Circular knitting machine and control system thereof

Abstract

The invention provides a circular knitting machine and a control system thereof, and relates to the field of circular knitting machines, the circular knitting machine comprises a knitting main machine and automatic thread changing equipment, the automatic thread changing equipment comprises a material changing box, a first opening is formed in the top of the peripheral side, a storage space is formed in the material changing box, the storage space communicates with the first opening, and the storage space is used for storing new knitting threads; the driving mechanism is arranged in the storage space; the wire changing device is arranged on the side, provided with the first opening, of the material changing box and comprises a shell, a first sliding rail, a wire pulling mechanism and a wire combining mechanism; the first sliding rail is arranged in the shell; the wire pulling mechanism is movably arranged at the end, close to the second opening, of the first sliding rail. The wire combining mechanism is arranged in the shell; the thread pulling assembly is used for pulling the new weaving threads in the material changing box into the thread combining mechanism. The thread changing device has the beneficial effects that the thread pulling mechanism can extend into the material changing box to pull new weaving threads and convey the new weaving threads into the thread combining assembly, and the thread combining assembly firstly cuts off old weaving threads so as to complete thread changing of the new weaving threads and the old weaving threads.

Description

Technical Field

[0001] The invention relates to the field of circular knitting machines, and in particular to a circular knitting machine and a control system thereof. Background Art

[0002] Circular knitting machines are a type of equipment used to make fabrics and are now widely used in the knitting industry. Circular knitting machines weft-knit the threads to make fabrics, but when the threads are used up, the fabrics need to be replaced, which is usually done manually. First, the old threads are removed, and then one end of the new thread is knotted with the tail end of the old thread, so that the new thread and the old thread are connected together.

[0003] The existing thread changing method is relatively cumbersome, requiring the knitting machine to be stopped to change the thread, and requiring high manual proficiency. Therefore, it is necessary to develop a more convenient thread changing device. Summary of the invention

[0004] Based on this, in order to solve the problem that the existing circular knitting machine has a complicated line change, the present invention provides a circular knitting machine and a control system thereof, and the specific technical scheme thereof is as follows:

[0005] In one aspect, a circular knitting machine comprises a knitting main machine and an automatic thread changing device, wherein the automatic thread changing device comprises:

[0006] A material changing box, wherein a first opening is provided on the top of the peripheral side, and a storage space is provided inside the material changing box, wherein the storage space is communicated with the first opening, and the storage space is used to store new weaving yarn;

[0007] A driving mechanism, disposed in the storage space, for driving the new yarn and the old yarn to move in the storage space;

[0008] A wire changing device is arranged on the side of the material changing box where the first opening is opened, comprising a shell, a first slide rail, a wire pulling mechanism and a wire closing mechanism, wherein the two ends of the shell are respectively provided with a second opening and a third opening for the weaving wire to pass through, and the second opening corresponds to the first opening; the first slide rail is arranged inside the shell; the wire pulling mechanism is movably arranged at one end of the first slide rail close to the second opening; the wire closing mechanism is arranged inside the shell, and is used to cut off the old weaving wire and connect the new weaving wire with the old weaving wire;

[0009] The wire pulling assembly is used to pull the new weaving wire in the material changing box into the wire closing mechanism.

[0010] In some embodiments, the wire pulling mechanism comprises:

[0011] a second slide rail, slidably disposed on the first slide rail, wherein a portion of the second slide rail moves along the first slide rail through the second opening to the first opening;

[0012] A clamping assembly is slidably arranged on the second slide rail, and the working end of the clamping assembly faces the second opening. The working end of the clamping assembly can be rotated relative to the clamping assembly from facing the second opening to facing the third opening. The clamping assembly cooperates with the second slide rail to the first opening to clamp the new weaving thread.

[0013] In some embodiments, the gripping assembly comprises:

[0014] A base is slidably arranged on the second slide rail, a sleeve is arranged on the top, and a first tooth is arranged on the inner wall of the sleeve;

[0015] A rotating member is arranged in the sleeve, and a second tooth matching the first tooth is arranged at the connection between the outer wall of the rotating member and the sleeve, and the rotating member can rotate relative to the base;

[0016] A clamping member, arranged on the rotating member, for clamping new weaving thread;

[0017] The first driving member is arranged in the base, and the driving end of the first driving member is meshed with the second tooth of the rotating member, so as to drive the rotating member to rotate relative to the base.

[0018] In some embodiments, the wire changing device further comprises a guide roller, the guide roller is arranged on the first slide rail, the side of the guide member facing the second opening is a wire pulling mechanism, and the side of the guide member facing the third opening is a wire closing mechanism;

[0019] An escape space is provided in the middle of the clamping member, and when the rotating member drives the clamping member to rotate to the line closing mechanism, the guide roller passes through the escape space.

[0020] In some embodiments, the thread closing mechanism includes a wiring assembly, which includes a moving part and a wiring assembly. The moving part is movably arranged on the first slide rail, and the wiring assembly is arranged on the moving part. The wiring assembly is opened and closed at one end of the moving part, and cooperates with the wire pulling mechanism to clamp the new wire.

[0021] In some embodiments, the line closing mechanism further includes a line closing component including:

[0022] A separation piece, arranged on the inner wall of the housing close to the wiring assembly and corresponding to the wiring piece in the vertical direction, for cutting off the old weaving wire;

[0023] A thread closing piece is retractably arranged at the top of the inner wall of the shell, and a liquid flow channel is arranged inside. When the thread closing piece is retracted, the working end of the thread closing piece contacts the old weaving thread and the new weaving thread in sequence;

[0024] A liquid storage member, disposed on the outer wall of the housing and communicated with the liquid flow channel;

[0025] The adhesive spray head is arranged in the working end of the thread joining member, is connected with the liquid storage member through the liquid flow channel, and is used for bonding the old weaving thread and the new weaving thread.

[0026] In some embodiments, a protrusion is provided in the middle of the material changing box, and the protrusion and the side of the material changing box with a first opening together form a storage space; the raised table top and the top of the material changing box together form a first space, and the first space is used to park the old weaving wire to cooperate with the wire pulling mechanism to clamp the new weaving wire.

[0027] In some embodiments, a fourth opening is provided on the top of the material changing box, and the fourth opening corresponds to the storage space and is used for placing new weaving yarn into the storage space.

[0028] In some embodiments, a mobile line-changing component is further included, wherein the mobile line-changing component includes:

[0029] Two third slide rails are arranged on two adjacent sides of the first opening of the material changing box and correspond to the first opening in the horizontal direction;

[0030] A plurality of telescopic parts are respectively arranged on the two third slide rails, the plurality of telescopic parts correspond to each other, the telescopic parts are slidably connected to the third slide rails, and the telescopic parts are used to fix new weaving threads when they are in an extended state.

[0031] On the other hand, a control system of a circular knitting machine includes a host machine and all the technical features of the circular knitting machine, and its control process is:

[0032] S10, controlling the second slide rail to move toward the material changing box, and controlling the gripping assembly to move toward the material changing box;

[0033] S20, controlling the telescopic rod to carry the old weaving thread and move along the third slide rail to the first space away from the first opening, and controlling the driving mechanism to rise in the storage space to push the new weaving thread to the first opening;

[0034] S30, controlling the clamping assembly to clamp the new weaving thread, and controlling the clamping assembly and the second slide rail to move toward the guide roller;

[0035] S40, controlling the rotating member to rotate to the wiring assembly, and controlling the wiring assembly to clamp the new weaving wire;

[0036] S50, controlling the wiring assembly to move away from the material changing box, and controlling the wire closing member to extend and retract to contact the old wire and the new wire in sequence;

[0037] S60, controlling the separation element to cut off the old weaving thread, and controlling the adhesive spray head to spray the adhesive substance;

[0038] S70, controlling the telescopic member holding the old yarn to move back to the first opening, and controlling the thread closing member to retract.

[0039] The beneficial effect of this solution is that a driving mechanism is provided inside the material changing box for conveying the new weaving wire in the storage space to the first opening, and conveying the old weaving wire. When the wire is closed, the wire closing mechanism connects the old weaving wire with the new weaving wire. The wire pulling mechanism can extend into the material changing box to pull the new weaving wire, and convey the new weaving wire to the wire closing assembly. The wire closing assembly first cuts the old weaving wire, and then connects the broken end of the old weaving wire with the thread end of the new weaving wire to complete the wire changing of the new weaving wire and the old weaving wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0041] Figure 1 is a schematic structural diagram of a circular knitting machine according to an embodiment of the present invention;

[0042] Figure 2 is a schematic cross-sectional structural diagram of a material changing box according to an embodiment of the present invention;

[0043] Figure 3 is a structural schematic diagram of a mobile line-changing assembly according to an embodiment of the present invention;

[0044] Figure 4 is a structural schematic diagram of a wire closing mechanism according to an embodiment of the present invention;

[0045] Figure 5 It is a schematic diagram of a line changing process of an automatic line changing device of a circular knitting machine according to an embodiment of the present invention;

[0046] Figure 6 It is a schematic diagram of a line changing process of an automatic line changing device of a circular knitting machine according to an embodiment of the present invention;

[0047] Figure 7 It is a schematic diagram of a line changing process of an automatic line changing device of a circular knitting machine according to an embodiment of the present invention;

[0048] Figure 8 It is a schematic diagram of a line changing process of an automatic line changing device of a circular knitting machine according to an embodiment of the present invention;

[0049] Fig. 9 It is a flow chart of a control system of a circular knitting machine according to an embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 1. Material changing box; 11. First opening; 12. Storage space; 13. Protrusion; 14. First space; 15. Second space; 16. Fourth opening; 2. Driving mechanism; 3. Wire changing device; 31. Shell; 311. Second opening; 312. Third opening; 32. First slide rail; 33. Wire pulling mechanism; 331. Second slide rail; 332. Clamping assembly; 3321. Base; 3322. Rotating member; 3323. Clamping member; 3324. Avoiding space; 34. Wire closing mechanism; 341. Wiring assembly; 3411. Moving member; 3412. Wiring member; 342. Wire closing assembly; 3421. Separating member; 3422. Wire closing member; 3423. Liquid storage member; 35. Guide roller; 4. Wire changing assembly; 41. Third slide rail; 42. Telescopic member; 100. New weaving thread; 200. Old weaving thread. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0053] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0055] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0056] On the one hand, if Figures 1 to 9 As shown, a circular knitting machine in one embodiment of the present invention comprises:

[0057] The material changing box 1 has a first opening 11 on the top of the peripheral side, and a storage space 12 is provided inside the material changing box 1. The storage space 12 is communicated with the first opening 11, and the storage space 12 is used to store new weaving yarn 100;

[0058] The driving mechanism 2 is arranged in the storage space 12 and is used to drive the new yarn 100 to move in the storage space 12;

[0059] The wire changing device 3 is arranged on the side of the material changing box 1 where the first opening 11 is opened, and includes a housing 31, a first slide rail 32, a wire pulling mechanism 33 and a wire closing mechanism 34. The two ends of the housing 31 are respectively provided with a second opening 311 and a third opening 312 for the weaving wire to pass through, and the second opening 311 corresponds to the first opening 11; the first slide rail 32 is arranged inside the housing 31; the wire pulling mechanism 33 is movably arranged at one end of the first slide rail 32 close to the second opening 311; the wire closing mechanism 34 is arranged inside the housing 31, and is used to cut off the old weaving wire 200 and connect the new weaving wire 100 with the old weaving wire 200;

[0060] The wire pulling assembly is used to pull the new weaving wire 100 in the material changing box 1 into the wire closing mechanism 34 .

[0061] In some embodiments, the storage space 12 inside the material change box 1 can store new threads 100, and the new threads 100 enter the circular knitting machine through the first opening 11 and the thread change device 3. When the thread needs to be replaced, the driving mechanism 2 drives the new thread 100 to move to the first opening 11, so that the thread change device 3 can clamp the new thread 100. The thread change device 3 will cut off the old thread 200 and splice the new thread 100 and the old thread 200, so that the circular knitting machine can complete the thread change process without stopping. Specifically, the new thread 100 is driven by the driving mechanism 2 to approach the first opening 11, and the wire pulling mechanism 33 slides along the first slide rail 32 toward the material change box 1, thereby clamping the new thread 100. At this time, the old thread 200 passes through the first opening 11, the second opening 311, the wire pulling mechanism 33, the wire closing mechanism 34 and the third opening 312 in sequence. The wire pulling mechanism 33 moves toward the wire closing mechanism 34, and the wire pulling mechanism 33 cooperates with the wire closing mechanism 34. The wire closing mechanism 34 will clamp the new weaving wire 100 on the wire pulling mechanism 33, and connect the new weaving wire 100 and the old weaving wire 200.

[0062] like Figures 1 to 3 As shown, in some embodiments, the wire pulling mechanism 33 includes:

[0063] The second slide rail 331 is slidably disposed on the first slide rail 32, and a portion of the second slide rail 331 moves along the first slide rail 32 through the second opening 311 to the first opening 11;

[0064] The clamping assembly 332 is slidably disposed on the second slide rail 331, and the working end of the clamping assembly 332 faces the second opening 311. The working end of the clamping assembly 332 can be rotated relative to the clamping assembly 332 from facing the second opening 311 to facing the third opening 312. The clamping assembly 332 cooperates with the second slide rail 331 to the first opening 11 to clamp the new yarn 100.

[0065] In some embodiments, a motor is provided at the bottom of the second slide rail 331, a gear is provided at the driving end of the motor, racks are provided on both sides of the first slide rail 32, the gears are meshed with the racks, and when the driving end of the motor rotates, the gears rotate accordingly. Since the first slide rail 32 is fixed on the shell 31, when the motor is started, the gear will drive the second slide rail 331 to move toward or away from the line changing box under the force.

[0066] The second slide rail 331 can also move relative to the first slide rail 32 through a rope and a sliding wheel. By providing a sliding seat on the rope and then fixing the sliding seat to the second slide rail 331, the sliding wheel can be driven to rotate to drive the rope and the sliding seat to move.

[0067] The clamping assembly 332 is slidably disposed on the second slide rail 331 and can slide on the second slide rail 331 to both ends of the second slide rail 331. When the clamping assembly 332 moves to one end of the second slide rail 331 close to the material change box 1, the working end of the clamping assembly 332 passes through the first opening 11 into the material change box 1 to clamp the new weaving thread 100.

[0068] like Figures 1 to 4 As shown, in some embodiments, the clamping assembly 332 includes:

[0069] The base 3321 is slidably disposed on the second slide rail 331, a sleeve is disposed on the top, and a first tooth is disposed on the inner wall of the sleeve;

[0070] The rotating member 3322 is disposed in the sleeve. A second tooth matching the first tooth is disposed at the connection between the outer wall of the rotating member 3322 and the sleeve. The rotating member 3322 can rotate relative to the base 3321.

[0071] A clamping member 3323, disposed on the rotating member 3322, for clamping a new weaving thread 100;

[0072] The first driving member is disposed in the base 3321 , and a driving end thereof is engaged with the second tooth of the rotating member 3322 , so as to drive the rotating member 3322 to rotate relative to the base 3321 .

[0073] In some embodiments, the base 3321 is slidably disposed on the second slide rail 331, a sleeve is disposed on the top, a first tooth is disposed on the inner wall of the sleeve, a second tooth is disposed on the outer wall of the rotating member 3322, and the first tooth and the second tooth are meshed, so that the rotating member 3322 can rotate relative to the base 3321, and the clamping member 3323 is disposed on the rotating member 3322, so when the rotating member 3322 rotates, the clamping member 3323 also rotates. When the clamping member 3323 clamps the thread end of the new weaving wire 100 in the wire changing box, the new weaving wire 100 in the material changing box 1 can be pulled out by sliding along the second slide rail 331 through the base 3321. When the first driving member drives the rotating member 3322 to rotate, the clamping member 3323 clamps the thread end of the new weaving wire 100 and rotates toward the thread closing mechanism 34.

[0074] When the clamping member 3323 rotates, the old weaving wire 200 is lifted up, so that the new weaving wire 100 is closer to the first slide rail 32 than the old weaving wire 200 .

[0075] Among them, a driving motor for driving the clamping member 3323 to move is provided inside the rotating member 3322. There are two clamping members 3323, which are respectively arranged on both sides of the rotating member 3322, and the driving end of the driving motor is connected to the two clamping members 3323 to drive the two clamping members 3323 to swing relative to each other to clamp the new weaving thread 100.

[0076] like Figures 1 to 4 As shown, in some embodiments, the wire changing device 3 further includes a guide roller 35, which is disposed on the first slide rail 32, and the side of the guide member facing the second opening 311 is a wire pulling mechanism 33, and the side of the guide member facing the third opening 312 is a wire closing mechanism 34;

[0077] An escape space 3324 is provided in the middle of the clamping member 3323 . When the rotating member 3322 drives the clamping member 3323 to rotate to the thread closing mechanism 34 , the guide roller 35 passes through the escape space 3324 .

[0078] In some of the embodiments, the guide roller 35 is disposed between the clamping assembly 332 and the thread closing mechanism 34 , and the guide roller 35 can tension the new thread 100 and the old thread 200 .

[0079] When the rotating member 3322 rotates, the middle part of the clamping member 3323 clamps the new weaving thread 100 to form an avoidance space 3324. When the first driving member drives the rotating member 3322 to rotate, the guide roller 35 passes through the avoidance space 3324, so that the new weaving thread 100 clamped by the clamping member 3323 contacts the guide roller 35.

[0080] In another embodiment, the guide roller 35 can be telescopic in the vertical direction to further tension the new weaving wire 100 and the old weaving wire 200. Specifically, a telescopic rod is provided at the bottom of the guide roller 35.

[0081] like Figures 1 to 4 As shown, in some embodiments, the thread closing mechanism 34 includes a wiring assembly 341, the wiring assembly 341 includes a moving part 3411 and a wiring assembly 3412, the moving part 3411 is movably arranged on the first slide rail 32, the wiring assembly 3412 is arranged on the moving part 3411, and one end of the wiring assembly 3412 facing the moving part 3411 is opened and closed, and cooperates with the wire pulling mechanism 33 to clamp the new weaving wire 100.

[0082] In some embodiments, the moving member 3411 can move relative to the first slide rail 32. After the clamping assembly 332 clamps the new yarn 100, the new yarn 100 can be delivered to the connecting member 3412 by rotation. The connecting member 3412 opens and closes to clamp the new yarn 100, so that the new yarn 100 moves to the connecting member 3412.

[0083] like Figures 1 to 4 As shown, in some embodiments, the closing assembly 342 includes:

[0084] The separation member 3421 is disposed on the inner wall of the housing 31 close to the wiring assembly 341 and corresponds to the wiring member 3412 in the vertical direction, and is used to cut off the old weaving wire 200;

[0085] The thread closing member 3422 is retractably disposed at the top of the inner wall of the housing 31, and a liquid flow channel is provided inside. When the thread closing member 3422 is retracted, the working end of the thread closing member 3422 contacts the old weaving thread 200 and the new weaving thread 100 in sequence;

[0086] The liquid storage member 3423 is disposed on the outer wall of the housing 31 and communicated with the liquid flow channel;

[0087] The adhesive spray nozzle is arranged in the working end of the thread joining member 3422 and is connected to the liquid storage member 3423 through a liquid flow channel, and is used to bond the old thread 200 and the new thread 100.

[0088] In some embodiments, the working end of the thread closing member 3422 will first clamp the old thread 200, and the thread closing member 3422 will extend and retract to drive the old thread 200 close to the new thread 100, so that the old thread 200 contacts the new thread 100. When the new thread 100 contacts the old thread 200, the working end of the thread closing member 3422 will close to clamp the old thread 200 and the new thread 100 at the same time. The thread closing member 3422 can move along the inner wall of the housing 31. Specifically, a guide rail is provided at the connection between the thread closing member 3422 and the inner wall, and the thread closing member 3422 can slide along the guide rail, which is arranged along the length direction of the inner wall, that is, the conveying direction of the old thread 200.

[0089] The separator 3421 is preferably a pair of scissors, and the separator 3421 is used to cut the old thread 200 , so that the part of the old thread 200 close to the separator 3421 is cut off by the separator 3421 .

[0090] When the connection member 3412 clamps the new thread 100, the moving member 3411 slides along the first slide rail 32 toward the third opening 312, and the thread closing member 3422 extends out in the direction of the first slide rail 32, thereby contacting the old thread 200 and the new thread 100 in turn, and clamping the old thread 200 and the new thread 100. At this time, the separating member 3421 cuts the old thread 200. Since the separating member 3421 is arranged close to the connection assembly 341, the separating member 3421 cuts a section of the old thread 200 close to the second opening 311, so that one end of the old thread 200 and one end of the new thread 100 are clamped by the thread closing member 3422 at the same time. At this time, the adhesive spray head sprays adhesive substances to the clamped new thread 100 and the old thread 200, so that the new thread 100 and the old thread 200 are adhered together.

[0091] like Figures 1 to 8 As shown, in some embodiments, a protrusion 13 is provided in the middle of the material changing box 1, and the protrusion 13 and the side of the material changing box 1 with the first opening 11 together form a storage space 12; the table top of the protrusion 13 and the top of the material changing box 1 together form a first space 14, and the first space 14 is used to park the old weaving wire 200 to cooperate with the wire pulling mechanism 33 to clamp the new weaving wire 100.

[0092] In some embodiments, the driving mechanism 2 is disposed at the bottom of the storage space 12. When the new thread 100 at the first opening 11 is used up, the new thread 100 at the first opening 11 will be transported to the first space 14, and the other new thread 100 stored in the storage space 12 will be held by the driving mechanism 2 to the first opening 11. At this time, the new thread 100 at the first space 14 can be called the old thread 200, so that the new thread 100 and the old thread 200 at the first opening 11 are at the same level.

[0093] In another embodiment, the protrusion 13 and the other side of the material changing box 1 with the first opening 11 form a second space 15, and the second space 15 is used to store the old thread 200. When the thread closing mechanism 34 completes the connection between the new thread 100 and the old thread 200, the old thread 200 will be transported to the second space 15. Among them, the other side of the material changing box 1 with the first opening 11 has a fifth opening at the bottom, and the old thread 200 can be taken out of the second space 15 through the fifth opening.

[0094] like Figures 1 to 9 As shown, in some embodiments, a fourth opening 16 is provided on the top of the material changing box 1 , and the fourth opening 16 corresponds to the storage space 12 , and is used for placing new weaving yarn 100 into the storage space 12 .

[0095] In some embodiments, a second opening 311 is formed on the top of the material changing box 1 . The second opening 311 corresponds to the storage space 12 , and new yarns 100 can be added into the storage space 12 through the second opening 311 .

[0096] like Figures 1 to 4 As shown, in some embodiments, a mobile line changing component 4 is also included, and the mobile line changing component 4 includes:

[0097] Two third slide rails 41 are arranged on two adjacent sides of the first opening 11 of the material changing box 1 and correspond to the first opening 11 in the horizontal direction;

[0098] The multiple telescopic members 42 are respectively arranged on the two third slide rails 41 , the multiple telescopic members 42 correspond to each other, the telescopic members 42 are slidably connected to the third slide rails 41 , and the telescopic members 42 are in an extended state to fix the new weaving thread 100 .

[0099] In some of the embodiments, the third slide rail 41 is arranged on both adjacent sides of the first opening 11, and extends from one side of the material changing box 1 where the first opening 11 is opened to the other side of the material changing box 1 where the first opening 11 is opened, and the telescopic member 42 slides along the third slide rail 41, thereby driving the new weaving thread 100 to the second space 15 and driving the old weaving thread 200 to the second space 15.

[0100] There are multiple telescopic members 42, and every two telescopic members 42 form a pair and correspond to each other, and are used to clamp a new weaving thread 100 or an old weaving thread 200. Specifically, there are four telescopic members 42, namely the first telescopic member, the second telescopic member, the third telescopic member and the fourth telescopic member, the first telescopic member corresponds to the second telescopic member, and the third telescopic member corresponds to the fourth telescopic member. When the driving mechanism 2 drives the new weaving thread 100 to the first opening 11, the first telescopic member 42 and the second telescopic member 42 extend to fix the new weaving thread 100. When the new weaving thread 100 at the first opening 11 is used up, the first telescopic member 42 and the second telescopic member 42 drive the new weaving thread 100 at the first opening 11 to move along the third slide rail 41 to the second space 15. At this time, the new weaving thread 100 at the first opening 11 is the old weaving thread 200, and the first telescopic member and the second telescopic member retract and move to the first opening 11 along the third track. At this time, the third telescopic member and the fourth telescopic member move to the second space to clamp the old weaving thread 200. The driving mechanism 2 holds the other new thread 100 to the first opening 11, and the first telescopic member 42 and the second telescopic member clamp the other new thread 100. At this time, the thread closing mechanism 34 connects the old thread 200 and the new thread 100. After the connection between the old thread 200 and the new thread 100 is completed, the third telescopic member 42 and the fourth telescopic member clamp the old thread 200 and move to the second space 15, and the third telescopic member 42 and the fourth telescopic member are retracted, and the old thread 200 falls into the second space 15.

[0101] The peripheral side of the telescopic member 42 is movably connected to the second slide rail 331 , and the middle part can be telescopic relative to the body of the telescopic member 42 .

[0102] On the one hand, if Fig. 9 As shown, a control system of a circular knitting machine in one embodiment of the present invention includes all technical features of a host machine and a circular knitting machine, and its control process is as follows:

[0103] S10, controlling the second slide rail 331 to move toward the material changing box 1, and controlling the gripping assembly 332 to move toward the material changing box 1;

[0104] S20, controlling the telescopic rod to carry the old weaving thread 200 to move to the first space 14 along the third slide rail 41 away from the first opening 11, and controlling the driving mechanism 2 to rise in the storage space 12 to push the new weaving thread 100 to the first opening 11;

[0105] S30, controlling the clamping assembly 332 to clamp the new weaving thread 100, and controlling the clamping assembly 332 and the second slide rail 331 to move toward the guide roller 35;

[0106] S40, controlling the rotating member 3322 to rotate to the wiring assembly 341, and controlling the wiring assembly 341 to clamp the new weaving thread 100;

[0107] S50, controlling the wiring assembly 341 to move away from the material changing box 1, and controlling the wire closing member 3422 to extend and retract to contact the old weaving wire 200 and the new weaving wire 100 in sequence;

[0108] S60, controlling the separation member 3421 to cut off the old weaving thread 200, and controlling the adhesive spray head to spray the adhesive substance;

[0109] S70, controlling the telescopic member 42 holding the old yarn 200 to move back to the first opening 11, and controlling the thread closing member 3422 to retract.

[0110] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0111] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A circular knitting machine, characterized in that: It includes a knitting host and an automatic line changing device, and the line changing device includes: A material changing box, wherein a first opening is provided on the top of the peripheral side, and a storage space is provided inside the material changing box, wherein the storage space is communicated with the first opening, and the storage space is used to store new weaving yarn; A driving mechanism, disposed in the storage space, for driving the new yarn and the old yarn to move in the storage space; A wire changing device is arranged on the side of the material changing box where the first opening is opened, comprising a shell, a first slide rail, a wire pulling mechanism and a wire closing mechanism, wherein the two ends of the shell are respectively provided with a second opening and a third opening for the weaving wire to pass through, and the second opening corresponds to the first opening; the first slide rail is arranged inside the shell; the wire pulling mechanism is movably arranged at one end of the first slide rail close to the second opening; the wire closing mechanism is arranged inside the shell and is used to cut off the old weaving wire and connect the new weaving wire with the old weaving wire; The wire pulling assembly is used to pull the new weaving wire in the material changing box into the wire closing mechanism.

2. The circular knitting machine according to claim 1, characterized in that: The wire pulling mechanism comprises: a second slide rail, slidably disposed on the first slide rail, wherein a portion of the second slide rail moves along the first slide rail through the second opening to the first opening; A clamping assembly is slidably arranged on the second slide rail, and the working end of the clamping assembly faces the second opening. The working end of the clamping assembly can be rotated relative to the clamping assembly from facing the second opening to facing the third opening. The clamping assembly cooperates with the second slide rail to the first opening to clamp the new weaving thread.

3. The circular knitting machine according to claim 2, characterized in that: The clamping assembly comprises: A base is slidably arranged on the second slide rail, a sleeve is arranged on the top, and a first tooth is arranged on the inner wall of the sleeve; A rotating member is arranged in the sleeve, and a second tooth matching the first tooth is arranged at the connection between the outer wall of the rotating member and the sleeve, and the rotating member can rotate relative to the base; A clamping member, arranged on the rotating member, for clamping new weaving thread; The first driving member is arranged in the base, and the driving end of the first driving member is meshed with the second tooth of the rotating member, so as to drive the rotating member to rotate relative to the base.

4. The circular knitting machine according to claim 3, characterized in that: The wire changing device further comprises a guide roller, wherein the guide roller is arranged on the first slide rail, the side of the guide member facing the second opening is a wire pulling mechanism, and the side of the guide member facing the third opening is a wire closing mechanism; An escape space is provided in the middle of the clamping member, and when the rotating member drives the clamping member to rotate to the line closing mechanism, the guide roller passes through the escape space.

5. The circular knitting machine according to claim 1, characterized in that: The thread closing mechanism includes a wiring assembly, which includes a moving part and a wiring part. The moving part is movably arranged on the first slide rail, and the wiring part is arranged on the moving part. The end of the wiring part facing the moving part is opened and closed, and cooperates with the wire pulling mechanism to clamp the new weaving wire.

6. The circular knitting machine according to claim 1, characterized in that: The line closing mechanism also includes a line closing component including: A separation piece, arranged on the inner wall of the housing close to the wiring assembly and corresponding to the wiring piece in the vertical direction, for cutting off the old weaving wire; A thread closing piece is retractably arranged at the top of the inner wall of the shell, and a liquid flow channel is arranged inside. When the thread closing piece is retracted, the working end of the thread closing piece contacts the old weaving thread and the new weaving thread in sequence; A liquid storage member, disposed on the outer wall of the housing and communicated with the liquid flow channel; The adhesive spray head is arranged in the working end of the thread joining member, is connected with the liquid storage member through the liquid flow channel, and is used for bonding the old weaving thread and the new weaving thread.

7. The circular knitting machine according to claim 1, characterized in that: A protrusion is provided in the middle of the material changing box, and the protrusion and the side of the material changing box with a first opening together form a storage space; the raised table top and the top of the material changing box together form a first space, and the first space is used to park the old weaving wire to cooperate with the wire pulling mechanism to clamp the new weaving wire.

8. The circular knitting machine according to claim 1, characterized in that: A fourth opening is provided on the top of the material changing box, and the fourth opening corresponds to the storage space and is used for placing new weaving thread into the storage space.

9. The circular knitting machine according to claim 1, characterized in that: It also includes a mobile line changing component, the mobile line changing component includes: Two third slide rails are arranged on two adjacent sides of the first opening of the material changing box and correspond to the first opening in the horizontal direction; A plurality of telescopic parts are respectively arranged on the two third slide rails, the plurality of telescopic parts correspond to each other, the telescopic parts are slidably connected to the third slide rails, and the telescopic parts are used to fix new weaving threads when they are in an extended state.

10. A control system for a circular knitting machine, characterized in that: The invention comprises a main machine and a circular knitting machine as claimed in any one of claims 1 to 9, wherein the control process is as follows: S10, controlling the second slide rail to move toward the material changing box, and controlling the clamping assembly to move toward the material changing box; S20, controlling the telescopic rod to carry the old weaving thread and move along the third slide rail to the first space away from the first opening, and controlling the driving mechanism to rise in the storage space to push the new weaving thread to the first opening; S30, controlling the clamping assembly to clamp the new weaving thread, and controlling the clamping assembly and the second slide rail to move toward the guide roller; S40, controlling the rotating member to rotate to the wiring assembly, and controlling the wiring assembly to clamp the new weaving wire; S50, controlling the wiring assembly to move away from the material changing box, and controlling the wire closing member to extend and retract to contact the old wire and the new wire in sequence; S60, controlling the separation element to cut off the old weaving thread, and controlling the adhesive spray head to spray the adhesive substance; S70, controlling the telescopic member holding the old yarn to move back to the first opening, and controlling the thread closing member to retract.

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