Extra-wide stitch sewing machine

Abstract

The utility model relates to the field of sewing machines, in particular to an extra-wide stitch sewing machine which comprises a needle plate, a needle passing groove is formed in the needle plate and used for allowing a sewing needle to penetrate through, the distance L1 between the needle passing groove and the edge of the needle plate is larger than 4 mm in the A direction, the needle passing groove penetrates through the needle plate in the cloth conveying direction, the A direction is parallel to the needle plate, and the A direction is perpendicular to the cloth conveying direction. The sewing thread penetrates through the cloth at the needle passing groove and is wound on the needle plate, so that the maximum stitch width is equal to the distance L1, the actual stitch width can be adjusted to be smaller than the distance L1 by tensioning the sewing thread, and a sewing person can adjust the stitch width to achieve the optimal sewing effect according to the characteristics and requirements of sewing materials.

Description

Technical Field

[0001] This application relates to the field of sewing machines, and particularly to an extra-wide stitch sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so as to interweave or sew together one or more layers of fabrics.

[0003] The feeding process of the sewing machine mainly relies on the reciprocating elliptical motion of the feed dog bracket: by continuously lifting and pulling the fabric on the needle plate through the feed dog bracket.

[0004] The stitch width of a sewing machine refers to the maximum width of the stitch expanding horizontally during the sewing process. The adjustment of the stitch width is crucial for the sewing effect, which affects the aesthetics and strength of the sewing. In actual operation, according to the characteristics and requirements of the sewing material, the sewer can adjust the stitch width to achieve the best sewing effect. Utility Model Content

[0005] In order to increase the maximum stitch width, this application provides an extra-wide stitch sewing machine.

[0006] The extra-wide stitch sewing machine provided by this application adopts the following technical solutions:

[0007] An extra-wide stitch sewing machine includes a needle plate,

[0008] The needle plate is provided with a needle passing slot for the sewing needle to pass through,

[0009] Along the A direction, the distance L1 from the needle passing slot to the edge of the needle plate is > 4 mm,

[0010] The needle passing slot penetrates the needle plate along the fabric conveying direction,

[0011] The A direction is parallel to the needle plate and perpendicular to the fabric conveying direction.

[0012] By adopting the above technical solution, the sewing thread passes through the fabric at the needle passing slot and winds around the needle plate, so that the maximum stitch width is equal to the distance L1, and the actual stitch width can be adjusted to be less than the distance L1 by tightening the sewing thread.

[0013] Preferably, the distance L1 ≥ 10 mm.

[0014] By adopting the above technical solution, a larger stitch width adjustment range is provided for the sewer.

[0015] Preferably, the needle plate includes a main board and a thread arranging board,

[0016] The thread arranging board is connected to one side of the main board along the A direction, and the needle passing slot is located on the side of the thread arranging board facing the main board,

[0017] Forward along the fabric conveying direction, the width of the wire arranging plate is reduced.

[0018] By adopting the above technical solution, the sewing thread passes through the fabric at the needle slot, and the sewing thread winds around the ideal plate. As the fabric is conveyed forward, the sewing thread moves forward accordingly, and the width of the wire arranging plate is reduced, which is conducive to the sewing thread disengaging from the wire arranging plate.

[0019] Preferably, forward along the fabric conveying direction, the thickness of the wire arranging plate is reduced.

[0020] By adopting the above technical solution, as the fabric is conveyed forward, the sewing thread moves forward accordingly, which is conducive to the sewing thread disengaging from the wire arranging plate.

[0021] Preferably, the needle plate further includes a guiding plate.

[0022] The guiding plate is connected to one side of the main board along the A direction.

[0023] Along the fabric conveying direction, the guiding plate is located behind the wire arranging plate, and there is a gap between the guiding plate and the wire arranging plate.

[0024] The upper surface of the guiding plate is lower than the upper surface of the main board.

[0025] By adopting the above technical solution, after the sewing thread disengages from the wire arranging plate, the fabric always moves forward along the main board, tightens the sewing thread under the fabric, and displaces the sewing thread above the needle plate through the guiding plate to output the sewn fabric.

[0026] Preferably, a guiding surface is provided on the upper surface at one end of the guiding plate close to the wire arranging plate, and the distance from the guiding surface to the lower surface of the guiding plate increases as it moves away from the wire arranging plate.

[0027] By adopting the above technical solution, the guiding surface plays a guiding role in moving the sewing thread above the needle plate.

[0028] Preferably, the lower edge at one end of the wire arranging plate close to the guiding plate is higher than the upper surface of the guiding plate.

[0029] By adopting the above technical solution, when the sewing thread is tightened, the sewing thread adheres to the lower surface of the wire arranging plate, making the sewing thread higher than the upper surface of the guiding plate, which is conducive to guiding the sewing thread above the needle plate.

[0030] Preferably, it further includes a presser foot, and the presser foot includes a pressing plate and a baffle.

[0031] The lower surface of the pressing plate is used to contact the fabric.

[0032] The baffle is perpendicular to the pressing plate, the baffle is perpendicular to the fabric conveying direction, and the height of the baffle is equal to the distance L1.

[0033] By adopting the above technical solution, the baffle can be used to block foreign objects and prevent them from interfering with the sewing machine.

[0034] Preferably, along the cloth conveying direction, the baffle is located in the middle of the wire management plate.

[0035] By adopting the above technical solution, the baffle is close to the sewing position, ensuring effective blocking of foreign objects.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. The thread passes through the fabric at the needle groove and is wound around the needle plate so that the maximum stitch width is equal to the distance L1. The actual stitch width can be adjusted to be less than the distance L1 by tightening the thread.

[0038] 2. Provides a wider range of stitch width adjustment for sewing users. According to the characteristics and needs of the sewing materials, sewing users can adjust the stitch width to achieve the best sewing effect;

[0039] 3. As the fabric is transported forward, the thread moves forward, and the width and thickness of the cable management plate are reduced, which is conducive to the thread leaving the cable management plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the needle plate and presser foot structure.

[0041] Figure 2 This is a top view of the needle plate.

[0042] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0043] Explanation of the accompanying reference numerals: 1. needle plate; 11. main plate; 111. avoidance groove; 12. wire management plate; 121. needle groove; 13. guide plate; 131. guide surface; 2. presser foot; 21. press plate; 22. baffle; 31. feed trough; 32. feed dog. DETAILED DESCRIPTION

[0044] The present application is further described in detail below with reference to the accompanying drawings.

[0045] The embodiment of the present application discloses an extra-wide stitch sewing machine.

[0046] Reference Figure 1 The extra-wide stitch sewing machine includes a needle plate 1. The cloth is transported at the upper surface of the needle plate 1.

[0047] Reference Figure 1 and Figure 2 The needle plate 1 includes a main plate 11 , a wire management plate 12 and a guide plate 13 .

[0048] The cable management plate 12 is fixedly connected to one side of the main board 11 along the A direction, which is parallel to the main board 11 and perpendicular to the fabric feed direction. A needle slot 121 is provided on the side of the cable management plate 12 facing the main board 11. The needle slot 121 extends through the cable management plate 12 along the fabric feed direction.

[0049] Along direction A, the distance L1 from the needle groove 121 to the edge of the cable management plate 12 facing away from the main board 11 is greater than 4 mm. In this embodiment, the distance L1 is greater than or equal to 10 mm.

[0050] Reference Figure 2 and Figure 3 , the needle groove 121 is used for the sewing needle to pass through. At the same time, the main board 11 is provided with an avoidance groove 111 on one side facing the wire management plate 12, and the avoidance groove 111 is connected to the needle groove 121, which is conducive to the sewing needle passing through the avoidance groove 111 / needle groove 121.

[0051] Reference Figure 1 and Figure 2 , moving forward along the cloth conveying direction: the width of the wire management plate 12 is reduced, and the thickness of the wire management plate 12 is reduced.

[0052] The guide plate 13 is fixedly connected to one side of the main board 11 along the direction A, and the guide plate 13 and the cable management plate 12 are located on the same side of the main board 11 .

[0053] Along the fabric conveying direction: the guide plate 13 is located behind the wire management plate 12 , and there is a distance between the guide plate 13 and the wire management plate 12 ; the needle groove 121 is connected to the distance.

[0054] The upper surface of the guide plate 13 is lower than the upper surface of the main board 11 ; at the same time, the lower edge of one end of the cable management plate 12 close to the guide plate 13 is higher than the upper surface of the guide plate 13 .

[0055] A guide surface 131 is provided on the upper surface of one end of the guide plate 13 close to the cable management plate 12 . The distance from the guide surface 131 to the lower surface of the guide plate 13 increases as the distance from the cable management plate 12 increases.

[0056] Reference Figure 1 and Figure 3 , the extra wide stitch sewing machine also includes a presser foot 2. The presser foot 2 is located just above the needle plate 1.

[0057] The presser foot 2 includes a pressing plate 21 and a stopper 22. The lower surface of the pressing plate 21 is used to contact the cloth.

[0058] The baffle 22 is perpendicular to the pressing plate 21 and the cloth conveying direction, and its height is equal to the distance L1. Along the cloth conveying direction: the baffle 22 is located in the middle of the cable management plate 12 and in front of the avoidance groove 111.

[0059] In this embodiment: the main board 11 and the guide board 13 are provided with a feeding groove 31 for the feeding teeth 32 to be embedded therein.

[0060] The implementation principle of a super-wide stitch sewing machine according to an embodiment of the present application is as follows: the sewing thread passes through the fabric at the needle passing groove 121, and the sewing thread winds around the needle plate 1, so that the maximum stitch width is equal to the distance L1. The actual stitch width can be adjusted to be less than the distance L1 by tightening the sewing thread.

[0061] To provide a larger stitch width adjustment range for the sewer, according to the characteristics and requirements of the sewing material, the sewer can adjust the stitch width to achieve the best sewing effect.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A super-wide stitch sewing machine, characterized in that, It includes a needle plate (1). The needle plate (1) is provided with a needle passing groove (121) for a sewing needle to pass through. Along the A direction, the distance L1 from the needle passing groove (121) to the edge of the needle plate (1) is greater than 4 mm. The needle passing groove (121) penetrates the needle plate (1) along the fabric conveying direction. The A direction is parallel to the needle plate (1), and the A direction is perpendicular to the fabric conveying direction.

2. The extra-wide stitch sewing machine according to claim 1, wherein The distance L1 is ≥ 10 mm.

3. The extra-wide stitch sewing machine according to claim 1, characterized in that, The needle plate (1) includes a main board (11) and a thread arranging board (12). The thread arranging board (12) is connected to one side of the main board (11) along the A direction, and the needle passing groove (121) is located on the side of the thread arranging board (12) facing the main board (11). Moving forward along the fabric conveying direction, the width of the thread arranging board (12) decreases.

4. The extra-wide stitch sewing machine according to claim 3, characterized in that, Moving forward along the fabric conveying direction, the thickness of the thread arranging board (12) decreases.

5. The extra-wide stitch sewing machine according to claim 3, characterized in that, The needle plate (1) further includes a guiding board (13). The guiding board (13) is connected to one side of the main board (11) along the A direction. Along the fabric conveying direction, the guiding board (13) is located behind the thread arranging board (12), and there is a gap between the guiding board (13) and the thread arranging board (12). The upper surface of the guiding board (13) is lower than the upper surface of the main board (11).

6. The extra-wide stitch sewing machine according to claim 5, characterized in that, At the upper surface of one end of the guiding board (13) close to the thread arranging board (12), there is a guiding surface (131), and the distance from the guiding surface (131) to the lower surface of the guiding board (13) increases as it moves away from the thread arranging board (12).

7. The extra-wide stitch sewing machine according to claim 5, characterized in that, The lower edge of one end of the thread arranging board (12) close to the guiding board (13) is higher than the upper surface of the guiding board (13).

8. The extra-wide stitch sewing machine according to claim 1, characterized in that, It further includes a presser foot (2), and the presser foot (2) includes a pressing plate (21) and a baffle (22). The lower surface of the pressing plate (21) is used to contact the fabric. The baffle (22) is perpendicular to the pressing plate (21), the baffle (22) is perpendicular to the fabric conveying direction, and the height of the baffle (22) is equal to the distance L1.

9. The extra-wide stitch sewing machine according to claim 8, wherein, Along the fabric conveying direction, the baffle (22) is located in the middle of the thread arranging board (12).

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