A type of rotating spindle structure with elastic limiting
By introducing an elastic limiting system into the spinning bobbin structure and combining it with a planar thrust bearing, the problem of yarn breakage caused by vibration of the bobbin was solved, and a stable yarn supply and efficient operation of the braiding machine were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN WANLI SHENG ROPE CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-04
AI Technical Summary
In existing high-speed tumbling knitting machines, the bobbins move up and down due to vibration during use, causing the yarn to break and affecting the efficiency and quality of the knitting operation.
The structure employs a flexible limiting spindle design, utilizing a combination of elastic abutment components and planar thrust bearings to provide continuous axial elastic pressure, suppressing the up-and-down movement of the yarn bobbin during high-speed operation, ensuring smooth rotation of the yarn bobbin, and reducing the instantaneous tension peak of the yarn.
It effectively prevents yarn breakage caused by vibration, ensures a stable supply of yarn, and improves the working efficiency and production quality of the braiding machine.
Smart Images
Figure CN224591149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weaving machine technology, specifically to a spinning top structure with elastic limiting. Background Technology
[0002] As described in the published patent CN209081098U, "A High-Speed Running Knitting Machine," the high-speed running knitting machine features a complete N-color automatic switching device, and a computer-controlled motor drives the automatic switching between various yarn feeders, making multi-color pattern knitting simple and easy. Its high-performance knitting action easily completes high-quality pattern knitting that can only be achieved on large computerized knitting machines, representing a miniaturization of high-end computerized knitting. However, existing high-speed running knitting machines still have some shortcomings. During high-speed operation, the bobbins on the running spindles can be affected by vibration and move up and down, potentially causing yarn breakage and preventing normal knitting. This reduces the efficiency of the knitting operation and the quality of the produced workpieces, causing inconvenience to users.
[0003] The applicant discovered through research that the up-and-down movement of the spool causes the thread to be subjected to excessive instantaneous force during the unloading process, resulting in thread breakage.
[0004] In summary, in the operation-related technology of spinning bobbins, there is a problem that the bobbin moves up and down due to vibration, which leads to the breakage of the yarn and affects the weaving operation. Utility Model Content
[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems by providing a flexible limiting rotating spindle structure.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A spinning top structure with elastic limiting includes a spinning top body and a yarn bobbin mounted on the spinning top body, wherein the spinning top body includes a base. The base is provided with a yarn tube shaft for fitting a yarn tube component. A first planar thrust bearing is fitted to the lower end of the yarn tube shaft. A yarn tube seat is fitted on the first planar thrust bearing. The yarn tube seat and the yarn tube component are mutually limited and fixedly matched. A second planar thrust bearing is installed at the upper end of the yarn tube component. A guide post extends upward from the base and is fixed thereon. A spindle is sleeved on the guide post. A first threaded mounting hole is opened at the top of the guide post. An adjusting bolt is screwed into the first threaded mounting hole. The adjusting bolt is used to axially limit the spindle on the guide post. The upper end of the yarn bobbin shaft is fitted with an elastic abutment component, the upper end of the spindle is fixed with a head cover, the upper end of the elastic abutment component is elastically abutted with the head cover, and the lower end of the elastic abutment component is elastically abutted with the second planar thrust bearing.
[0007] As a further embodiment of this utility model: a vertical second threaded mounting hole is provided on the head cover, an abutment sleeve is screwed into the second threaded mounting hole, an abutment hole is provided on the lower end face of the abutment sleeve, and the upper end of the elastic abutment component is inserted into the abutment hole and abuts against the inner bottom surface of the abutment hole.
[0008] As a further embodiment of this utility model: the upper end of the abutting sleeve is provided with a screw joint.
[0009] As a further embodiment of this utility model: the elastic abutment assembly includes an abutment seat and an abutment head sleeved on the upper end of the yarn bobbin shaft, a spring is fixedly connected between the abutment seat and the abutment head, and an insertion hole is opened on the lower end face of the abutment head, and the upper end of the yarn bobbin shaft extends into the insertion hole for insertion and engagement. The abutment seat abuts against the second planar thrust bearing installed on the upper end of the yarn tube.
[0010] As a further embodiment of this utility model: the inner bottom surface of the abutting hole is provided with a first inclined abutting surface, and the upper end of the abutting head is provided with a second inclined abutting surface that abuts and cooperates with the first inclined abutting surface.
[0011] As a further embodiment of this utility model: a positioning hole is provided at the lower end of the yarn tube component, and a positioning post that is inserted into and cooperates with the positioning hole is fixed on the upper end surface of the yarn tube seat.
[0012] As a further embodiment of this utility model: the base is provided with an auxiliary guide rod, an auxiliary spring is sleeved on the auxiliary guide rod, an auxiliary mounting hole is opened at the lower end of the ingot, and the auxiliary spring extends into the auxiliary mounting hole and abuts against the inner bottom surface of the auxiliary mounting hole.
[0013] As a further embodiment of this utility model: a first bearing mounting hole is provided at the lower end of the yarn tube seat, and the first planar thrust bearing is installed in the first bearing mounting hole.
[0014] As a further embodiment of this utility model: a second bearing mounting hole is provided at the upper end of the yarn bobbin, and the second planar thrust bearing is installed in the second bearing mounting hole.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By utilizing the continuous axial elastic pressure provided by the elastic abutment component and the low-friction rotation characteristics of the planar thrust bearing, the up-and-down movement of the yarn bobbin caused by vibration during high-speed operation is effectively suppressed, while ensuring smooth rotation of the yarn bobbin. This significantly reduces the instantaneous tension peak experienced by the yarn during the unwinding process, fundamentally avoiding yarn breakage caused by vibration. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is another three-dimensional view of the structure of this utility model; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is another exploded view of the structure of this utility model; Figure 5 This is a three-dimensional structural view of the ingot sheet in this utility model; Figure 6 This is a three-dimensional structural view of the yarn tube holder in this utility model; Figure 7 This is another three-dimensional view of the yarn tube holder in this utility model; Figure 8 This is a three-dimensional structural view of the yarn bobbin in this utility model; Figure 9 This is a cross-sectional structural diagram of the yarn bobbin in this utility model; Figure 10 yes Figure 9 A partial view at point A in the middle; Figure 11 This is a three-dimensional structural view of the abutting sleeve 115, the elastic abutting component, and the yarn bobbin shaft in this utility model; Figure 12 yes Figure 11 A cross-sectional view along the BB direction; The reference numerals and names in the figure are as follows: Spindle body - 101, yarn package - 102, base - 103, yarn package shaft - 104, first planar thrust bearing - 105, yarn package seat - 106, second planar thrust bearing - 107, guide post - 108, spindle plate - 109, first threaded mounting hole - 110, adjusting bolt - 111, elastic abutment assembly - 112, head cover - 113, second threaded mounting hole - 114, abutment sleeve - 115. Abutment hole-116, screw joint-118, abutment seat-119, abutment joint-120, spring component-121, insertion hole-122, first inclined abutment surface-124, second inclined abutment surface-125, positioning hole-126, positioning post-128, auxiliary guide rod-129, auxiliary spring-130, auxiliary mounting hole-131, first bearing mounting hole-132, second bearing mounting hole-133. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-12 A spinning wheel structure with elastic limiting includes a spinning wheel body 101 and a yarn tube 102 mounted on the spinning wheel body 101. The spinning wheel body 101 includes a base 103. The base 103 is provided with a yarn tube shaft 104 for sleeved with the yarn tube 102. The lower end of the yarn tube shaft 104 is sleeved with a first planar thrust bearing 105. The first planar thrust bearing 105 is sleeved with a yarn tube seat 106. The yarn tube seat 106 and the yarn tube 102 are mutually limited and fixedly engaged. The upper end of the yarn tube 102 is equipped with a second planar thrust bearing 107. like Figure 1 , 2 As shown in Figures 3 and 4, in the process of using the spinning wheel of this utility model, the yarn tube 102 is first installed on the yarn tube shaft 104, and the yarn tube seat 106 and the yarn tube 102 are mutually limited and fixed together, so that the yarn tube seat 106 and the yarn tube 102 rotate synchronously. Since the yarn tube seat 106 is sleeved on the first planar thrust bearing 105, the upper end of the first planar thrust bearing 105 abuts against the yarn tube seat 106, and the lower end of the first planar thrust bearing 105 abuts against the base 103, so the yarn tube seat 106 can rotate smoothly. Since the yarn tube seat 106 and the yarn tube 102 rotate synchronously, the yarn tube 102 can rotate smoothly on the yarn tube shaft 104. Then, the upper end of the yarn package 102 is limited and locked by the head cover 113, and the spindle 109 is sleeved on the guide post 108. By adjusting the bolt 111 in the first threaded mounting hole 110, the spindle 109 is axially limited on the guide post 108. By changing the depth of the adjusting bolt 111 in the first threaded mounting hole 110, the installation height of the spindle 109 on the guide post 108 can be adjusted. The head cover 113 fixedly installed on the upper end of the spindle 109 provides elastic abutment. The component 112 provides axial positioning in the vertical direction. The second planar thrust bearing 107 is axially positioned in the vertical direction by the elastic abutment component 112. Since the second planar thrust bearing 107 is installed at the upper end of the yarn package 102, the upper end of the yarn package 102 is elastically positioned by the spindle 109 and the head cover 113. At the same time, due to the presence of the first planar thrust bearing 105 and the second planar thrust bearing 107, the rotation of the yarn package 102 on the yarn package shaft 104 remains smooth. A guide post 108 extends upward and is fixed on the base 103. A spindle 109 is sleeved on the guide post 108. A vertical first threaded mounting hole 110 is opened at the top of the guide post 108. An adjusting bolt 111 is screwed into the first threaded mounting hole 110. The adjusting bolt 111 is used to axially limit the spindle 109 on the guide post 108. The upper end of the yarn bobbin 104 is fitted with an elastic abutment component 112, and the upper end of the spindle 109 is fixed with a head cover 113. The upper end of the elastic abutment component 112 is elastically abutted with the head cover 113, and the lower end of the elastic abutment component 112 is elastically abutted with the second planar thrust bearing 107. By cooperating with the first and second planar thrust bearings 107 set at the upper and lower ends and the elastic abutment component 112 on the yarn bobbin shaft 104, a high-efficiency damping and buffering system is constructed. The elastic abutment component 112 continuously applies stable axial pressure to the yarn bobbin 102, effectively suppressing the up-and-down movement of the yarn bobbin caused by vibration during high-speed operation, and significantly reducing the peak tension fluctuation during yarn unwinding, thereby fundamentally avoiding yarn breakage. At the same time, the first and second planar thrust bearings 107 ensure that the yarn bobbin can still rotate smoothly with low resistance under controlled pressure, ensuring smooth yarn supply.
[0019] In this embodiment of the utility model, the head cover 113 is provided with a vertical second threaded mounting hole 114, and an abutment sleeve 115 is screwed into the second threaded mounting hole 114. The lower end face of the abutment sleeve 115 is provided with an abutment hole 116, and the upper end of the elastic abutment component 112 is inserted into the abutment hole 116 and abuts against the inner bottom surface of the abutment hole 116. like Figure 3 and 5As shown, a height adjustment mechanism is formed by the second threaded mounting hole 114 on the head cover 113 and the abutment sleeve 115 screwed into the second threaded mounting hole 114. By rotating the abutment sleeve 115, the vertical position of the abutment sleeve 115 is changed, thereby directly adjusting the pressing degree of the abutment hole 116 at the lower end of the abutment sleeve 115 against the upper end of the elastic abutment component 112, realizing linear and stable control of the elastic abutment force. This gives the entire elastic limit system adjustability, which can optimize the elastic abutment effect according to different yarn requirements or vibration environment, enhance the adaptability of the equipment to different working conditions, and improve the reliability of vibration suppression and yarn breakage prevention.
[0020] In this embodiment of the utility model, the upper end of the abutting sleeve 115 is provided with a screw joint 118; By providing a screw joint 118 at the upper end of the abutment sleeve 115, the screw joint 118 provides a structure that facilitates manual or tool force application, and the vertical height of the abutment sleeve 115 can be directly and accurately rotated and adjusted; the ease of operation and efficiency of adjusting the preload of the elastic abutment component 112 are significantly improved, and interference or damage to surrounding parts is avoided during the adjustment process.
[0021] In this embodiment of the utility model, the elastic abutment component 112 includes an abutment seat 119 and an abutment head 120 sleeved on the upper end of the yarn bobbin shaft 104. A spring member 121 is fixedly connected between the abutment seat 119 and the abutment head 120. An insertion hole 122 is opened on the lower end face of the abutment head 120. The upper end of the yarn bobbin shaft 104 extends into the insertion hole 122 for insertion and engagement. The abutment seat 119 abuts against the second planar thrust bearing 107 installed on the upper end of the yarn tube 102; The spring 121 provides controllable elastic support between the abutment seat 119 and the abutment head 120, so that the abutment seat 119 continuously presses the second planar thrust bearing 107 to suppress the axial movement of the yarn package 102. At the same time, the insertion hole 122 at the lower end of the abutment head 120 is inserted and engaged with the upper end of the yarn package shaft 104, ensuring the precise alignment and stable operation of the elastic abutment component 112 on the yarn package shaft 104. This forms a compliant and stable axial elastic limit, effectively absorbing and buffering high-speed vibration, significantly reducing sudden changes in yarn tension, thereby preventing yarn breakage and ensuring smooth yarn supply.
[0022] In this embodiment of the present invention, the inner bottom surface of the abutting hole 116 is provided with a first inclined abutting surface 124, and the upper end of the abutting head 120 is provided with a second inclined abutting surface 125 that abuts and cooperates with the first inclined abutting surface 124. By engaging the inclined surfaces of the first inclined abutment surface 124 and the second inclined abutment surface 125, the vertical pressure of the abutment sleeve 115 is converted into axial and radial constraints on the abutment joint 120. This provides a stable elastic preload while allowing the abutment joint 120 to adaptively center and compensate for installation deviations within a certain range. This reduces jamming caused by off-center loading or eccentricity and enhances the smoothness and stability of the elastic abutment.
[0023] In this embodiment of the utility model, a positioning hole 126 is provided at the lower end of the yarn tube 102, and a positioning post 128 that is inserted into and cooperates with the positioning hole 126 is fixed on the upper end surface of the yarn tube seat 106. By inserting the positioning hole 126 at the lower end of the yarn bobbin 102 into the positioning post 128 at the upper end of the yarn bobbin seat 106, the circumferential positioning and radial constraint between the yarn bobbin 102 and the yarn bobbin seat 106 are achieved through the insertion structure. This effectively prevents the yarn bobbin 102 from rotating or radially offset relative to the yarn bobbin seat 106 when rotating at high speed. It significantly improves the concentricity and stability of the yarn bobbin 102 installation, avoids the aggravation of vibration and uneven yarn tension caused by radial runout or circumferential slippage, and further reduces the risk of yarn breakage.
[0024] In this embodiment of the utility model, the base 103 is provided with an auxiliary guide rod 129, and an auxiliary spring 130 is sleeved on the auxiliary guide rod 129. An auxiliary mounting hole 131 is opened at the lower end of the ingot 109, and the auxiliary spring 130 extends into the auxiliary mounting hole 131 and abuts against the inner bottom surface of the auxiliary mounting hole 131. By setting an auxiliary guide rod 129 and a sleeved auxiliary spring 130 on the base 103, and having the upper end of the auxiliary spring 130 extend into the auxiliary mounting hole 131 at the lower end of the spindle 109 and abut against the inner bottom surface of the auxiliary mounting hole 131, the auxiliary spring 130 provides additional elastic support and damping for the spindle 109, effectively suppressing the axial vibration and sway of the spindle 109 during high-speed operation and enhancing the vertical stability of the spindle 109.
[0025] In this embodiment of the utility model, a first bearing mounting hole 132 is provided at the lower end of the yarn tube seat 106, and the first planar thrust bearing 105 is installed in the first bearing mounting hole 132. By opening a first bearing mounting hole 132 at the lower end of the yarn package 106 and installing the first planar thrust bearing 105 inside the first bearing mounting hole 132, the bearing mounting hole forms a stable radial positioning and a reliable axial bearing surface for the first planar thrust bearing 105, ensuring that the first planar thrust bearing 105 always maintains the correct working position during high-speed rotation, thereby smoothly cooperating with the yarn package shaft 104 and the yarn package component 102.
[0026] In this embodiment of the utility model, a second bearing mounting hole 133 is provided at the upper end of the yarn tube 102, and the second planar thrust bearing 107 is installed in the second bearing mounting hole 133. By opening a second bearing mounting hole 133 at the upper end of the yarn package 102 and installing the second planar thrust bearing 107 inside the second bearing mounting hole 133, the second bearing mounting hole 133 provides stable radial support and precise axial positioning for the second planar thrust bearing 107, ensuring that the second planar thrust bearing 107 always maintains concentricity and perpendicularity with the yarn package 102 during high-speed operation, thereby forming a stable, low-friction axial force transmission interface with the elastic abutment component 112 above; effectively suppressing axial movement and sway, reducing tension fluctuations during yarn unwinding, and further reducing the risk of yarn breakage.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A spinning top structure with elastic limiting, comprising a spinning top body (101) and a yarn bobbin (102) mounted on the spinning top body (101), wherein the spinning top body (101) includes a base (103), characterized in that: The base (103) is provided with a yarn tube shaft (104) for sleeved with the yarn tube (102). The lower end of the yarn tube shaft (104) is sleeved with a first planar thrust bearing (105). A yarn tube seat (106) is sleeved on the first planar thrust bearing (105). The yarn tube seat (106) and the yarn tube (102) are mutually limited and fixedly engaged. The upper end of the yarn tube (102) is provided with a second planar thrust bearing (107). A guide post (108) extends upward and is fixed on the base (103). A spindle (109) is sleeved on the guide post (108). A vertical first threaded mounting hole (110) is opened at the top of the guide post (108). An adjusting bolt (111) is screwed into the first threaded mounting hole (110). The adjusting bolt (111) is used to axially limit the spindle (109) on the guide post (108). The upper end of the yarn bobbin shaft (104) is fitted with an elastic abutment component (112), the upper end of the spindle (109) is fixed with a head cover (113), the upper end of the elastic abutment component (112) is elastically abutted with the head cover (113), and the lower end of the elastic abutment component (112) is elastically abutted with the second planar thrust bearing (107).
2. The structure of the horse-dolly with elastic limit according to claim 1, characterized in that, The head cover (113) has a vertical second threaded mounting hole (114), and an abutment sleeve (115) is screwed into the second threaded mounting hole (114). The lower end face of the abutment sleeve (115) has an abutment hole (116). The upper end of the elastic abutment component (112) is inserted into the abutment hole (116) and abuts against the inner bottom surface of the abutment hole (116).
3. The structure of the horse-dewarping spindle with elastic limit according to claim 2, characterized in that, The upper end of the abutment sleeve (115) is provided with a screw joint (118).
4. The structure of the horse-dolly with elastic limit according to claim 3, characterized in that, The elastic abutment assembly (112) includes an abutment seat (119) and an abutment head (120) sleeved on the upper end of the yarn bobbin shaft (104). A spring member (121) is fixedly connected between the abutment seat (119) and the abutment head (120). The lower end face of the abutment head (120) is provided with an insertion hole (122). The upper end of the yarn bobbin shaft (104) extends into the insertion hole (122) for insertion and engagement. The abutment seat (119) abuts against the second planar thrust bearing (107) installed on the upper end of the yarn tube (102).
5. The structure of the horse-dolly with elastic limit according to claim 4, characterized in that, The inner bottom surface of the abutment hole (116) is provided with a first oblique abutment surface (124), and the upper end of the abutment head (120) is provided with a second oblique abutment surface (125) that abuts and cooperates with the first oblique abutment surface (124).
6. The structure of the horse-dolly with elastic limit according to claim 4, characterized in that, The lower end of the yarn tube (102) is provided with a positioning hole (126), and the upper end surface of the yarn tube seat (106) is fixed with a positioning post (128) that is inserted into the positioning hole (126).
7. The structure of the horse-dolly with elastic limit according to claim 4, characterized in that, The base (103) is provided with an auxiliary guide rod (129), and an auxiliary spring (130) is sleeved on the auxiliary guide rod (129). An auxiliary mounting hole (131) is opened at the lower end of the ingot (109). The auxiliary spring (130) extends into the auxiliary mounting hole (131) and abuts against the inner bottom surface of the auxiliary mounting hole (131).
8. The structure of the horse-dewarping spindle with elastic limit according to claim 4, characterized in that, The lower end of the yarn tube seat (106) is provided with a first bearing mounting hole (132), and the first planar thrust bearing (105) is installed in the first bearing mounting hole (132).
9. The structure of the horse-dewarping spindle with elastic limit according to claim 7, characterized in that, The upper end of the yarn bobbin (102) is provided with a second bearing mounting hole (133), and the second planar thrust bearing (107) is installed in the second bearing mounting hole (133).