High-speed quilting machine single needle bar linear motion guide mechanism
Patent Information
- Application Number
- CN202522142692.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0004]本实用新型要解决的技术问题是：现有技术中存在易因杂物堆积导致运动卡顿，刚性接触磨损引发精度下降，进而影响刺绣质量与设备寿命的缺点，为此我们提出一种高速绗绣机单针杆直线运动导向机构
本实用新型中，通过设置T型导轨与倒U型滑槽的配合结构，实现了提升导向稳定性与自清洁的效果。T型导轨中部凸出、两侧凹陷的设计，与倒U型滑槽形成互补配合，增大了接触导向面积，限制了位移架在运动过程中的横向晃动，显著提升了整体结构的导向精度。同时，导轨凸出部分外侧包裹的橡胶套，在滑槽滑动时能与滑槽底部凹处紧密贴合，利用橡胶的弹性刮除凹处积存的细小杂物，减少了因杂物堆积导致的运动阻力，保持了滑动面的清洁，延长了导向机构的维护周期。
Smart Images
Figure CN224799137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quilting and embroidery machine technology, and in particular to a single-needle rod linear motion guide mechanism for a high-speed quilting and embroidery machine. Background Technology
[0002] High-speed quilting and embroidery machines are industrial devices that integrate quilting and embroidery functions. Employing a single-needle design, they prioritize high-speed operation. Their core components include a machine head, feeding mechanism, and control system. A single embroidery thread rapidly pierces the fabric, creating continuous stitches. This allows for quilting reinforcement or decorative embroidery. The machine relies on precision transmission components for high-speed operation, and a stepper motor controls the stitch length and fabric feed accuracy, ensuring even and neat stitches. Suitable for small to medium batch production in home textiles and apparel, these machines are easy to operate and require minimal space, balancing efficiency and flexibility to meet the processing needs of intricate quilting and embroidery patterns.
[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: When the quilting machine is working, the linear movement of the quilting machine along the guide rail often suffers from motion jamming and precision reduction. On the one hand, thread ends and other debris easily accumulate between the guide rail and the slider, which enters the mating gap as the equipment moves, leading to increased sliding resistance, motion jamming, and reduced embroidery efficiency. On the other hand, the rigid contact between the guide rail and the slider is prone to wear and tear, resulting in mating gaps. Coupled with the lack of an effective cleaning structure, debris continuously wears down the contact surface, exacerbating the decline in guiding precision and even causing track blockage and malfunctions. This causes the needle bar's movement trajectory to deviate, resulting in embroidery pattern deformation, uneven stitches, and even thread breakage and skipped stitches, seriously affecting product quality and equipment lifespan. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the movement is easily jammed due to the accumulation of debris, and the rigid contact wear causes a decrease in accuracy, which in turn affects the embroidery quality and the life of the equipment. To this end, we propose a single needle bar linear motion guide mechanism for high-speed quilting and embroidery machines.
[0005] To achieve the above objectives, this application adopts the following technical solution: a single needle bar linear motion guide mechanism for a high-speed quilting and embroidery machine, comprising: an operating table, guide rails are provided on the ground on both sides of the operating table, the guide rails are arranged along the length of the operating table, displacement frames are installed on both sides of the guide rails, a linear slide rail is installed between the two displacement frames, a drive slider is installed on the linear slide rail, a needle bar is installed on the drive slider, the displacement frame includes a support frame, the support frame is arranged on both sides of the operating table, and the top of the support frame is higher than the surface of the operating table, a sliding groove is installed at the bottom of the support frame, a groove is opened in the center of the bottom of the sliding groove, and rollers are installed on both sides of the bottom of the sliding groove.
[0006] Preferably, the outer side of the convex rail is wrapped with a rubber sleeve.
[0007] Preferably, the guide rail includes a base, which is installed on the ground on both sides of the operating table. A rail is installed on the top of the base, a convex rail is installed in the middle of the rail, and concave rails are provided on both sides of the top of the rail. A roller groove is opened at the center of the bottom of each concave rail.
[0008] Preferably, blades are installed at both ends of the groove.
[0009] Preferably, the blade is fan-shaped away from the fixed end.
[0010] Preferably, the bottommost point of the blade is at the same horizontal plane as the top of the groove.
[0011] The technical effects and advantages of this utility model are as follows: In this invention, the combination of a T-shaped guide rail and an inverted U-shaped groove enhances guiding stability and self-cleaning properties. The T-shaped guide rail, with its protruding center and recessed sides, complements the inverted U-shaped groove, increasing the contact area and limiting lateral swaying of the displacement frame during movement, significantly improving the overall guiding accuracy. Simultaneously, the rubber sleeve covering the protruding portion of the guide rail fits tightly against the recessed area at the bottom of the groove during sliding, using the rubber's elasticity to scrape away accumulated debris, reducing resistance caused by debris buildup, keeping the sliding surface clean, and extending the maintenance cycle of the guiding mechanism.
[0012] In this invention, by setting a matching structure between the rollers and the grooves, the effects of reducing motion friction and improving sliding smoothness are achieved. The grooves at the center of the recesses on both sides of the guide rail and the rollers rotatably mounted at the bottom of the grooves form a rolling fit, transforming traditional sliding friction into rolling friction, which significantly reduces friction during movement. This design not only reduces energy loss, allowing the displacement frame to move more flexibly along the guide rail under the action of the drive equipment, but also reduces the wear rate of the contact surfaces, reducing accuracy errors caused by long-term friction. The precise matching of the rollers and the grooves further restricts the movement direction of the displacement frame, avoiding deviation or jamming, and ensuring the stability of the displacement frame during high-speed movement. Attached Figure Description
[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ; Figure 3This is a three-dimensional structural diagram of the guide rail of this utility model; Figure 4 This is a three-dimensional structural diagram of the displacement frame of this utility model.
[0014] Legend: 1. Operating table; 2. Guide rail; 21. Base; 22. Track; 23. Convex rail; 24. Concave rail; 25. Groove; 3. Displacement frame; 31. Support frame; 32. Slide groove; 33. Groove; 34. Roller; 35. Blade; 4. Linear slide rail; 5. Drive slider; 6. Needle bar. Detailed Implementation
[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0016] Reference Figures 1-2 As shown, this utility model provides a technical solution: a single needle bar linear motion guide mechanism for a high-speed quilting and embroidery machine, comprising: an operating table 1, guide rails 2 are provided on the ground on both sides of the operating table 1, the guide rails 2 are arranged along the length direction of the operating table 1, displacement frames 3 are slidably installed on both sides of the guide rails 2, the displacement frames 3 move along the length direction of the operating table 1 through the guide rails 2, a linear slide rail 4 is installed between the two sides of the displacement frames 3 by screws, the linear slide rail 4 is higher than the operating table 1, a drive slider 5 is slidably installed on the linear slide rail 4, a needle bar 6 is fixedly installed on the drive slider 5, the needle bar 6 is driven by a drive device to quickly puncture the fabric surface on the operating table 1 to form continuous stitches, completing quilting reinforcement and decorative embroidery.
[0017] Reference Figure 3 As shown in this embodiment: the guide rail 2 includes a base 21, which is installed on the ground on both sides of the operating table 1. A rail 22 is installed on the top of the base 21 by screws. The rail 22 is T-shaped. A convex rail 23 is fixedly installed in the middle of the rail 22. A rubber sleeve is wrapped around the outside of the convex rail 23 so that the bottom of the displacement frame 3 can be scraped and cleaned when the guide rail 2 is in contact with the displacement frame 3. The top two sides of the rail 22 are set as concave rails 24, and a roller groove 25 is opened at the center of the bottom of the concave rails 24 on both sides.
[0018] Reference Figure 4As shown in this embodiment: the displacement frame 3 includes a support frame 31, which is disposed on both sides of the operating table 1, with the top of the support frame 31 higher than the surface of the operating table 1. A slide groove 32 is fixedly installed at the bottom of the support frame 31. The slide groove 32 is inverted U-shaped, and a groove 33 is formed at the center of the bottom of the slide groove 32. The groove 33 corresponds to the convex rail 23. Rollers 34 are rotatably installed on both sides of the bottom of the slide groove 32, and the rollers 34 correspond to the rolling groove 25. When the displacement frame 3 slides on the guide rail 2, the top of the convex rail 23 fits against the bottom of the groove 33, and the rollers 34 roll in the rolling groove 25, reducing the motion friction during sliding and improving the smoothness of sliding. Blades are fixedly installed at both ends of the slide groove 32. The blade 35 is fan-shaped away from the fixed end. The fan-shaped design of the blade 35 expands the cleaning range and ensures that the debris wrapped around the guide rail 2 in the lateral width and edge curvature can be effectively removed during the movement of the displacement frame 3. This maintains the normal operation of the guiding mechanism and avoids sudden changes in resistance caused by debris jamming. The bottom of the blade 35 and the top of the groove 33 are on the same horizontal plane. When the displacement frame 3 slides, the blade 35 can actively cut and remove long strips of debris such as thread ends wrapped around the guide rail 2. If these debris such as thread ends are not removed in time, they are easy to get tangled in the mating part of the guide rail 2 and the slide 32, hindering the relative movement of the two, and may even cause the equipment to stop due to excessive tangling.
[0019] Working principle: During use, the operator places the fabric to be processed on the operating table 1, turns on the various drive devices, and the guide rails 2 on both sides of the ground provide a path for the displacement frame 3 to move along the length of the operating table 1. The drive device drives the displacement frame 3 to slide through the inverted U-shaped groove 32 at the bottom, which cooperates with the T-shaped track 22 of the guide rail 2. The rollers 34 on both sides of the bottom of the groove 32 roll in the rolling groove 25 of the concave part of the track 22, converting sliding friction into rolling friction, greatly reducing motion resistance and improving the smoothness of the movement of the displacement frame 3. At the same time, the convex rail 23 in the middle of the track 22 fits into the groove 33 at the bottom of the groove 32, and the rubber sleeve on the outside of the convex rail 23 abuts against the groove 33 when the displacement frame 3 slides. 3. The bottom is scraped and cleaned, while the fan-shaped blades 35 at both ends of the slide 32 actively cut and remove the thread ends and other debris wrapped around the guide rail 2 as the displacement frame 3 moves, so as to avoid the debris from hindering the movement or causing the equipment to stop, and to ensure the continuous and stable operation of the guiding mechanism. The drive slider 5 on the linear slide rail 4 between the two displacement frames 3 drives the needle bar 6 to slide along the linear slide rail 4 under the action of the drive equipment. Combined with the movement of the displacement frame 3 along the guide rail 2, the needle bar 6 makes precise and fast piercing on the fabric surface to form continuous stitches, and finally completes the quilting reinforcement and decorative embroidery operation. The whole process realizes the high-precision linear movement of the needle bar 6 and the efficient and stable embroidery operation through the coordinated cooperation of the mechanical structure.
[0020] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A linear motion guide mechanism for a single needle bar of a high-speed quilting and embroidery machine, characterized in that, The device includes an operating table, on both sides of which guide rails are installed on the ground. The guide rails are arranged along the length of the operating table, and displacement frames are installed on both sides of the guide rails. A linear slide rail is installed between the two displacement frames, and a drive slider is installed on the linear slide rail. A needle rod is installed on the drive slider. The displacement frame includes a support frame, which is located on both sides of the operating table. The top of the support frame is higher than the surface of the operating table. A sliding groove is installed at the bottom of the support frame, and a groove is formed in the center of the bottom of the sliding groove. Rollers are installed on both sides of the bottom of the sliding groove.
2. The single-needle bar linear motion guide mechanism for a high-speed quilting and embroidery machine according to claim 1, characterized in that: The guide rail includes a base, which is installed on the ground on both sides of the operating table. A track is installed on the top of the base, a convex rail is installed in the middle of the track, and concave rails are provided on both sides of the top of the track. A rolling groove is opened at the center of the bottom of each concave rail.
3. The single-needle bar linear motion guide mechanism for a high-speed quilting and embroidery machine according to claim 2, characterized in that: Blades are installed at both ends of the groove.
4. The single-needle bar linear motion guide mechanism for a high-speed quilting machine according to claim 3, characterized in that: The blade is fan-shaped away from the fixed end.
5. The single-needle bar linear motion guide mechanism for a high-speed quilting and embroidery machine according to claim 4, characterized in that: The bottom edge of the blade is at the same level as the top of the groove.