Vibration cutter

Abstract

The utility model relates to a vibration cutter which comprises a driving motor, a gear box assembly fixed below the driving motor and a cutter head assembly arranged below the gear box assembly. The tool bit assembly comprises a tool sleeve, a tool bit connecting piece arranged in the tool sleeve, a magnetic attraction block arranged in a groove of the tool bit connecting piece and a tool bit connected with the magnetic attraction block in a magnetic attraction mode, a positioning hole is formed in a blade clamp of the tool bit, a positioning rod capable of being inserted into the positioning hole is arranged in the groove, and the tool bit extends out of a tool edge at the front end of the tool sleeve. According to the vibration cutter, through the magnetic attraction type connecting technology, rapid installation and accurate positioning of the cutter head assembly are achieved, and the production efficiency and the cutting accuracy are improved. The magnetic connection between the magnetic block and the tool bit ensures the convenience of replacing the tool bit, and meanwhile, the design of the positioning hole and the positioning rod ensures the consistency and accuracy of installing the tool bit every time.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating knives, in particular to a vibrating knife. Background Art

[0002] In the current garment manufacturing industry, automated cutting technology has become a key component in improving production efficiency and ensuring cutting precision. Within this field, circular knives and vibrating knives are the mainstream cutting tools, widely used for precise cutting of various fabrics. Vibrating knives, with their unique high-frequency vibration characteristics, can reduce fabric stretching and deformation during the cutting process, making them particularly suitable for cutting complex contours and multi-layered materials. This significantly improves cutting quality while significantly increasing production efficiency.

[0003] Despite continuous advancements in oscillating blade technology, the connection between the cutter head and the blade clamp remains a significant factor influencing cutting efficiency and ease of maintenance. Traditional connection methods, such as bolts, pins, or threaded structures, ensure stability during cutting but often require complex assembly and disassembly procedures. This is not only time-consuming and labor-intensive, but can also lead to inaccurate cutter head positioning due to frequent assembly operations, compromising cutting accuracy and increasing maintenance costs and downtime.

[0004] In addition, most vibrating knives are in the shape of a "7", that is, the direction of the motor axis is perpendicular to the direction of the cutter head axis, which causes the vibrating knife to occupy a larger installation space.

[0005] In view of the above problems, the present application proposes a vibrating knife capable of quickly replacing the cutter head. Utility Model Content

[0006] In view of the deficiencies in the background technology, the utility model provides a vibrating knife.

[0007] The technical solution adopted by the utility model is: a vibrating knife, including a driving motor, a gear box assembly fixed below the driving motor and a cutter head assembly arranged below the gear box assembly, the cutter head assembly including a knife sleeve, a cutter head connector arranged in the knife sleeve, a magnetic block in a groove of the cutter head connector, and a cutter head magnetically connected to the magnetic block, a positioning hole is provided on the blade clamp of the cutter head, a positioning rod capable of being inserted into the above-mentioned positioning hole is provided in the groove, and the cutter head extends from the blade edge at the front end of the knife sleeve.

[0008] Furthermore, the gearbox assembly includes a gearbox body, a transition shaft, a transition gear and an eccentric shaft. The transition shaft, transition gear and eccentric shaft are all rotationally connected to the gearbox body through bearings. The drive motor and the transition shaft are driven by helical gears, and the transition gear is driven by the drive gears on the transition shaft and the eccentric shaft.

[0009] Furthermore, the cutter head connector includes a fixed block provided with the above-mentioned groove, a guide rod connected to the fixed block, and a connecting head connected to the guide rod, and the guide rod is in sliding cooperation with the linear bearing on the bottom wall of the gear box body.

[0010] Furthermore, it also includes a connecting crank arm, one end of which is rotationally connected to the rotating shaft on the connecting head, and the other end is rotationally connected to the eccentric shaft.

[0011] Furthermore, the knife sleeve is movably sleeved on the lower sleeve of the gear box, and a buffer spring is provided between the knife sleeve and the gear box.

[0012] Furthermore, the driving motor, gear box and tool sleeve are all coaxially arranged cylindrical structures.

[0013] The beneficial effects of the utility model are:

[0014] 1. Quick positioning and installation: The magnetic connection design between the magnetic block and the cutter head makes the installation and replacement of the cutter head extremely fast. No tools are required. The cutter head only needs to be brought close to the magnetic block to automatically complete the adsorption and positioning, which greatly shortens the tool change time and improves production continuity.

[0015] 2. Improve cutting accuracy: By setting a positioning hole on the cutter head seat and equipping a positioning rod in the cutter sleeve groove, it is ensured that the cutter head can be accurately reset each time it is replaced, avoiding position deviation caused by manual assembly, thereby improving cutting accuracy, ensuring the consistency of the cut piece size and high-quality cutting effect.

[0016] 3. Reduce maintenance costs: Compared with traditional fixing methods such as bolts and pins, magnetic connection reduces mechanical wear and extends the service life of the cutter head and components. At the same time, it simplifies the maintenance process and reduces the maintenance cost and time consumption caused by frequent cutter head replacement.

[0017] 4. Enhanced operational convenience: Users can easily replace the cutter head without professional knowledge, which lowers the operating threshold and improves work efficiency, allowing production line personnel to focus more on the production task itself rather than complex equipment maintenance.

[0018] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0019] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 Schematic diagram of the gearbox interior.

[0022] Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0023] Figure 4 Schematic diagram of the gearbox assembly.

[0024] Figure 1-4 In: 1. Drive motor; 2. Gearbox assembly; 3. Cutter head assembly; 4. Cutter sleeve; 5. Cutter head connector; 7. Magnetic block; 8. Cutter head; 9. Blade clamp; 10. Positioning hole; 11. Positioning rod; 12. Blade; 13. Gearbox body; 14. Transition shaft; 15. Transition gear; 16. Eccentric shaft; 17. Bearing; 18. Helical gear; 19. Drive gear; 20. Fixed block; 21. Guide rod; 22. Connector; 23. Linear bearing; 24. Connecting arm; 25. Rotating shaft; 26. Sleeve; 27. Buffer spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] The utility model provides a vibrating knife.

[0028] In this embodiment, referring to Figure 1-4 The vibrating knife includes a driving motor 1, a gear box assembly 2 fixed below the driving motor, and a cutter head assembly 3 arranged below the gear box assembly. The cutter head assembly includes a cutter sleeve 4, a cutter head connector 5 arranged in the cutter sleeve, a magnetic block 7 in the groove of the cutter head connector, and a cutter head 8 magnetically connected to the magnetic block. A positioning hole 10 is provided on the blade clamp 9 of the cutter head, and a positioning rod 11 that can be inserted into the above-mentioned positioning hole is provided in the groove. The cutter head extends from the blade edge 12 at the front end of the cutter sleeve.

[0029] The oscillating blade utilizes magnetic connection technology to enable quick installation and precise positioning of the cutter head assembly, improving production efficiency and cutting accuracy. The magnetic connection between the magnetic block and the cutter head ensures convenient cutter head replacement, while the positioning holes and positioning rods ensure consistent and accurate cutter head installation every time.

[0030] Specifically, the gearbox assembly includes a gearbox body 13, a transition shaft 14, a transition gear 15 and an eccentric shaft 16. The transition shaft, transition gear and eccentric shaft are all rotationally connected to the gearbox body through bearings 17. The drive motor and the transition shaft are driven and connected through a bevel gear 18. The transition gear is driven and connected to the drive gear 19 on the transition shaft and the eccentric shaft.

[0031] The precise configuration of the transition shaft, transition gear and eccentric shaft in the gearbox assembly, combined with the helical gear drive connection, effectively transmits the power of the drive motor to the eccentric shaft, achieving efficient and stable vibration of the vibrating knife, improving the transmission efficiency of the power system and the stability of the vibration frequency, and further enhancing the cutting performance.

[0032] Specifically, the cutter head connector includes a fixed block 20 provided with the above-mentioned groove, a guide rod 21 connected to the fixed block, and a connector 22 connected to the guide rod. The guide rod is in sliding cooperation with a linear bearing 23 on the bottom wall of the gear box.

[0033] The cutter head connector is designed with a combination of a fixed block, a guide rod and a connector, and slides with the linear bearing, which not only ensures the smooth movement of the cutter head during vibration, but also simplifies the structure, reduces friction loss, and improves the durability of the entire vibrating knife system and the smoothness of the cutting process.

[0034] Specifically, it also includes a connecting crank arm 24, one end of which is rotationally connected to the rotating shaft 25 on the connecting head, and the other end of which is rotationally connected to the eccentric shaft.

[0035] The introduction of the connecting arm, which is connected to the connecting head shaft and eccentric shaft at both ends, further optimizes the vibration transmission path, enhances the dynamic stability of the vibrating knife during cutting operations, and enables the cutter head to follow the predetermined trajectory more accurately, thereby improving cutting quality and efficiency.

[0036] Specifically, the knife sleeve is movably sleeved on the lower sleeve 26 of the gear box, and a buffer spring 27 is provided between the knife sleeve and the gear box.

[0037] The knife sleeve is movably mounted on the sleeve below the gear box and is equipped with a buffer spring. This design effectively absorbs the vibration energy generated during the cutting process, reduces the movement or lifting of the fabric caused by vibration, significantly improves the cutting accuracy, ensures the accuracy of the cut piece size, and at the same time protects the knife head assembly and extends its service life.

[0038] Specifically, the driving motor, gear box and tool sleeve are all coaxially arranged cylindrical structures.

[0039] The entire device adopts a coaxial cylindrical structure, including a drive motor, gearbox and knife sleeve. Compared with the traditional "7"-shaped structure, this straight-cylinder design greatly reduces the installation space requirement of the vibrating knife, improves space utilization, makes the vibrating knife more compact, and facilitates flexible installation in limited working environments. It also simplifies the layout and maintenance of the equipment and improves the overall integration and aesthetics.

[0040] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A vibrating knife, characterized in that: It includes a driving motor, a gear box assembly fixed under the driving motor, and a cutter head assembly arranged under the gear box assembly, the cutter head assembly includes a cutter sleeve, a cutter head connecting piece arranged in the cutter sleeve, a magnetic block arranged in a groove of the cutter head connecting piece, and a cutter head magnetically connected to the magnetic block, a positioning hole is provided on the blade clamp of the cutter head, a positioning rod capable of being inserted into the positioning hole is provided in the groove, and the cutter head extends from a cutting edge at the front end of the cutter sleeve.

2. The vibrating knife according to claim 1, characterized in that: The gearbox assembly includes a gearbox body, a transition shaft, a transition gear and an eccentric shaft. The transition shaft, the transition gear and the eccentric shaft are all rotationally connected to the gearbox body through bearings. The drive motor is driven and connected to the transition shaft through a helical gear. The transition gear is driven and connected to the drive gears on the transition shaft and the eccentric shaft.

3. The vibrating knife according to claim 2, characterized in that: The cutter head connector comprises a fixed block provided with the groove, a guide rod connected to the fixed block, and a connector connected to the guide rod, wherein the guide rod is slidably matched with a linear bearing on the bottom wall of the gear box body.

4. The vibrating knife according to claim 3, characterized in that: It also includes a connecting crank arm, one end of which is rotatably connected to the rotating shaft on the connecting head, and the other end of which is rotatably connected to the eccentric shaft.

5. The vibrating knife according to claim 4, characterized in that: The knife sleeve is movably sleeved on the lower sleeve of the gear box, and a buffer spring is arranged between the knife sleeve and the gear box.

6. The vibrating knife according to claim 5, characterized in that: The driving motor, gear box and tool sleeve are all coaxially arranged cylindrical structures.

Images