Presser foot structure of template sewing machine

Abstract

The utility model relates to a presser foot structure of a template sewing machine, which comprises a body, the body is provided with an arc groove, the bottom of the body is a plane part used for preventing cloth from tilting, the plane part is of a plane structure, the plane part is provided with a through opening, and the opening is used for a needle to penetrate. A guide rod integrally arranged with the body is arranged on the outer side of the body, one end of the guide rod extends towards the outer side to serve as an extending end, the other end of the guide rod extends towards the opening and is connected with the opening, and the guide rod is used for guiding sewing adhesive tape to the position below the needle head. The adhesive tape sewing machine has the advantages that the sewing efficiency of the sewing adhesive tape can be improved.

Description

Technical Field

[0001] This utility model relates to the field of template sewing machine technology, specifically to a presser foot structure for a template sewing machine. Background Technology

[0002] In the garment production process, in order to hide the sewing threads and improve the final appearance of the garment, a concealed thread technique is used during sewing. This involves sewing the sewing thread and sewing tape together into the seam of the base fabric, then covering the base fabric with a cover fabric. By heating the sewing tape with a hot iron or heat gun, the base fabric and the cover fabric can be bonded together, thus concealing the sewing thread.

[0003] Currently, when sewing thread and sewing tape together into the seam, the main method involves creating guide grooves on a sewing template, and then using a template sewing machine to sew the thread into the guide grooves. In practice, the sewing tape needs to be cut to the appropriate length according to the guide groove, laid on the guide groove, and then the thread sewn into the guide groove using a template sewing machine. Therefore, this method has certain limitations in sewing efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a presser foot structure for a template sewing machine, which can improve the sewing efficiency of sewing tape.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a presser foot structure for a template sewing machine, comprising a body, the body having an arc groove, the bottom of the body being a flat portion for preventing fabric from curling up, the flat portion being a planar structure, the flat portion having a through opening for a needle to pass through, a guide rod integrally formed with the body on the outer side of the body, one end of the guide rod extending outward as an extension end, and the other end extending towards the opening and connecting with the opening, the guide rod being used to guide sewing tape below the needle.

[0006] The present invention is further configured such that: the extension end is provided with an anti-detachment rod, one end of the anti-detachment rod is rotatably connected to the extension end, and the other end is provided with a reciprocating continuously bending section, and an entry point for alternating insertion of sewing tape is formed between adjacent bending sections.

[0007] The present invention is further configured such that: the guide rod is provided with a symmetrical inwardly bent portion on the side opposite to the main body, and a through groove for sewing tape to pass through is formed between the bent portion and the guide rod.

[0008] The present invention is further configured such that: the arc groove is provided with an upwardly extending connecting sleeve shaft, and the connecting sleeve shaft is provided with a slot for inserting the needle seat rod, and the slot and the rod form a detachable connection.

[0009] The present invention is further configured such that: the peripheral wall of the connecting sleeve shaft is provided with a through sleeve threaded hole, the sleeve threaded hole communicates with the slot, and there are multiple sleeve threaded holes spaced apart from each other along the axial direction.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] Because a guide rod for guiding the sewing tape is provided on the main body, with one end of the guide rod extending towards and connecting to the opening, after the sewing tape is inserted into the guide rod, one end of the sewing tape can be guided to below the needle. Therefore, when it is necessary to sew the sewing tape and sewing thread into the guide groove of the template, the needle can press down to sew the part of the sewing tape opposite the needle into the guide groove. At this time, since one end of the sewing tape is fixed, when the template sewing machine drives the needle to move along the extension direction of the guide groove, one end of the rolled sewing tape can be pulled out along with the movement of the needle, and laid into the guide groove in sync with the sewing action of the needle. In this way, the sewing tape can be sewn into the guide groove by the sewing of the needle. Therefore, the laying of the sewing tape and the sewing of the sewing thread can be carried out simultaneously, thereby improving the sewing efficiency of the sewing tape. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model (I);

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention (II);

[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model (III);

[0015] Figure 4 This is a schematic diagram of the structure of the present invention when guiding sewing tape. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] First and foremost, it should be noted that the presser foot of a template sewing machine is fixed to the machine head to prevent the fabric from curling up during sewing. For example, Chinese patent document CN220300993U discloses a conventional structure for the presser foot, in which the presser foot is disc-shaped and the bottom is flat.

[0019] And such Figures 1 to 3 As shown, this utility model discloses a presser foot structure for a template sewing machine, including a disc-shaped body 1, which is integrally formed from metal. The body 1 has an arc groove 2 with an upward-facing opening. The bottom of the body 1 is machined into a flat part 3, which is a planar structure used to limit the fabric and prevent it from curling up. The flat part 3 has a through opening 43 in the middle, which is waist-shaped, for the needle of the template sewing machine to pass through for sewing operations.

[0020] A guide rod 5, integrally formed with the main body 1 by welding, is provided on the outer side of the main body 1. The guide rod 5 is in the shape of a flat metal strip. One end of the guide rod 5 extends outward to form an extension end 51, and the other end extends towards the opening 43 and connects with the edge of the opening 43. The guide rod 5 is used to guide the sewing tape 100 to below the needle. Specifically, the side of the guide rod 5 facing away from the main body 1 has symmetrically bent inward bending portions 52. A through groove 53 is formed between the two bending portions 52 and the guide rod 5. The two ends of the through groove 53 are open structures, and the width of the through groove 53 is slightly larger than the width of the sewing tape 100. After one end of the sewing tape 100 is pulled out and inserted into the through groove 53, the sewing tape 100 is pulled along the extension direction of the through groove 53, and under the guidance of the through groove 53, the sewing tape 100 is pulled to below the needle. Therefore, when it is necessary to sew the sewing tape 100 and sewing thread into the guide groove of the template, the needle can press down to sew the part of the sewing tape 100 opposite to the needle into the guide groove. At this time, since one end of the sewing tape 100 is fixed, when the template sewing machine drives the needle to move along the extension direction of the guide groove, one end of the rolled sewing tape 100 can be pulled out along with the movement of the needle, and laid into the guide groove in sync with the sewing action of the needle. In this way, the sewing tape 100 can be sewn into the guide groove by the sewing of the needle. Therefore, the laying of the sewing tape 100 and the sewing of the sewing thread can be carried out simultaneously, thereby improving the sewing efficiency of the sewing tape 100. Since the sewing tape 100 is rolled up, it can be fitted onto a rotating shaft to facilitate pulling the sewing tape 100.

[0021] like Figure 4 As shown, to prevent the portion of the sewing tape 100 pulled towards the needle from detaching from the guide rod 5, a cylindrical groove is provided at the end of the extension end 51. An anti-detachment rod 6 is connected within this groove; one end of the anti-detachment rod is inserted into the groove, allowing it to rotate around the axis of the groove. This achieves a rotatable connection between the anti-detachment rod 6 and the extension end 51. The main body of the anti-detachment rod 6 is a continuously reciprocating curved section (in a cosine or sine path), with insertion ports 61 formed between adjacent curved sections for the sewing tape 100 to alternately pass through. Thus, before introducing the sewing tape 100 into the through groove 53, one end of the sewing tape 100 can be alternately inserted into the insertion ports 61. The pressure exerted by the anti-detachment rod 6 on the surface of the sewing tape 100 prevents it from detaching.

[0022] Furthermore, a cylindrical connecting sleeve 7 extends upward from the top of the arc groove 2. A slot 71 is provided inside the connecting sleeve 7, the inner diameter of which matches the outer diameter of the sewing machine needle holder insert. Three sets of threaded holes 72 are provided on the side wall of the slot 71, communicating with the slot 71. When connecting the presser foot to the needle holder insert, the insert is inserted into the slot 71, and the threaded holes on the insert align with the threaded holes 72 of the sleeve, then fixed by screwing in a screw. The multiple spaced threaded holes 72 allow for connection to needle holder inserts of different lengths.

[0023] Working principle description: When sewing tape 100 and sewing thread need to be sewn into the guide groove of the template, first install the presser foot onto the sewing machine head, then pull out one end of the sewing tape 100 and alternately thread it through each insertion point 61. Guide the pulled-out portion of the sewing tape 100 into the through groove 53 until it reaches below the needle. Then press the pulled-out portion of the sewing tape 100 into the needle, completing the preparatory work. The template sewing machine then controls the needle pressure to... The portion of the sewing tape 100 opposite the needle is sewn into the guide groove. Since one end of the sewing tape 100 is fixed, when the template sewing machine moves the needle along the extension direction of the guide groove, one end of the rolled sewing tape 100 can be pulled out along with the movement of the needle and laid into the guide groove in sync with the sewing action of the needle. In this way, the sewing tape 100 can be sewn into the guide groove by the sewing of the needle. Therefore, the laying of the sewing tape 100 and the sewing of the thread can be carried out simultaneously, thereby improving the sewing efficiency of the sewing tape 100.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A presser foot structure of a template sewing machine comprising a body provided with an arcuate groove, a flat portion at the bottom of the body for preventing the fabric from being raised, the flat portion being a flat structure, the flat portion being provided with a through opening for the needle to pass through, characterized in that, The outer side of the main body is provided with a guide rod integrally formed with the main body. One end of the guide rod extends outward as an extension end, and the other end extends towards the opening and connects with the opening. The guide rod is used to guide the sewing tape to below the needle.

2. The presser foot structure of a template sewing machine according to claim 1, wherein The extension end is provided with an anti-detachment rod. One end of the anti-detachment rod is rotatably connected to the extension end, and the other end is provided with a reciprocating and continuously bending section. An entry point is formed between adjacent bending sections for the sewing tape to be inserted alternately.

3. The presser foot structure of a template sewing machine according to claim 2, wherein The guide rod has a symmetrical inwardly bent portion on the side opposite to the main body, and a through groove is formed between the bent portion and the guide rod for sewing tape to pass through.

4. The structure of a presser foot of a template sewing machine according to claim 1, wherein The arc groove is provided with an upwardly extending connecting sleeve shaft, and the connecting sleeve shaft is provided with a slot for inserting the needle seat rod, and the slot and the rod form a detachable connection.

5. The presser foot structure of a template sewing machine according to claim 4, wherein The connecting sleeve shaft has a through threaded hole on its peripheral wall. The threaded hole communicates with the slot. There are multiple threaded holes that are spaced apart from each other along the axial direction.

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