Three-color rope embroidery device

Abstract

The utility model discloses a three-color rope embroidery device and relates to the technical field of embroidery machines. Comprising a mounting base and three groups of rope embroidery assemblies mounted on the mounting base, any group of rope embroidery components comprises a looping head, a driving mechanism and a thread feeding component, the driving mechanism is used for driving the looping head to rotate so as to be matched with the needle bar to realize looping and rope swinging actions, and the thread feeding component is arranged above the looping head and is used for feeding threads to the looping head; the driving mechanism comprises a driving motor and a conveying belt assembly and drives the looping head to rotate through the conveying belt assembly. A mounting containing cavity is further formed in the bottom of the mounting base, and the three conveying belt assemblies are all arranged in the mounting containing cavity. According to the three-color rope embroidery device disclosed by the utility model, the structural form of the driving mechanisms is simplified, and the conveyor belt assemblies of the three groups of driving mechanisms are collectively arranged in the mounting base, so that the mounting volume of the device is effectively reduced, and the mounting space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a three-color rope embroidery device. Background Art

[0002] The single-color cord embroidery device has stable and excellent performance and has been widely praised by people for many years. At present, there are still a large number of sales in the market every year. However, people's demand for the diversity, beauty and individuality of embroidery products is endless. With the hot sales of single-color cord embroidery products for many years, it has gradually failed to meet people's visual needs. In order to bring different aesthetics to people's vision, the market began to hope for the emergence of multi-color cord embroidery products.

[0003] Based on this, the Chinese invention with publication number CN116949707A discloses a three-color rope embroidery device, including a side connecting frame connected to the machine head, a rotary drive mechanism connected to the side connecting frame, a rotary component connected to the rotary output shaft of the rotary drive mechanism, and a first lifting mechanism for driving the rotary component to rise and fall, the rotary component includes three groups of thread outlet mechanisms and three groups of thread clamping assemblies, the thread clamping assemblies are connected to the corresponding thread outlet mechanisms, the thread clamping assemblies are used to fix or release the embroidery rope, and the three looping heads of the three groups of thread outlet mechanisms are located on the same arc concentric with the rotary output shaft. The invented device changes colors by rotating multiple looping heads, so that the color changing speed is fast and the precision is high, and it is easy to be used in combination with other embroidery devices.

[0004] However, the invention still has the following defects:

[0005] 1. The structure of its rotary drive mechanism is relatively complex, the power transmission is not accurate and fast enough, and the overall volume of the rotary drive mechanism is relatively large, which will occupy more installation space.

[0006] 2. When the rotary drive mechanism is working to feed the thread, the traction control of the embroidery rope is inaccurate, which may cause the loop head and the tensioning component to not cooperate well, thereby pulling the embroidery rope, and causing the embroidery rope to break.

[0007] 3. The three strands of embroidery ropes are easily entangled and knotted, hindering the normal operation of the device. Utility Model Content

[0008] The utility model provides a three-color rope embroidery device, which solves some of the above-mentioned technical problems by simplifying the structural form of the driving mechanism and collectively arranging the conveyor belt components of the three groups of driving mechanisms into a mounting base to effectively reduce the installation volume of the device, thereby saving installation space.

[0009] The utility model solves the above-mentioned problem through a technical scheme: a three-color rope embroidery device is provided, comprising a mounting base and three groups of rope embroidery components mounted on the mounting base; any group of rope embroidery components comprises a looping head, a driving mechanism, and a thread feeding component, the driving mechanism is used to drive the looping head to rotate to cooperate with the needle bar to realize the looping rope swinging action, and the thread feeding component is arranged above the looping head to feed the thread to the looping head; the driving mechanism comprises a driving motor and a conveyor belt component, the looping head and the driven pulley of the conveyor belt component are coaxially arranged, the driving pulley of the conveyor belt component is arranged on the output shaft of the driving motor, and the driving mechanism drives the looping head to rotate through the conveyor belt component; a mounting accommodating cavity is also provided at the bottom of the mounting base, and the three groups of conveyor belt components are all arranged in the mounting accommodating cavity.

[0010] Furthermore, it also includes a tensioning assembly for tensioning the embroidery rope sent to the looping head and arranged directly below the corresponding thread feeding assembly.

[0011] Furthermore, the wire feeding assembly includes a wire box and a wire feeding wheel. The wire box has openings upward and downward. A mounting hole is provided on a set of opposite side walls of the wire box. A latch is radially arranged in the mounting hole. Pin holes are provided at both ends of the axle of the wire feeding wheel. The wire feeding wheel is installed in the wire box by respectively extending both ends of its axle into a mounting hole and respectively cooperating with the corresponding latch.

[0012] Furthermore, it also includes at least one protection spring sleeved on the latch, one end of the protection spring is pressed against the side wall of the mounting hole, and the other end is pressed against the axle of the wire feeding wheel.

[0013] Furthermore, the installation base includes a horizontal bottom plate and at least one vertical plate body, the vertical plate body and the horizontal bottom plate are fixedly connected, and the installation accommodating cavity is opened on the horizontal bottom plate.

[0014] Furthermore, it also includes at least one lifting cylinder, and at least one vertical plate is fixedly mounted with at least one corresponding lifting cylinder, and the output telescopic shaft end of at least one lifting cylinder is fixed on the frame of the embroidery machine, and the rope embroidery assembly is correspondingly lifted and moved as a whole by at least one lifting cylinder.

[0015] Furthermore, at least one of the side walls of the vertical plate is provided with a protective limiter for locking the height position of the rope embroidery assembly.

[0016] Furthermore, a lifting slide is provided on the vertical plate body with the lifting cylinder, and a lifting guide rail is correspondingly provided on the frame of the embroidery machine, and the lifting slide is movably arranged on the lifting guide rail.

[0017] Furthermore, the tensioning assembly includes a tensioning rocker arm, a torsion spring, and a swing shaft. The swing shaft is rotatably plugged into the vertical plate. The tensioning rocker arm is fixedly connected to one end of the swing shaft. The torsion spring is arranged on the swing shaft to control the tensioning rocker arm to swing around the swing shaft away from the looping head.

[0018] Furthermore, it also includes a Hall sensor element and a positioning pendulum. The Hall sensor element is arranged on the vertical plate. The positioning pendulum is fixedly connected to the other end of the swing shaft to swing synchronously with the tensioning pendulum. The Hall sensor element is used to identify the swing position of the positioning pendulum.

[0019] Furthermore, each vertical plate is correspondingly provided with at least one guide rope ring and / or guide rope wheel.

[0020] Beneficial effects of the utility model:

[0021] 1. This device simplifies the structural form of the driving mechanism so that the conveyor belt components of the three driving mechanisms can be collectively installed in the installation accommodating cavity of the installation base, thereby effectively reducing the installation volume of the three rope embroidery components and effectively saving installation space.

[0022] 2. The device also uses Hall sensing elements to detect the position status of the tensioning component in real time, so that the computer can control the operating status of the driving mechanism and the feeding rate of the embroidery rope according to the detection signal of the Hall sensing element, so as to accurately control the tension of the embroidery rope and effectively prevent the embroidery rope from breaking.

[0023] 3. The device is also provided with a lifting cylinder to drive the overall lifting and movement of the cord embroidery assembly, so that the cord embroidery assembly can be raised away from or close to the cord embroidery fabric according to actual needs, thereby forming corresponding operating spaces of different sizes between the looping head and the cord embroidery fabric, so that the user can flexibly adjust the cord embroidery process or the flat embroidery process to perform embroidery operations according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The overall structure diagram of the three-color rope embroidery device of this embodiment;

[0026] Figure 2 is a structural diagram of the driving mechanism of this embodiment;

[0027] Figure 3 is a structural diagram of the wire feeding assembly of this embodiment;

[0028] Figure 4 is a structural diagram of the tensioning assembly of this embodiment;

[0029] Figure 5 is a rear structural diagram of the tensioning assembly of this embodiment;

[0030] Figure 6 is a structural diagram of the mounting base of this embodiment;

[0031] 1-installation base, 11-horizontal bottom plate, 12-vertical plate, 13-lifting slide, 14-lifting guide rail, 21-looping head, 22-driving mechanism, 221-driving motor, 222-conveyor belt assembly, 23-wire feeding assembly, 231-wire box, 232-wire feeding wheel, 233-installation hole, 234-latch, 235-protection spring, 24-tensioning assembly, 241-tensioning rocker, 242-torsion spring, 243-swinging shaft, 3-installation accommodating cavity, 4-lifting cylinder, 5-protection limiter, 6-Hall sensing element, 7-positioning rocker, 8-guide rope ring, 9-guide rope wheel. DETAILED DESCRIPTION

[0032] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0033] See also Figures 1 to 6 A three-color rope embroidery device according to a specific embodiment of the utility model comprises a mounting base 1 and three groups of rope embroidery components mounted on the mounting base 1; any group of rope embroidery components comprises a looping head 21, a driving mechanism 22, and a thread feeding assembly 23, the driving mechanism 22 is used to drive the looping head 21 to rotate to cooperate with the needle bar to realize the looping rope swinging action, and the thread feeding assembly 23 is arranged above the looping head 21 to feed the thread to the looping head 21; the driving mechanism 22 comprises a driving motor 221 and a conveyor belt assembly 222, the looping head 21 and the driven pulley of the conveyor belt assembly 222 are coaxially arranged, the active pulley of the conveyor belt assembly 222 is arranged on the output shaft of the driving motor 221, and the driving mechanism 22 drives the looping head 21 to rotate through the conveyor belt assembly 222; a mounting accommodating cavity is also provided at the bottom of the mounting base 1, and the three groups of conveyor belt assemblies 222 are all arranged in the mounting accommodating cavity 3.

[0034] Specifically, see Figure 6In this embodiment, the mounting base 1 includes a horizontal bottom plate 11 in a horizontal posture and three vertical plates 12 vertically fixedly mounted on the horizontal bottom plate 11. The bottom of the horizontal bottom plate 11 is also provided with an installation accommodating cavity 3, and the thread feeding assemblies 23 of the three groups of rope embroidery assemblies are respectively mounted at the upper ends of the three vertical plates 12.

[0035] Also, see Figure 1 , Figure 2 , Figure 6 The horizontal bottom plate 11 is also provided with an installation area dedicated to installing a driving motor 221. The driving motors 221 of the three driving mechanisms 22 are all fixedly installed in the installation area, and the output telescopic shafts of the three driving motors 221 are all extended into the installation accommodating cavity 3. The three conveyor belt assemblies 222 are all arranged in the installation accommodating cavity 3, and the axles of the driven pulleys of the three conveyor belt assemblies 222 also extend downward from the horizontal bottom plate 11. The three looping heads 21 are respectively fixedly installed on the axles of the three driven pulleys, thereby forming a looping and swinging action of the three embroidery ropes controlled by the three rope embroidery assemblies around the needle bar.

[0036] In addition, the present application also deliberately extends the height of a vertical plate 12, by fixing a lifting cylinder 4 on the extended vertical plate 12, and setting the lifting cylinder 4 vertically upward and fixing the axial end of the output telescopic shaft of the lifting cylinder 4 to the frame structure of the embroidery machine, so that the entire three-color rope embroidery device can be raised or lowered by the lifting cylinder 4, so that the distance between the loop head 21 and the cloth surface used for embroidery can be changed accordingly, thereby meeting different embroidery requirements.

[0037] Moreover, in order to ensure the stable lifting and moving of the three-color rope embroidery device of this embodiment, a lifting slide 13 is also provided on the vertical plate 12 with the lifting cylinder 4, and a lifting guide rail 14 is also provided on the frame of the embroidery machine, and the lifting slide 13 is movably arranged on the lifting guide rail 14.

[0038] In order to prevent the three-color rope embroidery device of this embodiment from falling suddenly when the lifting cylinder 4 fails, a protective stopper 5 is also provided at the side of the vertical plate 12 with the lifting cylinder 4. The protective stopper 5 is rotatably arranged at the side of the vertical plate 12 through a hinge shaft, and an elastic abutment is also provided between the protective stopper 5 and the vertical plate 12. The elastic abutment is sleeved on the hinge shaft, and the elastic abutment is used to appropriately increase the rotation resistance of the protective stopper 5. Correspondingly, when the mounting base 1 is suspended at a certain height position, the technician can manually move the protective stopper 5 to a non-vertical position corresponding to the frame structure of the embroidery machine, and under the action of the elastic abutment, the protective stopper 5 can no longer rotate to block and limit with the frame structure of the embroidery machine, thereby preventing the entire three-color rope embroidery device from falling suddenly.

[0039] It should be noted that: in other embodiments, the specific number of vertical plates 12 can also be one or two, and the three wire feeding assemblies 23 and the three tensioning assemblies 24 can be arranged on one vertical plate 12 in a corresponding manner, or respectively on two vertical plates 12.

[0040] See also Figure 1 , Figure 4 , a tensioning assembly 24 is provided on each vertical plate 12, and each tensioning assembly 24 is correspondingly provided directly below a thread feeding assembly 23, so as to provide appropriate convenience for the embroidery rope to be threaded. In addition, in the present embodiment, the tensioning assembly 24 comprises a tensioning swing rod 241, a torsion spring 242, and a swing shaft 243, the swing shaft 243 is rotatably plugged and arranged on the vertical plate 12, the upper end of the tensioning swing rod 241 is fixedly connected to the front end of the swing shaft 243, the torsion spring 242 is sleeved on the swing shaft 243, and one end of the torsion spring 242 is fixedly connected to the tensioning swing rod 241, and the other end abuts against the groove wall of the fan-shaped groove on the vertical plate 12. Please refer to Figure 4 When the loop head 21 is pulled, the tensioning rod 241 is swung toward the left side of the loop head 21 to loosen the embroidery rope. When the loop head 21 is pulled, the tensioning rod 241 is swung toward the right side to loosen the embroidery rope. When the loop head 21 is pulled, the tensioning rod 241 is swung toward the left side to loosen the embroidery rope. When the loop head 21 is pulled, the tensioning rod 241 is swung toward the right side to loosen the embroidery rope. When the loop head 21 is loosening the embroidery rope, the tensioning rod 241 is swung toward the right side to loosen the embroidery rope under the action of the torsion spring 242 to properly tighten the embroidery rope. This ensures that the embroidery rope is always in a reasonable tension state and the quality of the rope embroidery is guaranteed.

[0041] It should be noted that: To facilitate those skilled in the art to understand the structure of the tensioning assembly 24, the upper end of the torsion spring 242 is Figure 1 and Figure 4 In the figures, the torsion spring 242 is in the posture of extending out of the vertical plate body 12 . However, in actual application, the upper end of the torsion spring 242 is in contact with the side wall of the fan-shaped groove of the vertical plate body 12 .

[0042] See also Figure 5In this embodiment, a Hall sensor element 6 and a positioning pendulum 7 are further provided on the back of the vertical plate body 12. The upper end of the positioning pendulum 7 is fixedly connected to the rear end of the swing shaft 243 to swing synchronously with the tensioning pendulum 241, and the Hall sensor element 6 is correspondingly fixedly installed between the vertical plate body 12 and the positioning pendulum 7; correspondingly, the Hall sensor element 6 can detect the real-time position of the positioning pendulum 7 to obtain the actual swing position of the tensioning pendulum 241, and send the detection signal to the control computer. The control computer can control the wire feeding speed of the wire feeding assembly 23 and the operating speed of the driving motor 221 according to the specific position of the tensioning pendulum 241, so as to further accurately control the wire feeding speed and the tension of the embroidery rope.

[0043] See also Figure 5 In the present embodiment, the wire feeding assembly 23 comprises a wire box 231 and a wire feeding wheel 232. The wire box 231 is hollow inside and its inner cavity has upward and downward openings. A mounting hole 233 is relatively provided on a set of opposite side walls of the wire box 231. A latch 234 is radially provided in the mounting hole 233. Pin holes are provided at both ends of the axle of the wire feeding wheel 232. The wire feeding wheel 232 is installed in the wire box 231 by respectively extending the two ends of its axle into a mounting hole 233 and respectively cooperating with the corresponding latch 234 for insertion. In this embodiment, the embroidery rope first passes through the wire box 231 vertically from top to bottom, then extends to the tensioning assembly 24, and finally passes through the loop head 21. When passing through the wire box 231, the embroidery rope is pressed against one side surface of the wire feeding wheel 232. The wire feeding wheel 232 rotates to guide the embroidery rope to extend downward, and the wire box 231 can correspondingly limit the embroidery rope within the cavity of the box body to prevent the embroidery rope from moving around and affecting the quality of the rope embroidery.

[0044] In addition, in this embodiment, a protective spring 235 is provided on both sides of the end of the axle of the thread feeding wheel 232, and one end of the two protective springs 235 is pressed against the side wall of the mounting hole 233 and the other end is pressed against the side wall of the axle of the thread feeding wheel 232, and the two protective springs 235 are sleeved on the latch 234. Correspondingly, the thread feeding wheel 232 can also compress the protective spring 235 correspondingly under the tensioning pressure of the embroidery rope to release the tensioning force of the embroidery rope, or release the protective spring 235 to move to the initial position when the embroidery rope is loosened, thereby appropriately tightening the embroidery rope, so as to further ensure that the embroidery rope is in an appropriately tensioned state.

[0045] In addition, in this embodiment, a guide rope ring 8 and a guide rope wheel 9 are provided on the two shorter vertical plates 12, and a plurality of guide rope rings 8 and a guide rope wheel 9 are provided on an extended vertical plate 12; the guide rope ring 8 and the guide rope wheel 9 are both used to guide the embroidery rope to extend from the thread feeding assembly 23 to the tensioning assembly 24.

[0046] Anything not mentioned above is applicable to the prior art.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A three-color rope embroidery device, characterized in that: The invention comprises a mounting base (1) and three groups of cord embroidery components mounted on the mounting base (1); each group of cord embroidery components comprises a looping head (21), a driving mechanism (22), and a thread feeding component (23); the driving mechanism (22) is used to drive the looping head (21) to rotate so as to cooperate with the needle bar to realize a looping and rope swinging action; the thread feeding component (23) is arranged above the looping head (21) and is used to feed thread to the looping head (21); the driving mechanism (22) comprises a driving motor (221 ) and a conveyor belt assembly (222), the looping head (21) and the driven pulley of the conveyor belt assembly (222) are coaxially arranged, the driving pulley of the conveyor belt assembly (222) is arranged on the output shaft of the driving motor (221), and the driving mechanism (22) drives the looping head (21) to rotate through the conveyor belt assembly (222); the bottom of the installation base (1) is also provided with an installation accommodating cavity, and the three groups of conveyor belt assemblies (222) are all arranged in the installation accommodating cavity (3).

2. The three-color cord embroidery device according to claim 1, characterized in that: It also includes a tensioning assembly (24) for tensioning the embroidery rope sent to the looping head (21) and arranged directly below the corresponding thread feeding assembly (23).

3. The three-color cord embroidery device according to claim 1, characterized in that: The wire feeding assembly (23) comprises a wire box (231) and a wire feeding wheel (232). The wire box (231) has openings upward and downward. A mounting hole (233) is provided on a set of opposite side walls of the wire box (231). A latch (234) is radially provided in the mounting hole (233). Pin holes are provided at both ends of the wheel shaft of the wire feeding wheel (232). The wire feeding wheel (232) is mounted in the wire box (231) by having both ends of the wheel shaft extend into a mounting hole (233) and respectively engage with the corresponding latch (234).

4. The three-color cord embroidery device according to claim 3, characterized in that: It also includes at least one protection spring (235) sleeved on the latch (234), one end of the protection spring (235) being pressed against the side wall of the mounting hole (233) and the other end being pressed against the axle of the wire feeding wheel (232).

5. The three-color cord embroidery device according to claim 1, characterized in that: The installation base (1) comprises a horizontal bottom plate (11) and at least one vertical plate body (12); the vertical plate body (12) and the horizontal bottom plate (11) are fixedly connected; and the installation accommodating cavity (3) is provided on the horizontal bottom plate (11).

6. The three-color cord embroidery device according to claim 5, characterized in that: It also comprises at least one lifting cylinder (4), and at least one vertical plate (12) is fixedly mounted with at least one lifting cylinder (4), and the output telescopic shaft end of at least one lifting cylinder (4) is fixed on the frame of the embroidery machine, and the rope embroidery component is lifted and moved as a whole by the at least one lifting cylinder (4).

7. The three-color cord embroidery device according to claim 5 or 6, characterized in that: A protective limiting member (5) for locking the height position of the cord embroidery assembly is provided on the side wall of at least one of the vertical plates (12).

8. The three-color cord embroidery device according to claim 6, characterized in that: A lifting slide (13) is also provided on the vertical plate body (12) having the lifting cylinder (4), and a lifting guide rail (14) is correspondingly provided on the frame of the embroidery machine, and the lifting slide (13) is correspondingly movably arranged on the lifting guide rail (14).

9. The three-color cord embroidery device according to claim 2, characterized in that: The tensioning assembly (24) comprises a tensioning swing rod (241), a torsion spring (242), and a swing shaft (243). The swing shaft (243) is rotatably plugged and arranged on the mounting base (1). The tensioning swing rod (241) is also provided with a wire hole for the embroidery rope to pass through. The tensioning swing rod (241) is fixedly connected to one end of the swing shaft (243). The torsion spring (242) is arranged on the swing shaft (243) to control the tensioning swing rod (241) to swing around the swing shaft (243) and away from the looping head (21).

10. The three-color cord embroidery device according to claim 9, characterized in that: It also includes a Hall sensor element (6) and a positioning pendulum (7). The positioning pendulum (7) is fixedly connected to the other end of the swing shaft (243) to swing synchronously with the tensioning pendulum (241). The Hall sensor element (6) is used to identify the swing position of the positioning pendulum (7).

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