Transverse edge sewing device for thin quilt

Abstract

The utility model discloses a transverse edge sewing device of a thin quilt, which comprises a first rack, a cloth opening roller, a raw material traction unit connected with the first rack, and a welding sewing unit for stamping transverse edges of a plurality of layers of raw materials and welding the raw materials in the stamping process, the welding and sewing unit is connected with the first machine frame and located on the downstream portion of the cloth opening roller, and the welding and sewing unit is further located on the upstream portion of the raw material traction unit. The sewing device is simple in structure and low in cost.

Description

Technical Field

[0001] This utility model relates to quilt production equipment, specifically to a transverse edge sewing device for a thin quilt. Background Technology

[0002] In daily life, quilts are a common household item. Thin quilts (such as air conditioning quilts) are one type of quilt. Thin quilts are mainly made of one layer of cotton and two layers of fabric sewn together on all four sides.

[0003] In the early days, thin quilts were mostly processed manually by operating specific equipment in separate steps. This method not only required a large number of workers, resulting in high labor costs, but also had low overall production efficiency.

[0004] With the advancement of technology, mechanical equipment has been adopted to produce thin quilts. The specific production process is as follows: the first sewing equipment is used to fix the fabric and cotton material. That is, the upper fabric, cotton material and the lower fabric are transported to the first sewing equipment. The first sewing equipment sews the middle part of the upper fabric, cotton material and the lower fabric to fix these three layers of raw materials and form a semi-finished product. The semi-finished product is then sewn by the horizontal sewing mechanism and the vertical sewing mechanism respectively and then cut to obtain the finished thin quilt.

[0005] A known transverse sewing mechanism includes two transverse sewing machines arranged opposite each other, with a pressure roller structure on one side of each transverse sewing machine. The pressure roller structure includes a pressure roller bracket, on which two pressure roller assemblies are arranged opposite each other. Each pressure roller assembly includes two first pressure rollers arranged opposite each other, and two second pressure rollers arranged below the first pressure rollers. The first and second pressure rollers are connected by a timing belt. The timing belt also has two third pressure rollers arranged opposite each other, which are mounted on the pressure roller bracket and located between the two second pressure rollers.

[0006] The aforementioned transverse sewing mechanism uses the second and third pressure rollers to press the cotton material into the seam when sewing cotton and two layers of fabric, preventing the cotton from shifting due to its softness and thickness. Therefore, this transverse sewing mechanism requires dedicated second and third pressure rollers to press the fabric and cotton together, resulting in a complex equipment structure and increased costs. Utility Model Content

[0007] This invention provides a transverse edge sewing device for a thin quilt. The sewing device of this invention is not only simple in structure, but also low in cost.

[0008] The technical solutions to the above problems are as follows:

[0009] The transverse seam sewing device for a thin quilt includes a first frame, a fabric opening roller, and a raw material traction unit. The raw material traction unit is connected to the first frame, and the fabric opening roller is also connected to the first frame. It further includes:

[0010] A welding and sewing unit is formed by stamping the transverse edge of the multi-layer raw material and welding the raw material during the stamping process. The welding and sewing unit is connected to the first frame and is located downstream of the opening roller and upstream of the raw material traction unit.

[0011] After the raw material passes over the opening roller, it passes through the welding and sewing unit and the raw material traction unit. The drive assembly is then activated. Because the raw material is held by the upper and lower clamping rollers, when sewing is required, the first and second lifting and lowering drives operate. The first drive drives the first punch head downwards, and the second drive drives the second punch head downwards. The raw material is pressed between the first punch head and the first ultrasonic welder, and also between the second punch head and the second ultrasonic welder. The first and second ultrasonic welders perform a welding action on the raw material. The raw material between the first punch head and the first ultrasonic welder is welded, and the raw material between the second punch head and the second ultrasonic welder is welded, thus forming two transverse sewing lines. This invention achieves welding of the raw material during the punching process, simplifying the equipment structure, saving time, and improving production efficiency. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of the transverse edge sewing device for a thin quilt in the first direction.

[0013] Figure 2 A three-dimensional structural diagram of the transverse edge sewing device for a thin quilt in the second direction.

[0014] Figure 3 A schematic diagram showing the part hidden by the horizontal seam stitching device of the thin quilt.

[0015] Figure 4 This is a schematic diagram showing the connection between the first and second lower crossbeams and the first frame.

[0016] Figure 5 This is a structural diagram of the raw material traction unit.

[0017] Figure 6 This is a partial structural diagram of the first stamping head.

[0018] Figure 7 for Figure 3 Enlarged view of part P in the image.

[0019] Labels in the attached diagram:

[0020] First frame 1 connected to the following components: opening roller 2, first support 3, first bearing assembly 4, second bearing assembly 5, upper clamping roller 6, lower clamping roller 7, drive assembly 8, lifting drive 9, first lower crossbeam 10, first column 11, first upper crossbeam 12, first lifting drive 13, first punch head 14, first tooth 14a, first ultrasonic welder 15, second lower crossbeam 16, second column 17, second upper crossbeam 18, second lifting drive 19, second punch head 20, second ultrasonic welder 21, support 22, first connecting rod 23, handwheel 24, first bevel gear 25, second bevel gear 26, and screw 27. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components, unless otherwise explicitly limited.

[0025] like Figures 1 to 7 The transverse edge sewing device for thin quilts of this utility model includes a first frame 1, a fabric opening roller 2, a raw material traction unit, and a welding and sewing unit. The following is a detailed description of each part and the relationship between them.

[0026] The raw material traction unit is connected to the first frame 1, and the fabric opening roller 2 is also connected to the first frame 1. The raw material traction unit includes a first support 3, a first bearing assembly 4, a second bearing assembly 5, an upper pinch roller 6, a lower pinch roller 7, and a drive assembly 8. The first bearing assembly 4 and the second bearing assembly 5 are respectively mounted on the first support 3, with the first bearing assembly 4 located above the second bearing assembly 5. The upper pinch roller 6 is connected to the first bearing assembly 4, and the lower pinch roller 7 is connected to the second bearing assembly 5. The drive assembly 8 is connected to either the upper pinch roller 6 or the lower pinch roller 7. In this embodiment, the drive assembly 8 consists of a motor and a belt drive mechanism. The output end of the motor is connected to one of the pulleys of the belt drive mechanism, and the other pulley is connected to the lower pinch roller 7. The belt is connected to both pulleys.

[0027] The raw material traction unit also includes a lifting driver 9 for adjusting the distance between the upper pinch roller 6 and the lower pinch roller 7. The lifting driver 9 is connected to the first bearing assembly 4, which is slidably engaged with the first bracket 3. The drive assembly 8 is connected to the lower pinch roller 7. The lifting driver 9 is preferably a cylinder. The distance between the upper pinch roller 6 and the lower pinch roller 7 is adjusted by the lifting driver 9 to accommodate the traction of thin blankets of different thicknesses.

[0028] The welding and sewing unit punches the transverse edge of the multi-layer raw material and welds the raw material during the punching process. The welding and sewing unit is connected to the first frame 1 and is located downstream of the opening roller 2, and is also located upstream of the raw material traction unit.

[0029] The welding and stitching unit includes a first welding and stitching unit, which includes a first lower crossbeam 10, a first column 11, a first upper crossbeam 12, a first lifting and lowering actuator 13, a first stamping head 14, and a first ultrasonic welder 15. The first lower crossbeam 10 is connected to the first frame 1 and is slidably fitted to the first frame 1. There are two first columns 11, which are respectively fixed to the first lower crossbeam 10. The first upper crossbeam 12 is fixed to the first column 11. The first lifting and lowering actuator 13 preferably uses multiple cylinders. 3. A first lifting and lowering actuator 13 is mounted on the first upper crossbeam 12 and is connected to a first stamping head 14. The first stamping head 14 has multiple first protrusions 14a on its end face acting on the thin sheet. The first stamping head 14 includes a connecting plate, a guide rail, a slider, and a stamping head body. The connecting plate is fixed to the first lifting and lowering actuator 13, the guide rail is fixed to the first upper crossbeam 12, the slider slides with the guide rail, the slider is fixed to the connecting plate, and the stamping head body is fixed to the connecting plate. The first protrusions 14a are provided on the end face of the stamping head body. A first ultrasonic welder 15 is connected to the first lower crossbeam 10. The first stamping head 14 and the first ultrasonic welder 15 cooperate to stamp the transverse edge of the multi-layer material and weld the material during the stamping process.

[0030] The welding and stitching unit includes a second welding and stitching unit and a driving unit. The first welding and stitching unit is movably connected to the first frame 1, the second welding and stitching unit is fixedly connected to the first frame 1, and the driving unit is connected to the first welding and stitching unit.

[0031] The welding and stitching unit includes a second welding and stitching unit, which includes a second lower crossbeam 16, a second column 17, a second upper crossbeam 18, a second lifting and lowering actuator 19, a second punch head 20, and a second ultrasonic welder 21. The second lower crossbeam 16 is fixed to the first frame 1, the second column 17 is fixed to the second lower crossbeam 16, the second upper crossbeam 18 is fixed to the second column 17, the second lifting and lowering actuator 19 is mounted on the second upper crossbeam 18, and the second lifting and lowering actuator 19 is connected to the second punch head 20. The second punch head 20 has multiple second protrusions on its end face acting on the thin sheet. The second punch head 20 includes a second connecting plate, a second guide rail, a second slider, and a second punch head body. The second connecting plate is fixed to the second lifting and lowering actuator 19, the second guide rail is fixed to the second upper crossbeam 18, the second slider slides with the second guide rail, the second slider is fixed to the second connecting plate, and the punch head body is fixed to the second connecting plate. The second protrusions are provided on the end face of the second punch head body. The second ultrasonic welder 21 is connected to the second lower crossbeam 16. The second punch head 20 cooperates with the second ultrasonic welder 21 to punch the transverse edges of the multi-layer material and weld the material during the punching process. By pressing simultaneously by the first welding and stitching unit and the second welding and stitching unit, two stitch lines can be formed on the material in the same pressing, thereby improving efficiency.

[0032] The drive unit includes a support 22, a first connecting rod 23, a handwheel 24, a first bevel gear 25, a second bevel gear 26, and a screw 27. The support 22 is fixed to the first lower crossbeam 10. The first connecting rod 23 is rotatably mounted on the support 22. The handwheel 24 is connected to the first connecting rod 23. The first bevel gear 25 is fixed to the first connecting rod 23. The first bevel gear 25 meshes with the second bevel gear 26. The second bevel gear 26 is fixed to the screw 27. The first lower crossbeam 10 is provided with a threaded hole. The screw 27 is threadedly connected to the threaded hole on the first lower crossbeam 10.

[0033] The aforementioned lifting driver 9, first lifting driver 13, and second lifting driver 19 are respectively connected to the air source via solenoid valves, the solenoid valves are connected to the PLC controller, and the motor in the drive assembly 8 is connected to the PLC controller.

[0034] The usage process of this utility model is as follows:

[0035] After the raw material (e.g., two layers of fabric and the intermediate cotton material between the two layers) passes over the opening roller 2, it passes through the welding and sewing unit and the raw material traction unit. The drive assembly 8 is then activated. Since the raw material is held by the upper clamping roller 6 and the lower clamping roller 7, the drive assembly 8 rotates the lower clamping roller 7, causing the raw material to move. According to the PLC program settings, for example, when the raw material moves 2 meters, the first lifting and lowering drive 13 and the second lifting and lowering drive 19 operate. The first lifting and lowering drive 13 drives the first punching head 14 downwards, and the second lifting and lowering drive 19... The second punch head 20 is driven to press downwards, and the raw material is pressed between the first punch head 14 and the first ultrasonic welder 15, and between the second punch head 20 and the second ultrasonic welder 21. The first ultrasonic welder 15 performs a welding action on the raw material, and the second ultrasonic welder 21 performs a welding action on the raw material. Therefore, the raw material between the first punch head 14 and the first ultrasonic welder 15 is welded, and the raw material between the second punch head 20 and the second ultrasonic welder 21 is welded, thereby forming two transverse stitch lines.

[0036] Rotating the handwheel 24 drives the first connecting rod 23 to rotate, the first connecting rod 23 drives the first bevel gear 25 to rotate, the first bevel gear 25 drives the second bevel gear 26 to rotate, and the second bevel gear 26 drives the screw 27 to rotate. Since the screw 27 is threadedly connected to the first lower crossbeam 10, and the first lower crossbeam 10 is slidably engaged with the first frame 1, the rotation of the screw 27 drives the first lower crossbeam 10 to translate, thereby changing the distance between the first lower crossbeam 10 and the second lower crossbeam 16, and thus changing the distance between the two stitches.

Claims

1. A transverse edge sewing device for a thin quilt, comprising a first frame (1), a fabric opening roller (2), and a raw material traction unit, wherein the raw material traction unit is connected to the first frame (1), and the fabric opening roller (2) is connected to the first frame (1), characterized in that, Also includes: The transverse edge of the multi-layer material is stamped and a welding and sewing unit is formed during the stamping process. The welding and sewing unit is connected to the first frame (1). The welding and sewing unit is located downstream of the opening roller (2) and upstream of the material traction unit.

2. The transverse edge sewing device for a thin quilt according to claim 1, characterized in that, The raw material traction unit includes a first support (3), a first bearing assembly (4), a second bearing assembly (5), an upper pinch roller (6), a lower pinch roller (7), and a drive assembly (8). The first bearing assembly (4) and the second bearing assembly (5) are respectively mounted on the first support (3). The first bearing assembly (4) is located above the second bearing assembly (5). The upper pinch roller (6) is connected to the first bearing assembly (4), the lower pinch roller (7) is connected to the second bearing assembly (5), and the drive assembly (8) is connected to the upper pinch roller (6) or the lower pinch roller (7).

3. The transverse edge sewing device for a thin quilt according to claim 2, characterized in that, The raw material traction unit also includes a lifting driver (9) for adjusting the distance between the upper pinch roller (6) and the lower pinch roller (7). The lifting driver (9) is connected to the first bearing assembly (4), the first bearing assembly (4) is slidably engaged with the first bracket (3), and the drive assembly (8) is connected to the lower pinch roller (7).

4. The transverse edge sewing device for a thin quilt according to claim 1, characterized in that, The welding and stitching unit includes a first welding and stitching unit, which includes a first lower crossbeam (10), a first column (11), a first upper crossbeam (12), a first lifting and lowering driver (13), a first stamping head (14), and a first ultrasonic welder (15). The first lower crossbeam (10) is connected to the first frame (1), the first column (11) is fixed to the first lower crossbeam (10), the first upper crossbeam (12) is fixed to the first column (11), the first lifting and lowering driver (13) is mounted on the first upper crossbeam (12), the first lifting and lowering driver (13) is connected to the first stamping head (14), and the first ultrasonic welder (15) is connected to the first lower crossbeam (10). The first stamping head (14) and the first ultrasonic welder (15) cooperate to stamp the transverse edge of the multi-layer material and weld the material during the stamping process.

5. The transverse edge sewing device for a thin quilt according to claim 4, characterized in that, The first punch (14) has multiple first protrusions (14a) on the end face of the thin sheet.

6. The transverse edge sewing device for a thin quilt according to claim 4 or 5, characterized in that, The welding and stitching unit includes a second welding and stitching unit and a driving unit. The first welding and stitching unit is movably connected to the first frame (1), the second welding and stitching unit is fixedly connected to the first frame (1), and the driving unit is connected to the first welding and stitching unit.

7. The transverse edge sewing device for a thin quilt according to claim 6, characterized in that, The welding and stitching unit includes a second welding and stitching unit, which includes a second lower crossbeam (16), a second column (17), a second upper crossbeam (18), a second lifting and lowering actuator (19), a second stamping head (20), and a second ultrasonic welder (21). The second lower crossbeam (16) is fixed to the first frame (1), the second column (17) is fixed to the second lower crossbeam (16), the second upper crossbeam (18) is fixed to the second column (17), the second lifting and lowering actuator (19) is mounted on the second upper crossbeam (18), the second lifting and lowering actuator (19) is connected to the second stamping head (20), and the second ultrasonic welder (21) is connected to the second lower crossbeam (16). The second stamping head (20) and the second ultrasonic welder (21) cooperate to stamp the transverse edges of the multi-layer material and weld the material during the stamping process.

8. The transverse edge sewing device for a thin quilt according to claim 7, characterized in that, The second punch (20) has multiple second protruding teeth on the end face of the thin sheet.

9. The transverse edge sewing device for a thin quilt according to claim 6, characterized in that, The drive unit includes a support (22), a first connecting rod (23), a handwheel (24), a first bevel gear (25), a second bevel gear (26), and a screw (27). The support (22) is fixed to the first lower crossbeam (10). The first connecting rod (23) is rotatably mounted on the support (22). The handwheel (24) is connected to the first connecting rod (23). The first bevel gear (25) is fixed to the first connecting rod (23). The first bevel gear (25) meshes with the second bevel gear (26). The second bevel gear (26) is fixed to the screw (27). The first lower crossbeam (10) is provided with a threaded hole. The screw (27) is threadedly connected to the threaded hole on the first lower crossbeam (10).

Images