Sewing machine presser foot mechanism for label sewing

Abstract

The utility model discloses a sewing machine presser foot mechanism for label sewing, which comprises a base, a needle plate arranged on the base, a presser foot arranged on the base and corresponding to the needle plate, a machine head arranged above the base, and a needle head arranged on the machine head and corresponding to the presser foot and the needle plate, the presser foot extending assembly comprises an adjusting plate arranged on the connecting base and an extending frame arranged at the front end of the adjusting plate, and the head of the extending frame and the position under the needle head are arranged in a staggered mode. When a label is sewn, a needle head passes through the extending frame of the presser foot extending assembly in the threading process, a thread between two stitches is lengthened by the extending frame, the adjusting plate can adjust the position of the extending frame so as to adjust the length of the thread between the two stitches, the stitches are loose when the label is sewn, subsequent label cutting is facilitated, the working efficiency is high, and the labor intensity of workers is reduced. And manpower is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of textile, concretely relates to sewing machine presser foot mechanism for label sewing. BACKGROUND

[0002] Various mechanical equipment needed by natural fiber or chemical fiber to be processed into textile, the textile machinery also includes chemical engineering machinery of producing chemical fiber in broad sense, its technical level, quality and manufacturing cost are directly related to the development of textile industry. In the process of textile, the classification label needs to be sewn on the product, which is convenient for internal classification and identification, and the classification label is cut off when the product is formally delivered. The existing sewing machine is very close between the stitches when sewing the label, which causes the sewing thread to be attached to the product, and it is very inconvenient to cut off, and even the sharp head of the scissors may pierce the product, thereby producing defective products. Manual sewing is also used, which forms relatively loose stitches, which is convenient for cutting off, but the work efficiency is low and the manpower is wasted. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the purpose of the present application is to provide a sewing machine presser foot mechanism for label sewing, which can make the stitches loose when sewing the label, facilitate the subsequent cutting of the label, and has high work efficiency and saves manpower.

[0004] In order to solve the above-mentioned technical problems, the technical scheme adopted by the present application is as follows: a sewing machine presser foot mechanism for label sewing, comprising a base, a needle plate arranged on the base, a presser foot arranged on the base corresponding to the needle plate, a machine head arranged above the base, a needle head arranged on the machine head corresponding to the presser foot and the needle plate, a connecting seat arranged at the tail of the presser foot, a presser foot extension assembly arranged on the connecting seat, the presser foot extension assembly comprising an adjusting plate arranged on the connecting seat and an extension frame arranged at the front end of the adjusting plate, and the head of the extension frame is arranged in a staggered manner below the needle head. When sewing the label, the needle head will pass through the extension frame of the presser foot extension assembly during the threading process, and the thread between the two stitches is elongated by the extension frame. The position of the extension frame can be adjusted by the adjusting plate, thereby adjusting the length of the thread between the two stitches, so that the stitches are loose when sewing the label, facilitating the subsequent cutting of the label, and having high work efficiency and saving manpower.

[0005] Preferably, the head of the adjusting plate is provided with an L-shaped baffle abutting against the head of the connecting seat, the tail of the extension frame is connected to the front part of the L-shaped baffle through a screwing piece, and the tail of the adjusting plate is provided with an adjusting handle. The L-shaped baffle can increase the stability of the connection between the adjusting plate and the connecting seat. The extension frame will be deformed under the long-time stretching action of the thread, and can be replaced by loosening and tightening the screwing piece, which is convenient for disassembly and replacement. The adjusting handle is convenient for adjusting the adjusting plate.

[0006] Preferably, the adjusting plate is connected to the top of the connecting seat by an adjusting bolt, and the L-shaped baffle is connected to the top of the connecting seat by a clamping bolt.

[0007] Preferably, a support seat is arranged on the front end of the connecting seat and is in contact with the extension frame, the support seat comprises an inclined surface seat connected to the front end of the connecting seat and a boss seat arranged at the bottom of the inclined surface seat.

[0008] Preferably, the extension frame comprises a U-shaped rod connected to the front of the L-shaped baffle by a screwing member, an inclined rod arranged at one end of the U-shaped rod and in contact with the inclined surface seat, a bent rod arranged at the end of the inclined rod and in contact with the boss seat, and an extension rod arranged at the end of the bent rod and located below the needle.

[0009] Preferably, the extension rod is arranged in parallel with the needle plate.

[0010] Preferably, the L-shaped baffle and the adjusting plate are integrally manufactured.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The sewing machine presser foot mechanism for label sewing has the advantages that when sewing a label, the needle passes through the extension frame of the presser foot extension assembly during the threading process, the thread between the two needle feet is lengthened by the extension frame, the position of the extension frame can be adjusted by the adjusting plate, the length of the thread between the two needle feet is adjusted, the needle is loose during sewing, the subsequent label can be easily cut off, the work efficiency is high, and manpower is saved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model;

[0014] Fig. 2 It is a structural schematic view of the presser foot extension assembly and the presser foot assembly in the utility model;

[0015] Fig. 3 It is a structural schematic view of the presser foot extension assembly in the utility model;

[0016] In the diagram: 1. Base; 2. Needle plate; 3. Presser foot; 4. Machine head; 5. Needle; 6. Connecting seat; 7. Presser foot extension assembly; 71. Adjusting plate; 72. L-shaped baffle; 73. Extension frame; 731. U-shaped rod; 732. Diagonal rod; 733. Bending rod; 734. Extension rod; 74. Tightening component; 75. Adjusting bolt; 76. Tightening bolt; 77. Adjusting handle; 8. Support seat; 81. Inclined seat; 82. Boss seat. Detailed Implementation

[0017] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] like Figs. 1 to 3 As shown, a sewing machine presser foot mechanism for label sewing includes a base 1, a needle plate 2 mounted on the base 1, a presser foot 3 mounted on the base 1 corresponding to the needle plate 2, a sewing head 4 mounted above the base 1, and needles 5 mounted on the sewing head 4 corresponding to the presser foot 3 and the needle plate 2. The presser foot 3 has a connecting seat 6 at its tail end, and a presser foot extension assembly 7 is mounted on the connecting seat 6. The presser foot extension assembly 7 includes an adjusting plate 71 mounted on the connecting seat 6 and an extension frame 73 at the front end of the adjusting plate 71. The head of the extension frame 73 is offset from directly below the needle 5. When sewing labels, the needle 5 passes through the extension frame 73 of the presser foot extension assembly 7 during the stitching process. The thread between the two needles is lengthened by the extension frame 73. The adjusting plate 71 can adjust the position of the extension frame 73, thereby adjusting the length of the thread between the two needles, making the stitches looser during label sewing, facilitating subsequent label cutting, and improving work efficiency and saving manpower.

[0020] The head of the adjusting plate 71 is provided with an L-shaped baffle 72 that engages with the head of the connecting seat 6. The tail of the extension frame 73 is connected to the front of the L-shaped baffle 72 via a tightening member 74. The tail of the adjusting plate 71 is provided with an adjusting handle 77. The L-shaped baffle 72 can increase the stability of the connection between the adjusting plate 71 and the connecting seat 6; the extension frame 73 will deform under the long-term tension of the line, which can be easily replaced by loosening the tightening member 74; the adjusting handle 77 facilitates the adjustment of the adjusting plate 71.

[0021] The adjusting plate 71 is connected to the top of the connecting seat 6 by adjusting bolts 75, and the L-shaped baffle 72 is connected to the top of the connecting seat 6 by tightening bolts 76. The adjusting bolts 75 can adjust the rotation position of the adjusting plate 71, and then the tightening bolts 76 tighten the L-shaped baffle 72 to the connecting seat 6, so that the adjusting plate 71 and the L-shaped baffle 72 are fixed in position on the connecting seat 6 and are not prone to displacement, thereby realizing the position adjustment and positioning of the extension frame 73.

[0022] The front end of the connecting seat 6 is located at the center of the presser foot 3 and has a support seat 8 that fits against the extension frame 73. The support seat 8 includes an inclined seat 81 connected to the front end of the connecting seat 6 and a boss seat 82 located at the bottom of the inclined seat 81. The support seat 8 can support the extension frame 73 and prevent deformation, thus extending the service life of the extension frame 73; the structure of the inclined seat 81 and the boss seat 82 provides stable support.

[0023] The extension frame 73 includes a U-shaped rod 731 connected to the front of the L-shaped baffle 72 via a tightening member 74, an inclined rod 732 at one end of the U-shaped rod 731 that fits against the inclined seat 81, a bent rod 733 at the end of the inclined rod 732 that fits against the boss seat 82, and an extension rod 734 at the end of the bent rod 733. The extension rod 734 is offset from directly below the needle 5. The U-shaped rod 731 facilitates the connection of the tightening member 74; the inclined rod 732 and the bent rod 733, which fit against the support seat 8, ensure the support effect; the extension rod 734 is used to lengthen the thread between the two needle feet and has elasticity. During operation, as the needle 5 moves up and down, the extension rod 734 elastically returns to its original position, achieving thread blocking and thus lengthening the thread between the two needle feet.

[0024] The extension rod 734 is arranged parallel to the needle plate 2. This avoids collisions with other components and ensures consistent thread length between the two needles. The extension frame 73 is made of a single flexible steel wire, which is easy to manufacture, has good elasticity, and a long service life. The L-shaped baffle 72 and the adjusting plate 71 are integrally manufactured, resulting in high strength and a long service life.

[0025] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A sewing machine presser foot mechanism for label sewing, characterized in that: The device includes a base (1), a needle plate (2) on the base (1), a presser foot (3) on the base (1) corresponding to the needle plate (2), a machine head (4) above the base (1), and a needle (5) on the machine head (4) corresponding to the presser foot (3) and the needle plate (2). The presser foot (3) has a connecting seat (6) at its tail. The connecting seat (6) has a presser foot extension assembly (7). The presser foot extension assembly (7) includes an adjustment plate (71) on the connecting seat (6) and an extension frame (73) at the front end of the adjustment plate (71). The head of the extension frame (73) is offset from the needle (5) directly below it.

2. The sewing machine presser foot mechanism for label sewing according to claim 1, characterized in that: The head of the adjusting plate (71) is provided with an L-shaped baffle (72) that engages with the head of the connecting seat (6). The tail of the extension frame (73) is connected to the front of the L-shaped baffle (72) by a tightening member (74). The tail of the adjusting plate (71) is provided with an adjusting handle (77).

3. The sewing machine presser foot mechanism for label sewing according to claim 2, characterized in that: The adjusting plate (71) is connected to the top of the connecting seat (6) by adjusting bolts (75), and the L-shaped baffle (72) is connected to the top of the connecting seat (6) by tightening bolts (76).

4. The sewing machine presser foot mechanism for label sewing according to claim 2, characterized in that: The front end of the connecting seat (6) is located at the center of the presser foot (3) and is provided with a support seat (8) that fits against the extension frame (73). The support seat (8) includes an inclined seat (81) connected to the front end of the connecting seat (6) and a boss seat (82) provided at the bottom of the inclined seat (81).

5. The sewing machine presser foot mechanism for label sewing according to claim 4, characterized in that: The extension frame (73) includes a U-shaped rod (731) connected to the front of the L-shaped baffle (72) by a tightening member (74), an inclined rod (732) attached to the inclined seat (81) at one end of the U-shaped rod (731), a bent rod (733) attached to the boss seat (82) at the end of the inclined rod (732), and an extension rod (734) attached to the end of the bent rod (733). The extension rod (734) is offset from the needle (5) directly below it.

6. The sewing machine presser foot mechanism for label sewing according to claim 5, characterized in that: The extension rod (734) is arranged parallel to the needle plate (2).

7. The sewing machine presser foot mechanism for label sewing according to claim 2, characterized in that: The L-shaped baffle (72) and the adjusting plate (71) are manufactured as a single unit.

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