Cutting tool

Abstract

The invention provides a cutting tool, and relates to the technical field of articles for daily use, the cutting tool comprises a tool, a driving mechanism, an elastic return part and a tool handle mechanism, the tool is movably arranged on the tool handle mechanism; the driving mechanism is fixedly arranged on the cutter handle mechanism and is in driving connection with the cutter, and the driving mechanism can drive the cutter to perform feeding action; the elastic return part is arranged on the cutter handle mechanism and is connected with the cutter, the feeding action of the cutter enables the elastic return part to generate telescopic deformation, and the elastic return part in the telescopic deformation state can drive the cutter to return; through the cutter handle mechanism, on one hand, a user can hold the cutter conveniently, on the other hand, the cutter, the driving mechanism, the elastic return part and other parts can be firmly installed and supported, the premise is provided for cutting, through mutual cooperation of the driving mechanism and the elastic return part, reciprocating feeding and retreating actions of the cutter can be achieved, the cutting effect is remarkable, and the cutting efficiency is improved. And the cutting efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of daily necessities, and in particular to a cutting tool. Background Art

[0002] As a tool for cutting objects, knives are widely used in current life and mechanical processing and manufacturing.

[0003] Existing knives for daily use, such as fruit knives, kitchen knives, etc., usually include a fixedly connected handle and a blade. When using, the user holds the handle, points the blade at the object, and then cuts the object by moving the blade back and forth. Traditional knives with fixed structures cannot automatically cut objects, are laborious and inconvenient to use, and have low efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a cutting tool to solve the above-mentioned technical problems existing in the prior art; the preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects; see the following description for details.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cutting tool provided by the present invention comprises a tool, a driving mechanism, an elastic return member and a tool handle mechanism, wherein: the tool is movably arranged on the tool handle mechanism; the driving mechanism is fixedly arranged on the tool handle mechanism and is connected to the tool driving, and the driving mechanism can drive the tool to feed; the elastic return member is arranged on the tool handle mechanism and is connected to the tool, and the tool feeding action can cause the elastic return member to undergo telescopic deformation, and the elastic return member in telescopic deformation can drive the tool to return.

[0007] Preferably, the tool comprises an integrally arranged bolster section and a blade section, wherein: the bolster section is axially movably inserted in the handle mechanism and is drivingly connected to the driving mechanism; the blade section is used for cutting.

[0008] Preferably, the driving mechanism is configured as a power component, a cam and an abutment component, the power component is fixedly arranged on the tool handle mechanism, the cam is connected to the output end of the power component and can rotate under the drive of the power component, the abutment component is arranged on the tool, the abutment component abuts against the cam, and the rotation of the cam can push the abutment component to move so as to feed the tool; the abutment component includes a mounting frame and a rolling member, the mounting frame is fixedly arranged on the tool; the rolling member is rotatably arranged on the mounting frame and abuts against the cam.

[0009] Preferably, a heat dissipation structure is provided on the cam; the heat dissipation structure comprises heat dissipation grooves uniformly distributed on the end surface of the cam along the circumferential direction.

[0010] Preferably, the elastic return member is configured as a spring sheet, and a mounting portion is provided on the tool handle mechanism, wherein: a mounting portion is provided on the mounting section of the spring sheet, and the mounting section is fixedly connected to the tool handle mechanism through the mounting portion; the elastic section of the spring sheet is connected to the limiting portion, and when the tool is fed, the elastic section can undergo telescopic deformation.

[0011] Preferably, the number of the elastic sections is set to two, the two elastic sections are respectively a first elastic section and a second elastic section, the first elastic section and the second elastic section are respectively arranged on both sides of the mounting section; the limiting portion includes a first limiting slot and a second limiting slot, the first elastic section is clamped on the first limiting slot, and the end of the second elastic section is clamped on the second limiting slot; when the tool feeds, the first elastic section can be compressed and deformed, and the second elastic section can be stretched and deformed at the same time.

[0012] Preferably, a guide groove matched with the tool is formed on the spring sheet, and the tool passes through the guide groove and is slidably matched with the guide groove.

[0013] Preferably, the handle mechanism comprises a first handle shell, a second handle shell and an elastic telescopic sleeve, wherein: the first handle shell and the second handle shell are detachably connected and form an installation cavity, the knife pillow section is movably inserted in the installation cavity, and the driving mechanism and the elastic return member are both located in the installation cavity; the elastic telescopic sleeve is arranged on the outside of the knife pillow section, and its two ends are respectively fixedly connected to the tool and the handle mechanism.

[0014] Preferably, the cutting tool also includes an electric control mechanism, which includes a power supply, a circuit board and a switch, wherein: the power supply and the circuit board are both arranged on the handle mechanism; the switch is arranged on the handle mechanism and is electrically connected to the circuit board, and the switch is used for start and stop control of the drive mechanism.

[0015] Preferably, the tool can be offset and arranged on the tool handle mechanism. The tool can be offset when subjected to cutting resistance and abut against the trigger end of the switch to start the driving mechanism. The tool offset can drive the elastic return member to undergo an offset deformation. The elastic return member in the offset deformation can drive the tool to return after the cutting resistance is eliminated and separate the tool from the trigger end of the switch to stop the driving mechanism.

[0016] The cutting tool provided by the present invention has at least the following beneficial effects:

[0017] The cutting tool comprises a tool, a driving mechanism, an elastic return member and a handle mechanism. The tool is used for cutting objects. The driving mechanism and the elastic return member cooperate with each other so that the tool can automatically perform cutting actions. The handle mechanism is used for installing components such as the tool, the driving mechanism and the elastic return member, and is convenient for users to hold.

[0018] The tool is movably arranged on the tool handle mechanism, the driving mechanism is fixedly arranged on the tool handle mechanism and is connected to the tool driving, the elastic return member is arranged on the tool handle mechanism and is connected to the tool. When cutting an object, the driving mechanism works to drive the tool to feed, the tool in the feeding state causes the elastic return member to deform, and the elastic return member in the deformed state generates elastic force, which can drive the tool to retreat, and this process is repeated to achieve cutting of the object.

[0019] The present invention uses a knife handle mechanism that is convenient for users to hold on the one hand, and can firmly install and support components such as a knife, a driving mechanism, and an elastic return member on the other hand, providing a prerequisite for cutting. Through the cooperation between the driving mechanism and the elastic return member, the reciprocating feeding and retreating action of the knife can be realized, which not only has a significant cutting effect but also has a high cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a front view schematic diagram of the present invention;

[0022] Figure 2 is a top view schematic diagram of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the tool driving part of the cutting tool of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the handle portion of the cutting tool of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the tool of the present invention;

[0026] Figure 6 is a front view schematic diagram of the tool of the present invention;

[0027] Figure 7 It is an enlarged view of the A part of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the power assembly of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the cam of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the mounting frame of the present invention;

[0031] Fig.11 is a schematic end view of the mounting bracket of the present invention;

[0032] Fig.12 It is a schematic structural diagram of a rolling element of the present invention;

[0033] Fig.13 It is a structural schematic diagram of the installation shaft of the present invention;

[0034] Fig.14 It is a schematic structural diagram of the elastic return member of the present invention;

[0035] Fig.15 is a front view schematic diagram of a first knife handle body of the present invention;

[0036] Fig.16 is a bottom view schematic diagram of the first knife handle body of the present invention;

[0037] Fig.17 is a top view schematic diagram of the first knife handle body of the present invention;

[0038] Fig.18 is a schematic structural diagram of the second knife handle body of the present invention;

[0039] Fig.19 It is a structural schematic diagram of the elastic telescopic sleeve of the present invention;

[0040] Fig. 20 It is a schematic diagram of the main view of the elastic telescopic sleeve of the present invention;

[0041] Fig.21 It is a structural schematic diagram of a circuit board of the present invention from one viewing angle;

[0042] Fig. 22 is a schematic structural diagram of the circuit board of the present invention from another perspective;

[0043] Fig.23 It is a structural schematic diagram of the switch of the present invention;

[0044] Fig.24 It is a structural schematic diagram of the waterproof plug of the present invention from one perspective;

[0045] Fig.25 It is a structural schematic diagram of the waterproof plug of the present invention from another perspective.

[0046] Reference numerals

[0047] 1. tool; 11. blade section; 12. bolster section; 13. limiter; 131. first limiter slot; 132. second limiter slot; 14. fixing plate; 2. drive mechanism; 21. power assembly; 22. cam; 221. heat sink; 23. abutment assembly; 231. mounting bracket; 2311. mounting hole; 232. rolling element; 233. mounting shaft; 3. elastic return element; 31. mounting section; 311. mounting section; 32. first elastic section; 33. second elastic section; 34. guide groove; 4. handle mechanism; 41. first handle shell Body; 411, mounting plate; 412, mounting column; 413, battery slot; 414, circuit board mounting position; 415, switch mounting position; 416, telescopic sleeve slot; 417, socket slot; 418, fixing slot; 42, second shank shell; 421, heat dissipation hole; 43, elastic telescopic sleeve; 431, fixing section; 4311, fixing groove; 432, telescopic section; 5, electric control mechanism; 51, circuit board; 511, USB socket; 52, power supply; 53, switch; 531, trigger end; 6, waterproof plug; 61, plug; 62, mounting head. DETAILED DESCRIPTION

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] Embodiment 1:

[0050] The present invention provides a cutting tool, referring to Figures 1 to 4 As shown, the cutting tool comprises a tool 1, a driving mechanism 2, an elastic return member 3 and a tool handle mechanism 4.

[0051] The tool 1 is movably arranged on the tool handle mechanism 4, and the tool 1 is used for cutting objects; the driving mechanism 2 is fixedly arranged on the tool handle mechanism 4 and is connected to the tool 1, and the driving mechanism 2 can drive the tool 1 to feed; the elastic return member 3 is arranged on the tool handle mechanism 4 and is connected to the tool 1.

[0052] When cutting an object, the user holds the knife handle mechanism 4, the driving mechanism 2 is started, and the knife 1 is driven to complete the feeding action. During this process, the elastic return member 3 undergoes telescopic deformation.

[0053] Afterwards, the elastic return member 3 in the telescopic deformation state generates an elastic restoring force, driving the tool 1 to retreat.

[0054] This process is repeated to achieve the cutting of objects.

[0055] The present invention uses the handle mechanism 4 to facilitate the user's grip and cutting operation on the one hand, and can firmly install and support the tool 1, the drive mechanism 2, the elastic return member 3 and other components on the other hand, providing a prerequisite for subsequent cutting actions.

[0056] Through the cooperation between the driving mechanism 2 and the elastic return member 3, the tool 1 can be automatically fed and retracted, which is labor-saving and convenient to operate. Not only is the cutting effect significant, but the cutting efficiency is also high.

[0057] Embodiment 2:

[0058] Example 2 is based on Example 1:

[0059] like Figures 1 to 25 As shown, the tool 1 includes a bolster segment 12 and a blade segment 11, and the bolster segment 12 and the blade segment 11 are integrally arranged.

[0060] The bolster segment 12 is used for installation. It is inserted into the shank mechanism 4 movably along the axial direction and is drivingly connected to the driving mechanism 2 .

[0061] The blade segment 11 is used for cutting. The blade segment 11 can be set as a single blade, one side of which is a blade edge, or the blade segment 11 can be set as a double blade, both sides of which are blade edges.

[0062] As an optional embodiment, the driving mechanism 2 is configured to include a power assembly 21 , a cam 22 and an abutment assembly 23 , and the power assembly 21 is an electric power assembly including a driving motor.

[0063] The power assembly 21 is fixedly arranged on the tool handle mechanism 4 , the cam 22 is connected to the output end of the power assembly 21 and can rotate under the drive of the power assembly 21 , and the abutment assembly 23 is arranged on the tool 1 and abuts against the cam 22 .

[0064] When in use, the output end of the power assembly 21 rotates, driving the cam 22 to rotate, and the cam 22 pushes the abutment assembly 23 to move, thereby realizing the feeding action of the tool 1.

[0065] The cam 22 and the abutment assembly 23 cooperate with each other to form a cam transmission mechanism, which can effectively convert the rotational action of the power assembly 21 into the movement action of the abutment assembly 23, realize intermittent pushing of the tool 1 to feed, and cooperate with the elastic return member 3 to achieve a significant driving effect.

[0066] As an optional implementation, the abutment assembly 23 includes a mounting frame 231 and a rolling member 232 .

[0067] The mounting frame 231 includes a connecting plate and two ear plates symmetrically arranged on both sides of the connecting plate; a mounting hole 2311 is arranged on the connecting plate, and a fixing plate 14 is arranged at the end of the bolster section 12 of the tool 1. The threaded fastener passes through the mounting hole 2311 and is connected to the fixing plate 14, thereby connecting the mounting frame 231 to the tool 1; a mounting shaft 233 is arranged between the two ear plates, and a rolling element 232 is installed on the mounting shaft 233 and abuts against the cam 22. The rolling element 232 is made of balls, rollers, rollers, etc., preferably bearings.

[0068] The use of the rolling element 232 in contact with the cam 22 can effectively reduce friction loss and extend the service life of the components.

[0069] As an optional implementation, a heat dissipation structure is provided on the cam 22 , and the heat dissipation structure is used for dissipating heat of the driving mechanism 2 .

[0070] The heat dissipation structure includes heat dissipation grooves 221 uniformly distributed on the end surface of the cam 22 along the circumferential direction. The heat dissipation grooves 221 are sunken grooves, and their cross-sections are arranged in a sector shape.

[0071] In this way, when the cam 22 rotates, the airflow can be effectively disturbed, thereby achieving the effect of heat dissipation.

[0072] In order to further improve the heat dissipation effect, a plurality of heat dissipation holes 421 are provided at positions of the handle mechanism 4 corresponding to the driving mechanism 2 .

[0073] Alternatively, in actual application, the driving mechanism 2 may also adopt a telescopic mechanism, and an electric push rod may be selected.

[0074] As an optional embodiment, the elastic return member 3 is configured as a spring clip, a limiting portion 13 is provided on the tool 1, a mounting portion 311 is provided on the mounting segment 31 of the spring clip, and the mounting portion 311 is configured as a through hole. A threaded fastener is used to pass through the through hole and connect it to the handle mechanism 4, so that the mounting segment 31 can be firmly mounted on the handle mechanism 4.

[0075] The elastic section of the spring is connected to the limiting portion 13 . When the tool 1 is in the feeding motion, the mounting section 31 is fixed, and the elastic section undergoes telescopic deformation to provide elastic force for the subsequent retreating motion of the tool 1 .

[0076] As an optional embodiment, the number of the elastic sections is set to two, and the two elastic sections are respectively a first elastic section 32 and a second elastic section 33. The first elastic section 32 and the second elastic section 33 are respectively arranged on both sides of the mounting section 31. The first elastic section 32, the mounting section 31 and the second elastic section 33 are integrally arranged. The mounting section 31 is set to a straight section for easy installation. The first elastic section 32 and the second elastic section 33 are both set to corrugated sections with good elasticity.

[0077] The limiting portion 13 includes a first limiting slot 131 and a second limiting slot 132 . An end of the first elastic section 32 is clamped on the first limiting slot 131 , and an end of the second elastic section 33 is clamped on the second limiting slot 132 .

[0078] When the tool 1 is pushed forward by the abutment assembly 23, the mounting section 31 is fixed on the tool handle mechanism 4. The tool 1 squeezes the first elastic section 32 to cause compression deformation, and pulls the second elastic section 33 to cause tension deformation.

[0079] The first elastic section 32 in the compressive deformation state and the second elastic section 33 in the tensile deformation state cooperate with each other to provide sufficient elastic restoring force, and the retreat action effect is significant, further improving the cutting effect.

[0080] As an optional embodiment, a guide groove 34 is opened on the first elastic section 32 and the second elastic section 33 of the spring piece along the axial direction of the tool 1, and the guide groove 34 matches the size of the tool 1. The tool 1 passes through the guide groove 34 and slides with the guide groove 34.

[0081] On the one hand, the guide groove 34 can effectively limit the movement trajectory of the tool 1 to prevent it from deviating in the left and right directions, so that it can stably extend and retract during the cutting process. On the other hand, the tool 1 is not limited in the up and down directions, so that it can deviate in the up and down directions when encountering cutting resistance.

[0082] As an optional implementation, the handle mechanism 4 includes a first handle housing 41 , a second handle housing 42 and an elastic telescopic sleeve 43 .

[0083] The first handle shell 41 is an upper shell, and the second handle shell 42 is a lower shell. The first handle shell 41 is detachably arranged on the upper side of the second handle shell 42 by means of threaded fasteners. The first handle shell 41 and the second handle shell 42 form an installation cavity.

[0084] The bolster section 12 is movably inserted in the installation cavity, a mounting plate 411 is provided in the installation cavity, the power assembly 21 is fixedly provided on the mounting plate 411, and the elastic return member is located in the installation cavity.

[0085] In this way, on the one hand, the structure is compact, and on the other hand, the handle mechanism 4 can effectively protect components such as the driving mechanism 2 and the elastic return member 3.

[0086] A telescopic sleeve clamping position 416 is provided at the end of the first handle shell 41 and the second handle shell 42 away from the blade section 11, and the elastic telescopic sleeve 43 includes a fixed section 431 and a telescopic section 432 which are integrally arranged. A fixing groove 4311 is opened on the outer wall of the fixed section 431 along the circumference, and the fixed section 431 is clamped on the telescopic sleeve clamping position 416 through the fixing groove 4311, and one end of the telescopic section 432 away from the fixed section 431 is fixedly connected to the position where the bolster section 12 and the blade section 11 are connected.

[0087] The elastic telescopic sleeve 43 is a silicone sleeve, which has a waterproof effect without affecting the telescopic action of the tool 1.

[0088] As an optional implementation, the cutting tool further includes an electric control mechanism 5 , and the electric control mechanism 5 includes a power supply 52 , a circuit board 51 and a switch 53 .

[0089] A battery clamping position 413, a circuit board mounting position 414 and a switch mounting position 415 are provided in the mounting cavity. The power supply 52 is provided on the battery clamping position 413, the circuit board 51 is installed on the circuit board mounting position 414, and the switch 53 is installed on the switch mounting position 415. The power supply 52 is used to provide electrical energy, and the switch 53 is electrically connected to the circuit board 51, and cooperates with the circuit board 51 for start and stop control of the driving mechanism 2.

[0090] As an optional embodiment, the bolster segment 12 can be offset along the vertical direction on the guide groove 34, the trigger end of the switch 53 faces the back of the bolster segment 12, and the elastic return member 3 can move with the offset of the bolster segment 12.

[0091] When in use, the user holds the handle mechanism 4 to make the blade segment 11 contact the object to be cut. During the cutting process, the object produces a cutting resistance on the blade segment 11 that is away from its edge, causing the tool 1 to shift. At this time, the elastic return member 3 shifts and deforms, and the blade pillow segment 12 abuts against the trigger end 531 of the switch 53, thereby causing the drive mechanism 2 to continue to operate.

[0092] In the above process, if the object is not cut through, cutting resistance away from the blade edge will always be generated during cutting, and the driving mechanism 2 will always be in action until the object is completely cut through and the cutting resistance is eliminated. The elastic return member 3 in the offset deformation generates elastic force to push the back of the knife pillow segment 12 to return the knife 1, thereby separating the knife pillow segment 12 from the trigger end 531 of the switch 53, and the driving mechanism 2 stops.

[0093] With such arrangement, the driving mechanism 2 can automatically start and stop according to the cutting state, and the operation is extremely convenient.

[0094] Alternatively, in actual application, the switch 53 may be configured as a push switch, with a push end located outside the handle mechanism 4 , and the user manually presses the push end to control the start and stop of the drive mechanism 2 .

[0095] As an optional implementation, the circuit board 51 is electrically connected to a USB socket 511 , and a socket slot 417 is provided on the shell wall of the first handle shell 41 at a position corresponding to the USB socket 511 .

[0096] The USB plug can be plugged into the USB socket 511 through the socket slot 417 to charge the power source 52 .

[0097] In order to ensure the waterproof effect of the cutting tool when not charging, a waterproof plug 6 is provided to seal the USB socket 511. The waterproof plug 6 is provided with a plug 61 and a mounting head 62. A fixing groove 418 is provided on the first handle shell 41. The mounting head 62 is fixed in the fixing groove 418. The plug 61 is adapted to the USB socket 511 and is plugged into the USB socket 511, which has a significant waterproof effect.

[0098] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", "top", "bottom", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0100] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0101] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A cutting tool, characterized in that: It includes a tool, a driving mechanism, an elastic return member and a tool handle mechanism, wherein: The tool is movably arranged on the tool handle mechanism; The driving mechanism is fixedly arranged on the tool handle mechanism and is drivingly connected to the tool, and the driving mechanism can drive the tool to feed; The elastic return member is arranged on the tool handle mechanism and is connected to the tool. The tool feeding action can cause the elastic return member to undergo telescopic deformation, and the elastic return member in telescopic deformation can drive the tool to return.

2. The cutting tool according to claim 1, characterized in that The tool comprises a bolster section and a blade section which are integrally arranged, wherein: The bolster section is axially movable and inserted into the shank mechanism, and is drivingly connected to the driving mechanism; The blade section is used for cutting.

3. The cutting tool according to claim 1, characterized in that The driving mechanism is provided with a power assembly, a cam and an abutment assembly, wherein the power assembly is fixedly provided on the tool handle mechanism, the cam is connected to the output end of the power assembly and can rotate under the drive of the power assembly, the abutment assembly is provided on the tool, the abutment assembly abuts against the cam, and the rotation of the cam can push the abutment assembly to move, so as to enable the tool to feed; The abutment assembly comprises a mounting frame and a rolling element. The mounting frame is fixedly arranged on the tool; the rolling element is rotatably arranged on the mounting frame and abuts against the cam.

4. The cutting tool according to claim 3, characterized in that The cam is provided with a heat dissipation structure; The heat dissipation structure comprises heat dissipation grooves uniformly distributed on the cam end surface along the circumferential direction.

5. The cutting tool according to claim 1, characterized in that: The elastic return member is configured as a spring sheet, and a limiting portion is configured on the tool, wherein: The mounting section of the spring sheet is provided with a mounting portion, and the mounting section is fixedly connected to the knife handle mechanism through the mounting portion; The elastic section of the spring sheet is connected to the limiting portion, and when the tool is feeding, the elastic section can undergo telescopic deformation.

6. The cutting tool according to claim 5, characterized in that The number of the elastic segments is set to two, the two elastic segments are respectively a first elastic segment and a second elastic segment, and the first elastic segment and the second elastic segment are respectively arranged on both sides of the mounting segment; The limiting portion includes a first limiting slot and a second limiting slot, the first elastic section is clamped on the first limiting slot, and the end of the second elastic section is clamped on the second limiting slot; When the tool is in feeding motion, the first elastic section can be compressed and deformed, and the second elastic section can be stretched and deformed at the same time.

7. The cutting tool according to claim 5, characterized in that The spring sheet is provided with a guide groove matched with the tool, and the tool passes through the guide groove and is slidably matched with the guide groove.

8. The cutting tool according to claim 2, characterized in that: The handle mechanism comprises a first handle housing, a second handle housing and an elastic telescopic sleeve, wherein: The first handle shell and the second handle shell are detachably connected and enclose a mounting cavity, the bolster section is movably inserted in the mounting cavity, and the driving mechanism and the elastic return member are both located in the mounting cavity; The elastic telescopic sleeve is arranged on the outside of the knife pillow section, and two ends thereof are respectively fixedly connected to the knife and the knife handle mechanism.

9. The cutting tool according to claim 1, characterized in that The cutting tool further comprises an electric control mechanism, which comprises a power supply, a circuit board and a switch, wherein: The power supply and the circuit board are both arranged on the handle mechanism; The switch is arranged on the handle mechanism and is electrically connected to the circuit board. The switch is used for starting and stopping control of the driving mechanism.

10. The cutting tool according to claim 9, characterized in that The tool can be offset and arranged on the tool handle mechanism. The tool can be offset by the cutting resistance and abut against the trigger end of the switch to start the driving mechanism. The tool offset can drive the elastic return member to undergo offset deformation. The elastic return member in offset deformation can drive the tool to return after the cutting resistance is eliminated, and separate the tool from the trigger end of the switch to stop the driving mechanism.

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