Handheld circular knife fabric cutting machine

Abstract

The utility model relates to the technical field of fabric cutting machines, in particular to a handheld circular knife fabric cutting machine which comprises a handheld main body, the end portion of the handheld main body is connected with a protection end in a matched mode, a brushless motor is installed in the front end of the handheld main body, and a control circuit board is arranged in the handheld main body. The control circuit board is electrically connected with the brushless motor through a wire, a power supply structure is arranged at the rear end of the handheld body, a bevel gear set is arranged in the protection end, a blade is installed on one side of the protection end, and the output end of the brushless motor and the blade are in butt joint through the bevel gear set. The output end of the motor is in butt joint with the blade through the bevel gear set, so that the power transmission path of the motor is more direct, the gravity center of the whole hand-held machine can be more reasonably distributed in the middle position, the holding balance feeling is obviously improved, the operation is more in line with the human engineering principle, and the working efficiency is improved. The fatigue feeling caused by long-time use is reduced, and the comfort and convenience of operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting machine technology, specifically a handheld circular knife fabric cutting machine. Background Technology

[0002] In industries such as textiles, clothing, and leather processing, fabric cutting is an essential step. Traditional cutting methods rely heavily on manual operation using scissors or foot-operated cutting tables, which are inefficient and make it difficult to guarantee cutting accuracy. With technological advancements, handheld fabric cutting machines have become widely used due to their advantages such as flexible operation, fast cutting speed, and clean cuts.

[0003] However, some existing handheld fabric cutters still have shortcomings in structural design and user experience. Existing designs often simply stack or arrange the motor, transmission mechanism and cutting blade assembly in a simple manner, which causes the center of gravity of the handheld part to shift. This distribution of the center of gravity makes it difficult for the operator to hold the machine for a long time, which can easily cause fatigue. In addition, the machine can usually only run at a single speed during cutting, and cannot adjust the speed according to different fabric materials or cutting needs, which limits its applicability.

[0004] Therefore, a handheld circular cutter is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a handheld circular blade fabric cutter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A handheld circular blade fabric cutter includes a handheld body with a protective end connected to its end. A brushless motor is installed inside the front end of the handheld body, and a control circuit board is installed inside the handheld body. The control circuit board is electrically connected to the brushless motor via wires. A power supply structure is provided at the rear end of the handheld body. A bevel gear set is installed inside the protective end, and a blade is installed on one side of the protective end. The bevel gear set is connected to the output end of the brushless motor and the blade. A blade guard is provided on the outer side of the upper end of the blade, and the blade guard is connected to one side of the protective end. A speed control module is also installed on the handheld body and is electrically connected to the control circuit board. The speed control module adjusts the rotation speed of the brushless motor by controlling the control circuit board.

[0008] As a preferred embodiment of this utility model, the bevel gear set includes a bevel gear a and a bevel gear b with their ends meshing with each other. The rear end of the bevel gear a is connected to the output end of the brushless motor, and the other end of the bevel gear b is fixedly connected to the middle of the blade.

[0009] As a preferred embodiment of this utility model, the handheld body includes a shell, which is elongated and has recesses on all four sides at the front end for easy hand gripping. The speed control module is located above the front end of the recesses of the shell, and a switch is installed below the front end of the recesses. The switch is electrically connected to the control circuit board via wires to control the start and stop of the brushless motor.

[0010] As a preferred embodiment of this utility model, the protective end includes a protective shell, one end of which is provided with a docking end connected to the end of the shell, and the other side of the protective shell is provided with an installation end, and the bevel gear b is limited and disposed in the installation end.

[0011] As a preferred embodiment of this utility model, a bearing a is provided at the connection between the bevel gear a and the mating end, and a bearing b is provided at the connection between the bevel gear b and the mounting end. The bearing a is sleeved on the outer side of the shaft of the bevel gear a, and the bearing b is sleeved on the outer side of the shaft of the bevel gear b.

[0012] As a preferred embodiment of this utility model, the blade protector includes a blade protector shell that mates with the mounting end on one side of the protective housing, and a baffle shell is connected between the blade protector shell and the mounting end.

[0013] As a preferred embodiment of this utility model, a mounting protrusion is provided on one side of the mounting end of the protective shell, and a stop rod is inserted into the mounting protrusion. A spring is sleeved on the outside of the stop rod for elastic reset after the stop rod is pressed.

[0014] As a preferred embodiment of this utility model, the power supply structure is detachable, including a plug-in slot opened at the rear end of the housing, and a battery is inserted into the plug-in slot to supply power to the control circuit board.

[0015] As a preferred embodiment of this utility model, the power supply structure is a plug-in type, including a power line electrically connected to the control circuit board, and an external power source is connected through the power line to achieve power supply.

[0016] As a preferred embodiment of this utility model, the front end of the protective shell is provided with a mounting groove, and an illumination lamp bead is installed in the mounting groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses a bevel gear set to connect the motor output end with the blade, making the power transmission path of the motor more direct. The center of gravity of the handheld device can be more reasonably distributed in the middle position, which significantly improves the balance of holding, makes the operation more in line with the ergonomic principle, reduces fatigue caused by long-term use, and improves the comfort and convenience of operation.

[0019] 2. This utility model adopts a DC brushless motor drive and connects to the speed adjustment module through the control circuit board, which allows the operator to easily adjust the cutting speed according to different fabric materials, thicknesses or cutting requirements, greatly expanding the applicable range of the machine, improving the cutting accuracy and efficiency, and avoiding the inconvenience caused by a single speed.

[0020] 3. This utility model has a speed control module set at the gripping end of the housing. The speed control module is equipped with a digital display screen, which can display the current blade speed in real time. This allows the operator to understand the working status of the machine more intuitively and make adjustments as needed, thereby improving the convenience and safety of operation. Attached Figure Description

[0021] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0022] Figure 2 This is a first-view exploded view of Embodiment 1 of this utility model;

[0023] Figure 3 This is a second-view exploded view of Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0025] Figure 5 This is a perspective view of Embodiment 2 of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model.

[0027] In the diagram: 1. Housing; 2. Speed ​​control module; 3. Power cord; 4. Protective housing; 5. Blade protective housing; 6. Material stop housing; 7. Blade; 8. Connecting seat; 9. Support rod; 10. Spring; 11. Control circuit board; 12. Plug slot; 13. Brushless motor; 14. Bevel gear a; 15. Bevel gear b; 16. Bearing b; 17. Bearing a; 18. Battery; 19. Switch; 20. Lighting bulb. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figure 1-6 This utility model provides a technical solution:

[0033] Example 1, please refer to Figure 1 , 2 3 and 4, a handheld circular blade fabric cutter, includes a handheld body, a protective end connected to the end of the handheld body, a brushless motor 13 installed in the front end of the handheld body, a control circuit board 11 installed inside the handheld body, the control circuit board 11 and the brushless motor 13 electrically connected by wires, a power supply structure installed at the rear end of the handheld body, a bevel gear set installed inside the protective end, a blade 7 installed on one side of the protective end, the bevel gear set respectively connecting to the output end of the brushless motor 13 and the blade 7, a blade guard provided on the outer side of the upper end of the blade 7, the blade guard engaging with one side of the protective end; a speed control module 2 is also installed on the handheld body, the speed control module 2 is electrically connected to the control circuit board 11, the speed control module 2 adjusts the rotation speed of the brushless motor 13 by fast / slow through the control circuit board 11.

[0034] By using a bevel gear set to connect the output end of the brushless motor 13 to the blade 7, the power transmission path of the motor is more direct, and the center of gravity of the handheld device can be more reasonably distributed in the middle position, which significantly improves the balance of holding. The speed adjustment module 2 can adjust the speed of the brushless motor 13, thereby changing the rotation speed of the blade 7 to meet the needs of different fabric materials, thicknesses or cutting requirements. The speed adjustment module 2 is equipped with a display screen that can display the speed of the brushless motor 13.

[0035] The blade guard protects the upper part of the blade 7, increasing safety during use.

[0036] The bevel gear set includes bevel gears a14 and b15 that mesh with each other at their ends. The rear end of bevel gear a14 is connected to the output end of brushless motor 13. The other end of bevel gear b15 is fixedly connected to the middle of blade 7. A bearing a17 is provided at the connection between bevel gear a14 and the mating end, and a bearing b16 is provided at the connection between bevel gear b15 and the mounting end. Bearing a17 is sleeved on the outside of the shaft of bevel gear a14, and bearing b16 is sleeved on the outside of the shaft of bevel gear b15.

[0037] The bearings a17 and b16 are designed to keep bevel gears a14 and b15 stable during rotation, preventing them from shaking.

[0038] The handheld body includes a housing 1, which is elongated and has recesses on all four sides at the front end for easy hand gripping. The speed control module 2 is located above the front end of the recesses of the housing 1, and a switch 19 is installed below the front end of the recesses. It is electrically connected to the control circuit board 11 via wires to control the start and stop of the brushless motor 13. The protective end includes a protective housing 4, one end of which has a mating end that connects to the end of the housing 1, and the other side of which has an mounting end. A bevel gear b15 is limited and located inside the mounting end. The blade protection component includes a blade protection housing 5 that mates with the mounting end on one side of the protective housing 4. A baffle housing 6 is connected between the blade protection housing 5 and the mounting end.

[0039] A mounting protrusion is provided on one side of the mounting end of the protective housing 4. A stop rod 9 is inserted into the mounting protrusion. A spring 10 is sleeved on the outside of the stop rod 9 for elastic reset after the stop rod 9 is pressed.

[0040] The power supply structure is detachable, including a plug slot 12 at the rear end of the housing 1, and a battery 18 is inserted into the plug slot 12 to supply power to the control circuit board 11.

[0041] In this embodiment, a pluggable and detachable battery component 18 is used as the power supply structure, which makes the main body of the device easy to use, not limited by power supply, and available anytime and anywhere.

[0042] Example 2, please refer to Figure 5 and 6 The difference from Embodiment 1 is that in this embodiment, the power supply structure is a plug-in type, including a power line 3 electrically connected to the control circuit board 11, and an external power supply is connected through the power line 3 to achieve power supply.

[0043] In this embodiment, an external power supply is used via power cord 3, which is suitable for use in locations with available power.

[0044] The protective housing 4 has a mounting groove at its front end, and an illumination lamp 20 is installed in the mounting groove. The illumination lamp 20 can provide illumination during cutting.

[0045] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld circular blade fabric cutter, comprising a handheld body, a protective end connected to the end of the handheld body, a brushless motor (13) installed inside the front end of the handheld body, a control circuit board (11) disposed inside the handheld body, the control circuit board (11) being electrically connected to the brushless motor (13) via wires, and a power supply structure disposed at the rear end of the handheld body, characterized in that: The protective end is provided with a bevel gear set inside, and a blade (7) is installed on one side of the protective end. The bevel gear set is connected to the output end of the brushless motor (13) and the blade (7) respectively. A blade protection component is provided on the outer side of the upper end of the blade (7), and the blade protection component is connected to one side of the protective end. The handheld main body is also equipped with a speed adjustment module (2), which is electrically connected to the control circuit board (11). The speed adjustment module (2) adjusts the rotation speed of the brushless motor (13) by controlling the circuit board (11).

2. The handheld circular cutter for fabric according to claim 1, characterized in that: The bevel gear set includes bevel gear a (14) and bevel gear b (15) with their ends meshing with each other. The rear end of bevel gear a (14) is connected to the output end of brushless motor (13), and the other end of bevel gear b (15) is fixedly connected to the middle of blade (7).

3. The handheld circular cutter for fabric according to claim 2, characterized in that: The handheld body includes a housing (1), which is long and narrow, and has recesses on all four sides at the front end for easy hand holding. The speed control module (2) is located above the front end of the recesses of the housing (1), and a switch (19) is installed below the front end of the recesses. It is electrically connected to the control circuit board (11) via wires to control the start and stop of the brushless motor (13).

4. The handheld circular cutter for fabric according to claim 3, characterized in that: The protective end includes a protective housing (4), one end of which is provided with a docking end connected to the end of the housing (1), and the other side of the protective housing (4) is provided with an installation end, and the bevel gear b (15) is limited and disposed in the installation end.

5. The handheld circular cutter for fabric according to claim 4, characterized in that: A bearing a (17) is provided at the connection between the bevel gear a (14) and the mating end, and a bearing b (16) is provided at the connection between the bevel gear b (15) and the mounting end. The bearing a (17) is sleeved on the outer side of the shaft of the bevel gear a (14), and the bearing b (16) is sleeved on the outer side of the shaft of the bevel gear b (15).

6. The handheld circular cutter for fabric according to claim 5, characterized in that: The blade protector includes a blade protector shell (5) that mates with the mounting end of the protective shell (4) on one side, and a baffle shell (6) is connected between the blade protector shell (5) and the mounting end.

7. The handheld circular cutter for fabric according to any one of claims 4-6, characterized in that: The protective housing (4) has a mounting protrusion on one side of the mounting end, and a stop rod (9) is inserted into the mounting protrusion. A spring (10) is sleeved on the outside of the stop rod (9) for elastically restoring the stop rod (9) after it is pressed.

8. The handheld circular cutter for fabric according to claim 7, characterized in that: The power supply structure is detachable and includes a plug slot (12) at the rear end of the housing (1), and a battery component (18) is inserted into the plug slot (12) to supply power to the control circuit board (11).

9. The handheld circular cutter for fabric according to claim 7, characterized in that: The power supply structure is a plug-in type, including a power line (3) electrically connected to the control circuit board (11), and an external power supply is connected through the power line (3) to achieve power supply.

10. The handheld circular cutter for fabric according to claim 8, characterized in that: The protective housing (4) has an installation groove at its front end, and an illumination lamp bead (20) is installed in the installation groove.

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