A fly sewing process and equipment capable of improving the appearance and quality of finished products
The automated and integrated operation of the trouser loop sewing equipment has solved the problems of high difficulty and slow speed in the trouser loop sewing process, and has achieved high-efficiency and high-quality trouser loop production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG GIUSEPPE GARMENT
- Filing Date
- 2022-10-28
- Publication Date
- 2026-06-23
Smart Images
Figure CN115897084B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of garment processing technology, and in particular to a trouser loop sewing process and equipment that can improve the appearance and quality of finished products. Background Technology
[0002] In the clothing industry, trouser loops serve the functional purposes of neatness, aesthetics, and durability. There are three methods for sewing trouser loops: 1. Blind stitching; 2. Machine sewing; 3. Overlock sewing. Machine sewing: The fabric is placed on the trouser loop machine, and the loop is finished with a reverse overlock edge. The disadvantage of this method is that the reverse overlock edge has many threads, which are prone to breakage; if one thread breaks, all the chain threads will fall off. Overlock sewing: The fabric is placed on an overlock machine, and the loop is finished with an overlock edge. The disadvantage of this method is that the overlock edge on the reverse side has a single thread that is easily broken or comes loose; if one thread breaks, all the threads will fall off, resulting in a weak seal. Concealed stitching method: The fabric is sewn into a cylinder about 0.8 cm wide. Then the cylinder is turned from the wrong side to the right side, similar to the process of turning chicken intestines. Turning the trouser loops is difficult and slow, but the resulting trouser loops are beautiful, durable, of good quality, and washable without falling off.
[0003] In the existing technology, in order to improve the product quality and appearance of high-end clothing, the blind stitching method is used to sew trouser loops. During the sewing process, the cylindrical trouser loops need to be turned from the wrong side to the right side, which makes it difficult and slow to turn the trouser loops, resulting in low production efficiency and making it difficult to meet the current clothing processing efficiency. Therefore, there is an urgent need for an automatic trouser loop manufacturing integrated equipment and its sewing process. Summary of the Invention
[0004] The main objective of this invention is to provide a trouser loop sewing process and equipment that can improve the aesthetics and quality of finished products, effectively solving the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a trouser loop sewing device, comprising: a processing table, and a flatbed sewing machine and a double-needle sewing machine mounted on the processing table, and further comprising:
[0006] The flipping mechanism includes a material cylinder connected to the processing table and a trouser loop pull tube installed on a flat car. A flipping center tube is installed in the middle of the trouser loop pull tube. A mounting base is provided in the middle of the processing table. A material passage groove is provided through the top of the mounting base. A heating component and a dragging component are installed in sequence in the material passage groove.
[0007] The sewing and cutting mechanism includes a trouser loop positioning cylinder installed at the feed end of the double-needle sewing machine and a shear installed at the output end of the double-needle sewing machine.
[0008] Preferably, the trouser loop pull tube includes a guide plate, the upper end of which has a material guide groove, and the flipping center tube is installed in the material guide groove of the guide plate.
[0009] Preferably, the guide plate is detachably connected to the flatcar, and a serpentine guide frame is installed at the feed end of the guide plate.
[0010] Preferably, the heating component is installed at the feed end of the feed chute, and the heating component includes two heating elements, which are respectively installed on both sides of the feed chute.
[0011] Preferably, the dragging assembly is installed at the discharge end of the feed chute. The dragging assembly includes guide wheels and drag wheels respectively installed on both sides of the feed chute, and a drive motor is installed at the bottom of the drag wheel.
[0012] Preferably, the mounting base has several heat dissipation holes through the feed chute, and the mounting base is equipped with a control panel for controlling the operation of the drive motor and heating element.
[0013] Preferably, an infrared sensor switch is installed between the mounting base and the double needle machine to control the operation of the corresponding flatbed carriage, double needle machine, dragging assembly, and heating assembly based on the collected sensor signals.
[0014] Preferably, the cutter includes a connecting seat and a cutting blade, the connecting seat being connected to the double-needle machine, and the cutting blade being vertically slidably connected to the connecting seat.
[0015] Preferably, a control handle is connected to the shearing blade, the control handle has an arc-shaped structure, and a receiving box is provided on the side of the processing table near the shearing device.
[0016] A preferred method for sewing trouser loops that improves the appearance and quality of the finished product includes the following steps:
[0017] Step 1: Start the flatbed machine and pass the fabric on the material cylinder through the trouser loop pull tube. The flatbed machine will then sew the fabric through the trouser loop pull tube with a hidden thread.
[0018] Step 2: Pull the sewn fabric back through the center tube of the trouser loop to turn the trouser loop right side out.
[0019] Step 3: The trouser loop moves through the feed chute, is heated and shaped by the heating component, and is then pulled forward by the dragging component;
[0020] Step 4: After the trouser loop passes through the trouser loop positioning tube, it is stitched by a double needle machine. The stitched trouser loop is then cut to the required length by a cutter, and the operation is complete.
[0021] Compared with traditional technologies, the beneficial effects of this invention are:
[0022] 1. This automatic trouser loop manufacturing integrated equipment and its sewing process integrate sewing, turning, shaping, pressing, and cutting into one integrated machine. The automated equipment is user-friendly, which can reduce labor intensity, and intelligent, which can reduce the skill requirements of operators. On the basis of improving the appearance of finished products, improving quality, and ensuring output, it can achieve high-quality and high-efficiency work.
[0023] 2. The automatic trouser loop manufacturing integrated equipment and its sewing process: a material cylinder with fabric is installed on the processing table. The fabric is located at the flatbed where the trouser loop pull tube passes through. The flatbed sews the fabric through the trouser loop pull tube with a hidden thread. The sewn fabric is then pulled back from the turning center tube of the trouser loop pull tube, turning the trouser loop to the right side. The fabric is then dragged by a set dragging component, so that the sewn trouser loop is pulled out from the turning center tube and passes through the heating component in sequence, where it is heated and shaped.
[0024] 3. The automatic trouser loop manufacturing integrated equipment and its sewing process: the shaped trouser loop passes through the trouser loop positioning tube, which facilitates the movement of the trouser loop to the processing operating table of the double needle machine, and is then stitched by the double needle machine. After stitching, the trouser loop is cut by a shear installed at the output end of the double needle machine to the required length. The shear can be an automatic shearing device for automatic quantitative cutting.
[0025] 4. The automatic trouser loop manufacturing integrated equipment and its sewing process: The trouser loop moves through the feed chute, is clamped in the middle by the drag wheel and guide wheel, and is driven by the drive motor to rotate the drag wheel, thereby pushing the trouser loop to move. The sewn trouser loop is gradually pulled out through the turning center tube and enters the heating component. It passes between two heating plates, and both sides of the trouser loop are heated evenly to facilitate shaping. The heated trouser loop is dragged by the drag wheel and guide wheel, which can both pull the trouser loop and squeeze it flat, thereby improving the overall processing efficiency and processing quality. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0027] Figure 2 This is a schematic diagram of the trouser loop pull tab structure of the present invention;
[0028] Figure 3 This is a schematic diagram of the material conveying trough structure of the present invention;
[0029] Figure 4 This is a schematic diagram of the heating component structure of the present invention;
[0030] Figure 5 This is a schematic diagram of the drag-and-drop component structure of the present invention.
[0031] In the diagram: 1. Processing table; 2. Flatbed car; 3. Double needle machine; 4. Material cylinder; 5. Trouser loop pull tube; 51. Serpentine guide frame; 52. Guide plate; 53. Turning center tube; 6. Mounting base; 7. Material feed chute; 8. Trouser loop positioning cylinder; 9. Control handle; 10. Connecting base; 11. Shearing blade; 12. Material receiving box; 13. Heating component; 14. Dragging component; 15. Infrared sensor switch. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.
[0033] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 limiting this invention.
[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0035] Example 1, see Figure 1 As shown, a trouser loop sewing device includes: a processing table 1, a flatbed sewing machine 2 and a double-needle sewing machine 3 mounted on the processing table 1, and further includes:
[0036] The flipping mechanism includes a material cylinder 4 connected to the processing table 1 and a trouser loop pull tube 5 installed on the flat car 2. A flipping center tube 53 is installed in the middle of the trouser loop pull tube 5. A mounting seat 6 is provided in the middle of the processing table 1. A material passage trough 7 is provided through the top of the mounting seat 6. A heating component 13 and a dragging component 14 are installed in sequence in the material passage trough 7.
[0037] A fabric tube is installed on the processing table. The fabric is located at the flatbed trouser loop pull tube 5 and passes through it. The flatbed trouser loop 2 sews the fabric through the trouser loop pull tube 5 with a hidden thread. The sewn fabric is then pulled back through the turning center tube 53 of the trouser loop pull tube 5. The trouser loop is turned to the right side. The fabric is dragged by the set dragging component, so that the sewn trouser loop is pulled out from the turning center tube 53 and passes through the heating component in sequence. It is heated and shaped by the heating component 13.
[0038] The sewing and cutting mechanism includes a trouser loop positioning cylinder 8 installed at the feed end of the double needle machine 3 and a cutter installed at the output end of the double needle machine 3.
[0039] After shaping, the trouser loops pass through the trouser loop positioning cylinder 8, making it easy for the trouser loops to move to the processing operating table of the double needle machine 3. The double needle machine 3 then performs quilting. After quilting, the trouser loops are cut by a shear installed at the output end of the double needle machine 3 to the required length. The shear can be an automatic shearing device for automatic quantitative cutting.
[0040] The aforementioned automated trouser loop manufacturing integrated equipment processes the fabric, integrating sewing, turning, shaping, pressing, and cutting into one unit. The automated equipment is user-friendly, reducing labor intensity, and intelligent, lowering the skill requirements for operators. It achieves high-quality and high-efficiency work while improving the aesthetics of finished products, increasing quality, and ensuring output.
[0041] Additionally, see Figure 2 As shown, the trouser loop pull tube 5 includes a guide plate 52, the upper end of the guide plate 52 is provided with a material guide groove, the flipping center tube 53 is installed in the material guide groove of the guide plate 52, the guide plate 52 is detachably connected to the flat car 2, and a serpentine guide frame 51 is installed at the feeding end of the guide plate 52.
[0042] The trouser loop pull tube 5 is detachably connected to the flatbed sewing machine via the guide plate 52, which facilitates disassembly, installation and use. It can be flexibly replaced when processing trouser loops of different sizes. The fabric is passed through the serpentine guide frame 51, which can stretch and tighten the fabric and unfold it to avoid wrinkles and improve product quality. The fabric passes through the guide groove and is pulled out through the middle of the turning center tube 53 after being sewn on the flatbed sewing machine, thus completing the turning function. The processing is very convenient.
[0043] To achieve rapid shaping of the processed trouser loops and to stably pull them out through the central tube of the trouser loop pull tube, the following embodiment is provided to solve the above-mentioned technical problems:
[0044] Example 2, see Figure 3-5As shown, in this embodiment, the heating component 13 is installed at the feeding end of the feed trough 7. The heating component 13 includes two heating elements, which are respectively installed on both sides of the feed trough 7. The dragging component 14 is installed at the discharging end of the feed trough 7. The dragging component 14 includes guide wheels and drag wheels respectively installed on both sides of the feed trough 7. A drive motor is installed at the bottom of the drag wheel.
[0045] The trouser loop moves through the feed chute 7, is clamped in the middle by the drag wheel and guide wheel, and is driven by the drive motor to rotate the drag wheel, thereby pushing the trouser loop to move. The sewn trouser loop is gradually pulled out through the turning center tube 53 and enters the heating component. It passes between two heating plates, and both sides of the trouser loop are heated evenly to facilitate shaping. The heated trouser loop is dragged by the drag wheel and guide wheel, which can both pull the trouser loop and squeeze it flat, improving the overall processing efficiency and processing quality.
[0046] Additionally, see Figure 3-5 As shown, in this embodiment, the mounting base 6 has several heat dissipation holes through the material feed trough 7. The mounting base 6 is equipped with a control panel for controlling the operation of the drive motor and the heating element. An infrared sensor switch 15 is installed between the mounting base 6 and the double needle machine 3 for controlling the operation of the corresponding flatbed 2, double needle machine 3, dragging assembly 14 and heating assembly 13 according to the collected sensor signals.
[0047] When the trouser loop passes the infrared sensor switch, it receives the sensor signal and starts the flatbed sewing machine, the dragging component, and the heating component to process the trouser loop and move it. When the infrared sensor switch does not detect the trouser loop, it starts the double needle machine to perform quilting on the trouser loop that has been processed by the flatbed sewing machine. At this time, the flatbed sewing machine 2, the dragging component 14, and the heating component stop operating.
[0048] See Figure 1 As shown, in this embodiment, the shearer includes a connecting seat 10 and a shearing blade 11. The connecting seat 10 is connected to the double needle machine 3. The shearing blade 11 is vertically slidably connected to the connecting seat 10. A control handle 9 is connected to the shearing blade 11. The control handle 9 has an arc-shaped structure. A receiving box 12 is provided on the side of the processing table 1 near the shearer.
[0049] The control handle moves the shearing blade up and down, cutting the bottom loops to the specified length. The arc-shaped control handle facilitates operation. Connecting the connecting seat to the double-needle machine improves the overall integrity of the equipment, making it easier to move and install, reducing assembly difficulty. After the shearing automatically cuts the required length of loops, the loops fall into the collection box for collection.
[0050] Working principle: Start the flatbed trolley 2, and pass the fabric on the material cylinder 4 through the trouser loop pull tube 5. The flatbed trolley 2 sews the fabric through the trouser loop pull tube 5 with a hidden thread. The sewn fabric is then pulled back through the turning center tube 53 of the trouser loop pull tube 5, and the trouser loop is turned to the right side. The trouser loop moves through the material feed trough 7 and is heated and shaped by the heating component 13. The trouser loop is then pulled forward by the drag component 14. After passing through the trouser loop positioning tube 8, the trouser loop is stitched by the double needle machine 3. After stitching, the trouser loop is cut to the required length by the shearer.
[0051] A trouser loop sewing process that improves the appearance and quality of the finished product includes the following steps:
[0052] Step 1: Start the flatbed machine 2, pass the fabric on the material cylinder 4 through the trouser loop pull tube 5, and the flatbed machine 2 will sew the fabric through the trouser loop pull tube 5 with a hidden thread.
[0053] Step 2: Pull the sewn fabric back through the center tube 53 of the trouser loop pull tube 5, and turn the trouser loop right side out.
[0054] Step 3: The trouser loop moves through the feed chute 7, is heated and shaped by the heating component 13, and is then pulled forward by the dragging component 14;
[0055] Step 4: After the trouser loop passes through the trouser loop positioning tube 8, it is stitched by the double needle machine 3. After stitching, the trouser loop is cut to the required length by the cutter, and the operation is completed.
[0056] The fabric is processed using the sewing process of the aforementioned automated trouser loop manufacturing integrated equipment. The entire process, from sewing, turning, shaping, pressing, and cutting, is integrated into one machine. The automated equipment is user-friendly, reducing labor intensity, and intelligent, reducing the skill requirements for operators. It achieves high-quality and high-efficiency work while improving the aesthetics of finished products, increasing quality, and ensuring output.
[0057] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A trouser loop sewing machine, comprising: The processing table (1), the flatbed sewing machine (2) mounted on the processing table (1), and the double needle machine (3) are characterized in that: they also include: The flipping mechanism includes a material cylinder (4) connected to the processing table (1) and a trouser loop pull tube (5) installed on the flat car (2). A flipping center tube (53) is installed in the middle of the trouser loop pull tube (5). A mounting seat (6) is provided in the middle of the processing table (1). A material passage groove (7) is provided through the top of the mounting seat (6). A heating component (13) and a dragging component (14) are installed in sequence in the material passage groove (7). The sewing and cutting mechanism includes a trouser loop positioning cylinder (8) installed at the feed end of the double needle machine (3) and a shear installed at the discharge end of the double needle machine (3); The heating assembly (13) is installed at the feed end of the feed trough (7). The heating assembly (13) includes two heating elements, which are respectively installed on both sides of the feed trough (7). The dragging assembly (14) is installed at the discharge end of the feed chute (7). The dragging assembly (14) includes guide wheels and drag wheels installed on both sides of the feed chute (7). A drive motor is installed at the bottom of the drag wheel. The mounting base (6) is equipped with a control panel for controlling the operation of the drive motor and heating element.
2. The trouser loop sewing equipment according to claim 1, characterized in that: The trouser loop pull tube (5) includes a guide plate (52), and a material guide groove is provided at the upper end of the guide plate (52). The flipping center tube (53) is installed in the material guide groove of the guide plate (52).
3. The trouser loop sewing equipment according to claim 2, characterized in that: The guide plate (52) is detachably connected to the flat car (2), and a serpentine guide frame (51) is installed at the feed end of the guide plate (52).
4. The trouser loop sewing equipment according to claim 3, characterized in that: An infrared sensor switch (15) is installed between the mounting base (6) and the double needle machine (3) to control the operation of the corresponding flatcar (2), double needle machine (3), drag assembly (14) and heating assembly (13) based on the collected sensor signals.
5. The trouser loop sewing equipment according to claim 1, characterized in that: The cutter includes a connecting seat (10) and a cutting blade (11). The connecting seat (10) is connected to the double needle machine (3), and the cutting blade (11) is vertically slidably connected to the connecting seat (10).
6. The trouser loop sewing equipment according to claim 5, characterized in that: A control handle (9) is connected to the shearing blade (11). The control handle (9) has an arc-shaped structure. A receiving box (12) is set on the side of the processing table (1) near the shearer.
7. A pant loop sewing process that improves the appearance and quality of finished products, using the pant loop sewing equipment as described in any one of claims 1-6, characterized in that: Includes the following steps: Step 1: Start the flatbed machine (2), pass the fabric on the material cylinder (4) through the trouser loop pull tube (5), and the flatbed machine (2) sews the fabric that has passed through the trouser loop pull tube (5) with a hidden thread; Step 2: Pull the sewn fabric back through the turning center tube (53) of the trouser loop pull tube (5) and turn the trouser loop right side out. Step 3: The trouser loop moves through the feed trough (7), is heated and shaped by the heating component (13), and is then pulled forward by the dragging component (14); Step 4: After the trouser loop passes through the trouser loop positioning tube (8), it is stitched by the double needle machine (3). After stitching, the trouser loop is cut to the required length by the cutter, and the operation is completed.