A rope cutting device and an embroidery machine

Abstract

The application provides a rope cutting device and an embroidery machine. The rope cutting device comprises a shell, a driving device arranged on the shell, a transmission device matched with the driving device, a transmission body of the transmission device, a first connecting block connected with the transmission body and capable of reciprocating along the transmission direction of the transmission body, a transmission assembly connecting the first connecting block with a scissors assembly, the scissors assembly comprising a static blade assembly and a dynamic blade assembly, the transmission assembly having a first motion state and a second motion state, the static blade assembly and the dynamic blade assembly moving together when the transmission assembly is in the first motion state, a limiting groove structure matched with the first motion track, and the dynamic blade assembly approaching the static blade assembly when the transmission assembly is in the second motion state. The defects of large workload and missed or wrong cutting in the prior art can be overcome.

Description

Technical Field

[0001] This invention relates to the field of embroidery machine technology, specifically to a rope-cutting device and an embroidery machine. Background Technology

[0002] A cord embroidery machine is used to fix embroidery cords to a substrate using fine embroidery thread. Discontinuous patterns are embroidered on the substrate, and a transition thread appears between these patterns. This transition thread needs to be manually cut off with special scissors after the pattern is completed. This manual work is labor-intensive and prone to omissions or errors. Furthermore, the cord must also be manually cut after each pattern is finished. If the cord is not cut, the embroidery surface will be very messy, and this messiness is uncontrollable, potentially causing flat embroidery threads to entangle. Summary of the Invention

[0003] Therefore, the present invention provides a rope cutting device and an embroidery machine, which can overcome the shortcomings of the prior art in that manual rope cutting is labor-intensive and has the problems of missed or incorrect cutting.

[0004] To address the aforementioned problems, the present invention provides a rope-cutting device, comprising a housing, a driving device disposed on the housing, and a transmission device adapted to the driving device. The transmission device has a transmission body, and a first connecting block is connected to the transmission body to enable the first connecting block to reciprocate along the transmission direction of the transmission body. The first connecting block is connected to a scissor assembly via a transmission component. The scissor assembly includes a stationary blade assembly and a moving blade assembly. The transmission component has a first motion state and a second motion state. When the transmission component is in the first motion state, the stationary blade assembly and the moving blade assembly move together. When the transmission component is in the second motion state, the moving blade assembly moves closer to the stationary blade assembly.

[0005] In some embodiments, the transmission assembly includes a first connecting plate and a second connecting plate connected by an elastic member. One end of the first connecting plate is connected to a first connecting block, and the other end is connected to the moving blade assembly. The second connecting plate is connected to the stationary blade assembly. The second connecting plate is also connected to a limiting member, which slides in a limiting groove on the housing to enable the first connecting plate and the second connecting plate to reciprocate along a first motion trajectory. The limiting groove structure is adapted to the first motion trajectory. When the limiting member moves to the front end of the limiting groove, the first connecting plate reciprocates along a second motion trajectory.

[0006] In some embodiments, the first connecting block has a vertical groove, in which a sliding member is slidably disposed, and the sliding member is connected to the first connecting plate.

[0007] In some embodiments, the transmission assembly further includes a third connecting plate, one side of which has a first slider arranged horizontally and adapted to a first slide rail arranged on the housing, and the other side of which has a second slider arranged vertically and adapted to a second slide rail on the second connecting plate.

[0008] In some embodiments, the transmission body is a belt, a lead screw, or a rack.

[0009] In some embodiments, the elastic element is a spring or a rubber band.

[0010] In some embodiments, the stationary blade assembly has a first blade body that cooperates with the moving blade assembly, and the cutting edge of the first blade body has a clamping groove.

[0011] In some embodiments, the stationary blade assembly includes a blade holder, a first blade body fixedly mounted on the blade holder, and a wire clamping groove provided on the blade holder.

[0012] In some embodiments, the opening of the clamping groove has a guide slope on the side near the first cutter body.

[0013] In some embodiments, the moving blade assembly includes a second blade body, one end of which is rotatably connected to the stationary blade assembly, and the other end of which is connected to a first connecting plate via a fourth connecting plate.

[0014] In some embodiments, the fourth connecting plate is connected to the first connecting plate by a torsion spring.

[0015] In some embodiments, the moving blade assembly further includes a pressure plate, one end of which is rotatably connected to the stationary blade assembly, and the other end of which is connected to the first connecting plate via the fourth connecting plate. The second blade is located at the bottom of the pressure plate and moves together with the pressure plate.

[0016] The first connecting plate is provided with a third slider, and the second connecting plate is provided with a third slide rail, wherein the third slider is adapted to the third slide rail.

[0017] This application also provides an embroidery machine, including the aforementioned cord-cutting device.

[0018] This invention provides a rope-cutting device and an embroidery machine. Through the coordinated action of a drive device and a transmission device, the movement of the transmission component is achieved. The scissor component connected to the transmission component is divided into a moving blade component and a stationary blade component. In the first movement state, the moving blade component and the stationary blade component move together to the rope position, placing the rope between them. The stationary blade component hooks the rope, providing a certain degree of fixation. In the second movement state, the moving blade component moves closer to the stationary blade component to cut the rope, reducing rope sway and improving the cutting effect. Furthermore, by performing mechanical cutting and embroidery work simultaneously, the workload of manual cutting is reduced, effectively avoiding incorrect or missed cuts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the rope-cutting device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the rope-cutting device according to an embodiment of the present invention;

[0021] Figure 3 The rope-cutting device of this invention is an embodiment of the present invention. Figure 2 Another perspective structural diagram;

[0022] Figure 4 This is a schematic diagram of the scissor assembly structure of the rope-cutting device according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the third connecting plate and related slider structure of the rope cutting device according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the rope-cutting device according to another embodiment of the present invention (belt transmission);

[0025] Figure 7 This is a schematic diagram of the rope-cutting device according to another embodiment of the present invention (rack and pinion transmission).

[0026] The reference numerals in the attached figures are as follows:

[0027] 1. Housing; 101. Limiting groove; 102. First slide rail; 2. Drive device; 3. Transmission device; 301. Transmission body; 302. Support rod; 303. First connecting block; 304. Sliding component; 305. Fifth connecting plate; 4. Transmission assembly; 401. First connecting plate; 4011. Third slider; 402. Second connecting plate; 4021. Third slide rail; 403. Elastic component; 404. Limiting component; 405. Third connecting plate; 406. First slider; 407. Second slider; 5. Scissors assembly; 501. Stationary blade assembly; 5011. Wire clamping groove; 5012. Blade holder; 502. Moving blade assembly; 5021. Fourth connecting plate; 5022. Pressure plate; 2023. Torsion spring. Detailed Implementation

[0028] See also Figures 1 to 7 As shown, according to an embodiment of the present invention, a rope cutting device is provided, including a housing 1, a driving device 2 and a transmission device 3 adapted to the driving device 2. The transmission device 3 has a transmission body 301, and a first connecting block 303 is connected to the transmission body 301 so that the first connecting block 303 can reciprocate along the transmission direction of the transmission body 301. The first connecting block 303 is connected to a scissor assembly 5 through a transmission component 4. The scissor assembly 5 includes a stationary blade assembly 501 and a moving blade assembly 502. The transmission component 4 has a first motion state and a second motion state. When the transmission component 4 is in the first motion state, the stationary blade assembly 501 and the moving blade assembly 502 move together. When the transmission component 4 is in the second motion state, the moving blade assembly 502 moves closer to the stationary blade assembly 501. In the prior art, after the rope embroidery is completed, workers usually cut the transition section or the end point rope separately, which is labor-intensive and prone to errors and omissions. Through the coordinated action of the drive device 2 and the transmission device 3, the transmission component 4 is moved. The scissor component 5, connected to the transmission component 4, is divided into a moving blade component 502 and a stationary blade component 501. In the first movement state, the moving blade component 502 and the stationary blade component 501 move together to the position of the rope, placing the rope between them. The stationary blade component 501 hooks the rope, providing a certain degree of fixation. In the second movement state, the moving blade component 502 moves closer to the stationary blade component 501 to cut the rope, reducing rope sway and improving the cutting effect. Furthermore, by performing mechanical cutting and embroidery work simultaneously, the workload of manual cutting is reduced, effectively preventing incorrect or missed cuts.

[0029] In one specific embodiment, the transmission assembly 4 includes a first connecting plate 401 and a second connecting plate 402 connected by an elastic member 403. One end of the first connecting plate 401 is connected to a first connecting block 303, and the other end is connected to the moving blade assembly 502. The second connecting plate 402 is connected to the stationary blade assembly 501. The second connecting plate 402 is also connected to a limiting member 404. The limiting member 404 is slidably engaged with a limiting groove 101 on the housing 1 so that the first connecting plate 401 and the second connecting plate 402 can reciprocate together along a first motion trajectory. The limiting groove 101 is adapted to the first motion trajectory. When the limiting member 404 moves to the front end of the limiting groove 101, the first connecting plate 401 reciprocates along a second motion trajectory. The first connecting plate 401 and the second connecting plate 402 are flexibly connected by the elastic element 403. When the first connecting block 303 moves forward with the transmission device 3, the first connecting plate 401 also moves forward. Due to the presence of the elastic element 403, the first connecting plate 401 and the second connecting plate 402 move forward together, thereby driving the stationary blade assembly 501 and the moving blade assembly 502 to move forward simultaneously. At this time, the limiting element 404 on the second connecting plate 402 slides within the limiting groove 101. When the limiting element 404 slides to the front end of the limiting groove 101, the second connecting plate 402 stops moving due to the limiting effect. This is the first movement state of the transmission assembly 4. At this time, the moving blade assembly 502 and the stationary blade assembly 501 move forward together to the position of the rope, and the rope is placed between the moving blade assembly 502 and the stationary blade assembly 501. As the first connecting block 303 continues to move, the first connecting plate 401 continues to move forward. At this time, the elastic element is stretched, and the first connecting plate 401 drives the moving blade assembly 502 to continue moving closer to the stationary blade assembly 501, cutting the rope. After the rope is cut, the first connecting block 303 moves back, driving the first connecting plate 401 to move back. At this time, under the tension of the elastic element, the first connecting plate 401 and the second connecting plate 402 reset and then move together to the starting position. Through this structural design, the two motion states of the moving blade assembly 502 and the stationary blade assembly 501 are completed using the same drive device 2, and the rope cutting work is completed smoothly. The structure is simple, easy to maintain, and convenient to operate. Compared with the multi-motor driven cutting work of the prior art, the cost is lower. The structure of the limiting groove 101 is designed to match the first motion trajectory of the second connecting plate 402, which can effectively ensure that the scissor assembly 5 moves along the limited path and avoid the problem of deviation of the motion path.

[0030] Specifically, drive device 2 is a motor.

[0031] Specifically, the first connecting block 303 is connected to the first connecting plate 401 through the fifth connecting plate 305.

[0032] In one specific embodiment, the first connecting block 303 has a vertical groove, within which a sliding member 304 is slidably disposed, and the sliding member 304 is connected to the first connecting plate 401. Since rope cutting devices often need to be used in conjunction with rope embroidery machinery, and due to installation location or mechanical structure design considerations, certain mechanical structures need to be effectively avoided, resulting in the transmission assembly 4 and the scissor assembly 5 needing to move along complex trajectories, including movements in both the X and Y directions. In such cases, most existing technologies would increase the complexity of the mechanism and control logic by adding a drive device or resetting the control logic to meet the movement requirements. This leads to higher production and maintenance costs for the device manufacturer. This application achieves the Y-direction movement of the transmission assembly 4 by setting a vertical groove in the first connecting block 303, resulting in a simple structure and reasonable design. Since there is movement in both the X and Y directions, the limiting groove structure can be a curved structure, which has the same movement trajectory as the second connecting plate 402.

[0033] In one specific embodiment, the transmission assembly 4 further includes a third connecting plate 405. One side of the third connecting plate 405 has a horizontally arranged first slider 406, which is adapted to a first slide rail 102 on the housing 1. The other side of the third connecting plate 405 has a vertically arranged second slider 407, which is adapted to a second slide rail on the second connecting plate 402. By setting the third connecting plate 405 and the first slider 406 on one side of the third connecting plate 405, the first slider 406, in cooperation with the first slide rail 102, enables stable operation of the third connecting plate 405 in the X direction. Two second sliders 407 are arranged on the other side of the third connecting plate 405, and the second sliders 407 are used in cooperation with the second slide rail on the second connecting plate 402 to achieve stable operation of the second connecting plate 402 in the Y direction. Due to the action of the sliders and slide rails, the second connecting plate 402 can also operate stably in the X direction along with the third connecting plate 405. This structural design ensures stable operation of the second connecting plate 402 and the first connecting plate 401, which is flexibly connected to it, in both the X and Y directions, guaranteeing the stability of the equipment and improving the accuracy of the rope cutting process. Furthermore, it features a simple structure, convenient maintenance, and low cost.

[0034] In one specific embodiment, the transmission body 301 is a belt, a lead screw, or a rack and pinion. A lead screw structure provides stable and reliable operation and a simple structure. Alternatively, a belt structure can further reduce product costs while meeting transmission requirements. Of course, the transmission body 301 can also be other devices or structures capable of transmission.

[0035] Specifically, a support rod 302 is provided on the side of the transmission body 301. Two support rods 302 can be provided, which are arranged on opposite sides to improve the stability of the transmission process.

[0036] In one specific embodiment, the elastic element 403 is a spring or a rubber band. Both springs and rubber bands can serve as elastic elements to form a flexible connection between the first connecting plate 401 and the second connecting plate 402; other structures capable of achieving a flexible connection or traction function are also acceptable. Preferably, the elastic element 403 is a spring.

[0037] In one specific embodiment, the stationary blade assembly 501 has a first blade body that cooperates with the moving blade assembly 502, and the cutting edge of the first blade body has a wire-clamping groove 5011. The wire-clamping groove 5011 on the blade body can confine the rope within the groove 5011, effectively clamping the rope and preventing it from swaying during the movement of the moving blade towards the stationary blade, resulting in better cutting performance.

[0038] In one specific embodiment, the stationary blade assembly 501 includes a blade holder 5012, with a first blade body fixedly mounted on the blade holder 5012. The blade holder 5012 is provided with a wire clamping groove 5011. Designing the blade holder 5012 separately from the blade body reduces costs. Because the blade body is a consumable part, while the blade holder is less prone to damage, if the blade body is damaged, it can be replaced separately, effectively reducing costs.

[0039] In one specific embodiment, the opening of the wire clamping groove 5011 has a guide slope on the side near the first cutter body. Providing a guide slope at the opening of the wire clamping groove 5011 ensures that the rope slides smoothly into the groove, improving the rope cutting effect and preventing missed cuts.

[0040] In one specific embodiment, the moving blade assembly 502 includes a second blade body, one end of which is rotatably connected to the stationary blade assembly 501, and the other end of which is connected to the first connecting plate 401 via a fourth connecting plate 5021. The rotatable connection of one end of the second blade body to the stationary blade assembly allows the moving blade assembly 502 to move closer to the stationary blade assembly 501, thereby cutting the rope.

[0041] In one specific embodiment, the fourth connecting plate 5021 is connected to the first connecting plate 401 via a torsion spring 5023. Connecting the moving blade assembly 502 to the first connecting plate 401 via the torsion spring 5023 allows for better clamping force between the moving blade assembly 502 and the stationary blade assembly 501, resulting in better rope cutting.

[0042] In one specific embodiment, the moving blade assembly 502 further includes a pressure plate 5022. One end of the pressure plate 5022 is rotatably connected to the stationary blade assembly 501, and the other end of the pressure plate 5022 is connected to the first connecting plate 401 via the fourth connecting plate 5021. The second blade is located at the bottom of the pressure plate 5022 and moves together with the pressure plate 5022. The pressure plate 5022 structure, in conjunction with the blade holder 5012, achieves a clamping effect on the first and second blades, resulting in better cutting performance.

[0043] In one specific embodiment, a third slider 4011 is provided on the first connecting plate 401, and a third slide rail 4021 is provided on the second connecting plate 402. The third slider 4011 is adapted to the third slide rail 4021. Providing the third slider 4011 on the first connecting plate 401 to cooperate with the third slide rail 4021 on the second connecting plate 402 improves the operational stability of the first connecting plate 401.

[0044] This application also provides an embroidery machine, including the aforementioned cord-cutting device.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A rope-cutting device, characterized in that, The device includes a housing (1), on which a drive device (2) is provided, and a transmission device (3) adapted to the drive device (2). The transmission device (3) has a transmission body (301), and a first connecting block (303) is connected to the transmission body (301) so that the first connecting block (303) can reciprocate along the transmission direction of the transmission body (301). The first connecting block (303) is connected to the scissor assembly (5) through a transmission component (4). The scissor assembly (5) includes a stationary blade assembly (501) and a moving blade assembly (502). The transmission component (4) has a first motion state and a second motion state. When the transmission component (4) is in the first motion state, the stationary blade assembly (501) and the moving blade assembly (502) move together. When the transmission component (4) is in the second motion state, the moving blade assembly (502) moves closer to the stationary blade assembly (501). The transmission assembly (4) includes a first connecting plate (401) and a second connecting plate (402) connected by an elastic member (403). One end of the first connecting plate (401) is connected to the first connecting block (303), and the other end is connected to the moving blade assembly (502). The second connecting plate (402) is connected to the stationary blade assembly (501). The second connecting plate (402) is also connected to a limiting member (404). The limiting member (404) is slidably engaged with the limiting groove (101) on the housing (1) so that the first connecting plate (401) and the second connecting plate (402) can reciprocate along a first motion trajectory. The structure of the limiting groove (101) is adapted to the first motion trajectory. When the limiting member (404) moves to the front end of the limiting groove (101), the first connecting plate (401) reciprocates along a second motion trajectory. The first connecting block (303) has a vertical groove, and a sliding member (304) is slidably disposed in the groove. The sliding member (304) is connected to the first connecting plate (401). The transmission assembly (4) further includes a third connecting plate (405). The third connecting plate (405) has a first slider (406) arranged horizontally on one side. The first slider (406) is adapted to the first slide rail (102) arranged on the housing (1). The third connecting plate (405) has a second slider (407) arranged vertically on the other side. The second slider (407) is adapted to the second slide rail on the second connecting plate (402).

2. The rope-cutting device according to claim 1, characterized in that, The transmission body (301) is a belt, a lead screw, or a rack.

3. The rope-cutting device according to claim 1, characterized in that, The elastic element (403) is a spring or a rubber band.

4. The rope-cutting device according to claim 1, characterized in that, The stationary blade assembly (501) has a first blade body that cooperates with the moving blade assembly (502), and the cutting edge of the first blade body has a wire clamping groove (5011).

5. The rope-cutting device according to claim 1, characterized in that, The stationary blade assembly (501) includes a blade holder (5012), a first blade body is fixed on the blade holder (5012), and a wire clamping groove (5011) is provided on the blade holder (5012).

6. The rope-cutting device according to claim 4 or 5, characterized in that, The opening of the clamping groove (5011) has a guide slope on the side near the first cutter body.

7. The rope-cutting device according to claim 1, characterized in that, The moving blade assembly (502) includes a second blade body, one end of which is rotatably connected to the stationary blade assembly (501), and the other end of which is connected to the first connecting plate (401) via a fourth connecting plate (5021).

8. The rope-cutting device according to claim 7, characterized in that, The fourth connecting plate (5021) is connected to the first connecting plate (401) by a torsion spring (5023).

9. The rope-cutting device according to claim 7, characterized in that, The moving blade assembly (502) also includes a pressure plate (5022), one end of which is rotatably connected to the stationary blade assembly (501), and the other end of which is connected to the first connecting plate (401) through the fourth connecting plate (5021). The second blade is located at the bottom of the pressure plate (5022) and moves together with the pressure plate (5022).

10. The rope-cutting device according to claim 1, characterized in that, The first connecting plate (401) is provided with a third slider (4011), and the second connecting plate (402) is provided with a third slide rail (4021). The third slider (4011) is adapted to the third slide rail (4021).

11. An embroidery machine, characterized in that, Includes the rope-cutting device as described in any one of claims 1-10.

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