Tool bit device with novel fixing piece structure

Abstract

A tool bit device with a novel fixing piece structure comprises a tool bit assembly and a fixing piece, a limiting inserting groove is formed between a tool bit limiting part and a tool bit connecting part on the fixing piece, effective fixing and limiting of the tool bit assembly can be achieved, and the tool bit assembly is prevented from shaking or falling off in the working process. And the bottom end of the long edge part is aligned with the limiting slot and inserted, so that the working efficiency is greatly improved. Meanwhile, due to the design of the limiting inserting grooves, the contact area between the limiting inserting grooves and the tool bit assembly is increased, the structural strength of the whole tool bit device is improved, and the tool bit device is more stable and reliable in the using process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hair cutting equipment, in particular to a cutter head device with a novel fixed sheet structure. BACKGROUND

[0002] In the prior art, the static seat in the cutter head device of a shaving cutter is usually of a hollow open structure, so that the static seat will be deformed by being extruded towards the center after being subjected to force, thereby causing the gap between the static cutter and the dynamic cutter to change, affecting the shaving effect. Therefore, there is an urgent need for a cutter head device with higher structural strength and stability to meet actual needs. SUMMARY

[0003] In view of this, the present application provides a cutter head device with a novel fixed sheet structure.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A cutter head device with a novel fixed sheet structure, comprising a cutter head assembly and a fixed sheet, the cutter head assembly having two opposite long edge portions, the fixed sheet being arranged at the bottom of the long edge portion and connected with the cutter head assembly, the fixed sheet having a cutter head limiting portion and a cutter head connecting portion, the cutter head limiting portion being protruded and formed at the center position of the fixed sheet towards the cutter head assembly, the cutter head connecting portion being arranged at both sides of the fixed sheet body, a concave-convex connecting structure being arranged between the cutter head connecting portion and the long edge portion of the cutter head assembly, and the cutter head connecting portion and the long edge portion of the cutter head assembly being concave-convex matched through the concave-convex connecting structure.

[0005] Preferably, the concave-convex matching structure is a limiting slot formed between the cutter head limiting portion and the cutter head connecting portion and a plug-in portion corresponding to the limiting slot at the bottom end of the long edge portion, and the plug-in portion at the bottom end of the long edge portion of the cutter head assembly extends into the limiting slot and is limited by the fixed sheet.

[0006] Preferably, the cutter head connecting portion is arranged by being bent from both sides of the fixed sheet towards the outer wall of the long edge portion of the cutter head assembly, a buckle slot is formed on the cutter head connecting portion, the buckle slot has an upper slot wall and a lower slot wall, and the top of the cutter head limiting portion is located between the upper slot wall and the lower slot wall of the buckle slot.

[0007] Preferably, the outer wall of the long edge portion is concave to form a fixed sheet connecting portion, a buckle end is protruded and formed on the fixed sheet connecting portion, and the buckle end extends into the buckle slot between the fixed sheet and the cutter head connecting portion and is buckled and connected.

[0008] Preferably, reinforcing ribs are arranged on the opposite inner walls of both sides of the limiting slot, the reinforcing ribs are arranged alternately, and the outer wall of the limiting slot is concave at the portion corresponding to the reinforcing ribs.

[0009] Preferably, the thickness of the fixed sheet is ≤0.5mm.

[0010] Preferably, an elastic member is arranged between the tool head assembly and the tool head limiting portion of the fixing sheet, two ends of the elastic member abutting against the top end of the tool head assembly and the tool head limiting portion respectively, and an elastic member positioning structure is arranged on the tool head limiting portion to limit and fix the position of the elastic member on the tool head limiting portion.

[0011] Preferably, the elastic member positioning structure is arranged in a U-shaped structure, and is formed by bending the top end of the tool head limiting portion towards the tool head assembly, and a U-shaped groove is formed on the top end of the tool head limiting portion after the bending of the elastic member positioning structure.

[0012] Preferably, a central through hole is formed in the center of the tool head limiting portion, the elastic member positioning structure is symmetrically protruded on the hole wall of the central through hole, the elastic member positioning structure is arranged by bending towards the tool head assembly, the elastic member positioning structure has a radial limiting portion and an axial limiting portion extending away from the central axis of the central through hole, the bottom end of the elastic member is sleeved on the elastic member positioning structure, the radial limiting portion limits the radial position of the elastic member between the tool head assembly and the fixing sheet, and the axial limiting portion limits the axial position of the elastic member between the tool head assembly and the fixing sheet.

[0013] Preferably, the elastic member positioning structure is at least two opposite positioning ends protruded on the tool head limiting portion, a positioning groove is formed in the opposite end face of each of the two positioning ends, and the bottom end of the elastic member is inserted into the corresponding positioning groove and connected with the fixing sheet.

[0014] Preferably, the tool head assembly comprises a mesh fixing frame, a moving cutter seat, a moving cutter and a static cutter, the long edge portion is formed on the mesh fixing frame, a moving cutter mounting groove is formed in the mesh fixing frame, the moving cutter seat is arranged in the moving cutter mounting groove, the moving cutter is arranged on the moving cutter seat, and the static cutter is arranged on the mesh fixing frame to cover the upper part of the moving cutter mounting groove.

[0015] The present application has the advantages that the limiting slot formed between the tool head limiting portion and the tool head connecting portion on the fixing sheet can effectively fix and limit the tool head assembly, preventing it from shaking or falling off during work. The long edge portion bottom end is inserted into the limiting slot, which greatly improves the work efficiency. At the same time, the design of the limiting slot also increases the contact area with the tool head assembly, so that the structural strength of the whole tool head device is improved, and it is more stable and reliable in use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim to explain some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 2 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 3 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 4 Figure 1 is a schematic diagram of the design structure of the present application. Figure 3 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 5 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 6 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 7 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 8 Figure 1 is a schematic diagram of the design structure of the present application. Figure 1 is a schematic diagram of the design structure of the present application. Figure 9 Figure 1 is a schematic diagram of the design structure of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0019] The present application will be further described with reference to the accompanying drawings of the specification.

[0020] The present application provides the following technical solutions: Figure 1 is a schematic diagram of the design structure of the present application. Figures 1-9The utility model discloses a kind of cutter head devices with new fixed sheet structure, including cutter head assembly 1 and fixed sheet 2, the cutter head assembly 1 has two opposite long side parts 3, the fixed sheet 2 is arranged at the bottom of long side part 3 and is connected with cutter head assembly 1, the fixed sheet 2 has cutter head limiting portion 4 and cutter head connecting portion 5, the cutter head limiting portion 4 is formed in the center position of fixed sheet 2, and it protrudes towards cutter head assembly 1 direction, the cutter head connecting portion 5 is arranged at the both sides of fixed sheet 2 body, recess and convex connecting structure is arranged between the cutter head connecting portion 5 and the long side part 3 of cutter head assembly 1, and recess and convex cooperation is carried out between the cutter head connecting portion 5 and the long side part 3 of cutter head assembly 1 by recess and convex connecting structure. Specifically, in the present design, by the recess and convex cooperation structure between the cutter head limiting portion and the cutter head connecting portion on fixed sheet, not only the effective fixation of cutter head assembly is realized, but also the overall stability of the device is further enhanced. Recess and convex structure can be formed on fixed sheet 2 or the long side part 3 of cutter head assembly 1, and recess and convex cooperation is carried out between the corresponding recess and convex structure ribs of the two, so that cutter head assembly 1 can be accurately and quickly positioned and closely combined with fixed sheet 2 when assembling. In addition, the design of recess and convex cooperation structure also facilitates the disassembly and maintenance of cutter head assembly 1, improves the practicability and convenience of the device.

[0021] Further, the recess and convex cooperation structure is limiting slot 6 formed between cutter head limiting portion 4 and cutter head connecting portion 5 and inserting part 25 corresponding to limiting slot 6 at the bottom end of long side part 3, the inserting part 25 at the bottom end of the long side part 3 of cutter head assembly 1 extends into limiting slot 6 and limits the connection with fixed sheet 2, by forming limiting slot 6 between cutter head limiting portion 4 and cutter head connecting portion 5 on fixed sheet 2, the effective fixation and limiting of cutter head assembly 1 can be realized, to prevent it from shaking or falling off during work. By aligning the bottom end of long side part 3 with limiting slot 6 and inserting it, the working efficiency is greatly improved. At the same time, the design of limiting slot 6 also increases the contact area with cutter head assembly 1, so that the structural strength of the overall cutter head device is improved, and it is more stable and reliable in use Further, the cutter head connecting portion 5 is arranged by bending the outer wall of long side part 3 of cutter head assembly 1 from the two sides of fixed sheet 2, a buckle groove 7 is formed on the cutter head connecting portion 5, the buckle groove 7 has upper groove wall 8 and lower groove wall 9, and the top of cutter head limiting portion 4 is located between the upper groove wall 8 and the lower groove wall 9 of buckle groove 7. Specifically, in the embodiment, the design of buckle groove 7 on cutter head connecting portion 5 not only enhances the connection stability between cutter head assembly 1 and fixed sheet 2, but also facilitates installation and disassembly. By ingeniously placing the top of cutter head limiting portion 4 between the upper groove wall 8 and the lower groove wall 9 of buckle groove 7, a more secure locking effect is achieved, effectively avoiding the loosening problem caused by vibration or external force.

[0022] Further, the outer wall of the long side part 3 is concave to form a fixing piece 2 connecting part, and the fixing piece 2 connecting part is convex to form a buckle end 10, which is buckled between the fixing piece 2 and the buckle slot 7 on the tool bit connecting part 5. Specifically, in this embodiment, by setting the buckle end 10, when the tool bit assembly 1 and the fixing piece 2 are assembled, the buckle end 10 can be directly buckled into the buckle slot 7, which not only simplifies the installation steps and improves the assembly efficiency, but also ensures the stability of the connection. The close fit of the buckle end 10 and the buckle slot 7 further enhances the structural stability of the entire tool bit device, enabling it to withstand greater workloads and prolonging its service life. In addition, this buckle connection method also facilitates subsequent maintenance and replacement, reduces maintenance costs, and improves user experience.

[0023] Further, the opposite inner walls of the limiting slot 6 are provided with reinforcing ribs 11, which are staggered between the reinforcing ribs 11, and the outer wall of the limiting slot 6 is concave at the part corresponding to the reinforcing ribs 11. Specifically, in this embodiment, the design of the reinforcing ribs 11 not only improves the structural strength of the limiting slot 6, but also enhances the close contact between the bottom end of the long side part 3 of the tool bit assembly 1. The staggered reinforcing ribs 11 can more effectively resist external impact and vibration, ensuring that the tool bit assembly 1 remains stable when running at high speed or under heavy cutting force. At the same time, the concave part of the outer wall of the limiting slot 6 corresponding to the reinforcing ribs 11 not only reduces the overall weight, but also optimizes the stress distribution, avoiding the risk of damage caused by stress concentration. This detail design not only improves the durability of the tool bit device, but also ensures its reliability and safety in various harsh working environments.

[0024] Further, the thickness of the fixing piece 2 is ≤0.5mm. Specifically, in this embodiment, the thickness of the fixing piece 2 is set to be less than or equal to 0.5mm, so that the elastic member 12 has more elastic space on the fixing piece 2 and can produce greater deformation when stressed, thereby more effectively absorbing and dispersing impact force and protecting the tool bit assembly 1 from damage.

[0025] Further, the elastic member 12 is arranged between the tool head assembly 1 and the tool head limiting portion 4 of the fixing sheet 2, two ends of the elastic member 12 abut against the tool head assembly 1 and the top end of the tool head limiting portion 4 respectively, the elastic member positioning structure 13 is arranged on the tool head limiting portion 4, and the elastic member positioning structure 13 limits and fixes the position of the elastic member 12 on the tool head limiting portion 4. Specifically, in the embodiment, the arrangement of the elastic member 12 further improves the connection stability and buffering capacity between the tool head assembly 1 and the fixing sheet 2. When the tool head assembly 1 is impacted or vibrated during work, the elastic member 12 can quickly respond to absorb and disperse the impact force, effectively reducing the damage to the tool head assembly 1 and the fixing sheet 2. At the same time, the elastic member positioning structure 13 ensures the stable position of the elastic member 12 on the tool head limiting portion 4, prevents displacement or falling of the elastic member 12 during force, and thus guarantees the stability and reliability of the entire tool head device.

[0026] Further, the elastic member positioning structure 13 is arranged in a U-shaped structure, the elastic member positioning structure 13 is formed by bending the top end of the tool head limiting portion 4 towards the tool head assembly 1, and a U-shaped groove 14 is formed on the top end of the tool head limiting portion 4 after the bending of the elastic member positioning structure 13. Specifically, in the embodiment, the U-shaped design of the elastic member positioning structure 13 not only provides stable support and limiting for the elastic member 12, but also optimizes the overall assembly structure. The existence of the U-shaped groove 14 enables the elastic member 12 to be easily embedded and firmly fixed on the tool head limiting portion 4, which not only simplifies the installation process, but also ensures the reliability and durability of the connection. In addition, the elastic member positioning structure 13 in a U-shaped structure also has a certain elasticity, which can adapt to the deformation of the elastic member 12 caused by force to a certain extent, further improving the adaptability and durability of the entire tool head device.

[0027] Further, the knife head limiting part 4 is provided with a center through hole 15, and the elastic element positioning structure 13 is symmetrically protruded on the hole wall of the center through hole 15, and the elastic element positioning structure 13 is arranged in a bent manner towards the knife head assembly 1, and the elastic element positioning structure 13 is provided with a radial limiting part 16 and an axial limiting part 17 extending away from the central axis of the center through hole 15, and the bottom end of the elastic element 12 is sleeved on the elastic element positioning structure 13, the radial limiting part 16 limits the radial position of the elastic element 12 between the knife head assembly 1 and the fixed sheet 2, and the axial limiting part 17 limits the axial position of the elastic element 12 between the knife head assembly 1 and the fixed sheet 2. Specifically, in this embodiment, the design of the center through hole 15 not only reduces the weight of the fixed sheet 2, but also optimizes the overall stress distribution. Through the center through hole 15, the elastic element positioning structure 13 can be symmetrically protruded, and is ingeniously arranged in a bent manner towards the knife head assembly 1, forming a composite structure with both the radial limiting part 16 and the axial limiting part 17. This design ensures that the elastic element 12 can be stably maintained at a predetermined position after installation, and will not fail due to radial deviation, nor will it affect the buffering effect due to axial movement. The cooperation of the radial limiting part 16 and the axial limiting part 17 greatly enhances the stability and durability of the elastic element 12 in complex working environment, so that the entire knife head device can still maintain excellent performance when facing various impacts and vibrations.

[0028] Further, the elastic element positioning structure 13 is protruded on the knife head limiting part 4 to form at least two opposite positioning ends 18, and the opposite end faces of the two positioning ends 18 are both concave to form positioning grooves 19, and the two sides of the bottom end of the elastic element 12 are respectively inserted into the corresponding positioning grooves 19 to be connected with the fixed sheet 2. Specifically, in this embodiment, during installation, the two sides of the bottom end of the elastic element 12 can be easily inserted into the corresponding positioning grooves 19 to achieve a close and reliable connection with the fixed sheet 2. This connection method not only ensures the stability of the elastic element 12 during force application, but also effectively prevents displacement or falling of the elastic element 12 during work.

[0029] Further, the knife head assembly 1 comprises a mesh fixing frame 20, a moving knife seat 21, a moving knife 22 and a static knife 23, the long side part 3 is formed on the mesh fixing frame 20, the mesh fixing frame 20 is formed with a moving knife mounting groove 24, the moving knife seat 21 is arranged in the moving knife mounting groove 24, the moving knife 22 is arranged on the moving knife seat 21, and the static knife 23 is arranged on the mesh fixing frame 20 to cover the upper part of the moving knife mounting groove 24.

[0030] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool head device with a new type of fixed blade structure, comprising a tool head assembly (1) and a fixed blade (2), the tool head assembly (1) has two opposite long side parts (3), the fixed blade (2) is arranged at the bottom of the long side part (3) and connected with the tool head assembly (1), characterized in that: The fixed sheet (2) has a tool bit limiting part (4) and a tool bit connecting part (5), the tool bit limiting part (4) is protruded and formed in the center of the fixed sheet (2) towards the tool bit assembly (1), the tool bit connecting part (5) is arranged on both sides of the body of the fixed sheet (2), the concave-convex connecting structure is arranged between the tool bit connecting part (5) and the long side part (3) of the tool bit assembly (1), the tool bit connecting part (5) and the long side part (3) of the tool bit assembly (1) are concave-convex matched through the concave-convex connecting structure.

2. The tool bit assembly having a novel fixed chip breaker structure according to claim 1, characterized in that: The concave-convex matching structure is a limiting slot (6) formed between the tool bit limiting part (4) and the tool bit connecting part (5) and a plug-in part (25) corresponding to the limiting slot (6) at the bottom end of the long side part (3), the plug-in part (25) at the bottom end of the long side part (3) of the tool bit assembly (1) extends into the limiting slot (6) and is limited by the fixed sheet (2).

3. The tool bit assembly having a novel fixed chip breaker structure according to claim 1, wherein: The tool bit connecting part (5) is arranged by bending the outer wall of the long side part (3) of the tool bit assembly (1) on both sides of the fixed sheet (2), a buckle groove (7) is arranged on the tool bit connecting part (5), the buckle groove (7) has an upper groove wall (8) and a lower groove wall (9), and the top of the tool bit limiting part (4) is located between the upper groove wall (8) and the lower groove wall (9) of the buckle groove (7).

4. The tool bit assembly having a novel fixed chip structure according to claim 3, characterized in that: The outer wall of the long side part (3) is concave to form a fixed sheet (2) connecting part, a buckle end (10) is protruded and formed on the fixed sheet (2) connecting part, and the buckle end (10) extends into the buckle groove (7) on the tool bit connecting part (5) and is buckled and connected between the fixed sheet (2).

5. The tool bit assembly having a novel chock structure according to claim 1, wherein: The opposite inner walls of the limiting slot (6) are provided with reinforcing ribs (11), the reinforcing ribs (11) are arranged alternately, and the outer wall of the limiting slot (6) is concave at the part corresponding to the reinforcing ribs (11).

6. The tool bit assembly having a novel chaser structure according to claim 1, wherein: The thickness of the fixed sheet (2) is ≤0.5mm.

7. The tool bit assembly having a novel chaser structure according to claim 1, wherein: An elastic member (12) is arranged between the tool bit limiting part (4) of the fixed sheet (2) and the tool bit assembly (1), the two ends of the elastic member (12) abut against the top end of the tool bit assembly (1) and the tool bit limiting part (4) respectively, an elastic member positioning structure (13) is arranged on the tool bit limiting part (4), and the elastic member positioning structure (13) limits and fixes the position of the elastic member (12) on the tool bit limiting part (4).

8. The tool bit assembly having a novel fixed chip structure according to claim 7, characterized in that: The elastic member positioning structure (13) is arranged in a U-shaped structure, the elastic member positioning structure (13) is bent and formed from the top end of the tool bit limiting part (4) towards the tool bit assembly (1), and a U-shaped groove (14) is formed on the top end of the tool bit limiting part (4) after the bending of the elastic member positioning structure (13).

9. The tool bit assembly having a novel chock structure according to claim 7, wherein: The center through hole (15) is arranged in the center of the cutter head limiting part (4), the elastic member positioning structure (13) is protruded symmetrically on the hole wall of the center through hole (15), the elastic member positioning structure (13) is arranged in the direction of the cutter head assembly (1), the elastic member positioning structure (13) has a radial limiting part (16) and an axial limiting part (17) extending in the direction away from the central axis of the center through hole (15), the bottom end of the elastic member (12) is sleeved on the elastic member positioning structure (13), the radial limiting part (16) limits the radial position of the elastic member (12) between the cutter head assembly (1) and the fixed sheet (2), and the axial limiting part (17) limits the axial position of the elastic member (12) between the cutter head assembly (1) and the fixed sheet (2).

10. The tool bit assembly having a novel chock structure according to claim 7, wherein: The elastic member positioning structure (13) is protruded on the cutter head limiting part (4) to form at least two opposite positioning ends (18), the opposite end faces of the two positioning ends (18) are concave to form positioning grooves (19), and the two sides of the bottom end of the elastic member (12) extend into the corresponding positioning grooves (19) and are connected with the fixed sheet (2).

11. The tool bit assembly having a novel chaser structure according to claim 1, wherein: The cutter head assembly (1) comprises a mesh fixing frame (20), a moving cutter seat (21), a moving cutter (22) and a static cutter (23), the long side part (3) is formed on the mesh fixing frame (20), the moving cutter mounting groove (24) is formed in the mesh fixing frame (20), the moving cutter seat (21) is arranged in the moving cutter mounting groove (24), the moving cutter (22) is arranged on the moving cutter seat (21), and the static cutter (23) is arranged on the mesh fixing frame (20) to cover the upper part of the moving cutter mounting groove (24).

Images