Presser foot tool for felt sewing

Abstract

The utility model discloses a presser foot tool for felt sewing, which relates to the field of sewing machine accessories and comprises a sewing machine connecting block, a sewing machine connecting groove is arranged at the top end of the sewing machine connecting block, a U-shaped block is arranged at the bottom end of the sewing machine connecting block, and a presser foot seat is arranged at the bottom of the U-shaped block. A detachable fixing rod penetrating through the side walls of the two ends of the presser foot base is arranged on one side of the U-shaped block, an adjusting assembly is arranged in one side of the presser foot base, and presser foot plates are symmetrically arranged at the two ends of one side of the adjusting assembly. The device is reasonable and reliable in structure and easy to operate, the distance between the presser foot plates can be adjusted according to the thickness requirement of the sewing felt under the action of the adjusting assembly, the problem that the sewing felt is excessively pressed due to the fact that the distance between the presser foot plates is too small, the felt is prevented from smoothly moving under the sewing machine, and the sewing quality is improved is solved. According to the presser foot tool for felt sewing, the phenomena that cloth is easily clamped or a needle thread is pulled in the sewing process, and sewing efficiency is affected are avoided, so that the presser foot efficiency of the presser foot tool for felt sewing is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine accessories, specifically to a presser foot fixture for felt sewing. Background Technology

[0002] In felt sewing, the presser foot plays a crucial role in improving sewing quality and efficiency. Felt, being a thick and soft material, is prone to slippage and wrinkling during sewing. Therefore, the design and use of the presser foot mechanism are particularly important when sewing felt. The presser foot, by properly pressing the felt surface, ensures the fabric passes smoothly through the sewing machine and maintains consistent and aesthetically pleasing stitches. However, existing presser foot fixtures for felt sewing require adjustment of the presser foot spacing due to varying felt thicknesses. If the spacing is too small, the felt may be over-pressed, hindering its smooth movement under the sewing machine, potentially causing fabric jamming or thread pulling during sewing, thus affecting sewing efficiency.

[0003] For example, Chinese patent CN219731272U discloses a presser foot mechanism for sewing suits, including a connector. The connector has connecting structures on both sides for mounting the presser foot mechanism onto a sewing device. The connecting structures include grooves, clamping plates, fixing blocks, support plates, bolt holes, and detachable bolts. Grooves for clamping plate connection are opened on both sides of the connector, and clamping plates are clamped inside the grooves. A fixing block is fixedly connected to one end of the clamping plate, and a support plate for fixing the presser foot mechanism is welded to the top of the fixing block.

[0004] This presser foot mechanism has the following drawbacks: Although it is designed with components such as connectors, arc-shaped mounting slots, grooves, clamping plates, fixing blocks, support plates, bolt holes, and detachable bolts to facilitate installation on the sewing machine and improve installation efficiency, the thickness of the sewing material varies. Therefore, the spacing between the presser foot plates needs to be adjusted for optimal presser foot operation. If the spacing is too small, the sewing material will be excessively compressed, hindering its smooth movement under the sewing machine. This can easily lead to fabric jamming or thread pulling during sewing, affecting sewing efficiency.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a presser foot tool for felt sewing to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A presser foot fixture for felt sewing includes a sewing machine connecting block, a sewing machine connecting groove at the top of the sewing machine connecting block, a U-shaped block at the bottom of the sewing machine connecting block, a presser foot seat at the bottom of the U-shaped block, a detachable fixing rod penetrating the side walls of both ends of the presser foot seat on one side of the U-shaped block, an adjusting component inside one side of the presser foot seat, presser foot plates symmetrically arranged at both ends on one side of the adjusting component, and a limit component on one side of the adjusting component.

[0009] Furthermore, to allow adjustment of the spacing between presser feet according to the required thickness of the felt being sewn, the adjusting component prevents the presser feet from being too close together, which could lead to excessive compression of the felt, hindering its smooth movement under the sewing machine, causing fabric jamming or thread pulling during sewing, and affecting sewing efficiency. This improves the presser foot efficiency of the felt sewing presser foot fixture. The adjusting component includes a housing located inside one side of the presser foot base, with a knob extending through one side of the housing. The output end of the knob is connected to... The gear has a rack 1 that meshes with the gear at the top inner end of the housing, and a rack 2 that meshes with the gear at the bottom inner end of the housing. One end of the rack 1 has a moving rod 1 that penetrates the side wall of the housing, and one end of the rack 2 has a moving rod 2 that penetrates the side wall of the housing. A groove 1 that mates with the moving rod 1 is opened at the bottom of one side wall of the housing, and a groove 2 that mates with the moving rod 2 is opened at the top of one side wall of the housing. The bottom of one side of the moving rod 1 and one side of the moving rod 2 are both connected to the pressure foot plate. A scale strip that mates with the pressure foot plate is set at the top of one side of the housing.

[0010] Furthermore, to ensure the knob is fixed in place by the limiting component, preventing displacement of the presser foot plate during operation after the presser foot plate spacing adjustment, thus improving the stability of the presser foot fixture for felt sewing, the limiting component includes an arc-shaped retaining ring on the outer circumference of the knob. A fixed base is located at the top of the arc-shaped retaining ring, and a fixing rod is located on one side of the bottom of the fixed base. A slot is formed in the middle of one side of the fixed base, and a fixing plate is fitted onto one side of the slot. Rotating holes that mate with the fixing rod are formed at both ends of the bottom of the fixing plate. A limiting groove is formed in the middle of one side of the fixing plate, and a threaded hole is formed inside the slot. A tightening component that mates with the threaded hole is located inside the limiting groove. The tightening component includes a fastening plate on one side of the fixing plate, a tightening block on one side of the fastening plate, and a threaded rod that mates with the threaded hole on the other side of the fastening plate. A locking post is located on one side of the top of the fixing plate, and several limiting holes that mate with the locking post are formed on one side wall of the housing.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model has a reasonable and reliable structure and is easy to operate. Under the action of the adjustment component, the distance between the presser feet can be adjusted according to the thickness requirements of the felt being sewn. This avoids the presser feet being too close together, which would cause the felt to be over-pressed, hindering the smooth movement of the felt under the sewing machine, and making it easy for the fabric to jam or the needle and thread to be pulled during the sewing process, thus affecting the sewing efficiency. This improves the presser foot efficiency of the felt sewing presser foot fixture. At the same time, under the action of the limiting component, the knob can be fixed, preventing the presser feet from shifting due to the rotation of the knob after the presser foot distance is adjusted, thereby improving the stability of the felt sewing presser foot fixture.

[0013] 2. By setting up an adjustment component, when it is necessary to adjust the spacing between the presser feet according to the felt thickness, turning the knob causes the output shaft of the knob to drive the gear to rotate. Under the rotation of the gear, rack one and rack two move in opposite directions. Thus, under the action of rack one and rack two, moving rod one and moving rod two move within slide groove one and slide groove two. Then, moving rod one and moving rod two move the two presser feet. The position of the scale strips corresponding to the two presser feet is observed and recorded, which facilitates precise adjustment of the presser foot spacing and also facilitates the next use. This allows for adjustment of the spacing between the presser feet, thereby improving the presser foot efficiency of this felt sewing presser foot fixture and making it more widely applicable.

[0014] 3. By using the limiting component, when the knob needs to be fixed, turn the screwing block clockwise by hand. Under the action of the threaded hole and threaded rod, the fastening plate will rotate closer to the fixing plate. When one side of the fastening plate contacts the other side of the fixing plate, the fixing plate will press against the slot under the action of the fixing rod and the rotating hole. When the locking pin is inserted into the limiting hole, the knob can be fixed. When the knob needs to be loosened, turn the screwing block counterclockwise by hand. Under the action of the threaded hole and threaded rod, the fastening plate will rotate away from the fixing plate. When one side of the fastening plate leaves the other side of the fixing plate, the fixing plate will leave the slot under the action of the fixing rod and the rotating hole. When the locking pin leaves the limiting hole, the knob can be loosened, thereby improving the stability of the presser foot fixture for felt sewing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a perspective view of a presser foot fixture for felt sewing according to an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the adjusting component in a presser foot tool for felt sewing according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of an adjusting component in a presser foot fixture for felt sewing according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the limiting component in a presser foot tool for felt sewing according to an embodiment of the present utility model;

[0021] Figure 6 This is a cross-sectional view of a limiting component in a presser foot fixture for felt sewing according to an embodiment of the present utility model;

[0022] Figure 7 This is a three-dimensional assembly drawing of a limiting component in a presser foot fixture for felt sewing according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Sewing machine connecting block; 2. Sewing machine connecting groove; 3. U-shaped block; 4. Presser foot base; 5. Detachable fixing rod; 6. Adjustment component; 601. Housing; 602. Knob; 603. Gear; 604. Rack 1; 605. Rack 2; 606. Moving rod 1; 607. Moving rod 2; 608. Slide groove 1; 609. Slide groove 2; 6010. Scale bar; 7. Presser foot plate; 8. Limiting component; 801. Arc-shaped retaining ring; 802. Fixed base; 803. Fixing rod; 804. Slot; 805. Fixing plate; 806. Rotary hole; 807. Limiting groove; 808. Threaded hole; 809. Tightening component; 8010. Fastening plate; 8011. Tightening block; 8012. Threaded rod; 8013. Locking post; 8014. Limiting hole. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a presser foot fixture for felt sewing is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the presser foot fixture for felt sewing according to an embodiment of the present utility model includes a sewing machine connecting block 1. In specific applications, bolt holes are provided on both side walls of the sewing machine connecting block 1, and it is fixedly installed with the sewing machine by bolts. A sewing machine connecting groove 2 is provided at the top of the sewing machine connecting block 1, and a U-shaped block 3 is provided at the bottom of the sewing machine connecting block 1. A presser foot seat 4 is provided at the bottom of the U-shaped block 3. A detachable fixing rod 5 is provided on one side of the U-shaped block 3, penetrating through both side walls of the presser foot seat 4. An adjustment component 6 is provided inside one side of the presser foot seat 4. Presser foot plates 7 are symmetrically arranged at both ends on one side of the adjustment component 6. A limit component 8 is provided on one side of the adjustment component 6.

[0028] In addition, the sewing machine connecting block 1, sewing machine connecting groove 2, presser foot seat 4, detachable fixing rod 5, bolts, presser foot plate 7, and the working principle and structure of the sewing machine are all existing technologies, and will not be elaborated on here.

[0029] In one embodiment, the adjustment assembly 6 includes a housing 601 disposed inside one side of the pressure foot seat 4. A knob 602 is disposed through one side of the housing 601. The output end of the knob 602 is connected to a gear 603. A rack 604 meshing with the gear 603 is disposed at the top inner end of the housing 601. A rack 605 meshing with the gear 603 is disposed at the bottom inner end of the housing 601. A moving rod 606 penetrating the side wall of the housing 601 is disposed at one end of the rack 604. A moving rod 607 penetrating the side wall of the housing 601 is disposed at one end of the rack 605. A groove cooperating with the moving rod 606 is provided at the bottom of one side wall of the housing 601. 608. A groove 609 is provided on the top of one side wall of the housing 601 to cooperate with the second moving rod 607. The bottom of one side of the first moving rod 606 and one side of the second moving rod 607 are connected to the presser foot plate 7. A scale strip 6010 is provided on the top of one side of the housing 601 to cooperate with the presser foot plate 7. Under the action of the adjustment component 6, the distance between the presser foot plates 7 can be adjusted according to the thickness of the sewing felt. This avoids the presser foot plates 7 being too close, which would cause the sewing felt to be over-pressed, hindering the smooth movement of the felt under the sewing machine. This would easily cause the fabric to jam or the needle and thread to be pulled during the sewing process, affecting the sewing efficiency. This improves the presser foot efficiency of the presser foot fixture for felt sewing.

[0030] The specific working principle of the adjustment component 6 is as follows: When it is necessary to adjust the spacing between the presser feet 7 according to the thickness of the felt, the knob 602 is turned, causing the output shaft of the knob 602 to drive the gear 603 to rotate. Under the rotation of the gear 603, the rack 1 604 and rack 2 605 move in opposite directions. Under the action of the rack 1 604 and rack 2 605, the moving rod 1 606 and moving rod 2 607 move within the slide groove 1 608 and slide groove 2 609. Then, the moving rod 1 606 and moving rod 2 607 drive the two presser feet 7 to move. The position of the scale bar 6010 corresponding to the two presser feet 7 is observed and recorded, which facilitates precise adjustment of the spacing between the presser feet 7 and also facilitates the next use. Thus, the spacing between the presser feet 7 can be adjusted, thereby improving the presser foot efficiency of this felt sewing presser foot fixture and making it more applicable.

[0031] In one embodiment, the limiting component 8 includes an arc-shaped retaining ring 801 disposed on the outer circumference of the knob 602. A fixed base 802 is disposed at the top of the arc-shaped retaining ring 801. A fixing rod 803 is disposed on one side of the bottom of the fixed base 802. A slot 804 is formed in the middle of one side of the fixed base 802. A fixing plate 805 is disposed on one side of the slot 804. Rotating holes 806 that mate with the fixing rod 803 are formed at both ends of the bottom of the fixing plate 805. A limiting groove 807 is formed in the middle of one side of the fixing plate 805. A threaded hole 808 is formed inside the slot 804. A turning element 80 that mates with the threaded hole 808 is disposed inside the limiting groove 807. 9. The tightening component 809 includes a fastening plate 8010 disposed on one side of the fixed plate 805. A tightening block 8011 is disposed on one side of the fastening plate 8010, and a threaded rod 8012 that mates with the threaded hole 808 is disposed on the other side of the fastening plate 8010. A locking post 8013 is disposed on one side of the top of the fixed plate 805. Several limiting holes 8014 that mate with the locking post 8013 are opened on one side wall of the housing 601, so that the knob 602 can be fixed under the action of the limiting component 8, so as to prevent the knob 602 from rotating and causing the presser foot 7 to move during operation after the presser foot plate 7 spacing is adjusted, thereby improving the stability of the presser foot fixture for felt sewing.

[0032] The specific working principle of the limiting component 8 is as follows: When it is necessary to fix the knob 602, rotate the screw block 8011 clockwise by hand. Under the action of the threaded hole 808 and the threaded rod 8012, the fastening plate 8010 is driven to rotate towards the side of the fixing plate 805. When one side of the fastening plate 8010 contacts one side of the fixing plate 805, the fixing plate 805, under the action of the fixing rod 803 and the rotating hole 806, presses against the slot 804. When the locking pin 8013 is inserted into the limiting hole 8014, the knob 602 can be fixed. When it is necessary to loosen the knob 602, turn the screw block 8011 counterclockwise by hand. Under the action of the threaded hole 808 and the threaded rod 8012, the fastening plate 8010 will rotate away from the fixed plate 805. When one side of the fastening plate 8010 moves away from the side of the fixed plate 805, the fixed plate 805 will move away from the slot 804 under the action of the fixed rod 803 and the rotating hole 806. When the locking post 8013 moves away from the limiting hole 8014, the knob 602 can be loosened, thereby improving the stability of the presser foot fixture for felt sewing.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0034] In practical applications, when it is necessary to sew felt, the presser foot fixture is aligned with the installation position of the sewing head on the sewing machine via the sewing machine connecting block 1. Then, the sewing machine connecting groove 2 is aligned with the installation position on the sewing device. The sewing machine connecting block 1 is fixed to the sewing machine by inserting bolts into the bolt holes. The felt is then placed under the presser foot fixture, and the felt is sewn using the sewing machine. When it is necessary to adjust the spacing of the presser foot plates 7, the spacing between the presser foot plates 7 can be adjusted by turning the adjusting component 6. After adjustment, the knob 602 is fixed by the limiting component 8 to prevent the knob 602 from rotating and causing the presser foot plates 7 to shift during the sewing process, thereby improving the presser foot efficiency of the felt sewing presser foot fixture.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A presser foot fixture for felt sewing, comprising a sewing machine connecting block (1), characterized in that, The sewing machine connecting block (1) has a sewing machine connecting groove (2) at its top end, a U-shaped block (3) at its bottom end, a presser foot seat (4) at the bottom of the U-shaped block (3), a detachable fixing rod (5) penetrating the side walls of both ends of the presser foot seat (4) on one side of the U-shaped block (3), an adjustment component (6) inside one side of the presser foot seat (4), presser foot plates (7) symmetrically arranged at both ends of one side of the adjustment component (6), and a limit component (8) on one side of the adjustment component (6).

2. The presser foot fixture for felt sewing according to claim 1, characterized in that, The adjustment assembly (6) includes a housing (601) disposed inside one side of the pressure foot seat (4). A knob (602) is disposed through one side of the housing (601). A gear (603) is connected to the output end of the knob (602). A rack (604) meshing with the gear (603) is disposed at the top inner end of the housing (601). A rack (605) meshing with the gear (603) is disposed at the bottom inner end of the housing (601).

3. The presser foot fixture for felt sewing according to claim 2, characterized in that, One end of the rack (604) is provided with a movable rod (606) that penetrates the side wall of the housing (601), and one end of the rack (605) is provided with a movable rod (607) that penetrates the side wall of the housing (601). A sliding groove (608) that cooperates with the movable rod (606) is provided at the bottom of one side wall of the housing (601), and a sliding groove (609) that cooperates with the movable rod (607) is provided at the top of one side wall of the housing (601).

4. The presser foot fixture for felt sewing according to claim 3, characterized in that, The bottom of one side of the first moving rod (606) and one side of the second moving rod (607) are connected to the pressure foot plate (7), and a scale strip (6010) that cooperates with the pressure foot plate (7) is provided on the top side of one side of the housing (601).

5. The presser foot fixture for felt sewing according to claim 4, characterized in that, The limiting component (8) includes an arc-shaped retaining ring (801) disposed on the outer circumference of the knob (602). A fixed base (802) is disposed on the top of the arc-shaped retaining ring (801). A fixing rod (803) is disposed on one side of the bottom of the fixed base (802). A slot (804) is opened in the middle of one side of the fixed base (802). A fixing plate (805) is disposed on one side of the slot (804).

6. The presser foot fixture for felt sewing according to claim 5, characterized in that, The bottom ends of the fixing plate (805) are provided with rotating holes (806) that cooperate with the fixing rod (803). A limiting groove (807) is provided in the middle of one side of the fixing plate (805). A threaded hole (808) is provided inside the groove (804). A screwing member (809) that cooperates with the threaded hole (808) is provided inside the limiting groove (807).

7. A presser foot fixture for felt sewing according to claim 6, characterized in that, The screwing component (809) includes a fastening plate (8010) disposed on one side of the fixed plate (805), a screwing block (8011) disposed on one side of the fastening plate (8010), a threaded rod (8012) that mates with the threaded hole (808) disposed on the other side of the fastening plate (8010), a locking post (8013) disposed on one side of the top of the fixed plate (805), and a plurality of limiting holes (8014) that mate with the locking post (8013) opened on one side wall of the housing (601).

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