A double-sided asynchronous warp knitting machine, a knitting process and a knitted fabric

Abstract

The application discloses a double-face asynchronous warp knitting machine, comprising: a first needle bed system, comprising a first needle bed assembly and a first needle bed driving mechanism, the first needle bed assembly comprising first latch needles, the first needle bed driving mechanism being used for driving the first latch needles to operate according to a first curve; a second needle bed system, comprising a second needle bed assembly and a second needle bed driving mechanism, the second needle bed assembly comprising second latch needles, the second needle bed driving mechanism being used for driving the second latch needles to operate according to a second curve, so that the loop-forming period of the second latch needles is twice that of the first latch needles. A double-face asynchronous knitting process is disclosed, comprising the following steps: S101, the first latch needles are loop-formed; S102, the first latch needles are loop-formed; S103, the second latch needles are loop-formed; and S104, the steps S101-S103 are circularly repeated. A knitted fabric is knitted by the double-face asynchronous warp knitting machine. The application has the advantages that special cloth surfaces with rich changes can be knitted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of warp knitting machines, in particular to a double-face asynchronous warp knitting machine, a weaving process and a woven fabric. BACKGROUND

[0002] Double needle bed warp knitting machine is widely used in shoe material, clothing, building structure, medical, textile composite material and other fields; It is used for producing various spacer fabrics. The main feature of this type of warp knitting machine is that it has two sets of independent loop-forming mechanisms: two sets of needle beds, two sets of sinkers, and a common set of guide bars to complete the weaving of double-face fabric.

[0003] Due to the mechanical driving structure itself, the existing double needle bed warp knitting machine, when weaving double-face fabric, the main shaft rotates 360°, i.e. one revolution, and each set of needle bed completes a loop-forming action, and all loop-forming actions of the two sets of needle beds are the same, and the two sets of needle beds move apart by 180°. The detailed motion curve is shown in the accompanying Figure 2 Therefore, the length of each horizontal line loop of the front and back of the woven fabric is the same, as shown in the accompanying Figure 1 The structure of the front and back of the fabric is consistent, and such fabric structure is single. SUMMARY

[0004] Therefore, it is necessary to provide a double-face asynchronous warp knitting machine, a weaving process and a woven fabric to solve the problem that the existing warp knitting machine can only weave double-face fabric with the same front and back structure.

[0005] To achieve the above-mentioned purpose, the inventor provides a double-face asynchronous warp knitting machine, comprising:

[0006] A first needle bed system, the first needle bed system comprising a first needle bed assembly and a first needle bed driving mechanism, the first needle bed assembly comprising a first needle, and the first needle bed driving mechanism being configured to drive the first needle to operate according to a first curve;

[0007] A second needle bed system, the second needle bed system comprising a second needle bed assembly and a second needle bed driving mechanism, the second needle bed assembly comprising a second needle, and the second needle bed driving mechanism being configured to drive the second needle to operate according to a second curve, so that the loop-forming period of the second needle is twice that of the first needle.

[0008] In some embodiments, further comprising:

[0009] A main shaft, the main shaft being configured to drive the first needle bed driving mechanism and the second needle bed driving mechanism to operate.

[0010] In some embodiments, the first needle bed driving mechanism comprises a first cam, the main shaft is in driving connection with the first cam, the first cam is in driving connection with the first latch needle, and the first latch needle operates according to the first curve under the action of the profile of the circumferential surface of the first cam.

[0011] In some embodiments, the second needle bed driving mechanism comprises a second cam, the main shaft is in driving connection with the second cam, the second cam is in driving connection with the second latch needle, and the second latch needle operates according to the second curve under the action of the profile of the circumferential surface of the second cam.

[0012] In some embodiments, the horizontal axis of the first curve and the horizontal axis of the second curve are the main shaft rotation angle, and the vertical axis of the first curve and the vertical axis of the second curve are the displacement of the respective needle bed driving mechanism; the horizontal axis of the first curve and the horizontal axis of the second curve are provided with a first point, a second point, a third point, a fourth point and a fifth point.

[0013] In some embodiments,

[0014] When the main shaft rotation angle is between the first point and the second point, the first latch needle stitches;

[0015] When the main shaft rotation angle is between the second point and the third point, the first latch needle stops;

[0016] When the main shaft rotation angle is between the third point and the fourth point, the first latch needle stitches;

[0017] When the main shaft rotation angle is between the fourth point and the fifth point, the first latch needle stops.

[0018] In some embodiments,

[0019] When the main shaft rotation angle is between the first point and the fourth point, the second latch needle stops;

[0020] When the main shaft rotation angle is between the fourth point and the fifth point, the second latch needle stitches.

[0021] In some embodiments, the first point is 0° of the main shaft rotation angle, and the fifth point is 360° of the main shaft rotation angle.

[0022] Different from the prior art, the double-face asynchronous warp knitting machine in the technical scheme has the following advantages: under the cooperation and driving of the first needle bed driving mechanism and the second needle bed driving mechanism, the looping period of the second latch needle is twice that of the first latch needle, and the first latch needle and the second latch needle alternately and cyclically work, so that the double-face asynchronous warp knitting technology can be realized, and the two needle bed systems realize different looping processes, that is, the looping period of one side needle bed system is twice that of the other side needle bed, that is, in the process of forming one loop of one side needle bed system, the other side needle bed system has completed the knitting action of two courses, so that the knitted fabric has the characteristics that the loop on one side is large and the loop on the other side is small, and the fabric can present the characteristics that the loop on one side is large and the loop on the other side is small, so that the fabric with different structures on the front and back sides can be produced, and the special fabric effect with more changes can be produced.

[0023] The inventor also provides a double-face asynchronous knitting process suitable for the double-face asynchronous warp knitting machine in any one of the above aspects, and the process comprises the following steps.

[0024] S101: the first latch needle is looped;

[0025] S102: the first latch needle is looped;

[0026] S103: the second latch needle is looped;

[0027] S104: the steps S101-S103 are cycled.

[0028] Different from the prior art, the double-face asynchronous knitting process in the technical scheme realizes the double-face asynchronous warp knitting technology, and makes the two needle bed systems realize different looping processes, that is, the looping period of one side needle bed system is twice that of the other side needle bed, that is, in the process of forming one loop of one side needle bed system, the other side needle bed system has completed the knitting action of two courses, so that the knitted fabric has the characteristics that the loop on one side is large and the loop on the other side is small, and the fabric can present the characteristics that the loop on one side is large and the loop on the other side is small, so that the fabric with different structures on the front and back sides can be produced, and the special fabric effect with more changes can be produced.

[0029] The inventor also provides a knitted fabric knitted by the double-face asynchronous warp knitting machine in any one of the above aspects.

[0030] Different from the prior art, the knitted fabric in the technical scheme presents the characteristics that the loop on one side is large and the loop on the other side is small, and the fabric has different structures on the front and back sides and has the special fabric effect with more changes.

[0031] The above summary related to the invention is only a summary of the technical solutions of the present application. In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, further implement the contents recorded in the specification and drawings, and enable the above and other purposes, characteristics and advantages of the present application to be more easily understood, the following will be described in combination with the specific embodiments of the present application and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and cannot be considered as limitations of the present application.

[0033] In the drawings of the specification:

[0034] Figure 1 Front (back) fabric effect diagram of the double-sided fabric described in the background art;

[0035] Figure 2 Front and back needle bed movement curve diagram of the double needle bed warp knitting machine described in the background art;

[0036] Figure 3 Partial schematic diagram of the double-sided asynchronous warp knitting machine described in the specific embodiments;

[0037] Figure 4 Partial structure schematic diagram of the double-sided asynchronous warp knitting machine described in the specific embodiments;

[0038] Figure 5 Effect diagram of single yarn knitting of the first needle bed system described in the specific embodiments;

[0039] Figure 6 Front fabric effect diagram of the first needle bed system knitting described in the specific embodiments;

[0040] Figure 7 Effect diagram of single yarn knitting of the second needle bed system described in the specific embodiments;

[0041] Figure 8 Front fabric effect diagram of the second needle bed system knitting described in the specific embodiments;

[0042] Figure 9 Schematic diagram of the first curve and the second curve described in the specific embodiments;

[0043] Figure 10 Schematic diagram of the first curve and the second curve described in the specific embodiments;

[0044] Figure 11 Movement curve diagram of the guide bar described in the specific embodiments;

[0045] Figure 12Another movement curve diagram of the comb for the specific embodiment;

[0046] Figure 13 Process diagram of a set of weave knitting completed by the double-sided asynchronous warp knitting machine for the specific embodiment;

[0047] The reference signs involved in the above-mentioned figures are explained as follows:

[0048] 1. first latch needle;

[0049] 2. first latch needle bed;

[0050] 3. first needle bed carrier;

[0051] 4. first needle bed driving mechanism; 400, first cam;

[0052] 5. first curve;

[0053] 6. second latch needle;

[0054] 7. second latch needle bed;

[0055] 8. second needle bed carrier;

[0056] 9. second needle bed driving mechanism; 900, second cam;

[0057] 10. second curve;

[0058] A, first point;

[0059] B, second point;

[0060] C, third point;

[0061] D, fourth point;

[0062] E, fifth point. Specific embodiment

[0063] In order to explain the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved, etc. of the present application in detail, the following will be described in detail in combination with the specific embodiments listed and the accompanying drawings. The embodiments described in this paper are only used to more clearly explain the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0064] The term "embodiment" is mentioned herein means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0065] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0066] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " herein generally represents that the associated objects before and after are a "or" logical relationship.

[0067] In the present application, the terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0068] Without more limitations, in the present application, the phrases "include", "contain", "have" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent to such process, method or product.

[0069] As the same as the understanding in the "Guidelines for Examination", in the present application, the expressions "greater than", "less than", "exceed" and the like are understood as not including the number; the expressions "above", "below", "within" and the like are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.

[0070] In the description of the embodiments of the present application, the spatially relative terms, such as "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or position relationship shown in the specific embodiment or the accompanying drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and do not indicate or imply that the indicated device or component must have a particular position, a particular orientation, or be constructed or operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0071] Unless otherwise expressly specified or limited, the terms "mount", "connect", "connection", "fixed", "set", and the like used in the description of the embodiments of the present application should be interpreted broadly. For example, the "connection" can be fixed connection, or detachable connection, or integral setting; it can be mechanical connection, or electrical connection, or communication connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0072] Double needle bed warp knitting machine is widely used in shoe material, clothing, building structure, medical, textile composite material and other fields; it is used for producing various spacer fabrics. The main feature of this type of warp knitting machine is that it has two sets of independent loop forming mechanisms: two sets of needle beds, two sets of sinkers, and a common set of guide bars to complete the knitting of double-sided fabric.

[0073] Due to the mechanical drive structure itself, the existing double needle bed warp knitting machine, when knitting double-sided fabric, the main shaft rotates 360°, i.e. one revolution, and each set of needle bed completes a loop forming action once, and all loop forming actions of the two sets of needle beds are the same, the two sets of needle beds move apart by 180°, and the detailed motion curve is shown in the attached Figure 2 Therefore, the length of each horizontal row of loops on the front and back of the fabric is the same, as shown in Figure 1 The structure of the front and back of the fabric is consistent, and such fabric structure is single.

[0074] Therefore, the present application provides a double-sided asynchronous warp knitting machine, which is a double needle bed warp knitting machine. The structural characteristics of the machine enable the two needle beds to perform different loop forming processes, realize double-sided asynchronous warp knitting technology, produce fabric with different structures on the front and back, and produce special fabric effects with more changes.

[0075] Please refer to Figure 3 and Figure 4In specific embodiments, the double-face asynchronous warp knitting machine comprises a first needle bed system and a second needle bed system, the first needle bed system and the second needle bed system are structures in a loop-forming device, the loop-forming device is padded and looped under the action of a guide bar device, so as to complete the knitting of different fabrics, that is, under the cooperation of the guide bar device, the first needle bed system and the second needle bed system respectively complete different loop-forming actions.

[0076] The first needle bed system comprises a first needle bed assembly and a first needle bed driving mechanism 4, the first needle bed assembly comprises a first latch needle 1, and the first needle bed driving mechanism 4 is used for driving the first latch needle 1 to operate according to a first curve 5; the second needle bed system comprises a second needle bed assembly and a second needle bed driving mechanism 9, the second needle bed assembly comprises a second latch needle 6, and the second needle bed driving mechanism 9 is used for driving the second latch needle 6 to operate according to a second curve 10, so that the loop-forming period of the second latch needle 6 is twice that of the first latch needle 1.

[0077] The double-face asynchronous warp knitting machine needs to control the latch needles of the two needle bed systems to move according to certain curves, that is, the first latch needle 1 moves according to a preset first curve 5, and the second latch needle 6 moves according to a preset second curve 10, so that compared with the existing double-needle bed warp knitting machine, the generated knitted fabric is completely new and is not obtained by the operation of the existing double-needle bed warp knitting machine.

[0078] The double-face asynchronous warp knitting machine, under the cooperation of the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9, makes the loop-forming period of the second latch needle 6 twice that of the first latch needle 1, and the first latch needle 1 and the second latch needle 6 alternately and cyclically work, so that the double-face asynchronous warp knitting technology can be realized, and the two needle bed systems realize different loop-forming processes, that is, the loop-forming period of one side needle bed system is twice that of the other side needle bed, that is, in the process of forming one loop, the other side needle bed system has completed the knitting action of two courses, so that the knitted fabric has the characteristics that one side loop is large and the other side loop is small, and therefore, a fabric surface with different front and back structures can be produced, and a special fabric surface effect with more changes can be produced. Figures 5 to 8

[0079] In some embodiments, the double-face asynchronous warp knitting machine further comprises a main shaft, the main shaft rotates to drive the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9 to operate.

[0080] ​The first needle bed system is arranged on one side and the second needle bed system is arranged on the other side. A group of the first latch needles 1 are fixed on a first latch needle block, the first latch needle block is fixed on a first latch needle bed 2, the first latch needle bed 2 is fixed on a first needle bed carrier 3, the first needle bed carrier 3 is connected with a first needle bed driving mechanism 4, and the first needle bed driving mechanism 4 drives the first needle bed carrier to move upward or downward. A group of the second latch needles 6 are fixed on a second latch needle block, the second latch needle block is fixed on a second latch needle bed 7, the second latch needle bed 7 is fixed on a second needle bed carrier 8, the second needle bed carrier 8 is connected with a second needle bed driving mechanism 9, and the second needle bed driving mechanism 9 drives the second needle bed carrier 8 to move upward or downward. Optionally, the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9 are driven by a mechanical power transmission or directly driven by a servo motor or an electric motor.

[0081] When the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9 are driven by the existing mechanical power transmission, the operation of the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9 is mainly driven by the rotation of the main shaft on the main shaft of the warp knitting machine. The main shaft includes a first main shaft and a second main shaft, the first main shaft is in transmission connection with the second main shaft, the first main shaft is used for driving the first needle bed driving mechanism 4, and the second main shaft is used for driving the second needle bed driving mechanism 9. When the first main shaft rotates one circle (360°), the second main shaft also rotates one circle (360°).

[0082] In order to realize that after the first needle bed driving mechanism 4 and the second needle bed driving mechanism 9 are driven, the first needle bed system and the second needle bed system can be driven, and the looping period of the second latch needle 6 is twice that of the first latch needle 1, in some embodiments, the first needle bed driving mechanism 4 includes a first cam 400, the main shaft is in transmission connection with the first cam 400, the first cam 400 is in transmission connection with the first latch needle 1, and under the action of the peripheral surface profile of the first cam 400, the first latch needle 1 operates according to the first curve 5. In some embodiments, the second needle bed driving mechanism 9 includes a second cam 900, the main shaft is in transmission connection with the second cam 900, the second cam 900 is in transmission connection with the second latch needle 6, and under the action of the peripheral surface profile of the second cam 900, the second latch needle 6 operates according to the second curve 10.

[0083] In order to enable the first cam 400 to drive the first needle 1 to operate according to the first curve 5, that is, in one stitch cycle of the second needle 6, the first needle 1 performs two stitch processes, the peripheral surface profile of the first cam 400 needs to be provided with a corresponding number of highest intervals and lowest intervals. The length of the stitch cycle can be adjusted according to the requirements of the actual knitted fabric. The stitch cycle of the second needle 6 can be set to one revolution of the main shaft, that is, 360°. Taking one revolution of the main shaft as an example, the stitch cycle of the second needle 6, the first cam 400 needs to be provided with 2 lowest intervals and 2 highest intervals, and the second cam 900 needs to be provided with 1 lowest interval and 1 highest interval, and the range of the lowest interval of the second cam is larger.

[0084] Please refer to Figure 9 In some embodiments, the abscissa of the first curve 5 and the abscissa of the second curve 10 are the main shaft rotation angle, and the ordinate of the first curve 5 and the ordinate of the second curve 10 are the displacement of the respective needle bed driving mechanism; the abscissa of the first curve 5 and the abscissa of the second curve 10 are provided with a first point, a second point, a third point, a fourth point, and a fifth point.

[0085] Taking one revolution of the main shaft as an example, the stitch cycle of the second needle 6, the first curve 5 and the second curve 10 are used to reflect the relationship between the displacement of each needle and the main shaft rotation angle when the main shaft rotates one revolution, generally only indicating the displacement relationship, and the units are different. Among them, the abscissa represents the main shaft rotation angle, and the ordinate represents the displacement of each needle. The stitch process of the first needle 1 and the second needle 6, that is, according to the law of the first curve 5 and the second curve 10, five points are set on the abscissa (from small to large), which is convenient for interpreting the stitch process of the first needle 1 and the second needle 6.

[0086] In some embodiments,

[0087] When the main shaft rotation angle is between the first point and the second point, the first needle 1 stitches;

[0088] When the main shaft rotation angle is between the second point and the third point, the first needle 1 stops;

[0089] When the main shaft rotation angle is between the third point and the fourth point, the first needle 1 stitches;

[0090] When the main shaft rotation angle is between the fourth point and the fifth point, the first needle 1 stops.

[0091] In some embodiments,

[0092] When the main shaft rotation angle is between the first point and the fourth point, the second needle 6 stops;

[0093] When the main shaft rotation angle is between the fourth point and the fifth point, the second needle 6 stitches.

[0094] The length of the loop-forming cycle can be adjusted according to the requirements of the knitted fabric actually needed, please refer to Figure 10 In some embodiments, the first point is when the main shaft has a rotation angle of 0°, and the fifth point is when the main shaft has a rotation angle of 360°, that is, the loop-forming device (i.e., the first needle bed system and the second needle bed system) completes a group of knitted stitches when the main shaft rotates 360°.

[0095] Unlike the existing double-needle bed warp knitting machine, the double-sided asynchronous warp knitting machine completes a group of knitted stitches when the first needle bed system successively completes two loop-forming actions, and the second needle bed system follows the first needle bed system to complete one loop-forming action. As shown in Figure 10 , that is, the first needle bed system and the second needle bed system complete a complete stitch knitting cycle when the main shaft rotates one revolution (360°), and this cycle is repeated during knitting until the knitted fabric is obtained. In some embodiments, the rotation angle of the main shaft changes according to the type of fabric.

[0096] In this case, if the main shaft rotates one revolution is the loop-forming cycle of the second latch needle 6, then the first point A can be when the main shaft has a rotation angle of 0°, the fifth point E can be when the main shaft has a rotation angle of 360°, the second point B can be when the main shaft has a rotation angle of 90±10°, the third point C can be when the main shaft has a rotation angle of 180±10°, and the fourth point D can be when the main shaft has a rotation angle of 270±10°. In addition, the motion cycle of the guide bar also needs to be adjusted accordingly, as shown in Figure 11 or Figure 12 Similarly, the adjustment of the motion cycle of the guide bar is achieved by adjusting the profile of the circumferential surface of the guide bar cam, and under the action of the profile of the circumferential surface of the guide bar cam, the guide bar operates according to Figure 11 or Figure 12 the curve shown.

[0097] The first point, the second point, the third point, the fourth point, and the fifth point can also be set to different rotation angles of the main shaft according to requirements. In another embodiment, the first point A can be when the main shaft has a rotation angle of 0°±10°, the second point B can be when the main shaft has a rotation angle of 105°±10°, the third point C can be when the main shaft has a rotation angle of 180±10°, and the fourth point D can be when the main shaft has a rotation angle of 270°(285°)±10°.

[0098] According to some embodiments of the present application, optionally, when the main shaft has a rotation angle of 0°-90°, the first latch needle 1 knits; when the main shaft has a rotation angle of 90°-180°, the first latch needle 1 stops; when the main shaft has a rotation angle of 180°-270°, the first latch needle 1 knits; and when the main shaft has a rotation angle of 270°-360°, the first latch needle 1 stops. When the main shaft has a rotation angle of 0°-270°, the second latch needle 6 stops; and when the main shaft has a rotation angle of 270°-360°, the second latch needle 6 knits.

[0099] In combination with Figure 13As shown, the application also provides a double-sided asynchronous weaving process, which is suitable for the double-sided asynchronous warp knitting machine described in any one of the above, and comprises the following steps:

[0100] S101 the first needle 1 needle loop;

[0101] S102 the first needle 1 needle loop;

[0102] S103 the second needle 6 needle loop;

[0103] S104 the cycle steps S101-S103.

[0104] In step S101, the first needle 1 first rises and then falls, and then pauses to prepare for the next needle loop action;

[0105] In step S102, the first needle 1 first rises and then falls, and then pauses to prepare for the next needle loop action;

[0106] In the process of step S101-step S102, the second needle 6 is in a paused state, until step S103, the second needle 6 first rises and then falls, and then pauses to prepare for the next needle loop action.

[0107] The double-sided asynchronous weaving process is a double-sided asynchronous warp knitting technology, which makes two needle bed systems realize different loop forming processes, that is, the loop forming period of one needle bed system is twice that of the other needle bed, that is, in the process of forming a loop on one side, the other side has completed the knitting action of two courses, so that the knitted fabric has the characteristics that one side of the single course loop is twice the length of the other side of the single course loop, and the fabric presents the characteristics that one side of the loop is large and the other side of the loop is small, so that different front and back structures can be produced, and special fabric effects with more changes can be produced.

[0108] The application also provides a knitted fabric, which is knitted by the double-sided asynchronous warp knitting machine described in any one of the above, and has the characteristics that one side of the loop is large and the other side of the loop is small, and the front and back structures of the fabric are different, and has more special fabric effects.

[0109] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the present application, the patent protection scope of the present application should not be limited. Any equivalent structure or equivalent process substitution or modification based on the essential concept of the present application, using the content described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. A double-sided asynchronous warp knitting machine, characterized in that, The invention relates to a double-face asynchronous warp knitting machine, comprising: a first needle bed system, which comprises a first needle bed assembly and a first needle bed driving mechanism, the first needle bed assembly comprising a first latch needle, the first needle bed driving mechanism being used to drive the first latch needle to operate according to a first curve; a second needle bed system, which comprises a second needle bed assembly and a second needle bed driving mechanism, the second needle bed assembly comprising a second latch needle, the second needle bed driving mechanism being used to drive the second latch needle to operate according to a second curve, so that the stitch cycle of the second latch needle is twice that of the first latch needle; a main shaft, which is used to drive the first needle bed driving mechanism and the second needle bed driving mechanism to operate; the first needle bed driving mechanism comprises a first cam, the main shaft and the first cam being in transmission connection, the first cam and the first latch needle being in transmission connection, under the action of the profile of the circumferential surface of the first cam, the first latch needle operates according to the first curve; the second needle bed driving mechanism comprises a second cam, the main shaft and the second cam being in transmission connection, the second cam and the second latch needle being in transmission connection, under the action of the profile of the circumferential surface of the second cam, the second latch needle operates according to the second curve.

2. The double face asynchronous warp knitting machine according to claim 1, characterized in that, the abscissa of the first curve and the abscissa of the second curve are the main shaft rotation angle, the ordinate of the first curve and the ordinate of the second curve are the displacement of the respective needle bed driving mechanism; the abscissa of the first curve and the abscissa of the second curve are provided with a first point, a second point, a third point, a fourth point and a fifth point.

3. The double-face asynchronous warp knitting machine according to claim 2, wherein when the main shaft rotation angle is between the first point and the second point, the first latch needle stitches; when the main shaft rotation angle is between the second point and the third point, the first latch needle stops; when the main shaft rotation angle is between the third point and the fourth point, the first latch needle stitches; when the main shaft rotation angle is between the fourth point and the fifth point, the first latch needle stops.

4. The double-face asynchronous warp knitting machine according to claim 2, wherein when the main shaft rotation angle is between the first point and the fourth point, the second latch needle stops; when the main shaft rotation angle is between the fourth point and the fifth point, the second latch needle stitches.

5. The double face asynchronous warp knitting machine according to claim 2, characterized in that, the first point is that the main shaft rotation angle is 0°, and the fifth point is that the main shaft rotation angle is 360°.

6. A double-sided asynchronous weaving process characterized in that, The double-face asynchronous warp knitting machine according to any one of claims 1-5, comprising the following steps: S101 the first latch needle stitches; S102 the first latch needle stitches; S103 the second latch needle stitches; S104 the steps S101-S103 are repeated.

7. A braid characterized by, The double-face asynchronous warp knitting machine according to any one of claims 1-5.

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