Cutting device

Abstract

The utility model provides a cutting device, which comprises a shell, a cutting device, a cutting device, a cutting device, a cutting device, a cutting device and a cutting device, and is characterized in that the shell is provided with a mounting part and an outlet part; the first driving assembly is arranged on the shell and used for making contact with the adhesive tape to drive the adhesive tape to move, so that the free end of the adhesive tape moves out of the shell through the outlet part; the cutting assembly comprises a cutting piece and a puncturing piece, the cutting piece is arranged at the outlet part and used for cutting off part of the tape body, extending out of the outlet part, of the adhesive tape, and the puncturing piece is arranged on the side, away from the cutting piece, of the cutting piece so that the adhesive tape can be punctured through the puncturing piece; wherein the puncturing piece is movably arranged in the width direction of the adhesive tape so as to adjust the position of puncturing the adhesive tape. By means of the technical scheme, the problem that in the prior art, a cutting tool can only cut the adhesive tape in one direction can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tape cutting, and more specifically, to a cutting device. Background Art

[0002] In the process of process analysis in the manufacturing industry, the collection of samples is not only a crucial link but also the basis for ensuring the accuracy and reliability of analysis results. As a common collection tool, tape is widely used in the collection of various samples due to its adhesiveness and easy cutting characteristics. Before using the tape, it is often necessary to cut it with a cutting tool.

[0003] However, although the existing cutting tools provide convenience to a certain extent, there are still obvious deficiencies and defects. For example, the existing cutting tools can often only cut the tape along its length direction and cannot control the width of the tape, resulting in their inability to meet different usage requirements. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a cutting device to solve the problem that the existing cutting tools can only cut the tape in one direction.

[0005] To achieve the above purpose, the utility model provides a cutting device, including:

[0006] A housing having a mounting portion and an outlet portion, the mounting portion being for sleeving the tape;

[0007] A first driving assembly disposed on the housing, the first driving assembly being for contacting the tape to drive the tape to move so that the free end of the tape moves out of the housing through the outlet portion;

[0008] A cutting assembly including a cutting member and a piercing member, the cutting member being disposed at the outlet portion for cutting off a part of the tape body extending from the outlet portion, the piercing member being disposed on the side of the cutting member away from the cutting member for piercing the tape; wherein, the piercing member is movably disposed along the width direction of the tape to adjust the position of piercing the tape.

[0009] Further, the cutting device further includes a second driving assembly, the second driving assembly including a second driving member and a movable rod, the piercing member being disposed on the movable rod, the second driving member being drivingly connected to the movable rod to drive the piercing member to move along the extending direction of the movable rod.

[0010] Further, the piercing member includes a movable portion, an external thread is provided on the movable rod, an internal thread adapted to the external thread is provided on the movable portion, the second driving member is a knob, and the second driving member is for driving the movable rod to rotate to drive the movable portion to move along the extending direction of the movable rod;

[0011] Wherein, a first identification scale is provided on the second driving member to determine the rotation angle through the first identification scale.

[0012] Furthermore, the second driving assembly further includes a limiting plate. The limiting plate is arranged on the housing and is spaced from the movable rod. The movable part is attached to the limiting plate to limit the rotation of the movable part; and / or,

[0013] The puncturing member further includes a puncturing portion. The puncturing portion is detachably arranged on the movable part and is used for puncturing the tape.

[0014] Furthermore, when the second driving assembly includes a limiting plate,

[0015] The limiting plate is detachably arranged on the housing. Wherein, the cross-section of the limiting plate is trapezoidal. A limiting through-hole is arranged on one side of the housing along the width direction of the tape, and a limiting groove is arranged on the other side of the housing along the width direction of the tape. One end of the limiting plate is inserted into the limiting groove, and the other end of the limiting plate is inserted into the limiting through-hole; and / or,

[0016] A second identification scale is provided on the limiting plate to determine the position of the movable part through the second identification scale.

[0017] Furthermore, the first driving assembly includes a first driving member and a driving wheel. The driving wheel is spaced from the cutting assembly, and the driving wheel presses on the tape; wherein, the first driving member is connected to the driving wheel, and the first driving member is used to drive the driving wheel to rotate so as to drive the tape to move.

[0018] Furthermore, the first driving member is a driving knob, and a third identification scale is provided on the first driving member to determine the rotation angle through the third identification scale.

[0019] Furthermore, the first driving assembly further includes a driven wheel. A gap is formed between the driven wheel and the driving wheel to enable at least part of the tape to pass through the gap; wherein, a part of the tape body is clamped between the driving wheel and the driven wheel.

[0020] Furthermore, the first driving assembly has a driving wheel for pressing on the tape body. The puncturing member is arranged on the side of the driving wheel away from the outlet portion; when the driving wheel rotates in the first direction, the tape body between the driving wheel and the mounting portion is in a taut state under the action of the driving wheel so that the puncturing member punctures the tape; when the driving wheel rotates in the second direction, the tape is in a relaxed state to avoid the puncturing member.

[0021] Further, the installation part is in a columnar structure, and the bearing ring of the tape is sleeved on the columnar structure; wherein, the cutting device further includes a fixing member, which is movably arranged on the housing and is spaced from the installation part; the fixing member has a pressing position for pressing the outer surface of the tape body sleeved on the columnar structure and a avoiding position for avoiding the tape body.

[0022] Applying the technical solution of the present utility model, it is possible to cut off the tape body extending from the outlet part by the cutting member, and it is also possible to pierce the tape in the width direction of the tape by the piercing member, and the piercing member can move in the width direction of the tape, so as to control the width of the cut tape. Thus, the cutting device provided by the present utility model can cut the tape in the length and width directions of the tape, thereby solving the problem that the cutting tool in the prior art can only cut the tape in one direction. Description of the Drawings

[0023] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 Shows a schematic structural diagram of the cutting device provided by the embodiment of the present utility model from one perspective;

[0025] Figure 2 Shows a schematic structural diagram of the cutting device provided by the embodiment of the present utility model from another perspective;

[0026] Figure 3 Shows a schematic structural diagram of the tape cut by the cutting device provided by the embodiment of the present utility model in a taut state;

[0027] Figure 4 Shows a schematic structural diagram of the tape cut by the cutting device provided by the embodiment of the present utility model in a relaxed state.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 100, tape; 101, tape body;

[0030] 10, housing; 11, installation part; 12, outlet part; 13, limiting through hole;

[0031] 20, first driving assembly; 21, first driving member; 22, driving wheel; 23, driven wheel;

[0032] 30, cutting assembly; 31, cutting member; 32, piercing member; 321, movable part; 322, piercing part;

[0033] 40. Second driving assembly; 41. Second driving member; 42. Movable rod; 43. Limiting plate;

[0034] 50. Fixing member. Specific embodiments

[0035] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0036] As Figures 1 to 4 shown, an embodiment of the present utility model provides a cutting device, which includes a housing 10, a first driving assembly 20 and a cutting assembly 30. Among them, the housing 10 has an outlet portion 12 and an installation portion 11 for sleeving the tape 100. The first driving assembly 20 is arranged on the housing 10, and is used to contact the tape 100 to drive the tape 100 to move, so that the free end of the tape 100 moves out of the housing 10 through the outlet portion 12. The cutting assembly 30 includes a cutting member 31 and a piercing member 32. The cutting member 31 is arranged at the outlet portion 12 to cut off a part of the tape body of the tape 100 extending from the outlet portion 12. The piercing member 32 is arranged on the side of the cutting member 31 away from the cutting member 31 to pierce the tape 100 through the piercing member 32. Moreover, the piercing member 32 is movably arranged along the width direction of the tape 100, so that the position of piercing the tape 100 can be adjusted.

[0037] By using the cutting device provided in this embodiment, the tape body of the tape 100 extending from the outlet portion 12 can be cut off by the cutting member 31, and the tape 100 can be pierced in the width direction of the tape 100 by the piercing member 32, and the piercing member 32 can move in the width direction of the tape 100, so that the width of the cut tape 100 can be controlled. Thus, the cutting device can cut the tape 100 in multiple directions, so as to meet the usage requirements of the tape 100 in different usage scenarios.

[0038] In this embodiment, the cutting device further includes a second driving assembly 40. The second driving assembly 40 includes a second driving member 41 and a movable rod 42. The piercing member 32 is arranged on the movable rod 42. The second driving member 41 is drivingly connected to the movable rod 42 to drive the piercing member 32 to move along the extending direction of the movable rod 42. In this way, the moving direction and moving distance of the piercing member 32 can be controlled through the movable rod 42. Its structure is simple, the driving stability is high, and the production cost can be saved.

[0039] In this embodiment, the puncturing member 32 includes a movable part 321. An external thread is provided on the movable rod 42, and an internal thread adapted to the external thread is provided on the movable part 321. The second driving member 41 is a knob. The second driving member 41 is used to drive the movable rod 42 to rotate so as to drive the movable part 321 to move along the extension direction of the movable rod 42. A first identification scale is provided on the second driving member 41 to determine the rotation angle through the first identification scale. Controlling the movement of the puncturing member 32 in the form of a lead screw and nut can improve the movement stability of the puncturing member 32. Moreover, by providing the first identification scale on the second driving member 41, the rotation angle can be determined through the first identification scale, so that the movement distance of the puncturing member 32 can be accurately controlled, and thus, the position of the puncturing member 32 can be accurately controlled.

[0040] Specifically, 4 scales are evenly distributed on the second driving member 41. The pitch of the movable rod 42 is 4 mm. When the second driving member 41 rotates one circle, the movable rod 42 rotates one week, and the distance that the puncturing member 32 moves is 4 mm. Thus, from a certain perspective, when the second driving member 41 rotates one scale clockwise, the puncturing member 32 moves 1 mm closer to the second driving member 41; when the second driving member 41 rotates one scale counterclockwise, the puncturing member 32 moves 1 mm away from the second driving member 41.

[0041] In this embodiment, the second driving assembly 40 further includes a limiting plate 43. The limiting plate 43 is provided on the housing 10 and is spaced from the movable rod 42. The movable part 321 is attached to the limiting plate 43 to limit the rotation of the movable part 321. In this way, since the transmission form between the movable part 321 and the movable rod 42 is in the form of a lead screw and nut, in order to ensure that the movable part 321 can move horizontally in the width direction of the tape 100, by providing the limiting plate 43 and attaching the movable part 321 to the limiting plate 43, the rotation of the movable part 321 can be restricted to prevent it from rotating with the rotation of the movable rod 42.

[0042] In this embodiment, the puncturing member 32 further includes a puncturing part 322. The puncturing part 322 is detachably provided on the movable part 321. The puncturing part 322 is used to puncture the tape 100. In this way, when the puncturing part 322 is damaged, it can be conveniently replaced. Specifically, a puncturing groove is provided on the movable part 321, and the puncturing part 322 is a puncturing blade, and the puncturing part 322 is inserted into the puncturing groove.

[0043] In this embodiment, the limiting plate 43 is detachably arranged on the housing 10. Among them, the cross-section of the limiting plate 43 is trapezoidal. One side of the housing 10 in the width direction of the tape 100 is provided with a limiting through hole 13, and the other side of the housing 10 in the width direction of the tape 100 is provided with a limiting groove. One end of the limiting plate 43 is inserted into the limiting groove, and the other end of the limiting plate 43 is inserted into the limiting through hole 13. In this way, the limiting plate 43 can be disassembled before the puncturing part 322 is disassembled, so as to prevent it from hindering the disassembly of the limiting plate 43. Moreover, by setting the cross-section of the limiting plate 43 to be trapezoidal, it can prevent it from being installed in the wrong direction and can prevent it from shifting during the movement of the puncturing member 32, thereby ensuring the stability of the limiting plate 43 after being installed on the housing 10.

[0044] In this embodiment, a second identification scale is provided on the limiting plate 43 to determine the position of the movable part 321 through the second identification scale. In this way, the position of the puncturing part 322 can be determined, so as to facilitate the adjustment of the position of the puncturing part 322, and thus the width of the tape 100 that needs to be cut can be accurately controlled.

[0045] In this embodiment, the first driving assembly 20 includes a first driving member 21 and a driving wheel 22. The driving wheel 22 is arranged at an interval from the cutting assembly 30, and the driving wheel 22 is pressed on the tape 100; among them, the first driving member 21 is connected to the driving wheel 22, and the first driving member 21 is used to drive the driving wheel 22 to rotate so as to drive the tape 100 to move. In this way, the driving wheel 22 is pressed on the tape 100. When the driving wheel 22 rotates, it can drive the tape 100 to move through friction, so as to control the length of the tape 100 extending out of the outlet part 12.

[0046] In this embodiment, the first driving member 21 is a driving knob, and a third identification scale is provided on the first driving member 21 to determine the rotation angle through the third identification scale. In this way, the length of the tape 100 extending out of the outlet part 12 can be accurately controlled, and thus the length of the tape 100 that needs to be cut can be determined.

[0047] In a certain scenario, the first driving member 21 is made of plastic. It is stipulated that when the first driving member 21 rotates clockwise, the driving wheel 22 pushes the tape 100 forward; when the first driving member 21 rotates counterclockwise, the driving wheel 22 pushes the tape 100 backward. Specifically, 50 scales are evenly distributed on the first driving member 21, the radius r of the driving wheel 22 = 8 mm. When the first driving member 21 rotates one circle, the advancing distance of the tape 100 = the circumference of the driving wheel 22 = 2 * π * r = 2 * 3.1415 * 8 ≈ 50 mm, that is, when the first driving member 21 rotates clockwise by one scale, the tape 100 advances 1 mm; when the first driving member 21 rotates counterclockwise by one scale, the tape 100 retreats 1 mm.

[0048] In this embodiment, the first driving assembly 20 further includes a driven wheel 23. A gap is formed between the driven wheel 23 and the driving wheel 22, so that at least a part of the tape 100 passes through the gap. Wherein, a part of the tape body of the tape 100 is clamped between the driving wheel 22 and the driven wheel 23. Thus, it can be ensured that the tape 100 is clamped by the driving wheel 22 and the driven wheel 23, so that when the driving wheel 22 drives the tape 100 to rotate, the movement stability of the tape 100 can be ensured.

[0049] In this embodiment, the first driving assembly 20 has a driving wheel 22 for pressing on the tape body of the tape 100, and the piercing member 32 is arranged on the side of the driving wheel 22 away from the outlet portion 12. When the driving wheel 22 rotates in the first direction, the tape body of the tape 100 between the driving wheel 22 and the mounting portion 11 is in a taut state under the action of the driving wheel 22, so that the piercing member 32 pierces the tape 100; when the driving wheel 22 rotates in the second direction, the tape 100 is in a relaxed state to avoid the piercing member 32. In this way, when the driving wheel 22 rotates in the first direction, the tape 100 moves towards the outlet portion 12, and the piercing member 32 can pierce the tape 100. When the driving wheel 22 rotates in the second direction, the tape 100 is in a relaxed state and can avoid the piercing member 32. At this time, the position of the piercing member 32 can be adjusted, so that the tape 100 can be prevented from hindering the position adjustment process of the piercing member 32.

[0050] In this embodiment, the mounting portion 11 is a columnar structure, and the bearing ring of the tape 100 is sleeved on the columnar structure. The cutting device further includes a fixing member 50, and the fixing member 50 is movably arranged on the housing 10 and is spaced from the mounting portion 11. The fixing member 50 has a pressing position for pressing the outer surface of the tape main body 101 sleeved on the columnar structure and a avoiding position for avoiding the tape main body 101. In this way, the tape 100 can be fixed and supported by the mounting portion 11. When the first driving assembly 20 drives the free end of the tape 100 to move, the bearing ring of the tape 100 can smoothly roll on the mounting portion 11. And when the bearing ring of the tape 100 is sleeved on the columnar structure, by pressing the outer surface of the tape main body 101 with the fixing member 50, it can be ensured that the tape 100 is always in a taut state, so as to facilitate cutting the tape 100. When installing or disassembling the tape 100, the fixing member 50 can avoid it to prevent it from hindering the installation and disassembly of the tape 100.

[0051] Specifically, the fixing member 50 can be a spring piece, and one end of the spring piece is fixed on the housing 10.

[0052] Specifically, the fixing member 50 can be a fixing piece, and one end of the fixing piece is hinged on the housing 10.

[0053] Specifically, a usage method of the cutting device provided in this embodiment is as follows: A plurality of saw teeth are provided on the side of the cutting member 31 close to the tape 100. The first driving member 21 rotates counterclockwise to drive the driving wheel 22 to push the tape 100 forward. The tape 100 will move forward, and the puncturing member punctures the tape 100 in the width direction. When the length of the tape 100 extending out of the outlet portion 12 reaches the usage requirement, when the tape 100 is in contact with the hand or tweezers under downward traction, a pressure will be generated on the tape 100, and the tip of the saw tooth will first penetrate into the tape 100. As the downward traction continues, the saw teeth will gradually pass through the tape 100 and cut it open, completing the horizontal cutting of the tape 100.

[0054] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: Compared with the existing cutting device, it not only improves the operation convenience, but also makes the cutting in the width direction of the tape 100 more accurate, meeting the sample collection requirements of different lengths. Moreover, the cutting device has a dual quantitative cutting function in the length and width directions of the tape. Whether long strips or tapes of a specific width are required, they can be accurately cut, so as to meet the strict requirements for sample sizes in different experiments or production processes, enabling the cutting device to adapt to the sample collection work of various size requirements. Through this quantifiable cutting device, users can focus more on the quality and efficiency of sample collection without worrying about possible size deviation problems during the cutting process, greatly improving the accuracy of process analysis and the consistency of sample collection.

[0055] 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. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0057] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the outline of each component itself.

[0058] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. may be used here to describe the spatial positional relationships of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0059] In addition, it should be noted that the use of terms such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statement, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present application.

[0060] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cutting device, characterized in that, Comprising: A housing (10), the housing (10) having a mounting portion (11) and an outlet portion (12), the mounting portion (11) for sleeving a tape (100); A first driving assembly (20), disposed on the housing (10), the first driving assembly (20) for contacting the tape (100) to drive the tape (100) to move, so that the free end of the tape (100) moves out of the housing (10) through the outlet portion (12); A cutting assembly (30), including a cutting member (31) and a piercing member (32), the cutting member (31) disposed at the outlet portion (12) for truncating a portion of the tape body of the tape (100) extending from the outlet portion (12), the piercing member (32) disposed on a side of the cutting member (31) away from the cutting member (31) for piercing the tape (100) through the piercing member (32); wherein, the piercing member (32) is movably disposed along the width direction of the tape (100) to adjust the position of piercing the tape (100).

2. The cutting device according to claim 1, characterized in that, The cutting device further includes a second driving assembly (40), the second driving assembly (40) including a second driving member (41) and a movable rod (42), the piercing member (32) disposed on the movable rod (42), the second driving member (41) drivingly connected to the movable rod (42) to drive the piercing member (32) to move along the extending direction of the movable rod (42).

3. The cutting device according to claim 2, wherein The piercing member (32) includes a movable portion (321), an external thread is provided on the movable rod (42), an internal thread adapted to the external thread is provided on the movable portion (321), the second driving member (41) is a knob, and the second driving member (41) is used to drive the movable rod (42) to rotate to drive the movable portion (321) to move along the extending direction of the movable rod (42); wherein, a first identification scale is provided on the second driving member (41) to determine the rotation angle through the first identification scale.

4. The cutting device according to claim 3, characterized in that the second driving assembly (40) further includes a limiting plate (43), the limiting plate (43) is disposed on the housing (10) and is spaced from the movable rod (42), and the movable portion (321) is attached to the limiting plate (43) to limit the rotation of the movable portion (321); and / or, the piercing member (32) further includes a piercing portion (322), the piercing portion (322) is detachably disposed on the movable portion (321), and the piercing portion (322) is used to pierce the tape (100).

5. The cutting device according to claim 4, wherein When the second driving assembly (40) includes a limiting plate (43), The limiting plate (43) is detachably arranged on the housing (10). Wherein, the cross-section of the limiting plate (43) is trapezoidal. One side of the housing (10) along the width direction of the tape (100) is provided with a limiting through hole (13), and the other side of the housing (10) along the width direction of the tape (100) is provided with a limiting groove. One end of the limiting plate (43) is inserted into the limiting groove, and the other end of the limiting plate (43) is inserted into the limiting through hole (13); and / or, A second identification scale is arranged on the limiting plate (43) to determine the position of the movable part (321) through the second identification scale.

6. The cutting device according to claim 1, characterized in that, The first driving assembly (20) includes a first driving member (21) and a driving wheel (22). The driving wheel (22) is arranged at an interval from the cutting assembly (30), and the driving wheel (22) is pressed on the tape (100); wherein, the first driving member (21) is connected to the driving wheel (22), and the first driving member (21) is used to drive the driving wheel (22) to rotate so as to drive the tape (100) to move.

7. The cutting device according to claim 6, characterized in that, The first driving member (21) is a driving knob, and a third identification scale is arranged on the first driving member (21) to determine the rotation angle through the third identification scale.

8. The cutting device according to claim 6, wherein The first driving assembly (20) further includes a driven wheel (23). A gap is formed between the driven wheel (23) and the driving wheel (22) so that at least part of the tape (100) passes through the gap; wherein, a part of the tape body of the tape (100) is clamped between the driving wheel (22) and the driven wheel (23).

9. The cutting device according to claim 1, characterized in that, The first driving assembly (20) has a driving wheel (22) for pressing on the tape body of the tape (100). The puncturing member (32) is arranged on the side of the driving wheel (22) away from the outlet part (12); when the driving wheel (22) rotates in the first direction, the tape body of the tape (100) located between the driving wheel (22) and the mounting part (11) is in a taut state under the action of the driving wheel (22) so that the puncturing member (32) punctures the tape (100); when the driving wheel (22) rotates in the second direction, the tape (100) is in a relaxed state to avoid the puncturing member (32).

10. The cutting device according to any one of claims 1 to 9, characterized in that The mounting part (11) is a columnar structure, and the bearing ring of the tape (100) is sleeved on the columnar structure; wherein, the cutting device further includes a fixing member (50). The fixing member (50) is movably arranged on the housing (10) and is arranged at an interval from the mounting part (11); the fixing member (50) has a pressing position for pressing the outer surface of the tape main body (101) sleeved on the columnar structure and a avoiding position for avoiding the tape main body (101).

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