CN214032921U

CN214032921U - Sewing mechanism

Info

Publication number: CN214032921U
Application number: CN202023102847.0U
Authority: CN
Inventors: 颜彦
Original assignee: Xiamen Pinda Industry And Trade Co ltd
Current assignee: Xiamen Pinda Industry And Trade Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-24
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a sewing mechanism, including presser bar and presser foot, the terminal fixed surface that presser bar was kept away from to the presser foot is provided with the guide, and the upper surface that the presser foot is close to guide one end is provided with first clearance, and the side that the presser foot is close to the one end of guide is fixed to be provided with baffle spare, is provided with the second clearance that supplies the meshbelt to wear to establish between baffle spare and the presser foot, first clearance and second clearance through connection. The technical problems that manual operation causes extremely low edge covering work efficiency, mutual displacement is easy to occur in the feeding process, frequent reworking is caused, and great troubles are caused to producers are solved.

Description

Sewing mechanism

Technical Field

The utility model relates to a sewing field to in particular to sewing mechanism.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine is generally composed of four parts, namely a machine head, a machine base, a transmission part and an accessory part. The machine head is the main part of the sewing machine and consists of four mechanisms of material needling, thread hooking, thread picking and feeding, auxiliary mechanisms of winding, material pressing, tooth dropping and the like, and the motion of the mechanisms is reasonably matched and works circularly to sew up the sewing materials. 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 presser foot is an indispensable structural member of a sewing machine, and applies pressure to the surface of a cloth material in a process of sewing the cloth material by the sewing machine. The presser foot of the existing sewing machine is fixed on the presser foot of the sewing machine, and in the process of sewing cloth, an operator needs to adjust and guide the cloth entering the lower part of the presser foot at any time, so as to ensure that the cloth can be sewn in order in the processes of sewing, serging and the like and improve the quality of products.

However, there are many disadvantages in sewing the fabric in the above manner, for example, when the fabric is subjected to seam allowance hemming, the currently adopted manner is that a worker firstly folds the braid in half and wraps the braid at the edge of the fabric, then the braid and the fabric are conveyed along with the tooth plate, and a sewing machine stitches the braid and the fabric seam allowance hemming. The method is completed by two working procedures, the working efficiency is extremely low, and the phenomenon of mutual displacement is easy to occur in the feeding process, so that frequent reworking is caused, and great trouble is caused to producers. An electric sewing machine, a necessary garment sewing device for modern garment enterprises. The electric sewing machine has the characteristics of intellectualization, lightness, easy operation, safety and the like, can quickly sew clothes, and is widely applied. However, in order to match with an electric sewing machine for quick sewing, a plurality of auxiliary tools are needed so as to improve the sewing efficiency, and when clothes are sewn, the cloth at the sewing position needs to be embossed and covered with edges.

SUMMERY OF THE UTILITY MODEL

The manual wrapping machine aims to solve the technical problems that in the prior art, the traditional manual wrapping is adopted, the wrapping work efficiency is extremely low, the phenomenon that the wrapping work is mutually deviated is easily caused in the feeding process, the frequent reworking is caused, and great troubles are caused to producers.

The utility model provides a sewing mechanism, including presser bar and presser foot, the terminal fixed surface that presser bar was kept away from to the presser foot is provided with the guide, and the upper surface that the presser foot is close to guide one end is provided with first clearance, and the side that the presser foot is close to the one end of guide is fixed to be provided with baffle spare, is provided with the second clearance that supplies the meshbelt to wear to establish between baffle spare and the presser foot, first clearance and second clearance through connection. By means of the arrangement of the first gap, the second gap and the baffle piece, sewing is carried out while the braid is folded, convenient and efficient edge covering and sewing operation are achieved, and the problems of low efficiency and uneven sewing quality caused by manual edge covering are solved.

Preferably, a cutter for cutting off the redundant rim charge at the edge of the object to be sewn is fixedly arranged at one side of the presser foot rod. The arrangement of the cutter realizes that the cloth edge of the object to be sewn is sheared and the sewing operation is carried out at the same time.

It is further preferred that the barrier member is disposed between the cutter blade and the presser foot. The baffle piece is arranged to facilitate the edge folding treatment of the woven belt, so that the woven belt forms a C-shaped structure to move along the sewing direction.

Preferably, the presser foot comprises a presser foot plate, a sewing needle hole and a first gap, and the sewing needle hole and the first gap are arranged on one side, close to the baffle piece, of the presser foot plate. The arrangement of the first gap and the baffle piece is convenient for carrying out edge folding treatment on the woven belt.

Preferably, the bottom of the presser foot far away from one side of the baffle piece is provided with a limiting strip parallel to the sewing direction. By means of the arrangement of the limiting strips, the regularity of the folded edge is further improved, or the cut of the object to be sewn can be neatly drawn.

Further preferably, the distance between the limiting strip and the center of the sewing needle hole is within the range of 0.1-0.3 mm. The requirement of different process line pressing widths can be realized by setting the distance between the limiting strip and the center of the sewing needle hole.

Further preferably, the thickness of the limiting strip is larger than that of the woven tape and/or the object to be sewn. By means of the thickness of the limiting strips, the woven belt and/or the object to be sewn do not exceed the limiting strips in the moving process, and the sewing lines and/or the tangent plane of the object to be sewn are regular and straight.

Preferably, the guide piece is flat cuboid and head and tail both ends of inside cavity are provided with uncovered. By means of the hollow flat structure, the mesh belt can move smoothly, and knotting is avoided.

It is further preferred that the guide member is provided with a flange extending axially outwardly to form a flare adjacent the open end of the first gap. By means of the arrangement of the flanging, the mesh belt is enabled to be smooth to the first gap and extend to the bottom of the presser foot.

Preferably, the guide is inclined at 30 ° to 45 ° relative to the foot base. The guide piece and the presser foot are arranged at the inclination angle, so that a relatively enough space is conveniently reserved, an object to be sewn is arranged under the presser foot, and the arrangement of the inclination angle is convenient for the smooth movement of the woven belt.

The utility model discloses a sewing mechanism through setting up first clearance, guide, second clearance and baffle spare for the staff need not be with the meshbelt fifty percent discount earlier, and wraps in cloth edge, then presses meshbelt and cloth along with the dental lamina conveying, and the sewing machine suture is in order to realize borduring the cloth tang, avoids needing the manual work to divide the twice process to accomplish. The technical problems that manual operation causes extremely low edge covering work efficiency, mutual displacement is easy to occur in the feeding process, frequent reworking is caused, and great troubles are caused to producers are solved.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a schematic view of the overall structure of a sewing mechanism according to an embodiment of the present invention;

fig. 2 is a bottom view of a sewing mechanism according to an embodiment of the present invention;

description of the reference numerals: 1. the novel sewing machine comprises a presser foot rod, 2 parts of a presser foot, 3 parts of a guide piece, 4 parts of a baffle piece, 5 parts of a cutter, 6 parts of a limiting strip, 21 parts of a sewing needle hole, 22 parts of a first gap, 23 parts of a presser foot plate, 31 parts of an opening, 41 parts of a second gap and 51 parts of a blade structure.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Referring to fig. 1, fig. 1 shows a schematic view of the overall structure of a sewing mechanism according to an embodiment of the present invention. As shown in fig. 1, the sewing mechanism includes a presser bar 1 and a cutter 5 which are provided on the left and right sides and fixed to the sewing machine, and a presser foot 2 adjustably connected to the bottom of the presser bar 1 through a hinge portion 24 and a spring, the spring being provided in the hinge portion 24, the presser foot 2 being adjustably connected to the presser bar 1 through a pin provided on the hinge portion 24. The presser foot 2 is composed of a hinge portion 24, a presser foot plate 23 and a guide piece 3 which are integrally welded, the hinge portion 24 and the guide piece 3 are respectively positioned at the front end and the rear end of the presser foot plate 23, the guide plate 3 is fixedly welded with the upper surface of the tail end of the presser foot plate 23, one side of the presser foot plate 23 close to the cutter 5 is sequentially provided with a first gap 22 and a sewing needle hole 21 along the sewing direction of a sewing object, the guide piece 3 is arranged into a flat rectangular long body structure with a hollow inner part, and two ends are provided with openings 31, wherein the opening 31 close to the first gap 22 extends outwards along the axial direction to form a flared flanging, the flanging is in arc transitional connection with the side edge of the first gap 22, the mesh belt can conveniently pass through the cavity of the guide piece 3, and the opening close to the first gap 22 from the guide piece 3 is smoothly guided to the bottom of the presser foot plate 23 through the first gap 22. The side edge of the presser foot plate 23 close to one side of the cutter 5 and close to the direction of the guide part 3 is welded with the baffle part 4, the baffle part 4 and the presser foot 2 form a second gap 41, the baffle part 4 can be arranged perpendicular to the second gap 41, the braid extends to the bottom of the presser foot plate 23 through the first gap 22, and the hem passes through the second gap 41 to form a C-shaped structure and moves along with the object to be sewn along the sewing direction, so that the braid is folded to obtain the hem effect and is fixed at the edge of the object to be sewn according to the actual requirement, finally, the braid and the object to be sewn are conveyed along with the toothed plate under the pressing of the presser foot plate 23, the sewing needle of the sewing machine sews from the sewing needle hole 21 to realize the unilateral edge covering of the seam of the object to be sewn, thus, the operation is more convenient and efficient, the efficiency is high, the operation is completed through only one process, the labor intensity of workers is greatly reduced, and the working efficiency can be improved, and the phenomenon of mutual displacement can be avoided in the feeding process, so that the sewing quality is ensured.

In some specific embodiments, the guide 3 is provided on the end surface of the footpad 23 away from the footpad bar 1, and the inclination angle a of the guide 3 with respect to the footpad 23 is taken to be in the range of 30 ° to 45 °, which is provided to facilitate sliding the webbing down the cavity of the guide 3.

In some specific embodiments, the cutter 5 comprises a blade structure 51 arranged parallel to the sewing direction, the cutter 5 is fixed on the outer side of the baffle piece 4, and the distance between the cutter 5 and the baffle piece 4 is set to be as small as possible, so that redundant rim charge at the edge of the object to be sewn can be cut off conveniently, and the neat and regular sewing treatment of the woven tape to the seam allowance can be ensured.

In some specific embodiments, the presser foot plate 23 at one end of the presser foot 2, which is far away from the presser foot rod 1, is arranged to be tilted upwards in an arc manner, so that when the front end of the presser foot plate 23 is tilted, a to-be-sewn object can be smoothly placed below the presser foot 2, and when the hinged presser foot 2 is driven and lifted by the presser foot rod 1, the front end of the presser foot 1 can be smoothly pressed, so that the to-be-sewn object can be abutted and limited. Further preferably, the guide 3 is welded on the upper surface of the upturned part of the foot pressing plate 23, so that a certain inclination angle is formed between the guide 3 and the bottom end of the foot pressing plate 23, the arrangement of the inclination angle can be determined according to a welding point with the foot pressing plate 23, the webbing belt can conveniently pass through the cavity of the guide 3, the first gap 22 and the second gap 41 in sequence along the sewing direction, the hemming movement operation is completed, the sewing efficiency is improved, and the sewing quality is ensured.

In some specific embodiments, with continued reference to fig. 2, fig. 2 illustrates a bottom view of a sewing mechanism according to one specific embodiment of the present invention. As shown in fig. 2, the bottom of the foot pressing plate 23 far from the side of the baffle 4 is provided with a limit strip 6 for limiting the woven belt and/or the object to be sewn, the distance D between the limit strip 6 and the circle center of the sewing needle hole 21 is set to be 0.1-0.3mm, and the value of the specific parameter is set according to the width of the pressing line in the actual production. The sewing object enters the presser foot 2 from the bottom of the rightmost presser foot plate 23, the cutter 5 cuts off the redundant cloth of the sewing object, the woven belt enters from the opening on the right side in the guide piece 3, the woven belt comes out from the opening close to the first gap 22 in the guide piece 3 along the cavity direction of the guide piece 3, extends to the lower part of the presser foot 2 through the first gap 22, and under the action of the second gap 41 and the limiting strip 6, the woven belt is in a C shape and moves along the sewing direction together with the sewing object under the transmission of the presser teeth, the edge of the bottom of the woven belt is fed and sewn together with the sewing object along the sewing direction under the limiting of the limiting strip 6, and the phenomenon of mutual displacement is avoided. Preferably, the thickness of spacing 6 sets up according to the thickness of treating the thickness of sewing thing and/or meshbelt, and the spacing 6 of being convenient for is spacing to the meshbelt and/or treating the carrying on of sewing thing, and spacing 6 and cutter 5's cooperation for treat that the sewing thing removes unnecessary cloth on the higher authority of sewing direction, make the incision straighter regular. The stop strip 6 is matched with the first gap 22 and the second gap 41, so that the woven belt can be fed and sewn together with an object to be sewn more straightly along the sewing direction.

The operation steps and the principle of the sewing mechanism are as follows:

1. the object to be sewn is penetrated from the lower part of the presser foot 3, and the tilted front end of the presser foot 2 is pressed on the cloth;

2. the woven belt penetrates through an opening of the guide frame 3, which is far away from the first gap 22, the woven belt is guided into the position below the presser foot 2 by the first gap 22, and the woven belt is enabled to be in a C-shaped structure through the combined action of the second gap 41, the limiting strip 6 and the baffle piece 4, and the single-side folded edge ground and the object to be sewn are superposed to wait for sewing;

3. the sewing machine body is started, sewing is carried out on one side of the hem penetrating into the bottom of the presser foot 2 while sewing is carried out on the object to be sewn, and meanwhile, the cutter 5 located on one side of the presser foot 2 cuts off redundant rim charge on the edge of the object to be sewn.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. A sewing mechanism comprises a presser foot rod and a presser foot, and is characterized in that a guide piece is fixedly arranged on the upper surface of the tail end of the presser foot, which is far away from the presser foot rod, a first gap is arranged on the upper surface of one end of the presser foot, which is close to the guide piece, a baffle piece is fixedly arranged on the side edge of one end of the presser foot, which is close to the guide piece, a second gap for a woven belt to penetrate is arranged between the baffle piece and the presser foot, and the first gap is in through connection with the second gap.

2. The sewing mechanism of claim 1, wherein a cutter for cutting off excess edge trim of the material to be sewn is fixedly mounted on one side of the presser bar.

3. The sewing mechanism of claim 2, wherein the baffle member is disposed between the cutter and the presser foot.

4. The sewing mechanism of claim 1, wherein the presser foot includes a presser foot plate, a sewing needle hole, and the first gap, the sewing needle hole and the first gap opening on a side of the presser foot plate adjacent to the baffle member.

5. The sewing mechanism of claim 4, wherein a bottom of the presser foot on a side away from the barrier member is provided with a stopper bar parallel to a sewing direction.

6. The sewing mechanism of claim 5, wherein the distance between the stop bar and the center of the needle hole is within the range of 0.1-0.3 mm.

7. The sewing mechanism of claim 5, wherein the thickness of the stopper bar is greater than the thickness of the webbing and/or the material to be sewn.

8. The sewing mechanism of claim 1, wherein the guide is a flat cuboid with a hollow interior and open ends at the front and rear ends.

9. The sewing mechanism of claim 8, wherein the guide is provided with a flange extending axially outwardly to form a flare adjacent the open end of the first gap.

10. The sewing mechanism of claim 1, wherein the guide is inclined at an angle of 30 ° -45 ° relative to a bottom of the presser foot.