Double-needle sewing machine for cloth processing

Abstract

The utility model belongs to the technical field of cloth processing, and particularly relates to a double-needle sewing machine for cloth processing, which comprises a sewing machine body, a mounting block is arranged on the sewing machine body, two sewing needles are mounted on the mounting block, a rectangular groove is formed in the mounting block, and an elastic moving component is arranged in the rectangular groove. A protection frame moving in the rectangular groove is arranged on the elastic moving assembly, two sets of through grooves are formed in the bottom face of the protection frame, tensioning assemblies are arranged in the through grooves, the elastic moving assembly comprises sliding grooves formed in the four side walls of the rectangular groove, fixing shafts are arranged in the sliding grooves, and the fixing shafts are sleeved with sliding blocks and springs; the top of the sliding block is connected with the spring, and one side of the sliding block is connected with the protective frame. According to the device, the risk that operators are injured is greatly reduced, safety accidents are reduced, meanwhile, cloth can be tensioned, wrinkles of the cloth are prevented, and the sewing quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fabric processing technology, and specifically relates to a double-needle sewing machine for fabric processing. Background Technology

[0002] In the modern garment manufacturing and fabric processing industry, double-needle sewing machines play a vital role and are indispensable key equipment. With the booming development of the global garment industry and the ever-increasing demands for garment quality, the efficiency and practicality of double-needle sewing machines have become increasingly prominent. They can simultaneously sew two parallel threads in one operation, which not only greatly improves production efficiency but also enhances the durability and aesthetics of sewn products, making the stitches more even, strong, and beautiful. This meets the dual needs of garment production for exquisite details and high-efficiency production, and is widely used in the processing of various garments, covering a wide range of materials from lightweight to heavyweight fabrics.

[0003] However, current double-needle sewing machines still have some problems that urgently need to be solved in actual use. Safety hazards are among the most prominent. The sewing machine needles are extremely sharp, and during high-speed sewing operations, operators can easily prick their fingers if they are even slightly careless. The risk of injury increases significantly when workers are fatigued from prolonged work or are not concentrating. Furthermore, sewing needles are prone to breaking, and broken needles can easily scatter, causing accidents.

[0004] Fabric wrinkles are also a significant issue. During sewing, fabric is prone to wrinkling, which severely impacts the quality and finish of the sewing. The causes of this problem are complex, possibly due to the inherent characteristics of the fabric itself, such as elastic fabrics easily deforming under external force; or it could be due to variations in the sewing process, such as an unstable feed mechanism or uneven presser foot pressure. Wrinkles not only reduce the product's aesthetic appeal but can also cause problems in subsequent processing steps, increasing the defect rate and raising production costs.

[0005] To address this, we propose a double-needle sewing machine for fabric processing. This device not only greatly reduces the risk of operator injury and minimizes the occurrence of safety accidents, but also tightens the fabric to prevent wrinkles and improves sewing quality. Utility Model Content

[0006] The purpose of this invention is to provide a double-needle sewing machine for fabric processing. This device not only greatly reduces the risk of operator injury and the occurrence of safety accidents, but also tightens the fabric to prevent wrinkles and improves the quality of sewing.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] A double-needle sewing machine for fabric processing includes a sewing machine body, a mounting block on the sewing machine body, two sewing needles mounted on the mounting block, and a rectangular groove formed on the mounting block. An elastic moving component is disposed inside the rectangular groove, and a protective frame that moves within the rectangular groove is mounted on the elastic moving component. The bottom surface of the protective frame...

[0009] Two sets of through slots are provided, and tensioning components are installed inside the through slots.

[0010] Furthermore, the elastic moving component includes sliding grooves formed on the four side walls of the rectangular groove, a fixed shaft is provided inside the sliding groove, a slider and a spring are sleeved on the fixed shaft, the top of the slider is connected to the spring, and one side of the slider is connected to the protective frame.

[0011] Furthermore, the groove matches the slider.

[0012] Furthermore, the tensioning assembly includes an inclined groove formed inside the through groove, a rotating shaft slidably disposed inside the inclined groove, and a pressure roller mounted on the rotating shaft.

[0013] Furthermore, the two sets of inclined grooves are symmetrically arranged, and the inclined grooves are matched with the rotating shaft.

[0014] Furthermore, the protective frame is provided with a first locking hole, and the mounting block is provided with a second locking hole, with a locking rod provided inside the second locking hole and the first locking hole.

[0015] The technical effects achieved by this utility model are as follows:

[0016] When the sewing machine is started, the fabric is placed on the worktable and pushed forward. The mounting block drives the sewing needle downwards under the motor's power. First, the protective frame contacts the fabric. Through an elastic component, the protective frame moves upwards within a rectangular groove, allowing the sewing needle to sew. As the needle moves upwards, the elastic component returns the protective frame to its original position, thus shielding the needle and preventing it from breaking and flying during fabric handling or sewing operations. This protects the operator and improves safety. Simultaneously, when the protective shell contacts the fabric, the tensioning component moves to both sides, pressing the fabric to prevent wrinkles. This device not only significantly reduces the risk of operator injury and accidents but also tightens the fabric to prevent wrinkles, improving sewing quality. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the corner mounting block of this utility model;

[0019] Figure 3 This is a cross-sectional view of the mounting block of this utility model;

[0020] Figure 4 This is a front view of the mounting block of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the tensioning component of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Sewing machine body; 2. Mounting block; 3. Sewing needle; 4. Rectangular groove; 5. Protective frame; 6. Through groove; 7. Slide groove;

[0024] 8. Fixed shaft; 9. Slider; 10. Spring; 11. Inclined groove; 12. Rotating shaft; 13. Pressure roller; 14. Locking rod. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not constitute a comprehensive description of it.

[0026] The scope of protection of this utility model is strictly limited.

[0027] like Figures 1-5 As shown, the technical solution adopted by this utility model is as follows: A double-needle sewing machine for fabric processing includes a sewing machine body 1, a mounting block 2 is provided on the sewing machine body 1, two sewing needles 3 are installed on the mounting block 2, and a rectangular groove 4 is provided on the mounting block 2. An elastic moving component is provided inside the rectangular groove 4, and a protective frame 5 that moves inside the rectangular groove 4 is provided on the elastic moving component. Two sets of through grooves 6 are provided on the bottom surface of the protective frame 5, and a tensioning component is provided inside the through grooves 6.

[0028] The elastic moving component includes slide grooves 7 on the four side walls of the rectangular groove 4. A fixed shaft 8 is provided inside the slide groove 7. A slider 9 and a spring 10 are sleeved on the fixed shaft 8. The top of the slider 9 is connected to the spring 10, and one side of the slider 9 is connected to the protective frame 5. When the protective frame 5 comes into contact with the fabric, the protective frame 5 drives the slider 9 to move on the fixed shaft 8 and squeeze the spring 10, thereby causing the protective frame 5 to enter the rectangular groove 4 for operation. When the sewing needle 3 moves upward, the protective frame 5 returns to its original position under the elastic action of the spring 10, thereby blocking the sewing needle 3 and protecting the operator from broken needles flying when the operator is handling the fabric or when the sewing needle 3 is working.

[0029] Furthermore, the slide groove 7 is matched with the slider 9, which means that the slider 9 can move smoothly inside the slide groove 7 without jamming.

[0030] Meanwhile, the protective frame 5 is made of transparent and high-strength materials, such as acrylic sheets, which not only makes it easy for people to observe, but also has a high-strength effect.

[0031] like Figure 4 As shown, the tensioning assembly includes an inclined groove 11 opened inside the through groove 6. A rotating shaft 12 is slidably arranged inside the inclined groove 11, and a pressure roller 13 is installed on the rotating shaft 12. When the pressure roller 13 contacts the fabric, the pressure roller 13 is subjected to pressure, which drives the rotating shaft 12 to move inside the inclined groove 11, thereby forming a pulling force. This pulling force tightens the fabric from both sides, preventing the fabric from wrinkling and improving the quality of sewing.

[0032] The two sets of inclined grooves 11 are symmetrically arranged, and the inclined grooves 11 are matched with the rotating shaft 12. Matching means that the rotating shaft 12 can move smoothly in the inclined grooves 11 without jamming.

[0033] The protective frame 5 has a first locking hole, and the mounting block 2 has a second locking hole. The second locking hole and the first locking hole are equipped with a locking rod 14. When it is necessary to operate the sewing needle 3, the protective frame 5 moves upward so that the first locking hole and the second locking hole are aligned, thereby allowing the locking rod 14 to be inserted, which facilitates the replacement and maintenance of the sewing needle 3.

[0034] The working principle of this utility model is as follows: When the sewing machine is started, the fabric is placed on the worktable and pushed forward. The mounting block 2 drives the sewing needle 3 to move downward under the drive of the motor. First, the protective frame 5 contacts the fabric. Through the elastic component, the protective frame 5 moves upward inside the rectangular groove 4, thus entering the rectangular groove 4. The sewing needle 3 can then sew the fabric. When the sewing needle 3 moves upward, the protective frame 5 is returned to its original position by the elastic moving component, thereby covering the sewing needle 3. This prevents the operator from experiencing needle breakage and splashing when handling the fabric or when the sewing needle 3 is working, thus protecting the operator and improving the safety factor. At the same time, the tensioning component tightens when the protective shell contacts the fabric.

[0035] The components move to both sides, thus pressing the fabric to prevent wrinkles. This device not only greatly reduces the risk of operator injury and minimizes accidents, but also tightens the fabric to prevent wrinkles and improve sewing quality.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A double-needle sewing machine for fabric processing, comprising a sewing machine body (1), characterized in that: The sewing machine body (1) is provided with an installation block (2), on which two sewing needles (3) are installed. A rectangular groove (4) is provided on the installation block (2). An elastic moving component is provided inside the rectangular groove (4). A protective frame (5) that moves inside the rectangular groove (4) is provided on the elastic moving component. Two sets of through grooves (6) are provided on the bottom surface of the protective frame (5). A tensioning component is provided inside the through grooves (6).

2. The double-needle sewing machine for fabric processing according to claim 1, characterized in that: The elastic moving component includes a slide groove (7) opened on the four side walls of the rectangular groove (4), a fixed shaft (8) is provided inside the slide groove (7), a slider (9) and a spring (10) are sleeved on the fixed shaft (8), the top of the slider (9) is connected to the spring (10), and one side of the slider (9) is connected to the protective frame (5).

3. A double-needle sewing machine for fabric processing according to claim 2, characterized in that: The groove (7) matches the slider (9).

4. A double-needle sewing machine for fabric processing according to claim 1, characterized in that: The tensioning assembly includes an inclined groove (11) formed inside the through groove (6), a rotating shaft (12) is slidably disposed inside the inclined groove (11), and a pressure roller (13) is mounted on the rotating shaft (12).

5. A double-needle sewing machine for fabric processing according to claim 4, characterized in that: The two sets of inclined grooves (11) are symmetrically arranged, and the inclined grooves (11) are matched with the rotating shaft (12).

6. A double-needle sewing machine for fabric processing according to claim 1, characterized in that: The protective frame (5) has a first locking hole, and the mounting block (2) has a second locking hole. The second locking hole and the first locking hole are provided with locking rods (14).

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