Oscillating bar structure applied to multi-color disc belt color changing mechanism of embroidery machine

Abstract

The oscillating bar structure applied to the multi-color taping color changing mechanism of the embroidery machine is installed on one side of an opening of a taping rope wheel assembly and comprises a fixing base fixed to the taping rope wheel assembly, a sliding assembly installed on the fixing base and an oscillating bar assembly with one end rotationally installed on the fixing base. The sliding assembly comprises a sliding base installed on the fixed base, a sliding block arranged on the sliding base in a sliding fit mode and a clamping block connected to the sliding block and sliding along with the sliding block, and a bayonet is formed in the front side of the clamping block so that the connecting block can be clamped into the buckle in the radial direction of the clamping block. When the coiling rope wheel assembly is transversely installed on the needle rod mechanism, matching of the connecting block and the buckle is simpler and more convenient, the guiding slant direction is arranged at the opening of the buckle so that the connecting block can smoothly slide into the buckle, the situation that matching cannot be completed due to inaccurate alignment is avoided, the error-tolerant rate of equipment is increased, and the working efficiency of the equipment is improved. And the precision requirement of parts is not too high, so that the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of embroidery machine equipment, specifically relating to a swing arm structure applied to the color-changing mechanism of a multi-color disc belt in an embroidery machine. Background Technology

[0002] The applicant previously disclosed an automatic multi-color ribbon changing embroidery machine, Chinese patent application number CN202310080272.6, which specifically includes a machine box beam, a needle bar mechanism for driving the output of sewing thread, a sewing platform for placing fabric for embroidery sewing, several color-changing heads loaded with different colored ribbons, a sewing station for the color-changing heads to enter and install for embroidery sewing, a changing mechanism connected to the needle bar mechanism for changing the corresponding color-changing head into the sewing station, a left-right moving mechanism for moving the color-changing head to a position directly opposite the sewing station, and a cutting mechanism for cutting the ribbon after the embroidery sewing is completed. The changing mechanism uses a gripper to disengage the clamp on the color-changing head from the clamp seat, and then uses a front-back moving mechanism to move the color-changing head back and forth between the needle bar mechanism and the left-right moving mechanism, achieving fast and accurate changing and improving the efficiency of sewing work.

[0003] In the above structure, the color-changing machine head is equipped with a ribbon swing arm for unwinding the rolled ribbon and pulling it to the sewing platform for sewing. The ribbon swing arm needs to be engaged with the drive mechanism to drive the swing. During the change of clothes, the drive mechanism is disengaged from the ribbon swing arm, and then the drive mechanism engages with the ribbon swing arm on the spare color-changing machine head through the rotor.

[0004] During the assembly process, the rotor needs to be horizontally embedded into the slot on the ribbon swing arm. Since it is necessary to ensure that the drive mechanism does not vibrate when driving the swing arm, there cannot be too much gap between the rotor and the slot. Therefore, the rotor needs to be accurately aligned before the engagement can be completed. This requires that the fit of each component be very precise and without too much error. This will increase the precision requirements for the parts processing, increase the processing cost, and make the installation more difficult.

[0005] Furthermore, the drive mechanism uses a U-shaped rod that bypasses the clamp and connects to the ribbon swing arm for drive. This connection method, which places the U-shaped rod on the outside, makes the U-shaped rod susceptible to external interference and deformation, which in turn causes the rotor to shift and affects the fit between the rotor and the slot. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a swing arm structure for use in the color-changing mechanism of a multi-color disc belt in an embroidery machine.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A swing arm structure is applied to the color-changing mechanism of a multi-color tape reel in an embroidery machine. The swing arm structure is installed on one side of the opening of the tape reel assembly. The swing arm structure includes a fixed seat fixed to the tape reel assembly, a sliding component installed on the fixed seat, and a swing arm assembly rotatably installed on the fixed seat at one end. The other end of the swing arm assembly is connected to the sliding component. The swing arm structure also includes a drive component disposed on the needle bar mechanism for driving the sliding component to slide up and down.

[0009] The sliding assembly includes a slide mounted on a fixed base, a slider slidably engaged on the slide, and a snap-fit ​​block connected to the slider and sliding with the slider. The snap-fit ​​block has a slot on its front side, and the driving assembly has a connecting block for engaging in the slot. The connecting block is radially snapped into the slot.

[0010] Furthermore, the opening on the side of the bayonet facing the connecting block is provided with a guide slope.

[0011] In this invention, the top of the pulley assembly is provided with a clamp, and the bottom of the needle bar mechanism is provided with a clamping seat for clamping with the clamp. The clamp on the pulley assembly is clamped on the clamping seat to complete the installation.

[0012] Furthermore, the rocker arm assembly includes a right-angled member hinged at the right-angle end to a fixed base and a traction rod fixedly installed at the bottom of the right-angled member. The top of the right-angled member is provided with a sliding cavity for cooperating with the slider to slide up and down. The slider is provided with a sliding part that slides into the sliding cavity. The slider converts the vertical up and down movement of the slider into the rotation of the right-angled member around its hinge point through the cooperation of the sliding part and the sliding cavity.

[0013] Furthermore, the traction rod is telescopically oriented, and the bottom of the traction rod is provided with an adjustable traction head and a mounting cavity for mounting the traction head. The traction head is fixed by fasteners passing through the mounting cavity.

[0014] In this invention, the drive assembly includes a transmission rod for power transmission and a mounting block for embedding the transmission rod in a clamp. The top of the transmission rod is connected to a needle bar mechanism, and the bottom of the transmission rod extends downward to the position of the corresponding snap-fit ​​block. The connecting block is rotatably mounted at the position of the corresponding snap-fit ​​at the bottom of the transmission rod.

[0015] Furthermore, the front end of the clamp is provided with a sliding groove, and the transmission rod is slidably engaged in the sliding groove.

[0016] This utility model has the following advantages and beneficial effects:

[0017] By providing a locking slot on the front side of the locking block, the connecting block can be radially engaged into the buckle. When the pulley assembly is horizontally mounted on the needle bar mechanism, the engagement between the connecting block and the buckle is simpler and more convenient. Furthermore, the buckle opening is provided with a guide angle, allowing the connecting block to slide smoothly into the buckle, avoiding situations where the engagement cannot be completed due to misalignment. This increases the fault tolerance of the equipment, and the precision requirements of the parts are not too high, thereby reducing production costs.

[0018] By mounting the transmission rod on the clamp of the needle bar mechanism, the transmission rod no longer needs to be designed as a U-shaped structure to bypass the clamp, thereby reducing processing costs. At the same time, the transmission rod is installed in the groove of the clamp through the mounting block, which allows it to have a stable sliding stroke and avoids the situation where the transmission rod is deformed due to external forces, making it difficult for the connecting block to fit in the bayonet, thus improving the stability of the transmission component. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the color-changing mechanism in this embodiment;

[0021] Figure 2 This is a side view of the color-changing mechanism in this embodiment;

[0022] Figure 3 for Figure 1 Enlarged view of region A in the middle;

[0023] Figure 4 This is one perspective view of the rocker arm mechanism in this embodiment;

[0024] Figure 5 for Figure 4 Enlarged view of region B in the middle;

[0025] Figure 6 This is another perspective view of the lever mechanism in this embodiment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. However, this utility model is not limited to the following embodiments.

[0027] like Figures 1 to 6As shown, this embodiment discloses a swing arm structure applied to a multi-color tape changing mechanism of an embroidery machine. The changing mechanism includes a machine housing beam 1, a needle bar mechanism 2 installed in front of the machine housing beam 1 for driving the sewing thread output, a tape reel assembly 3 installed at the bottom of the needle bar mechanism 2 for sewing, a changing mechanism 4 installed behind the needle bar mechanism 2 for replacing the tape reel assembly 3, and a tape cutting mechanism 5 installed at the bottom of the machine housing beam 1 for cutting the tape before changing the color. The changing mechanism also includes a left-right moving mechanism 7 located between the needle bar mechanism 2 and the changing mechanism 4. The left-right moving mechanism 7 is equipped with multiple spare tape reel assemblies 3 loaded with different color tapes. The changing mechanism 4 moves the tape reel on the needle bar mechanism 2... Component 3 is disassembled and sent to the left and right moving mechanism 7 for hanging. Then, the left and right moving mechanism 7 moves the required spare coiled rope wheel assembly 3 between the changing mechanism 4 and the needle bar mechanism 2. Then, the changing mechanism 4 sends the spare coiled rope wheel assembly 3 to the needle bar mechanism 2. Specifically, one side of the coiled rope wheel assembly 3 is provided with an opening for fitting onto the needle bar mechanism 2. The needle bar mechanism 2 enters the interior of the coiled rope wheel assembly 3 through the opening to complete the engagement. The top of the coiled rope wheel assembly 3 is provided with a clamp 31. The bottom of the left and right moving mechanism 7 and the needle bar mechanism 2 are provided with a clamping seat 21 for clamping and installation with the clamp 31. The clamp 31 on the coiled rope wheel assembly 3 is clamped onto the clamping seat 21 to complete the installation.

[0028] In this embodiment, the swing arm structure 6 is installed on one side of the reel assembly 3. The swing arm structure 6 includes a fixed base 61 fixed to the bottom of the reel assembly 3, a sliding component 62 slidably installed on the fixed base 61, and a swing arm component 63 rotatably installed on the fixed base 61 at one end. The other end of the swing arm component 63 is connected to the sliding component 62. The swing arm structure 6 also includes a driving component 64 disposed on the needle bar mechanism 2 for driving the sliding component 62 to slide. The sliding component 62 includes a slide block 621 installed on the fixed base 61, a slider 622 slidably engaged on the slide block 621, and a locking block 623 connected to the slider 622 and sliding up and down with the slider 622. The front side of the locking block 623 A bayonet 624 is provided, and the drive assembly 64 is provided with a connecting block 643 for engaging within the bayonet 624. When the pulley assembly 3 is horizontally mounted on the needle bar mechanism 2, the connecting block 643 is radially engaged into the bayonet 624. Preferably, to facilitate the radial engagement of the connecting block 643 into the bayonet 624, the opening of the bayonet 624 facing the connecting block 643 is provided with a guide slope 625. The drive assembly 64 drives the engaging block 623 to move up and down through the connecting block 643, and the engaging block 623 in turn drives the swing arm assembly 63 to swing through the slider 622. In this embodiment, to make the engagement between the connecting block 643 and the buckle 624 smoother, the connecting block 643 uses a rotary bearing as a connecting component.

[0029] By providing a slot 624 on the front side of the locking block 623, the connecting block 643 can be radially inserted into the slot 624. When the pulley assembly 3 is horizontally mounted on the needle bar mechanism 2, the engagement between the connecting block 643 and the slot 624 is simpler and more convenient. Furthermore, a guide angle is provided at the opening of the slot 624, allowing the connecting block 643 to slide smoothly into the slot 624. This avoids situations where the engagement cannot be completed due to misalignment, increases the fault tolerance of the equipment, and reduces the precision requirements of the parts, thereby lowering production costs.

[0030] Furthermore, the swing arm assembly 63 includes a right-angle member 631 hinged at its right angle to the fixed base 61 and a traction rod 632 fixedly installed at the bottom of the right-angle member 631. The top of the right-angle member 631 is provided with a sliding cavity 633 for cooperating with the slider 622 to slide up and down. The slider 622 is provided with a sliding part 626 that slides into the sliding cavity 633. The vertical up and down movement of the slider 622 is converted into the rotation of the right-angle member 631 around its hinge point through the cooperation of the sliding part 626 and the sliding cavity 633, thereby realizing the swing of the traction rod 632.

[0031] Furthermore, the traction rod 632 is telescopically oriented, and the bottom of the traction rod 632 is provided with an adjustable traction head 634 and a mounting cavity 635 for mounting the traction head 634. The traction head 634 is bolted through the mounting cavity 635 and screwed into place at the required position in the mounting cavity 635. By telescopically oriented the traction rod 632, the pulley assembly 3 can adjust different traction lengths according to the sewing speed.

[0032] In this embodiment, the driving assembly 64 includes a transmission rod 641 for transmitting power from the needle bar mechanism 2 to the rocker arm structure 6. The transmission rod 641 is mounted on the clamp 21 of the needle bar mechanism 2 via a mounting block 642. Preferably, the front end of the clamp 21 is provided with a sliding groove 211. The transmission rod 641 is slidably fitted in the sliding groove 211 and is limited in position by the mounting block 642. The top of the transmission rod 641 is connected to the needle bar mechanism 2 and is driven by the needle bar mechanism 2 to slide up and down along the sliding groove 211. The bottom of the transmission rod 641 extends downward to the position of the corresponding locking block 623. The connecting block 643 is rotatably mounted at the bottom of the transmission rod 641 at the position corresponding to the bayonet 624. By mounting the transmission rod 641 on the clamp 21 of the needle bar mechanism 2, the transmission rod 641 no longer needs to be designed as a U-shaped structure to pass over the clamp 31, thereby reducing the processing cost. At the same time, the transmission rod 641 is mounted in the sliding groove 211 of the clamp 21 through the mounting block 642, so that it has a stable sliding stroke. This avoids the situation where the transmission rod 641 is deformed due to external force factors, which would make it difficult for the connecting block 643 to fit in the bayonet 624, thus improving the stability of the transmission component.

[0033] The above description in this specification is merely an illustrative example of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the specific embodiments described or adopt similar methods to replace them, as long as they do not deviate from the content of this specification or exceed the scope defined in the claims, they shall all fall within the protection scope of this invention.

Claims

1. A swing arm structure applied to the color-changing mechanism of a multi-color disc conveyor in an embroidery machine, characterized in that: The swing arm structure (6) is installed on one side of the opening of the reel assembly (3). The swing arm structure (6) includes a fixed seat (61) fixed on the reel assembly (3), a sliding component (62) installed on the fixed seat (61), and a swing arm component (63) rotatably installed on the fixed seat (61) at one end. The other end of the swing arm component (63) is connected to the sliding component (62). The swing arm structure (6) also includes a drive component (64) provided on the needle bar mechanism (2) for driving the sliding component (62) to slide up and down. The sliding assembly (62) includes a slide (621) mounted on a fixed base (61), a slider (622) slidably engaged on the slide (621), and a snap-fit ​​block (623) connected to the slider (622) and sliding with the slider (622). The snap-fit ​​block (623) has a snap-fit ​​opening (624) on its front side. The drive assembly (64) has a connecting block (643) for engaging in the snap-fit ​​opening (624). The connecting block (643) is radially snapped into the snap-fit ​​opening (624).

2. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 1, characterized in that: The bayonet (624) has a guide slope (625) at the opening facing the connecting block (643).

3. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 1, characterized in that: The top of the pulley assembly (3) is provided with a clamp (31), and the bottom of the needle bar mechanism (2) is provided with a clamp seat (21) for clamping with the clamp (31). The clamp (31) on the pulley assembly (3) is clamped on the clamp seat (21) to complete the installation.

4. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 1, characterized in that: The swing arm assembly (63) includes a right-angle piece (631) hinged at the right angle end to a fixed base (61) and a traction rod (632) fixedly installed at the bottom of the right-angle piece (631). The top of the right-angle piece (631) is provided with a sliding cavity (633) for cooperating with the slider (622) to slide up and down. The slider (622) is provided with a sliding part (626) that slides into the sliding cavity (633). The slider (622) transforms the vertical up and down movement of the slider (622) into the rotation of the right-angle piece (631) around its hinge point through the cooperation of the sliding part (626) and the sliding cavity (633).

5. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 4, characterized in that: The traction rod (632) is telescopically oriented, and the bottom of the traction rod (632) is provided with an adjustable traction head (634) and a mounting cavity (635) for mounting the traction head (634). The traction head (634) is fixed by fasteners passing through the mounting cavity (635).

6. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 3, characterized in that: The drive assembly (64) includes a drive rod (641) for power transmission and a mounting block (642) for mounting the drive rod (641) on a clamp (21). The top of the drive rod (641) is connected to the needle bar mechanism (2), and the bottom of the drive rod (641) extends downward to the position of the corresponding snap block (623). The connecting block (643) is rotatably mounted at the position of the corresponding snap (624) at the bottom of the drive rod (641).

7. The swing arm structure applied to the color-changing mechanism of a multi-color tape in an embroidery machine according to claim 6, characterized in that: The front end of the clamp (21) is provided with a sliding groove (211), and the transmission rod (641) slides within the sliding groove (211).

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