Thread cutting device of overedger
By designing components such as fixing plates, rubber plates, suction heads and vacuum cleaners on the overhead machine, the cutting knife moves up and down and absorbs the cut-off heads, solving the problem of thread head drop, realizing rapid cleaning of work surfaces and convenient cleaning of vacuum cleaners , improves the practicality and convenience of the overhead sewing machine.
Patent Information
- Application Number
- CN202323529083.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2033-12-22
AI Technical Summary
When used in the existing overhead tangent device, the cut thread heads are easily dropped randomly, making it difficult to quickly clean the work surface, which affects practicality.
A thread tangent device of the over-seamer is designed, using components such as fixing plates, rubber plates, grooves, sliders, sliders, fixing seats, suction heads and vacuum cleaners. The cutting knife is driven up and down through the driving mechanism, and the suction heads and The vacuum cleaner absorbs the cut-off thread head, and combines the magnet and the engaging slot to achieve stable fixation and convenient cleaning of the vacuum cleaner.
It effectively prevents the thread head from falling, keeps the work surface clean, and can easily disassemble and clean the vacuum cleaner after a long time of use, improving the cleaning efficiency and convenience of the overhead sewing machine.
Smart Images
Figure CN222119600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of overlock sewing machines, in particular to a thread cutting device for overlock sewing machines. Background Art
[0002] Overlock sewing machines are also called edge machines, edge machines, and bone machines. They are generally divided into three-line, four-line, and five-line machines. The main function is generally to prevent the seams of clothing from fuzzing. Overlock sewing machines can not only be used for edge binding, but also for sewing T-shirts, sportswear, underwear, knitwear and other fabrics. Overlock sewing machines can cut and sew at the same time. The seams are like mesh and are also suitable for elastic fabrics. The utility model with publication number CN217757899U discloses a thread cutting device for an overlock sewing machine for sewing clothes, including an overlock sewing machine body, a ball screw, a swinging strip plate, and a mounting plate. Brackets are longitudinally arranged around the upper end of the overlock sewing machine body, and a top plate is transversely arranged on the upper end of the bracket. A motor is arranged through the middle of the top plate, and the lower end of the motor is fixedly connected to the upper end of the ball screw through a coupling, a screw sleeve is arranged on the annular side of the ball screw, and L-shaped connecting rods are symmetrically fixed on the left and right sides of the screw sleeve, and the lower ends of the two L-shaped connecting rods are fixed to the upper end of the blade base. However, when the utility model is in use, the cut thread ends will fall randomly, which will cause the thread ends to fly for a long time, making it inconvenient to quickly clean the work surface. Therefore, it is very necessary to design a thread cutting device for the overlock sewing machine that is highly practical and convenient for cleaning the work surface. Utility Model Content
[0003] The purpose of the utility model is to provide a thread cutting device for an overlock sewing machine to solve the problems raised in the above background technology.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a thread cutting device for an overlock sewing machine comprises a top plate and an overlock sewing machine cutter, the top plate is symmetrically fixedly installed with a fixing plate, a rubber plate is fixedly installed in the middle of the fixing plate, a cutting groove is opened in the middle of the rubber plate, a first placement groove is opened at the opposite end of the fixing plate, a sliding rod is fixedly installed in the first placement groove, a sliding block is movably installed on the sliding rod, a fixing seat is fixedly installed in the middle of the sliding block, a fixing groove is symmetrically opened at the lower end of the fixing seat, a fixing block is symmetrically fixedly installed at the upper end of the overlock sewing machine cutter, and the fixing block is fixedly installed in the corresponding fixing block by fastening bolts. The groove is provided with a driving cavity, a connecting plate is fixedly installed on the upper end of the top plate, a driving mechanism that can drive the connecting plate to move up and down is provided in the driving cavity, a connecting tube is fixedly installed through the fixed plate, a suction head is fixedly installed on the end of the connecting tube close to the overlock machine cutter, a first connecting head is fixedly installed on the end of the connecting tube away from the overlock machine cutter, a support plate is fixedly installed on the end of the fixed plate away from the overlock machine cutter, a vacuum cleaner is provided on the upper end of the support plate, a second connecting head is fixedly installed on one end of the vacuum cleaner, and the second connecting head and the corresponding first connecting head are connected by adsorption of a first magnet.
[0005] According to the above technical solution, the driving mechanism includes a control motor fixedly installed in the driving cavity, a first gear is fixedly installed at the output end of the control motor, a rotating shaft is symmetrically and movably installed in the driving cavity, a second gear is fixedly installed on the rotating shaft, the second gear is symmetrically arranged at both ends of the first gear, the second gear is respectively meshed with the first gear, a third gear is fixedly installed on the rotating shaft, a rack is symmetrically fixedly installed on the connecting plate, the third gear and the rack correspond one to one, the third gear is a half-tooth gear and at the same time, only one end of the third gear can and can only be meshed with the corresponding rack.
[0006] According to the above technical solution, a guide rod is symmetrically fixedly installed on the upper end of the fixing seat, and the guide rod is movably installed through the top plate and a limit plate is fixedly installed on the upper end.
[0007] According to the above technical solution, a snap-fit groove is provided on the upper end of the support plate, and a second magnet is symmetrically fixedly installed in the snap-fit groove, and the second magnet can adsorb and fix the vacuum cleaner.
[0008] According to the above technical solution, a spring is fixedly installed at the lower end of the slider.
[0009] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model, by providing a fixing plate, is a thread cutting device installed on the overlock sewing machine as a whole, and the fixing plate can be fixedly installed at a corresponding position on the overlock sewing machine. When the overlock sewing machine is cutting the thread, the control motor can be controlled by the control device, thereby driving the first gear to rotate, and since the second gear is respectively meshed with the first gear, the rotating shaft can be driven to rotate, and the rotation of the rotating shaft drives the third gear to rotate at the same time, and since the third gear is a half-tooth gear and can and can only have one end of the third gear meshed with the corresponding rack at the same time, the connecting plate can be driven to reciprocate up and down, and the fixing plate can be made to rotate by the guide rod The fixed seat moves up and down along the direction of the guide rod, and is limited at the same time to prevent the fixed seat from lateral deviation. The upper and lower displacements of the fixed seat can be limited by the limit plate, so that the cutter can reciprocate up and down to cut the thread. The cut thread ends are sucked into the vacuum cleaner by the suction head to prevent them from falling everywhere and causing the accumulation of thread ends, thereby ensuring the cleanliness of the work surface. At the same time, the cutter is fixed by fastening bolts, and can be conveniently disassembled after long-term use, and the vacuum cleaner can be cleaned in time. The second connecting head and the corresponding first connecting head are connected by the first magnet, which facilitates the timely cleaning of the vacuum cleaner, and the vacuum cleaner can be stably placed through the engaging groove on the upper end of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0011] Figure 1 It is a schematic diagram of the main cross-sectional view of the utility model;
[0012] Figure 2 It is a top cross-sectional schematic diagram of the top plate of the utility model;
[0013] Figure 3 It is a three-dimensional schematic diagram of the rubber sheet of the utility model;
[0014] Figure 4 It is a three-dimensional schematic diagram of the support plate of the utility model;
[0015] In the figure: 1-top plate, 2-overlock cutter, 3-fixed plate, 4-rubber plate, 5-cutting groove, 6-first placement groove, 7-slide rod, 8-slider, 9-fixed seat, 10-fixed groove, 11-fixed block, 12-driving chamber, 13-connecting plate, 14-connecting pipe, 15-suction head, 16-first connector, 17-support plate, 18-vacuum cleaner, 19-second connector, 20-control motor, 21-first gear, 22-rotating shaft, 23-second gear, 24-third gear, 25-rack, 26-guide rod, 27-limiting plate, 28-engaging groove, 29-second magnet, 30-spring. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-4The utility model provides a technical solution: a thread cutting device for an overlock sewing machine, comprising a top plate 1 and an overlock sewing machine cutter 2, wherein the top plate 1 is symmetrically fixedly installed with a fixing plate 3, a rubber plate 4 is fixedly installed in the middle of the fixing plate 3, a cutting groove 5 is opened in the middle of the rubber plate 4, a first placement groove 6 is opened at the opposite end of the fixing plate 3, a slide bar 7 is fixedly installed in the first placement groove 6, a slider 8 is movably installed on the slide bar 7, a fixing seat 9 is fixedly installed in the middle of the slider 8, and a fixing seat 9 is symmetrically opened at the lower end of the fixing seat 9. The top plate 1 is provided with a driving chamber 12, and a connecting plate 13 is fixedly installed on the top of the top plate 1. A driving mechanism that can drive the connecting plate 13 to move up and down is provided in the driving chamber 12. A connecting pipe 14 is fixedly installed in the fixing plate 3, and a suction head 15 is fixedly installed at one end of the connecting pipe 14 near the cutting knife 2 of the overlock machine. A first connector 16 is fixedly installed at one end of the connecting tube 14 away from the overlock machine cutter 2, a support plate 17 is fixedly installed at one end of the fixing plate 3 away from the overlock machine cutter 2, a vacuum cleaner 18 is provided at the upper end of the supporting plate 17, a second connector 19 is fixedly installed at one end of the vacuum cleaner 18, the second connector 19 and the corresponding first connector 16 are connected by adsorption of a first magnet. When the utility model is in use, the whole is a thread cutting device installed on the overlock machine, and the fixing plate 3 is fixedly installed on the corresponding When the overlock sewing machine is cutting the thread, the driving mechanism drives the cutter 2 to cut the thread up and down, and the cut thread ends are sucked into the vacuum cleaner 18 by the suction head 15 to prevent them from falling everywhere and causing the accumulation of thread ends, thereby ensuring the cleanliness of the work surface. At the same time, the cutter 2 is fixed by the fastening bolts, and can be conveniently disassembled after long-term use. The vacuum cleaner 18 can be cleaned in time. The second connector 19 and the corresponding first connector 16 are connected by the first magnet, which is convenient for the vacuum cleaner 18 to be cleaned in time.
[0018] Specifically, the driving mechanism includes a control motor 20 fixedly mounted in the driving cavity 12, a first gear 21 fixedly mounted at the output end of the control motor 20, a rotating shaft 22 symmetrically and movably mounted in the driving cavity 12, a second gear 23 fixedly mounted on the rotating shaft 22, the second gear 23 symmetrically arranged at both ends of the first gear 21, the second gear 23 respectively meshing with the first gear 21, a third gear 24 fixedly mounted on the rotating shaft 22, a rack 25 symmetrically and fixedly mounted on the connecting plate 13, the third gear 24 and the rack 25 correspond one to one, the third gear 24 is a half-tooth gear and can and can only have The third gear 24 at one end is meshed with the corresponding rack 25, and a control device is provided outside. The control device is a common motor control end, which will not be described in detail here. The control motor 20 can be controlled by the control device, thereby driving the first gear 21 to rotate. Since the second gear 23 is respectively meshed with the first gear 21, the rotating shaft 22 can be driven to rotate. The rotating shaft 22 drives the third gear 24 to rotate while rotating. Since the third gear 24 is a half-tooth gear and the third gear 24 at one end can and can only be meshed with the corresponding rack 25 at the same time, the connecting plate 13 can be driven to move up and down reciprocatingly, so that the cutter 2 can reciprocate up and down to cut the line;
[0019] Specifically, a guide rod 26 is symmetrically fixedly installed on the upper end of the fixed seat 9, and the guide rod 26 is movably installed on the top plate 1 and a limit plate 27 is fixedly installed on the upper end. The fixed seat 9 can be moved up and down along the direction of the guide rod 26 through the guide rod 26, and at the same time, it is limited to prevent the fixed seat 9 from lateral deviation. The limit plate 27 can limit the vertical displacement of the fixed seat 9;
[0020] Specifically, a snap-fit groove 28 is provided at the upper end of the support plate 17, and a second magnet 29 is symmetrically fixedly installed in the snap-fit groove 28, and the second magnet 29 can adsorb and fix the vacuum cleaner 18, and the vacuum cleaner 18 can be stably placed through the snap-fit groove 28 at the upper end of the support plate 17;
[0021] Specifically, a spring 30 is fixedly installed at the lower end of the slider 8. The elastic force of the spring 30 can buffer the cutter 2 between the sliders 8, thereby preventing the cutter 2 from falling directly after the connecting plate 13 loses its function.
[0022] Working principle: When the utility model is in use, the whole is a thread cutting device installed on the overlock sewing machine. The fixing plate 3 can be fixedly installed at the corresponding position on the overlock sewing machine. When the overlock sewing machine is cutting the thread, a control device is provided outside. The control device is an ordinary motor control end, which will not be described in detail here. The control motor 20 can be controlled by the control device, and then the first gear 21 can be driven to rotate. Since the second gear 23 is respectively engaged with the first gear 21, the rotating shaft 22 can be driven to rotate. When the rotating shaft 22 rotates, the third gear 24 is driven to rotate. Since the third gear 24 is a half-tooth gear and only one end of the third gear 24 can be engaged with the corresponding rack 25 at the same time, the connecting plate 13 can be driven to reciprocate up and down, and the guide rod 26 can be used to So that the fixing seat 9 can move up and down along the direction of the guide rod 26, and at the same time, it is limited to prevent the fixing seat 9 from lateral deviation. The upper and lower displacement of the fixing seat 9 can be limited by the limiting plate 27, so that the cutter 2 can reciprocate up and down to cut the thread. The cut thread ends are sucked into the vacuum cleaner 18 by the suction head 15 to prevent them from falling everywhere and causing the accumulation of thread ends, thereby ensuring the cleanliness of the work surface. At the same time, the cutter 2 is fixed by fastening bolts, and can be conveniently disassembled after long-term use, and the vacuum cleaner 18 can be cleaned in time. The second connecting head 19 and the corresponding first connecting head 16 are connected by the first magnet, which facilitates the timely cleaning of the vacuum cleaner 18. The vacuum cleaner 18 can be stably placed through the engaging groove 28 at the upper end of the support plate 17.
[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A thread cutting device for an overlock sewing machine, comprising a top plate (1) and an overlock sewing machine cutter (2), characterized in that: The top plate (1) is symmetrically fixedly installed with a fixing plate (3), a rubber plate (4) is fixedly installed in the middle of the fixing plate (3), a cutting groove (5) is opened in the middle of the rubber plate (4), a first placement groove (6) is opened at the opposite end of the fixing plate (3), a sliding rod (7) is fixedly installed in the first placement groove (6), a sliding block (8) is movably installed on the sliding rod (7), a fixing seat (9) is fixedly installed in the middle of the sliding block (8), a fixing groove (10) is symmetrically opened at the lower end of the fixing seat (9), a fixing block (11) is symmetrically fixedly installed at the upper end of the overlock machine cutter (2), the fixing block (11) is fixedly installed in the corresponding fixing groove (10) by fastening bolts, a driving cavity (12) is opened in the top plate (1), and the upper end of the top plate (1) is fixed A connecting plate (13) is installed, and a driving mechanism capable of driving the connecting plate (13) to move up and down is provided in the driving chamber (12). A connecting pipe (14) is fixedly installed in the fixing plate (3), and a suction head (15) is fixedly installed at one end of the connecting pipe (14) close to the overlock machine cutter (2), and a first connecting head (16) is fixedly installed at one end of the connecting pipe (14) away from the overlock machine cutter (2). A supporting plate (17) is fixedly installed at one end of the fixing plate (3) away from the overlock machine cutter (2), and a vacuum cleaner (18) is provided at the upper end of the supporting plate (17). A second connecting head (19) is fixedly installed at one end of the vacuum cleaner (18), and the second connecting head (19) and the corresponding first connecting head (16) are connected by adsorption through a first magnet.
2. The thread cutting device for an overlock sewing machine according to claim 1, characterized in that: The driving mechanism comprises a control motor (20) fixedly mounted in the driving cavity (12); a first gear (21) is fixedly mounted on the output end of the control motor (20); a rotating shaft (22) is symmetrically and movably mounted in the driving cavity (12); a second gear (23) is fixedly mounted on the rotating shaft (22); the second gear (23) is symmetrically arranged at both ends of the first gear (21); the second gear (23) is respectively meshed with the first gear (21); a third gear (24) is fixedly mounted on the rotating shaft (22); a rack (25) is symmetrically and fixedly mounted on the connecting plate (13); the third gear (24) and the rack (25) correspond one to one; the third gear (24) is a half-tooth gear and the third gear (24) at one end can and can only be meshed with the corresponding rack (25) at one end at the same time.
3. The thread cutting device for an overlock sewing machine according to claim 2, characterized in that: A guide rod (26) is symmetrically fixedly mounted on the upper end of the fixing seat (9); the guide rod (26) is movably mounted on the top plate (1) and a limit plate (27) is fixedly mounted on the upper end.
4. The thread cutting device for an overlock sewing machine according to claim 3, characterized in that: The upper end of the support plate (17) is provided with a snap-fitting groove (28), in which a second magnet (29) is symmetrically fixedly installed, and the second magnet (29) can adsorb and fix the vacuum cleaner (18).
5. The thread cutting device for an overlock sewing machine according to claim 4, characterized in that: A spring (30) is fixedly mounted on the lower end of the slider (8).