Cutting device

Abstract

The utility model discloses a cutting device, a base, a cutter and a clamp, the cutter is movably arranged on the base and suitable for moving relative to the base so as to be switched between a cutting position and a storage position, the clamp is located at one end of the base and suitable for clamping and fixing a to-be-cut part in the circumferential direction, and when the cutter is located at the cutting position, the to-be-cut part is stored in the storage position. At least part of the cutter extends into the clamp and pushes and abuts against the outer wall of the to-be-cut piece in the circumferential direction of the to-be-cut piece so as to be used for rotary cutting of the to-be-cut piece. Therefore, on one hand, the cutter can be switched between the cutting position and the storage position, and potential safety hazards can be reduced while the cutting difficulty of the to-be-cut piece is reduced; and on the other hand, the cutter can rotationally cut the to-be-cut part in the circumferential direction of the to-be-cut part, in the cutting process, the radial extrusion force applied to the to-be-cut part is smaller, extrusion deformation of the to-be-cut part is smaller, and the flatness of a notch can be improved.

Description

Technical Field

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

[0002] In the related art, when cutting a pipe, the cutter gradually tightens and presses against the pipe to cut the pipe, which will apply a radial force, resulting in a decrease in the flatness of the cut area of the pipe, an uneven cut, and in the case where there is an inner core or an inner pipe inside the pipe, it is easy to damage the inner core or the inner pipe. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a cutting device, the cut of which is flatter, and during the cutting process, the probability of damaging the inner core or the inner pipe is lower.

[0004] The present application discloses a cutting device, including: a base, a cutter, and a fixture. The cutter is movably arranged on the base and is adapted to move relative to the base to switch between a cutting position and a storage position. The fixture is located at one end of the base. The fixture is adapted to circumferentially clamp and fix the workpiece to be cut. When the cutter is in the cutting position, at least a part of the cutter extends into the fixture and pushes against the outer wall of the workpiece to be cut in the circumferential direction of the workpiece to be cut for rotary cutting of the workpiece to be cut.

[0005] For the cutting device according to the embodiment of the present application, on the one hand, the cutter can switch between the cutting position and the storage position, which can reduce the cutting difficulty of the workpiece to be cut and also reduce the potential safety hazard; on the other hand, the cutter can rotary cut the workpiece to be cut in the circumferential direction of the workpiece to be cut. During the cutting process, the radial extrusion force applied to the workpiece to be cut is smaller, the extrusion deformation of the workpiece to be cut is smaller, and the flatness of the cut can be improved.

[0006] According to some embodiments of the present application, the base includes: a first plate and a second plate, and the cutter is arranged between the first plate and the second plate.

[0007] According to some embodiments of the present application, a receiving groove is arranged on the first plate, the cutter is movably arranged in the receiving groove, and at least one end of the receiving groove adjacent to the fixture is open, so that when the cutter switches to the cutting position, at least a part of the cutter extends out of the receiving groove.

[0008] According to some embodiments of the present application, the depth of the receiving groove is 0.6 mm to 1 mm.

[0009] According to some embodiments of the present application, the cutting device further includes: an adjusting member, the cutting tool is connected to the adjusting member, the adjusting member is disposed on the base, and is selectively locked with the base, so that the cutting tool can be selectively locked at the cutting position or the storage position.

[0010] According to some embodiments of the present application, the base includes a first plate and a second plate, the adjusting member is disposed on the first plate, and is adapted to be selectively locked with the second plate.

[0011] According to some embodiments of the present application, a first groove is provided on the first plate, a second groove is provided on the second plate, the adjusting member is configured as a screw, the adjusting member passes through the first groove, and is threadedly engaged and locked with the second groove.

[0012] According to some embodiments of the present application, the fixture has an avoidance groove and a clamping hole communicating with the avoidance groove. At the cutting position, the cutting tool is adapted to pass through the avoidance groove and at least partially extend into the clamping hole.

[0013] According to some embodiments of the present application, the fixture further includes: an observation portion, the avoidance hole includes a first hole section and a second hole section, the apertures of the first hole section and the second hole section are the same, the observation portion is provided on the first hole section, and the observation portion is used to observe the position of the cutting tool.

[0014] According to some embodiments of the present application, the first hole section has a first cutting edge parallel to the length edge of the base and a second cutting edge parallel to the width edge of the base. The first cutting edge and the second cutting edge are both tangent to the projection circle of the first hole section, and the hollowed-out area defined by the first cutting edge and the second cutting edge forms the observation portion.

[0015] According to some embodiments of the present application, the base and the fixture are integrally formed. The first hole section and the observation portion are formed on the first plate, the second hole section is formed on the second plate, and the accommodating groove communicates with the avoidance groove.

[0016] According to some embodiments of the present application, the fixture is detachably disposed at the end of the base.

[0017] According to some embodiments of the present application, the cutting device is configured as a pen core holder cutting device, the workpiece to be cut is configured as a pen core holder of a cartridge injection pen, the pen core holder and the pen core both extend into the fixture, and the cutting tool is adapted to cut the pen core holder.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0020] Figure 1 is a schematic diagram of a base and a fixture according to an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of a first plate and a first hole section area of a fixture according to an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a second plate and a second hole section area of a fixture according to an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of a cutter in a retracted position according to an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a cutter in a cutting position according to an embodiment of the present application;

[0025] Figure 6 is a schematic diagram of an adjusting member according to an embodiment of the present application.

[0026] Reference numerals:

[0027] Cutting device 100, refill 200, refill holder 300,

[0028] Base 10, first plate 11, second plate 12, receiving groove 13, first groove 14, second groove 15,

[0029] Cutter 20,

[0030] Fixture 30, clamping hole 31, first hole section 311, second hole section 312, avoidance groove 32, observation part 33, first cutting edge 331, second cutting edge 332,

[0031] Adjusting member 40. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0034] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0037] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0040] In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0041] The term "a plurality of" as used in this application refers to two or more (including two).

[0042] In the prior art, during the use of pipes, processes such as bending and cutting are required to obtain pipe segments with appropriate shapes and appropriate length dimensions. The cutting of pipes can be directly carried out using a cutting knife. However, direct cutting with a cutting knife will result in an uneven cut surface, and during the cutting process, there are safety hazards, which are likely to cause injury to the cutting personnel. Or a special cutting device is used for cutting. During the cutting process, the cutting device applies a radial force to the pipe and completes the cutting of the pipe. During the cutting process, it will cause deformation at the end of the pipe, and there are also technical problems of uneven cut surfaces.

[0043] That is to say, in the prior art, during the cutting of pipes, it is easy to cause extrusion deformation of the pipes, and it is difficult to ensure the flatness of the cut surfaces of the pipes.

[0044] Based on this, the present application proposes a cutting device. The cutting device can achieve circumferential cutting of the pipe to reduce deformation during the cutting process of the pipe, and at the same time can improve the flatness of the cut surface of the pipe, reduce the cutting difficulty, and reduce the safety hazards during the cutting process.

[0045] Next, refer to Figures 1 - 6 to describe the cutting device 100 according to an embodiment of the present utility model.

[0046] Combined with Figure 1 、 Figure 4 andFigure 5 As shown in the figure, the present application discloses a cutting device 100, including: a base 10, a cutter 20, and a fixture 30.

[0047] Among them, the cutter 20 is movably arranged on the base 10 and is adapted to move relative to the base 10 to switch between a cutting position and a storage position (see Figure 4 and Figure 5 shown in the figure). The fixture 30 is located at one end of the base 10. The fixture 30 is adapted to circumferentially clamp and fix the workpiece to be cut. When the cutter 20 is in the cutting position, at least a part of the cutter 20 extends into the fixture 30 and radially pushes against the outer wall of the workpiece to be cut on the circumference of the workpiece to be cut, so as to be used for rotary cutting of the workpiece to be cut.

[0048] Specifically, the base 10 has a first end and a second end in the length direction. The cutter 20 can be movably arranged on the base 10 along the length direction of the base 10, so that the cutter 20 can be relative to the base 10 in the Figure 4 shown storage position and Figure 5 shown cutting position to switch, and the fixture 30 can be arranged on the first end or the second end. The fixture 30 is used for clamping and fixing the workpiece to be cut, such as clamping and fixing.

[0049] Furthermore, in the storage position, the cutter 20 is located inside the base 10, which can reduce the probability of the sharp cutter 20 causing injury to the operator and improve the safety hazard. In the cutting position, the cutter 20 can extend out of the base 10 and push against the outer wall of the workpiece to be cut. Then, by holding the workpiece to be clamped and rotating the base 10, or holding the base 10 and rotating the workpiece with the clamp, or rotating the workpiece to be clamped and the base 10 in the reverse direction, the cutter 20 can cut the workpiece to be clamped and complete the rotary cutting of the workpiece to be clamped.

[0050] It should be noted that the cutter 20 can be selected as a utility knife. The end of the cutter 20 is relatively sharp. When cutting, the cutter 20 can be switched to the cutting position. At this time, the sharp end of the cutter 20 can pierce into the softer workpiece to be cut or push against the outer wall of the workpiece to be cut. Then, through the above rotation, the rotary cutting of the workpiece to be cut can be realized. When the sharpness of the end of the cutter 20 cannot complete the cutting operation, based on the characteristics of the utility knife, the outermost section of the cutter 20 can be disassembled and then continue to be used, so that the cutting device 100 has higher durability and higher cutting efficiency.

[0051] According to the cutting device 100 of the embodiment of the present application, on the one hand, the cutter 20 can be switched between the cutting position and the storage position, which can reduce the cutting difficulty of the workpiece to be cut and also reduce the safety hazard; on the other hand, the cutter 20 can rotary cut the workpiece to be cut in the circumferential direction of the workpiece to be cut. During the cutting process, the radial extrusion force applied to the workpiece to be cut is smaller, the extrusion deformation of the workpiece to be cut is smaller, and the flatness of the cut can be improved.

[0052] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, according to some embodiments of the present application, the base 10 includes: a first plate 11 and a second plate 12, and the cutting tool 20 is disposed between the first plate 11 and the second plate 12.

[0053] Specifically, the first plate 11 and the second plate 12 can be configured to be fixed in a quick-release form such as plug-in fixation, snap fixation, or snap-fastener fixation, or can be configured to be threadedly fastened. The cutting tool 20 is clamped and fixed between the first plate 11 and the second plate 12, and the first plate 11 and the second plate 12 are configured to be in a detachable fastening form.

[0054] In this way, on the one hand, the fixing stability and reliability of the cutting tool 20 between the first plate 11 and the second plate 12 can be improved, the crosstalk of the cutting tool 20 below the cutting position can be reduced, the cutting quality and cutting efficiency can be improved, and the cut can be ensured to be flat. On the other hand, the replacement of the cutting tool 20 can be made simpler and more convenient.

[0055] Exemplarily, the first plate 11 and the second plate 12 are threadedly fastened. A first mounting hole is formed on the first plate 11, and a second mounting hole is formed on the second plate 12. The number and position of the first mounting holes on the first plate 11 correspond to the number and position of the second mounting holes on the second plate 12. The diameter of the first mounting hole is slightly larger than or equal to the diameter of the second mounting hole. For example, the diameter of the first mounting hole is 4 mm, and the diameter of the second mounting hole is 3 mm, and the second mounting hole is configured as a threaded hole. The fastener passes through the first mounting hole and is threadedly fastened to the second mounting hole to improve the connection stability and reliability between the first plate 11 and the second plate 12, and further improve the fixing stability and reliability of the cutting tool 20.

[0056] Such as Figure 2 As shown, according to some embodiments of the present application, a receiving groove 13 is provided on the first plate 11. The cutting tool 20 is movably disposed in the receiving groove 13, and the receiving groove 13 is at least open at one end adjacent to the fixture 30, so that when the cutting tool 20 is switched to the cutting position, at least a part of the cutting tool 20 extends out of the receiving groove 13.

[0057] Specifically, the receiving groove 13 is provided on the first plate 11, and the receiving groove 13 can at least penetrate through one end adjacent to the fixture 30 of the two length ends (i.e., the first end and the second end of the base 10) of the first plate 11, so that the cutting tool 20 can extend out of the receiving groove 13 and enter the interior of the fixture 30 to abut against the outer wall of the workpiece to be cut.

[0058] In this way, by providing the receiving groove 13, the cutting knife 20 can slide within the receiving groove 13, which can reduce the probability of interference between the cutting knife 20 and the first plate 11 and the second plate 12, making it easier to switch between the cutting position and the storage position of the cutting knife 20, improving the convenience of use, and enabling the protruding amount of the cutting knife 20 to be adjustable when the cutting knife 20 is in the cutting position, so that the cutting knife 20 can cut workpieces to be cut with different thicknesses. Based on the thickness of the workpiece to be cut, the protruding amount of the cutting knife 20 can be gradually increased to complete the cutting of a workpiece to be cut with a larger thickness through multiple rotary cuts.

[0059] It should be noted that the receiving groove 13 can penetrate through both ends of the length of the first plate 11, and two clamps 30 can be provided at both ends of the length of the first plate 11. The two clamps 30 can be used to clamp workpieces to be cut with different sizes, or one end can be used to fix the clamp 30, and the open side of the receiving groove 13 at the other end can be used for replacing the cutting knife 20, reducing the difficulty of replacing the cutting knife 20.

[0060] According to some embodiments of the present application, the depth of the receiving groove 13 is 0.6 mm to 1 mm.

[0061] Exemplarily, the depth of the receiving groove 13 is 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm. The depth of the receiving groove 13 is similar to the thickness of the cutting knife 20, and the edges of the opening side and the bottom wall of the receiving groove 13 are provided with rounded corners, which can reduce the probability of jamming and rubbing between the cutting knife 20 and the inner wall of the receiving groove 13, improve the movement stability of the cutting knife 20, and reduce the difficulty of position switching of the cutting knife 20. At the same time, the cutting knife 20 can be located within the receiving groove 13 to ensure the fitting of the first plate 11 and the second plate 12, improving the connection stability and reliability between the first plate 11 and the second plate 12, and further improving the fixing stability and reliability of the cutting knife 20 between the first plate 11 and the second plate 12.

[0062] As Figure 6 shown, according to some embodiments of the present application, the cutting device 100 further includes: an adjusting member 40. The cutting knife 20 is connected to the adjusting member 40. The adjusting member 40 is disposed on the base 10 and can be selectively locked to the base 10, so that the cutting knife 20 can be selectively locked in the cutting position or the storage position.

[0063] It can be understood that the adjusting member 40 is disposed on the base 10 and can be locked to the first plate 11 or the second plate 12. In the locked state, the cutting knife 20 can be locked in the cutting position or the storage position, so that the cutting knife 20 in the cutting position can maintain the protruding amount, improving the cutting stability and ensuring better consistency of the cutting amount during the rotary cutting process, improving the cutting quality. In the storage position, the cutting knife 20 can be prevented from protruding from the receiving groove 13, thereby improving safety and reducing potential safety hazards.

[0064] It should be noted that the adjusting member 40 can be arranged on the first plate 11 and selectively locked with the second plate 12. Based on the arrangement of the accommodating groove 13, the first plate 11 and the second plate 12 are attached to each other. When the adjusting member 40 is in the locked state, the adjusting member 40 can also be attached to the first plate 11, reducing the gap between the adjusting member 40 and the first plate 11, and also reducing the probability that the adjusting member 40 causes hand injuries to the operator during the rotary cutting process, further improving the use safety of the cutting device 100.

[0065] In addition, it can be understood that some pipes include an outer pipe and an inner core nested inside the outer pipe, or include an outer pipe and an inner pipe arranged inside the outer pipe. When using the cutter 20 or existing cutting equipment for cutting, while cutting the outer pipe, it is also easy to cause the inner core or inner pipe to be cut.

[0066] Based on this, the present application further arranges the adjusting member 40. The adjusting member 40 can not only lock the cutter 20 so that the cutter 20 can be locked in the cutting position and the storage position, but also the extension amount of the cutter 20 switched to the cutting position can be adjusted by the adjusting member 40. That is, when the cutter 20 is in the cutting position and the extension amount of the cutter 20 needs to be further increased or decreased, unlock the adjusting member 40 and make the cutter 20 slide in the accommodating groove 13. After the cutter 20 moves to an appropriate extension amount, further lock the cutter 20.

[0067] Among them, the workpiece to be cut can be a single-layer pipe structure or a nested double-layer pipe structure.

[0068] Thus, the control and adjustment of the extension amount of the cutter 20 can be realized to improve the applicability of the cutting device 100, and while the cutter 20 completes the cutting of the outer pipe, it can avoid the inner core or inner pipe, and protect the inner core or inner pipe while completing the cutting of the outer pipe, achieving the technical purpose of selective cutting.

[0069] It should be noted that in some special usage scenarios, the cutting device 100 of the embodiment of the present application can be configured as a pen refill holder cutting device, the workpiece to be cut is configured as a pen refill holder 300 of a cartridge injection pen, both the pen refill holder 300 and the pen refill 200 extend into the fixture 30, and the cutter 20 is suitable for cutting the pen refill holder 300.

[0070] Specifically, for the currently used cartridge injection pen (such as those for semaglutide, insulin, growth hormone, etc.), in order to protect the internal medicament, the cartridge holder 300 is generally designed as a disposable cartridge holder 300. After the cartridge 200 (i.e., the medicament container) is assembled with the cartridge holder 300, it cannot be disassembled again. After the cartridge holder 300 with the cartridge 200 is fixed to the injection structure, the cartridge holder 300 is self-locked and the cartridge 200 cannot be disassembled, which can ensure the effective protection of the internal medicament during transportation and use.

[0071] However, in some cases, the internal medicament needs to be sent for inspection (such as sent to the national drug inspection center for testing). However, the locking structure between the cartridge holder 300 and the cartridge 200 makes it difficult to disassemble the cartridge 200. It is necessary to cut the cartridge holder 300. The cartridge holder 300 has a certain toughness, and the cutting is difficult and requires a large cutting force. Moreover, a large cutting force is likely to cause damage to the internal cartridge 200 and even cause the operator to cut their hand.

[0072] It can be understood that, referring to Figure 4 and Figure 5 as shown, in the embodiment where the cutting device 100 of the present application is configured as a cartridge holder cutting device, the cartridge holder 300 is equivalent to the outer tube of the present application above, and the cartridge 200 is equivalent to the inner tube above. When cutting, the cutter 20 can be adjusted to the Figure 5 position shown, and the cartridge holder 300 is rotated and cut. Not only can the disassembly of the cartridge holder 300 and the cartridge 200 be realized, the disassembly difficulty can be reduced, but also the probability of damage to the cartridge 200 is lower and the safety is higher during the disassembly process.

[0073] That is to say, in the prior art, a cutting device 100 that can realize the disassembly between the cartridge holder 300 and the cartridge 200 is not disclosed. The cutting device 100 of the embodiment of the present application can be configured as a dedicated cutting device 100 for cutting the cartridge holder 300, filling the technical gap in this technical field, enabling the rapid cutting and disassembly between the cartridge 200 and the cartridge holder 300, reducing the disassembly difficulty, and improving the disassembly safety.

[0074] Combined with Figure 2 、 Figure 3 and Figure 6 as shown, according to some embodiments of the present application, the base 10 includes a first plate 11 and a second plate 12, and the adjusting member 40 is disposed on the first plate 11 and is adapted to be selectively locked with the second plate 12.

[0075] Specifically, a first groove 14 is provided on the first plate 11, a second groove 15 is provided on the second plate 12, the adjusting member 40 is configured as a screw, and the adjusting member 40 passes through the first groove 14 and is threadedly engaged with the second groove 15 for locking.

[0076] It should be noted that the width of the first slot 14 can be greater than or equal to the width of the second slot 15. The adjusting member 40 passes through the first slot 14 and extends into the second slot 15. A through hole can be provided on the cutter 20, and the adjusting member 40 passes through the through hole so that the adjusting member 40 can slide along the first slot 14 and drive the cutter 20 to slide along the receiving slot 13. The adjusting member 40 can be locked with the second slot 15 to switch between the storage position and the cutting position, and the extension amount of the cutter 20 in the cutting position can be adjusted to meet different cutting requirements.

[0077] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, according to some embodiments of the present application, the fixture 30 has an avoidance slot 32 and a clamping hole 31 communicating with the avoidance slot 32. In the cutting position, the cutter 20 is adapted to pass through the avoidance slot 32 and at least partially extend into the clamping hole 31.

[0078] Specifically, the clamping hole 31 can be used to clamp and fix the workpiece to be cut, or the workpiece to be cut can pass through the clamping hole 31. The avoidance slot 32 communicates with the clamping hole 31, and the avoidance slot 32 communicates with the receiving slot 13, so that the cutter 20 can pass through the avoidance slot 32 and at least partially extend into the clamping hole 31, and the part of the cutter 20 extending into the clamping hole 31 can cut the workpiece to be cut located in the clamping hole 31.

[0079] It can be understood that, in some embodiments, the fixture 30 and the base 10 can be integrally formed, and the fixture 30 is configured as a size-adjustable structure so that the size of the clamping hole 31 is adjustable to adapt to the use of workpieces to be cut of different sizes. The first hole section 311 and the observation part 33 are formed on the first plate 11, the second hole section 312 is formed on the second plate 12, and the receiving slot 13 communicates with the avoidance slot 32 or can be formed as a through slot. In other embodiments, the fixture 30 and the base 10 can be configured as a detachable structure. For example, there can be multiple fixtures 30 with different sizes of clamping holes 31, and the fixture 30 can be detachably arranged on the base 10 through a quick-release structure. Each fixture 30 is configured as an assembly block, and a clamping hole 31, an avoidance slot 32 and an observation part 33 are formed therein, and the avoidance slot 32 of the fixture 30 communicates with the receiving slot 13 of the base 10 after being assembled on the base 10.

[0080] Combined with Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the fixture 30 further includes: an observation part 33. The avoidance hole includes a first hole section 311 and a second hole section 312. The apertures of the first hole section 311 and the second hole section 312 are the same, and an observation part 33 is provided on the first hole section 311. The observation part 33 is used to observe the position of the cutter 20.

[0081] Thus, the position of the cutter 20 can be observed by the observation portion 33, so that the operator can judge the current position of the cutter 20, and based on the position of the cutter 20, adaptively adjust the extension amount of the cutter 20, so as to improve the adjustment convenience of the cutting device 100 and reduce the cutting difficulty.

[0082] It can be understood that in some embodiments, the outer tube has high toughness and a groove structure is provided on the outer tube. In order to reduce the cutting difficulty, the cutter 20 can be inserted into the groove structure of the outer tube and then rotated for cutting. With the arrangement of the observation portion 33, it is easier for the operator to switch the cutter 20 to extend into the groove structure, reducing the operation difficulty and the cutting difficulty.

[0083] Combined with Figure 2 and Figure 3 As shown, the first hole section 311 has a first cutting edge 331 parallel to the length edge of the base 10 and a second cutting edge 332 parallel to the width edge of the base 10. Both the first cutting edge 331 and the second cutting edge 332 are tangent to the projection circle of the first hole section 311, and the hollowed-out area defined by the first cutting edge 331 and the second cutting edge 332 forms the observation portion 33.

[0084] Thus, the position of the observation portion 33 corresponds to the area where the tip of the cutter 20 is located, making the observation of the extension position of the cutter 20 simpler and more convenient.

[0085] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0086] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cutting device (100), characterized in that: include: Base (10); a cutter (20), the cutter (20) being movably disposed on the base (10) and being adapted to move relative to the base (10) so as to switch between a cutting position and a storage position; A clamp (30), the clamp (30) being located at one end of the base (10), the clamp (30) being suitable for clamping and fixing the workpiece to be cut in the circumferential direction, and when the cutter (20) is in the cutting position, at least a portion of the cutter (20) extends into the clamp (30) and pushes against the outer wall of the workpiece to be cut in the circumferential direction of the workpiece to be cut, so as to rotary cut the workpiece to be cut.

2. The cutting device (100) according to claim 1, characterized in that: The base (10) comprises a first plate (11) and a second plate (12), and the cutter (20) is arranged between the first plate (11) and the second plate (12).

3. The cutting device (100) according to claim 2, characterized in that: The first plate (11) is provided with a receiving groove (13), the cutter (20) is movably arranged in the receiving groove (13), and the receiving groove (13) is open at least at one end adjacent to the clamp (30), so that when the cutter (20) is switched to the cutting position, it at least partially extends out of the receiving groove (13).

4. The cutting device (100) according to claim 3, characterized in that: The depth of the accommodating groove (13) is 0.6 mm to 1 mm.

5. The cutting device (100) according to claim 1, characterized in that: The cutting device (100) further comprises: an adjusting member (40), the cutting knife (20) being connected to the adjusting member (40), the adjusting member (40) being arranged on the base (10) and selectively lockable with the base (10), so that the cutting knife (20) can be selectively locked in the cutting position or the storage position.

6. The cutting device (100) according to claim 5, characterized in that: The base (10) comprises a first plate (11) and a second plate (12); the adjusting member (40) is arranged on the first plate (11) and is suitable for selectively locking with the second plate (12).

7. The cutting device (100) according to claim 6, characterized in that The first plate (11) is provided with a first groove (14), the second plate (12) is provided with a second groove (15), the adjusting member (40) is constructed as a screw, the adjusting member (40) passes through the first groove (14) and is threadedly engaged with the second groove (15) for locking.

8. The cutting device (100) according to claim 3, characterized in that: The clamp (30) has an avoidance groove (32) and a clamping hole (31) connected to the avoidance groove (32); in the cutting position, the cutter (20) is suitable for penetrating the avoidance groove (32) and at least partially extending into the clamping hole (31).

9. The cutting device (100) according to claim 8, characterized in that: The clamp (30) further comprises: an observation portion (33), the avoidance hole comprising a first hole segment (311) and a second hole segment (312), the first hole segment (311) and the second hole segment (312) having the same hole diameter, the first hole segment (311) being provided with the observation portion (33), and the observation portion (33) being used to observe the position of the cutter (20).

10. The cutting device (100) according to claim 9, characterized in that The first hole section (311) has a first cutting edge (331) parallel to the length edge of the base (10) and a second cutting edge (332) parallel to the width edge of the base (10); the first cutting edge (331) and the second cutting edge (332) are both tangent to the projection circle of the first hole section (311); and a hollow area defined by the first cutting edge (331) and the second cutting edge (332) forms the observation portion (33).

11. The cutting device (100) according to claim 9, characterized in that: The base (10) and the clamp (30) are integrally formed, the first hole section (311) and the observation portion (33) are formed on the first plate (11), the second hole section (312) is formed on the second plate (12), and the accommodating groove (13) is connected to the avoidance groove (32).

12. The cutting device (100) according to claim 8, characterized in that The clamp (30) is detachably arranged on the end of the base (10).

13. The cutting device (100) according to any one of claims 1 to 12, characterized in that: The cutting device (100) is configured as a cartridge frame cutting device, the part to be cut is a cartridge frame (300) of a cartridge injection pen, the cartridge frame (300) and the cartridge (200) both extend into the clamp (30), and the cutter (20) is suitable for cutting the cartridge frame (300).

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