A computerized flatbed sewing machine

Abstract

This invention discloses a computerized flatbed sewing machine including a base plate. A sewing machine body is fixedly connected to the top of the base plate, and a first control panel is provided on one side of the sewing machine body. A needle assembly and a presser foot switching mechanism are simultaneously connected to one end of the sewing machine body. A conveying mechanism is provided on the top of the base plate, located to the side of the presser foot switching mechanism. The presser foot switching mechanism includes a presser foot control rod connected to the sewing machine body. A first presser foot connecting seat is fixedly connected to the bottom end of the presser foot control rod, and a second presser foot connecting seat is connected to the first presser foot connecting seat via a first screw. A damping slide rail is fixedly connected to the bottom outer wall of the second presser foot connecting seat, and a damping slider is movably connected to the damping slide rail. A support frame is connected to the bottom outer wall of the damping slider. This computerized flatbed sewing machine allows for quick switching of presser foot usage modes for different fabrics, effectively improving sewing efficiency in small workshops.

Description

Technical Field

[0001] This invention relates to the field of computerized flatbed sewing machine technology, and more particularly to a computerized flatbed sewing machine. Background Technology

[0002] A computerized flatbed sewing machine is a flatbed sewing machine operated by a computer system. It is a typical mechatronics product integrating optics, electricity, and magnetism. Its features include the integration, expansion, and optimization of multiple functions such as automatic thread trimming, automatic backstitching, automatic thread guide, automatic presser foot lifting, needle positioning and stopping, fixed-length sewing, and automatic counting. Therefore, it is commonly used in the garment manufacturing industry.

[0003] One of the more common operational problems when using computerized flatbed sewing machines is that different types of fabric can easily cause the fabric to bend, especially when sewing thin and slippery fabrics, which can easily deform and affect the finished product. Large garment factories, with their clear division of labor, can solve this problem by adjusting the presser foot according to different fabrics. However, small workshops and private workshops often need to sew and splice different fabrics, which requires frequent adjustments of the presser foot, making the operation complex and prone to causing problems with accessories. Summary of the Invention

[0004] This invention discloses a computerized flatbed sewing machine, which aims to solve the technical problem that small-scale workshops and private workshops need to frequently sew and splice different fabrics, which requires frequent adjustment of the presser foot, making the operation complicated and prone to causing problems with accessories.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A computerized flatbed sewing machine includes a base plate, a sewing machine body fixedly connected to the top of the base plate, a first control panel on one side of the sewing machine body, a needle assembly and a presser foot switching mechanism connected to one end of the sewing machine body, and a conveying mechanism located on the top of the base plate and to one side of the presser foot switching mechanism. The presser foot switching mechanism includes a presser foot control rod connected to the sewing machine body, a first presser foot connecting seat fixedly connected to the bottom of the presser foot control rod, a second presser foot connecting seat connected to the first presser foot connecting seat via a first screw, a damping slide rail fixedly connected to the bottom outer wall of the second presser foot connecting seat, a damping slider movably connected to the damping slide rail, a support frame connected to the bottom outer wall of the damping slider, and two presser feet connected to the support frame via a connecting mechanism. The two presser feet are arranged side by side, one presser foot has a metal bottom and the other presser foot has a rubber bottom.

[0007] By incorporating a presser foot switching mechanism, two presser feet are simultaneously connected to the bottom of the presser foot control lever via a second presser foot connecting seat and a first presser foot connecting seat. The bottoms of the two presser feet are made of different materials, namely metal and rubber, respectively. This allows them to be used on thick, high-friction fabrics, ordinary fabrics, and thin, smooth fabrics, respectively. By quickly switching between different fabric usage modes, work efficiency is improved.

[0008] In a preferred embodiment, the connecting mechanism includes a support rod fixed within a support frame. A first circular partition is fixedly connected to the middle section of the support rod, and the top of the first circular partition is simultaneously connected to the inner wall of the top of the support frame. Limiting rods are fixedly connected to the outer walls of opposite sides of the first circular partition. Two connecting sleeves are simultaneously connected to the support rod via damping bearings. The two connecting sleeves are symmetrically arranged on both sides of the first circular partition. An outer square support frame is fixedly connected to the outer wall of each connecting sleeve on the same side. A second arc-shaped groove is provided through one side of the outer square support frame. An inner square support frame is movably engaged with the inner wall of the square support frame, and a first arc-shaped slide groove is provided through one side of the inner square support frame. The positions of the first arc-shaped slide groove and the second arc-shaped slide groove coincide. A second partition is fixedly connected to the inner wall of the outer square support frame, and multiple springs are connected to the bottom outer wall of the second partition. The bottom ends of the multiple springs are simultaneously connected to the bottom inner wall of the inner square support frame. An arc-shaped slide is fixedly connected to one side outer wall of the outer square support frame, and a third arc-shaped slide groove is provided on the arc-shaped slide. A limiting rod passes through the first arc-shaped slide groove, the second arc-shaped slide groove, and the third arc-shaped slide groove simultaneously.

[0009] With a connecting mechanism, the support frame is connected to the presser foot. In the connecting mechanism, the presser foot can be turned to one side by manually rotating the connecting sleeve, and the outer square support frame and the inner square support frame can be opened by a spring, extending the support length of the presser foot and thus avoiding obstruction of the operating space.

[0010] In a preferred embodiment, the conveying mechanism includes a U-shaped support frame, with multiple nuts at the bottom of the U-shaped support frame. A second screw is engaged within each nut, and a pressure plate and a handle are respectively connected to both ends of the second screw. A second control panel is provided at the top of the U-shaped support frame, and a bearing seat is fixedly connected to one side of the U-shaped support frame. A first gear and a second gear are respectively connected to the bearing seat via two support shafts, and the first gear and the second gear mesh with each other. The other ends of the two support shafts are respectively connected to a first roller and a second roller, and a motor is fixedly connected to the outer wall of one side of the second gear. The motor is fixed to one side of the bearing seat.

[0011] By setting up a conveying mechanism and fixing the U-shaped support frame, the motor drives the second gear to rotate, which in turn drives the first gear to rotate, so that the first roller and the second roller rotate inward at the same time, clamping and conveying the fabric. This structure can effectively prevent the fabric from piling up and affecting the workspace.

[0012] As described above, a computerized flatbed sewing machine includes a base plate. A sewing machine body is fixedly connected to the top of the base plate, and a first control panel is provided on one side of the sewing machine body. A needle assembly and a presser foot switching mechanism are simultaneously connected to one end of the sewing machine body. A conveying mechanism is provided on the top of the base plate and on one side of the presser foot switching mechanism. The presser foot switching mechanism includes a presser foot control rod, which is connected to the sewing machine body. A first presser foot connecting seat is fixedly connected to the bottom end of the presser foot control rod, and a second presser foot connecting seat is connected to the first presser foot connecting seat via a first screw. A damping slide rail is fixedly connected to the bottom outer wall of the second presser foot connecting seat, and a damping slider is movably connected to the damping slide rail. A support frame is connected to the bottom outer wall of the damping slider, and two presser feet are simultaneously connected to the support frame via a connecting mechanism. The two presser feet are arranged side by side, with the bottom end of one presser foot made of metal and the bottom end of the other presser foot made of rubber. The computerized flatbed sewing machine provided by this invention has the technical effect of quickly switching the presser foot usage mode corresponding to different fabrics, which can effectively improve the sewing efficiency of small-scale workshops. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a computerized flat sewing machine proposed in this invention.

[0014] Figure 2 This is a schematic diagram of the presser foot switching mechanism of a computerized flat sewing machine proposed in this invention.

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the connecting mechanism of a computerized flat sewing machine proposed in this invention.

[0016] Figure 4 This is a cross-sectional view of the connecting mechanism of a computerized flat sewing machine proposed in this invention.

[0017] Figure 5 This is a schematic diagram of the conveying mechanism structure of a computerized flat sewing machine proposed in this invention.

[0018] In the diagram: 1. Base plate; 2. Sewing machine body; 3. First control panel; 4. Needle assembly; 5. Presser foot switching mechanism; 6. Conveying mechanism; 7. Connecting mechanism; 501. Presser foot control lever; 502. First presser foot connecting seat; 503. Second presser foot connecting seat; 504. Damping slide rail; 505. Damping slider; 506. Support frame; 507. Presser foot; 508. First screw; 601. First roller; 602. Second roller; 603. Bearing seat; 604. First gear; 605. Second gear; 606. Motor; 607. Pressure plate; 608, nut; 609, second screw; 610, handle; 611, U-shaped support frame; 612, second control panel; 613, support shaft; 701, support rod; 702, first circular partition; 703, limit rod; 704, inner square support frame; 705, first arc-shaped slide groove; 706, outer square support frame; 707, second arc-shaped slide groove; 708, connecting sleeve; 709, damping bearing; 710, connecting frame; 711, spring; 712, second partition; 713, arc-shaped slide; 714, third arc-shaped slide groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The computerized flatbed sewing machine disclosed in this invention is mainly used in clothing sewing.

[0021] Reference Figures 1-3A computerized flatbed sewing machine includes a base plate 1. A sewing machine body 2 is fixedly connected to the top of the base plate 1. A first control panel 3 is provided on one side of the sewing machine body 2. A needle assembly 4 and a presser foot switching mechanism 5 are simultaneously connected to one end of the sewing machine body 2. A conveying mechanism 6 is provided on the top of the base plate 1 and on one side of the presser foot switching mechanism 5. The presser foot switching mechanism 5 includes a presser foot control rod 501, which is connected inside the sewing machine body 2. A first presser foot connecting seat 502 is fixedly connected to the bottom end of the presser foot control rod 501. A second presser foot connecting seat 503 is connected to the first presser foot connecting seat 502 through a first screw 508. A damping slide rail 504 is fixedly connected to the bottom outer wall of the second presser foot connecting seat 503. A damping slider 505 is movably connected to the damping slide rail 504. A support frame 506 is connected to the bottom outer wall of the damping slider 505. Two presser feet 507 are connected simultaneously to the upper part of the 6 via the connecting mechanism 7. The two presser feet 507 are arranged side by side. The bottom of one presser foot 507 is made of metal, and the bottom of the other presser foot 507 is made of rubber. In the presser foot switching mechanism 5, the two presser feet 507 are directly connected to the bottom of the presser foot control rod 501 through the connection between the second presser foot connecting seat 503 and the first presser foot connecting seat 501. The bottom materials of the two presser feet 507 are different, namely metal and rubber, respectively. They can be used for thick, high-friction fabrics, ordinary fabrics, and thin, smooth fabrics, respectively. The use of presser feet 507 with different materials is switched by simply moving the support frame 506 laterally, which drives the damping slider 505 to move on the damping slide rail 504. Thus, the use mode of different fabrics can be quickly switched with simple operation, improving work efficiency and making it more suitable for small-scale workshops.

[0022] Reference Figure 2 and Figure 3 In a preferred embodiment, the connecting mechanism 7 includes a support rod 701, which is fixed inside the support frame 506. A first circular partition 702 is fixedly connected to the middle section of the support rod 701, and the top of the first circular partition 702 is simultaneously connected to the inner wall of the top of the support frame 506.

[0023] Reference Figure 3 and Figure 4 In a preferred embodiment, limit rods 703 are fixedly connected to the outer walls of the opposite sides of the first circular partition 702, and two connecting sleeves 708 are connected to the support rod 701 through damping bearings 709. The two connecting sleeves 708 are symmetrically arranged on both sides of the first circular partition 702.

[0024] Reference Figure 3 and Figure 4In a preferred embodiment, an outer square support frame 706 is fixedly connected to the outer wall of each connecting sleeve 708 on the same side, and a second arc-shaped slide groove 707 is provided through one side of the outer square support frame 706. An inner square support frame 704 is movably engaged with the inner wall of the outer square support frame 706, and a first arc-shaped slide groove 705 is provided through one side of the inner square support frame 704. The positions of the first arc-shaped slide groove 705 and the second arc-shaped slide groove 707 coincide.

[0025] Reference Figure 3 and Figure 4 In a preferred embodiment, a second partition 712 is fixedly connected to the inner wall of the outer square support frame 706, and a plurality of springs 711 are connected to the bottom outer wall of the second partition 712. The bottom ends of the plurality of springs 711 are simultaneously connected to the bottom inner wall of the inner square support frame 704. An arc-shaped slide 713 is fixedly connected to one side outer wall of the outer square support frame 706, and a third arc-shaped slide groove 714 is provided on the arc-shaped slide 713. The limiting rod 703 passes through the first arc-shaped slide groove 705, the second arc-shaped slide groove 707, and the third arc-shaped slide groove 714 simultaneously. The support frame 506 is connected via... Mechanism 7 connects to presser foot 507. In the connecting mechanism 7, the presser foot 507 can be tilted to one side by manually rotating the connecting sleeve 708. By rotating, the limiting rod 703 enters the third arc-shaped slide groove 714. When the limiting rod 703 disengages from the first arc-shaped slide groove 705 and the second arc-shaped slide groove 707, the outer square support frame 706 and the inner square support frame 704 spring open under the action of the spring 711, extending the support length of the presser foot 507. This allows the position of the non-used presser foot 507 to be far away from the position of the presser foot 507 in use, thereby avoiding obstruction of the operating space.

[0026] Reference Figure 5 In a preferred embodiment, the conveying mechanism 6 includes a U-shaped support frame 611, and a plurality of nuts 608 are provided at the bottom end of the U-shaped support frame 611. A second screw 609 is engaged in the nut 608, and a pressure plate 607 and a handle 610 are respectively connected to both ends of the second screw 609. The conveying mechanism 6 can be snapped onto the base plate 1 by the U-shaped support frame 611, and a stable connection with the base plate 1 is established by the twisting and squeezing of the plurality of second screws 609, which is convenient for installation and can also adapt to base plates 1 of different thicknesses.

[0027] Reference Figure 5 In a preferred embodiment, a second control panel 612 is provided at the top of the U-shaped support frame 611, and a bearing seat 603 is fixedly connected to one side of the U-shaped support frame 611. A first gear 604 and a second gear 605 are respectively connected to the bearing seat 603 through two support shafts 613, and the first gear 604 and the second gear 605 mesh with each other.

[0028] Reference Figure 5In a preferred embodiment, the other ends of the two support shafts 613 are respectively connected to the first roller 601 and the second roller 602, and a motor 606 is fixedly connected to one side of the outer wall of the second gear 605. The motor 606 is fixed to one side of the bearing seat 603. After the U-shaped support frame 611 is fixed, the motor 606 drives the second gear 605 to rotate, which in turn drives the first gear 604 to rotate, so that the first roller 601 and the second roller 602 rotate inward at the same time to clamp and convey the fabric. Under this structure, the accumulation of fabric can be effectively avoided from affecting the working space.

[0029] Working principle: In the presser foot switching mechanism 5, two presser feet 507 are directly connected to the bottom of the presser foot control rod 501 through the connection between the second presser foot connecting seat 503 and the first presser foot connecting seat 501. The bottoms of the two presser feet 507 are made of different materials, namely metal and rubber, respectively. They can be used for thick, high-friction fabrics, ordinary fabrics, and thin, smooth fabrics. The use of presser feet 507 of different materials is switched by simply moving the support frame 506 laterally, which drives the damping slider 505 to move on the damping slide rail 504. Thus, the use mode of different fabrics can be quickly switched with simple operation. At the same time, since the support frame 506 is connected to the presser feet 507 through the connecting mechanism 7, the connecting sleeve 708 can be manually rotated to make the presser feet 507 turn to one side, and the limiting rod 703 enters the third arc-shaped slide groove by rotation. Inside 714, when the limiting rod 703 disengages from the first arc-shaped slide 705 and the second arc-shaped slide 707, under the action of the spring 711, the outer square support frame 706 and the inner square support frame 704 spring open, extending the support length of the presser foot 507. This allows the position of the unused presser foot 507 to be moved away from the position of the presser foot 507 in use, thus avoiding obstruction of the operating space. In addition, the conveying mechanism 6 can be snapped onto the base plate 1 by the U-shaped support frame 611, and a stable connection with the base plate 1 is established by the twisting and squeezing of multiple second screws 609. After the U-shaped support frame 611 is fixed, the motor 606 drives the second gear 605 to rotate, which in turn drives the first gear 604 to rotate, so that the first roller 601 and the second roller 602 rotate inward at the same time to clamp and convey the fabric. This structure can effectively prevent the fabric from piling up and affecting the working space.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A computerized lockstitch sewing machine comprising a bed (1), characterized in that, The top end of the bottom plate (1) is fixedly connected with a sewing machine body (2), one side of the sewing machine body (2) is provided with a first control panel (3), one end of the sewing machine body (2) is simultaneously connected with a needle assembly (4) and a presser foot switching mechanism (5), and the top end of the bottom plate (1) and one side of the presser foot switching mechanism (5) are provided with a conveying mechanism (6); The presser foot switching mechanism (5) comprises a presser foot control rod (501), the presser foot control rod (501) is connected in the sewing machine body (2), the bottom end of the presser foot control rod (501) is fixedly connected with a first presser foot connecting seat (502), the first presser foot connecting seat (502) is connected with a second presser foot connecting seat (503) through a first screw rod (508), the bottom end outer wall of the second presser foot connecting seat (503) is fixedly connected with a damping slide rail (504), the damping slide rail (504) is movably connected with a damping slide block (505), the bottom end outer wall of the damping slide block (505) is connected with a support frame (506), and the support frame (506) is simultaneously connected with two presser feet (507) through a connecting mechanism (7), the two presser feet (507) are arranged side by side, the bottom end of one of the presser feet (507) is made of metal, and the bottom end of the other presser foot (507) is made of rubber; The connecting mechanism (7) comprises a support rod (701), and the support rod (701) is fixed in the support frame (506), the middle segment of the support rod (701) is fixedly connected with a first circular partition plate (702), and the top end of the first circular partition plate (702) is simultaneously connected to the top end inner wall of the support frame (506); The opposite two side outer walls of the first circular partition plate (702) are respectively fixedly connected with limit rods (703), and the support rod (701) is simultaneously connected with two connecting sleeves (708) through damping bearings (709), and the two connecting sleeves (708) are symmetrically arranged on the two sides of the first circular partition plate (702); The same side outer walls of each connecting sleeve (708) are respectively fixedly connected with outer square support frames (706), one side of the outer square support frame (706) is provided with a second arc-shaped sliding groove (707), the inner wall of the outer square support frame (706) is movably clamped with an inner square support frame (704), one side of the inner square support frame (704) is provided with a first arc-shaped sliding groove (705), and the positions of the first arc-shaped sliding groove (705) and the second arc-shaped sliding groove (707) are coincided; The inner wall of the outer square support frame (706) is fixedly connected with a second partition plate (712), the bottom end outer wall of the second partition plate (712) is connected with a plurality of springs (711), the bottom ends of the plurality of springs (711) are simultaneously connected to the bottom end inner wall of the inner square support frame (704), the side outer wall of the outer square support frame (706) is fixedly connected with an arc-shaped sliding frame (713), the arc-shaped sliding frame (713) is provided with a third arc-shaped sliding groove (714), and the limit rods (703) simultaneously pass through the first arc-shaped sliding groove (705), the second arc-shaped sliding groove (707) and the third arc-shaped sliding groove (714).

2. A computerized lockstitch sewing machine according to claim 1, characterized in that, The conveying mechanism (6) comprises a U-shaped support frame (611), the bottom end of the U-shaped support frame (611) is provided with a plurality of nuts (608), the nut (608) is engaged with a second screw rod (609), and the two ends of the second screw rod (609) are respectively connected with a pressing plate (607) and a handle (610).

3. A computerized lockstitch sewing machine according to claim 2, characterized in that The top end of the U-shaped support frame (611) is provided with a second control panel (612), one side of the U-shaped support frame (611) is fixedly connected with a bearing seat (603), the bearing seat (603) is connected with a first gear (604) and a second gear (605) through two support shafts (613) respectively, and the first gear (604) and the second gear (605) are engaged.

4. A computerized lockstitch sewing machine according to claim 3, characterized in that, The other ends of the two support shafts (613) are respectively connected with a first roller shaft (601) and a second roller shaft (602), and the outer wall of one side of the second gear (605) is fixedly connected with a motor (606), and the motor (606) is fixed on one side of the bearing seat (603).

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