CN218059442U - Floating presser foot structure of sewing machine - Google Patents

Abstract

The utility model discloses a floating presser foot structure of a sewing machine, a presser foot handle is connected with a presser foot rod through a screw, a floating mechanism is arranged at the bottom end of the presser foot rod, a connecting block is arranged at the bottom end of the presser foot rod, the connecting block is connected with a buffer mechanism arranged in a mounting groove of the presser foot handle, and the bottom end of the presser foot handle is connected with the presser foot plate through a fixing mechanism; the floating mechanism is arranged between the presser bar and the presser handle, so that when the thicknesses of the left and right cloth of the presser are inconsistent in the processing process of the cloth with different thicknesses, the presser can move in the movable groove through the floating blocks on the floating mechanism arranged on the left and right sides of the presser bar, compress the spring, adjust the angle of the presser bar and tightly press the processed cloth, thereby preventing the conditions of uneven pressure, wrinkles, skip stitches and the like in the sewing process and influencing the processing efficiency and quality; the fixing mechanism is arranged at the joint of the presser foot handle and the presser foot plate, so that the presser feet with different models and functions can be replaced conveniently in the process of processing cloth, and the processing efficiency and the processing quality of the sewing machine are improved.

Description

Floating presser foot structure of sewing machine

Technical Field

The utility model relates to a clothing manufacture equipment technical field, concretely relates to sewing machine presser foot structure that floats.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a work material to interlace or stitch one or more layers of the work material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The sewing machine is generally composed of four parts, namely a feeding device, a machine base, a transmission part and an accessory part, and is used for sewing up a sewing material by reasonably matching and circulating the motion of each mechanism, wherein a presser foot is an important part in the sewing machine, and when the sewing machine is used for sewing operation, the presser foot is matched with teeth on a feed dog to convey the sewing material forwards and press the sewing material, so that the sewing material is prevented from wrinkling and bulging, and sewing stitches are formed by matching with other mechanisms such as a sewing needle and the like, and the sewing effect is ensured. The presser foot structure in the existing sewing machine is usually that the presser foot is fixed with the presser foot rod through a fixing screw. The floating type presser foot mechanism on the existing computer sewing machine is not convenient enough when the presser foot is installed and disassembled, and the replacement efficiency of the presser foot is influenced when aiming at different sewing materials and different garment technologies; and because the left and right thicknesses of the sewing material are different or the processing errors of some parts such as the presser foot, the feed dog, the needle plate, the machine shell and the like are accumulated, the phenomenon that the tooth crest plane of the feed dog is matched with the presser foot plane of the presser foot is uneven can occur, the pressure of the presser foot on the sewing material is uneven, and under the condition of cloth feeding, the phenomena of stitch deviation and sewing material wrinkling can occur, so that the processing of the clothes and the cloth is influenced.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a floating presser foot structure of a sewing machine.

According to the technical scheme provided by the embodiment of the application, the floating presser foot structure of the sewing machine comprises a presser foot rod and a presser foot handle, wherein the presser foot handle is connected with a through hole in the presser foot rod through a screw, a floating mechanism is arranged at the bottom end of the presser foot rod, a connecting block is arranged at the bottom end of the presser foot rod, the connecting block is connected with a buffer mechanism arranged in a mounting groove of the presser foot handle, and the bottom end of the presser foot handle is connected with a presser foot plate through a fixing mechanism; the presser bar is connected with a piston rod on the sewing machine, the presser bar is connected with the presser handle through a screw, and the floating mechanism is arranged between the presser bar and the presser handle, so that when the thicknesses of the left and right cloth of the presser are inconsistent in the processing process of the cloth with different thicknesses, the presser bar can move in the movable groove through the floating block on the floating mechanism arranged on the left and right of the presser bar, the spring is compressed, the angle of the presser bar is adjusted, the processed cloth is pressed tightly, and the conditions of folds, skip stitches and the like in the sewing process are prevented from occurring, and the processing efficiency and quality are influenced; the presser foot plate is arranged at the bottom end of the presser foot handle, and the fixing mechanism is arranged at the joint of the presser foot handle and the presser foot plate, so that presser feet with different models and functions can be conveniently replaced in the process of processing cloth, and the processing efficiency and the processing quality of the sewing machine are improved.

The floating mechanism comprises two floating blocks and springs, the floating blocks and the springs are arranged in movable grooves on the presser bar, the springs are connected with the presser bar and the floating blocks, the bottom ends of the floating blocks are clamped with a connecting groove A on the presser bar handle, and the two floating mechanisms are respectively arranged on the left side and the right side of the presser bar; the floating mechanism is arranged at the bottom of the presser foot rod, so that when the sewing machine is not consistent in left and right thickness cloth, the floating block on the floating mechanism compresses the spring in the movable groove, the pressure of the presser foot is adjusted, the left and right pressures are consistent, and the situations of wrinkles, needle skipping and the like in the sewing process are prevented.

Buffer gear includes dashpot, buffer block and buffer, and the dashpot setting is in presser foot handle mounting groove bottom, and the buffer block is installed in the dashpot with the bolster, and the bolster is the metal material spring, behind the connecting block and the dashpot joint of presser bar bottom, promotes the buffer block and removes in the dashpot, with bolster metal spring compression, the pressure that the presser bar produced is alleviated to the bolster after the compression, and the use of extension presser bar is the time.

The fixing mechanism comprises a fixing block, a connecting rod A, a restoring piece and a handle, the handle is connected with the connecting rod A, the restoring piece is installed on the connecting rod A, the restoring piece is a metal spring, the fixing block is arranged at the top end of the connecting rod A, and the fixing block is installed in a connecting groove B at the bottom end of the presser foot handle; through set up fixed establishment at presser foot handle bottom, mediate the handle back-and-forth movement through operating personnel, drive the return spring compression of connecting on the connecting rod A, make the fixed block of connecting at connecting rod A top remove, will press the sole to take off from the presser foot handle, change the presser foot board of another model and function, improve sewing machine's machining efficiency and quality.

To sum up, the beneficial effect of this application:

1. the floating mechanism is arranged at the bottom of the presser foot rod, so that when the sewing machine is inconsistent with the left and right thickness cloth, a floating block on the floating mechanism compresses a spring in the movable groove, the pressure of the presser foot is adjusted, the left and right pressures are consistent, and the situations of wrinkles, stitch skipping and the like in the sewing process are prevented;

2. the fixing mechanism is arranged at the bottom end of the presser foot handle, the back-and-forth movement of the handle is mediated by an operator, the return piece spring connected to the connecting rod A is driven to compress, the fixing block connected to the top end of the connecting rod A is made to move, the presser foot plate is taken down from the presser foot handle, the presser foot plate of another model and function is replaced, and the processing efficiency and the quality of the sewing machine are improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic side view of the exploded structure of the present invention;

FIG. 4 is a schematic view of the connecting structure of the presser bar and the presser handle of the present invention;

FIG. 5 is a schematic view of the connection structure of the front pressure foot rod and the pressure foot handle of the present invention;

fig. 6 is a schematic view of the connection structure of the presser foot handle and the presser foot plate of the present invention.

Reference numbers in the figures: presser bar-1, presser handle 2, presser foot plate-3, screw-4, floating mechanism-5, fixing mechanism-6, through hole-1.1, connecting block-1.2, movable groove-1.3, mounting groove-2.1, connecting groove A-2.2, buffer block-2.3, buffer piece-2.4, connecting groove B-2.5, buffer groove-2.6, connecting hole-2.7, connecting rod B-3.1, floating block-5.1, spring-5.2, fixing block-6.1, connecting rod A-6.2, handle-6.3 and restoring piece-6.4.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in figure 1, a floating presser foot structure of a sewing machine, a presser foot rod 1 is connected with a piston rod on the sewing machine, the presser foot rod 1 is connected with the presser foot handle 2 through a screw 4, as shown in figure 2, a floating mechanism 5 is arranged between the presser foot rod 1 and the presser foot handle 2, when the thicknesses of cloth on the left and the right of the presser foot are inconsistent in the processing process of cloth with different thicknesses, the presser foot can move in a movable groove 1.3 through a floating block 5.1 on the floating mechanism 5 arranged on the left and the right of the presser foot rod 1, a spring 5.2 is compressed, the angle of the presser foot plate 3 is adjusted, the processed cloth is tightly pressed, the conditions of uneven pressure, wrinkles, needle skipping and the like in the sewing process are prevented, and the processing efficiency and the processing quality are influenced.

As shown in fig. 3, the presser foot plate 3 is installed at the bottom end of the presser foot handle 2, a fixing mechanism 6 is arranged at the joint of the presser foot handle 2 and the presser foot plate 3, when the presser foot plate 3 needs to be replaced, the handle 6.3 on the fixing mechanism 6 can be moved to drive the connecting rod a6.2 connected with the handle 6.3 to move, the fixing block 6.1 is moved into the connecting groove B2.5, the connecting rod B3.1 on the presser foot plate 3 drops from the connecting hole 2.7 at the bottom end of the presser foot handle 3, the presser foot plate 3 needing to be installed is installed in the connecting hole 2.7 by a worker, then the handle 6.3 is loosened, the restoring piece 6.4 is driven to move to fix the connecting rod B6.2 on the presser foot handle 2 in the spring restoring process, the fixing mechanism 6 is arranged at the bottom end of the presser foot handle 2, so that presser foot of different models and functions can be replaced in the cloth processing process, and the processing efficiency and the processing quality of the sewing machine are improved.

As shown in fig. 4, in the process of sewing and processing cloth, a floating block 5.1 and a spring 5.2 on a floating mechanism 5 are installed in a movable groove 1.3 on a presser bar 1, the spring 5.2 is connected with the presser bar 1 and the floating block 5.1, the bottom end of the floating block 5.1 is clamped with a connecting groove a2.2 on a presser bar handle 2, and two floating mechanisms 5 are respectively arranged at the left side and the right side of the presser bar 1; the floating mechanism 5 is arranged at the bottom of the presser foot rod 1, so that when the sewing machine is inconsistent with the left and right thickness cloth, the floating block 5.1 on the floating mechanism 5 compresses the spring 5.2 in the movable groove 1.3, the pressure of the presser foot is adjusted, the left and right pressure is consistent, and the conditions of wrinkles, needle skipping and the like in the sewing process are prevented.

As shown in fig. 5, in the sewing process of the cloth, the buffer slot 2.6 on the buffer mechanism is arranged at the bottom end of the mounting slot 2.1 of the presser foot handle 2, the buffer block 2.3 and the buffer element 2.4 are mounted in the buffer slot 2.6, the buffer element 2.4 is a metal spring, after the connecting block 1.2 at the bottom end of the presser foot rod 1 is clamped with the buffer slot 2.6, the buffer block 2.3 is pushed to move in the buffer slot 2.6, the buffer element 2.4 is compressed by the metal spring, the compressed buffer element 2.4 relieves the pressure generated by the presser foot rod 1, and the use time of the presser foot is prolonged.

As shown in fig. 6, in the process of processing the cloth, when different processing technologies are carried out on the cloth, the presser foot plate 3 needs to be replaced by a worker, the operator adjusts the handle 6.3 on the fixing mechanism 6 to move backwards, the return piece 6.4 connected on the connecting rod a6.2 is driven to compress the spring, the fixed block 6.1 connected at the top end of the connecting rod a6.2 is driven to move, the presser foot plate 3 is taken down from the presser foot handle 2, the presser foot plate 3 with another model and function is replaced, then the replaced presser foot plate 3 drives the fixed block 6.1 to move in the return piece 6.4 spring return process, the replaced presser foot plate 3 is fixed on the presser foot handle 2, and the processing efficiency and the quality of the sewing machine are improved.

The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles and techniques that may be employed. Meanwhile, the scope of the invention according to the present application is not limited to the technical solutions in which the above-described technical features are combined in a specific manner, and also covers other technical solutions in which the above-described technical features or their equivalent are combined arbitrarily without departing from the inventive concept described above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (7)

1. The utility model provides a sewing machine presser foot structure that floats, includes presser bar (1) and presser foot handle (2), characterized by: the foot pressing handle (2) is connected with the foot pressing rod (1) through a screw (4), a floating mechanism (5) is installed at the bottom end of the foot pressing rod (1), and the bottom end of the foot pressing handle (2) is connected with the foot pressing plate (3) through a fixing mechanism (6);

the floating mechanism (5) comprises a floating block (5.1) and a spring (5.2), the floating block (5.1) and the spring (5.2) are installed in a movable groove (1.3) on the presser bar (1), the spring (5.2) is connected with the presser bar (1) and the floating block (5.1), and the bottom end of the floating block (5.1) is clamped with a connecting groove A (2.2) on the presser bar handle (2);

fixed establishment (6) include fixed block (6.1), connecting rod A (6.2), reply piece (6.4) and handle (6.3), handle (6.3) with connecting rod A (6.2) are connected, reply piece (6.4) and install on connecting rod A (6.2), fixed block (6.1) set up connecting rod A (6.2) top, fixed block (6.1) are installed in spread groove B (2.5) of presser foot handle (2) bottom.

2. The floating presser foot structure of sewing machine according to claim 1, wherein: the number of the floating mechanisms (5) is two, and the two floating mechanisms are respectively arranged on the left side and the right side of the presser foot rod (1).

3. The floating presser foot structure of sewing machine according to claim 1, wherein: the floating block (5.1) is of a cylindrical structure.

4. The floating presser foot structure of sewing machine according to claim 1, wherein: the connecting groove A (2.2) is a cylindrical groove body.

5. The floating presser foot structure of sewing machine according to claim 1, wherein: the fixed block (6.1) is of a rectangular structure.

6. The floating presser foot structure of sewing machine according to claim 1, wherein: the connecting groove B (2.5) is of a rectangular structure.

7. The floating presser foot structure of sewing machine according to claim 1, wherein: the restoring piece (6.4) is a metal spring.

Images