Sewing machine presser foot

Abstract

The utility model discloses a sewing machine presser foot, which belongs to the technical field of sewing machines and comprises a foot seat and a foot plate, a stress plate is movably arranged in the foot plate, a first penetrating opening is formed in the stress plate, a second penetrating opening is formed in the position, corresponding to the first penetrating opening, of the foot plate, and an attraction part is fixedly mounted on the edge of the second penetrating opening. A control piece for controlling the attraction piece is arranged in the foot plate, and the stress plate is used for making contact with the control piece. According to the sewing machine presser foot, after a sewing needle is broken, the electromagnet can be powered on and attracts the broken needle, and the broken needle can be conveniently found in the follow-up process.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, and more specifically, to a presser foot for sewing machines. Background Art

[0002] The presser foot of a sewing machine is used to apply pressure to the fabric being sewn, so that it fits tightly against the bottom of the sewing opening, ensuring that the fabric moves smoothly during sewing, thereby increasing the quality and effect of sewing.

[0003] The utility model Chinese patent with announcement number CN210856556U introduces a presser foot device for a sewing machine with easy-to-find broken needles, which includes a presser foot body and a protective assembly. The presser foot body includes a horizontally arranged presser foot plate and a presser foot support rod; the protective assembly includes a first protective plate, a second protective plate, a third protective plate and a fourth protective plate, the first protective plate and the second protective plate are respectively arranged on both sides of the presser foot plate, the third protective plate is fixedly connected to the presser foot support rod, and the third protective plate is connected to both the first protective plate and the second protective plate, the fourth protective plate is arranged above the presser foot plate and is connected to the first protective plate and the second protective plate; the fourth protective plate is provided with a first needle drop hole, the presser foot plate is provided with a second needle drop hole, and the first needle drop hole and the second needle drop hole are arranged opposite to each other up and down.

[0004] The problem solved in the above scheme is that by setting a protective component, it is easy to find the broken needle, which can greatly improve the efficiency of retrieving the broken needle and reduce the safety hazard of the broken needle flying onto the clothing; the operation is simple.

[0005] This application provides another technical solution to this technical problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a sewing machine presser foot.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A sewing machine presser foot comprises a foot base and a foot plate, wherein a force-bearing plate is movably arranged in the foot plate, the force-bearing plate is provided with a first through-hole, and a second through-hole is provided in the foot plate corresponding to the first through-hole, an attracting member is fixedly installed on the edge of the second through-hole, a control member for controlling the attracting member is arranged in the foot plate, and the force-bearing plate is used to contact the control member.

[0009] The utility model is further configured as follows: the foot plate and the force-bearing plate are connected via a reset member, a plurality of the reset members are provided, and the plurality of the reset members are arranged in a ring-shaped manner with the through opening 1 as the center.

[0010] The utility model is further configured as follows: the reset member comprises a rubber column, two ends of the rubber column respectively penetrate the force-bearing plate and the foot seat, and the rubber column is fixedly connected to the force-bearing plate and the foot seat.

[0011] The utility model is further configured as follows: an annular convexity is formed on the edge of the force-bearing plate corresponding to the inner side of the foot plate; the control component comprises a contact piece 1 and a contact piece 2; the contact piece 1 is fixedly mounted on the side wall of the force-bearing plate; the contact piece 2 is fixedly mounted on the side wall of the annular convexity; and the contact piece 1 and the contact piece 2 are in contact with each other.

[0012] The utility model is further configured as follows: the attraction member comprises an electromagnet, and the attraction surface of the electromagnet faces the center of the second through-hole.

[0013] The utility model is further configured as follows: a plurality of electromagnets are provided, and the plurality of electromagnets are arranged at intervals.

[0014] In summary, the utility model has the following beneficial effects:

[0015] When a sewing needle breaks, the broken needle that is not fixed will fly around. When the broken needle hits the force-bearing plate, the force-bearing plate overcomes the elastic force of the rubber column and moves relative to the foot plate, causing contact piece 1 and contact piece 2 to contact each other. The circuit is turned on and the electromagnet is energized, exerting a magnetic attraction near the hole one, attracting the broken needle that is not fixed to the electromagnet, making it easier to find the broken needle later. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure inside the footboard of the utility model.

[0018] In the figure: 1. foot seat; 2. foot plate; 3. second hole; 4. force plate; 5. first hole; 6. rubber column; 7. first contact piece; 8. annular protrusion; 9. second contact piece; 10. electromagnet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments.

[0020] like Figure 1 As shown, the present application provides a sewing machine presser foot, including a foot base 1 and a foot plate 2, the foot base 1 and the foot plate 2 are fixedly connected, the foot plate 2 is provided with a through opening 2 3, when sewing, the sewing needle will pass through the through opening 2 3, through the foot plate 2 and contact the fabric.

[0021] like Figure 2 As shown, an installation space is formed in the foot plate 2, and the installation space is connected with the through-hole 2 3, wherein the installation space in the foot plate 2 is provided with a force-bearing plate 4, and the force-bearing plate 4 is provided with a through-hole 1 5, and the force-bearing hole 1 corresponds to the force-bearing hole 2. In this embodiment, the size of the through-hole 1 5 is smaller than the through-hole 1 5, and when the sewing needle passes through the through-hole 2 3, the sewing needle will pass through the through-hole 1 5 together, and the foot plate 2 and the force-bearing plate 4 are connected by a reset member, and a plurality of reset members are provided, and the plurality of reset members are arranged in a ring-shaped interval with the through-hole 1 5 as the center, and the reset member includes a rubber column 6, and the two ends of the rubber column 6 respectively pass through the force-bearing plate 4 and the foot seat 1, and the rubber column 6 is fixedly connected to the force-bearing plate 4 and the foot seat 1, and due to the support of the rubber column 6, in the initial state, the force-bearing plate 4 will not directly contact the side wall of the installation space, but can be deformed by applying force to the force-bearing plate 4, thereby causing relative movement between the force-bearing plate 4 and the foot plate 2.

[0022] like Figure 2 As shown, an annular protrusion 8 is formed on the edge of the force-bearing plate 4 corresponding to the foot plate 2, and a control component is arranged in the foot plate 2, which includes a contact piece 1 7 and a contact piece 2 9. The contact piece 1 7 is fixedly mounted on the side wall of the force-bearing plate 4, and the contact piece 2 9 is fixedly mounted on the side wall of the annular protrusion 8. When relative movement occurs between the force-bearing plate 4 and the foot plate 2, the contact piece 1 7 and the contact piece 2 9 can be brought into contact with each other. In this embodiment, the contact piece 1 7 and the contact piece 2 9 are respectively connected to the circuit control module unit through wires. When the contact piece 1 7 and the contact piece 2 9 are connected, a loop is formed. The foot plate 2 is installed with a circuit control module unit, and the circuit control module unit will receive a signal. When the sewing needle breaks, the broken needle that is not fixed will fly around. When the broken needle hits the force-bearing plate 4, the force-bearing plate 4 overcomes the elastic force of the rubber column 6 and moves relative to the foot plate 2, and the contact piece 1 7 and the contact piece 2 9 are brought into contact with each other. The circuit control module unit will judge that the needle is broken based on the received signal and stop the sewing machine.

[0023] like Figure 2As shown, an attraction member is fixedly installed on the edge of the hole 3, and the attraction member includes an electromagnet 10. The electromagnet 10 is connected to the circuit control module unit through wires. The attraction surface of the electromagnet 10 faces the center of the hole 3. There are a number of electromagnets 10, and the electromagnets 10 are arranged at intervals. When the circuit control module unit receives a signal, the electromagnet 10 will be energized to apply a magnetic attraction force to the vicinity of the hole 5, and the broken needle that is not fixed will be attracted to the electromagnet 10, so as to facilitate the subsequent search for the broken needle.

[0024] In summary, in the presser foot provided in this embodiment, after the sewing needle breaks, the electromagnet 10 will be energized and attract the broken needle, making it easier to find the broken needle later.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A sewing machine presser foot, comprising a foot base and a foot plate, characterized in that: A movably arranged force-bearing plate is arranged in the foot plate, the force-bearing plate is provided with a first hole, a second hole is arranged in the foot plate corresponding to the first hole, an attraction member is fixedly installed on the edge of the second hole, a control member for controlling the attraction member is arranged in the foot plate, and the force-bearing plate is used to contact the control member.

2. A sewing machine presser foot according to claim 1, characterized in that: The foot plate and the force-bearing plate are connected via a reset member, and a plurality of reset members are provided. The reset members are arranged in a ring-shaped manner with the through hole 1 as the center.

3. A sewing machine presser foot according to claim 2, characterized in that: The resetting member comprises a rubber column, two ends of which penetrate the force-bearing plate and the foot seat respectively, and the rubber column is fixedly connected to the force-bearing plate and the foot seat.

4. A sewing machine presser foot according to claim 2, characterized in that: An annular bulge is formed on the edge of the force-bearing plate in the foot plate, and the control component includes contact piece 1 and contact piece 2. Contact piece 1 is fixedly mounted on the side wall of the force-bearing plate, and contact piece 2 is fixedly mounted on the side wall of the annular bulge. Contact piece 1 and contact piece 2 are in contact with each other.

5. The sewing machine presser foot according to claim 1, characterized in that: The attraction member comprises an electromagnet, and the attraction surface of the electromagnet faces the center of the second hole.

6. A sewing machine presser foot according to claim 5, characterized in that: A plurality of the electromagnets are provided, and the electromagnets are arranged at intervals.

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