Laser device and sewing machine

By introducing a movable laser head and pressurization mechanism into the laser device, combined with the presser foot and the suction assembly, the problems of untidy cutting and burning of soft and thick materials are solved, and efficient and beautiful cutting effect is achieved.

CN223202047UActive Publication Date: 2025-08-08BOSIDENG DOWN WEAR LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422579119.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-08-08
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

When existing laser devices cut soft and thicker materials such as sponges or down, the cutting surface is not neat and easily burned partially, resulting in unsightly cuts.

Method used

A laser device is designed, including a laser generator, a laser head and a pressing assembly. The laser head is movable and equipped with a pressing mechanism and a pressing foot. The pressing foot is equipped with a avoiding hole to compact the fabric during cutting, so that the cutting surfaces on both sides are located at the focus of the laser. Combined with the lifting mechanism and the suction assembly, it ensures cutting efficiency and aesthetics.

Benefits of technology

It achieves rapid and efficient cutting of soft and thick materials, and the cutting surface is flat and beautiful, avoids local burning and improves the cutting quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223202047U_ABST
    Figure CN223202047U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of sewing machines, and discloses a laser device and a sewing machine, the device comprises a laser generator, a laser head and a pressing assembly, the laser generator is arranged on a workbench of the sewing machine, the laser head is movably arranged on the laser generator along the vertical direction, and the pressing assembly comprises a pressurizing mechanism and a presser foot. The laser head is arranged on the workbench, the pressurizing mechanism is arranged on the laser head, the pressing foot is arranged between the workbench and the laser head and connected to the output end of the pressurizing mechanism, and the pressing foot can move between the workbench and the laser head under driving of the pressurizing mechanism so as to compact or loosen fabric to be cut. The presser foot is provided with an avoiding hole allowing laser emitted by the laser head to penetrate through so as to cut the fabric. When a soft and thick fabric is cut, the presser foot can firstly compact the fabric, so that the cutting surfaces on the two sides of the fabric are located at the focal point of the laser head, rapid and efficient cutting is achieved, the cutting surfaces are smooth and attractive, and the situations that the cutting surfaces are irregular and even the fabric is locally burnt are effectively avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a laser device and a sewing machine. Background Art

[0002] Many sewing products require trimming after being sewn on a sewing machine. To improve the efficiency of trimming, most sewing machines are equipped with laser devices. Using laser devices not only increases the trimming efficiency but also ensures that the trimmed corners are very neat.

[0003] The laser device disclosed in the prior art utilizes a laser head and focuses the laser light generated by a laser generator. When cutting soft and thick materials such as sponge or down, the laser focus point is only located at a certain point, resulting in different positions and temperatures of the upper and lower parts of the cutting surface, which in turn leads to different cutting times. It is easy for local areas to be burned due to excessive temperature or prolonged duration, resulting in uneven and unsightly cutting surfaces. Utility Model Content

[0004] The purpose of the utility model is to provide a laser device and a sewing machine, which can ensure that the cutting surface is located at the focus of the laser head, effectively avoiding local burning, and can ensure that the cutting surface is flat and beautiful while cutting quickly and efficiently.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In one aspect, a laser device is provided for cutting fabric, comprising:

[0007] A laser generator is placed on the workbench of the sewing machine;

[0008] a laser head, movably disposed on the laser generator in a vertical direction;

[0009] The pressing assembly includes a pressing mechanism and a presser foot. The pressing mechanism is arranged on the laser head. The presser foot is arranged between the workbench and the laser head and is connected to the output end of the pressing mechanism. The presser foot is configured to press the fabric to be cut. An avoidance hole is provided on the presser foot. The avoidance hole is used to allow the laser emitted by the laser head to pass through.

[0010] As an optional solution for the laser device, the laser device further includes a lifting mechanism, which is arranged on the laser generator, and the laser head is connected to the output end of the lifting mechanism, and the lifting mechanism can drive the laser head to move in a vertical direction.

[0011] As an optional solution for the laser device, the pressing assembly also includes a driving rod, which extends in the vertical direction and is arranged between the output end of the pressing mechanism and the presser foot; under the drive of the pressing mechanism, the driving rod can move in the vertical direction to drive the presser foot to move in the vertical direction.

[0012] As an optional solution for the laser device, the pressing assembly further includes a connecting plate, one end of which is connected to the driving rod, and the other end of which is connected to the presser foot.

[0013] As an optional solution for the laser device, the laser device further includes an air suction component. An exhaust hole is provided on the presser foot, and the exhaust hole is connected to the air suction component. The air suction component can absorb smoke and dust generated when the fabric is cut.

[0014] As an optional solution for the laser device, a plurality of exhaust holes are arranged at intervals along the circumference of the presser foot, and each of the exhaust holes is connected to the air suction component.

[0015] As an optional solution of the laser device, the laser device further includes an adapter, which is connected between the laser generator and the laser head.

[0016] As an optional solution of the laser device, the laser head includes:

[0017] The connecting portion extends in a vertical direction and is connected to the laser generator; the pressurizing mechanism is provided on one side of the connecting portion;

[0018] The emitting portion is connected to an end of the connecting portion away from the laser generator, and the emitting portion is tapered.

[0019] As an optional solution for the laser device, a connecting piece is sleeved on the connecting portion, and the pressurizing mechanism is arranged on the connecting piece.

[0020] On the other hand, a sewing machine is provided, comprising the laser device described above.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a laser device for cutting fabrics. The laser device includes a laser generator, a laser head, and a pressing assembly. The laser generator is arranged on the workbench of the sewing machine. The laser head is movably arranged on the laser generator in the vertical direction to adaptively adjust the distance between the laser head and the fabric to be cut. The pressing assembly includes a pressing mechanism and a presser foot. The pressing mechanism is arranged on the laser head. The presser foot is arranged between the workbench and the laser head and is connected to the output end of the pressing mechanism. Driven by the pressing mechanism, the presser foot can move in the vertical direction between the workbench and the laser head to compact or loosen the fabric to be cut. The presser foot is provided with an avoidance hole, which is used to allow the laser emitted by the laser head to pass through to cut the fabric. When cutting soft and thick fabrics such as sponge or down, the presser foot can first compact the fabric so that the cutting surfaces on both sides of the fabric are located at the focus of the laser head, which enables fast and efficient cutting, and the cut surface is flat and beautiful, effectively avoiding uneven cutting surfaces or even partial burning of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall schematic diagram of the laser device provided in the specific embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is an overall schematic diagram of the laser device provided in the specific embodiment of the present utility model. Figure 2 ;

[0025] Figure 3 It is a cross-sectional view of a laser device provided in an embodiment of the present utility model.

[0026] In the picture:

[0027] 1. Laser generator;

[0028] 2. Laser head; 21. Connecting part; 211. Connecting piece; 22. Transmitting part;

[0029] 3. Press the component;

[0030] 31. Pressing mechanism; 32. Presser foot; 320. Avoidance hole; 321. Exhaust hole;

[0031] 33. Driving rod; 34. Connecting plate;

[0032] 4. Lifting mechanism;

[0033] 5. Adapter. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] like Figures 1 to 3As shown, this embodiment provides a laser device for cutting fabrics. The laser device includes a laser generator 1, a laser head 2, and a pressing assembly 3. The laser generator 1 is disposed on the workbench of the sewing machine, and the laser head 2 is movably disposed on the laser generator 1 in the vertical direction to adaptively adjust the distance between the laser head 2 and the fabric to be cut. The pressing assembly 3 includes a pressing mechanism 31 and a presser foot 32. The pressing mechanism 31 is disposed on the laser head 2, and the presser foot 32 is disposed between the workbench and the laser head 2 and connected to the output end of the pressing mechanism 31. Driven by the pressing mechanism 31, the presser foot 32 can move vertically between the workbench and the laser head 2 to compact or loosen the fabric to be cut. The presser foot 32 is provided with an avoidance hole 320, which is used to allow the laser emitted by the laser head 2 to pass through to cut the fabric. When cutting soft and thick fabrics such as sponge or down, the presser foot 32 can first compact the fabric so that the cutting surfaces on both sides of the fabric are located at the focus of the laser head 2, which enables fast and efficient cutting, and the cutting surface is flat and beautiful, effectively avoiding uneven cutting surfaces or even partial burning of the fabric.

[0040] Specifically, the presser foot 32 is circular, and the avoidance hole 320 is located at the center of the presser foot 32, so that the circumference of the part to be cut is pressed evenly, thereby ensuring the flatness of the cutting point.

[0041] For example, the pressurizing mechanism 31 is a common air cylinder, which can be used as long as it can drive the presser foot 32 to move in the vertical direction. In addition, the laser generator 1 and the laser head 2 are both existing devices disclosed in the prior art, and their specific structures and principles refer to the prior art.

[0042] Optionally, the laser device further includes a lifting mechanism 4, which is disposed on the laser generator 1, and the laser head 2 is connected to the output end of the lifting mechanism 4. The lifting mechanism 4 is capable of driving the laser head 2 to move in a vertical direction. For example, the lifting mechanism 4 is a linear drive motor commonly used in the art, which has a compact structure, low power loss, and high movement speed, and can achieve high-precision positioning control within different speed ranges.

[0043] Alternatively, as Figure 1 As shown, the pressing assembly 3 further includes a drive rod 33, which extends vertically and is disposed between the output end of the pressing mechanism 31 and the presser foot 32. Driven by the pressing mechanism 31, the drive rod 33 can move vertically, thereby driving the presser foot 32 to move vertically, thereby pressing or loosening the fabric to be cut. This arrangement can provide a guide for the movement of the presser foot 32, ensuring the accuracy of the movement direction of the presser foot 32.

[0044] Specifically, in this embodiment, three driving rods 33 are arranged at intervals; in other embodiments, the number of driving rods 33 can be set as needed and is not specifically limited here.

[0045] Further, if Figure 2 As shown, the pressing assembly 3 further includes a connecting plate 34, one end of the connecting plate 34 is connected to the driving rod 33, and the other end is connected to the presser foot 32. Specifically, in this embodiment, referring to Figure 3 The connecting plate 34 is bent, making the structure more compact and effectively improving space utilization.

[0046] Optionally, the laser device further includes an air suction component (not shown in the figure). Figure 1 As shown, an exhaust hole 321 is provided on the presser foot 32, and the exhaust hole 321 is connected to the suction component. The suction component can suck the smoke and dust generated when the fabric is cut, and the smoke and dust generated during the cutting process can be sucked away in time to prevent pollution of the working environment.

[0047] Specifically, the air suction component is an air pump commonly used in the art, which will not be described in detail here.

[0048] Furthermore, a plurality of exhaust holes 321 are provided at intervals along the circumference of the presser foot 32, and each exhaust hole 321 is connected to the air suction component. The above arrangement can more promptly and quickly remove the smoke generated by cutting.

[0049] Illustratively, in this embodiment, three exhaust holes 321 are provided; in other embodiments, the number of exhaust holes 321 can be set as needed.

[0050] Optionally, the laser device further includes an adapter 5. The adapter 5 is connected between the laser generator 1 and the laser head 2 to facilitate the connection between the laser head 2 and the laser generator 1.

[0051] Alternatively, as Figure 3 As shown, the laser head 2 includes a connecting portion 21 and an emitting portion 22. The connecting portion 21 extends vertically and is connected to the laser generator 1. The emitting portion 22 is connected to the end of the connecting portion 21 away from the laser generator 1 and has a conical shape. A pressurizing mechanism 31 is disposed on one side of the connecting portion 21. Driven by the lifting mechanism 4, the connecting portion 21, the pressurizing mechanism 31, the connecting plate 34, and the presser foot 32 can move vertically simultaneously. Once the laser head 2 is in place, the presser foot 32 and the connecting plate 34 are further driven by the pressurizing mechanism 31 to move vertically to compress the fabric to be cut. This simple and convenient operation helps improve cutting efficiency.

[0052] Furthermore, a connecting piece 211 is sleeved on the connecting portion 21 , and the pressurizing mechanism 31 is disposed on the connecting piece 211 to facilitate installation of the pressurizing mechanism 31 .

[0053] In addition, this embodiment also provides a sewing machine, including the above-mentioned laser device, which has all the beneficial effects of the above-mentioned laser device and will not be described in detail here.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A laser device for cutting fabrics, characterized in that: include: A laser generator (1) is arranged on a workbench of a sewing machine; A laser head (2) is movably arranged on the laser generator (1) in a vertical direction; The pressing assembly (3) comprises a pressing mechanism (31) and a presser foot (32), wherein the pressing mechanism (31) is arranged on the laser head (2), and the presser foot (32) is arranged between the workbench and the laser head (2) and connected to the output end of the pressing mechanism (31), and the presser foot (32) is configured to press the fabric to be cut, and an avoidance hole (320) is provided on the presser foot (32), and the avoidance hole (320) is used to allow the laser emitted by the laser head (2) to pass through.

2. The laser device according to claim 1, characterized in that The laser device further comprises a lifting mechanism (4), the lifting mechanism (4) being arranged on the laser generator (1), and the laser head (2) being connected to the output end of the lifting mechanism (4), and the lifting mechanism (4) being capable of driving the laser head (2) to move in a vertical direction.

3. The laser device according to claim 1, wherein The pressing assembly (3) further includes a driving rod (33), which extends in a vertical direction and is arranged between the output end of the pressing mechanism (31) and the presser foot (32); under the drive of the pressing mechanism (31), the driving rod (33) can move in a vertical direction to drive the presser foot (32) to move in the vertical direction.

4. The laser device according to claim 3, characterized in that The pressing assembly (3) further comprises a connecting plate (34), one end of the connecting plate (34) being connected to the driving rod (33) and the other end being connected to the presser foot (32).

5. The laser device according to claim 1, wherein The laser device further comprises an air suction component. An exhaust hole (321) is provided on the presser foot (32). The exhaust hole (321) is connected to the air suction component. The air suction component can suck smoke generated when the fabric is cut.

6. The laser device according to claim 5, characterized in that A plurality of exhaust holes (321) are arranged at intervals along the circumference of the presser foot (32), and each exhaust hole (321) is connected to the air suction component.

7. The laser device according to claim 1, wherein The laser device further comprises an adapter (5), wherein the adapter (5) is connected between the laser generator (1) and the laser head (2).

8. The laser device according to claim 1, wherein The laser head (2) comprises: The connecting portion (21) extends in a vertical direction and is connected to the laser generator (1); the pressurizing mechanism (31) is arranged on one side of the connecting portion (21); The emitting portion (22) is connected to an end of the connecting portion (21) away from the laser generator (1), and the emitting portion (22) is tapered.

9. The laser device according to claim 8, characterized in that A connecting piece (211) is sleeved on the connecting portion (21), and the pressurizing mechanism (31) is arranged on the connecting piece (211).

10. A sewing machine, characterized in that: The laser device comprises any one of claims 1 to 9.