jacquard machine

Abstract

The application discloses a jacquard machine and relates to the technical field of the jacquard machine, which comprises a jacquard head, a plurality of control yarns, a mounting plate and a weft knitting mechanism. The application is characterized in that each control yarn is connected with the connector of a control valve of the jacquard head, so that a single control valve can control one warp yarn; the plurality of control yarns arranged in the longitudinal direction and the transverse direction are divided into first control yarns and second control yarns; the warp yarns connected with the first control yarns can move between the upper warp yarn layer and the middle warp yarn layer; the warp yarns connected with the second control yarns can move between the middle warp yarn layer and the lower warp yarn layer; the weft knitting mechanism is used to weave the weft yarns in each weft cycle, so that the upper and lower woven belts can be synchronously woven, the healds of the first control yarns and the healds of the second control yarns do not interfere with each other during the weaving process, the weaving effect of the double-sided woven belt is ensured, and the weaving efficiency of the double-sided woven belt is improved.

Description

Technical Field

[0001] This invention relates to the field of jacquard machine technology, and particularly to a jacquard machine. Background Technology

[0002] Jacquard machines are typically used to manufacture woven products composed of interlaced warp and weft threads, such as elastic webbing with patterns, designs, or text.

[0003] Traditional jacquard machines typically produce only single-layer webbing. Each warp yarn in a jacquard machine is threaded through a corresponding heald, and each heald is driven by a single control valve, reciprocating between two working positions: upper and lower. When producing double-sided webbing, each heald needs to be able to move between three different working positions, rather than the two positions required for single-layer weaving. Therefore, modifications in related technologies usually involve using two cooperating control valves and an added control pulley mechanism to drive each heald. However, the cost of such modifications or purchasing a new jacquard machine with this structure is quite high, making it unsuitable for companies requiring small-batch double-sided webbing production. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a jacquard machine that can achieve the weaving effect of double-sided webbing while reducing production costs.

[0005] According to an embodiment of the present invention, a jacquard machine is used to weave multiple warp yarns and multiple weft yarns into a ribbon and output it along the longitudinal direction. It is characterized by comprising: a jacquard head, a frame, and a cam mechanism, a boom mechanism, a knife-lifting mechanism, and multiple control valves mounted on the frame. The multiple control valves are arranged in an array along the longitudinal and transverse directions. Each control valve includes a connector capable of controlled vertical movement. The cam mechanism includes a first cam and a second cam, which are respectively driven to achieve eccentric movement. The boom mechanism includes a first boom and a second boom. Hinged to the frame and having a first axis, the first boom is configured to swing along the first axis driven by the movement of the first cam; the second boom is hinged to the frame and having a second axis, and is configured to swing along the second axis driven by the movement of the second cam; the knife-lifting mechanism includes a plurality of first lifting knives connected to the first boom and a plurality of second lifting knives connected to the second boom, the plurality of first lifting knives being spaced apart along the extension direction of the first boom and capable of being driven by the first boom to reciprocate in the vertical direction, and the plurality of second lifting knives... Arranged at intervals along the extension direction of the second boom, and driven by the second boom to reciprocate in the vertical direction, the first and second lifting knives are respectively arranged on both sides of the corresponding control valve in the longitudinal direction and cooperate with the control valve to control the position of the connector in the vertical direction; multiple control yarns are arranged in an array in the longitudinal and transverse directions, each control yarn is connected to one connector, each control yarn includes a heald, and each heald is threaded with a warp yarn; a mounting plate is located below the multiple control yarns, and the multiple control yarns are fixed by a return spring. The mounting plate is fixed; a weft knitting mechanism is used to weave the weft yarn into a plurality of warp yarns in the transverse direction during each weft cycle; wherein the plurality of warp yarns are configured to form an upper warp layer, a middle warp layer and a lower warp layer in the vertical direction respectively during transport in the longitudinal direction, a portion of the control yarns are configured as a first control yarn, such that the warp yarns connected to the first control yarn can move between the upper warp layer and the middle warp layer, and another portion of the control yarns are configured as a second control yarn, such that the warp yarns connected to the second control yarn can move between the middle warp layer and the lower warp layer.

[0006] The jacquard machine according to embodiments of the present invention has at least the following beneficial effects: By setting a connector that connects each control yarn to a control valve, a single control valve can control one warp yarn. Furthermore, multiple control yarns arranged in an array along the longitudinal and transverse directions are divided into first control yarns and second control yarns. The warp yarns connected to the first control yarns can move between the upper and middle warp layers, while the warp yarns connected to the second control yarns can move between the middle and lower warp layers. In conjunction with the weft knitting mechanism, the weft yarns are woven into each weft cycle, thereby achieving synchronous weaving of the upper and lower webbing. Moreover, during the weaving process, the heddles of the first and second control yarns do not interfere with each other, ensuring the weaving effect of the double-sided webbing while improving its weaving efficiency.

[0007] According to some embodiments of the present invention, the weft knitting mechanism is located downstream of the plurality of control yarns along the transport direction of the warp yarns, and the weft knitting mechanism is configured to weave a weft yarn into a first shed between the upper warp layer and the middle warp layer during the gap of the corresponding first control yarn movement, and to weave another weft yarn into a second shed between the middle warp layer and the lower warp layer during the gap of the corresponding second control yarn movement.

[0008] According to some embodiments of the present invention, the weft knitting mechanism includes a first weft guide head, a first weft needle, a second weft guide head, and a second weft needle. The first and second weft guide heads are driven to swing in a transverse direction, and the first and second weft needles are driven to swing in a longitudinal direction. The first weft guide head is configured to pass a weft yarn through the first shed in a first direction during each weft cycle, and after being hooked by the first weft needle, pass through the first shed in a second direction to achieve a reset. The first and second directions are opposite. The second weft guide head is configured to pass another weft yarn through the second shed in the first direction during each weft cycle, and after being hooked by the second weft needle, pass through the second shed in the second direction to achieve a reset.

[0009] According to some embodiments of the present invention, the weft knitting mechanism further includes a reed that can be driven to swing in the longitudinal direction and is configured to beat the weft yarn after the first weft guide head and the second weft guide head have been reset.

[0010] According to some embodiments of the present invention, the jacquard machine further includes a clamping mechanism located downstream of the reed along the conveying direction of the weft yarn, the clamping mechanism being used to press the woven ribbon vertically.

[0011] According to some embodiments of the present invention, the webbing further includes connecting yarns; the jacquard machine further includes a heald frame mechanism, the heald frame mechanism being arranged upstream of the control yarn, the heald frame mechanism including a plurality of parallel weaving frames that are respectively movable in the vertical direction to the corresponding connecting yarns, the weaving frames being able to drive the corresponding warp yarns to move between a first position, a second position and a third position, the second position being located between the first position and the third position, the first position being located above the third position, the height between the first position and the second position being sufficient for the weft knitting mechanism to weave in one weft yarn, and the height between the second position and the third position being sufficient for the weft knitting mechanism to weave in another weft yarn.

[0012] According to some embodiments of the present invention, the control yarn further includes a control rope, one end of which is connected to the connector and the other end of which is connected to the heald. The heald includes a linking portion and an adjusting portion. The linking portion forms a heald hole through which the warp yarn passes. The adjusting portion is located above the linking portion and is connected to the control rope. The adjusting portion is configured to adjust the fixed position of the heald and the control rope.

[0013] According to some embodiments of the present invention, the control valve further includes a pulley assembly, a fixing part, a first slider, and a second slider. The pulley assembly includes a first pulley and a second pulley. The first slider and the second slider are respectively located on both sides of the control valve along the longitudinal direction and are capable of moving in the vertical direction. A first connecting rope is connected between the first slider and the second slider and is wound around the first pulley. A second connecting rope is connected between the connector and the fixing part and is wound around the second pulley. The first lifting knife is configured to drive the first slider to move in the vertical direction, and the second lifting knife is configured to drive the second slider to move in the vertical direction.

[0014] According to some embodiments of the present invention, the control valve is configured such that when energized, the first slider and the second slider can respectively follow the first and second lifting blade movements, and when de-energized, the first slider and the second slider respectively move to the upper limit of their own movement paths and then stop following the first and second lifting blade movements.

[0015] According to some embodiments of the present invention, the jacquard machine includes a control panel, the control panel including a controller, the controller being configured to receive the weaving motion sequence of each warp yarn and control the on / off power of the corresponding control valve according to the weaving motion sequence.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a jacquard machine according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of a jacquard machine according to an embodiment of the present invention during the weaving of double-sided webbing; Figure 3 This is a schematic diagram of the structure of a jacquard machine according to another embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of a jacquard machine according to another embodiment of the present invention during the weaving of double-sided webbing; Figure 5 This is a schematic diagram of the structure of a jacquard machine according to another embodiment of the present invention; Figure 6 This is a schematic diagram of the control yarn structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a jacquard faucet according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a control valve according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of a control valve arranged in an array according to an embodiment of the present invention; Figure 10 This is a flowchart of a control method according to an embodiment of the present invention; Figure 11 This is a flowchart of a control method according to an embodiment of the present invention; Figure 12 This is a flowchart of a control method according to an embodiment of the present invention; Figure 13 This is a flowchart of a control method according to an embodiment of the present invention; Figure 14 This is a flowchart of a control method according to an embodiment of the present invention; Figure 15 This is a flowchart of a control method according to an embodiment of the present invention; Figure 16 This is a flowchart of a control method according to an embodiment of the present invention; Figure 17 This is a flowchart of a control method according to an embodiment of the present invention; Figure 18 This is a flowchart of a control method according to an embodiment of the present invention.

[0018] Icon labels: Warp 100; First warp 101; Second warp 102; Upper warp layer 103; Middle warp layer 104; Lower warp layer 105; First shed 106; Second shed 107; Connecting yarn 110; Weft yarn 200; First weft yarn 201; Second weft yarn 202; Jacquard head 300; frame 310; control valve 320; connector 321; pulley block 322; first pulley 3221; second pulley 3222; pulley seat 3223; fixing part 323; first slider 324; second slider 325; first connecting rope 326; second connecting rope 327; electromagnetic coil 328; first cam 331; second cam 332; first shaft 340; first boom 351; second boom 352; second shaft 360; first lifting knife 371; second lifting knife 372; first sensor 381; second sensor 382; Mounting plate 400; Return spring 410; Control yarn 500; First control yarn 501; Second control yarn 502; Third control yarn 503; Heddle 510; Connecting part 511; Adjusting part 512; Heddle hole 513; Control rope 520; Heat shrink tubing 530; Guide plate 540; Weft weft insertion mechanism 600; first weft guide head 610; first weft guide hole 611; first weft needle 620; first tail hook 621; second weft guide head 630; second weft guide hole 631; second weft needle 640; second tail hook 641; reed 650; Clamping mechanism 700; upper clamping component 710; lower clamping component 720; Healing frame mechanism 800; woven frame 810; intermediate drive column 820; guide groove 821; control plate 830; control hole 831. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0021] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0022] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] A jacquard machine is a commonly used weaving system. Jacquard machines are typically used to manufacture woven products composed of interlaced warp and weft threads, such as elastic webbing with patterns, designs, or text.

[0024] Traditional jacquard machines can only weave single-layer ribbons. To weave double-sided ribbons, four times the number of control valves are needed, which inevitably increases the size of the jacquard head by a factor of two and significantly raises manufacturing costs. For example, if a single-layer ribbon is woven with N warp threads, the jacquard machine needs N heddles to control it. For double-sided ribbons of the same specification, at least 2N heddles are required. Each heddle relies on a control valve, but a single valve can only control the heddle's movement between upper and lower positions. To weave double-sided ribbons, the heddle needs to be controlled to move between three positions. Traditional jacquard machines need to be modified or redesigned to use two control valves and an added pulley mechanism to control the position of a single heddle. Therefore, a single-layer webbing with N warp threads only requires N control valves for weaving control. In contrast, a double-sided webbing with 2N warp threads requires at least 4N control valves for weaving control. Consequently, the cost of purchasing new equipment or modifying existing jacquard machines is quite high for webbing manufacturers to produce double-sided webbing, making it unsuitable for small-batch webbing production.

[0025] To address the aforementioned problems, the inventors conducted in-depth research on jacquard machines. By modifying the weaving process of double-sided webbing, the jacquard machine was made adaptable to the production needs of double-sided webbing, simplifying the structure of the jacquard head and significantly reducing modification costs. The technical solution of the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0026] Reference Figure 1As shown, a jacquard machine according to one embodiment of the present invention is used to weave multiple warp yarns 100 and multiple weft yarns 200 into a webbing, and is capable of outputting the webbing along the longitudinal direction. The jacquard machine of this embodiment includes components such as a jacquard head 300, a mounting plate 400, multiple control yarns 500, and a weft knitting mechanism 600. The jacquard head 300 is used to control the weaving of the warp yarns 100, and the weft knitting mechanism 600 is used to control the weft yarns 200. The jacquard head 300 and the weft knitting mechanism 600 can be driven by the same motor through a transmission mechanism. The transmission mechanism can realize the regular movement between some moving structures of the jacquard head 300 and the weft knitting mechanism 600. This transmission mechanism can include, but is not limited to, combinations of belts, worm gears, etc. Alternatively, the jacquard head 300 and the weft knitting mechanism 600 can also be driven by different motors, and the different motors can control the weaving sequence of the warp yarns 100 and the weft yarns 200 through a controller. Understandably, unwinding and feeding the warp yarns 100 and weft yarns 200 are common components of jacquard machines in order to achieve the weaving of the ribbon, and collecting the finished ribbon is also a common component of jacquard machines.

[0027] Reference Figure 1 , Figure 7 , Figure 8 and Figure 9 As shown, the jacquard head 300 includes a frame 310, and a cam mechanism, a boom mechanism, a knife-lifting mechanism, and a plurality of control valves 320 mounted on the frame 310. The plurality of control valves 320 are arranged in an array along the longitudinal and transverse directions on the frame 310. Each control valve 320 includes a connector 321 capable of controlled vertical movement, and each control valve 320 can control the connector 321 by the engagement of an electromagnet. In some embodiments, each control valve 320 is enclosed by a housing; for structural compactness, other embodiments enclose two control valves 320 in a single housing, which is not specifically limited here.

[0028] The frame 310 is used to mount and support the jacquard head 300 in the upper space of the jacquard machine. The cam mechanism includes a first cam 331 and a second cam 332. The first cam 331 and the second cam 332 are driven by a drive mechanism (not shown in the figure). The drive mechanism can be a belt drive mechanism, a chain drive mechanism, or a direct drive device such as a servo motor.

[0029] The first cam 331 and the second cam 332 are driven by a drive mechanism to achieve eccentric motion. The eccentricity of the first cam 331 and the second cam 332 are basically the same, and the eccentricity angles of the first cam 331 and the second cam 332 differ by 180°. That is, when the first cam 331 is at its highest point, the second cam 332 is at its lowest point, which facilitates synchronous control when weaving double-sided webbing. Alternatively, the eccentricity of the first cam 331 and the second cam 332 can also be different, as long as the difference is not too large. In this embodiment, the first cam 331 and the second cam 332 are driven by a first shaft 340 to achieve rotation.

[0030] The boom mechanism includes a first boom 351 and a second boom 352, which are respectively hinged to the frame 310. In this embodiment, the first boom 351 and the second boom 352 can rotate relative to a second shaft 360, which is connected to the frame 310. The rotation axis of the first boom 351 (i.e., the first axis) coincides with the rotation axis of the second boom 352 (i.e., the second axis). The first cam 331 is provided with a first connecting portion for connecting the first boom 351. The first boom 351 is driven by the movement of the first cam 331 to swing downward along the first axis. The swing angle range of the first boom 351 depends on the size of the eccentricity of the first cam 331. The larger the eccentricity, the larger the swing angle. Similarly, the second cam 332 is provided with a second connecting portion for connecting the second boom 352. The second boom 352 is driven by the movement of the second cam 332 to swing downward along the second axis.

[0031] The lifting mechanism includes multiple first lifting blades 371 and multiple second lifting blades 372. The multiple first lifting blades 371 are connected to a first lifting arm 351 and arranged at intervals along the extension direction of the first lifting arm 351. The multiple second lifting blades 372 are connected to a second lifting arm 352 and arranged at intervals along the extension direction of the second lifting arm 352. The multiple first lifting blades 371 and the multiple second lifting blades 372 are respectively connected to the first lifting arm 351 and the second lifting arm 352 via hinged arms. The multiple first lifting blades 371 can be driven by the first lifting arm 351 to reciprocate in the vertical direction, and the multiple second lifting blades 372 can be driven by the second lifting arm 352 to reciprocate in the vertical direction. For example, referring to… Figure 8As shown, the first lifting blade 371 and the second lifting blade 372 are elongated and extend laterally. Taking a group of multiple control valves 320 arranged in one of the laterally directions as an example, the first lifting blade 371 and the second lifting blade 372 are respectively arranged on the front and rear sides of the multiple control valves 320 in this group, enabling simultaneous control of the group of control valves 320. The reciprocating motion of the first lifting blade 371 and the second lifting blade 372 in the vertical direction, in conjunction with the control signals of the control valves 320, enables control of the vertical position of the connector 321. In this embodiment, each of the multiple control valves 320 arranged in the laterally direction has a matching first lifting blade 371 and a second lifting blade 372 arranged on both sides of the longitudinal direction, so in the longitudinal direction, the first lifting blade 371 and the second lifting blade 372 are arranged alternately.

[0032] To enable stable vertical movement of the first lifting blade 371 and the second lifting blade 372, two first lifting arms 351 are provided and spaced apart in the lateral direction. The first lifting blade 371 is connected between the two first lifting arms 351, allowing it to be controlled for stable horizontal vertical movement. Similarly, two second lifting arms 352 are provided and spaced apart in the lateral direction, allowing the second lifting blade 372 to be connected between them, enabling stable and horizontal vertical movement. This allows for more accurate control of the multiple horizontally arranged control valves 320. In some embodiments, the two ends of the first shaft 340 are respectively connected to first cams 331, and a second cam 332 is connected between the two first cams 331. The two second cams 332 are arranged close to their respective first cams 331. The two first lifting arms 351 are located outside the two second lifting arms 352.

[0033] Reference Figure 1 and Figure 6 As shown, in this embodiment, multiple control yarns 500 are arranged in an array along the longitudinal and transverse directions. The multiple control yarns 500 pass through the guide plate 540 to form an array structure, and the arrangement of the multiple control yarns 500 matches the positions of multiple control valves 320. Each control yarn 500 is connected to a connector 321, and each control valve 320 can control one warp yarn 100 individually.

[0034] Each control yarn 500 includes heddles 510, and each heddle 510 is threaded with a warp yarn 100. The process of the heddles 510 being driven to move in the up and down direction can drive the corresponding warp yarn 100 to move, thereby realizing weaving.

[0035] The mounting plate 400 is located below the multiple control yarns 500. The multiple control yarns 500 are fixed to the mounting plate 400 by a return spring 410. The end of the return spring 410 away from the mounting plate 400 is usually directly or indirectly installed to the heddle 510. The return spring 410 provides a downward elastic force to the heddle 510.

[0036] Reference Figure 1 and Figure 2 As shown, in this embodiment, the weft knitting mechanism 600 is used to weave the weft yarn 200 into multiple warp yarns 100 in the transverse direction in each weft cycle (i.e., the weaving cycle of each weft, the same below). The multiple warp yarns 100 are controlled by the heddle wire 510 to cross above and below the weft yarn 200, thereby realizing the weaving of the warp yarns 100 and the weft yarn 200.

[0037] Continue to refer to Figure 1 and Figure 2 To understand, in the process of weaving a ribbon using a jacquard machine according to one embodiment of the present invention, multiple warp yarns 100, driven by heddles 510, are conveyed along the longitudinal direction to form an upper warp layer 103, a middle warp layer 104, and a lower warp layer 105 in the vertical direction. The three layers of warp yarns 100 are formed because, during the weaving process, the position of each warp yarn 100 with a different weaving sequence may change or remain constant. Therefore, when the number of warp yarns 100 reaches a certain scale, warp layers are formed during the weaving process. In this embodiment, the middle warp layer 104 is located between the upper warp layer 103 and the lower warp layer 105 and is arranged approximately horizontally. The upper warp layer 103 is located above the middle warp layer 104 and is inclined upward relative to the horizontal plane. The lower warp layer 105 is located below the middle warp layer 104 and is inclined downward relative to the horizontal plane. Therefore, a first shed 106 is formed between the upper warp layer 103 and the middle warp layer 104, and a second shed 107 is formed between the lower warp layer 105 and the middle warp layer 104. A weft yarn 200 is woven into the first shed 106 and the second shed 107 respectively. A portion of the multiple control yarns 500 is configured as a first control yarn 501, and the warp yarn 100 connected to the first control yarn 501 is the first warp yarn 101. The first warp yarn 101 can move between the upper warp layer 103 and the middle warp layer 104. Another portion of the multiple control yarns 500 is configured as a second control yarn 502, and the warp yarn 100 connected to the second control yarn 502 is a second warp yarn 102, which is capable of moving between the middle warp layer 104 and the lower warp layer 105.

[0038] In some embodiments, in order to further increase the opening angle of the first shed 106 and the second shed 107, the first warp 101 is in a state of slightly inclined downward relative to the horizontal plane when it moves to the middle warp layer 104, and the second warp 102 is in a state of slightly inclined upward relative to the horizontal plane when it moves to the middle warp layer 104.

[0039] For demonstration purposes, Figure 1 The first warp 101 in the upper warp layer 103 is shown to be spaced in the vertical direction, the first warp 101 and the second warp 102 in the middle warp layer 104 are shown to be spaced in the vertical direction, and the second warp 102 in the lower warp layer 105 is shown to be spaced in the vertical direction.

[0040] Figure 2 A schematic diagram of the vertical layering of the upper webbing structure (including the first warp yarn 101 and the first weft yarn 201) and the lower webbing structure (including the second warp yarn 102 and the second weft yarn 202) of the double-sided webbing.

[0041] In this embodiment of the invention, each control yarn 500 is connected to a connector 321 of a control valve 320, enabling each control valve 320 to control one warp yarn 100. The multiple control yarns 500 arranged in an array along the longitudinal and transverse directions are divided into a first control yarn 501 and a second control yarn 502. The warp yarn 100 connected to the first control yarn 501 can move between the upper warp layer 103 and the middle warp layer 104, while the warp yarn 100 connected to the second control yarn 502 can move between the middle warp layer 104 and the lower warp layer 105. This, combined with the weft knitting mechanism 600 weaving in the weft yarn 200 in each weft cycle, achieves synchronous weaving of the upper and lower webbing structures. Furthermore, during the weaving process, the heddles 510 of the first control yarn 501 and the heddles 510 of the second control yarn 502 do not interfere with each other, ensuring the weaving effect of the double-sided webbing while improving its weaving efficiency. Additionally, this embodiment has low jacquard machine modification costs, reducing production costs.

[0042] Specifically, the eccentricity of the first cam 331 and the second cam 332 in this embodiment is improved compared to related jacquard machines, for example, reduced to 0.5 to 0.7 times that of the traditional method. This reduces the stroke of the jacquard head 300, allowing multiple control yarns 500 in the vertical direction to form a first shed 106 and a second shed 107 with sufficient opening size for weft insertion, preventing yarn breakage or misalignment. Furthermore, the first control yarn 501 and the second control yarn 502 respectively control the warp yarns 100 for weaving the upper and lower layer webbing structures, while the weft knitting mechanism 600 can orderly insert the weft yarns 200 for both the upper and lower layer webbing structures, achieving synchronous weaving of the upper and lower webbing structures without interference, thus improving the weaving efficiency of double-sided webbing. Moreover, the overall structure of the jacquard machine in this embodiment is more compact, and the synchronous weaving of the upper and lower webbing structures does not require the addition of a pulley mechanism, resulting in low modification costs.

[0043] Furthermore, the jacquard machine in this embodiment can be converted from a traditional jacquard machine at low cost, including but not limited to changing the size of the cam, changing the control yarn 500, and adjusting the control program. Therefore, the conversion from single-layer webbing production to double-sided webbing production is relatively simple, which is conducive to meeting the needs of enterprises to produce small batches and multiple varieties of webbing and improving production flexibility.

[0044] Reference Figure 1 and Figure 2 As shown, the weft knitting mechanism 600 is located downstream of the multiple control yarns 500 along the conveying direction of the warp yarns 100. Therefore, during the process of controlling the height of the heddle wires 510 by the control yarns 500, the multiple warp yarns 100 can form a shed at the position where the weft yarn 200 is woven into the weft knitting mechanism 600, facilitating the weft yarn 200 to be woven into the shed. The weft knitting mechanism 600 can weave a weft yarn 200 (hereinafter referred to as the first weft yarn 201) into the first shed 106 between the upper warp layer 103 and the middle warp layer 104 during the gaps in the movement of the corresponding first control yarn 501. In some embodiments, the first weft yarn 201 can weave two segments of weft yarn 200 in each weft cycle, for example, by introducing the weft yarn 200 in a rapier-like reciprocating manner. In other embodiments, the first weft yarn 201 can weave one segment of weft yarn 200 in each weft cycle, for example, by introducing the weft yarn 200 in an air-jet manner.

[0045] The weft knitting mechanism 600 can also weave another weft yarn 200 (hereinafter referred to as the second weft yarn 202) into the second shed 107 between the middle warp layer 104 and the lower warp layer 105 during the gaps in the movement of the corresponding second control yarn 502. The second weft yarn 202 can weave one or two weft yarns 200 in each weft cycle.

[0046] It is understandable that the first weft yarn 201 and the second weft yarn 202 can be woven into the shed simultaneously, or they can be woven into the corresponding sheds sequentially.

[0047] Reference Figure 1As shown, in this embodiment, the first weft yarn 201 and the second weft yarn 202 are woven into the corresponding shed simultaneously, and two segments of weft yarn 200 are woven in each weft cycle. The weft knitting mechanism 600 includes a first weft guide head 610, a first weft needle 620, a second weft guide head 630, and a second weft needle 640. The first weft guide head 610 and the second weft guide head 630 are arranged at intervals in the vertical direction. The first weft guide head 610 and the second weft guide head 630 are driven synchronously and can be driven together to swing back and forth in the horizontal direction. The first weft guide head 610 is provided with a first weft guide hole 611 for the first weft yarn 201 to pass through, and the second weft guide head 630 is provided with a second weft guide hole 631 for the second weft yarn 202 to pass through. The first weft needle 620 and the second weft needle 640 are arranged at intervals in the vertical direction. The first weft needle 620 and the second weft needle 640 are driven synchronously and can be driven together to swing in the longitudinal direction. The end of the first weft needle 620 is provided with a first tail hook 621 for hooking the bend of two sections of the first weft yarn 201, and the end of the second weft needle 640 is provided with a second tail hook 641 for hooking the bend of two sections of the second weft yarn 202.

[0048] The working process of the first weft guide head 610 and the first weft needle 620 is as follows: In each weft cycle, the first weft guide head 610 passes the first weft yarn 201 through the first shed 106 along the first direction (i.e., in the transverse direction from the initial direction of the first weft guide head 610 to the farthest end of its travel). After passing through the first shed 106, the two weft yarns 200 are hooked together by the first tail hook 621 of the first weft needle 620, and then pass through the first shed 106 again along the second direction (opposite to the second direction) to achieve reset, thereby enabling the two weft yarns 200 to be woven into multiple warp yarns 100. It can be understood that during the movement of the first weft guide head 610 along the first direction, the warp yarns 100 at positions not yet passed can still be driven up and down for weaving; during the movement of the first weft guide head 610 along the second direction, the warp yarns 100 at positions already passed can be driven up and down for weaving. Therefore, the weaving rhythm of the jacquard machine can be further improved, and the weaving efficiency can be increased.

[0049] Similarly, the working process of the second weft guide head 630 and the second weft needle 640 is as follows: In each weft cycle, the second weft guide head 630 passes the second weft yarn 202 through the second shed 107 along the first direction. After passing through the second shed 107, the two weft yarns 200 are hooked together by the second tail hook 641 of the second weft needle 640, and then pass through the second shed 107 again along the second direction to achieve a reset, thereby enabling the two weft yarns 200 to be woven into multiple warp yarns 100. It can be understood that during the movement of the second weft guide head 630 along the first direction, the warp yarns 100 at positions not yet passed can still be driven up and down for weaving; during the movement of the second weft guide head 630 along the second direction, the warp yarns 100 at positions already passed can be driven up and down for weaving. Therefore, the weaving rhythm of the jacquard machine can be further improved, increasing weaving efficiency.

[0050] Reference Figure 1 As shown, the weft knitting mechanism 600 also includes a reed 650, which can be driven to swing in the longitudinal direction. The front and rear limit positions of the reed 650 on the swing path can satisfy the following: when in the front limit position, the first weft guide head 610, the second weft guide head 630, the first weft needle 620, and the second weft needle 640 are in the reset position; when the reed 650 swings from back to front, it will not collide with the first weft guide head 610, the second weft guide head 630, and the first weft needle 620. Interference occurs between the first weft needle 620 and the second weft needle 640, thus enabling beating of the first weft yarn 201 and the second weft yarn 202. Simultaneously, the first weft needle 620 and the second weft needle 640 disengage, at which point the two segments of the first weft yarn 201 and the two segments of the second weft yarn 202 are woven into the webbing respectively. At the rear limit position, the reed 650 can prevent the first guide weft head 610 and the second guide weft head 630 from swinging in the lateral direction, ensuring that the weft insertion and beating actions do not interfere with each other. It should be noted that the reed 650, the first guide weft head 610, the second guide weft head 630, the first weft needle 620, and the second weft needle 640 can be controlled by a transmission mechanism to manage the forward and backward movement sequence of the corresponding components, or different motors can be used to control the forward and backward movement; no specific limitations are specified here.

[0051] Reference Figure 1 As shown, the jacquard machine also includes a clamping mechanism 700, which is located downstream of the reed 650 along the conveying direction of the weft yarn 200. The clamping mechanism 700 is situated at the intersection of the upper warp layer 103, the middle warp layer 104, and the lower warp layer 105. The clamping mechanism 700 is used to vertically press the woven webbing. The clamping mechanism 700 includes an upper clamping member 710 and a lower clamping member 720, which are used to press the webbing. When the reed 650 is in the front limit position, the weft yarn 200 can be woven into the webbing. Through cooperation with the clamping mechanism 700, the weaving structure of the webbing can be further tightened, reducing the probability of the webbing snagging. When the reed 650 is in the rear limit position, the first weft guide head 610 and the second weft guide head 630 swing in the space between the reed 650 and the clamping mechanism 700.

[0052] The double-sided webbing also includes a connecting yarn 110, which is used to tightly weave the upper and lower webbing structures, directly creating a structurally stable double-sided webbing. This eliminates the need for further manufacturing after the upper and lower webbing structures are woven. In the jacquard machine of this embodiment, the connecting yarn 110 and the warp yarn 100 are transported in the same direction, and can be understood as part of the warp yarn 100, also moving between the warp layers.

[0053] Reference Figure 3 and Figure 4As shown, another embodiment of the jacquard machine of the present invention further includes a heald frame mechanism 800 based on the structure of the above embodiment. The heald frame mechanism 800 is arranged upstream of the control yarn 500, that is, the heald frame mechanism 800 is located on the side of the control yarn 500 away from the weft knitting mechanism 600. The heald frame mechanism 800 includes a plurality of knitting frames 810 arranged side by side in the longitudinal direction. The knitting frames 810 can be driven by a central drive column 820 and move along a guide groove 821 extending in the vertical direction. Each knitting frame 810 can move a corresponding connecting yarn 110 in the vertical direction. Each knitting frame 810 has at least one control piece 830 through which the connecting yarn 110 passes. The control piece 830 is used to control the up and down movement of the connecting yarn 110. Specifically, there are multiple control plates 830, arranged laterally on the crossbeam of the weaving frame 810. Each control plate 830 has one or more control holes 831, and each control hole 831 controls the movement of one connecting yarn 110. Therefore, to simplify the control of the connecting yarns 110, the same control plate 830 can control the movement of multiple connecting yarns 110. The movement paths of the multiple connecting yarns 110 controlled by the multiple control plates 830 in the same weaving frame 810 are consistent. According to the weaving needs of the webbing, multiple control plates 830 can be arranged at intervals in the lateral direction to simultaneously weave multiple connecting yarns 110. It can be understood that multiple warp yarns 100 pass through the gaps between adjacent control plates 830, so that the up and down movement of the control plate 830 will not drive the movement of the warp yarns 100, and the control plate 830 will not interfere with the independent control of the warp yarns 100 by the control yarn 500. The number and arrangement of the control plates 830 can be adjusted according to actual needs.

[0054] For demonstration purposes, Figure 3 A schematic diagram illustrating the vertical layering of the upper webbing structure (including the first warp yarn 101 and the first weft yarn 201), the lower webbing structure (including the second warp yarn 102 and the second weft yarn 202), and the connecting yarn 110 of the double-sided webbing. Furthermore, Figure 3 The first warp 101 and connecting yarn 110 in the upper warp layer 103 are shown as being spaced apart in the vertical direction; the first warp 101, second warp 102, and connecting yarn 110 in the middle warp layer 104 are shown as being spaced apart in the vertical direction; and the second warp 102 and connecting yarn 110 in the lower warp layer 105 are shown as being spaced apart in the vertical direction. Similarly, Figure 5 The embodiments also employ a similar demonstration method.

[0055] The weaving frame 810 can move the corresponding warp yarns 100 between the first, second, and third positions. The second position is located between the first and third positions, and the first position is above the third position. The height between the first and second positions allows the weft knitting mechanism 600 to weave the first weft yarn 201, and the height between the second and third positions allows the weft knitting mechanism 600 to weave the second weft yarn 202. Therefore, the movement of the heald frame mechanism 800 and the weft knitting mechanism 600 are staggered. The movement of the heald frame mechanism 800 and the control yarn 500 can be synchronized. When the weaving frame 810 controls multiple connecting yarns 110 to move to the corresponding positions, the first guide weft head 610 is inserted through the upper shed between the first and second positions, and the second guide weft head 630 is inserted through the lower shed between the second and third positions. During the jacquard weaving process, multiple connecting yarns 110 can cross between the first weft yarn 201 and the second weft yarn 202, that is, the first weft yarn 201 and the second weft yarn 202 are interwoven and joined together through weaving, thereby achieving a stable connection between the upper webbing structure and the lower webbing structure.

[0056] Specifically, to reduce interference between the weft insertion action of the weft knitting mechanism 600 and the connecting yarns 110, this embodiment sets the first position near the plane of the upper warp layer 103, the second position near the plane of the middle warp layer 104, and the third position near the plane of the lower warp layer 105. Therefore, the shed formed between the multiple connecting yarns 110 facilitates the smooth insertion of the first weft guide 610 and the second weft guide 630, thereby facilitating the weaving of the first weft yarn 201 and the second weft yarn 202.

[0057] In some embodiments, the weaving of the warp yarns 100 in the non-jacquard portion of the webbing can also be achieved using a weaving frame 810. Specifically, the weaving paths or strokes of multiple warp yarns 100 are integrated and grouped. Multiple warp yarns 100 with the same path are controlled separately by multiple control plates 830 of the weaving frame 810, and multiple warp yarns 100 with different paths are controlled by different weaving frames 810. For example, warp yarns 100 that do not need to be woven into patterns, such as elastic warp yarns and heat-melting yarns, can be controlled using the weaving frame 810. In a specific embodiment, the total number of warp yarns 100 and connecting yarns 110 in the double-sided webbing is 900, of which 300 warp yarns 100 are needed for jacquard weaving. These need to be controlled by control yarns 500, while the other warp yarns 100 can be controlled by the weaving frame 810.

[0058] Reference Figure 5As shown, in another embodiment of the jacquard machine of the present invention, the remaining portion of the multiple control yarns 500 can be configured as a third control yarn 503, which replaces the function of the heald frame mechanism 800. Specifically, the third control yarn 503 can be controlled by the connector 321 of two adjacent control valves 320 in conjunction with pulleys. Its function is to move the corresponding connecting yarn 110 (also a yarn arranged along the conveying direction of the warp yarn 100) between the upper warp layer 103, the middle warp layer 104, and the lower warp layer 105 through the third control yarn 503, thereby weaving the connecting yarn 110 with the first weft yarn 201 and the second weft yarn 202 to achieve a stable connection between the two layers of double-sided webbing.

[0059] Reference Figure 1 and Figure 6 As shown, in this embodiment, the control yarn 500 further includes a control rope 520. One end of the control rope 520 is connected to the connector 321, and the other end is connected to the heddle wire 510. The heddle wire 510 includes a connecting part 511 and an adjusting part 512. The connecting part 511 forms a heddle hole 513 for the warp yarn 100 to pass through. The adjusting part 512 is located above the connecting part 511 and connected to the control rope 520. The adjusting part 512 can adjust the fixed position of the heddle wire 510 and the control rope 520, thereby adjusting the effective length of the control rope 520. For example, the adjusting part 512 is constructed as a hook. The end of the control rope 520 connected to the heddle wire 510 can be locked at the hook at this position according to the actual required length of the control rope 520, thereby adjusting the effective length of the control rope 520. By adjusting the effective length of the control rope 520, the movement trajectory of the heddle hole 513 is adjusted, thereby adjusting the movement trajectory of the warp yarn 100. Since the multiple control yarns 500 are arranged in an array, the movement trajectories of the corresponding heald holes 513 are also different. By adjusting the effective length of the control rope 520 of each control yarn 500, the movement interference between multiple healds 510 in the dense array can be reduced, and the situation where multiple healds 510 gather at the same height position and interlock can be reduced, effectively preventing the warp yarns 100 from interlacing. In some embodiments, the connecting part 511 may also have two or more heald holes 513, with each heald hole 513 passing through a warp yarn 100. The movement paths of all warp yarns 100 controlled on the connecting part 511 are consistent. This design makes the structure of the jacquard head 300 more compact.

[0060] To improve the connection reliability between the control rope 520 and the heddle wire 510, in this embodiment, a heat shrink tubing 530 is pre-inserted into the control rope 520. After the control rope 520 and the adjusting part 512 are tightened, the heat shrink tubing 530 is inserted into the mating part of the adjusting part 512 and the control rope 520, and hot air is used to heat and shape the heat shrink tubing 530 to tighten the adjusting part 512 and the control rope 520, effectively preventing the control rope 520 and the heddle wire 510 from separating.

[0061] Reference Figure 7 , Figure 8 and Figure 9 As shown, in this embodiment, the control valve 320 includes a connector 321, a pulley assembly 322, a fixing part 323, a first slider 324, and a second slider 325. The pulley assembly 322 includes a first pulley 3221 and a second pulley 3222, which are connected by a pulley seat 3223. The pulley seat 3223 can drive the pulley assembly 322 to move in the vertical direction, so that the first pulley 3221 and the second pulley 3222 can move in the vertical direction. The first slider 324 and the second slider 325 are located on both sides of the control valve 320 along the longitudinal direction. A first connecting rope 326 connects the first slider 324 and the second slider 325 and is wound around the first pulley 3221. A second connecting rope 327 connects the connector 321 and the fixing part 323 and is wound around the second pulley 3222. The fixing part 323 is fixedly connected to the control valve 320 or other fixed mechanism. Based on the above structure, the vertical position of the connector 321 is determined by the vertical position of the pulley assembly 322, and the position of the pulley assembly 322 is determined by the positions of the first slider 324 and the second slider 325.

[0062] The first slider 324 and the second slider 325 can move vertically respectively. The stopping or movement of the first slider 324 and the second slider 325 is achieved by driving the electromagnetic coil 328 inside the control valve 320. The electromagnetic coil 328 can achieve adsorption or release in both energized and de-energized states. The electromagnetic coil 328 can directly control the first slider 324 and the second slider 325. For example, the first slider 324 and the second slider 325 are provided with magnetic blocks or metal, or they are magnetic or metal themselves. However, the electromagnetic coil 328 can also control the first slider 324 and the second slider 325 indirectly. For example, the electromagnetic coil 328 controls the release or retraction of the first hook and the second hook. The first slider 324 and the second slider 325 are respectively provided with structures that cooperate with the first hook and the second hook. During the operation of the jacquard machine, the first slider 324 and the second slider 325 have three motion states: the first slider 324 and the second slider 325 are constrained to the upper limit position by the control valve 320; the first slider 324 and the second slider 325 move in opposite directions in the vertical direction; or one of the first slider 324 or the second slider 325 moves in the vertical direction while the other is constrained to the upper limit position by the control valve 320. When the first slider 324 moves in the vertical direction, the first lifting knife 371 can drive the first slider 324 to move up and down. When the second slider 325 moves in the vertical direction, the second lifting knife 372 can drive the second slider 325 to move up and down.

[0063] In this embodiment, when the first boom 351 is in a high position, the first boom 351 is arranged horizontally, the first lifting knife 371 is in a high position, and the first control yarn 501 is in a high position. In the longitudinal direction, the multiple first control yarns 501 in the high position are arranged at an angle upward.

[0064] When the first boom 351 is in a low position, the first boom 351 is arranged at an angle downwards, the first lifting knife 371 is in a low position, and the first control yarn 501 is in a low position. In the longitudinal direction, the multiple first control yarns 501 in the low position are arranged horizontally.

[0065] When the second boom 352 is in a high position, the second boom 352 is arranged horizontally, the second lifting knife 372 is in a high position, and the second control yarn 502 is in a high position. In the longitudinal direction, the multiple second control yarns 502 in the high position are arranged horizontally.

[0066] When the second boom 352 is in a low position, the second boom 352 is arranged at an angle downwards, the second lifting knife 372 is in a low position, and the second control yarn 502 is in a low position. In the longitudinal direction, the multiple second control yarns 502 in the low position are arranged at an angle downwards.

[0067] Continue to refer to Figure 8 and Figure 9 In this embodiment, when the control valve 320 is energized, the first slider 324 and the second slider 325 can move with the first lifting knife 371 and the second lifting knife 372, respectively. At this time, the first slider 324 and the second slider 325 are released. Since the connector 321 is connected to the control yarn 500, and the control yarn 500 is connected to the return spring 410, under the action of the return spring 410 and their own gravity, the first slider 324 and the second slider 325 have a downward tendency. During the downward movement of the first lifting knife 371 and the upward movement of the second lifting knife 372, the first slider 324 can smoothly descend with the first lifting knife 371, and the second slider 325 can smoothly rise under the action of the second lifting knife 372; during the upward movement of the first lifting knife 371 and the downward movement of the second lifting knife 372, the first slider 324 can smoothly rise under the action of the first lifting knife 371, and the second slider 325 can smoothly descend with the second lifting knife 372. In the above state, the height of pulley block 322 will not actually change, and the warp 100 controlled by control valve 320 will not move.

[0068] When the power is off, the control valve 320 causes the first slider 324 and the second slider 325 to move to the upper limit of their respective movement paths and then stop following the first lifting knife 371 and the second lifting knife 372. At this time, the first slider 324 and the second slider 325 are restricted to the upper limit of the control valve 320. When the first slider 324 is constrained to the upper limit, during the upward movement of the second slider 325, the pulley block 322 moves upward, and the warp yarn 100 controlled by the control valve 320 moves upward; or when the second slider 325 is constrained to the upper limit, during the upward movement of the first slider 324, the pulley block 322 moves upward, and the warp yarn 100 controlled by the control valve 320 moves upward.

[0069] When the second slider 325 is constrained to the upper limit position, the first slider 324 moves downward, and the warp 100 controlled by the control valve 320 moves downward; or when the first slider 324 is constrained to the upper limit position, the second slider 325 moves downward, and the warp 100 controlled by the control valve 320 moves downward.

[0070] When the first slider 324 and the second slider 325 are both constrained to the upper limit position, the height of the pulley block 322 does not change.

[0071] It should be noted that when the first slider 324 and the second slider 325 are both constrained to the upper limit position, when the control valve 320 switches from the de-energized state to the energized state, one of the first slider 324 and the second slider 325 is driven to move downward by the upward-moving first lifting knife 371 or the second lifting knife 372, while the other slider needs to be driven to move downward after the other lifting knife moves upward again.

[0072] In another embodiment of the present invention, the control valve 320 has two electromagnetic coils 328, which are used to control the first slider 324 and the second slider 325, respectively. When the first electromagnetic coil 328 and the second electromagnetic coil 328 are energized, the first slider 324 and the second slider 325 are released, and the warp yarn 100 does not move. When the first electromagnetic coil 328 is de-energized and the first slider 324 is fixed, the second electromagnetic coil 328 remains energized, the second slider 325 is released, and the warp yarn 100 moves downward. When it is necessary for the warp yarn 100 to not move, the first electromagnetic coil 328 is kept energized. When it is necessary for the warp yarn 100 to move upward, one electromagnetic coil 328 is kept holding the slider at the upper limit position, while the other electromagnetic coil 328 releases the slider and is in an upward moving state.

[0073] In some embodiments of the present invention, the jacquard machine further includes a control panel (not shown in the figure). The control panel can input weaving logic, which includes, but is not limited to, control logic for mechanisms such as the drive mechanism, control valve 320, weft knitting mechanism 600, and heald frame mechanism 800, thereby realizing the control of the jacquard machine. The control panel includes a controller, which receives the weaving motion sequence of each warp yarn 100 and controls the on / off state of the corresponding control valve 320 according to the weaving motion sequence, thereby controlling the movement of the warp yarn 100 to realize the weaving of the webbing. It is understood that the controller receives the weaving motion sequence in ways such as direct input from the control panel, input via USB flash drive, input via WIFI transmission, and input via Bluetooth transmission, etc., and is not specifically limited here.

[0074] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0075] Reference Figure 10 As shown, the control method of the weaving system in this embodiment of the invention is used to realize the weaving of double-sided webbing. The weaving system and its control method are described below using the jacquard machine of the above embodiment as an example.

[0076] In this embodiment, the control method of the jacquard machine includes the following steps: S1001: According to the weaving motion sequence of the warp yarn 100 and the weft yarn 200, control the movement of the first control yarn 501 in the vertical direction so that the corresponding first warp yarn 101 moves between the upper warp layer 103 and the middle warp layer 104; and control the movement of the second control yarn 502 in the vertical direction so that the corresponding second warp yarn 102 moves between the middle warp layer 104 and the lower warp layer 105.

[0077] Reference Figures 1 to 9To aid understanding, in this embodiment, the weaving sequence of warp yarns 100 and weft yarns 200 includes the front and rear positions of multiple warp yarns 100 in each weft cycle and the cross-movement logic of warp yarns 100 and weft yarns 200. The changes in the weaving sequence of warp yarns 100 and weft yarns 200 mainly originate from the weaving pattern, pattern, or text of the weave, such as the style, position, and frequency of the pattern. Generally, the patterns of the upper and lower layers of double-sided weave are mirror-symmetrical, but they can also be woven with different patterns for the upper and lower layers depending on the product requirements. The weaving sequence of warp yarns 100 and weft yarns 200 can be obtained by manually inputting the needlework diagram of the pattern or by analyzing the needlework diagram of the pattern through image recognition. After the controller of the jacquard machine obtains the weaving sequence of warp yarns 100 and weft yarns 200, it controls the operation of each control valve 320 and also controls the movement of the first cam 331 and the second cam 332, thereby controlling the vertical movement of the first lifting knife 371 and the second lifting knife 372. The first control yarn 501, under the combined action of the first lifting knife 371, the second lifting knife 372, and the control valve 320, can control the vertical movement of the first control yarn 501 and the vertical movement of the second control yarn 502. Specifically, the warp yarn 100 controlled by the first control yarn 501 is configured as the first warp yarn 101, and the warp yarn 100 controlled by the second control yarn 502 is configured as the second warp yarn 102. In coordination with the movement of the weft yarn 200 woven into the weft yarn by the weft knitting mechanism 600 in each weft cycle, the first warp yarn 101 is controlled to move between the upper warp layer 103 and the middle warp layer 104, thereby weaving the upper layer webbing structure, and the second warp yarn 102 is controlled to move between the middle warp layer 104 and the lower warp layer 105, thereby weaving the lower layer webbing structure. The upper and lower webbing structures can be controlled and woven synchronously without interfering with each other. The control yarns 500 arranged in the same array can be used to weave the upper and lower webbing structures, thus improving the manufacturing efficiency of double-sided webbing.

[0078] Understandably, within each weft weaving cycle, some of the multiple first warp yarns 101 are stationary in the upper warp layer 103, some are stationary in the middle warp layer 104, some move from the upper warp layer 103 to the middle warp layer 104, and some move from the middle warp layer 104 to the upper warp layer 103. Similarly, within each weft weaving cycle, some of the multiple second warp yarns 102 are stationary in the lower warp layer 105, some are stationary in the middle warp layer 104, some move from the lower warp layer 105 to the middle warp layer 104, and some move from the middle warp layer 104 to the lower warp layer 105.

[0079] Reference Figure 11 As shown, and in combination Figures 1 to 9 To aid understanding, the control method of a jacquard machine also includes the following steps: S1101: According to the weaving motion sequence, the weft knitting mechanism 600 is controlled to weave the first weft yarn 201 into the first shed 106 during the gap of the corresponding first control yarn 501 movement, and to weave the second weft yarn 202 into the second shed 107 during the gap of the corresponding second control yarn 502 movement.

[0080] In this embodiment, the weft knitting mechanism 600 is used to weave the first weft yarn 201 into the first shed 106 formed between the upper warp layer 103 and the middle warp layer 104, and simultaneously weave the second weft yarn 202 into the second shed 107 formed between the middle warp layer 104 and the lower warp layer 105. The first weft yarn 201 is woven into the upper webbing structure so that the upper webbing structure alone constitutes a stable webbing structure, and the second weft yarn 202 is woven into the lower webbing structure so that the lower webbing structure alone constitutes a stable webbing structure.

[0081] Because the upper and lower webbing structures complete weft insertion and beat-up synchronously within the same weaving cycle, the weaving tension, weft density distribution, and weaving rhythm of the two webbing structures remain consistent. This avoids problems such as uneven tension, weft density differences, and misalignment between the upper and lower layers caused by layered and step-by-step weaving. As a result, the double-sided webbing has a uniform upper and lower layer structure, accurate pattern alignment, and a stable overall structure.

[0082] Reference Figure 12 As shown, and in combination Figures 1 to 9 For clarity, the control valve 320 corresponding to the first control yarn 501 is the first control valve, and the control valve 320 corresponding to the second control yarn 502 is the second control valve. Step S1001: According to the weaving motion sequence, control the movement of the first control yarn 501 in the vertical direction and control the movement of the second control yarn 502 in the vertical direction, specifically including the following steps: S1201: According to the weaving motion sequence, the first control valve is energized and de-energized in each weft cycle to change the position of the first control yarn 501 between the upper warp layer 103 and the middle warp layer 104. The controller controls the electromagnetic coil 328 inside the first control valve, controlling the energization and de-energization of the electromagnetic coil 328 in each weft cycle, thereby controlling the electromagnetic coil 328's control over the first slider 324 and the second slider 325 of the first control valve.

[0083] When the first control valve is energized, the first slider 324 and the second slider 325 can move in tandem with the first lifting knife 371 and the second lifting knife 372, respectively, at which point the first slider 324 and the second slider 325 are released. During the downward movement of the first lifting knife 371 and the upward movement of the second lifting knife 372, the first slider 324 descends smoothly with the first lifting knife 371, and the second slider 325 rises smoothly under the influence of the second lifting knife 372. Similarly, during the upward movement of the first lifting knife 371 and the downward movement of the second lifting knife 372, the first slider 324 rises smoothly under the influence of the first lifting knife 371, and the second slider 325 descends smoothly with the second lifting knife 372. In this state, the height of the pulley block 322 does not actually change, and the first warp yarn 101 controlled by the first control valve does not move; at this time, the first warp yarn 101 remains stationary on the upper warp layer 103.

[0084] When the first control valve is de-energized, it causes the first slider 324 and the second slider 325 to move to the upper limit of their respective movement paths and then stop following the first lifting knife 371 and the second lifting knife 372. At this time, the first slider 324 and the second slider 325 are restricted to the upper limit of the first control valve. When the first slider 324 is constrained to the upper limit, during the upward movement of the second slider 325, the pulley group 322 moves upward, and the first warp yarn 101 controlled by the first control valve moves from the middle warp layer 104 to the upper warp layer 103; or when the second slider 325 is constrained to the upper limit, during the upward movement of the first slider 324, the pulley group 322 moves upward, and the first warp yarn 101 controlled by the first control valve moves from the middle warp layer 104 to the upper warp layer 103.

[0085] When the second slider 325 is constrained to the upper limit position, the first slider 324 moves downward, and the first warp 101 controlled by the first control valve moves from the upper warp layer 103 to the middle warp layer 104; or when the first slider 324 is constrained to the upper limit position, the second slider 325 moves downward, and the first warp 101 controlled by the first control valve moves from the upper warp layer 103 to the middle warp layer 104.

[0086] When the first slider 324 and the second slider 325 are both constrained to the upper limit position, the height of the pulley block 322 does not change, and at this time the first warp 101 is stationary on the upper warp layer 103.

[0087] S1202: Based on the weaving sequence, the second control valve is energized and de-energized in each weft cycle to change the position of the second control yarn 502 between the middle warp layer 104 and the lower warp layer 105. The controller controls the electromagnetic coil 328 inside the second control valve, controlling its energization and de-energization in each weft cycle, thereby controlling the electromagnetic coil 328's control over the first slider 324 and the second slider 325 of the second control valve. The control principle of the second control valve can be understood by referring to the description of the first control valve in any of the above embodiments; to avoid repetition, it will not be repeated here. The related technology requires each warp yarn 100 to reach three positions, therefore each warp yarn 100 requires two control valves 320 for control, resulting in four times the number of control valves 320 needed when weaving double-sided webbing compared to single-layer webbing. Moreover, the control valve 320 is also one of the largest and most expensive components in the jacquard head 300.

[0088] In this embodiment, each warp yarn 100 only needs to reach two positions. By dividing the warp yarns 100 into two groups, the first warp yarn 101 and the second warp yarn 102, and redistributing them vertically, each warp yarn 100 only requires one control valve 320 for control, significantly reducing the total number of control valves 320. Compared to related technologies, the number of control valves 320 is halved, reducing the cost of control valves 320 and lowering the failure rate. Each control valve 320 only needs to control the switching of two positions, eliminating the need for complex timing logic for coordinating two control valves 320, resulting in a simpler control algorithm and reduced debugging difficulty.

[0089] In addition, the volume of the control valve 320 installed inside the jacquard tap 300 is reduced, so the overall size of the jacquard tap 300 is significantly reduced, and the overall structure of the jacquard machine is more compact. Moreover, the jacquard tap 300 is mounted on top of the jacquard machine, and its weight is reduced, which reduces the load requirements of the overall jacquard machine and can further reduce the cost of the jacquard machine.

[0090] Reference Figure 13 As shown, step S1001: Based on the weaving sequence of the warp yarn 100 and the weft yarn 200, control the movement of the first control yarn 501 in the vertical direction and control the movement of the second control yarn 502 in the vertical direction. Before this, the following steps are also included: S1301: Level the vertical positions of the first control yarn 501 and the second control yarn 502. (Refer to...) Figures 1 to 9To aid understanding, in this embodiment, after the first control yarn 501 and the second control yarn 502 are leveled, during the weaving process of the double-sided webbing, multiple warp yarns 100 will form an upper warp layer 103, a middle warp layer 104, and a lower warp layer 105. The middle warp layer 104 is located on the horizontal plane, the upper warp layer 103 is located above the middle warp layer 104 and is inclined upward relative to the horizontal plane, and the lower warp layer 105 is located below the middle warp layer 104 and is inclined downward relative to the horizontal plane. Therefore, a first shed 106 is formed between the upper warp layer 103 and the middle warp layer 104, and a second shed 107 is formed between the lower warp layer 105 and the middle warp layer 104. Thus, the first shed 106 and the second shed 107 can be woven into by the first weft yarn 201 and the second weft yarn 202, respectively.

[0091] Reference Figure 14 As shown, step S1301: Leveling the positions of the first control yarn 501 and the second control yarn 502 in the vertical direction, specifically including the following steps: S1401: Obtain the first leveling signal, which is a signal that controls the first control valve to be energized.

[0092] S1402: Control the first control yarn 501 to move to the first leveling position according to the first leveling signal.

[0093] After the above steps, all the first control yarns 501 are stably maintained in the first leveling position. At this time, the jacquard machine is stopped, and the length of the control rope 520 corresponding to the first control yarn 501 is manually adjusted to adjust the position of the heald holes 513 of the healds 510 of all the first control yarns 501, so that the position of all the heald holes 513 is approximately in the horizontal plane, thereby completing the leveling of the first control yarns 501, that is, the leveling of the first warp yarns 101. The first leveling position corresponds to the height plane where the middle warp layer 104 is located, serving as the alignment reference for the first warp yarns 101 at the lower position.

[0094] S1403: Obtain the second leveling signal, which is a signal that controls the second control valve to be de-energized.

[0095] S1404: Control the second control yarn 502 to move to the second leveling position according to the second leveling signal.

[0096] After the above steps, all the second control yarns 502 are stably maintained in the second leveling position. At this time, the jacquard machine is stopped, and the length of the control rope 520 corresponding to the second control yarn 502 is manually adjusted to adjust the position of the heald holes 513 of the healds 510 of all the second control yarns 502, so that the position of all the heald holes 513 is approximately in the horizontal plane, thereby completing the leveling of the second control yarns 502, that is, the leveling of the second warp yarns 102. The second leveling position corresponds to the height plane where the middle warp layer 104 is located, serving as the alignment reference for the second warp yarns 102 at the high position.

[0097] After manual calibration, the jacquard machine is restarted. The first control yarn 501 and the second control yarn 502 can then move up and down based on the flush reference position, thereby ensuring that the first shed 106 and the second shed 107 are neat and stable. That is, the upper warp layer 103 of the multiple warp yarns 100 formed during the weaving process is basically in one plane at different weaving sequences, the middle warp layer 104 of the multiple warp yarns 100 is basically in one plane at different weaving sequences, and the lower warp layer 105 of the multiple warp yarns 100 is basically in one plane at different weaving sequences. Therefore, the first guide weft head 610 and the second guide weft head 630 can pass through smoothly, reducing the probability of yarn scraping and breakage.

[0098] Reference Figure 15 As shown, and in combination Figure 3 and Figure 4 To aid understanding, the control method of a jacquard machine also includes the following steps: S1501: Based on the weaving motion sequence of the connecting yarn 110, control the movement of the weaving frame 810 in the vertical direction to change the position of the connecting yarn 110 between the first position, the second position, and the third position.

[0099] In this embodiment, the weaving sequence of the connecting yarn 110 includes the front and back positions of multiple connecting yarns 110 in each weft cycle. The front and back positions of the connecting yarns 110 can obtain the movement of the connecting yarns 110. The process of each connecting yarn 110 moving in the first position, the second position and the third position can interweave and connect the first weft yarn 201 and the second weft yarn 202 into one, which solves the problem of separation and slippage between the double-layer webbing, thereby directly weaving a double-sided webbing product with a stable connection between the upper webbing structure and the lower webbing structure.

[0100] Reference Figure 3As shown, the shed height between the first position and the second position is configured to allow the first weft guide 610 to pass through, so that the first weft guide 610 can weave the first weft yarn 201 into the upper shed defined by the first position and the second position; the shed height between the second position and the third position is configured to allow the second weft guide 630 to pass through, so that the second weft guide 630 can weave the second weft yarn 202 into the lower shed defined by the second position and the third position.

[0101] The up-and-down movement of the knitting frame 810 is staggered in timing with the oscillating movements of the first weft guide 610 and the second weft guide 630. When the knitting frame 810 drives the connecting yarn 110 up and down, both the first weft guide 610 and the second weft guide 630 remain in their initial positions outside the shed. Once the knitting frame 810 has moved to its final position and stabilized the connecting yarn 110 in one of the three positions, both the upper and lower sheds are stationary. At this point, the first weft guide 610 travels through the upper shed between the first and second positions, and the second weft guide 630 travels through the lower shed between the second and third positions, respectively introducing the first weft yarn 201 and the second weft yarn 202. Because the knitting frame 810 directly drives the connecting yarn 110, their movements are synchronized in timing, ensuring that the positional changes of the connecting yarn 110 match the timing of the shed formation.

[0102] During the weaving process of the heald frame mechanism 800, the connecting yarn 110 participates in the interweaving of the upper webbing structure, the lower webbing structure, or both webbing structures by switching between the first position, the second position, and the third position. Specifically, within each weft cycle, each connecting yarn 110 can be in different motion states, including: stationary in the first position, stationary in the second position, stationary in the third position, moving from the first position to the second position, moving from the first position to the third position, moving from the second position to the first position, moving from the second position to the third position, moving from the third position to the second position, and moving from the third position to the first position. By changing the position of the connecting yarn 110 in each weft cycle, the connecting yarn 110 forms a shuttling connection path between the first weft yarn 201 and the second weft yarn 202, thereby interweaving the upper and lower webbing into one at the connection position, realizing the structural connection between the upper and lower webbing structures. Moreover, by changing the frequency of the switching position of the connecting yarn 110 (switching once every few weft cycles), this embodiment can flexibly adjust the density of the joints between the upper and lower layers of webbing, adapting to double-sided webbing products with different strength and feel requirements.

[0103] To further reduce motion interference between the first weft guide head 610, the second weft guide head 630, and the connecting yarn 110 during the weft insertion process, in this embodiment, the height of the first position corresponds to the height of the upper warp layer 103, the height of the second position corresponds to the height of the middle warp layer 104, and the height of the third position corresponds to the height of the lower warp layer 105. Thus, the connecting yarn 110 is on the same plane as the warp yarn 100 of the corresponding warp layer at each position, making the opening shapes of the upper and lower sheds neat and compatible with the first shed 106 and the second shed 107. This facilitates the smooth passage of the first weft guide head 610 and the second weft guide head 630, thereby ensuring the smooth weaving of the first weft yarn 201 and the second weft yarn 202.

[0104] Furthermore, multiple warp yarns 100 form an upper warp layer 103, a middle warp layer 104, and a lower warp layer 105 in the vertical direction. The lower position of the first warp yarn 101 and the upper position of the second warp yarn 102 both correspond to the middle warp layer 104. Since the movement range of the first warp yarn 101 is between the upper warp layer 103 and the middle warp layer 104, and the movement range of the second warp yarn 102 is between the middle warp layer 104 and the lower warp layer 105, the movement spaces of the first warp yarn 101 and the second warp yarn 102 are distributed in upper and lower layers with the middle warp layer 104 as the boundary, and their movement paths do not overlap in the vertical direction. Therefore, the first warp yarn 101 and the second warp yarn 102 will not cross paths during their respective up and down movements, avoiding problems such as yarn snagging and breakage caused by the warp yarns 100 crossing and entanglement, thus improving the reliability of the weaving process.

[0105] Moreover, compared to the scheme where the upper shed of the upper webbing structure and the lower shed of the lower webbing structure are staggered in the vertical direction, the opening size of the first shed 106 and the second shed 107 in this embodiment is larger, and there is no interference between the three warp layers.

[0106] Furthermore, the small vertical distance between the first shed 106 and the second shed 107 results in a smaller distance between the first weft yarn 201 and the second weft yarn 202. This shortens the travel distance required for the connecting yarn 110, which connects the upper and lower layers of webbing, to move up and down between the first weft yarn 201 and the second weft yarn 202. The connecting yarn 110 takes longer to complete its position change within each weft cycle, and its movement speed and acceleration are lower. This not only improves the stability of the connecting yarn 110's movement and reduces yarn breakage, but also further enhances weaving speed and efficiency.

[0107] Reference Figure 16 As shown, step S1001: Based on the weaving sequence of the warp yarn 100 and the weft yarn 200, control the movement of the first control yarn 501 in the vertical direction and control the movement of the second control yarn 502 in the vertical direction. Before this, the following steps are also included: S1601: Obtain the pattern information of the webbing and determine the weaving sequence of each warp yarn 100 and each weft yarn 200 based on the pattern information.

[0108] In this embodiment, when weaving double-sided webbing, the pattern information includes an upper pattern, a lower pattern, and a splicing method. The pattern information can be library data pre-stored in the storage unit, a pattern file input through an external interface, or pattern parameters obtained through image scanning and recognition. The controller parses the pattern information. For the upper pattern, it is mapped to the interweaving structure of the first warp yarn 101 and the first weft yarn 201; for the lower pattern, it is mapped to the interweaving structure of the second warp yarn 102 and the second weft yarn 202; and for the splicing method, it is mapped to the splicing structure of the connecting yarn 110 with the first weft yarn 201 and the second weft yarn 202. Based on the mapped structure, the target position of each warp yarn 100 within each weft cycle is determined weft by weft, generating the corresponding weaving motion sequence of the warp yarn 100 and the connecting yarn 110. The weaving sequence of the first control yarn 501 includes the timing and position of switching between the upper warp layer 103 and the middle warp layer 104; the weaving sequence of the second control yarn 502 includes the timing and position of switching between the middle warp layer 104 and the lower warp layer 105; and the weaving sequence of the connecting yarn 110 includes the timing and position of switching between the first, second, and third positions. Based on the weaving sequence of the warp yarn 100 and the weft yarn 200 parameters in the pattern information, the weft insertion sequence of the weft yarn 200 is generated. The weft insertion sequence of the weft yarn 200 includes the weft insertion start time, weft insertion speed, and weft insertion stroke of the first weft guide head 610 and the second weft guide head 630 within each weft cycle. The weft insertion sequences of the first weft yarn 201 and the second weft yarn 202 correspond to the stationary timing of the first shed 106 and the upper shed, and the second shed 107 and the lower shed, respectively, ensuring that the weft insertion action is completed within the time it takes for the shed to stabilize. The warp yarn 100 weaving motion sequence and the weft yarn 200 insertion sequence are integrated and matched with the motion parameters of other mechanisms to form the control logic of the jacquard machine, so that all mechanisms can operate collaboratively under the same timing reference.

[0109] Reference Figure 17 As shown, and in combination Figures 1 to 9 To aid understanding, the control method in this embodiment includes the following steps: S1701: Obtain the position signals of the first cam 331 and the second cam 332.

[0110] S1702: Control the first control valve to operate according to the position signal of the first cam 331.

[0111] S1703: Control the second control valve to operate according to the position signal of the second cam 332.

[0112] Specifically, the first sensor 381 can acquire the position signal of the first cam 331, which corresponds to the signal that the first blade lifter 371 is in a low position. The second sensor 382 can acquire the position signal of the second cam 332, which corresponds to the signal that the second blade lifter 372 is in a low position.

[0113] Since the eccentricity of the first cam 331 and the second cam 332 is the same and their angles differ by 180°, by installing a sensor 311 on the end of the frame 310 connected to the first shaft 340 outside the second cam 332, and installing the first sensor 381 and the second sensor 382 at corresponding positions on the frame 310, the structure can be simplified and the structural compactness improved. When the controller receives the position signal of the first cam 331, it controls the first control valve to be energized or de-energized, thereby controlling the first control yarn 501, thus achieving precise control of the movement of the first warp yarn 101. When the controller receives the position signal of the second cam 332, it controls the second controller to be energized or de-energized, thereby controlling the second control yarn 502, thus achieving precise control of the movement of the second warp yarn 102.

[0114] Reference Figure 18 As shown, and in combination Figures 1 to 9 To aid understanding, a control method according to a specific embodiment of the present invention includes the following steps: S1801: Level the positions of the first control yarn 501 and the second control yarn 502 in the vertical direction.

[0115] S1802: According to the weaving motion sequence, control the power on and off of the first control valve in each weft cycle to change the position of the first control yarn 501 between the upper warp layer 103 and the middle warp layer 104.

[0116] S1803: According to the weaving motion sequence, control the power on and off of the second control valve in each weft cycle to change the position of the second control yarn 502 between the middle warp layer 104 and the lower warp layer 105.

[0117] S1804: According to the weaving motion sequence, the weft knitting mechanism 600 is controlled to weave the first weft yarn 201 into the first shed 106 during the gap of the corresponding first control yarn 501 movement, and to weave the second weft yarn 202 into the second shed 107 during the gap of the corresponding second control yarn 502 movement.

[0118] It is understood that the specific control process and structural principles in the implementation process of this embodiment can be understood by referring to the above embodiments. In order to avoid repetition, they will not be repeated here.

[0119] Based on the control methods of the knitting system in the above embodiments, the following presents various embodiments of the knitting system, control device, computer-readable storage medium, and computer program product of the present invention.

[0120] This invention provides a control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the control method of the knitting system as described in any of the above embodiments. An example is provided using a processor and a memory. The processor and memory can be connected via a bus or other means.

[0121] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the controller via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0122] In the controller of this embodiment, the processor can be used to call the control program stored in the memory, thereby implementing the control method of the knitting system described above. Specifically, the non-transitory software program and instructions required to implement the control method of the knitting system described above are stored in the memory, and when executed by the processor, the control method of the knitting system described above is executed.

[0123] It should be noted that, since the controller of this embodiment of the invention can execute the control method of the knitting system of any of the above embodiments, the specific implementation method and technical effects of the controller of this embodiment of the invention can be referred to the specific implementation method and technical effects of the control method of the knitting system of any of the above embodiments.

[0124] This invention provides a knitting system including the control device of any of the above embodiments. Since the knitting system of this invention includes the control device of any of the above embodiments, the specific implementation methods and technical effects of the knitting system of this invention can be referenced to the specific implementation methods and technical effects of the control device of any of the above embodiments.

[0125] This invention also provides a computer-readable storage medium storing computer-executable instructions for executing the control method of the knitting system described above.

[0126] It should be noted that, since the computer-readable storage medium of the present invention can execute the control method of the knitting system of any of the above embodiments, the specific implementation and technical effects of the computer-readable storage medium of the present invention can be referred to the specific implementation and technical effects of the control method of the knitting system of any of the above embodiments.

[0127] This invention provides a computer program product, including a computer program or computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium and executes the computer program or computer instructions, causing the computer device to perform a control method for a knitting system as described in any of the above embodiments.

[0128] It should be noted that, since the computer program product of this embodiment can execute the control method of the knitting system of any of the above embodiments, the specific implementation method and technical effect of the computer program product of this embodiment can be referred to the specific implementation method and technical effect of the control method of the knitting system of any of the above embodiments.

[0129] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

Claims

1. A jacquard machine, used to weave multiple warp yarns and multiple weft yarns into a ribbon and output it along the longitudinal direction, characterized in that, include: A jacquard knitting machine includes a frame, and a cam mechanism, a boom mechanism, a knife-lifting mechanism, and multiple control valves mounted on the frame. The control valves are arranged in an array along a longitudinal and transverse direction. Each control valve includes a connector capable of controlled vertical movement. The cam mechanism includes a first cam and a second cam, which are driven to achieve eccentric movement. The boom mechanism includes a first boom and a second boom. The first boom is hinged to the frame and has a first axis. The first boom is configured to swing along the first axis under the drive of the first cam's movement. The second boom is hinged to the frame and has a second axis. The arm is configured to swing along the second axis under the drive of the movement of the second cam; the lifting mechanism includes a plurality of first lifting knives connected to the first arm and a plurality of second lifting knives connected to the second arm, the plurality of first lifting knives being spaced apart along the extension direction of the first arm and being driven by the first arm to reciprocate in the vertical direction, the plurality of second lifting knives being spaced apart along the extension direction of the second arm and being driven by the second arm to reciprocate in the vertical direction, the first lifting knives and the second lifting knives being respectively arranged on both sides of the corresponding control valve along the longitudinal direction and cooperating with the control valve to control the position of the connector in the vertical direction; Multiple control yarns are arranged in an array along the longitudinal and transverse directions. Each control yarn is connected to a connector. Each control yarn includes a heald, and each heald is threaded with a warp yarn. A mounting plate is located below the plurality of control yarns, which are fixed to the mounting plate by a return spring. A weft weaving mechanism for weaving the weft yarn into multiple warp yarns in the transverse direction during each weft cycle; In this configuration, multiple warp yarns are arranged to form an upper warp layer, a middle warp layer, and a lower warp layer in the vertical direction during the longitudinal conveying process. A portion of the control yarns are configured as first control yarns, allowing the warp yarns connected to the first control yarns to move between the upper warp layer and the middle warp layer. Another portion of the control yarns are configured as second control yarns, allowing the warp yarns connected to the second control yarns to move between the middle warp layer and the lower warp layer.

2. The jacquard machine according to claim 1, characterized in that: The weft knitting mechanism is located downstream of the multiple control yarns along the transport direction of the warp yarns. The weft knitting mechanism is configured to weave a weft yarn into a first shed between the upper warp layer and the middle warp layer during the gap of the corresponding first control yarn movement, and to weave another weft yarn into a second shed between the middle warp layer and the lower warp layer during the gap of the corresponding second control yarn movement.

3. The jacquard machine according to claim 2, characterized in that: The weft knitting mechanism includes a first weft guide head, a first weft needle, a second weft guide head, and a second weft needle. The first and second weft guide heads are driven to swing in the transverse direction, and the first and second weft needles are driven to swing in the longitudinal direction. The first weft guide head is configured to pass one weft yarn through the first shed in a first direction during each weft cycle, and after being hooked by the first weft needle, pass through the first shed in a second direction to achieve a reset. The first and second directions are opposite. The second weft guide head is configured to pass another weft yarn through the second shed in the first direction during each weft cycle, and after being hooked by the second weft needle, pass through the second shed in the second direction to achieve a reset.

4. The jacquard machine according to claim 3, characterized in that: The weft knitting mechanism also includes a reed, which is driven to swing in the longitudinal direction and is configured to beat the weft yarn after the first weft guide head and the second weft guide head are reset.

5. The jacquard machine according to claim 4, characterized in that: The jacquard machine also includes a clamping mechanism located downstream of the reed along the conveying direction of the weft yarn. The clamping mechanism is used to press the woven ribbon vertically.

6. The jacquard machine according to any one of claims 1 to 5, characterized in that: The webbing also includes connecting yarns; The jacquard machine also includes a heald frame mechanism, which is arranged upstream of the control yarn. The heald frame mechanism includes multiple parallel weaving frames that are each capable of moving vertically to the corresponding connecting yarn. The weaving frames can drive the corresponding warp yarn to move between a first position, a second position, and a third position. The second position is located between the first position and the third position, and the first position is located above the third position. The height between the first position and the second position is sufficient for the weft knitting mechanism to weave in one weft yarn, and the height between the second position and the third position is sufficient for the weft knitting mechanism to weave in another weft yarn.

7. The jacquard machine according to claim 1, characterized in that: The control yarn also includes a control rope, one end of which is connected to the connector and the other end of which is connected to the heald. The heald includes a linking part and an adjusting part. The linking part has heald holes through which the warp yarn passes. The adjusting part is located above the linking part and is connected to the control rope. The adjusting part is configured to adjust the fixed position of the heald and the control rope.

8. The jacquard machine according to claim 1, characterized in that: The control valve further includes a pulley assembly, a fixing part, a first slider, and a second slider. The pulley assembly includes a first pulley and a second pulley. The first slider and the second slider are respectively located on both sides of the control valve along the longitudinal direction and can move in the vertical direction respectively. A first connecting rope is connected between the first slider and the second slider and is wound around the first pulley. A second connecting rope is connected between the connector and the fixing part and is wound around the second pulley. The first lifting blade is configured to drive the first slider to move in the vertical direction, and the second lifting blade is configured to drive the second slider to move in the vertical direction.

9. The jacquard machine according to claim 8, characterized in that: The control valve is configured such that when energized, the first slider and the second slider can follow the first and second lifting blades respectively, and when de-energized, the first slider and the second slider move to the upper limit of their respective movement paths and then stop following the first and second lifting blades.

10. The jacquard machine according to claim 9, characterized in that: The jacquard machine includes a control panel, which includes a controller configured to receive the weaving motion sequence of each warp yarn and control the power supply of the corresponding control valve according to the weaving motion sequence.

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