A method for iterative correction of the geometry of a spiral-wound core mold

Abstract

The present application belongs to the technical field of fiber winding, and particularly relates to a core mold geometric size iterative correction method based on spiral winding. i the actual diameter of the fiber winding on the core mold cylinder, the design thickness and the designed number of layers of the total number of fiber winding layers, the radius of the core mold cylinder body, the rotation speed of the core mold cylinder and the angle of fiber spiral winding; the actual diameter deviation of the fiber winding on the core mold cylinder is determined i the average diameter of the current fiber winding layer on the core mold cylinder and the average size deviation of the current fiber winding layer number on the core mold cylinder; the actual diameter correction coefficient of the fiber winding on the core mold cylinder is determined i the actual diameter correction coefficient of the fiber winding on the core mold cylinder is determined i the moving speed of the fiber winding end on the core mold cylinder is corrected; and the process is iterated to the set winding layer number, so that a core mold product is processed. The present method can dynamically adjust the geometric diameter of the core mold, significantly improve the diameter precision and ensure that the final product meets the design requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of filament winding, and in particular relates to a method for iteratively correcting the geometric dimensions of a core mold based on spiral winding. Background Art

[0002] Filament winding is a processing technique that uniformly and continuously coats the surface of a core mold with a resin-impregnated fiber material. Filament winding is a commonly used process for molding resin-based composite products. This method fully utilizes the high tensile strength of fibers and is used to manufacture products that withstand internal and external pressure, bending, torsion, and axial loads. Filament-wound products are widely used due to their high specific strength, corrosion resistance, low cost, and consistent quality. Furthermore, they are easily mechanized and automated, resulting in high production efficiency. Filament winding technology is widely used in the manufacture of composite products such as pressure vessels, pipelines, and rocket engine casings.

[0003] In the filament winding process, the doffing trajectory is designed based on the geometric diameter of the core mold. However, during the actual processing, the geometric diameter of the core mold changes due to the superposition of winding layers. If processing continues according to the original doffing trajectory, the deviation of the doffing point will become increasingly larger, and the geometric shape and mechanical properties of the processed product will inevitably deviate from the expected geometric shape and mechanical properties, resulting in a product that does not meet the requirements. Therefore, it is very important to correct the geometric diameter of the core mold during the filament winding process. There are two main existing solutions: one is to repair the core mold of the filament wound engine case. This method uses materials such as rubber and gypsum for repair, which may not be able to fully simulate the physical and chemical properties of the core mold material, such as thermal stability and mechanical strength. This may cause further damage or degradation of the repaired area during subsequent use. At the same time, the repair effect may be affected by many factors, such as the quality of the repair material, the technical level of the operator, the environmental conditions during the repair process, etc., which makes the repair effect have a certain degree of uncertainty. Moreover, this method includes multiple steps such as grinding, filling, heating, pressurization and trimming, which increases the complexity of the operation and the accuracy of the correction of the yarn drop trajectory cannot be guaranteed; another method proposes a series of generalized core mold contour extrapolation algorithms. This method has a high algorithm complexity. In actual production, the winding process requires rapid response and real-time adjustment. High-complexity algorithms may be difficult to meet real-time requirements, especially when the path planning needs to be updated frequently. The real-time performance is insufficient and it is difficult to guarantee the accuracy of the correction. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide an iterative correction method for the geometric dimensions of a core mold based on spiral winding, which can dynamically adjust the geometric diameter of the core mold, significantly improve the diameter accuracy, and ensure that the final product meets the design requirements.

[0005] The technical scheme of the present application is:

[0006] A spiral winding-based core mold geometric size iterative correction method, comprising the following steps:

[0007] S1, obtaining the actual diameter of the fiber winding on the first i layer of the core mold cylinder , the designed thickness of the total number of fiber winding layers H , the radius of the core mold cylinder body R 0 , the designed number of fiber winding layers on the core mold cylinder n、 , the rotation speed of the core mold cylinder , and the angle of fiber spiral winding ;

[0008] S2, based on the current number of fiber winding layers i , the designed number of fiber winding layers on the core mold cylinder n , and the designed thickness of the total number of fiber winding layers H , determine the thickness of the fiber winding on the core mold cylinder to the first i layer H i ; based on the radius of the core mold cylinder body R 0 and the thickness of the fiber winding on the core mold cylinder to the first i layer H i determine the designed diameter of the fiber winding on the first i layer of the core mold cylinder ; based on the designed diameter of the fiber winding on the first i layer of the core mold cylinder and the actual diameter of the fiber winding on the first i layer of the core mold cylinder , determine the actual diameter deviation of the fiber winding on the first i layer of the core mold cylinder ; based on the current winding layer number on the core mold cylinder i and the actual diameter of the fiber winding on the first i layer of the core mold cylinder , determine the average diameter of the current fiber winding layer on the core mold cylinder ; based on the current winding layer number on the core mold cylinder i和 the actual diameter deviation of the fiber winding on the first i layer of the core mold cylinder , determine the average size deviation of the current fiber winding layer number on the core mold cylinder ;

[0009] S3, according to the current number of fiber winding layers, the actual diameter of the fiber winding on the first i layer of the core mold cylinder , the average diameter of the current fiber winding layer on the core mold 、The first on the core mold i Actual diameter deviation of layer fiber winding and the average dimensional deviation of the current number of fiber winding layers on the core mold barrel , determine the first i Correction factor for actual diameter of layer fiber winding ;

[0010] S4, based on the core mold cylinder i Correction factor for actual diameter of layer fiber winding 、On the core mold tube i Actual diameter of the layer fiber winding , the rotation speed of the core mold and fiber winding angle , determine the first i +1 layer of fiber winding end movement speed , based on the core mold cylinder i +1 layer of fiber winding end movement speed Complete the i +1 layer of fiber winding;

[0011] S5. After each layer is wound, return to step S1 until the preset number of winding layers is reached.

[0012] Preferably, the fibers on the core mold are wound to the i Layer thickness H i , determined according to the following formula:

[0013] ,

[0014] in, ,

[0015] Where, Wind the fiber on the core mold to the first thickness of the layer; is the number of layers of fiber currently wrapped around the core mold cylinder, is the designed thickness of the fiber winding layer on the core mold cylinder; is the designed number of layers of fiber winding on the core mold cylinder, Thickness of a single layer of filament winding.

[0016] Preferably, the first i Design diameter of layer fiber winding , determined according to the following formula:

[0017] D i设计 =2( R0 +H i ),

[0018] Where, R 0 is the radius of the core mold barrel; H i For the core mold cylinder i The thickness of the fiber winding layer.

[0019] Preferably, the first i Actual diameter deviation of layer fiber winding , determined according to the following formula:

[0020] ,

[0021] Where, For the core mold cylinder i The actual diameter of the layer fiber winding; For the core mold cylinder i Design diameter for layer fiber winding.

[0022] Preferably, the first i Correction factor for actual diameter of layer fiber winding , determined according to the following formula:

[0023] ,

[0024] in, = ,

[0025] ,

[0026] Where, For the core mold cylinder i Correction factor for actual diameter of layer fiber winding; For the core mold cylinder i The actual diameter of the layer fiber winding; is the average diameter of the current fiber winding layer on the core mold cylinder; For the core mold cylinder i Deviation of actual diameter of layer fiber winding; Average dimensional deviation of the current number of filament winding layers on the core barrel.

[0027] Preferably, the first i The moving speed of the +1 layer fiber winding end is determined according to the following formula:

[0028] ,

[0029] in, Ri+1 = (1+ R i实际 ),

[0030] R i实际 = ,

[0031] Where, For the core mold cylinder i +1 layer of fiber winding end movement speed; is the rotation speed of the core mold cylinder; R i+1 For the core mold cylinder i +1 layer of modified radius for fiber winding, R i实际 For the core mold cylinder i Actual radius of layer fiber winding; For the core mold cylinder i The actual diameter of the layer fiber winding; is the angle of the fiber spiral winding.

[0032] Preferably, the method further includes step S6, verifying the effectiveness of the finished core mold, including the following steps:

[0033] Get the actual diameter of the finished core mold D 实际 , Design diameter of the finished core mold D 设计 Design deviation from the core mold product △ D ,△ D ∈(-0.2, 0.2);

[0034] Based on the actual diameter of the finished core mold D 实际 And the design diameter of the core mold finished product D 设计 Determine the total diameter deviation of the core mold product △ D 实际 ;

[0035] Total diameter deviation of the core mold finished product △ D 实际 Design deviation from the core mold finished product △ D Compare and verify the effectiveness. When the total diameter deviation of the core mold finished product is △ D 实际 Design deviation of the finished product falling into the core mold △ D Within the range of , the core mold finished product is recorded as valid, and the various process parameters of the core mold finished product are obtained as standard process parameters; when the total diameter deviation of the core mold finished product △ D实际 Exceeding the design deviation of the core mold product△ D The core mold finished product is invalid. D 实际 Apply the total correction factor to obtain the corrected diameter of the finished core mold , based on the corrected diameter of the finished core mold And the design diameter of the core mold finished product D 设计 , adjust the initial moving speed of the fiber winding end v 0 and the initial rotation speed of the core mold cylinder oh 0, return to step S1 to reprocess a core mold product.

[0036] Preferably, the initial moving speed of the fiber winding end is v 0 and the initial rotation speed of the core mold cylinder oh The adjustment method for 0 is as follows:

[0037] Keep the winding angle of the fiber spiral winding unchanged, and determine the difference between the design diameter and the corrected diameter of the core mold product K :

[0038] K=D 修正 / D 设计 ,

[0039] in D 修正 = k D (1+ D 实际 ), 0.2≤ k D ≤0.7;

[0040] K >1: The actual diameter of the finished core mold is larger than the designed diameter of the finished core mold;

[0041] K <1: The actual diameter of the finished core mold is smaller than the designed diameter of the finished core mold;

[0042] Adjustment mechanism 1:

[0043] Fix the core mold cylinder rotation speed and adjust the initial moving speed of the fiber winding end according to the following formula :

[0044] ,

[0045] Where, is the initial moving speed of the fiber winding end during the processing of the previous core mold finished product;

[0046] Adjustment mechanism 2:

[0047] Fix the moving speed of the fiber winding end and adjust the initial rotation speed of the core mold cylinder according to the following formula oh 0:

[0048] oh 0= oh 1 / K ,

[0049] Where, oh 1 is the initial rotation speed of the core mold cylinder when the previous core mold finished product is processed.

[0050] Compared with the prior art, the iterative correction method of the core mold geometric dimensions based on spiral winding of the present invention has the following beneficial effects:

[0051] 1) Through the iterative correction method, the geometric diameter of the core mold can be dynamically adjusted, significantly improving the diameter accuracy and ensuring that the final product meets the design requirements.

[0052] 2) Through the iterative correction method, the use of repair materials is reduced and the material cost is reduced. At the same time, the simplified process flow improves production efficiency, shortens the processing cycle, and thus reduces the overall production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 4 is a flow chart of a method in an embodiment of the present invention.

[0054] Figure 2 Schematic diagram of fiber winding on a core mold in an embodiment of the present invention.

[0055] Figure 3 Schematic diagram of the structure of the core mold in an embodiment of the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0057] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0058] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] See also Figure 1 to Figure 3 As shown, in order to dynamically adjust the geometric diameter of the core mold, improve the diameter accuracy, and ensure that the final product meets the design requirements, this embodiment provides an iterative correction method for the geometric dimensions of the core mold based on spiral winding, including the following steps:

[0060] S1. Get the first i Actual diameter of the layer fiber winding , Design thickness of total number of fiber winding layers H , the radius of the core mold barrel R 0 , the number of designed layers of fiber winding on the core mold n、 Rotation speed of core mold cylinder and the angle of fiber spiral winding ;

[0061] S2, based on the current number of fiber winding layers i , the number of designed layers of fiber winding on the core mold n and the design thickness of the total number of filament winding layers H Make sure the fiber on the core mold is wound to the i Layer thickness H i ; Based on the radius of the core mold barrel R 0 The fiber on the core mold is wound to the first i Layer thickness H i Determine the first i Design diameter of layer fiber winding Based on the core mold tube i Design diameter of layer fiber winding and the core mold cylinder i Actual diameter of the layer fiber winding Determine the first i Actual diameter deviation of layer fiber winding ; Based on the current number of winding layers on the core mold i and the core mold cylinder i Actual diameter of the layer fiber winding Determine the average diameter of the current fiber winding layer on the mandrel ; Based on the current number of winding layers on the core mold i和 The first i Actual diameter deviation of layer fiber winding Determine the average dimensional deviation of the current number of fiber winding layers on the core mold barrel ;

[0062] S3, according to the current fiber winding layer number, the core mold cylinder i Actual diameter of the layer fiber winding , the average diameter of the current fiber winding layer on the core mold 、The first on the core mold i Actual diameter deviation of layer fiber winding and the average dimensional deviation of the current number of fiber winding layers on the core mold barrel , determine the first i Correction factor for actual diameter of layer fiber winding ;

[0063] S4, based on the core mold cylinder i Correction factor for actual diameter of layer fiber winding 、On the core mold tube i Actual diameter of the layer fiber winding , the rotation speed of the core mold and fiber winding angle , determine the first i +1 layer of fiber winding end movement speed , based on the core mold cylinder i +1 layer of fiber winding end movement speed Complete the i +1 layer of fiber winding;

[0064] S5. After each layer is wound, the process returns to step S1 until the preset number of winding layers is reached, and a core mold product is processed.

[0065] Among them, the fiber on the core mold is wound to the first i Layer thickness H i , determined according to the following formula:

[0066] ,

[0067] in, ,

[0068] Where, Wind the fiber on the core mold to the first thickness of the layer; is the number of layers of fiber currently wrapped around the core mold cylinder, is the designed thickness of the fiber winding layer on the core mold cylinder; is the designed number of layers of fiber winding on the core mold cylinder, Thickness of a single layer of filament winding.

[0069] The first i Design diameter of layer fiber winding , determined according to the following formula:

[0070] D i设计 =2(R 0 +H i ),

[0071] Where, R 0 is the radius of the core mold barrel; H i For the core mold cylinder i The thickness of the fiber winding layer.

[0072] The first i Actual diameter deviation of layer fiber winding , determined according to the following formula:

[0073]

[0074] Where, For the core mold cylinder i The actual diameter of the layer fiber winding; For the core mold cylinder i Design diameter for layer fiber winding.

[0075] For the core mold cylinder i The actual diameter correction factor of the layer fiber winding is determined according to the following formula:

[0076] = ,

[0077] in, = ,

[0078] ,

[0079] Where, For the core mold cylinder i The actual diameter of the layer fiber winding; is the average diameter of the current fiber winding layer on the core mold cylinder; For the core mold cylinder i Deviation of actual diameter of layer fiber winding; Average dimensional deviation of the current number of filament winding layers on the core barrel.

[0080] The first i The moving speed of the +1 layer fiber winding end is determined according to the following formula:

[0081] ,

[0082] in, R i+1 = (1+ R i实际 ),

[0083] R i实际 = ,

[0084] Where, For the core mold cylinder i +1 layer of fiber winding end movement speed; R i+1 For the core mold cylinder i +1 layer of modified radius for fiber winding, R i实际 For the core mold cylinder i Actual radius of layer fiber winding; For the core mold cylinder i The actual diameter of the layer fiber winding; is the lead of the helical winding of the fibers, ; , The winding angle of the fiber spirally wound on the core mold cylinder; d 1 is the diameter of the left hole of the core mold; d 2 is the diameter of the right hole of the core mold cylinder; D is the outer diameter of the core mold barrel section, is the rotation speed of the core mold cylinder.

[0085] In order to obtain more accurate process parameters, after processing a finished product, it is necessary to further verify the core mold product. The verification method includes the following steps:

[0086] Get the actual diameter of the finished core mold D 实际 , Design diameter of the finished core mold D 设计 Design deviation from the core mold product △ D ,△ D ∈(-0.2, 0.2);

[0087] Based on the actual diameter of the finished core mold D 实际 And the design diameter of the core mold finished product D 设计 Determine the total diameter deviation of the core mold product △ D 实际 ;

[0088] Total diameter deviation of the core mold finished product △ D 实际 Design deviation from the core mold finished product △ D Compare and verify the effectiveness. When the total diameter deviation of the core mold finished product is △D 实际 Design deviation of the core mold product D Within the range of the design deviation of the core mold product, the core mold product is recorded as valid, and each process parameter of the core mold product is obtained as a standard process parameter; when the total deviation of the diameter of the core mold product D 实际 Design deviation of the core mold product D , the core mold product is recorded as invalid, and the actual diameter of the core mold product D 实际 A total correction coefficient is applied to obtain a corrected diameter of the core mold product , based on the corrected diameter of the core mold product and the design diameter of the core mold product D 设计 Adjust the initial moving speed of the fiber winding end v 0 and the initial rotating speed of the core mold cylinder oh 0, return to step S1 to reprocess a core mold product.

[0089] The adjustment method of the initial moving speed of the fiber winding end v 0 and the initial rotating speed of the core mold cylinder oh 0 is as follows:

[0090] Keep the winding angle of the fiber spiral winding unchanged, and determine the difference value K :

[0091] K=D 修正 / D 设计 ,

[0092] Wherein D 修正 = k D (1+ D 实际 ), 0.2≤ k D ≤0.7;

[0093] K > 1: the actual diameter of the core mold product is larger than the design diameter of the core mold product;

[0094] K < 1: the actual diameter of the core mold product is smaller than the design diameter of the core mold product;

[0095] Adjustment mechanism 1:

[0096] Fix the rotating speed of the core mold cylinder, and adjust the initial moving speed of the fiber winding end according to the following formula: :

[0097] ,

[0098] Where, is the initial moving speed of the fiber winding end during the processing of the previous core mold finished product;

[0099] Adjustment mechanism 2:

[0100] Fix the moving speed of the fiber winding end and adjust the initial rotation speed of the core mold cylinder according to the following formula oh 0:

[0101] oh 0= oh 1 / K ,

[0102] Where, oh 1 is the initial rotation speed of the core mold cylinder when the previous core mold finished product is processed.

[0103] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for iterative correction of core mold geometric dimensions based on spiral winding, characterized in that: The following steps are involved: S1. Get the first i Actual diameter of the layer fiber winding , Design thickness of total number of fiber winding layers H , the radius of the core mold barrel R 0 , the number of designed layers of fiber winding on the core mold n、 Rotation speed of core mold cylinder and the angle of fiber spiral winding ; S2, based on the current number of fiber winding layers i , the number of designed layers of fiber winding on the core mold n and the design thickness of the total number of filament winding layers H Make sure the fiber on the core mold is wound to the i Layer thickness H i ; Based on the radius of the core mold barrel R 0 The fiber on the core mold is wound to the first i Layer thickness H i Determine the first i Design diameter of layer fiber winding ; Based on the core mold cylinder i Design diameter of layer fiber winding and the core mold cylinder i Actual diameter of the layer fiber winding Determine the first i Actual diameter deviation of layer fiber winding ; Based on the current number of winding layers on the core mold i and the core mold cylinder i Actual diameter of the layer fiber winding Determine the average diameter of the current fiber winding layer on the mandrel ; Based on the current number of winding layers on the core mold i and The first i Actual diameter deviation of layer fiber winding Determine the average dimensional deviation of the current number of fiber winding layers on the core mold barrel ; S3, according to the current fiber winding layer number, the core mold cylinder i Actual diameter of the layer fiber winding , the average diameter of the current fiber winding layer on the core mold 、The first on the core mold i Actual diameter deviation of layer fiber winding and the average dimensional deviation of the current number of fiber winding layers on the core mold barrel , determine the first i Correction factor for actual diameter of layer fiber winding ; S4, based on the core mold cylinder i Correction factor for actual diameter of layer fiber winding 、On the core mold tube i Actual diameter of the layer fiber winding , the rotation speed of the core mold and fiber winding angle , determine the first i +1 layer of fiber winding end movement speed , based on the core mold cylinder i +1 layer of fiber winding end movement speed Complete the i +1 layer of fiber winding; S5. After each layer is wound, return to step S1 until the preset number of winding layers is reached.

2. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 1, characterized in that: The fiber on the core mold is wound to the i Layer thickness H i , determined according to the following formula: ， in, , Where, Wind the fiber on the core mold to the first thickness of the layer; is the number of layers of fiber currently wrapped around the core mold cylinder, is the designed thickness of the fiber winding layer on the core mold cylinder; is the designed number of layers of fiber winding on the core mold cylinder, Thickness of a single layer of filament winding.

3. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 2, characterized in that: The first i Design diameter of layer fiber winding , determined according to the following formula: D i设计 =2（ R 0 +H i ）， Where, R 0 is the radius of the core mold barrel; H i For the core mold cylinder i The thickness of the fiber winding layer.

4. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 3, characterized in that: The first i Actual diameter deviation of layer fiber winding , determined according to the following formula: ， Where, For the core mold cylinder i The actual diameter of the layer fiber winding; For the core mold cylinder i Design diameter for layer fiber winding.

5. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 4, characterized in that: The first i Correction factor for actual diameter of layer fiber winding , determined according to the following formula: = ， in, = , ， Where, For the core mold cylinder i Correction factor for actual diameter of layer fiber winding; For the core mold cylinder i The actual diameter of the layer fiber winding; is the average diameter of the current fiber winding layer on the core mold cylinder; For the core mold cylinder i Deviation of actual diameter of layer fiber winding; Average dimensional deviation of the current number of filament winding layers on the core barrel.

6. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 5, characterized in that: The first i The moving speed of the +1 layer fiber winding end is determined according to the following formula: ， in, R i+1 = (1+ R i实际 ), R i实际 = ， Where, For the core mold cylinder i +1 layer of fiber winding end movement speed; is the rotation speed of the core mold cylinder; R i+1 For the core mold cylinder i +1 layer of modified radius for fiber winding, R i实际 For the core mold cylinder i Actual radius of layer fiber winding; For the core mold cylinder i The actual diameter of the layer fiber winding; is the angle of the fiber spiral winding.

7. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 1, characterized in that: The process also includes step S6, which is validation of the finished core mold, comprising the following steps: Get the actual diameter of the finished core mold D 实际 , Design diameter of the finished core mold D 设计 Design deviation from the core mold product △ D ,△ D ∈(-0.2, 0.2); Based on the actual diameter of the finished core mold D 实际 And the design diameter of the core mold finished product D 设计 Determine the total diameter deviation of the core mold product △ D 实际 ; Total diameter deviation of the core mold finished product △ D 实际 Design deviation from the core mold finished product △ D Compare and verify the effectiveness. When the total diameter deviation of the core mold finished product is △ D 实际 Design deviation of the finished product falling into the core mold △ D Within the range of , the core mold finished product is recorded as valid, and the various process parameters of the core mold finished product are obtained as standard process parameters; when the total diameter deviation of the core mold finished product △ D 实际 Exceeding the design deviation of the core mold product△ D The core mold finished product is invalid. D 实际 Apply the total correction factor to obtain the corrected diameter of the finished core mold , based on the corrected diameter of the finished core mold And the design diameter of the core mold finished product D 设计 , adjust the initial moving speed of the fiber winding end v 0 and the initial rotation speed of the core mold cylinder ω 0, return to step S1 to reprocess a core mold product.

8. The method for iteratively correcting the core mold geometry based on spiral winding according to claim 7, characterized in that: Initial moving speed of the fiber winding end v 0 and the initial rotation speed of the core mold cylinder ω The adjustment method for 0 is as follows: Keep the winding angle of the fiber spiral winding unchanged, and determine the difference between the design diameter and the corrected diameter of the core mold product K : K=D 修正 / D 设计 ， in D 修正 = k D (1+ D 实际 ), 0.2≤ k D ≤0.7; K >1: The actual diameter of the finished core mold is larger than the designed diameter of the finished core mold; K <1: The actual diameter of the finished core mold is smaller than the designed diameter of the finished core mold; Adjustment mechanism 1: Fix the core mold cylinder rotation speed and adjust the initial moving speed of the fiber winding end according to the following formula : ， Where, is the initial moving speed of the fiber winding end during the processing of the previous core mold finished product; Adjustment mechanism 2: Fix the moving speed of the fiber winding end and adjust the initial rotation speed of the core mold cylinder according to the following formula ω 0: ω 0= ω 1 / K ， Where, ω 1 is the initial rotation speed of the core mold cylinder when the previous core mold finished product is processed.

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