An elastic cord stop for waist seam construction

CN224704812UActive Publication Date: 2026-09-01SUZHOU DSP SAFETY TECH CO LTD
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Patent Information

Application Number
CN202522545629.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-09-01
Estimated Expiration
2035-12-01

AI Technical Summary

Technical Problem

[0004]1、橡筋本身具有弹性,在人工拉伸和送料过程中极易发生橡筋易滑动、偏移,导致缝制位置不准确,导致缝制出的裤腰橡筋歪斜、左右不对称或局部皱褶,严重影响产品美观度和穿着舒适度,为保证质量,往往需要安排熟练工操作,并对成品进行频繁检查和返修;

Benefits of technology

[0019] The beneficial effects of this utility model are as follows: This utility model proposes an elastic band limiting mechanism for sewing trouser waistbands, including a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and the top of the second connecting plate 40... A gap exists between the end of the garment piece slot 70 and the first carrier plate 50, forming a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50, and the second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and restrict the starting sewing position of the elastic band. By setting the elastic band slot 80 and the garment piece slot 70, the elastic band and the waistband fabric are precisely positioned respectively, preventing misalignment during sewing. The structure is compact, easy to install, and can be quickly adapted to existing sewing machines. It significantly improves sewing speed, reduces rework rate, reduces costs, is easy for employees to master, and is suitable for large-scale production.

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Abstract

The utility model provides a kind of elastic band limiting mechanism for waistband sewing, including needle plate fixedly installed on the sewing machine base by bolt of mounting plate, the upper surface of mounting plate is connected with fixed part, first connecting plate is slidably connected with fixed part, one end of second connecting plate is connected with first connecting plate, first load plate is bent back to form notch, second connecting plate is connected with first load plate, and there is gap between the top end of second connecting plate and first load plate to form garment piece clamping groove, garment piece clamping groove is used to press and guide waistband fabric during sewing process, second load plate is connected with first load plate, second load plate is bent back to form elastic band clamping groove, elastic band clamping groove is used to guide and limit the starting sewing position of elastic band, by setting elastic band clamping groove and garment piece clamping groove, respectively accurately positioning elastic band and waistband fabric, prevent misplacement during sewing process;Compact structure, easy to install;Significantly improve sewing speed, reduce rework rate, reduce cost, easy for staff to master.
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Description

Technical Field

[0001] This utility model belongs to the technical field of garment processing equipment, and more specifically, relates to an elastic band limiting mechanism for sewing trouser waistbands. Background Technology

[0002] In the garment manufacturing industry, especially in the sewing of trouser waistbands, inserting elastic bands into the waistband to provide a waist-cinching function is a common and crucial step. Currently, the industry still widely relies on manual assistance from workers for this step. Specifically, the operator needs to pull the waistband fabric with one hand and stretch the elastic band with the other hand, roughly aligning it with the area to be sewn, before sewing it on a sewing machine.

[0003] However, in the existing elastic waistband sewing process, the elastic is usually aligned with the waistband fabric by hand and guided by hand before sewing. This method has the following problems:

[0004] 1. Elastic bands are inherently elastic, and during manual stretching and feeding, they are prone to slipping and shifting, resulting in inaccurate sewing positions. This leads to skewed, asymmetrical, or locally wrinkled elastic bands on the waistbands of the pants, which seriously affects the product's appearance and wearing comfort. To ensure quality, skilled workers are often required to operate the equipment, and the finished products are frequently inspected and reworked.

[0005] 2. The needle is prone to puncturing the elastic band, causing it to break or lose its elasticity. Because the elastic band is in an unstable floating state when held manually, the needle is very likely to puncture the same position of the elastic band or cut it off, often requiring rework and increasing costs.

[0006] 3. Low sewing efficiency, dependent on operator skill and experience, and poor quality stability;

[0007] 4. High rework rate affects production efficiency and cost control.

[0008] Therefore, there is an urgent need for a simple and easy-to-operate elastic band limiting mechanism that can stably limit the position of the elastic band and waistband fabric during sewing, prevent elastic band misalignment and needle punctures, and improve sewing efficiency and quality stability. Utility Model Content

[0009] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes an elastic band limiting mechanism for sewing trouser waistbands, including a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and the second connecting plate 40... A gap exists between the top end and the first carrier plate 50 to form a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50. The second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and restrict the starting sewing position of the elastic band. By setting the elastic band slot 80 and the garment piece slot 70, the elastic band and the waistband fabric are accurately positioned respectively, preventing misalignment during sewing. The structure is compact, easy to install, and can be quickly adapted to existing sewing machines. It significantly improves sewing speed, reduces rework rate, reduces costs, is easy for employees to master, and is suitable for large-scale production.

[0010] An elastic band limiting mechanism for sewing waistbands includes a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and there is a gap between the top end of the second connecting plate 40 and the first carrier plate 50 to form a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50. The second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and limit the starting sewing position of the elastic band.

[0011] Furthermore, the elastic band groove 80 is one of a V-shaped, U-shaped, or wedge-shaped opening groove.

[0012] Furthermore, the groove width of the elastic band groove 80 is 2-4mm.

[0013] Furthermore, the width of the garment piece slot 70 is 1-3mm.

[0014] Furthermore, the fixing member 20 is provided with a first waist-shaped hole 90 for adjusting the front and rear positions of the first carrier plate 50 and fixing it by a first limiting screw 100.

[0015] Furthermore, the first connecting plate 30 is provided with a second oblong hole 110 for adjusting the left and right position of the first carrier plate 50 and fixing it by a second limiting screw 120.

[0016] Furthermore, the first connecting plate 30 and the second connecting plate 40 are integrally formed, and both are made of stainless steel.

[0017] Furthermore, the first carrier plate 50 and the second carrier plate 60 are integrally formed, and both the first carrier plate 50 and the second carrier plate 60 are made of transparent materials.

[0018] Furthermore, a gap is left between the first carrier plate 50 and the mounting plate 10.

[0019] The beneficial effects of this utility model are as follows: This utility model proposes an elastic band limiting mechanism for sewing trouser waistbands, including a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and the top of the second connecting plate 40... A gap exists between the end of the garment piece slot 70 and the first carrier plate 50, forming a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50, and the second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and restrict the starting sewing position of the elastic band. By setting the elastic band slot 80 and the garment piece slot 70, the elastic band and the waistband fabric are precisely positioned respectively, preventing misalignment during sewing. The structure is compact, easy to install, and can be quickly adapted to existing sewing machines. It significantly improves sewing speed, reduces rework rate, reduces costs, is easy for employees to master, and is suitable for large-scale production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the elastic band limiting mechanism for sewing trouser waistbands according to the present invention.

[0021] Figure 2 This is a top view of an elastic band limiting mechanism for sewing trouser waistbands according to the present invention.

[0022] Explanation of key component symbols:

[0023] Mounting plate 10, fastener 20, first connecting plate 30, second connecting plate 40, first carrier plate 50, second carrier plate 60, garment piece slot 70, elastic band slot 80, first waist-shaped hole 90, first limiting screw 100, second waist-shaped hole 110, second limiting screw 120.

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0025] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.

[0026] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).

[0027] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections.

[0028] Example 1

[0029] like Figure 1 The diagram shown is a structural schematic of an elastic band limiting mechanism for sewing trouser waistbands according to this utility model; Figure 2 The image shown is a top view of an elastic band limiting mechanism for sewing trouser waistbands according to this utility model.

[0030] An elastic band limiting mechanism for sewing trouser waistbands includes a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and the second connecting plate 60... A gap exists between the top of plate 40 and the first carrier plate 50 to form a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50. The second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and restrict the starting sewing position of the elastic band. When sewing, the elastic band engages with the elastic band slot 80. The upper surface of the second carrier plate 60 holds the first waistband fabric, and the garment piece slot 70 holds the second waistband fabric, restricting the position of the elastic band and the fabric during sewing to prevent misalignment.

[0031] The elastic band groove 80 is one of a V-shaped, U-shaped, or wedge-shaped opening groove, and the groove width of the elastic band groove 80 is 2-4mm.

[0032] The width of the garment piece slot 70 is 1-3mm.

[0033] The fastener 20 is provided with a first waist-shaped hole 90 for adjusting the front and rear positions of the first carrier plate 50 and is fixed by a first limiting screw 100.

[0034] The first connecting plate 30 is provided with a second waist-shaped hole 110 for adjusting the left and right position of the first carrier plate 50 and fixing it by a second limiting screw 120.

[0035] The first connecting plate 30 and the second connecting plate 40 are integrally formed and are both made of stainless steel.

[0036] The first carrier plate 50 and the second carrier plate 60 are integrally formed, and both the first carrier plate 50 and the second carrier plate 60 are made of transparent materials.

[0037] A gap is left between the first carrier plate 50 and the mounting plate 10.

[0038] The beneficial effects of this utility model are as follows: This utility model proposes an elastic band limiting mechanism for sewing trouser waistbands, including a mounting plate 10, a fixing member 20, a first connecting plate 30, a second connecting plate 40, a first carrier plate 50, and a second carrier plate 60. The mounting plate 10 is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate 10 is connected to the fixing member 20. The first connecting plate 30 is slidably connected to the fixing member 20. One end of the second connecting plate 40 is connected to the first connecting plate 30. The first carrier plate 50 is bent backward to form a groove. The second connecting plate 40 is connected to the first carrier plate 50, and the top of the second connecting plate 40... A gap exists between the end of the garment piece slot 70 and the first carrier plate 50, forming a garment piece slot 70. The garment piece slot 70 is used to press and guide the waistband fabric during sewing. The second carrier plate 60 is connected to the first carrier plate 50, and the second carrier plate 60 is bent backward to form an elastic band slot 80. The elastic band slot 80 is used to guide and restrict the starting sewing position of the elastic band. By setting the elastic band slot 80 and the garment piece slot 70, the elastic band and the waistband fabric are precisely positioned respectively, preventing misalignment during sewing. The structure is compact, easy to install, and can be quickly adapted to existing sewing machines. It significantly improves sewing speed, reduces rework rate, reduces costs, is easy for employees to master, and is suitable for large-scale production.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An elastic band limiting mechanism for sewing trouser waistbands, characterized in that: The sewing machine includes a mounting plate (10), a fastener (20), a first connecting plate (30), a second connecting plate (40), a first carrier plate (50), and a second carrier plate (60). The mounting plate (10) is fixedly mounted on the needle plate of the sewing machine base by bolts. The upper surface of the mounting plate (10) is connected to the fastener (20). The first connecting plate (30) is slidably connected to the fastener (20). One end of the second connecting plate (40) is connected to the first connecting plate (30). The first carrier plate (50) is rearward. The second connecting plate (40) is connected to the first carrier plate (50) and there is a gap between the top of the second connecting plate (40) and the first carrier plate (50) to form a garment piece slot (70). The garment piece slot (70) is used to press and guide the waistband fabric during the sewing process. The second carrier plate (60) is connected to the first carrier plate (50). The second carrier plate (60) is bent backward to form an elastic band slot (80). The elastic band slot (80) is used to guide and limit the starting sewing position of the elastic band.

2. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: The elastic band groove (80) is one of a V-shaped, U-shaped, or wedge-shaped opening groove.

3. The elastic band limiting mechanism for sewing trouser waistbands according to claim 2, characterized in that: The groove width of the elastic band groove (80) is 2-4mm.

4. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: The width of the garment piece slot (70) is 1-3mm.

5. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: The fastener (20) is provided with a first waist-shaped hole (90) for adjusting the front and rear positions of the first carrier plate (50) and for fixing it by a first limiting screw (100).

6. The elastic band limiting mechanism for sewing trouser waistbands according to claim 5, characterized in that: The first connecting plate (30) is provided with a second waist-shaped hole (110) for adjusting the left and right positions of the first carrier plate (50) and fixing it by a second limiting screw (120).

7. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: The first connecting plate (30) and the second connecting plate (40) are integrally formed and are both made of stainless steel.

8. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: The first carrier plate (50) and the second carrier plate (60) are integrally formed, and both the first carrier plate (50) and the second carrier plate (60) are made of transparent materials.

9. The elastic band limiting mechanism for sewing trouser waistbands according to claim 1, characterized in that: There is a gap between the first carrier plate (50) and the mounting plate (10).