A method of manufacturing a fiber wool separation module for an oil and gas separator

By using an integrated injection molding method that combines fiber cotton tubes and a plastic skeleton, the problems of fiber cotton easily falling out and relative movement are solved, achieving high-quality molding and stable separation.

CN117681372BActive Publication Date: 2026-06-16SHENTONG TECH GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENTONG TECH GRP CO LTD
Filing Date
2023-04-24
Publication Date
2026-06-16

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Abstract

The present application relates to oil and gas separator technical field, disclose a kind of manufacturing method of oil and gas separator fiber cotton separation module, the fiber cotton separation module includes plastic framework and fiber cotton cylinder, and fiber cotton cylinder is equipped with suture part;Suture part is clamped in clamping part;Manufacturing method includes: sheet-like fiber cotton is sutured into fiber cotton cylinder;Fiber cotton cylinder is set in injection mold;Wherein, multiple inner shrinkage blocks are tensioned on the inner wall of fiber cotton cylinder;At least two sliding blocks are clamped from the outside of fiber cotton cylinder Suture part, and multiple sliding blocks are movably attached to the outer wall of fiber cotton cylinder;Ejector sleeve is movably arranged below fiber cotton cylinder and multiple sliding blocks;Molten plastic is injected into injection mold to form plastic framework;After cooling for a predetermined time, injection mold opens, and the fiber cotton separation module is ejected by ejector sleeve.The present application has the advantages that the manufacturing method for manufacturing fiber cotton separation module has high quality, and the process is simple, and the structure of forming mold is compact.
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Description

Technical Field

[0001] This invention relates to the field of oil-gas separator technology, and in particular to a method for manufacturing a fiber cotton separation module for an oil-gas separator. Background Technology

[0002] Automotive oil-gas separators are mainly divided into passive and active types. Although passive oil-gas separators have a simple structure, their separation efficiency is low. Active oil-gas separators have high separation efficiency and are increasingly used in automobiles.

[0003] Active oil-gas separators mainly consist of a coarse separation module and a fine separation module. The coarse separation module typically uses a traditional baffle or labyrinthine flow circuit. The fine separation module mainly comprises a sleeve, a centrifugal separation module, and a separation filter module. The centrifugal separation module is generally driven by a motor-driven impeller. The separation filter module mainly consists of fiber cotton and a support frame. The fiber cotton is inserted into the support frame to filter the engine oil.

[0004] In practical use, the fiber cotton is prone to falling out of the support frame, and during high-speed rotation, the fiber cotton is also prone to relative movement with the support frame, affecting the separation effect. Therefore, it is necessary to develop a manufacturing method in which the fiber cotton and the support frame are integrally molded to ensure both the effectiveness and molding quality of the fiber cotton separation module. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to propose a manufacturing method for an oil-gas separator fiber cotton separation module with high molding quality, simple process and compact molding mold structure.

[0006] The technical solution adopted by this invention to solve its technical problem is to propose a manufacturing method for a fiber cotton separation module of an oil-gas separator. The fiber cotton separation module includes a plastic frame and a fiber cotton cylinder, wherein the fiber cotton cylinder and the plastic frame are integrally injection molded; wherein...

[0007] The fiber cotton tube is a hollow cylindrical shape, and the fiber cotton tube is provided with a sewing part; the plastic skeleton includes a top ring, a bottom ring, a clamping part and multiple ribs, the clamping part and multiple ribs are connected between the top ring and the bottom ring, and are arranged along the circumference of the top ring and the bottom ring; the sewing part is clamped in the clamping part;

[0008] The manufacturing method includes:

[0009] The sheet-like fiber cotton is sewn into the fiber cotton tube, and the sewn fiber cotton tube is shaped into a hollow cylindrical shape using a shaping tool.

[0010] The fiber cotton tube is placed in an injection mold; wherein the injection mold includes an internal shrinking mechanism, an ejector sleeve, and multiple sliders; the internal shrinking mechanism includes a mounting base and multiple shrinking blocks movably mounted on the mounting base, the multiple shrinking blocks being tensioned on the inner wall of the fiber cotton tube; the multiple sliders are arranged circumferentially along the internal shrinking mechanism, at least two of the sliders clamping the sewn part from the outside of the fiber cotton tube, and the multiple sliders are movably in contact with the outer wall of the fiber cotton tube; the ejector sleeve is movably disposed below the fiber cotton tube and the multiple sliders;

[0011] Molten plastic is injected into the injection mold to form the plastic skeleton, wherein the plastic skeleton and the fiber cotton tube are injection molded together to form the fiber cotton separation module, and the bottom ring is attached to the ejector sleeve;

[0012] After a preset cooling time, the injection mold opens; wherein, multiple sliders pull outwards and detach from the fiber cotton separation module; multiple internal shrink blocks move inwards relative to the mounting base and detach from the inner wall of the fiber cotton cylinder; the ejector sleeve ejects the fiber cotton separation module.

[0013] Furthermore, the plurality of sliders include a first slider and a second slider. The first slider is provided with a plurality of first clamping protrusions on the side near the second slider, and the second slider is provided with a plurality of second clamping protrusions on the side near the first slider. The plurality of second clamping protrusions correspond one-to-one with the plurality of first clamping protrusions, and there is a gap between the second clamping protrusions and the first clamping protrusions.

[0014] The suture is held in the gap.

[0015] Furthermore, the cross-sections of both the first clamping protrusion and the second clamping protrusion are semi-circular.

[0016] Furthermore, the fiber cotton tube is symmetrically provided with two sewing portions;

[0017] The plurality of sliders further includes a third slider and a fourth slider, wherein the third slider is provided with a plurality of first clamping protrusions and the fourth slider is provided with a plurality of second clamping protrusions;

[0018] The stitched portion, away from the first and second sliders, is clamped between the first clamping tooth on the third slider and the second clamping tooth on the fourth slider.

[0019] Furthermore, the third slider is centrally symmetrical to the first slider, and the fourth slider is centrally symmetrical to the second slider;

[0020] The first slider, the second slider, the third slider, and the fourth slider move in sequence to counteract each other.

[0021] Furthermore, each of the multiple sliders has a soft rubber material at one end near the inward retraction mechanism; the soft rubber material on the multiple sliders is in contact with the outer wall of the fiber cotton tube.

[0022] Furthermore, the mounting base has multiple dovetail grooves along its circumference, and each of the inner recessed blocks is provided with a dovetail block, which is movably disposed in the dovetail groove;

[0023] The dovetail groove gradually slopes outward from top to bottom.

[0024] Furthermore, the plurality of the recessed blocks are arranged from bottom to top to form a first column, a second column, and a third column, wherein the diameter of the first column is greater than the diameter of the second column, and the diameter of the second column is greater than the diameter of the third column;

[0025] The fiber cotton tube is tensioned on the first column, and the second column supports the fiber cotton tube.

[0026] Furthermore, the ejector sleeve is provided with a clamping step;

[0027] The second column is inserted into the ejector sleeve and is in movable contact with the ejector sleeve, while the pressing step is movably abutted against the first column.

[0028] Furthermore, the bottom of the first slider, the second slider, the third slider, and the fourth slider are all provided with an arc-shaped groove;

[0029] The ejector sleeve is movably disposed in one of the multiple arc-shaped grooves.

[0030] Compared with the prior art, the present invention has at least the following beneficial effects:

[0031] In this invention, the fiber cotton tube is formed by sewing two pieces of fiber cotton together, leaving two seam sections (i.e., seam seams) on the outer wall of the fiber cotton tube. When the fiber cotton tube, shaped into a hollow cylindrical shape, is positioned and fixed in the injection mold, the inner wall of the fiber cotton tube is tensioned by multiple shrinking blocks in the shrinking mechanism, so that the inner ring of the fiber cotton tube is fixed while the inner wall of the fiber cotton tube is kept cylindrical; the outer wall of the fiber cotton tube is clamped by multiple sliders, and the sliders are in contact with the outer wall of the fiber cotton tube, so that the outer wall of the fiber cotton tube is fixed while the outer wall of the fiber cotton tube is kept cylindrical; and the corresponding sliders are respectively provided with a first clamping protrusion and a second clamping protrusion with a semi-circular cross section, which clamps the seam section on the fiber cotton tube, ensuring that the fiber cotton tube is clamped and positioned, and ensuring that the seam section will not overflow or deform excessively during injection molding, resulting in high molding quality of the fiber cotton separation module. After the fiber cotton tube and the plastic frame are integrally injection molded, the two seams of the fiber cotton tube are clamped by the clamping parts on the plastic frame. The two ends of the fiber cotton tube are limited and supported by the top ring and bottom ring respectively. During high-speed rotation, the fiber cotton tube and the plastic frame will not move relative to each other or separate, which can effectively ensure the performance of the fiber cotton separation module. In addition, the ends of multiple sliders near the fiber cotton tube are provided with soft rubber material. The hardness of this soft material is less than that of the slider body material. When the slider clamps the outer wall of the fiber cotton tube, it can prevent damage to the fiber cotton tube and prevent glue overflow during injection molding. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the fiber cotton separation module of the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0034] Figure 3 This is an assembly drawing of the sprue bushing, fixed mold core, slider, ejector sleeve, and internal retraction mechanism of an injection mold.

[0035] Figure 4 for Figure 3 A structural diagram showing the removal of the sprue bushing and fixed mold core;

[0036] Figure 5 This is a schematic diagram of the assembly of the internal retraction mechanism and the fiber cotton separation module;

[0037] Figure 6 This is an assembly diagram of the slider and fiber cotton separation module;

[0038] Figure 7 This is an assembly diagram of the internal retraction mechanism, the fiber cotton separation module, and the ejector sleeve.

[0039] Figure 8 This is a schematic diagram of the internal retraction mechanism;

[0040] Figure 9 This is a schematic diagram of the assembly of the ejector sleeve with the first and second sliders;

[0041] Figure 10 This is a flowchart of the manufacturing process for the fiber separation module.

[0042] In the picture:

[0043] 1. Fiber cotton separation module; 11. Plastic frame; 111. Top ring; 112. Bottom ring; 13. Clamping part; 114. Ribs; 12. Fiber cotton tube; 120. Sewing part;

[0044] 2. Retracting mechanism; 21. Mounting base; 210. Dovetail groove; 22. Retracting block; 220. Dovetail block; 221. First column; 222. Second column; 223. Third column;

[0045] 3. Push out the sleeve;

[0046] 41. First slider; 42. Second slider; 43. Third slider; 44. Fourth slider; 411. First clamping tooth; 421. Second clamping tooth; 400. Arc groove;

[0047] 5. Sprue sleeve;

[0048] 6. Fixed mold core. Implementation

[0049] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.

[0051] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] like Figures 1-2 As shown, the oil-gas separator fiber cotton separation module 1 of this embodiment includes a plastic frame 11 and a fiber cotton tube 12, which are integrally injection molded with the plastic frame 11. The fiber cotton tube 12 is a hollow cylindrical shape and has a sewn section 120. Specifically, the fiber cotton tube 12 is formed by sewing two sheet-like fiber cotton pieces together, with the ends of the two sheet-like fiber cotton pieces sewn together, thus forming two sewn sections 120, or seams, on the outer wall of the fiber cotton tube 12. The plastic frame 11 includes a top ring 111, a bottom ring 112, a clamping part 13, and multiple reinforcing ribs 114. The clamping part 13 and the multiple reinforcing ribs 114 are connected between the top ring 111 and the bottom ring 112 and are arranged circumferentially along the top ring 111 and the bottom ring 112. The sewn section 120 is clamped in the clamping part 13. The sewn portion 120 is clamped by the clamping portion 13 to ensure that the fiber cotton tube 12 does not shift within the plastic frame 11. A gap is provided in the clamping portion 13, within which the sewn portion 120 is positioned, allowing the clamping portion 13 to hold the sewn portion 120 securely. Multiple reinforcing ribs 114 strengthen the fiber cotton tube 12, making it less prone to deformation.

[0055] After the fiber cotton tube 12 and the plastic frame 11 are integrally injection molded, the two seam portions 120 (protruding seams) of the fiber cotton tube 12 are clamped by the clamping portion 13 on the plastic frame 11. The two ends of the fiber cotton tube 12 are limited and supported by the top ring 111 and the bottom ring 112 respectively. During the high-speed rotation, the fiber cotton tube 12 and the plastic frame 11 will not move relative to each other or separate, which can effectively ensure the use effect of the fiber cotton separation module 1.

[0056] like Figures 3-9This diagram illustrates the core structure of the injection mold for the fiber cotton separation module 1 of the oil-gas separator in this embodiment. The injection mold includes an internal shrinkage mechanism 2, an ejector sleeve 3, and multiple sliders. The internal shrinkage mechanism 2 includes a mounting base 21 and multiple internal shrinkage blocks 22 movably mounted on the mounting base 21. These internal shrinkage blocks 22 are tensioned against the inner wall of the fiber cotton cylinder 12. This tension effectively shapes the fiber cotton cylinder 12, maintaining its cylindrical shape. When it is necessary to detach the internal shrinkage blocks 22 from the inner wall of the fiber cotton cylinder 12, the blocks simply move inward relative to the mounting base 21, and the internal shrinkage mechanism 2 no longer tensions the fiber cotton cylinder 12.

[0057] In the actual manufacturing process, the fiber cotton tube 12 is formed by sewing two pieces of fiber cotton together, leaving two seam portions 120 (i.e., raised seams) on the outer wall of the fiber cotton tube 12. When the fiber cotton tube 12, which is shaped into a hollow cylindrical shape, is positioned and fixed in the injection mold, the inner wall of the fiber cotton tube 12 is tensioned by multiple shrinking blocks 22 in the shrinking mechanism 2, so that the inner ring of the fiber cotton tube 12 is fixed while the inner wall of the fiber cotton tube 12 is kept cylindrical.

[0058] Specifically, the mounting base 21 has multiple dovetail grooves 210 along its circumference, and each inner shrink block 22 is provided with a dovetail block 220. The dovetail blocks 220 are movably disposed in the dovetail grooves 210 and can slide along the dovetail grooves 210. The dovetail grooves 210 gradually slope outward from top to bottom. Therefore, relatively speaking, when the inner shrink block 22 is tensioning the fiber cotton tube 12, the inner shrink block 22 is in a lower position on the mounting base 21; when the inner shrink block 22 moves inward and no longer tensions the fiber cotton tube 12, the inner shrink block 22 is in a higher position on the mounting base 21. That is, when the inner shrink block 22 needs to detach from the fiber cotton tube 12, the inner shrink block 22 slides upward along the dovetail grooves 210, while simultaneously moving inward.

[0059] like Figure 7 and Figure 8 As shown, multiple shrinking blocks 22 sequentially form a first column 221, a second column 222, and a third column 223 from bottom to top. The diameter of the first column 221 is larger than the diameter of the second column 222, and the diameter of the second column 222 is larger than the diameter of the third column 223. The fiber cotton tube 12 is tensioned on the first column 221, and the second column 222 supports the fiber cotton tube 12. That is, the multiple shrinking blocks 22 tension and support the fiber cotton tube 12, ensuring that the fiber cotton tube 12 will not shift during the integral injection molding process.

[0060] like Figures 4-6 and Figure 9As shown, multiple sliders are arranged circumferentially along the inner shrinking mechanism 2. At least two sliders clamp the sewn part 120 from the outside of the fiber cotton tube 12, and multiple sliders are movably attached to the outer wall of the fiber cotton tube 12. The ejector sleeve 3 is movably disposed below the fiber cotton tube 12 and the multiple sliders. The ejector sleeve 3 has a pressing step (not shown in the figure). The second column 222 passes through the ejector sleeve 3 and is movably attached to the ejector sleeve 3. The pressing step movably abuts against the first column 221. The ejector sleeve 3 is not only used to eject the formed fiber cotton separation module 1, but also to press the multiple inner shrinking blocks 22. After the inner shrinking blocks 22 are reset, the inner wall of the ejector sleeve 3 is attached to the outer wall of the second column 222, ensuring reliable reset of the inner shrinking blocks 22.

[0061] Specifically, the plurality of sliders includes a first slider 41 and a second slider 42. The first slider 41 has a plurality of first clamping teeth 411 on the side near the second slider 42, and the second slider 42 has a plurality of second clamping teeth 421 on the side near the first slider 41. The plurality of second clamping teeth 421 correspond one-to-one with the plurality of first clamping teeth 411, and there is a gap between the second clamping teeth 421 and the first clamping teeth 411. The sewn portion 120 is clamped in the gap. Furthermore, the plurality of sliders also includes a third slider 43 and a fourth slider 44. The third slider 43 has a plurality of first clamping teeth 411, and the fourth slider 44 has a plurality of second clamping teeth 421. The sewn portion 120, located away from the first slider 41 and the second slider 42, is clamped between the first clamping teeth 411 on the third slider 43 and the second clamping teeth 421 on the fourth slider 44.

[0062] Overall, the third slider 43 is centrally symmetrically arranged with respect to the first slider 41, and the fourth slider 44 is centrally symmetrically arranged with respect to the second slider 42. The first slider 41, the second slider 42, the third slider 43, and the fourth slider 44 move and abut against each other sequentially. Each of the first slider 41, the second slider 42, the third slider 43, and the fourth slider 44 has an arc-shaped groove 400 at its bottom, and the ejector sleeve 3 is movably disposed within these arc-shaped grooves 400. The four arc-shaped grooves 400 of the four sliders form a circular groove, within which the ejector sleeve 3 is positioned. The ejector sleeve 3 can limit the movement of the four sliders, ensuring the accuracy of their reset positions and thus guaranteeing the forming quality of the formed fiber cotton separation module 1.

[0063] Each of the multiple sliders has a soft rubber material at one end near the inward retraction mechanism 2; the soft rubber material on the multiple sliders is in contact with the outer wall of the fiber cotton tube 12. The hardness of the soft rubber material is much lower than that of the slider body, so as to prevent damage to the fiber cotton tube 12 when it comes into rigid contact with the multiple sliders.

[0064] Understandably, each of the multiple sliders is provided with a soft rubber material near one end of the fiber cotton cylinder 12. The hardness of this soft material is less than that of the slider body material. When the slider clamps the outer wall of the fiber cotton cylinder 12, it can prevent damage to the fiber cotton cylinder 12 and prevent overflow of glue during injection molding.

[0065] The first clamping protrusion 411 and the second clamping protrusion 421 both have semi-circular cross-sections, and two symmetrical stitching portions 120 are provided on the fiber cotton tube 12. The semi-circular clamping protrusions clamp the stitching portions 120 on the fiber cotton tube 12, ensuring reliable clamping of the stitching portions 120 while the material of the stitching portions 120 can be squeezed between adjacent protrusions, preventing the material of the stitching portions 120 of the fiber cotton tube 12 from protruding to other places, thus ensuring the forming quality of the fiber cotton separation module 1.

[0066] In the actual manufacturing process, the outer wall of the fiber cotton tube 12 is clamped by multiple sliders. The sliders are in contact with the outer wall of the fiber cotton tube 12, so that the outer wall of the fiber cotton tube 12 is fixed and kept cylindrical. The corresponding sliders are respectively provided with a first clamping protrusion 411 and a second clamping protrusion 421 with a semi-circular cross-section, which clamps the sewing part 120 on the fiber cotton tube 12. This ensures that the fiber cotton tube 12 is clamped and positioned, and that the sewing part 120 does not overflow or deform excessively during injection molding, resulting in high molding quality of the fiber cotton separation module 1.

[0067] like Figure 10 and combination Figures 3-9 As shown, the manufacturing method of the oil-gas separator fiber cotton separation module 1 in this embodiment includes the following steps:

[0068] First, two pieces of sheet-like fiber cotton are sewn together to form the fiber cotton tube 12, forming two seams, namely the sewn part 120, on the fiber cotton tube 12. Then, a shaping tool is used to shape the sewn fiber cotton tube 12 into a hollow cylindrical shape, which facilitates the positioning and fixing of the hollow cylindrical fiber cotton tube 12 into the injection mold.

[0069] The fiber cotton tube 12 is then placed in the injection mold. Specifically, the fiber cotton tube 12 is fitted onto the first column 221 formed by multiple shrinking blocks 22 and supported on the second main body. The inner wall of the fiber cotton tube 12 is in contact with the outer wall of the first column 221. While the multiple shrinking blocks 22 tension the fiber cotton tube 12, they can also correct its shape. The first slider 41, the second slider 42, the third slider 43, and the fourth slider 44 are reset respectively, clamping the outer wall of the fiber cotton tube 12 and adhering it to the fiber cotton tube 12. The corresponding first clamping protrusions 411 and second clamping protrusions 421 on the four sliders clamp the two sewn parts 120. The fiber cotton tube 12 is positioned and fixed by the shrinking mechanism 2 and the four sliders, ensuring the positional accuracy of the fiber cotton tube 12 and ensuring that the fiber cotton tube 12 will not leak glue or undergo large deformation during the injection molding process.

[0070] Then, molten plastic is injected into the injection mold to form the plastic skeleton 11, wherein the plastic skeleton 11 and the fiber cotton tube 12 are injection molded together to form the fiber cotton separation module 1, and the bottom ring 112 is attached to the ejector sleeve 3. Molten plastic is injected from the sprue sleeve 5 of the injection mold and enters the injection mold through the runner.

[0071] Finally, after a preset cooling time, the injection mold opens; the fixed mold (the fixed mold core 6 is part of the fixed mold) and the moving mold separate. Multiple sliders pull outwards, detaching from the fiber cotton separation module 1; multiple internal shrink blocks 22 move inwards relative to the mounting base 21 (moving inwards and upwards simultaneously), detaching from the inner wall of the fiber cotton cylinder 12, while the mounting base 21 remains stationary. The ejector sleeve 3 ejects the fiber cotton separation module 1, ensuring that the fiber cotton separation module 1 is under balanced force, preventing deformation and ensuring the manufacturing quality of the fiber cotton separation module 1.

[0072] In this solution, the manufacturing method produces a high-quality fiber cotton separation module 1 with a simple process and a compact mold structure.

Claims

1. A method for manufacturing a fiber cotton separation module for an oil-gas separator, the fiber cotton separation module comprising a plastic frame and a fiber cotton tube, wherein the fiber cotton tube and the plastic frame are integrally injection molded; wherein, The fiber cotton tube is a hollow cylindrical shape, and the fiber cotton tube is provided with a sewing part; the plastic skeleton includes a top ring, a bottom ring, a clamping part and multiple ribs, the clamping part and multiple ribs are connected between the top ring and the bottom ring, and are arranged along the circumference of the top ring and the bottom ring; the sewing part is clamped in the clamping part; The manufacturing method is characterized by comprising: The sheet-like fiber cotton is sewn into the fiber cotton tube, and the sewn fiber cotton tube is shaped into a hollow cylindrical shape using a shaping tool. The fiber cotton tube is placed in an injection mold; wherein the injection mold includes an internal shrinking mechanism, an ejector sleeve, and multiple sliders; the internal shrinking mechanism includes a mounting base and multiple shrinking blocks movably mounted on the mounting base, the multiple shrinking blocks being tensioned on the inner wall of the fiber cotton tube; the multiple sliders are arranged circumferentially along the internal shrinking mechanism, at least two of the sliders clamping the sewn part from the outside of the fiber cotton tube, and the multiple sliders are movably in contact with the outer wall of the fiber cotton tube; the ejector sleeve is movably disposed below the fiber cotton tube and the multiple sliders; Molten plastic is injected into the injection mold to form the plastic skeleton, wherein the plastic skeleton and the fiber cotton tube are injection molded together to form the fiber cotton separation module, and the bottom ring is attached to the ejector sleeve; After a preset cooling time, the injection mold opens; wherein, multiple sliders pull outwards and detach from the fiber cotton separation module; multiple internal shrink blocks move inwards relative to the mounting base and detach from the inner wall of the fiber cotton cylinder; the ejector sleeve ejects the fiber cotton separation module.

2. The manufacturing method of the oil-gas separator fiber cotton separation module according to claim 1, characterized in that, The plurality of sliders include a first slider and a second slider. The first slider is provided with a plurality of first clamping protrusions on the side near the second slider, and the second slider is provided with a plurality of second clamping protrusions on the side near the first slider. The plurality of second clamping protrusions correspond one-to-one with the plurality of first clamping protrusions, and there is a gap between the second clamping protrusions and the first clamping protrusions. The suture is held in the gap.

3. The manufacturing method of the oil-gas separator fiber cotton separation module according to claim 2, characterized in that, The cross-sections of both the first clamping protrusion and the second clamping protrusion are semi-circular.

4. The manufacturing method of the oil-gas separator fiber cotton separation module according to claim 2 or 3, characterized in that, The fiber cotton tube is symmetrically provided with two sewing sections; The plurality of sliders further includes a third slider and a fourth slider, wherein the third slider is provided with a plurality of first clamping protrusions and the fourth slider is provided with a plurality of second clamping protrusions; The stitched portion, away from the first and second sliders, is clamped between the first clamping tooth on the third slider and the second clamping tooth on the fourth slider.

5. The manufacturing method of the oil-gas separator fiber cotton separation module according to claim 4, characterized in that, The third slider is centrally symmetrical to the first slider, and the fourth slider is centrally symmetrical to the second slider; The first slider, the second slider, the third slider, and the fourth slider move in sequence to counteract each other.

6. The manufacturing method of the oil-gas separator fiber cotton separation module according to claim 1, characterized in that, Each of the multiple sliders has a soft rubber material at one end near the inward retraction mechanism; the soft rubber material on the multiple sliders is attached to the outer wall of the fiber cotton tube.

7. The manufacturing method of the fiber cotton separation module of the oil-gas separator according to claim 1, characterized in that, The mounting base has multiple dovetail grooves along its circumference, and each of the inner recessed blocks is provided with a dovetail block, which is movably disposed in the dovetail groove. The dovetail groove gradually slopes outward from top to bottom.

8. The method for manufacturing the fiber cotton separation module of the oil-gas separator according to claim 1 or 7, characterized in that, The plurality of the indented blocks are arranged from bottom to top to form a first column, a second column and a third column, wherein the diameter of the first column is greater than the diameter of the second column, and the diameter of the second column is greater than the diameter of the third column; The fiber cotton tube is tensioned on the first column, and the second column supports the fiber cotton tube.

9. The method for manufacturing the fiber cotton separation module of the oil-gas separator according to claim 8, characterized in that, The ejector sleeve is provided with a clamping step; The second column is inserted into the ejector sleeve and is in movable contact with the ejector sleeve, while the pressing step is movably abutted against the first column.

10. The method for manufacturing the fiber cotton separation module of the oil-gas separator according to claim 4, characterized in that, The bottom of the first slider, the second slider, the third slider, and the fourth slider are all provided with an arc-shaped groove; The ejector sleeve is movably disposed in one of the multiple arc-shaped grooves.