of the sliding rod 221 and fits against the two side walls opposite to the groove. The insert rod 2211 can slide along the length of the groove within the groove.
[0041] Reference Figure 2 , Figure 3 and Figure 4The sliding rod 222 corresponds one-to-one with the sliding rod 221. The sliding rod 222 is located on the side of the insert rod 2211 away from the sliding rod 221. In this embodiment, the sliding rod 222 is an L-shaped rod, and the sliding rod 222 is slidably connected to the insert rod 2211. The sliding direction of the sliding rod 222 is perpendicular to the sliding direction of the sliding rod 221. The insert rod 2211 has a sliding groove for placing one end of the sliding rod 222. The spring 223 corresponds one-to-one with the sliding rod 222. The spring 223 is located on the side of the sliding rod 222 closer to the insert rod 2211, and the spring 223 is located in the sliding groove. The setting direction of the spring 223 is consistent with the sliding direction of the sliding rod 222. One end of the spring 223 is connected to the sliding rod 2211. The other end of the sliding rod 222 is welded to the insertion rod 2211. The V-shaped plate has multiple insertion holes in the slide groove for the other end of the sliding rod 222 to be inserted. The multiple insertion rods 2211 are distributed at intervals along the length of the slide groove. When it is necessary to move the sliding rod 221, the operator presses the sliding rod 222. At this time, the sliding rod 222 moves towards the side closer to the insertion rod 2211, and the spring 223 is compressed until the end wall of the other end of the sliding rod 222 is flush with the side wall of the insertion rod 2211. Then the sliding rod 221 can be moved. When the sliding rod 221 moves to the appropriate position, the sliding rod 222 is released. At this time, the spring 223 returns to its deformation and can push the other end of the sliding rod 222 into the corresponding insertion hole.
[0042] Reference Figure 1 , Figure 3 and Figure 4 The V-shaped groove formed by the V-shaped plate is open at both ends. One open end of the V-shaped groove is the placement area, and the other open end is the cutting area. The clamp 23 is close to one of the sliding rods 221, and the clamp 23 is located at the end of the sliding rod 221 away from the insertion rod 2211. The clamp 23 is located on the side of the sliding rod 221 closer to the cutting area. The clamp 23 is fixedly connected to the sliding rod 221 by screws. The clamp 23 is used to hold the eye drop bottle cap. In this embodiment, the spring 223 is a compression spring. The other sliding rod 221 has a fixing groove 2212 at the end away from the insertion rod 2211, and the fixing groove 2212 is close to the cutting area. The fixing groove 2212 fits against the side wall of the eye drop bottle cap, which facilitates further fixing of the eye drop bottle cap and prevents the eye drop bottle cap from shaking during the cutting process.
[0043] Reference Figure 5 The collecting component 24 is located near the cutting area. The collecting component 24 is a collecting box with an opening at the top. The collecting box is detachably connected to the V-shaped plate by a magnet. The top of the collecting box is slightly lower than the bottom of the V-shaped plate, which facilitates the collection of waste materials after the eye drop bottle cap is cut.
[0044] Reference Figure 5The cutting assembly 3 includes a guide 31 and a cutting component 32. The guide 31 includes two guide rods 311 and a fixing plate 312. The two guide rods 311 are close to the cutting area, and the distribution direction of the two guide rods 311 is perpendicular to the sliding direction of the sliding rod 221. The two guide rods 311 are arranged parallel to each other. The guide rods 311 are arranged perpendicular to the support plate 11, and one end of the guide rod 311 is welded to the support plate 11. The fixing plate 312 is located at the end of the guide rod 311 away from the support plate 11, and one guide rod 311 is welded to each side of the fixing plate 312.
[0045] Reference Figure 5 The cutting component 32 includes a cutting blade 321, a rotating shaft 322, a handle 323, and a connecting rod 324. Each end of the cutting blade 321 is fixedly connected to a sliding seat 3211 by screws. The sliding seats correspond one-to-one with the guide rods 311, and are slidably connected to the guide rods 311, sliding along the length of the guide rods 311. The cutting blade 321 is used to cut eye drop bottle caps. The rotating shaft 322 is located near one end of the fixed plate 312 and is parallel to the support plate 11. One end of the rotating shaft 322 passes through the fixed plate 312 and is fixedly connected to the fixed plate 312 by screws. The fixed plate 312, the two guide rods 311, and the support plate 11 form a rectangle. The handle 323 is inclined along the diagonal of the rectangle. The higher end of the handle 323 is rotatably connected to the rotating shaft 322, and the lower end is fitted with a flexible pad 3231. The connecting rod 324 extends from the handle 323 to the cutting blade. The cutter 321 is positioned on one side, with one end of the connecting rod 324 near the higher side of the handle 323. Each end of the connecting rod 324 is rotatably connected to a rotating rod 3241, which is parallel to the support plate 11. One end of the rotating rod 3241 near the handle 323 passes through the handle 323 and is fixedly connected to the handle 323 by screws. The other end of the rotating rod 3241 near the cutter 321 passes through the cutter 321 and is fixedly connected to the cutter 321 by screws. When cutting the eye drop bottle cap, the cap is placed in a suitable position, and the operator holds the flexible pad 3231 and rotates the handle 323. At this time, the handle 323, through the connecting rod 324, drives the cutter 321 to move away from the support plate 11. Once the cutter 321 has moved to a suitable position, the operator rotates the handle 323 in the opposite direction, causing the handle 323 to drive the cutter 321 to cut the eye drop bottle cap.
[0046] The implementation principle of a plastic cutting machine according to an embodiment of this application is as follows: When it is necessary to cut the cap of an eye drop bottle, firstly, the device is moved to the workbench, then the eye drop bottle cap to be cut is taken out, the eye drop bottle cap is clamped by the sliding member 22, the sliding member 22 is moved, and the person observes until the eye drop bottle cap is moved to the designated position. After that, the person turns the handle 323, the handle 323 drives the cutting blade 321 to move, which can cut the eye drop bottle cap.
[0047] When it is necessary to clamp the eye drop bottle cap, firstly, clamp the eye drop bottle cap with the clamp 23, then press the sliding rod 222 to move the sliding rod 221 connected to the clamp 23. When the sliding rod 221 moves to the appropriate position, release the sliding rod 222 to fix the sliding rod 221. Then move the other sliding rod 221 until the fixing groove 2212 fits against the side wall of the eye drop bottle cap, and then the cutting operation can be carried out.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A plastic cutting machine characterized by: The device includes a support assembly (1), a placement assembly (2), and a cutting assembly (3). The support assembly (1) includes a support plate (11). The placement assembly (2) includes a placement component (21). The placement component (21) includes a positioning seat (212). The positioning seat (212) is connected to the top of the support plate (11). The positioning seat (212) is a V-shaped plate with its opening facing away from the support plate (11). The V-shaped plate is used to place eye drop bottle caps that need to be cut. Both ends of the V-shaped groove formed by the V-shaped plate are open. One open end of the V-shaped groove is designated as the placement area, and the other open end is designated as the cutting area. The cutting assembly (3) is connected to the support plate (11) and is located near the cutting area. The cutting assembly (3) is used to cut eye drop bottle caps.
2. A plastic cutting machine according to claim 1, characterized in that: The placement assembly (2) further includes at least one slider (22) and a clip (23). The slider (22) is located on the side of the V-shaped plate away from the support plate (11). The slider (22) includes a sliding rod (221) which is close to one of the side plates of the V-shaped plate. The sliding rod (221) is slidably connected to the V-shaped plate and slides along the length of the side where the two side plates of the V-shaped plate intersect. The clip (23) is connected to one end of the sliding rod (221) near the side where the two side plates of the V-shaped plate intersect. The clip (23) is used to hold the eye drop bottle cap.
3. A plastic cutting machine according to claim 2, characterized in that: The V-shaped plate has a groove near the sliding rod (221) for the sliding rod (221) to slide. The sliding rod (221) is integrally connected to one end near the groove with a plug rod (2211). The two opposite side walls of the plug rod (2211) distributed perpendicular to the sliding direction of the sliding rod (221) are in contact with the two opposite side walls of the groove. The plug rod (2211) slides in the groove along the length of the groove. The sliding member (22) further includes a sliding rod (222) and a spring (223). The sliding rod (222) is located on the side of the insert rod (2211) away from the sliding rod (221). The sliding rod (222) is an L-shaped rod. The sliding rod (222) is slidably connected to the insert rod (2211) in a direction perpendicular to the sliding direction of the sliding rod (221). The insert rod (2211) has a sliding groove for placing one end of the sliding rod (222). One end of the spring (223) is connected to... The sliding rod (222) is located near the insertion rod (2211). The spring (223) is located in the sliding groove. The setting direction of the spring (223) is consistent with the sliding direction of the sliding rod (222). The other end of the spring (223) is connected to the insertion rod (2211). The V-shaped plate has multiple insertion holes in the sliding groove for the other end of the sliding rod (222) to be inserted. When the end wall of the other end of the sliding rod (222) is flush with the side wall of the insertion rod (2211), the sliding rod (221) can be moved.
4. A plastic cutting machine according to claim 3, characterized in that: There are two sliding parts (22). Each of the two sliding rods (221) is close to the two side plates of the V-shaped plate. The clip (23) is connected to one of the sliding rods (221). The other sliding rod (221) has a fixing groove (2212) at the end away from the insertion rod (2211). The fixing groove (2212) is close to the cutting area and fits against the side wall of the eye drop bottle cap.
5. A plastic cutting machine according to claim 2, characterized in that: The placement component (2) also includes a collection component (24), which is located near the cutting area. The collection component (24) is a collection box with an opening at the top. The collection box is connected to a V-shaped plate, and the top of the collection box is slightly lower than the bottom of the V-shaped plate.
6. A plastic cutting machine according to claim 5, characterized in that: The collection box is detachably attached to the V-shaped plate by magnets.
7. A plastic cutting machine according to claim 2, characterized in that: The cutting assembly (3) includes a guide (31) and a cutting component (32). The guide (31) includes two guide rods (311) and a fixing plate (312). The two guide rods (311) are close to the cutting area. The distribution direction of the two guide rods (311) is perpendicular to the sliding direction of the sliding rod (221). The two guide rods (311) are arranged parallel to each other. The guide rods (311) are perpendicularly connected to the support plate (11). The fixing plate (312) is welded to one end of each guide rod (311) away from the support plate (11) on each side. The cutting component (32) includes a cutting blade (321) for cutting eye drop bottle caps. Each end of the cutting blade (321) is close to a guide rod (311), and the cutting blade (321) is slidably connected to the guide rod (311) along the length direction of the guide rod (311).
8. A plastic cutting machine according to claim 7, characterized in that: The cutting component (32) also includes a handle (323) and a connecting rod (324). The fixing plate (312), the two guide rods (311), and the support plate (11) form a rectangle. The handle (323) is inclined along the diagonal of the rectangle. The higher end of the handle (323) is rotatably connected to one side of the fixing plate (312). The connecting rod (324) is set from the handle (323) to the cutting blade (321). One end of the connecting rod (324) is close to the higher side of the handle (323). The two ends of the connecting rod (324) are rotatably connected to the handle (323) and the cutting blade (321), respectively.