CN214938299U

CN214938299U - Movable presser foot of sewing machine

Info

Publication number: CN214938299U
Application number: CN202121509226.6U
Authority: CN
Inventors: 朱炳义; 陈润江
Original assignee: Hebei Zhiqiang Sewing Equipment Co ltd
Current assignee: Hebei Zhiqiang Sewing Equipment Co ltd
Priority date: 2021-07-03
Filing date: 2021-07-03
Publication date: 2021-11-30
Anticipated expiration: 2031-07-03

Abstract

The utility model relates to the technical field of sewing machine presser feet, in particular to a movable presser foot of a sewing machine; the contact area between the sole pressing plate and the sewing material can be increased, the sewing machine is suitable for sewing the sewing materials with different thicknesses, smooth feeding of the sewing materials is guaranteed, and the sewing effect of the sewing materials is improved; the foot pressing device comprises a foot pressing rod, a foot pressing bottom, a foot pressing handle and a connecting shaft, wherein the foot pressing handle is fixedly arranged at the bottom of the foot pressing rod, the foot pressing bottom is rotatably connected with the foot pressing handle through the connecting shaft, and cylindrical holes are formed in the upper portion and the middle portion of the foot pressing rod.

Description

Movable presser foot of sewing machine

Technical Field

The utility model relates to a technical field of sewing machine presser foot especially relates to a sewing machine activity presser foot.

Background

The sewing machine presser foot is an essential part in a feeding mechanism of the sewing machine, and various types of sewing machine presser feet play an important role in the production process, such as the sewing machine presser foot special for stitching open threads and hidden zippers, the sewing machine presser foot for creasing and the like, and the selection of different sewing machine presser feet in different sewing operations is very important; the existing presser foot of the sewing machine comprises a presser foot swinging rod and a presser foot bottom, wherein the presser foot bottom is fixedly arranged at the bottom of the presser foot swinging rod; the existing presser foot of the sewing machine is discovered in use, the presser foot base is driven by a presser foot swinging rod to do large-radian rotary motion, the bottom plane of the presser foot draws an arc at this time, the contact area with sewing materials cannot be completely or sometimes is large, so that the feeding condition of the sewing machine is influenced, the sewing materials can wrinkle when sewing thin sewing materials, the needle distance (the distance of each sewing needle sewing machine) is reduced due to insufficient pressure when sewing thick sewing materials, and certain use limitation exists.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art's not enough, the utility model provides a can increase presser foot sole and sewing material area of contact adapts to different thickness sewing materials and makes up, guarantees to the smooth pay-off of sewing material, improves the sewing material and makes up the sewing machine activity presser foot of effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the foot pressing device comprises a foot pressing rod, a foot pressing bottom, a foot pressing handle and a connecting shaft, wherein the foot pressing handle is fixedly arranged at the bottom of the foot pressing rod, the foot pressing bottom is rotatably connected with the foot pressing handle through the connecting shaft, and cylindrical holes are formed in the upper portion and the middle portion of the foot pressing rod.

Preferably, the foot pressing device further comprises a spring, embedded grooves are formed in the foot pressing plate and the foot pressing handle, and the bottom and the top of the spring are inserted into the embedded grooves in the foot pressing plate and the foot pressing handle respectively.

Preferably, the bottom of the presser foot bottom is provided with a plurality of groups of uniformly distributed saw-toothed protrusions.

Preferably, the swing presser bar is inserted into the presser foot handle, and the swing presser bar and the presser foot handle are detachably connected through a bolt.

Preferably, the presser foot bottom is provided with an abdicating notch.

(III) advantageous effects

Compared with the prior art, the utility model provides a sewing machine activity presser foot possesses following beneficial effect: the movable presser foot of the sewing machine is arranged on the sewing machine, the swing presser foot rod drives the presser foot bottom to do circular motion around the cylindrical hole on the upper part of the swing presser foot rod, the presser foot bottom is rotatably connected with the presser foot handle through the connecting shaft, the presser foot bottom is always in good contact with a sewing material when rotating in large radian, the contact area between the presser foot bottom and the sewing material is increased, the movable presser foot is suitable for sewing of sewing materials with different thicknesses, the phenomena that wrinkles appear in feeding of thin sewing materials and the stitch length is too small in sewing of thick sewing materials are effectively reduced, smooth feeding of the sewing materials is ensured, and the sewing effect of the sewing materials is improved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a schematic view of the bottom three-dimensional structure of the presser foot handle of the present invention;

fig. 3 is a schematic structural diagram of an embodiment of the present invention;

in the drawings, the reference numbers: 1. a swing presser bar; 2. pressing the sole of the foot; 3. a presser foot handle; 4. a connecting shaft; 5. a cylindrical hole; 6. a groove is embedded; 7. a spring; 8. saw-toothed protrusions; 9. and (5) yielding notches.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the movable presser foot of the sewing machine of the present invention comprises a swing presser foot rod 1, a presser foot bottom 2, a presser foot handle 3 and a connecting shaft 4, wherein the presser foot handle 3 is fixedly mounted at the bottom of the swing presser foot rod 1, the presser foot bottom 2 is rotatably connected with the presser foot handle 3 through the connecting shaft 4, and the upper part and the middle part of the swing presser foot rod 1 are both provided with cylindrical holes 5; the device is installed on a sewing machine, the swing presser foot rod 1 drives the presser foot sole 2 to do circular motion around the cylindrical hole 5 on the upper portion of the swing presser foot rod, the presser foot sole 2 is rotatably connected with the presser foot handle 3 through the connecting shaft 4, the presser foot sole 2 keeps good contact with sewing materials all the time when rotating in large radian, the contact area between the presser foot sole 2 and the sewing materials is increased, the sewing of sewing materials with different thicknesses is adapted, the phenomena that wrinkles appear in feeding of thin sewing materials and the sewing needle distance is too small in feeding of thick sewing materials are effectively reduced, smooth feeding of the sewing materials is guaranteed, and the sewing effect is improved.

The utility model discloses a movable presser foot of sewing machine, still include the spring 7, the bottom of presser foot 2 and the presser foot handle 3 are all provided with embedded groove 6, the bottom and the top of spring 7 insert respectively to the bottom of presser foot 2 and the embedded groove 6 on the presser foot handle 3; when the presser foot bottom 2 is lifted, the left part of the presser foot bottom 2 is tilted under the action of the spring 7, and a V-shaped opening is formed between the presser foot bottom 2 and the operating platform surface of the sewing machine, so that sewing materials can be conveniently fed below the presser foot bottom 2, and the sewing materials can be conveniently fed; a plurality of groups of uniformly distributed saw-tooth-shaped protrusions 8 are arranged at the bottom of the sole pressing part 2; through the arrangement of the sawtooth-shaped bulges 8, the friction force between the sole pressing part 2 and the sewing material can be increased, and the sewing material is prevented from sliding relatively when being conveyed, so that the sewing material is smoothly fed; the swing presser bar 1 is inserted into the presser foot handle 3, and the swing presser bar 1 and the presser foot handle 3 are detachably connected through a bolt; the swing foot sole 2 is inserted into the presser foot handle 3, so that the swing foot sole 2 is in socket joint with the presser foot handle 3, and the swing foot rod 1 and the presser foot handle 3 are connected through bolts, so that the connection stability is enhanced; the foot pressing bottom 2 is provided with a abdicating notch 9; through the setting of the gap 9, the sewing parts on the sewing machine can be abducted, the interference of the presser foot bottom 2 to the sewing parts is avoided, and the smooth operation of sewing is ensured.

When the device is used, the device is arranged on a sewing machine, the swing presser foot rod 1 drives the presser foot sole 2 to do circular motion around the cylindrical hole 5 at the upper part of the swing presser foot rod, the presser foot sole 2 is rotationally connected with the presser foot handle 3 through the connecting shaft 4, the bottom of the presser foot sole 2 is always in good contact with sewing materials while the presser foot sole 2 rotates in a large radian, the contact area between the presser foot sole 2 and the sewing materials is increased, the device is suitable for sewing of sewing materials with different thicknesses, wrinkles during feeding of thin sewing materials and undersized sewing needle distance of thick sewing materials are effectively reduced, smooth feeding of the sewing materials is ensured, and the sewing effect of the sewing materials is improved; when the presser foot sole 2 is lifted, the left part of the presser foot sole 2 is tilted under the action of the spring 7, and a V-shaped opening is formed between the presser foot sole 2 and the operating platform surface of the sewing machine, so that sewing materials can be conveniently fed below the presser foot sole 2, and feeding is convenient; through the arrangement of the sawtooth-shaped bulges 8, the friction force between the sole pressing part 2 and the sewing material can be increased, and the sewing material is prevented from sliding relatively when being conveyed, so that the sewing material is smoothly fed; the swing foot sole 2 is inserted into the presser foot handle 3, so that the swing foot sole 2 is in socket joint with the presser foot handle 3, and the swing foot rod 1 and the presser foot handle 3 are connected through bolts, so that the connection stability is enhanced; through the setting of the gap 9, the sewing parts on the sewing machine can be abducted, the interference of the presser foot bottom 2 to the sewing parts is avoided, and the smooth operation of sewing is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The movable presser foot of the sewing machine is characterized by comprising a swing presser foot rod (1), a presser foot bottom (2), a presser foot handle (3) and a connecting shaft (4), wherein the presser foot handle (3) is fixedly arranged at the bottom of the swing presser foot rod (1), the presser foot bottom (2) is rotatably connected with the presser foot handle (3) through the connecting shaft (4), and cylindrical holes (5) are formed in the upper part and the middle part of the swing presser foot rod (1).

2. The movable presser foot of sewing machine according to claim 1, further comprising a spring (7), wherein the presser foot base (2) and the presser foot handle (3) are provided with embedded grooves (6), and the bottom and the top of the spring (7) are respectively inserted into the embedded grooves (6) on the presser foot base (2) and the presser foot handle (3).

3. A movable presser foot for sewing machines according to claim 2, characterized in that the bottom of said presser foot base (2) is provided with a plurality of groups of uniformly distributed saw-tooth like protrusions (8).

4. A movable presser foot for sewing machines according to claim 3, characterized in that said presser foot swing rod (1) is inserted into the presser foot handle (3), said presser foot swing rod (1) and presser foot handle (3) being detachably connected by means of a bolt.

5. Movable presser foot of a sewing machine according to claim 4, characterized in that said presser foot base (2) is provided with a relief notch (9).