Presser foot for sewing safety air bag reinforcing strip
By designing a presser foot for sewing airbag reinforcement strips, including precise guide devices and adjusting long strip holes, the problems of uneven stitching, low accuracy and reinforcing strip offset during the sewing process are solved, and higher sewing accuracy and airbag quality are achieved.
Patent Information
- Application Number
- CN202421854141.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-01
AI Technical Summary
When sewing airbag reinforcement strips, traditional sewing pressing feet lack accurate guides, resulting in uneven sewing stitches, low accuracy, and easy deflection of reinforcement strips, affecting the performance and quality of the airbag.
A presser foot for sewing airbag reinforcement strips is designed, including a connecting part and a positioning part. The top of the connecting part is equipped with a connecting hole and the output end of the sewing machine. The positioning part is fixedly connected to the guide rail, and precise guidance and position adjustment are achieved through the guide part and the adjustment strip hole.
Through the design of this presser foot, the uniformity and stability of the sewing stitches are achieved, preventing the presser foot from being offset during the sewing process, and improving the sewing accuracy and the overall performance and quality of the airbag.
Smart Images
Figure CN222886782U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sewing machines, and particularly relates to a presser foot for sewing airbag reinforcement strips. Background Art
[0002] During the production of airbags, sewing operations need to be performed on the airbag reinforcement strips. When traditional sewing presser feet sew such reinforcement strips, due to the lack of precise guiding devices, it is easy to cause uneven sewing thread traces, low sewing accuracy, and easy offset of the reinforcement strips, affecting the performance and quality of the airbags. Summary of the Utility Model
[0003] The utility model provides a presser foot for sewing airbag reinforcement strips, which can effectively solve the above problems.
[0004] The utility model is realized as follows:
[0005] A presser foot for sewing airbag reinforcement strips, the presser foot includes a connecting part and a positioning part. The bottom of the connecting part is fixedly connected to the top of the positioning part. A connecting hole is opened at the top of the connecting part, and the connecting hole is used for sleeving with the output end of the sewing machine. An opening groove is vertically arranged on the rear side surface of the connecting part, and the opening groove communicates with the connecting hole. A limiting hole is penetrated through the left side surface of the connecting part, and the limiting hole penetrates through the left and right side surfaces of the connecting part at the same time;
[0006] The bottom of the positioning part is fixedly connected to a guide rail. The positioning part includes a first guiding part, the top of the first guiding part is fixedly connected to the bottom of the connecting part. One end of the first guiding part far away from the bottom of the connecting part is bent downward in an arc and extends horizontally to form a second guiding part. One end of the second guiding part far away from the first guiding part is bent upward in an arc and extends vertically to form a third guiding part.
[0007] As a further improvement, reinforcing strips are arranged on the side edges of the connecting part with edge wrapping.
[0008] As a further improvement, an adjusting long hole is arranged on the second guiding part.
[0009] As a further improvement, two groups of the adjusting long holes are arranged, and the two groups of the adjusting long holes are arranged in parallel with each other in a staggered manner.
[0010] As a further improvement, a locking hole is penetrated through the third guiding part.
[0011] As a further improvement, the width of the guide rail is 0.4 mm - 0.7 mm wider than the width of the reinforcement strip.
[0012] As a further improvement, the length of the adjusting long slot is 8-10 mm.
[0013] The beneficial effects of the present utility model are as follows: By providing an opening groove on the connecting portion, a certain deformation space is realized for the connecting portion, thereby increasing the applicability of the connecting portion; secondly, by providing reinforcing strips on the two side edges of the connecting portion, the presser foot is prevented from shifting during the sewing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 is an overall structural schematic diagram of a presser foot for sewing a safety airbag reinforcing strip of the present utility model;
[0016] Figure 2 is an overall left-view structural schematic diagram of a presser foot for sewing a safety airbag reinforcing strip of the present utility model;
[0017] Figure 3 is a top-view of the overall structure of a presser foot for sewing a safety airbag reinforcing strip of the present utility model.
[0018] Reference numerals:
[0019] 1 - connecting portion, 2 - connecting hole, 3 - opening groove, 4 - first guiding portion, 5 - second guiding portion, 6 - third guiding portion, 7 - reinforcing strip, 8 - locking hole, 9 - limiting hole, 10 - adjusting long slot. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "above", "both ends", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0022] Refer to Figures 1-3 As shown, this embodiment provides a presser foot for sewing an airbag reinforcement strip. The presser foot includes a connecting portion 1 and a positioning portion. The bottom of the connecting portion 1 is fixedly connected to the top of the positioning portion. A connecting hole 2 is provided at the top of the connecting portion 1 for sleeving with the output end of a sewing machine. An opening groove 3 is vertically provided on the rear side surface of the connecting portion 1, and the opening groove 3 communicates with the connecting hole 2. A limiting hole 9 is provided through the left side surface of the connecting portion 1, and the limiting hole 9 penetrates through the left and right side surfaces of the connecting portion 1 at the same time;
[0023] The bottom of the positioning portion is fixedly connected to a guide rail. The positioning portion includes a first guiding portion 4. The top of the first guiding portion 4 is fixedly connected to the bottom of the connecting portion 1. One end of the first guiding portion 4 away from the bottom of the connecting portion 1 is bent downward in an arc and extends horizontally to form a second guiding portion 5. One end of the second guiding portion 5 away from the first guiding portion 4 is bent upward in an arc and extends vertically to form a third guiding portion 6.
[0024] By providing an opening groove 3 on the connecting portion 1, the connecting portion 1 can have a certain deformation space, thereby increasing the applicability of the connecting portion 1.
[0025] Further, reinforcing strips 7 are provided on the edges of both sides of the connecting portion 1.
[0026] By wrapping and arranging reinforcing strips 7 on both sides of the connecting part 1, the presser foot is prevented from shifting during the sewing process.
[0027] Furthermore, an adjusting long slot hole 10 is provided on the second guiding part 5.
[0028] By correspondingly arranging the adjusting long slot hole 10 on the second guiding part 5 and the guide rail, the presser foot can be adjusted in the front-back position on the guide rail, and thus the sewing device can be applicable to airbags of different specifications.
[0029] Furthermore, there are two groups of the adjusting long slot holes 10, and the two groups of the adjusting long slot holes 10 are arranged in parallel with each other in a staggered manner.
[0030] By arranging two groups of adjusting long slot holes 10 that are staggered and parallel to each other, the moving range of the presser foot on the guide rail is enhanced.
[0031] Furthermore, a locking hole 8 is penetrated and provided on the third guiding part 6.
[0032] By providing a connecting hole 2 on the third guiding part 6 and fixing the third guiding part 6 to the track by cooperating with a locking bolt, the situation that the presser foot shifts on the track is further avoided, and stability can also be provided for the sewing of the airbag, ensuring the uniformity and stability of the sewing stitch.
[0033] Furthermore, the width of the guide rail is 0.4 mm - 0.7 mm wider than the width of the reinforcing strip 7.
[0034] In this embodiment, the width of the guide rail is 0.5 mm wider than the width of the reinforcing strip 7. Such a setting can avoid the collision when the presser foot moves on the guide rail, and can also avoid the situation that the presser foot is prone to shift on the guide rail when the width difference between the two is too large.
[0035] Furthermore, the length of the adjusting long slot hole 10 is 8 - 10 mm.
[0036] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A presser foot for sewing airbag reinforcement strips, characterized in that: The presser foot comprises a connecting portion and a positioning portion, the bottom of the connecting portion is fixedly connected to the top of the positioning portion, a connecting hole is provided on the top of the connecting portion, the connecting hole is used to be sleeved with the output end of the sewing machine, an opening slot is vertically provided on the rear side of the connecting portion, the opening slot is communicated with the connecting hole, a limiting hole is provided through the left side of the connecting portion, and the limiting hole simultaneously passes through the left and right sides of the connecting portion; The bottom of the positioning part is fixedly connected to the guide rail, and the positioning part includes a first guide part, the top of the first guide part is fixedly connected to the bottom of the connecting part, the first guide part is bent downward in an arc at one end away from the bottom of the connecting part and extends in a horizontal direction to form a second guide part, and the second guide part is bent upward in an arc at one end away from the first guide part and extends in a vertical direction to form a third guide part.
2. The presser foot for sewing an airbag reinforcement strip according to claim 1, characterized in that: Reinforcement strips are arranged on both sides of the connecting portion.
3. The presser foot for sewing an airbag reinforcement strip according to claim 1, characterized in that: The second guide portion is provided with an adjusting elongated hole.
4. The presser foot for sewing a reinforcement strip of an airbag according to claim 3, characterized in that: The adjusting long strip holes are provided in two groups, and the two groups of adjusting long strip holes are arranged in parallel and staggered with each other.
5. The presser foot for sewing a safety airbag reinforcement strip according to claim 1, characterized in that: The third guide portion is penetrated by a locking hole.
6. The presser foot for sewing a safety airbag reinforcement strip according to claim 1, characterized in that: The width of the guide rail is 0.4 mm to 0.7 mm wider than the width of the reinforcement strip.
7. The presser foot for sewing a safety airbag reinforcement strip according to claim 3, characterized in that: The length of the adjusting strip hole is 8-10 mm.