Spandex winding head friction roller support guiding device

Abstract

The utility model relates to the technical field of textile machinery, in particular to a spandex winding head friction roller support guide device which comprises a through vertical guide hole formed between a friction roller upper frame and a friction roller lower frame, linear bearings which are separated from each other are arranged between a guide cylinder and a guide shaft, and the guide cylinder is connected with the guide shaft through the linear bearings and the guide shaft. The vertical relative movement between the friction roller upper frame and the friction roller lower frame is more stable and accurate, friction and vibration are reduced, and the winding accuracy is guaranteed. The flexible supporting piece is arranged between the linear bearing and the guide cylinder, vibration and impact are effectively absorbed, abrasion of parts is reduced, and the service life of the device is prolonged. A driving assembly capable of driving the friction roller upper frame and the friction roller lower frame to vertically and relatively move is arranged at the lower end of the guide shaft. And a stable power source for relative movement of the friction roller upper frame and the friction roller lower frame is provided. The upper friction roller frame and the lower friction roller frame are always kept centered in the moving process through supporting of the sliding table and the sliding table bearing, the upper friction roller frame and the lower friction roller frame are effectively matched with the guiding device, and deviation or deformation caused by uneven stress is avoided.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a guide device for a friction roller bracket of a spandex winding head. Background Technology

[0002] During the winding process of spandex, the friction roller support component moves up and down as the yarn cake increases. The original device is guided by two slide bearings and driven by a central cylinder to move the friction roller support up and down. Due to various factors such as processing precision and assembly, uneven force on the left and right slide bearings is prone to occur, leading to damage to the slide bearings. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a guide device for the friction roller support of a spandex winding head, which achieves stable and precise vertical relative movement between the upper and lower friction roller supports by setting linear bearings and guide shafts, thereby ensuring the running accuracy of the winding head.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution: a guide device for a friction roller bracket of an spandex winding head. The friction roller bracket is set at the front end of a guide seat, and the friction roller is mounted on the guide seat through the friction roller bracket. The friction roller bracket includes an upper friction roller bracket and a lower friction roller bracket. A through vertical guide hole is provided between the upper and lower friction roller brackets. A guide cylinder is provided inside the vertical guide hole, and a guide shaft is provided inside the guide cylinder. A linear bearing is provided between the guide cylinder and the guide shaft. Through the linear bearing and the guide shaft, the vertical relative movement between the upper and lower friction roller brackets is more stable and precise, reducing friction and vibration and ensuring winding accuracy. A flexible support is provided between the linear bearing and the guide cylinder, which effectively absorbs vibration and impact, reduces component wear, and extends the service life of the device. A retaining ring is provided at the top of the linear bearing, and a limiting retaining ring is provided at the bottom of the linear bearing. A mounting plate is provided at the top of the guide cylinder, and the guide cylinder is fixedly connected to the upper friction roller bracket through the mounting plate. A drive assembly is provided at the lower end of the guide shaft to drive the vertical relative movement of the upper and lower friction roller brackets. The drive assembly provides a stable power source for the relative motion of the upper and lower friction rollers.

[0005] As a further embodiment of this invention, the flexible support includes several rubber rings evenly distributed along the axis, and the inner wall of the guide cylinder is provided with several annular grooves along the axial direction. The rubber rings are correspondingly disposed within the annular grooves, and the rubber rings continuously absorb the compressive force generated between the linear bearing and the guide cylinder. The good elasticity and shock absorption performance of the rubber rings effectively absorb the compressive force generated between the linear bearing and the guide cylinder, and can evenly distribute the compressive force, avoiding local stress concentration and reducing the impact of vibration and impact on the device. During high-speed operation or load changes, the rubber rings provide a flexible buffering effect, avoiding component friction and vibration caused by rigid contact.

[0006] As a further embodiment of this invention, the linear bearing includes an upper linear bearing and a lower linear bearing. The separation of the upper and lower linear bearings makes the vertical movement of the friction roller support more stable, reducing swaying and offset. A retaining ring is located at the top of the upper linear bearing, and a limiting retaining ring is located at the bottom of the lower linear bearing. The retaining ring and the limiting retaining ring effectively limit the axial displacement of the linear bearing, thus limiting the axial displacement of the guide shaft during movement. The lower end of the guide shaft has a variable diameter and is designed as a threaded shaft, forming an installation step. This makes the installation of the drive assembly more convenient and secure. The threaded shaft can be quickly fixed to the drive assembly using nuts or other fasteners, facilitating assembly.

[0007] As a further embodiment of this utility model, the drive assembly includes a connecting plate and a contact pressure cylinder disposed at the lower part of the connecting plate. The shaft end of the contact pressure cylinder is perpendicularly connected to the bottom surface of the connecting plate. The connecting plate is provided with a mounting hole, and the threaded shaft of the guide shaft extends downward out of the mounting hole. The threaded shaft is threadedly connected to the nut.

[0008] As a further embodiment of this invention, two slides are provided between the contact surfaces of the lower and upper friction roller frames. The two slides are symmetrically arranged along the guide axis, and each slide has a slide bearing. The supporting function of the slide bearings ensures that the upper and lower friction roller frames remain aligned during movement, effectively cooperating with the guiding device to prevent offset or deformation caused by uneven force.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a guide device for a spandex winding head friction roller bracket, comprising a through vertical guide hole between an upper friction roller bracket and a lower friction roller bracket. A guide cylinder is housed within the vertical guide hole, and a guide shaft is housed within the guide cylinder. Separate linear bearings are provided between the guide cylinder and the guide shaft. Through the linear bearings and the guide shaft, the vertical relative movement between the upper and lower friction roller brackets is made more stable and precise, reducing friction and vibration and ensuring winding accuracy. A flexible support component is provided between the linear bearing and the guide cylinder, effectively absorbing vibration and impact, reducing component wear, and extending the service life of the device. A retaining ring is provided at the top of the linear bearing, and a limiting retaining ring is provided at the bottom of the linear bearing. A mounting plate is provided at the top of the guide cylinder, and the guide cylinder is fixedly connected to the upper friction roller bracket via the mounting plate. A drive assembly is provided at the lower end of the guide shaft to drive the vertical relative movement of the upper and lower friction roller brackets. The drive assembly provides a stable power source for the relative movement of the upper and lower friction roller brackets.

[0010] Two slides are provided between the contact surfaces of the lower and upper friction roller frames. The support of the slide bearings ensures that the upper and lower friction roller frames remain aligned during movement, effectively cooperating with the guide device to avoid displacement or deformation caused by uneven force. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention;

[0012] Figure 2 This is a side view of the present invention;

[0013] Figure 3 This is a schematic diagram of the guide shaft structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the guide cylinder structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the connecting plate structure of this utility model.

[0016] Wherein: 1-slide table, 101-slide table bearing, 2-mounting plate, 3-guide shaft, 301-mounting step, 302-threaded shaft, 4-connecting plate, 401-mounting hole, 5-linear bearing, 6-rubber ring, 7-guide cylinder, 701-annular groove, 9-friction roller upper frame, 10-friction roller lower frame, 11-hole retaining ring, 12-limiting retaining ring, 13-contact pressure cylinder. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] like Figures 1 to 2 As shown, a guide device for a spandex winding head friction roller bracket is provided. The friction roller bracket is located at the front end of a guide seat, and the friction roller is mounted on the guide seat via the friction roller bracket. The friction roller bracket includes an upper friction roller bracket 9 and a lower friction roller bracket 10. Two slides 1 are provided between the contact surfaces of the lower and upper friction roller brackets, and the two slides are symmetrically arranged along the guide axis. A slide bearing 101 is provided inside the slide. The slides 1 and the slide bearing 101 are arranged vertically, guiding the lower and upper friction roller brackets to always be in a vertical relative sliding state. The two slides are symmetrically arranged along the guide axis, evenly distributing the force between the upper and lower friction roller brackets, offsetting the local stress concentration caused by relative sliding, and preventing tilting and jamming between the upper and lower friction roller brackets. The entire process is smooth and seamless sliding.

[0021] A through vertical guide hole is provided between the upper and lower frames of the friction roller. A guide cylinder 7 is provided inside the vertical guide hole, and a guide shaft 3 is provided inside the guide cylinder. A linear bearing 5 is provided between the guide cylinder and the guide shaft. A retaining ring 11 for the hole is provided at the top of the linear bearing, and a limiting retaining ring 122 is provided at the bottom of the linear bearing. The linear bearing includes an upper linear bearing and a lower linear bearing. The retaining ring 11 is provided at the top of the upper linear bearing to limit the axial displacement of the upper linear bearing and ensure its fixed position. The limiting retaining ring 12 is provided at the bottom of the lower linear bearing and can withstand the axial load of the lower linear bearing to prevent the bearing from being damaged due to excessive force.

[0022] like Figure 4 As shown, a flexible support is provided between the outer surface of the linear bearing and the guide cylinder. The flexible support includes four rubber rings 6 evenly distributed along the axis. Two rubber rings 6 are disposed between the upper linear bearing and the guide cylinder, and the other two rubber rings are disposed between the lower linear bearing and the guide cylinder. The inner wall of the guide cylinder is provided with several annular grooves 701 along the axial direction. The rubber rings are correspondingly disposed in the annular grooves. The rubber rings continuously absorb the extrusion force generated between the linear bearing and the guide cylinder.

[0023] like Figure 5 As shown, a mounting plate 2 is provided at the top of the guide cylinder, and the guide cylinder is fixedly connected to the upper frame of the friction roller through the mounting plate. A drive assembly is provided at the lower end of the guide shaft to drive the upper frame and the lower frame of the friction roller to move vertically relative to each other. The drive assembly includes a connecting plate and a contact pressure cylinder 13 provided at the lower part of the connecting plate. The shaft end of the contact pressure cylinder is vertically connected to the bottom surface of the connecting plate. A mounting hole 401 is provided on the connecting plate 4, and the lower end of the guide shaft is a threaded shaft 302 with a variable diameter.

[0024] like Figure 3 As shown, a mounting step 301 is formed at the threaded shaft. The mounting step 301 engages with the connecting plate 4, restricting the displacement of the threaded shaft 302 in the vertical direction, ensuring precise installation and stable assembly. The threaded shaft of the guide shaft extends downward into the mounting hole, and the threaded shaft is threadedly connected to the nut. By tightening the nut, it engages with the connecting plate, and the movement of the connecting plate drives the friction roller lower frame to move synchronously.

[0025] When the contact pressure cylinder is activated, it drives the lower friction roller frame to slide relative to the upper friction roller frame via the connecting plate. During the sliding process, the slide tables and slide table bearings symmetrically arranged on both sides of the guide shaft slide synchronously in the vertical direction, guiding the lower and upper friction roller frames to always maintain a vertical relative sliding state. The two slide tables 1 balance the forces between the upper and lower friction roller frames, offsetting the local stress concentration caused by the relative sliding. The two slide table bearings 101 remain undamaged, continuously guiding and driving the friction roller to move horizontally up and down in the vertical direction.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A guide device for a friction roller bracket of a spandex winding head, wherein the friction roller bracket is disposed at the front end of a guide seat, and the friction roller is mounted on the guide seat via the friction roller bracket, the friction roller bracket comprising an upper friction roller bracket (9) and a lower friction roller bracket (10), characterized in that, A through vertical guide hole is provided between the upper frame of the friction roller and the lower frame of the friction roller. A guide cylinder (7) is provided in the vertical guide hole. A guide shaft (3) is provided in the guide cylinder. A linear bearing (5) is provided between the guide cylinder and the guide shaft. A flexible support is provided between the outside of the linear bearing and the guide cylinder. A retaining ring (11) for the hole is provided at the top of the linear bearing. A limiting retaining ring (12) is provided at the bottom of the linear bearing. The top of the guide cylinder is provided with a mounting plate (2), and the guide cylinder is fixedly connected to the upper frame of the friction roller through the mounting plate. The lower end of the guide shaft is provided with a drive assembly that can drive the upper frame of the friction roller and the lower frame of the friction roller to move vertically relative to each other.

2. The spandex winding head friction roller bracket guide device according to claim 1, characterized in that, The flexible support includes several rubber rings (6) evenly distributed along the axis. The inner wall of the guide cylinder is provided with several annular grooves (701) along the axial direction. The rubber rings are correspondingly arranged in the annular grooves. The rubber rings continuously absorb the extrusion force generated between the linear bearing and the guide cylinder.

3. The spandex winding head friction roller bracket guide device according to claim 1, characterized in that, The linear bearing (5) includes an upper linear bearing and a lower linear bearing. A retaining ring (11) is provided at the top of the upper linear bearing, and a limiting retaining ring (12) is provided at the bottom of the lower linear bearing. The lower end of the guide shaft is modified to be a threaded shaft (302), and an installation step (301) is formed at the threaded shaft.

4. The spandex winding head friction roller bracket guide device according to claim 2, characterized in that, The drive assembly includes a connecting plate and a contact pressure cylinder (13) disposed at the lower part of the connecting plate. The shaft end of the contact pressure cylinder is vertically connected to the bottom surface of the connecting plate. The connecting plate (4) is provided with a mounting hole (401). The threaded shaft of the guide shaft extends downward out of the mounting hole (401) and is threadedly connected to the nut.

5. The spandex winding head friction roller bracket guide device according to claim 1, characterized in that, Two slides (1) are provided between the contact surfaces of the lower friction roller frame and the upper friction roller frame. The two slides are symmetrically arranged along the guide axis, and slide bearings (101) are provided inside the slides.

Images