Bird nest prevention presser foot

Abstract

The utility model relates to the technical field of sewing machines, in particular to an anti-nest presser foot which comprises a foot handle and a foot body, the foot handle and the foot body are integrally arranged, a needle hole is formed in the foot body, the needle hole penetrates through the foot body, an installation groove is further formed in the foot body, the installation groove is communicated with the needle hole, and the needle hole penetrates through the installation groove. A mounting groove is formed in the foot body, a blade is detachably connected into the mounting groove, one end of the blade extends into the needle hole, the end, extending into the needle hole, of the blade can abut against the groove wall of the mounting groove, the foot body is further provided with a locking piece corresponding to the mounting groove, and the locking piece is used for abutting against and limiting the blade. According to the thread cutting device, the mounting groove communicated with the needle hole is formed, the blade is arranged in the mounting groove, meanwhile, the blade is limited through the locking piece, during mounting, the blade only needs to be embedded into the mounting groove, then the blade abuts against the locking piece, the blade can be fixed, then the blade can cut a thread end, and the mounting convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an anti-bird nest presser foot. Background Art

[0002] A sewing machine usually uses a sewing thread to form stitches on the sewing material, thereby interweaving and sewing one or more layers of sewing material together. When starting to sew, it is usually necessary to leave some thread ends at the needle eye to reduce the possibility of the sewing thread falling off the needle. However, during the sewing process, it is easy for a bird's nest-shaped thread end to form at the position where the thread end is left. This type of thread end is called a bird's nest, which affects the sewing material.

[0003] The bird nest prevention presser foot in the prior art is usually provided with a blade to cut the thread ends at the bird nest, but the blade in the prior art is installed in a slot or other position with a small operating space, which makes it inconvenient to install the blade. Utility Model Content

[0004] In order to solve the problem that the anti-bird nest presser foot in the prior art is usually provided with a blade to cut the thread ends at the bird's nest, but the blade in the existing technology is installed in a groove or other position with small operating space, and it is inconvenient to install the blade, the present application provides a bird's nest presser foot, and the specific solution is as follows.

[0005] A bird's nest prevention presser foot comprises a foot handle and a foot body, wherein the foot handle and the foot body are integrally arranged, a pinhole is provided on the foot body, the pinhole runs through the foot body, a mounting groove is also provided on the foot body, the mounting groove is communicated with the pinhole, a blade is detachably connected in the mounting groove, one end of the blade extends into the pinhole and after the extension, the end of the blade extending into the pinhole can abut against the groove wall of the mounting groove, and a locking piece is also provided on the foot body corresponding to the mounting groove, and the locking piece is used to tighten and limit the blade.

[0006] By adopting the above technical solution, a mounting groove connected to the pinhole is provided, and a blade is provided in the mounting groove, and the blade is restricted by a locking member. When installing, the blade only needs to be embedded in the mounting groove, and then the blade is pressed tightly by the locking member to complete the fixing of the blade. Then the blade can cut the thread end, thereby improving the convenience of installation.

[0007] Optionally, the mounting groove is arranged to penetrate the foot body and a penetration direction of the mounting groove is perpendicular to a penetration direction of the pinhole.

[0008] By adopting the above technical solution, the installation groove is set through the foot body and is perpendicular to the penetration direction of the pinhole. After the blade is installed, it can just cut the thread end extending into the pinhole, and the blade can be extended from both sides of the foot body for installation, which is more convenient to install.

[0009] Optionally, the locking member includes a set screw, and the set screw is detachably connected to the foot body.

[0010] By adopting the above technical solution and setting the set screw, the blade can be pressed more tightly, thereby further improving the stability after installation and reducing the possibility of the blade falling off.

[0011] Optionally, the foot body is provided with a threaded hole corresponding to the set screw, one end of the threaded hole is connected to the mounting groove, and the other end of the threaded hole is connected to the outside.

[0012] By adopting the above technical solution, a threaded hole is provided, the threaded hole is connected to the installation groove, and the blade can be pushed by tightening the set screw into the threaded hole to complete the installation of the blade, thereby further improving the convenience of installing the blade.

[0013] Optionally, an inclined surface is provided on the blade, and a side of the inclined surface close to the pinhole is lower than a side away from the pinhole.

[0014] By adopting the above technical solution and setting an inclined surface on the blade, the thread end can be cut through one side of the inclined surface, thereby improving the cutting efficiency and reducing the situation where the bird's nest cannot be removed.

[0015] Optionally, the pinhole is arranged in an elliptical shape.

[0016] By adopting the above technical solution, the needle hole is elliptical, which can increase the size of the needle hole to a certain extent and reduce the situation where the pin head is cut off by the blade during sewing.

[0017] Optionally, the size of the pinhole includes 2.9mm-3.8mm.

[0018] By adopting the above technical solution, the size of the needle hole is increased to 2.9mm-3.8mm, which can further reduce the situation where the blade cuts the thread during sewing and improve the stability during work.

[0019] Optionally, the set screw comprises a flat head set screw.

[0020] By adopting the above technical solution, the flat head set screw can press the blade more closely, thereby further improving the stability after installation, thereby further improving the installation effect.

[0021] In summary, this application has at least the following beneficial effects:

[0022] The present application solves the problem that the anti-bird nest presser foot in the prior art is usually provided with a blade to cut the thread ends at the bird's nest, but the blade in the prior art is installed in a groove or other position with small operating space, which makes it inconvenient to install the blade. The present application installs the blade by providing an installation groove and tightening it through a locking piece. The blade can be embedded in the side wall of the foot body and then the fixing screw can be tightened to fix the blade, thereby improving the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereogram of this embodiment.

[0024] Figure 2 is a cross-sectional view of this embodiment.

[0025] Description of reference numerals:

[0026] 1. Foot handle;

[0027] 2. Foot body; 21. Pinhole; 22. Mounting slot; 23. Threaded hole;

[0028] 3. blade; 31. inclined surface;

[0029] 4. Flat head set screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 , the present application is further described in detail through specific embodiments.

[0031] A bird nest prevention presser foot, such as Figure 1 and Figure 2 As shown, it includes a foot handle 1 and a foot body 2, the foot handle 1 and the foot body 2 are integrally arranged, a pinhole 21 is opened on the foot body 2, and the pinhole 21 is arranged through the foot body 2. The foot body 2 is also provided with a mounting groove 22, the mounting groove 22 is communicated with the pinhole 21, and a blade 3 is detachably connected in the mounting groove 22, one end of the blade 3 extends into the pinhole 21, and after the extension, the end of the blade 3 extending therein can abut against the groove wall of the mounting groove 22, and the foot body 2 is also provided with a locking piece corresponding to the mounting groove 22, and the locking piece is used to abut and limit the blade 3. In specific implementation, the foot body 2 is used to abut and press the sewing material, and the thread end at the starting position of the sewing material passes through the pinhole 21 and is cut by the blade 3 at the pinhole 21, thereby reducing the occurrence of bird nests.

[0032] like Figure 1 and Figure 2As shown, the installation groove 22 is set through the foot body 2 and the penetration direction of the installation groove 22 is perpendicular to the penetration direction of the needle hole 21. In specific implementation, since the penetration direction of the installation groove 22 is perpendicular to the penetration direction of the needle hole 21, the blade 3 in the installation groove 22 can be just perpendicular to the thread end passing through the needle hole 21, which can better cut the thread end, and when installing the blade 3, it can also be embedded from the side wall of the foot body 2, and then tightened by the locking piece, further improving the convenience of dark rotation.

[0033] like Figure 1 and Figure 2 As shown, the locking member includes a set screw, which is detachably connected to the foot body 2. In a specific implementation, the set screw includes a flat head set screw 4, which can more tightly press the blade 3, thereby achieving a stable installation of the blade 3, further improving the working stability, and reducing the blade 3 from falling off.

[0034] like Figure 1 and Figure 2 As shown, the foot body 2 is provided with a threaded hole 23 corresponding to the set screw, one end of the threaded hole 23 is connected to the installation groove 22, and the other end of the threaded hole 23 is connected to the outside. In specific implementation, the set screw can be embedded in the threaded hole 23, and the set screw can be disassembled from the outside, further improving the convenience of installation operation.

[0035] like Figure 1 and Figure 2 As shown, the blade 3 is provided with an inclined surface 31, and the side of the inclined surface 31 close to the needle hole 21 is lower than the side away from the needle hole 21. In specific implementation, the thread can be cut along the inclined surface 31, thereby further improving the cutting efficiency and reducing the situation where the thread cannot be cut.

[0036] like Figure 1 and Figure 2 As shown, the pinhole 21 is elliptical, and the size of the pinhole 21 includes 2.9mm-3.8mm. In specific implementation, the size of the pinhole 21 is increased and elliptical. In this embodiment, the size of the pinhole 21 is 3.8mm, which can reduce the situation of accidentally cutting the thread end due to the pinhole 21 being too small during operation.

[0037] Working principle: the foot body 2 is controlled by the foot handle 1, the foot body 2 can press the sewing material, the needle hole 21 can allow the beginning of the sewing thread to pass through, and the blade 3 in the foot body 2 can cut the thread end at the beginning, thereby reducing the occurrence of bird's nests, and by opening a through installation groove 22 and setting a corresponding locking screw, the blade 3 can be pressed by embedding the blade 3 and tightening the locking screw, thereby realizing the installation of the blade 3.

[0038] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bird nest prevention presser foot, comprising a foot handle (1) and a foot body (2), wherein the foot handle (1) and the foot body (2) are integrally arranged, and characterized in that: The foot body (2) is provided with a pinhole (21), the pinhole (21) being arranged through the foot body (2); the foot body (2) is also provided with a mounting groove (22), the mounting groove (22) being communicated with the pinhole (21); a blade (3) is detachably connected in the mounting groove (22); one end of the blade (3) is inserted into the pinhole (21), and after the blade (3) is inserted into the pinhole (21), the end of the blade (3) that is inserted can abut against the groove wall of the mounting groove (22); the foot body (2) is also provided with a locking member corresponding to the mounting groove (22), the locking member being used to abut and restrict the blade (3).

2. The anti-bird nest presser foot according to claim 1, characterized in that: The installation groove (22) is arranged to penetrate the foot body (2), and the penetration direction of the installation groove (22) is perpendicular to the penetration direction of the pinhole (21).

3. The anti-bird nest presser foot according to claim 1, characterized in that: The locking member comprises a set screw, and the set screw is detachably connected to the foot body (2).

4. The anti-bird nest presser foot according to claim 3, characterized in that: The foot body (2) is provided with a threaded hole (23) corresponding to the set screw, one end of the threaded hole (23) is communicated with the mounting groove (22), and the other end of the threaded hole (23) is communicated with the outside.

5. The anti-bird nest presser foot according to claim 1, characterized in that: The blade (3) is provided with an inclined surface (31), and a side of the inclined surface (31) close to the needle hole (21) is lower than a side away from the needle hole (21).

6. The anti-bird nest presser foot according to claim 1, characterized in that: The pinhole (21) is arranged in an elliptical shape.

7. The anti-bird nest presser foot according to claim 1, characterized in that: The size of the pinhole (21) includes 2.9 mm-3.8 mm.

8. The anti-bird nest presser foot according to claim 3, characterized in that: The set screw comprises a flat head set screw (4).

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