Outer rotor type servo circular knife cutting machine

Abstract

The utility model relates to an outer rotor type servo circular knife cutting machine which comprises a base plate, a support plate is arranged on the base plate, a knife rest is arranged on the support plate, a stator seat is fixedly arranged on one side of the knife rest, a stator iron core is arranged on the stator seat, a motor shaft is installed in the center of the stator seat in a penetrating mode, a blade is arranged at one end of the motor shaft, and a motor shaft is arranged at the other end of the motor shaft. The blade is located on the other side of the tool rest, a fan blade type end cover is arranged at the other end of the motor shaft, a rotor shell is arranged on the inner side of the fan blade type end cover, and a plurality of magnets are evenly arranged on the inner wall of the rotor shell. According to the outer rotor type servo circular knife cutting machine, the circular blade is directly installed on the motor shaft, the overall structure is greatly simplified, installation and replacement are convenient, and the maintenance and production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to an outer rotor type servo circular knife cutting machine. Background Art

[0002] With the rapid development of society, people's lives are becoming more and more colorful. A wide variety of clothing is available for people to wear in different occasions. The clothing industry has experienced rapid development along with the improvement of people's living standards. The personalized and diverse needs have led to an increasing production of clothing. In clothing production, fabric cutting is a key step. With the emergence of various production methods, a variety of fabric cutting machines have emerged to facilitate people's production work. Modern circular knife cutting machines are widely used because of their light weight, small size, and easy operation. Circular knife cutting machines are suitable for straight line cutting and cutting operations.

[0003] Existing circular knife shears typically consist of a bracket, a motor, and a circular blade. The motor is mounted on the bracket, with a worm gear connected to the motor's output end. The circular blade is detachably mounted on the worm gear. The motor's direction of rotation, reversed by the worm gear, drives the rotating cutter disc to cut the fabric. These circular knife shears have the following drawbacks: the motor rotates at high speed, resulting in loud noise and vibration, and is prone to wear, requiring frequent lubrication. Furthermore, the worm gear is a core component, requiring complex assembly and cumbersome replacement. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an outer rotor servo circular knife cutting machine. The circular blade is directly installed on the motor shaft, which greatly simplifies the overall structure, is easy to install and replace, and greatly reduces maintenance and production costs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an outer rotor servo circular knife cutting machine, comprising a chassis, a support plate provided on the chassis, a knife holder provided on the support plate, a stator seat fixedly provided on one side of the knife holder, a stator core provided on the stator seat, a motor shaft passing through the center of the stator seat, a blade provided at one end of the motor shaft, the blade being located on the other side of the knife holder, a fan blade end cover provided at the other end of the motor shaft, a rotor shell provided on the inner side of the fan blade end cover, and a plurality of magnets evenly provided on the inner wall of the rotor shell.

[0006] Furthermore, a coil winding is wound on the stator core.

[0007] Furthermore, the rotor shell is placed outside the stator core.

[0008] Furthermore, a first bearing is provided between the stator seat and the motor shaft.

[0009] Furthermore, a second bearing is provided between the stator core and the motor shaft.

[0010] Furthermore, the support plate is provided with a distribution piece, and the tool holder is connected to the support plate via the distribution piece.

[0011] Furthermore, the blade is an octagonal blade.

[0012] Furthermore, a lower knife seat is provided on the chassis, and a lower knife is provided on the lower knife seat.

[0013] Furthermore, the lower knife is located outside the blade.

[0014] Furthermore, a blade seat is provided at one end of the motor shaft, and the blade is fixed on the blade seat by a nut chuck.

[0015] The utility model has the following beneficial effects:

[0016] The circular blade of the utility model is directly installed on the motor shaft, which greatly simplifies the overall structure, is easy to install and replace, and greatly reduces maintenance and production costs;

[0017] The utility model adopts an outer rotor motor, which has a greater output torque under the same volume; the motor has higher efficiency and high power density; high response speed, and faster start and stop speed of the motor; the motor has a wider speed regulation range, greater overload capacity, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a three-dimensional structural diagram of an outer rotor type servo circular knife cutting machine.

[0019] Figure 2 for Figure 1 main view.

[0020] Figure 3 for Figure 2 rear view.

[0021] Figure 4 for Figure 1 Longitudinal cross-sectional view.

[0022] Legend:

[0023] 1. Chassis; 2. Bracket plate; 3. Tool holder; 4. Stator seat; 5. Stator core; 6. Motor shaft; 7. Blade; 8. Fan blade end cover; 9. Rotor shell; 10. Magnet; 11. First bearing; 12. Second bearing; 13. Distribution plate; 14. Lower tool holder; 15. Lower tool; 16. Blade holder; 17. Nut chuck; 18. Roller. DETAILED DESCRIPTION

[0024] Reference Figure 1-4 The utility model provides an outer rotor servo circular knife cutting machine, comprising a chassis 1, a support plate 2 is provided on the chassis 1, a knife holder 3 is provided on the support plate 2, a stator seat 4 is fixedly provided on one side of the knife holder 3, a stator core 5 is provided on the stator seat 4, a motor shaft 6 is passed through the center of the stator seat 4, a blade 7 is provided at one end of the motor shaft 6, the blade 7 is located on the other side of the knife holder 3, a fan blade end cover 8 is provided at the other end of the motor shaft 6, a rotor shell 9 is provided inside the fan blade end cover 8, and a plurality of magnets 10 are evenly provided on the inner wall of the rotor shell 9;

[0025] The stator core 5 is wound with a coil winding;

[0026] The rotor shell 9 is placed on the outer periphery of the stator core 5;

[0027] A first bearing 11 is provided between the stator seat 4 and the motor shaft 6;

[0028] A second bearing 12 is provided between the stator core 5 and the motor shaft 6;

[0029] The support plate 2 is provided with a distribution piece 13, and the tool holder 3 is connected to the support plate 2 through the distribution piece 13;

[0030] The blade 7 is an octagonal blade;

[0031] The chassis 1 is provided with a lower knife seat 14, and the lower knife seat 14 is provided with a lower knife 15;

[0032] The lower knife 15 is located outside the blade 7;

[0033] A blade seat 16 is provided at one end of the motor shaft 6, and the blade 7 is fixed on the blade seat 16 via a nut chuck 17;

[0034] Two groups of left and right rollers 18 are provided at the bottom of the chassis 1 .

[0035] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outer rotor servo circular knife cutting machine, characterized by: The invention comprises a chassis (1), a support plate (2) is provided on the chassis (1), a knife holder (3) is provided on the support plate (2), a stator seat (4) is fixedly provided on one side of the knife holder (3), a stator core (5) is provided on the stator seat (4), a motor shaft (6) is passed through the center of the stator seat (4), a blade (7) is provided at one end of the motor shaft (6), the blade (7) is located on the other side of the knife holder (3), a fan blade end cover (8) is provided at the other end of the motor shaft (6), a rotor shell (9) is provided inside the fan blade end cover (8), and a plurality of magnets (10) are evenly provided on the inner wall of the rotor shell (9).

2. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: The stator core (5) is wound with a coil winding.

3. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: The rotor shell (9) is placed on the periphery of the stator core (5).

4. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: A first bearing (11) is provided between the stator seat (4) and the motor shaft (6).

5. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: A second bearing (12) is provided between the stator core (5) and the motor shaft (6).

6. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: A distribution piece (13) is provided on the support plate (2), and the tool holder (3) and the support plate (2) are connected via the distribution piece (13).

7. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: The blade (7) is an octagonal blade.

8. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: A lower knife seat (14) is provided on the chassis (1), and a lower knife (15) is provided on the lower knife seat (14).

9. The outer rotor servo circular knife cutting machine according to claim 8, characterized in that: The lower knife (15) is located outside the blade (7).

10. The outer rotor servo circular knife cutting machine according to claim 1, characterized in that: A blade seat (16) is provided at one end of the motor shaft (6), and the blade (7) is fixedly disposed on the blade seat (16) via a nut chuck (17).

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