Spinning oil frame height on-line adjusting device

By designing a C-shaped guide rail and a ratchet assembly, the height of the spinning oil rack can be adjusted online, which solves the problem of low production efficiency in the existing technology, improves production efficiency and reduces scrap rate.

CN224133257UActive Publication Date: 2026-04-17SHANGHAI TIEMEI MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TIEMEI MACHINERY CO LTD
Filing Date
2025-01-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing method of adjusting the height of the spinning oil rack requires stopping the production line for adjustment, resulting in low production efficiency and increased scrap rate, and it cannot flexibly adapt to the cooling point position requirements of different materials.

Method used

It adopts a C-shaped guide rail, a ratchet assembly, and a push rod assembly. The ratchet assembly moves within the guide rail cavity of the C-shaped guide rail, enabling flexible and real-time adjustment of the oil rack height. Combined with the counterweight adjustment assembly, it allows for fine-tuning and labor-saving operation.

Benefits of technology

It enables flexible, real-time adjustment of the oil rack height, improving production efficiency, reducing waste yarn rate, simplifying operation procedures, and reducing equipment wear and tear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spinning oil rack height on-line adjusting device which comprises a C-shaped guide rail, a pawl assembly, an oil rack assembly and an ejector rod assembly, the pawl assembly is clamped and fixed in a guide rail cavity of the C-shaped guide rail, the oil rack assembly is fixedly connected with the pawl assembly, and the extending direction of the oil rack assembly is parallel to a spinning plane; the pawl assembly comprises a driving end and a controlled end, when one end of the ejector rod assembly is arranged at the driving end, the controlled end is separated from the inner wall of the C-shaped guide rail, and the pawl assembly can move in a guide rail cavity of the C-shaped guide rail in the length direction to achieve height adjustment of the oil frame assembly. The ejector rod assembly is separated from the pawl assembly, so that the pawl assembly is clamped and fixed to the inner wall of the C-shaped guide rail, and the height of the oil frame assembly is fixed.
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Description

Technical Field

[0001] This utility model relates to the field of spinning equipment, specifically to an online height adjustment device for a spinning oil rack. Background Technology

[0002] In the melt spinning process, oiling the filament bundle is an indispensable step. After the molten filament bundle cools, timely oiling not only effectively eliminates static electricity carried by the bundle but also reduces friction in subsequent processes.

[0003] In the spinning process, different materials' filaments have different cooling point locations, requiring the oiling rack height to be flexibly adjusted to adapt to various material properties. However, existing oiling rack height adjustment methods have the following problems: First, each height adjustment requires pausing the production line or emptying the currently processed filaments, and then reloading the filaments after adjustment, a process that is both time-consuming and complex. Second, if a batch is found to be defective, it is necessary to go through steps such as stopping the machine, resetting the oiling rack height, and reloading to find the optimal oiling point. This not only wastes a lot of time and resources but also increases the scrap rate, seriously affecting production efficiency and cost control. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an online height adjustment device for a spinning oil rack. This device can flexibly and in real-time adjust the height of the oil rack, thereby improving the efficiency of device adjustment and reducing waste yarn rate.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an online height adjustment device for a spinning oil rack, comprising: a C-shaped guide rail, a ratchet assembly, an oil rack assembly, and a push rod assembly. The ratchet assembly is engaged and fixed in the guide rail cavity of the C-shaped guide rail. The oil rack assembly is fixedly connected to the ratchet assembly, and the extension direction of the oil rack assembly is parallel to the spinning plane. The ratchet assembly includes a driving end and a controlled end. When one end of the push rod assembly is disposed at the driving end, the controlled end disengages from the inner wall of the C-shaped guide rail. The ratchet assembly can move along the length direction within the guide rail cavity of the C-shaped guide rail.

[0006] In one embodiment of this utility model, the pawl assembly includes a housing, a first pawl, a second pawl, an elastic element, and a rotating shaft. The two ends of the elastic element are respectively connected to the driving ends of the first pawl and the second pawl. The first pawl and the second pawl are rotatably connected to the housing through the rotating shaft. There is a space between the driving ends of the first pawl and the second pawl to accommodate the end of the push rod assembly. The housing is provided with a first slot and a second slot. Under normal conditions, driven by the elastic element, the first pawl and the second pawl pass through the first slot and the second slot respectively and are engaged and fixed to the inner wall of the C-shaped guide rail. Under the drive of the push rod assembly, the first pawl and the second pawl rotate around the rotating shaft and respectively pass through the first slot and the second slot to retract into the housing.

[0007] In one embodiment of the present invention, the oil rack assembly includes a bracket and an oil rack, wherein the bracket is fixedly connected to the ratchet assembly and the oil rack is fixedly connected to the bracket.

[0008] In one embodiment of the present invention, the oil rack assembly further includes an oil nozzle, which is disposed on the oil rack.

[0009] In one embodiment of the present invention, the oil rack assembly further includes a wire guide hook assembly, the wire guide hook assembly includes a wire guide frame, the wire guide frame is disposed below the oil rack, and the wire guide frame is provided with a wire guide hook.

[0010] In one embodiment of the present invention, a counterweight adjustment component is further included. The counterweight adjustment component includes a wire rope, a counterweight block, and a stationary pulley fixedly connected to the C-shaped guide rail. The two ends of the wire rope are respectively connected to the oil rack assembly and the counterweight block, and the middle part of the wire rope passes around the stationary pulley.

[0011] In one embodiment of this utility model, the weight of the counterweight is less than the weight of the oil rack assembly.

[0012] In one embodiment of this utility model, the push rod assembly includes a push rod, a sleeve, a retaining ring, a limiting screw, and a compression spring. The sleeve is fitted onto the push rod, the retaining ring is fitted onto the outer periphery of the sleeve, and a limiting groove is provided on the outer periphery of the sleeve. The limiting screw passes through the limiting groove to fix the retaining ring to the push rod. The compression spring is fitted onto the sleeve, with its first end abutting against the retaining ring and its second end abutting against the limiting portion on the outer wall of the sleeve.

[0013] In one embodiment of this utility model, the limiting groove is right-angled, and after the limiting screw is adjusted to a predetermined position, it engages with the side of the limiting groove perpendicular to the extension direction of the top rod to fix the position of the top rod.

[0014] In one embodiment of the present invention, it further includes two C-shaped guide rails and two ratchet assemblies. The two ends of the oil rack assembly are respectively fixedly connected to the two ratchet assemblies, and the driving end of the push rod assembly controls the controlled ends of the two ratchet assemblies.

[0015] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0016] (1) In this embodiment of the utility model, a C-shaped guide rail, a ratchet assembly, an oil rack assembly, and a push rod assembly are provided. The ratchet assembly is engaged and fixed in the guide rail cavity of the C-shaped guide rail to achieve the purpose of fixing the oil rack assembly. The push rod assembly drives the ratchet assembly to move the ratchet assembly up and down in the guide rail cavity of the C-shaped guide rail, thereby adjusting the height of the oil rack assembly. The above process allows for flexible and real-time adjustment of the height of the oil rack assembly, and the operation is simple.

[0017] (2) In this embodiment of the present invention, a counterweight adjustment component is provided. By applying a relatively small upward or downward force to the oil rack component, the oil rack component moves slowly up / down, thereby achieving the effect of fine adjustment of the oil rack height and saving effort. At the same time, by sharing the weight of the oil rack component borne by the pawl component with the counterweight component, the wear of the pawl component can be effectively reduced.

[0018] (3) In the embodiment of this utility model, the push rod assembly is provided with a limiting screw, a limiting groove, a sleeve and a compression spring. The limiting screw and the limiting groove cooperate with each other to lock the drive end of the push rod out of the sleeve. The compression spring and the sleeve cooperate with each other to make the drive end of the push rod disengage from the pawl assembly by itself without external force, thus achieving the effect of simple operation and labor saving. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a front view of an online height adjustment device for a spinning oil rack according to this utility model;

[0021] Figure 2 This is a right view of an online height adjustment device for a spinning oil rack according to this utility model;

[0022] Figure 3 This is a right view of the ratchet assembly of an online height adjustment device for a spinning oil rack according to this utility model;

[0023] Figure 4 This is a right view showing the positional relationship between the pawl assembly and the push rod assembly in an online height adjustment device for a spinning oil rack according to this utility model.

[0024] Figure 5 This is a front view of the ratchet assembly of an online height adjustment device for a spinning oil rack according to this utility model;

[0025] Figure 6 This is a front view of the online height adjustment device for a spinning oil rack according to the present invention, showing the positional relationship between the pawl assembly and the push rod assembly;

[0026] Figure 7 This is a front view of the display top rod assembly of an online height adjustment device for a spinning oil rack according to this utility model;

[0027] Figure 8 This is a cross-sectional view of the display top rod assembly of an online height adjustment device for a spinning oil rack according to this utility model;

[0028] Figure 9 This is a three-dimensional structural diagram of the ratchet assembly of an online height adjustment device for a spinning oil rack according to this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1: Pawl assembly; 101: Housing; 102: First pawl; 103: Second pawl; 104: Elastic element; 105: Rotating shaft; 106: First limiting pin; 107: Second limiting pin; 108: First groove; 109: Second groove; 2: Oil rack assembly; 201: Bracket; 202: Oil rack; 203: Oil nozzle; 204: Guide hook; 301: Steel wire rope; 302: Counterweight; 303: Static pulley; 4: Top rod assembly; 401: Top rod; 402: Sleeve; 403: Retaining ring; 404: Limiting screw; 405: Compression spring; 406: Limiting groove; 407: Limiting part; 5: C-shaped guide rail. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Example

[0034] See Figure 1 and Figure 2The core of this utility model is to provide an online height adjustment device for a spinning oil rack, including: a C-shaped guide rail 5, a pawl assembly 1, an oil rack assembly 2, and a push rod assembly 4. The pawl assembly 1 is engaged and fixed in the guide rail cavity of the C-shaped guide rail 5. The oil rack assembly 2 is fixedly connected to the pawl assembly 1, and the extension direction of the oil rack assembly 2 is parallel to the spinning plane. The pawl assembly 1 includes a driving end and a controlled end. When one end of the push rod assembly 4 is set at the driving end, the controlled end is disengaged from the inner wall of the C-shaped guide rail 5. The pawl assembly 1 can move along the length direction in the guide rail cavity of the C-shaped guide rail 5.

[0035] When the height of the oil rack assembly 2 needs to be adjusted, the driving end of the pawl assembly 1 is driven by the push rod assembly 4, so that the controlled end of the pawl assembly 1 is disengaged from the inner wall of the C-shaped guide rail 5. At this time, the pawl assembly 1 can move in the extension direction of the guide rail cavity of the C-shaped guide rail 5, thereby driving the height adjustment of the oil rack assembly 2. After the adjustment is completed, the push rod assembly 4 is separated from the pawl assembly 1 so that the pawl assembly 1 is re-engaged in the guide rail cavity of the C-shaped guide rail 5, so that the oil rack assembly 2 is relatively fixed at the set height.

[0036] See Figures 3 to 6 Preferably, the pawl assembly 1 includes a housing 101, a first pawl 102, a second pawl 103, an elastic element 104, and a rotating shaft 105. The two ends of the elastic element 104 are respectively connected to the driving ends of the first pawl 102 and the second pawl 103. The first pawl 102 and the second pawl 103 are rotatably connected to the housing 101 through the rotating shaft 105. There is a space between the driving ends of the first pawl 102 and the second pawl 103 to accommodate the end of the push rod assembly 4. The housing 101 is provided with a first slot 108 and a second slot 109. Under normal conditions, driven by the elastic element 104, the first pawl 102 and the second pawl 103 pass through the first slot 108 and the second slot 109 respectively and are engaged and fixed with the inner wall of the C-shaped guide rail 5. Under the drive of the push rod assembly 4, the first pawl 102 and the second pawl 103 rotate around the rotating shaft and pass through the first slot 108 and the second slot 109 respectively to retract into the housing 101.

[0037] When the drive end of the push rod assembly 4 does not enter the drive space of the pawl assembly 1, the first pawl 102 and the second pawl 103, under the force of the elastic element 104, pass through the first slot 108 and the second slot 109 respectively and are locked and fixed to the inner wall of the C-shaped guide rail 5. When the push rod assembly 4 enters the drive space of the pawl assembly 1, the first pawl 102 and the second pawl 103, under the drive of the push rod assembly 4, rotate around the rotating shaft 105 in opposite directions, so that the first pawl 102 and the second pawl 103 pass through the first slot 108 and the second slot 109 respectively and disengage from the inner wall of the C-shaped guide rail 5. The pawl assembly 1 moves along the length direction in the guide rail cavity of the C-shaped guide rail 5.

[0038] Optionally, the housing 101 is provided with a first limiting pin 106 and a second limiting pin 107 to achieve the limiting effect when the first pawl 102 and the second pawl 103 are installed.

[0039] Optionally, the first pawl 102 and the second pawl 103 are anti-fall pawls: the first pawl 102 and the second pawl 103 control the pawl assembly 1 to prevent it from moving downwards but do not restrict the pawl assembly 1 from moving upwards. If the oil rack assembly 2 needs to be adjusted upwards, an upward force can be directly applied to the oil rack assembly 2 to make the pawl assembly 1 move vertically upwards in the guide cavity of the C-shaped guide rail 5.

[0040] See Figure 1 and Figure 2 Preferably, the oil rack assembly 2 includes a bracket 201 and an oil rack 202. The bracket 201 is fixedly connected to the pawl assembly 1, and the bracket 201 is fixedly connected to the oil rack 202, thereby realizing flexible assembly of the bracket 201 and the oil rack 202.

[0041] Optionally, the bracket 201 is provided with an elongated slot, and the elongated slot and the oil rack 202 are provided with corresponding fixing holes. One end of the oil rack 202 is fitted into the elongated slot and aligned with the fixing hole. Bolts pass through the fixing holes to achieve a stable and flexible connection between the bracket 201 and the oil rack 202, which facilitates installation and adjustment.

[0042] See also Figure 1 and Figure 2 Preferably, the oil rack assembly 2 further includes an oil nozzle 203, which is disposed on the oil rack 202 and is used to apply oil to the solidified filament bundle.

[0043] See also Figure 1 and Figure 2 Preferably, the oil frame assembly 2 further includes a wire guide hook assembly, which includes a wire guide frame located below the oil frame 202. The wire guide frame is equipped with a wire guide hook 204 to ensure the smoothness and stability of the wire bundle during the winding process.

[0044] See also Figure 2 Preferably, it also includes a counterweight assembly, which includes a wire rope 301, a counterweight 302 and a counterweight 303 fixedly connected to the C-shaped guide rail 5. The two ends of the wire rope 301 are respectively connected to the oil rack assembly 2 and the counterweight 302, and the middle of the wire rope 301 passes around the counterweight 303.

[0045] By distributing the weight of the oil rack assembly 2 borne by the pawl assembly 1, the wear and tear on the pawl assembly 1 is effectively reduced. When adjusting the height of the oil rack 202, the force provided by the counterweight 303 allows for fine-tuning of the height of the oil rack 202, ensuring the accuracy of the height adjustment.

[0046] Preferably, the weight of the counterweight 302 is less than the weight of the oil rack assembly 2. When adjusting the height of the oil rack assembly 2, this prevents the oil rack assembly 2 from automatically shifting in the vertical direction.

[0047] Optionally, the weight of the counterweight 302 is slightly less than the weight of the oil rack assembly 2. When adjusting the height of the oil rack assembly 2, the oil rack assembly 2 can be moved up or down by applying a relatively small upward or downward force, which saves effort.

[0048] See Figure 7 and Figure 8 Preferably, the push rod assembly 4 includes a push rod 401, a sleeve 402, a retaining ring 403, a limiting screw 404, and a compression spring 405. The sleeve 402 is sleeved on the push rod 401, the retaining ring 403 is sleeved on the outer periphery of the sleeve 402, and a limiting groove 406 is provided on the outer periphery of the sleeve 402. The limiting screw 404 passes through the limiting groove 406 to fix the retaining ring 403 to the push rod 401. The compression spring 405 is sleeved on the sleeve 402, and the first end of the compression spring 405 abuts against the retaining ring 403, and the second end of the compression spring 405 abuts against the limiting part 407 on the outer wall of the sleeve 402.

[0049] When the retaining ring 403 moves toward the driving end of the push rod 401, the end of the push rod 401 extends out of the sleeve 402. The force applied to the retaining ring 403 drives the push rod 401 into the receiving space of the pawl assembly 1. At this time, the compression spring 405 is in a compressed state. When it is necessary to pull the push rod 401 out of the receiving space of the pawl assembly 1, the retaining ring 403 is rotated to disengage the limiting screw 404 from the limiting groove 406. The compression spring 405 drives the push rod 401 to retract to restore its original state, causing the end of the push rod 401 to disengage from the receiving space of the pawl assembly 1.

[0050] See also Figure 7 Preferably, the limiting groove is right-angled, and after the limiting screw 404 is adjusted to the predetermined position, it engages with the side of the limiting groove 406 perpendicular to the extension direction of the push rod 401 to fix the position of the push rod 401.

[0051] A right-angled limiting groove is provided. When the retaining ring 403 is adjusted to the target position, force is applied to push the retaining ring 403 to rotate, thereby fixing the position of the retaining ring 403 in the length direction. This also makes the end of the push rod 401 reliably fixed to the drive end of the pawl assembly 1, which is convenient for operation and adjustment.

[0052] See also Figure 1 Preferably, it also includes two C-shaped guide rails 5 and two ratchet assemblies 1. The two ends of the oil rack assembly 2 are fixedly connected to the two ratchet assemblies 1 respectively, and the driving end of the push rod assembly 4 controls the controlled end of the two ratchet assemblies 1.

[0053] By setting C-shaped guide rails 5 and pawl assemblies 1 at both ends of the oil rack 202, the adjustment mechanism becomes more stable.

[0054] The working process of this utility model will be further explained below:

[0055] When the spinning oil rack device is stationary, the pawl assembly 1 engages with the inner wall of the C-shaped guide rail 5, and the oil rack assembly 2 is fixedly connected to the pawl assembly 1 to fix the oil rack 202 at the set height. When the height of the oil rack 202 needs to be adjusted, it can be achieved through the following four steps. First, push the retaining ring 403 towards the driving end of the push rod 401 to extend the drive rod 401 out of the sleeve 402. After the push rod 401 extends, rotate the retaining ring 403 so that the limiting screw 404 is locked in the limiting part 407. The positions of the retaining ring 403 and the push rod 401 are fixed, and the compression spring 405 is in a compressed state. The second step involves applying force to the retaining ring 403 to drive the drive end of the push rod 401 into the drive receiving space of the pawl assembly 1. At this time, the first pawl 102 and the second pawl 103 rotate around the rotating shaft 105 under the action of the force, disengaging from the inner wall of the C-shaped guide rail 5. The pawl assembly 1 can then move along the length direction within the guide rail cavity of the C-shaped guide rail 5, allowing the oil holder 202 to move vertically. The third step involves applying an upward force to the oil holder assembly 2 when the height of the oil holder 202 needs to be adjusted upwards, and vice versa when downwards is required. This adjustment process allows the oil holder 202 to be adjusted to the ideal height. In the fourth step, rotating the retaining ring 403 causes the limiting screw 404 to disengage from the limiting part 407. The compression spring 405 releases its elastic potential energy, driving the push rod 401 to retract to the sleeve 402. This process causes the push rod 401 to disengage from the receiving space of the pawl assembly 1. At the same time, the first pawl 102 and the second pawl 103 rotate around the rotating shaft 105 under the action of the elastic element 104 and engage and fix with the guide cavity of the C-shaped guide rail 5, thus fixing the oil rack 202 at the set height.

[0056] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific identification content executed by the system and device described above can be referred to the corresponding process in the foregoing method embodiments.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A device for online adjustment of the height of a spin finish stand, characterized in that include: The system comprises a C-shaped guide rail, a ratchet assembly, an oil holder assembly, and a push rod assembly. The ratchet assembly is engaged and fixed in the guide rail cavity of the C-shaped guide rail. The oil holder assembly is fixedly connected to the ratchet assembly, and the extension direction of the oil holder assembly is parallel to the spinning plane. The pawl assembly includes a driving end and a controlled end. When one end of the push rod assembly is disposed at the driving end, the controlled end disengages from the inner wall of the C-shaped guide rail. The pawl assembly is capable of moving along the length direction within the guide rail cavity of the C-shaped guide rail.

2. The spinning head height on-line adjusting device according to claim 1, characterized in that, The pawl assembly includes a housing, a first pawl, a second pawl, an elastic element, and a rotating shaft. The two ends of the elastic element are respectively connected to the driving ends of the first pawl and the second pawl. The first pawl and the second pawl are rotatably connected to the housing through the rotating shaft. There is a space between the driving ends of the first pawl and the second pawl to accommodate the end of the push rod assembly. The housing is provided with a first slot and a second slot. Under normal conditions, driven by the elastic element, the first pawl and the second pawl pass through the first slot and the second slot respectively and are engaged and fixed to the inner wall of the C-shaped guide rail. Under the drive of the push rod assembly, the first pawl and the second pawl rotate around the rotating shaft and respectively pass through the first slot and the second slot to retract into the housing.

3. The spinning head height on-line adjusting device according to claim 1, wherein, The oil rack assembly includes a bracket and an oil rack, wherein the bracket is fixedly connected to the ratchet assembly and the oil rack is fixedly connected to the bracket.

4. The spinning head height on-line adjusting device according to claim 3, characterized in that, The oil rack assembly also includes an oil nozzle, which is disposed on the oil rack.

5. The spinning head height on-line adjusting device according to claim 3, wherein, The oil rack assembly also includes a wire guide hook assembly, which includes a wire guide frame located below the oil rack and equipped with a wire guide hook.

6. The spinning head height on-line adjustment apparatus according to claim 1, wherein It also includes a counterweight adjustment assembly, which includes a wire rope, a counterweight block, and a stationary pulley fixedly connected to the C-shaped guide rail. The two ends of the wire rope are respectively connected to the oil rack assembly and the counterweight block, and the middle of the wire rope passes around the stationary pulley.

7. The online height adjustment device for the spinning oil rack according to claim 6, characterized in that, The weight of the counterweight is less than the weight of the oil rack assembly.

8. The spinning head height on-line adjustment apparatus according to claim 1, wherein The push rod assembly includes a push rod, a sleeve, a retaining ring, a limiting screw, and a compression spring. The sleeve is fitted onto the push rod, the retaining ring is fitted onto the outer circumference of the sleeve, and a limiting groove is provided on the outer circumference of the sleeve. The limiting screw passes through the limiting groove to fix the retaining ring to the push rod. The compression spring is fitted onto the sleeve, with its first end abutting against the retaining ring and its second end abutting against the limiting portion on the outer wall of the sleeve.

9. The spinning head height on-line adjustment apparatus according to claim 8, wherein The limiting groove is right-angled. After the limiting screw is adjusted to the predetermined position, it engages with the side of the limiting groove that is perpendicular to the extension direction of the push rod, so as to fix the position of the push rod.

10. The spinning head height on-line adjustment apparatus according to claim 1, wherein It also includes two C-shaped guide rails and two ratchet assemblies. The two ends of the oil rack assembly are respectively fixedly connected to the two ratchet assemblies, and the driving end of the push rod assembly controls the controlled end of the two ratchet assemblies.