Method for controlling the feeding of slivers in an artificial fur machine

By constructing a model of the wool sliver feeding path length and a tension model, and optimizing the parameters of the feeding device, the problems of wool sliver feeding accuracy and consistency in traditional artificial fur weaving equipment were solved, and high-quality fur products were produced.

CN120006437BActive Publication Date: 2025-11-18WUXI AIKE PLUSH TECH CO LTD +1
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Patent Information

Application Number
CN202510017168.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-11-18
Estimated Expiration
2045-01-06

AI Technical Summary

Technical Problem

Traditional artificial fur weaving equipment relies on experience or simple linear speed control for sliver feeding, which makes it difficult to cope with complex weaving processes. This results in difficulty in ensuring the accuracy and consistency of sliver feeding, affecting the quality of the fabric.

Method used

By constructing a model of the wool sliver feeding path length, introducing an influence coefficient to compensate for the influencing factors in the feeding and weaving stages, optimizing the parameters of the feeding device, establishing the target correspondence between the wool sliver feeding length and the fabric process parameters, adjusting the speed of the feeding device and the speed of the loom cylinder, and constructing a wool sliver feeding tension model, the precise control of the wool sliver feeding length can be achieved.

Benefits of technology

It improves the accuracy and consistency of the sliver feeding length, ensures the uniformity and quality of the fabric surface, and enhances production efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a sliver feeding control method of a fur making machine, and belongs to the technical field of knitted product weaving, which comprises forming an accurate description of the feeding path length of the sliver, introducing an influence coefficient to compensate for the resistance such as damage, stretching and friction suffered by the sliver during feeding and knitting, constructing a relationship model of the feeding length of the sliver of the fur making machine and the corresponding process parameters of the grey cloth and a relationship model between the rotating speed of the feeding device of the sliver of the fur making machine and the rotating speed of the needle cylinder of the loom according to the feeding path length of the sliver, and taking the relationship model as the basis for parameter adjustment in the sliver feeding stage, so as to effectively improve the prediction and control ability of the sliver feeding effect. Compared with the traditional mode of relying on experience and simple linear speed control, the sliver feeding effect control method of the application combines theoretical calculation with actual measurement, can keep the accuracy and stability of the sliver feeding length under different equipment and different batch production conditions, and realizes the comprehensive improvement of the quality and production efficiency of the fur product.
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Description

Technical Field

[0001] This invention relates to a method for controlling the feeding of wool tops in an artificial fur machine, belonging to the field of knitted product weaving technology. Background Technology

[0002] In artificial fur weaving technology, controlling the feeding length of the artificial fur sliver is one of the key steps in producing high-quality artificial fur fabric. However, traditional artificial fur weaving equipment typically relies on experience or simple linear speed control to control the sliver feeding. While this control method can achieve a certain level of feeding accuracy in some cases, its over-reliance on operator experience or a single speed parameter often makes it difficult to handle the complex variables and precision requirements of the weaving process.

[0003] Specifically, traditional loom equipment has a relatively complex structure, typically involving the coordinated movement of multiple sets of feed rollers and cylinders. Various process parameters of the loom, such as rotational speed, needle count, cylinder diameter, and needle pitch, all affect the insertion, stress, friction, drafting, and recovery of the wool sliver. These factors interact, making it difficult to guarantee the feeding accuracy and consistency of the wool sliver during weaving. For example, friction, pulling, or excessive compression of the wool sliver during transport can affect its length and tension, thus impacting the quality of the final fabric.

[0004] Currently, although some technical means have attempted to solve this problem, such as the wool sliver length measuring device disclosed in patent document CN108413912B, which detects the movement of the wool sliver using a meter counter to achieve basic measurement of the wool sliver length, this device fails to fully consider the mechanical effects that the wool sliver may experience during transmission, such as compression, friction, and pulling. Therefore, in actual operation, it is difficult to effectively control the feeding length of the artificial wool sliver. This technology cannot precisely adjust for the multiple physical factors in the complex weaving process, thus affecting the accuracy and consistency of the wool sliver feeding length, impacting the wool sliver feeding effect, and consequently affecting the fabric finish, failing to meet the requirements of high-quality production. Summary of the Invention

[0005] To address the above problems, this invention provides a method for controlling the feeding of fur strips in an artificial fur machine, the technical solution of which is as follows:

[0006] As one aspect of the present invention, a method for controlling the feeding of slivers in an artificial fur machine is provided, comprising:

[0007] S100, The circumferential angle and radius of the sliver holding part of the feeding roller in the feeding device of the artificial fur machine, and the circumferential angle and radius of the sliver holding part of the cylinder form a description of the feeding path length of the sliver before entering the loom.

[0008] S200. Based on the feeding path length of the wool strip, the length of the wool strip to be fed, and the process parameters of the fabric after it comes off the machine, construct an initial correspondence model between the wool strip feeding length of the artificial fur machine and the process parameters of the fabric.

[0009] S300, Introducing the influence coefficient k of the wool strip feeding stage i Influence coefficient k of the wool top weaving stage j To compensate for the reduction in the feed length of the wool sliver caused by the influencing factors in the feeding and weaving stages, the initial correspondence model between the wool sliver feeding device parameters of the artificial fur machine and the process parameters of the greige fabric is optimized. The target correspondence model between the wool sliver feeding length of the artificial fur machine and the process parameters of the greige fabric is obtained. Furthermore, a relationship model between the rotation speed of the wool sliver feeding device of the artificial fur machine and the cylinder rotation speed of the loom is constructed. The influencing factors include damage, stretching, friction, recycling, and shrinkage.

[0010] S400. Decompose the fabric process parameters of the artificial fur fabric sample after it comes off the machine, and obtain the manufacturing process parameters of the artificial fur machine related to the feed length of the wool strip, including the speed of the loom, the number of needles, the cylinder diameter, the needle pitch, the diameter of the wool feeding roller inside the artificial fur machine, the speed of the wool feeding roller, the arrangement of the wool feeding roller, the diameter of the cylinder, the speed of the cylinder, and the arrangement of the cylinder.

[0011] S500. In the sliver feeding stage of the formal production process, based on the obtained artificial fur fabric sample after it comes off the machine, adjust one or more of the following: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the sliver holding part of the feeding roller, and the circumferential angle of the sliver holding part of the cylinder. This will ensure that the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the fabric, and the relationship model between the rotation speed of the sliver feeding device of the artificial fur machine and the cylinder rotation speed of the loom are established.

[0012] Furthermore, the feeding device of the artificial fur machine includes a first feeding roller, a second feeding roller, a first cylinder, a second cylinder, and a third cylinder; the weaving device of the artificial fur machine includes a loom; the first feeding roller and the second feeding roller are placed tangentially to each other from left to right; the first cylinder, the second cylinder, and the third cylinder are arranged in a triangular arrangement tangentially to each other; the first cylinder is also tangential to the first feeding roller and the second feeding roller; the second feeding roller, the first cylinder, and the third cylinder all have a sliver holding part;

[0013] The expression for the feed path length is:

[0014] L1=∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180

[0015] When r1 = r2, cos∠1 = (r2 + R1) / r2

[0016] Wherein, ∠1 represents the circumferential angle of the sliver holding part of the second feed roller, ∠2 represents the circumferential angle of the sliver holding part of the first cylinder, ∠3 represents the circumferential angle of the sliver holding part of the third cylinder, r1 represents the radius of the first feed roller, r2 represents the radius of the second feed roller, R1 represents the radius of the first cylinder, and R3 represents the radius of the third cylinder.

[0017] Furthermore, the expression for the initial correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the greige fabric is as follows:

[0018] L3 + L1 = L2·m

[0019] L2 = l / n

[0020] L3+∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180=l·m / n

[0021] Where L3 represents the length of the remaining yarn outside the feeding device after removing the yarn inside the feeding device, m represents the total number of needles in the cylinder diameter of the artificial fur loom, L2 represents the unit yarn length of the greige fabric after the fur fabric comes off the machine, l represents the yarn length contained in a single row of loops within a unit length of the greige fabric, and n represents the number of loops contained in a single row within a unit length of the greige fabric.

[0022] Furthermore, the expression for the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the greige fabric is as follows:

[0023] k i ·(L3+L1)=k j ·(l·m / n)

[0024] k i ·(L3+∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180)=k j ·(l·m / n)

[0025] Where, k i k represents the influence coefficient during the sliver feeding stage. j This represents the influence coefficient of the wool strip weaving stage.

[0026] Furthermore, the expression for the relationship between the rotational speed of the feeding device of the artificial fur machine and the rotational speed of the knitting cylinder is as follows:

[0027] L3 + L1 = V0·t

[0028] m·T / t=2R4·π / t=V1

[0029] m=V1·t / T

[0030] k i ·V0·t=k j ·l·V1·t / T·n

[0031] Where V0 represents the rotational speed of the feeding device, V1 represents the rotational speed of the knitting cylinder of the loom, t represents the time required for the artificial fur machine to weave one revolution, T represents the needle pitch within the cylinder diameter of the knitting cylinder of the loom, and R4 represents the cylinder diameter of the knitting cylinder of the loom.

[0032] Furthermore, step S300 also includes: constructing a model of the sliver feeding tension relationship between the feed roller, cylinder, and knitting needle cylinder of the loom;

[0033] Step S500 is as follows: In the sliver feeding stage of the formal production process, based on the obtained process parameters of the greige fabric after the artificial fur machine sample comes off the machine, adjust one or more of the following in the feeding device: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the sliver holding part of the feeding roller, and the circumferential angle of the sliver holding part of the cylinder, so that the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the greige fabric, the relationship model between the rotation speed of the feeding device of the sliver of the artificial fur machine and the knitting cylinder rotation speed of the loom, and the sliver feeding tension relationship model between the feeding roller, the cylinder and the knitting cylinder of the loom are all valid.

[0034] Furthermore, the expression for the relationship model of the sliver feed tension of the felt roller, cylinder, and knitting needle cylinder of the loom is as follows:

[0035]

[0036] F1 = g * V02 / r2

[0037] F2 = g * V02 / R1

[0038] F3 = g * V02 / R3

[0039] F4 = G * V12 / R4

[0040] Where F1 represents the centripetal force on the sliver on the second feed roller, F2 represents the centripetal force on the sliver on the first cylinder, F3 represents the centripetal force on the sliver on the third cylinder, and F4 represents the centripetal force on the sliver on the loom. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the second feed roller. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the first cylinder. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the third cylinder. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a flowchart of a method for controlling the feeding of fur strips in an artificial fur machine according to an embodiment of the present invention;

[0043] Figure 2 This is a process diagram of a method for controlling the feeding of a synthetic fur machine according to an embodiment of the present invention;

[0044] Figure 3 This is a process diagram of the feeding tension of a sliver in a synthetic fur machine, provided by an embodiment of the present invention. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0046] Example 1:

[0047] This invention provides a method for controlling the feeding of slivers in an artificial fur machine, such as... Figure 1 As shown, it includes:

[0048] S100, The circumferential angle and radius of the sliver holding part of the feeding roller in the feeding device of the artificial fur machine, and the circumferential angle and radius of the sliver holding part of the cylinder form a description of the feeding path length of the sliver before entering the loom.

[0049] Specifically, such as Figure 2 The embodiment of the present invention shown takes an artificial fur machine including a first feeding roller 1, a second feeding roller 2, a first cylinder 3, a second cylinder 4, a third cylinder 5, and a loom 6 as an example. The first feeding roller 1 and the second feeding roller 2 are placed tangentially to each other from left to right. The first cylinder 3, the second cylinder 4, and the third cylinder 5 are arranged closely together in a triangle and are tangential to each other. The first cylinder 3 is also tangential to the first feeding roller 1 and the second feeding roller 2. Among them, the second feeding roller 2, the first cylinder 3, and the third cylinder 5 all have a sliver holding part. The radii of the first feeding roller 1 and the second feeding roller 2 are r1 and r2, respectively, r1 = r2. The radii of the first cylinder 3, the second cylinder 4, and the third cylinder 5 are R1, R2, and R3, respectively, R1 = R2, r2 < R1 < R3. The major axis radius of the loom 6 is R4. The rotational speeds between the two feeding rollers and the three cylinders are consistent and are all set to V0. The rotational speed of the knitting cylinder of the loom 6 is V1.

[0050] When the wool sliver is fed in, it enters between the first cylinder 3 and the second cylinder 4 through the extrusion conveying channel of the upper first feeding roller 1 and the second feeding roller 2, and is clamped and extruded into the intermediate feeding path, and then enters the loom 6 for manufacturing through the gripping of the lower third cylinder 5. Therefore, the length of the wool sliver feeding path, that is, the length of the wool sliver in the feeding device section, is as shown in the following formula (1):

[0051] L1=∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180 (1)

[0052] When r1 = r2, cos∠1 = (r2 + R1) / r2

[0053] Wherein, ∠1 represents the circumferential angle from the moment the sliver enters the second feed roller 2 to the moment it ends being held by the second feed roller 2, that is, the circumferential angle of the sliver holding portion of the second feed roller 2; ∠2 represents the circumferential angle from the moment the sliver enters the first cylinder 3 to the moment it ends being held by the first cylinder 3, that is, the circumferential angle of the sliver holding portion of the first cylinder 3; and ∠3 represents the circumferential angle from the moment the sliver enters the third cylinder 5 to the moment it ends being held by the third cylinder 5, that is, the circumferential angle of the sliver holding portion of the third cylinder 5.

[0054] S200. Based on the feeding path length of the wool sliver, the length of the wool sliver to be fed, and the process parameters of the fabric after it comes off the machine, an initial correspondence model between the wool sliver feeding length of the artificial fur machine and the process parameters of the fabric is constructed. The expressions of this initial correspondence model are shown in the following formulas (2) and (3):

[0055] L3+L1=L2·m (2)

[0056] L2=l / n (3)

[0057] Where L3 represents the length of the remaining yarn outside the feeding device after removing the yarn inside the feeding device, m represents the total number of needles in the cylinder diameter of the artificial fur loom, L2 represents the unit yarn length of the greige fabric after the fur fabric comes off the machine, l represents the yarn length contained in a single row of loops within a unit length of the greige fabric, and n represents the number of loops contained in a single row within a unit length of the greige fabric.

[0058] Therefore, for the artificial fur machine with a specific structure provided in the embodiments of the present invention, substituting formula (1) yields the initial correspondence model between the sliver feeding length of the specific artificial fur machine and the process parameters of the fabric, as shown in formula (4):

[0059] L3+∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180=l·m / n (4)

[0060] S300, Introducing the influence coefficient k of the wool strip feeding stagei Influence coefficient k of the wool top weaving stage j To compensate for the reduction in the feed length of the wool sliver caused by the influencing factors in the feeding and weaving stages, an initial correspondence model between the wool sliver feeding device parameters of the artificial fur machine and the process parameters of the greige fabric is optimized. A target correspondence model between the wool sliver feeding length of the artificial fur machine and the process parameters of the greige fabric is obtained. A relationship model between the rotation speed of the wool sliver feeding device of the artificial fur machine and the cylinder rotation speed of the loom is constructed. The influencing factors include damage, stretching, friction, recycling, and shrinkage.

[0061] Considering that in actual production, the wool top may be affected by damage, stretching, friction, recycling, shrinkage, etc. during the feeding and weaving stages, this invention designs influence coefficients for different stages of influencing factors on the wool top feeding. Specifically, this invention introduces an influence coefficient (k... i k j The numbers () represent the reduction and compensation of the wool top feed length during the feeding stage and the weaving stage, respectively, making the relationship model closer to actual production conditions. The influence coefficients of the factors influencing the wool top feed length at different stages range from 0 to k. i <1, 0<k j <1, which can be dynamically adjusted according to actual production conditions and quality requirements.

[0062] Specifically, the expression for the target correspondence model between the feed length of the artificial fur machine and the process parameters of the fabric is shown in the following formula (5):

[0063] k i ·(L3+L1)=k j ·(l·m / n) (5)

[0064] For the artificial fur machine with a specific structure provided in the embodiments of the present invention, the target correspondence model is as shown in the following formula (6):

[0065] k i ·(L3+∠1·r2·π / 180+∠2·R1·π / 180+∠3·R3·π / 180)=k j ·(l·m / n) (6)

[0066] By linking the sliver length within a unit length of fabric loop to the sliver feeding length on the artificial fur machine, an equation is established between the sliver length along the feeding path, the remaining sliver length externally, and the sliver length required per unit loop of the fabric. This relationship allows for a theoretically consistent match between the sliver feeding device parameters and the weaving process parameters, thus providing a reliable basis for adjusting the parameters of the sliver feeding device.

[0067] In addition, in order to ensure that the feeding tension of the wool sliver on the artificial fur machine remains uniform and constant, and to reduce problems such as incomplete wool sliver, poor quality, uneven thickness, and irregular arrangement caused by uneven force, a model is constructed to show the relationship between the speed of the feeding device of the wool sliver on the artificial fur machine and the speed of the cylinder of the loom, as shown in the following formulas (7) to (10):

[0068] L3+L1=V0·t (7)

[0069] m·T / t=2R4·π / t=V1 (8)

[0070] m=V1·t / T (9)

[0071] k i ·V0·t=k j ·l·V1·t / T·n (10)

[0072] Where V0 represents the rotational speed of the feeding device, V1 represents the rotational speed of the knitting cylinder of the loom, t represents the time required for the artificial fur machine to weave one revolution, and T represents the needle pitch of the knitting cylinder diameter of the loom.

[0073] For the artificial fur machine with the specific structure described above, V0 refers to the rotational speed of the first feeding roller 1, the second feeding roller 2, the first cylinder 3, the second cylinder 4, and the third cylinder 5, and V1 refers to the rotational speed of the loom 6.

[0074] S400. Decompose the fabric process parameters of the artificial fur fabric sample after it comes off the machine, and obtain the manufacturing process parameters of the artificial fur machine related to the feed length of the wool strip, including the speed of the loom, the number of needles, the cylinder diameter, the needle pitch, the diameter of the wool feeding roller inside the artificial fur machine, the speed of the wool feeding roller, the arrangement of the wool feeding roller, the diameter of the cylinder, the speed of the cylinder, and the arrangement of the cylinder.

[0075] S500. In the tops feeding stage of the formal production process, based on the obtained process parameters of the greige fabric after the artificial fur machine sample comes off the machine, adjust one or more of the following in the feeding device: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the tops holding part of the feeding roller, and the circumferential angle of the tops holding part of the cylinder. This will ensure that the target correspondence model between the tops feeding length of the artificial fur machine and the process parameters of the greige fabric, and the relationship model between the rotation speed of the tops feeding device of the artificial fur machine and the cylinder rotation speed of the loom are established.

[0076] Since the parameters related to the loom in equations (6) to (10) can be obtained after small-scale testing, the sliver feeding effect can be controlled by adjusting one or more of the following: the radius r1 of the first feeding roller 1, the radius r2 of the second feeding roller 2, the radius R1 of the first cylinder 3, the radius R2 of the second cylinder 4, the radius R3 of the third cylinder 5, the circumferential angle ∠1 of the sliver holding part of the second feeding roller 2, the circumferential angle ∠2 of the sliver holding part of the first cylinder 3, the circumferential angle ∠3 of the sliver holding part of the third cylinder 5, and the rotational speed V0. This will make equations (6) to (10) true, thereby achieving sliver feeding effect control and obtaining a uniform fabric surface effect.

[0077] In summary, this invention establishes a model relating the sliver feeding length to the fabric process parameters, as well as a model relating the sliver feeding device speed of the artificial fur machine to the cylinder speed of the loom. These models serve as the basis for adjusting relevant parameters of the feeding device. By reverse engineering the process, the factors affecting the uniformity of sliver feeding are gradually adjusted, effectively improving the artificial fur machine's ability to predict and control the sliver feeding length. This provides theoretical support and technical means for process parameter formulation, equipment adjustment, quality assurance, and resource conservation. Compared to traditional methods relying on experience and simple linear speed control, this invention's sliver feeding effect control method combines theoretical calculation with actual measurement. This maintains the accuracy and stability of the sliver feeding length under different equipment and batch production conditions, thereby achieving a comprehensive improvement in the quality and production efficiency of artificial fur products.

[0078] Furthermore, step S300 also includes: constructing a model of the sliver feeding tension relationship between the feed roller, cylinder, and knitting needle cylinder of the loom;

[0079] Step S500 is as follows: In the sliver feeding stage of the formal production process, based on the obtained process parameters of the greige fabric after the artificial fur machine sample comes off the machine, adjust one or more of the following in the feeding device: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the sliver holding part of the feeding roller, and the circumferential angle of the sliver holding part of the cylinder, so that the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the greige fabric, the relationship model between the rotation speed of the feeding device of the sliver of the artificial fur machine and the cylinder rotation speed of the loom, and the sliver feeding tension relationship model between the feeding roller, the cylinder and the knitting cylinder of the loom are all valid.

[0080] like Figure 3 As shown, during the feeding process, the feed tension F is mainly provided by the centripetal force Fi generated by the rotation of the feed roller and the cylinder. i This controls the feeding of the wool sliver. Taking the wool sliver feeding structure of the artificial fur machine with two feeding rollers and three cylinders as an example, the expression of the centripetal force F1 of the wool sliver on the second feeding roller 2 is as shown in the following formula (11):

[0081] F1 = g * V0 2 / r2 (11)

[0082] The expression for the centripetal force F2 on the first cylinder 3 is shown in the following formula (12):

[0083] F2 = g * V0 2 / R1 (12)

[0084] The expression for the centripetal force F3 of the wool strip on the third cylinder 5 is shown in the following formula (13):

[0085] F3 = g * V0 2 / R3 (13)

[0086] Where g represents the sliver mass after combing, squeezing, and recycling in the feeding device, and V0 represents the rotational speed between the two feeding rollers and the three cylinders.

[0087] To ensure uniform feeding of the wool sliver, the centripetal forces F1, F2, and F3 experienced by the wool sliver in each feeding device must maintain the feeding tension F under their respective influence coefficients. i Equally, during the weaving process, the feeding tension F of the sliver is mainly provided by the centripetal force F4 generated when the loom 6 is working. j Similarly, in order to ensure the uniformity of the wool sliver during the weaving stage, the tension F experienced by the wool sliver during the weaving process must be controlled. j The feeding tension F of the wool sliver in each feeding device i Equal, i.e., F i =F j .

[0088] Specifically, the centripetal forces experienced by the sliver on the second feed roller 2, the first cylinder 3, and the third cylinder 5 are respectively influenced by the coefficients. Influence coefficient of frictional resistance Influence coefficient of frictional resistance The following formula (14) is satisfied:

[0089]

[0090] in, This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the second feed roller 2. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the first cylinder 3. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the third cylinder 5.

[0091] The sliver feeding tension F during loom 6 operation j The specific expression is shown in the following formula (15):

[0092] F j =k j ·F4= k j G* V12 / R4 (15)

[0093] Wherein, G represents the quality of the yarn on the knitting needle after it has undergone processes such as looping, bending, and pulling during the knitting process.

[0094] Therefore, in this embodiment, the relationship model of the sliver feeding tension between the feeding roller, the cylinder, and the knitting cylinder of the loom is shown in the following formula (16):

[0095]

[0096] Some steps in the embodiments of the present invention can be implemented using software, and the corresponding software program can be stored in a readable storage medium, such as an optical disc or a hard disk.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for controlling the feeding of slivers in an artificial fur machine, characterized in that, include: S100, The circumferential angle and radius of the sliver holding part of the feeding roller in the feeding device of the artificial fur machine, and the circumferential angle and radius of the sliver holding part of the cylinder form a description of the feeding path length of the sliver before entering the loom. S200. Based on the feeding path length of the wool strip, the length of the wool strip to be fed, and the process parameters of the fabric after it comes off the machine, construct an initial correspondence model between the wool strip feeding length of the artificial fur machine and the process parameters of the fabric. S300, Introducing the influence coefficient of the wool strip feeding stage k i Influence coefficient of the wool strip weaving stage k j To compensate for the reduction in the feed length of the wool sliver caused by the influencing factors in the feeding and weaving stages, an initial correspondence model between the wool sliver feeding device parameters of the artificial fur machine and the process parameters of the greige fabric is optimized. A target correspondence model between the wool sliver feeding length of the artificial fur machine and the process parameters of the greige fabric is obtained. A relationship model between the rotation speed of the wool sliver feeding device of the artificial fur machine and the cylinder rotation speed of the loom is constructed. The influencing factors include damage, stretching, friction, recycling, and shrinkage. S400. Decompose the fabric process parameters of the artificial fur fabric sample after it comes off the machine, and obtain the manufacturing process parameters of the artificial fur machine related to the feed length of the wool strip, including the speed of the loom, the number of needles, the cylinder diameter, the needle pitch, the diameter of the wool feeding roller inside the artificial fur machine, the speed of the wool feeding roller, the arrangement of the wool feeding roller, the diameter of the cylinder, the speed of the cylinder, and the arrangement of the cylinder. S500. In the sliver feeding stage of the formal production process, based on the obtained artificial fur fabric sample after it comes off the machine, adjust one or more of the following: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the sliver holding part of the feeding roller, and the circumferential angle of the sliver holding part of the cylinder. This will ensure that the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the fabric, and the relationship model between the rotation speed of the sliver feeding device of the artificial fur machine and the cylinder rotation speed of the loom are established.

2. The method according to claim 1, characterized in that, The feeding device of the artificial fur machine includes a first feeding roller, a second feeding roller, a first cylinder, a second cylinder, and a third cylinder. The weaving device of the artificial fur machine includes a loom. The first feeding roller and the second feeding roller are placed tangentially to each other from left to right. The first cylinder, the second cylinder, and the third cylinder are arranged in a triangular shape and are tangential to each other. The first cylinder is also tangential to the first feeding roller and the second feeding roller. The second feeding roller, the first cylinder, and the third cylinder all have a sliver holding part. The expression for the length of the feeding path is: L1 = ∠1·r2 ·π / 180+ ∠2·R1 ·π / 180+ ∠3·R3 ·π / 180 when When r1=r2, cos∠1 = ( r2 + R1 ) / r2 in, ∠1 This indicates the circumferential angle of the sliver holding portion of the second feed roller. ∠2 This indicates the circumferential angle of the gripping part of the first cylinder. ∠3 This indicates the circumferential angle of the gripping part of the third cylinder. r1 This indicates the radius of the first feed roller. r2 This indicates the radius of the second feed roller. R1 Indicates the radius of the first cylinder. R3 This indicates the radius of the third silo.

3. The method according to claim 2, characterized in that, The expression for the initial correspondence model between the feed length of the artificial fur machine and the process parameters of the fabric is as follows: L3 + L1 = L2 · m L2 = l / n L3 + ∠1·r2 ·π / 180+ ∠2·R1 ·π / 180+ ∠3·R3 ·π / 180= l · m / n in, L3 This indicates the length of the wool strip remaining outside the feeding device after removing the wool strip inside. m This indicates the total number of needles within the cylinder diameter of a synthetic fur knitting machine. L2 This indicates the unit yarn length of the greige fabric after it comes off the machine. l This indicates the length of the sliver contained in a single row of loops per unit length of the fabric. n This indicates the number of loops contained in a single row per unit length of the fabric.

4. The method according to claim 3, characterized in that, The expression for the target correspondence model between the feed length of the artificial fur machine and the process parameters of the fabric is as follows: k i ·( L3 + L1 )= k j ·( l · m / n ) k i ·( L3 + ∠1·r2 ·π / 180+ ∠2·R1 ·π / 180+ ∠3·R3 ·π / 180)= k j ·( l · m / n ) in, k i This indicates the influence coefficient during the wool strip feeding stage. k j This represents the influence coefficient of the wool strip weaving stage.

5. The method according to claim 4, characterized in that, The expression for the relationship between the rotational speed of the feeding device of the artificial fur machine and the rotational speed of the knitting machine cylinder is as follows: L3 + L1=V0·t m·T / t=2R4 ·π / t = V1 m = V1 · t / T k i · V0·t = k j · l · V1 · t / T · n in, V0 Indicates the rotational speed of the feeding device. V1 This indicates the rotational speed of the knitting cylinder on the loom. t This indicates the time required for an artificial fur machine to weave one revolution. T This indicates the needle pitch within the cylinder diameter of the knitting needle cylinder of the loom. R4 This indicates the diameter of the knitting cylinder of the loom.

6. The method according to claim 5, characterized in that, The S300 further includes: constructing a model of the sliver feeding tension relationship between the feed roller, cylinder, and knitting cylinder of the loom; S500 refers to the following: During the sliver feeding stage of the formal production process, based on the obtained process parameters of the greige fabric after the artificial fur machine sample is completed, one or more of the following are adjusted in the feeding device: the radius of the feeding roller, the radius of the cylinder, the rotation speed of the feeding roller, the rotation speed of the cylinder, the circumferential angle of the sliver holding part of the feeding roller, and the circumferential angle of the sliver holding part of the cylinder. This ensures that the target correspondence model between the sliver feeding length of the artificial fur machine and the process parameters of the greige fabric, the relationship model between the rotation speed of the sliver feeding device of the artificial fur machine and the rotation speed of the knitting cylinder of the loom, and the sliver feeding tension relationship model between the feeding roller, the cylinder, and the knitting cylinder of the loom are all valid.

7. The method according to claim 6, characterized in that, The expression for the sliver feeding tension relationship model of the wool roller, cylinder, and knitting needle cylinder of the loom is as follows: ·F1 = · F2 = · F3 = k j · F4 F1 = g · V0² / r2 F2 = g · V0² / R1 F3 = g · V0² / R3 F4 = G · V1² / R4 in, F1 This represents the centripetal force experienced by the wool sliver on the second feed roller. F2 This indicates the centripetal force experienced by the wool strip on the first cylinder. F3 This indicates the centripetal force experienced by the wool strip on the third cylinder. F4 This represents the centripetal force experienced by the wool sliver on the loom. This represents the influence coefficient of damage, stretching, friction, recycling, and shrinkage on the second feed roller. This represents the influence coefficient of damage, stretching, friction, recycling, and shrinkage on the first cylinder. This represents the influence coefficient of factors such as damage, stretching, friction, recycling, and shrinkage on the third cylinder. g This indicates the quality of the wool top after it has undergone combing, squeezing, and recycling processes in the feeding device; G This indicates the quality of the yarn strip on the knitting needles after it has undergone looping, bending, and pulling during the knitting process.

Citation Information

Patent Citations

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