Cloth cutting scissors stable in blade connection

Abstract

The utility model relates to cloth cutting scissors with blades connected stably, which comprise a cloth cutting scissors shell and a movable blade assembly arranged on the front side of the cloth cutting scissors shell, a static blade assembly is further arranged on the front side of the cloth cutting scissors shell, the static blade assembly is arranged on the lower side of the movable blade assembly, and a cloth guide clamping opening is formed by the static blade assembly and the movable blade assembly. The static blade assembly comprises a knife rest fixedly connected with the cloth cutting shear shell and a static blade fixing frame arranged on the inner side of the knife rest, the end of the static blade fixing frame is fixedly connected with a static blade corresponding to the movable blade, the inner side of the knife rest is provided with a limiting frame for horizontally limiting the static blade fixing frame, and the knife rest is fixedly connected with the limiting frame. The cloth cutting scissors have the advantages that the connection stability of the static blade and the knife rest is guaranteed, the knife rest is prevented from deforming, the static blade is prevented from being abraded and loosened, and normal cutting work of the cloth cutting scissors is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of power tools, specifically relating to a fabric cutter with a stable blade connection. Background Technology

[0002] In garment production, fabric cutting is a crucial step. With the emergence of various production methods, different types of fabric cutting shears have appeared to facilitate production work, and portable automatic fabric cutting shears have come into being. Existing fabric cutting shears generally consist of a moving blade and a stationary blade. The moving and stationary blades are in close contact and form a fabric guide clamp. During use, the moving blade is constantly rotating, generating vibrations in the stationary blade. Because the stationary blade is fixedly connected to the blade holder, it is prone to loosening or displacement. In severe cases, this can deform the blade holder, compromising the normal cutting operation of the fabric cutting shears. Therefore, the stability of the connection between the stationary blade and the blade holder is particularly important. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a fabric cutter with a stable blade connection, ensuring the connection stability between the stationary blade and the blade holder, avoiding deformation of the blade holder and wear and loosening of the stationary blade, and ensuring the normal cutting operation of the fabric cutter.

[0004] The purpose of this utility model is achieved through the following technical solution: a fabric cutter with stable blade connection, including a fabric cutter housing and a movable blade assembly placed on the front side of the fabric cutter housing. The front side of the fabric cutter housing also has a stationary blade assembly, which is placed on the lower side of the movable blade assembly and forms a fabric guide clamp with the movable blade assembly.

[0005] The moving blade assembly includes a drive motor assembly disposed inside the fabric cutting shear housing and a moving blade disposed at the drive end of the drive motor assembly. The moving blade is screwed onto the drive end of the drive motor assembly via a pressure cap thread.

[0006] The stationary blade assembly includes a blade holder fixedly connected to the fabric cutting shear housing and a stationary blade fixing bracket placed inside the blade holder. A stationary blade corresponding to the moving blade is fixedly connected to the end of the stationary blade fixing bracket. The inside of the blade holder has a limiting bracket for horizontally limiting the stationary blade fixing bracket. The blade holder and the limiting bracket are fixedly connected. One end of the limiting bracket is fixedly connected to one end of the stationary blade fixing bracket, and the other end of the limiting bracket is limited and engaged with the other end of the stationary blade fixing bracket. The stationary blade and the moving blade contact each other front and back and intersect to form a fabric guide clamp.

[0007] A further improvement of this utility model is that: the end of the blade holder away from the stationary blade is embedded in the fabric cutting shear housing and fixedly connected to the fabric cutting shear housing; the end face of the blade holder near the stationary blade and the moving blade has a replacement groove that facilitates the independent replacement of the two blades; and the side of the blade holder near the stationary blade has an arc-shaped notch that allows the opening of the guide clamp to extend smoothly outward.

[0008] A further improvement of this utility model is that: the stationary blade holder includes a connecting part 1 fixedly connected to the blade holder and an extension part placed on the side end face of the stationary blade. The extension part and the connecting part 1 are horizontally connected as an integral structure. The stationary blade is fixedly disposed on the end face of the extension part near the blade holder. The lower end face of the extension part has an arc protrusion.

[0009] A further improvement of this utility model is that: the limiting frame is disposed between the tool holder and the stationary blade fixing frame, the limiting frame includes a U-shaped part that covers the connecting part and an arc-shaped limiting part that covers the arc protrusion, and there is a connecting part two between the arc-shaped limiting part and the U-shaped part, the U-shaped part, the arc-shaped limiting part and the connecting part two are connected to form an integral structure.

[0010] A further improvement of this utility model is that the drive motor assembly includes a reduction motor disposed inside the fabric cutting shear housing and a bevel gear one disposed on the motor shaft of the reduction motor. The fabric cutting shear housing also has a rotating shaft, on which a bevel gear two meshes with the bevel gear one, and the moving blade is sleeved on the rotating shaft.

[0011] A further improvement of this utility model is that the tail of the fabric cutter housing has a charging interface and a light is provided on the fabric cutter housing.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. In this utility model, the moving blade is fixed to the drive end of the drive motor unit by tightening the pressure cap. The blade holder of the stationary blade assembly is fixedly connected to the fabric cutter housing. The stationary blade is connected to the inner side of the stationary blade fixing frame and is in close contact with the moving blade. The stationary blade fixing frame and the limiting frame are engaged with each other and connected to the blade holder, thereby ensuring the horizontal stability of the stationary blade fixing frame during use, thus ensuring the positional accuracy of the stationary blade, ensuring the connection stability between the stationary blade and the blade holder, avoiding deformation of the blade holder and wear and loosening of the stationary blade, and ensuring the normal cutting operation of the fabric cutter.

[0014] 2. The fabric cutter of this utility model is compact in appearance and easy to hold. The electric fabric cutter replaces the traditional manual cutting. By setting up a convenient charging interface and a light, it improves the user's ease of use and comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fabric cutter with a stable blade connection according to the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the connection of the moving blade assembly.

[0017] Figure 3 for Figure 1 A schematic diagram showing the disassembled state of the stationary blade assembly.

[0018] Figure 4 for Figure 3 A schematic diagram of the middle tool holder.

[0019] Numbering on the map:

[0020] 1-Cloth cutter housing, 2-Moving blade assembly, 3-Stationary blade assembly, 4-Cloth guide clamp;

[0021] 21-Drive motor assembly, 22-Moving blade, 23-Pressure cap

[0022] 31-Tool holder, 32-Stationary blade holder, 33-Stationary blade, 34-Limiting bracket; 311-Replacement slot, 312-Arc notch; 321-Connecting part one, 322-Extension, 323-Arc protrusion; 341-U-shaped part, 342-Arc notch limiting part, 343-Connecting part two. Detailed Implementation

[0023] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship, such as those based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure or unit referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, terms such as “connection,” “provided with,” and “have” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can be described as a mechanical connection, a direct connection, or a connection through an intermediate medium. Those skilled in the art can understand the basic meaning of the above terms in this utility model according to the specific circumstances.

[0026] A type of fabric cutter with a stable blade connection, see reference. Figures 1 to 3 The cutter housing 1 includes a moving blade assembly 2 located on the front side of the cutter housing 1. The front side of the cutter housing 1 also has a stationary blade assembly 3, which is located below the moving blade assembly 2 and forms a fabric guide clamp 4 with the moving blade assembly 2.

[0027] The moving blade assembly 2 includes a drive motor assembly 21 disposed inside the fabric cutting shear housing 1 and a moving blade 22 disposed at the drive end of the drive motor assembly 21. The moving blade 22 is screwed onto the drive end of the drive motor assembly by a pressure cap 23.

[0028] The stationary blade assembly 3 includes a blade holder 31 fixedly connected to the fabric cutting shear housing 1 and a stationary blade fixing bracket 32 ​​placed inside the blade holder 31. A stationary blade 33 corresponding to the moving blade 22 is fixedly connected to the end of the stationary blade fixing bracket 32. The inner side of the blade holder 31 has a limiting bracket 34 for horizontally limiting the stationary blade fixing bracket 32. The blade holder 31 is fixedly connected to the limiting bracket 34. One end of the limiting bracket 34 is fixedly connected to one end of the stationary blade fixing bracket 32, and the other end of the limiting bracket 34 is limited and engaged with the other end of the stationary blade fixing bracket 32. The stationary blade 33 and the moving blade 22 contact each other from front to back and intersect to form a fabric guide clamp 4.

[0029] In this invention, the moving blade 22 is screwed and fixed to the drive end of the drive motor unit by the pressure cap 23. The blade holder 31 of the stationary blade assembly 3 is fixedly connected to the fabric cutter housing 1. The stationary blade 33 is connected to the inner side of the stationary blade fixing frame 32 and is in close contact with the moving blade 22. The stationary blade fixing frame 32 and the limiting frame 34 are engaged with each other and connected to the blade holder 31, thereby ensuring the horizontal stability of the stationary blade fixing frame 32 during use, thereby ensuring the positional accuracy of the stationary blade 33, ensuring the connection stability between the stationary blade 33 and the blade holder 31, avoiding deformation of the blade holder 31 and wear and loosening of the stationary blade 33, and ensuring the normal cutting operation of the fabric cutter.

[0030] Based on this embodiment, refer to Figure 4 The end of the blade holder 31 away from the stationary blade 33 is embedded in the fabric cutting shear housing 1 and fixedly connected to the fabric cutting shear housing 1. The end face of the blade holder 31 near the stationary blade 33 and the moving blade 22 has a replacement groove 311 that facilitates the independent replacement of the two blades. The side of the blade holder 31 near the stationary blade 33 has an arc-shaped notch 312 that allows the opening of the guide clamp 4 to extend smoothly outward.

[0031] The replacement slot 31 of the blade holder 31 is configured to provide space for replacing the moving blade 22, while the arc notch 312 on the blade holder 31 enlarges the opening of the guide clamp 4, making it easier to guide the cut fabric.

[0032] Based on this embodiment, the stationary blade holder 32 includes a connecting part 321 fixedly connected to the blade holder 31 and an extension part 322 placed on the side end face of the stationary blade 33. The extension part 322 and the connecting part 321 are horizontally connected as an integral structure. The stationary blade 33 is fixedly disposed on the end face of the extension part near the blade holder 31. The lower end face of the extension part 322 has an arc protrusion 323.

[0033] Based on this embodiment, the limiting frame 34 is disposed between the tool holder 31 and the stationary blade fixing frame 32. The limiting frame 34 includes a U-shaped part 341 that covers the connecting part 321 and an arc-shaped limiting part 342 that covers the arc protrusion 323. A connecting part 343 is provided between the arc-shaped limiting part 342 and the U-shaped part 341. The U-shaped part 341, the arc-shaped limiting part 342, and the connecting part 343 are connected to form an integral structure.

[0034] In this application, the U-shaped portion 341 of the limiting frame 34 covers the connecting portion 321 of the stationary blade holder 32, and the arc-shaped limiting portion 342 of the limiting frame 34 covers the arc-shaped protrusion 323 of the stationary blade holder 32. Since the limiting frame 34 is fixed to the blade holder 31, and the stationary blade holder 32 is limited in the horizontal direction by the limiting frame 34, the stationary blade holder 32 is prevented from being horizontally deviated under the vibration of the drive motor assembly 21, thus ensuring the positional accuracy of the stationary blade 33.

[0035] Based on this embodiment, the drive motor assembly 21 includes a reduction motor 211 disposed within the fabric cutting shear housing 1 and a bevel gear 212 mounted on the motor shaft of the reduction motor 211. The fabric cutting shear housing 1 also includes a rotating shaft 213, on which a second bevel gear 214 meshes with the first bevel gear 212. The moving blade 22 is sleeved on the rotating shaft 213. When the reduction motor 211 starts, it drives the first bevel gear 212 on its motor shaft to rotate and mesh with the second bevel gear 214, thereby driving the rotating shaft 213 and the moving blade 22 sleeved on the rotating shaft 213 to rotate circumferentially, thus realizing the cutting of the fabric.

[0036] Based on this embodiment, the tail of the fabric cutter housing 1 has a charging interface, and the fabric cutter housing 1 also has a light. The fabric cutter of this utility model is compact in appearance and easy to hold. The electric fabric cutter replaces the traditional manual cutting, and the convenient charging interface and light improve the user's ease of use and comfort.

[0037] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cloth cutting shear with blade connection stability, characterized by: The utility model relates to a cutting and shearing machine, including the cutter shearing shell (1) is placed in the cutter shearing shell (1) front side's moving blade assembly (2), the cutter shearing shell (1) front side also has the static blade assembly (3), the static blade assembly (3) is placed in the downside of moving blade assembly (2) and forms the cloth guide nip (4) with moving blade assembly (2); The moving blade assembly (2) includes a driving motor set (21) disposed in the cutter shearing shell (1) and a moving blade (22) disposed at the driving end of the driving motor set (21), the moving blade (22) is screwed on the driving end of the driving motor set by a gland (23); The static blade assembly (3) includes a blade holder (31) fixedly connected with the cutter shearing shell (1) and a static blade fixing frame (32) disposed inside the blade holder (31), the end of the static blade fixing frame (32) is fixedly connected with a static blade (33) corresponding to the moving blade (22), the inside of the blade holder (31) has a limiting frame (34) limiting the static blade fixing frame (32) horizontally, the blade holder (31) is fixedly connected with the limiting frame (34), one end of the limiting frame (34) is fixedly connected with one end of the static blade fixing frame (32), the other end of the limiting frame (34) is limitingly engaged with the other end of the static blade fixing frame (32), the static blade (33) and the moving blade (22) contact and intersect in front and back to form the cloth guide nip (4).

2. The cloth cutting shear according to claim 1, wherein: The end of the blade holder (31) away from the static blade (33) is embedded in the cutter shearing shell (1) and fixedly connected with the cutter shearing shell (1), the end face of the blade holder (31) close to the static blade (33) and the moving blade (22) has a replacement groove (311) facilitating independent replacement of the two blades, one side of the blade holder (31) close to the static blade (33) has a circular-arc notch portion (312) making the opening of the cloth guide nip (4) extend outward smoothly.

3. The cloth cutting shear according to claim 2, wherein: The static blade fixing frame (32) includes a connecting portion one (321) fixedly connected with the blade holder (31) and an extension portion (322) disposed at the end face of the static blade (33), the extension portion (322) is integrally connected with the connecting portion one (321) horizontally, the static blade (33) is fixedly arranged at the end face of the extension portion close to the blade holder (31), the lower end face of the extension portion (322) has a circular-arc protrusion (323).

4. The cloth cutting shear according to claim 3, wherein: The limiting frame (34) is arranged between the blade holder (31) and the static blade fixing frame (32), the limiting frame (34) includes a U-shaped portion (341) covering the connecting portion one (321) and an arc-mouth limiting portion (342) covering the circular-arc protrusion (323), the arc-mouth limiting portion (342) and the U-shaped portion (341) have a connecting portion two (343) therebetween, the U-shaped portion (341), the arc-mouth limiting portion (342) and the connecting portion two (343) are connected to form an integral structure.

5. The cloth cutting and shearing device according to claim 3, wherein: The driving motor set (21) comprises a speed reduction motor (211) arranged in the cloth cutting shears shell (1) and a conical gear one (212) arranged on the motor shaft of the speed reduction motor (211), and the cloth cutting shears shell (1) further comprises a rotating shaft (213) having a conical gear two (214) engaged with the conical gear one (212), and the moving blade (22) is sleeved on the rotating shaft (213).

6. The blade connection stabilized cloth cutting shear according to claim 5, characterized in that: The tail of the cloth cutting shears shell (1) is provided with a charging interface, and the cloth cutting shears shell is provided with an illuminating lamp.

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