Scissor mechanism with double-layer wire clamping function

Abstract

The utility model relates to a scissor mechanism with a double-layer wire clamping function. The scissor mechanism comprises a scissor seat, a transmission assembly, a pair of scissors, a hook knife and a wire clamping assembly, the transmission assembly is arranged on the scissor seat and used for controlling opening and closing of the scissors and thread hooking of the hooking knife; the wire clamping assembly comprises a first movable piece, a clamping piece and a second movable piece, the clamping piece is fixedly arranged above the scissors, and the first movable piece and the second movable piece are rotationally arranged above the scissors; the clamping piece is provided with a first clamping part and a second clamping part, and the first clamping part and the second clamping part are arranged at an interval; the first movable piece and the first clamping part are partially overlapped in the vertical direction to clamp the first yarn or are staggered in the vertical direction to form a pay-off space; and the second movable sheet and the second clamping part are partially overlapped in the vertical direction to clamp the second yarn or are staggered in the vertical direction to form a pay-off space. The two clamping layers are arranged, clamping and cutting of two kinds of yarn and switching of yarn clamping positions can be carried out, and the knitting possibility is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of braiding machines, in particular to a scissors mechanism with a double-layer wire clamping function. Background Art

[0002] The knitting machine is used for knitting gloves, socks and other items. The horizontal knitting machine includes a scissors device, which is used for cutting the yarn. The scissors device includes scissors and a hook knife. The scissors and the hook knife need to cooperate with each other to complete the work. The existing scissors device has a complex control structure and unstable control. When the scissors and the hook knife work together, they also need to be assisted by a wire pressing mechanism. The wire pressing mechanism is used to press the yarn to prevent the yarn from jumping after it is cut. If the yarn jumps, the yarn needs to be reconnected, which is very troublesome. When working, the wire pressing mechanism presses the yarn first, and then the scissors cut the yarn. After the yarn is cut, it is still pressed by the wire pressing mechanism so that the yarn can continue to be woven and used.

[0003] The existing thread pressing mechanism has a complex structure. It can only press one type of yarn, or can only press and release multiple yarns at the same time, and cannot be controlled individually. When multiple yarns need to be switched in subsequent weaving, it can only be achieved by rewiring, which affects work efficiency. Utility Model Content

[0004] The utility model provides a scissor mechanism with a double-layer wire clamping function. Two clamping layers are arranged, and two types of yarns can be clamped, cut and switched. When multiple yarns are switched, rewiring is not required, thereby improving work efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A scissors mechanism with a double-layer wire clamping function, comprising a scissors seat, a transmission assembly, scissors, a hook knife and a wire clamping assembly;

[0007] The upper end of the scissors seat is provided with a mounting surface, the scissors are mounted on the mounting surface, and the wire clamping assembly is arranged above the scissors;

[0008] The transmission assembly is arranged on the scissor seat, and is used to control the opening and closing of the scissors and the hook knife to hook the thread, so that the scissors, the thread clamping assembly and the hook knife cooperate to cut the yarn;

[0009] The clamping assembly comprises a first movable piece, a clamping piece and a second movable piece, wherein the clamping piece is fixedly arranged above the scissors, and the first movable piece and the second movable piece are rotatably arranged above the scissors;

[0010] The clip has a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are arranged at an interval;

[0011] The above-mentioned first movable piece rotates relative to the above-mentioned first clamping part, and the two partially overlap in the vertical direction to clamp the first yarn or the two are staggered in the vertical direction to form a thread-releasing space; the above-mentioned second movable piece rotates relative to the above-mentioned second clamping part, and the two partially overlap in the vertical direction to clamp the second yarn or the two are staggered in the vertical direction to form a thread-releasing space.

[0012] Preferably, the clip includes a first clip and a second clip, the first clamping portion is provided at an end of the first clip, and the second clamping portion is provided at an end of the second clip;

[0013] The first movable piece, the first clamping piece, the second movable piece and the second clamping piece are arranged in sequence from top to bottom, the second clamping piece is located above the scissors, and the first clamping piece and the second clamping piece are fixedly arranged on the mounting surface.

[0014] Preferably, the first clamping piece further has a third clamping portion, and the third clamping portion and the first clamping portion are arranged at an interval;

[0015] The second movable piece rotates relative to the third clamping part and the second clamping part, and in the vertical direction, the second movable piece partially overlaps with the third clamping part and the second clamping part to clamp the second yarn;

[0016] Or, in the vertical direction, the second movable piece is staggered with the third clamping portion and the second clamping portion to form a wire-releasing space.

[0017] Preferably, the scissors include fixed scissors and movable scissors, the fixed scissors are mounted on the mounting surface, the movable scissors are rotatably mounted on the upper end surface of the fixed scissors, and the movable scissors are connected to the transmission assembly via a rotating shaft;

[0018] The wire clamping assembly further comprises a spacer, which is located between the scissors and the second clamping piece and abuts against the two, so that the second clamping portion and the upper end surface of the movable scissors are spaced apart.

[0019] Preferably, the lower end of the rotating shaft is connected to the transmission assembly, and the upper end passes through the mounting surface, the fixed scissors, the movable scissors, the spacer, the second clamp, the second movable sheet, the first clamp and the first movable sheet in sequence and is connected to the fixed sheet, the movable scissors can rotate with the rotating shaft, and the first movable sheet and the second movable sheet swing in the horizontal direction relative to the rotating shaft;

[0020] A fixing pin is arranged on the mounting surface, and the fixing pin passes through the fixed scissors, the spacer, the second clamp, the second movable piece, the first clamp and the first movable piece in sequence upward; the first movable piece and the second movable piece rotate relative to the fixing pin.

[0021] Preferably, the transmission assembly comprises a first transmission member, a second transmission member and a rotating shaft, the lower end of the rotating shaft is connected to the second transmission member, the upper end of the rotating shaft passes through the mounting surface and is connected to the scissors, and the first transmission member cooperates with the second transmission member to control the rotating shaft to open and close the scissors;

[0022] The first transmission member comprises a mounting post, which is rotatably disposed on a notch disposed in the scissor seat and connected to the transmission shaft;

[0023] A first mounting plate is arranged outside the mounting column, and an end of the first mounting plate away from the mounting column is provided with a slot and an arc surface connected to the slot wall, and the distances between each point of the arc surface and the center line of the transmission hole of the mounting column are equal;

[0024] The lower end of the hook knife is slidably arranged on the scissor seat, the hook knife is located between the first mounting plate and the inner side wall of the scissor seat, and a pusher foot is arranged in the middle of the hook knife;

[0025] The above-mentioned pushing foot is at the first position on the inner side of the above-mentioned slot, the above-mentioned hook knife is at the highest point, the above-mentioned pushing foot is on the arc surface, and the above-mentioned hook knife is at the lowest point; the above-mentioned mounting column rotates clockwise, the above-mentioned pushing foot moves outward from the first position on the inner side of the above-mentioned slot, and the above-mentioned hook knife descends until the above-mentioned pushing foot moves to the junction of the above-mentioned arc surface and the above-mentioned arc surface, and the above-mentioned hook knife moves from the highest point to the lowest point to hook the yarn, the above-mentioned wire clamping assembly is closed first to clamp the yarn, and then the above-mentioned scissors are closed and the above-mentioned scissors cut.

[0026] Preferably, a second mounting plate is provided on the outer side wall of the mounting column, the second mounting plate is located on the left side of the first mounting plate, an arc-shaped driving surface is provided on the left side of the second mounting plate, and a first driving surface, a second driving surface and a third driving surface connected in sequence are provided on the end of the second mounting plate away from the mounting column, and in the clockwise direction, the distances between each point of the first driving surface and the center line of the transmission hole are equal, and the distances between each point of the second driving surface and the third driving surface and the center line of the transmission hole become larger;

[0027] The second transmission member comprises a rotating block, wherein the rotating block has a shearing and pressing portion matched with the arc-shaped driving surface and a driving portion matched with the driving surface;

[0028] In the initial position, the scissors are closed, the shearing and pressing part is located at the highest point of the arc-shaped driving surface, and the pusher foot is located at the end of the arc-shaped surface;

[0029] The mounting post rotates counterclockwise in the initial position, the pusher foot moves along the arc surface in the direction of the slot, the height of the hook knife remains unchanged, and the driving part moves along the third driving surface, the rotating block rotates clockwise, and the scissors open, until the pusher foot moves to the junction of the slot and the arc surface, the driving part moves to the junction of the third driving surface and the second driving surface, and then the mounting post continues to rotate counterclockwise, the pusher foot moves into the slot, and the hook knife starts to rise, and at the same time the driving part moves on the second driving surface, the rotating block continues to rotate clockwise, and the scissors continue to open, and then the mounting post continues to rotate counterclockwise, the pusher foot continues to move into the slot, and the hook knife continues to rise, and at the same time the driving part moves on the first driving surface, the rotating block does not rotate, and the opening of the scissors remains unchanged, until the pusher foot moves to the first position in the slot, the hook knife moves to the highest point, and the driving part moves to the head end of the first driving surface;

[0030] When the hook knife is at the highest point, the mounting column rotates clockwise at the initial position, the pusher foot moves outward from the first position in the slot, and the hook knife descends. At this time, the wire clamping assembly is in a wire-releasing state, until the pusher foot moves to the junction of the slot and the arc surface, the hook knife moves to the lowest point, and the shearing and pressing part contacts the lowest point of the arc driving surface, and then the mounting column continues to rotate clockwise, the pusher foot moves on the arc surface, and then the position of the hook knife remains unchanged. At the same time, the shearing and pressing part starts to move along the arc driving surface, and the scissors start to close, until the pusher foot moves to the end of the arc surface, the shearing and pressing part moves to the highest point of the arc driving surface, and the scissors are completely closed.

[0031] Preferably, a reset member is sleeved on the outer side of the rotating shaft, and the lower end of the reset member is connected to the rotating block;

[0032] At the initial position, when the scissors are closed, the reset member is in a stressed state, the mounting column rotates counterclockwise, the reset member causes the rotating block to rotate clockwise, and the scissors open.

[0033] Preferably, it also includes a driving component, which includes a driving motor and a driving gear. The driving motor is installed on the scissors seat through a motor seat, and the driving gear is rotatably arranged on the driving shaft of the driving motor. The end of the first movable piece away from the first clamping part and the end of the second movable piece away from the second clamping part are both provided with driving teeth meshing with the driving gear.

[0034] Preferably, it also includes a sensing component for determining the initial position;

[0035] The driving assembly further comprises a driving column, the driving column is mounted on the driving shaft of the driving motor, and the driving gear is mounted on the end of the driving column away from the driving motor;

[0036] The induction assembly comprises an induction sheet, an inductor and an inductor seat. The inductor seat is mounted on the motor seat, the induction sheet is mounted on the driving column, and the inductor is mounted on the inductor seat.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] 1. By arranging the first movable piece and the first clamping part to clamp the first yarn and the second movable piece and the second clamping part to clamp the second yarn to form two clamping layers, the two yarns can be clamped, cut and switched, so that the knitting efficiency of the knitting machine is higher.

[0039] 2. The two-layer clamping layer is used to clamp the yarns on different yarn mouths. The thickness of the yarns on different yarn mouths requires different pressures when clamping. One yarn corresponds to one clamping layer. You only need to adjust the movable piece to better meet the clamping pressure of the yarn. The clamping pressure is controllable, making the clamping of the yarn more stable and the adjustment more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 This is an overall exploded view of the scissor mechanism of the embodiment of the utility model;

[0042] Figure 2 This is an exploded view of the wire clamping assembly of an embodiment of the utility model;

[0043] Figure 3 The overall schematic diagram of the scissors mechanism in the embodiment of the utility model Figure 1 ;

[0044] Figure 4 The overall schematic diagram of the scissors mechanism in the embodiment of the utility model Figure 2 ;

[0045] Figure 5 A schematic diagram of a scissor seat in an embodiment of the utility model;

[0046] Figure 6 This is a schematic diagram of a first transmission member in an embodiment of the present utility model;

[0047] Figure 7 This is a schematic diagram of a first transmission member in an embodiment of the present utility model;

[0048] Figure 8 This is a schematic diagram of the cooperation between the first transmission member and the second transmission member in the embodiment of the utility model;

[0049] Fig. 9 This is a schematic diagram of the initial position of the upper clamping layer in the embodiment of the utility model;

[0050] Fig.10 This is a schematic diagram of the initial position of the lower clamping layer in the embodiment of the utility model;

[0051] Fig.11 A schematic diagram of the upper wire clamping layer when the lower wire clamping layer in the embodiment of the utility model is laying out;

[0052] Fig.12 A schematic diagram of the lower wire clamping layer when laying out the wires in the lower wire clamping layer of the embodiment of the utility model;

[0053] Fig.13 A schematic diagram of the upper wire clamping layer when laying out the wires in the upper wire clamping layer of the embodiment of the utility model;

[0054] Fig.14 A schematic diagram of the lower wire clamping layer when the upper wire clamping layer in the embodiment of the utility model is laying out the wire;

[0055] Fig.15 This is a schematic diagram of the scissors in the embodiment of the utility model being opened;

[0056] Fig.16 This is a schematic diagram of the scissors closing in an embodiment of the utility model;

[0057] Fig.17 This is a schematic diagram of an embodiment of the utility model in which the pusher foot is at the first position in the slot, the hook knife is at the highest point, and the scissors are in an open state;

[0058] Fig.18 This is a schematic diagram of an embodiment of the utility model in which the pusher foot is located at the end of the arc surface, the cutting part is at the highest point of the arc driving surface, the scissors are in a closed state, and the hook knife is at the lowest point;

[0059] Fig.19 A top view of the cutting portion of the embodiment of the utility model moving to the highest point of the arc-shaped driving surface;

[0060] Fig. 20This is a schematic diagram of the embodiment of the utility model in which the push pin is located at the junction of the slot and the arc surface, and the cutting portion cooperates with the arc driving surface;

[0061] Fig.21 It is a top view of the push pin of the embodiment of the utility model located at the junction of the slot and the arc surface.

[0062] Description of reference numerals:

[0063] 1. Scissor seat; 1001. Notch; 1002. Slide; 1003. Mounting surface; 2. Wire clamping assembly; 21. First movable sheet; 211. First fan-shaped hole; 22. First clamping sheet; 221. First clamping part; 222. Third clamping part; 23. Second movable sheet; 231. Second fan-shaped hole; 24. Second clamping sheet; 241. Second clamping part; 25. Spacer; 26. Fixed sheet; 3. Rotating shaft; 31. Reset member; 4. Fixed pin; 5. Reinforcement block; 6. Transmission assembly; 61. First transmission member; 611. Mounting column; 612. First mounting plate; 613. Slot; 614. Arc surface; 615 , second mounting plate; 616, arc-shaped driving surface; 617, first driving surface; 618, second driving surface; 619, third driving surface; 62, second transmission member; 621, rotating block; 622, shearing and pressing part; 623, driving part; 7, scissors; 71, fixed scissors; 72, movable scissors; 8, hook knife; 81, pusher foot; 9, driving assembly; 91, driving motor; 92, driving column; 93, driving gear; 94, motor seat; 10, induction assembly; 101, induction sheet; 102, sensor; 103, sensor seat; 11, transmission shaft; 12, first yarn; 13, second yarn; 14, thread-releasing space. DETAILED DESCRIPTION

[0064] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0065] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the following specific embodiments, the front, back, left, right, counterclockwise and clockwise directions are based on Figure 3 For clockwise and counterclockwise directions, refer to Figure 17-18 .

[0068] The utility model embodiment provides a scissors mechanism with a double-layer wire clamping function, such as Figure 1-8 As shown, when a knitting machine is used to weave fabrics, the yarn is cut, wherein the scissors 7 mechanism includes a scissors seat 1, a transmission assembly 6, scissors 7, a hook knife 8 and a wire clamping assembly 2, the scissors seat 1 is installed on the base of the knitting machine, a mounting surface 1003 is provided on the upper end of the scissors seat 1, the scissors 7 are installed on the mounting surface 1003, the transmission assembly 6 is installed on the scissors seat 1, and the transmission assembly 6 can control the opening and closing of the scissors 7 and the hook knife 8 to hook the wire, so that after the hook knife 8 hooks the yarn from above, the hook knife 8 hooks the yarn to the cutting position of the scissors 7, and then the yarn is clamped by the wire clamping assembly 2, and the scissors 7 are closed to cut the yarn.

[0069] The clamping assembly includes a first movable piece 21, a clamping piece and a second movable piece 23, wherein the clamping piece is fixedly arranged above the scissors, and the first movable piece 21 and the second movable piece 23 are rotatably arranged above the scissors; the clamping piece has a first clamping portion 221 and a second clamping portion 241, and the first clamping portion 221 and the second clamping portion 241 are arranged at an interval; specifically, the first movable piece 21 can be rotated relative to the first clamping portion 221, and when rotated to a certain angle, the two can partially overlap in the vertical direction, thereby clamping and fixing the first yarn 12, or the two can be staggered in the vertical direction to form a line-releasing space 14, loosening the clamped first yarn 12, or allowing the first yarn 12 to enter between the first movable piece 21 and the first clamping portion 221, and then be clamped; the The two movable pieces 23 can rotate relative to the second clamping part 241, and rotate to a certain angle. The two can partially overlap in the vertical direction, thereby clamping and fixing the second yarn 13, or the two can be staggered in the vertical direction to form a line release space 14, loosen the clamped second yarn 13, or allow the second yarn 13 to enter between the second movable piece 23 and the second clamping part 241, and be clamped later; it can be known that the first movable piece 21 and the first clamping part 221 clamp the first yarn 12 and the second movable piece 23 and the second clamping part 241 clamp the second yarn 13 to form two clamping layers, which can clamp two yarns at the same time, that is, clamp the first yarn 12 and the second yarn 13 at the same time, or clamp only one yarn, or clamp none of the yarns. The two clamping layers can clamp, cut and switch two kinds of yarns, so that the knitting efficiency of the braiding machine is higher, and the clamping pressure of each can be self-controlled, the clamping is more stable, and the adjustment is more convenient.

[0070] Specifically, in this embodiment, if Figure 9-14 As shown, the clip includes a first clip 22 and a second clip 24, the first clamping portion 221 is provided at the end of the first clip 22, the second clamping portion 241 is provided at the end of the second clip 24, the first movable piece 21, the first clip 22, the second movable piece 23 and the second clip 24 are arranged in sequence from top to bottom, the second clip 24 is located above the scissors 7, the first movable piece 21 and the second movable piece 23 are both rotatably provided on the mounting surface 1003, the first clip 22 and the second clip 24 are fixedly provided on the mounting surface 1003, and the specific position relationship is as shown in FIG. Figure 2 As shown, the first clamping portion 221 and the second clamping portion 241 are arranged at intervals in the vertical direction, and the first clamping portion 221 is located at the front side of the second clamping portion 241; Fig. 9As shown, the first movable piece 21 can rotate clockwise or counterclockwise in the horizontal direction relative to the first clamping part 221. By rotating the first movable piece 21 at different angles, the relative position of the end of the first movable piece 21 and the first clamping part 221 will change, so that the upper thread clamping layer composed of the first movable piece 21 and the first clamping piece 22 has a state of clamping the yarn or a state of having a thread release space 14 (not clamping the yarn). When the upper thread clamping layer clamps the yarn, the end of the first movable piece 21 and the first clamping part 221 partially overlap in the vertical direction, thereby forming a misalignment to clamp the yarn. When the upper thread clamping layer is releasing the yarn, the end of the first movable piece 21 and the first clamping part 221 partially overlap in the vertical direction, thereby forming a misalignment to clamp the yarn. When the yarn is in the threading state, the end of the first movable piece 21 and the first clamping part 221 are staggered in the vertical direction, that is, there is a distance between the end of the first movable piece 21 and the first clamping part 221, thereby forming a threading space 14, and the yarn will be detached from it; wherein the end of the second clamping piece 24 has a second clamping part 241, and the second movable piece 23 can rotate in the horizontal direction relative to the second clamping part 241. By rotating the second movable piece 23 at different angles, the relative position of the end of the second movable piece 23 and the second clamping part 241 will change, so that the lower clamping piece composed of the second movable piece 23 and the second clamping piece 24 The thread layer has a state of clamping the yarn or a state of having a thread-releasing space 14 (without clamping the yarn). When the lower thread clamping layer is clamping the yarn, the end of the second movable piece 23 and the second clamping part 241 are partially overlapped in the vertical direction, thereby forming a misalignment to clamp the yarn. When the lower thread clamping layer is in the thread-releasing state, the end of the second movable piece 23 and the second clamping part 241 are staggered in the vertical direction, that is, the second clamping part 241 at the end of the second movable piece 23 is spaced a distance apart, thereby forming a thread-releasing space 14, and the yarn will detach from it; it should be noted that when the hook knife 8 is hooking the thread downward, the thread clamping Component 2 needs to form a corresponding wire-releasing space 14. For example, when the hook knife 8 hooks the first yarn 12, a wire-releasing space 14 needs to be formed in advance between the first movable piece 21 and the first clamping part 221, so that the hook knife 8 hooks the first yarn 12 into the wire-releasing space 14, which is convenient for the subsequent first movable piece 21 and the first clamping part 221 to clamp the first yarn 12. When the hook knife 8 hooks the second yarn 13, a wire-releasing space 14 needs to be formed in advance between the second movable piece 23 and the second clamping part 241, so that the hook knife 8 hooks the second yarn 13 into the wire-releasing space 14, which is convenient for the subsequent second movable piece 23 and the second clamping part 241 to clamp the second yarn 13.

[0071] In summary, by providing an upper clamping layer composed of the first movable sheet 21 and the first clamping sheet 22 and a lower clamping layer composed of the second movable sheet 23 and the second clamping sheet 24, the first yarn 12 and the second yarn 13 can be clamped at the same time, and the two yarns can be clamped, cut and switched at the same time; furthermore, the upper clamping layer and the lower clamping layer clamp the yarns on different yarn mouths, and the thickness of the yarns on different yarn mouths requires different pressures when clamping. By corresponding one clamping layer to one yarn, appropriate adjustments are made to make the clamping of the yarn more stable; Moreover, compared with a single-layer clamping of two yarns, the clamping overlapping surfaces on both sides are fixed, that is, the pressure on the yarn is also fixed, while the double-layer clamping layer composed of the upper clamping layer and the lower clamping layer can change the size of the clamping overlapping surfaces in the upper and lower clamping layers by adjusting the positions of the upper and lower movable plates, thereby achieving stable clamping of the yarn; it should be noted that no matter whether the lower clamping layer or the upper clamping layer is releasing the thread, the first yarn 12 or the second yarn 13 should have been woven into the fabric or hooked with a crochet hook before releasing the thread, otherwise once the thread is released, the yarn end will fall off from the yarn mouth.

[0072] Of course, in another embodiment, the clip may also include only one clip, the first clamping part and the second clamping part are respectively located at the ends of the clip and are arranged apart, the first movable piece and the second movable piece are respectively located on the upper and lower sides of the clip, so that the first movable piece and the first clamping part cooperate to form an upper clamping layer, which can clamp the first yarn 12, and the second movable piece and the second clamping part cooperate to form a lower clamping layer, which can clamp the second yarn 13, which can meet the needs of clamping, cutting and switching of two yarns.

[0073] Preferably, in this embodiment, the first clamping piece 22 further includes a third clamping portion 222, and the third clamping portion 222 and the first clamping portion 221 are spaced apart. Figure 2As shown, the third clamping portion 222 is located at the rear side of the first clamping portion 221, and the third clamping portion 222 is located directly above the second clamping portion 241. Specifically, the second movable piece 23 can rotate relative to the third clamping portion 222. By rotating the second movable piece 23 to different angles, the second movable piece 23 can cooperate with the third clamping portion 222 and the second clamping portion 241 to form a line clamping state or a line releasing state; specifically, in the line clamping state, in the vertical direction, the second movable piece 23 partially overlaps with the third clamping portion 222 and the second clamping portion 241 to clamp the second yarn 13, that is, the second movable piece 23 cooperates with the third clamping portion 222 of the upper layer and the second clamping portion 241 of the lower layer to achieve two-layer clamping of the second yarn 13, which is generally used for clamping the main yarn, so that the main yarn has double protection to avoid unintentional leakage from the line clamping component. 2; in the wire-releasing state, in the vertical direction, the second movable piece 23 is staggered with the third clamping part 222 and the second clamping part 241 to form a wire-releasing space, that is, the ends of the second movable piece 23 are spaced one end distance from the third clamping part 222 and the second clamping part 241 in the horizontal direction, thereby forming a wire-releasing space 14, so that the line is detached from the wire clamping assembly 2. It should be noted that when the hook knife 8 hooks the line downward, the wire clamping assembly 2 needs to form a corresponding wire-releasing space 14 at this time. For example, when the hook knife 8 hooks the second yarn 13, the wire-releasing space 14 needs to be formed in advance between the second movable piece 23 and the second clamping part 241 and the third clamping part 222, so that the hook knife 8 hooks the second yarn 13 into the wire-releasing space 14, which is convenient for the subsequent second movable piece 23 and the second clamping part 241 and the third clamping part 222 to clamp the second yarn 13. Therefore, in the present embodiment, there are two thread clamping methods in total. The first method is that the first movable piece 21 and the first clamping part 221 cooperate to form an upper thread clamping layer to clamp the first yarn 12. The second method is that the second movable piece 23 cooperates with the second clamping part 241 and the third clamping part 222 to form a lower thread clamping layer to clamp the second yarn 13, thereby being able to meet the needs of clamping, cutting and switching of two yarns. It should be noted that the above-mentioned first yarn 12 is usually a secondary yarn in use, and the second yarn 13 is a main yarn.

[0074] Specifically, in this embodiment, if Figure 15-16As shown, the scissors 7 include a fixed scissors 71 and an active scissors 72. The fixed scissors 71 are mounted on the mounting surface 1003. The active scissors 72 are rotatably mounted on the upper end surface of the fixed scissors 71. The active scissors 72 can rotate relative to the fixed scissors 71 to cut the yarn. In order to ensure that the yarn can be stably separated from the clamping assembly 2, a spacer 25 is further arranged between the active scissors 72 and the second clamping piece 24. The spacer 25 is in contact with the upper end surface of the active scissors 72 and the lower end surface of the second clamping piece 24 respectively, and the length of the spacer 25 is equal to the main body of the second clamping piece 24. , so that there is a certain vertical distance between the second end and the cutting end of the active scissors 72, and there is no direct contact, so that the second yarn 13 will not be clamped between the second clamping part 241 and the cutting end of the active scissors 72 during cutting, so that when paying out the thread, although the third clamping part 222 and the first movable piece 21 and the second clamping part 241 and the second movable piece 23 form a thread-paying space 14 connected up and down, the second yarn 13 is still clamped between the second clamping part 241 and the cutting end of the active scissors 72 and cannot fall off.

[0075] Specifically, in the present embodiment, the transmission assembly 6 drives the movable scissors 72 to rotate relative to the fixed scissors 71 through the rotating shaft 3, so that the movable scissors 72 and the fixed scissors 71 can be closed or opened. In the present embodiment, the lower end of the rotating shaft 3 is connected to the transmission assembly 6, and the upper end of the rotating shaft 3 passes through the mounting surface 1003, the fixed scissors 71, the movable scissors 72, the spacer 25, the second clip 24, the second movable piece 23, the first clip 22, and the first movable piece 21 in sequence and is connected to the fixed piece 26, so that the fixed scissors 71, the movable scissors 72, the spacer 25, the second clip 24, the second movable piece 23, the first clip 22, and the first movable piece 21 are closed or opened. 22, and the first movable piece 21 are limited, and a fixing pin 4 is provided on the installation surface 1003, and the fixing pin 4 passes through the fixed scissors 71, the spacer 25, the second clamping piece 24, the second movable piece 23, the first clamping piece 22 and the first movable piece 21 upward in sequence, so as to position and install the fixed scissors 71, the spacer 25, the second clamping piece 24, the second movable piece 23, the first clamping piece 22 and the first movable piece 21. Specifically, in this embodiment, the upper end of the rotating shaft 3 is set as a waist-shaped column, and the main body of the fixed scissors 71, the spacer 25, the second clamping piece 24, and the first clamping piece 22 are provided with a first circular through hole and a A second circular through hole matched with the outer diameter of the fixing pin 4, so that the fixed scissors 71, the spacer 25, the second clip 24 and the first clip 22 are all fixed, and are all restricted by two holes, and are limited by the fixing plate 26, so that the fixed scissors 71, the spacer 25, the second clip 24, and the first clip 22 are easy to install; wherein the main body of the active scissors 72 is provided with a waist-shaped hole consistent with the diameter of the waist-shaped column, so that the active scissors 72 can rotate with the rotating shaft 3, and the cutting end of the active scissors 72 can be relatively close to or away from the cutting end of the fixed scissors 71; the main body of the first movable sheet 21 is provided with a first fan-shaped hole 211 and a second circular through hole 212, shaped through hole, so that the first movable piece 21 rotates around the axis of the fixed pin 4, and the upper end of the rotating shaft 3 swings relatively in the first fan-shaped hole 211, so that the first movable piece 21 rotates on the horizontal plane relative to the first clamping part 221, and the second movable piece 23 is provided with a second fan-shaped hole 231 and a second circular through hole at the main body, so that the second movable piece 23 rotates around the axis of the fixed pin 4, and the upper end of the rotating shaft 3 swings relatively in the second fan-shaped hole 231, so that the second movable piece 23 rotates on the horizontal plane relative to the second clamping part 241 and the third clamping part 222. Of course, in this embodiment, the angles of the first fan-shaped hole 211 and the second fan-shaped hole 231 are the same.

[0076] Preferably, in this embodiment, in the above-mentioned setting method, there is a certain distance between the end of the fixed scissors 71 away from the cutting end and the spacer 25. Therefore, in order to ensure the strength and hardness of the spacer 25 and more stably support the above-mentioned clamping layer, a reinforcement block 5 is arranged between the fixed scissors 71 and the spacer 25, and the height of the reinforcement block 5 is the same as the height of the movable scissors 72. The reinforcement block 5 is sleeved on the outside of the fixed pin 4, so that the fixed pin 4 passes through the fixed scissors 71, the reinforcement block 5, the spacer 25, the second clamp 24, the second movable piece 23, the first clamp 22 and the first movable piece 21 upward in sequence, so as to stabilize the structure between the entire wire clamping assembly 2 and the scissors 7 and make it more compact.

[0077] Specifically, Figure 1-3 As shown, the clamping assembly 2 also has a driving assembly 9, which includes a driving motor 91 and a driving gear 93. The driving motor 91 is installed on the left side wall of the scissors seat 1 through a motor seat 94, and the driving gear 93 is rotatably arranged on the driving shaft of the driving motor 91. The end of the first movable piece 21 away from the first clamping part 221 and the end of the second movable piece 23 away from the second clamping part 241 are both provided with driving teeth meshing with the driving gear 93, so that the first movable piece 21 and the second movable piece 23 can rotate simultaneously under the action of the driving motor 91, and the clamping action of the two layers is controlled by one driving motor 91, which has high efficiency and low energy consumption, and the transmission structure is simple with gear transmission, and the parts are easy to process; of course, in this embodiment, as Figure 9-10 As shown, the first movable piece 21 can be rotated to a certain angle, so that the end of the first movable piece 21 partially overlaps with the first clamping part 221 in the vertical direction and is in a clamping state. At this time, the second movable piece 23 has an overlapping part with the second clamping part 241 and the third clamping part 222 in the vertical direction, and the first yarn 12 and the second yarn 13 are both in a clamping state. This position is taken as the initial position, and then the driving motor 91 is used to drive the first movable piece 21 and the second movable piece 23 to rotate clockwise or counterclockwise; rotating clockwise at the initial position can obtain the following Figure 11-12 As shown, the second movable piece 23 forms a thread release space 14 with the second clamping part 241 and the third clamping part 222, the second yarn 13 is separated, and the first movable piece 21 and the first clamping part 221 continue to clamp the first yarn 12; counterclockwise rotation can obtain the following Figure 13-14As shown, the second movable piece 23 forms a wire-releasing space 14 with the second clamping part 241 and the third clamping part 222, the first movable piece 21 forms a wire-releasing space 14 with the first clamping part 221, the first yarn 12 is detached, and the second movable piece 23 continues to clamp the second yarn 13 with the second clamping part 241 and the third clamping part 222; in order to facilitate the operation of clamping and releasing the wire of the wire clamping assembly 2 every time the knitting machine is turned on, after the machine is turned on, the first movable piece 21 and the second movable piece 23 in the wire clamping assembly 2 move to the initial position, and the wire clamping assembly 2 has a corresponding induction assembly 10, wherein the driving assembly 9 also includes a driving assembly The driving column 92 is mounted on the driving shaft of the driving motor 91, and the driving gear 93 is mounted on the end of the driving column 92 away from the driving motor 91. The sensing component 10 includes a sensing sheet 101, a sensor 102 and a sensor seat 103. The sensor seat 103 is mounted on the motor seat 94, the sensing sheet 101 is mounted on the driving column 92, and the sensor 102 is mounted on the sensor seat 103. The driving column 92 can rotate under the drive of the driving motor 91, and the first movable sheet 21 and the second movable sheet 23 can be reset to their initial positions through the cooperation between the sensor 102 and the sensing sheet 101.

[0078] Specifically, Figure 1-3 As shown, the transmission assembly 6 includes a first transmission member 61, a second transmission member 62 and a rotating shaft 3. The first transmission member 61 is rotatably installed on the scissors seat 1. The first transmission member 61 and the second transmission member 62 are cooperatively connected. The lower end of the rotating shaft 3 is connected to the second transmission member 62, and the upper end of the rotating shaft 3 is connected to the main body of the active scissors 72 in the scissors 7. By rotating the first transmission member 61, the hook knife 8 moves vertically to hook the line, and at the same time drives the second transmission member 62 to rotate horizontally, thereby driving the rotating shaft 3 to rotate, thereby driving the scissors 7 to open and close.

[0079] Specifically, the scissors seat 1 is provided with a notch 1001, and the scissors seat 1 is provided with a mounting hole, a transmission shaft 11 is rotatably arranged in the mounting hole, the first transmission member 61 includes a mounting column 611 and a first mounting plate 612, wherein the mounting column 611 is provided with a transmission hole, the transmission shaft 11 is fixedly mounted on the outside of the transmission shaft 11 through the transmission hole, and the mounting column 611 is arranged at the notch 1001, and the first mounting plate 612 is arranged on the outer side wall of the mounting column 611; wherein the distances between each point of the arc surface 614 and the center line of the transmission hole of the mounting column 611 are equal, the end of the first mounting plate 612 away from the mounting column 611 has a slot 613 and a arc surface 614, wherein the arc surface 614 is connected to the slot wall of the slot 613, and the arc surface 614 corresponds to the lower part of the hook knife 8. A push pin 81 is provided, and the lower part of the hook knife 8 is slidably arranged on the slide groove 1002 provided at the lower part of the scissors seat 1, and the push pin 81 is used in conjunction with the slot 613 and the arc surface 614; specifically, when the push pin 81 is at a certain position inside the slot 613 (determined according to the design), the hook knife 8 is at the highest point, and when the push pin 81 is on the arc surface 614, the hook knife 8 is always at the lowest point; when the hook knife 8 is at the highest point, specifically, the mounting column 611 rotates clockwise, the push pin 81 moves from the inside of the slot 613 to the outside, and the hook knife 8 descends until the push pin 81 moves to the junction of the arc surface 614 and the slot 613, and the hook knife 8 moves from the highest point to the lowest point to hook the yarn, and at the same time the wire clamping assembly 2 needs to be closed, and the yarn is clamped first, and at this time the yarn is also at the cutting position, and then it is cut by the scissors 7.

[0080] Specifically, the first transmission member 61 also includes a second mounting plate 615, which is mounted on the outer side wall of the mounting cylinder, and the second mounting plate 615 is located on the left side of the first mounting plate 612, wherein a driving block is arranged on the left side of the second mounting plate 615, and an arcuate driving surface 616 is arranged at the end of the driving block away from the side wall of the second mounting plate 615, the arcuate driving surface 616 has a high point and a low point, and a first driving surface 617, a second driving surface 618 and a third driving surface 619 connected to each other are arranged at the end of the second mounting plate 615 away from the mounting column 611, the arcuate surface 614 is farther away from the mounting column 611 than the first driving surface 617, the second driving surface 618 and the third driving surface 619, and in the clockwise direction, the distances between each point of the first driving surface 617 and the center line of the transmission hole are equal, the distances between each point of the second driving surface 618 and the third driving surface 619 and the center line of the transmission hole become larger, and the arcuate driving surface 616 transitions from a high point to a low point, as shown in FIG. Figure 8 Correspondingly, the second transmission member 62 includes a rotating block 621, the rotating block 621 having a shearing portion 622 that cooperates with the arc-shaped driving surface 616 and a driving portion 623 that cooperates with the driving surface; in this embodiment, as Fig.18As shown, the initial position is defined as the scissors 7 being closed, the shearing and pressing portion 622 being located at the highest point of the arc-shaped driving surface 616, and the pusher foot 81 being located at the end of the arc-shaped surface 614; specifically, as Figure 17-21As shown, in this embodiment, the mounting post 611 rotates counterclockwise at the initial position, and the pusher foot 81 moves along the arc surface 614 toward the slot 613, during which the height of the hook knife 8 remains unchanged, and the driving portion 623 moves along the third driving surface 619, so that the rotating block 621 rotates clockwise, and the scissors 7 are initially opened, until the pusher foot 81 moves to the junction of the outer side of the slot 613 and the arc surface 614, and the driving portion 623 moves to the junction of the third driving surface 619 and the second driving surface 618, and then the mounting post 611 continues to rotate counterclockwise, and the pusher foot 81 moves into the slot 613, and the hook knife 8 starts to rise, and the driving portion 623 continues to move on the second driving surface 618, during which the rotating block 621 continues to rotate clockwise, and the scissors 7 open. The thread hook 8 is further enlarged so that the hook knife 8 can stably rise from the opening of the scissors 7, avoiding hitting the scissors 7 and the yarn can stably enter the cutting opening of the scissors 7, until the pusher foot 81 moves to a position in the slot 613, the hook knife 8 moves above the scissors, and the driving part 623 moves to the junction of the first driving surface 617 and the second driving surface 618, then the mounting column 611 continues to rotate counterclockwise, the pusher foot 81 continues to move into the slot 613, the hook knife 8 continues to rise, and the driving part 623 moves on the first driving surface 617, during which the rotating block 621 does not rotate, and the opening of the scissors 7 remains unchanged, until the pusher foot 81 moves to the first position in the slot 613, the hook knife 8 rises to the highest point to hook the thread, during which the thread clamping assembly 2 will correspond to the thread that needs to be clamped The yarn-releasing space 14 for holding the yarn is opened to prepare for the hook knife 8 to hook the thread, and at the same time, the driving part 623 moves to the head end of the first driving surface 617, and the scissors opening remains unchanged; when the hook knife is at the highest point, the pusher foot 81 is located at the first position in the slot 613, and then the mounting column 611 rotates clockwise, and the pusher foot 81 moves from the first position in the slot 613 to the outer arc surface 614, and the hook knife 8 descends, so that the yarn passes downward through the thread-releasing space 14 and the cutting opening of the scissors 7, until the pusher foot 81 moves to the junction of the slot 613 and the arc surface 614, and the hook knife 8 moves from the highest point to the lowest point, and the yarn is located in the thread-releasing space 14 and the cutting opening of the scissors 7, and then is clamped by the thread clamping assembly 2, during which the driving part 623 moves along the first driving surface 617 When moving from the head end to the tail end, the scissors 7 are in an open state, which is convenient for the yarn to pass through the cutting opening of the scissors 7. Then the mounting column 611 continues to rotate clockwise, and the pusher foot 81 moves on the arc surface 614 from the head end to the tail end. At this time, the shearing and pressing part 622 contacts the arc driving surface 616, and the shearing and pressing part 622 moves from the lowest point to the highest point of the arc driving surface 616, forcing the rotating block 621 to rotate counterclockwise, thereby causing the rotating shaft 3 to rotate counterclockwise, so that the cutting end of the active scissors 72 is close to the cutting end of the fixed scissors 71, until the shearing and pressing part 622 moves to the highest point of the arc driving surface 616, and the scissors 7 are completely closed to cut the yarn at the cutting opening; of course, after the yarn is cut, whether the clamping assembly 2 releases the wire is determined according to the specific working conditions;The above is the working process of the entire scissors 7 and hook knife 8 under the cooperation of the first transmission member 61 and the second transmission member 62, and the first mounting plate 612, the second mounting plate 615 and the mounting column 611 form the entire component in one piece. ;

[0081] Preferably, a reset member 31 is also sleeved on the outside of the rotating shaft 3, and the lower end of the reset member 31 is connected to the rotating block 621. In the initial position, when the scissors 7 are closed, the reset member 31 is in a stressed state, and the mounting column 611 rotates counterclockwise. Under the action of the reset member 31 and the second driving surface 618, the rotating block 621 rotates clockwise, and the scissors 7 are opened, making the opening of the scissors 7 more stable. Specifically, the reset member 31 is a spring.

[0082] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A scissors mechanism with double-layer wire clamping function, characterized in that: It includes a scissor seat, a transmission assembly, scissors, a hook knife and a wire clamp assembly; The upper end of the scissors seat is provided with a mounting surface, the scissors are mounted on the mounting surface, and the wire clamping assembly is arranged above the scissors; The transmission assembly is arranged on the scissor seat, and is used to control the opening and closing of the scissors and the hook knife to hook the thread, so that the scissors, the thread clamping assembly and the hook knife cooperate to cut the yarn; The wire clamping assembly comprises a first movable piece, a clamping piece and a second movable piece, wherein the clamping piece is fixedly arranged above the scissors, and the first movable piece and the second movable piece are rotatably arranged above the scissors; The clip has a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are arranged at an interval; The first movable piece rotates relative to the first clamping part, and the two partially overlap in the vertical direction to clamp the first yarn or the two are staggered in the vertical direction to form a thread-releasing space; the second movable piece rotates relative to the second clamping part, and the two partially overlap in the vertical direction to clamp the second yarn or the two are staggered in the vertical direction to form a thread-releasing space.

2. The scissors mechanism with double-layer wire clamping function according to claim 1, characterized in that: The clip includes a first clip and a second clip, the first clamping portion is provided at an end of the first clip, and the second clamping portion is provided at an end of the second clip; The first movable piece, the first clamping piece, the second movable piece and the second clamping piece are arranged in sequence from top to bottom, the second clamping piece is located above the scissors, and the first clamping piece and the second clamping piece are fixed on the mounting surface.

3. The scissors mechanism with double-layer wire clamping function according to claim 2, characterized in that: The first clamping piece further has a third clamping portion, and the third clamping portion and the first clamping portion are arranged at an interval; The second movable piece rotates relative to the third clamping part and the second clamping part, and in the vertical direction, the second movable piece partially overlaps with the third clamping part and the second clamping part to clamp the second yarn; Alternatively, in the vertical direction, the second movable piece is staggered from the third clamping portion and the second clamping portion to form a wire-releasing space.

4. The scissors mechanism with double-layer wire clamping function according to claim 3, characterized in that: The scissors include fixed scissors and movable scissors, the fixed scissors are mounted on the mounting surface, the movable scissors are rotatably mounted on the upper end surface of the fixed scissors, and the movable scissors are connected to the transmission assembly via a rotating shaft; The wire clamping assembly further comprises a spacer, which is located between the scissors and the second clamping piece and abuts against the two, so that the second clamping portion and the upper end surface of the active scissors are spaced apart.

5. The scissors mechanism with double-layer wire clamping function according to claim 4, characterized in that: The lower end of the rotating shaft is connected to the transmission assembly, and the upper end passes through the mounting surface, the fixed scissors, the movable scissors, the spacer, the second clamping piece, the second movable piece, the first clamping piece and the first movable piece in sequence upward and is connected to the fixed piece, the movable scissors can rotate with the rotating shaft, and the first movable piece and the second movable piece swing in the horizontal direction relative to the rotating shaft; A fixing pin is arranged on the mounting surface, and the fixing pin passes upward through the fixed scissors, the spacer, the second clamp, the second movable piece, the first clamp and the first movable piece in sequence; the first movable piece and the second movable piece rotate relative to the fixing pin.

6. The scissors mechanism with double-layer wire clamping function according to claim 1, characterized in that: The transmission assembly includes a first transmission member, a second transmission member and a rotating shaft, wherein the lower end of the rotating shaft is connected to the second transmission member, and the upper end of the rotating shaft passes through the mounting surface and is connected to the scissors, and the first transmission member cooperates with the second transmission member to control the rotating shaft to open and close the scissors; The first transmission member includes a mounting post, which is rotatably disposed on a notch disposed in the scissor seat and connected to a transmission shaft; A first mounting plate is disposed outside the mounting column, and an end of the first mounting plate away from the mounting column is provided with a slot and an arcuate surface connected to the slot wall, and the distances between each point of the arcuate surface and the center line of the transmission hole of the mounting column are equal; The lower end of the hook knife is slidably arranged on the scissor seat, the hook knife is located between the first mounting plate and the inner side wall of the scissor seat, and a pusher foot is arranged in the middle of the hook knife; The pusher foot is located at a first position inside the slot, the hook knife is located at the highest point, the pusher foot is on an arc surface, and the hook knife is located at the lowest point; The mounting column rotates clockwise, the pushing foot moves outward from the first position on the inner side of the slot, and the hook knife descends until the pushing foot moves to the junction of the arc surface and the arc surface, and the hook knife moves from the highest point to the lowest point to hook the yarn, the thread clamping assembly closes first to clamp the yarn, and then the scissors close and cut.

7. The scissors mechanism with double-layer wire clamping function according to claim 6, characterized in that: The outer wall of the mounting column is provided with a second mounting plate, the second mounting plate is located on the left side of the first mounting plate, an arc-shaped driving surface is provided on the left side of the second mounting plate, and the end of the second mounting plate away from the mounting column is provided with a first driving surface, a second driving surface and a third driving surface connected in sequence, in the clockwise direction, the distances between each point of the first driving surface and the center line of the transmission hole are equal, and the distances between each point of the second driving surface and the third driving surface and the center line of the transmission hole become larger; The second transmission member comprises a rotating block, wherein the rotating block has a shearing and pressing portion matched with the arc-shaped driving surface and a driving portion matched with the driving surface; In the initial position, the scissors are closed, the shearing and pressing part is located at the highest point of the arc-shaped driving surface, and the pusher foot is located at the end of the arc-shaped surface; The mounting post rotates counterclockwise in the initial position, the pushing foot moves along the arc surface in the direction of the slot, the height of the hook knife remains unchanged, and at the same time, the driving part moves along the third driving surface, the rotating block rotates clockwise, and the scissors open, until the pushing foot moves to the junction of the slot and the arc surface, the driving part moves to the junction of the third driving surface and the second driving surface, and then the mounting post continues to rotate counterclockwise, the pushing foot moves into the slot, the hook knife starts to rise, and at the same time, the driving part moves on the second driving surface, the rotating block continues to rotate clockwise, and the scissors continue to open, and then the mounting post continues to rotate counterclockwise, the pushing foot continues to move into the slot, the hook knife continues to rise, and at the same time, the driving part moves on the first driving surface, the rotating block does not rotate, and the opening of the scissors remains unchanged, until the pushing foot moves to the first position in the slot, the hook knife moves to the highest point, and the driving part moves to the first end of the first driving surface; When the hook knife is at the highest point, the mounting column rotates clockwise at the initial position, the pushing foot moves outward from the first position in the slot, and the hook knife descends. At this time, the wire clamping assembly is in a wire-releasing state, until the pushing foot moves to the junction of the slot and the arc surface, the hook knife moves to the lowest point, and the shearing and pressing part contacts the lowest point of the arc driving surface, and then the mounting column continues to rotate clockwise, the pushing foot moves on the arc surface, and then the position of the hook knife remains unchanged, and at the same time, the shearing and pressing part starts to move along the arc driving surface, and the scissors start to close, until the pushing foot moves to the end of the arc surface, the shearing and pressing part moves to the highest point of the arc driving surface, and the scissors are completely closed.

8. The scissors mechanism with double-layer wire clamping function according to claim 7, characterized in that: A reset piece is sleeved on the outer side of the rotating shaft, and the lower end of the reset piece is connected to the rotating block; At the initial position, when the scissors are closed, the reset member is in a stressed state, the mounting post rotates counterclockwise, the reset member causes the rotating block to rotate clockwise, and the scissors open.

9. The scissors mechanism with double-layer wire clamping function according to any one of claims 1 to 8, characterized in that: It also includes a driving component, which includes a driving motor and a driving gear. The driving motor is installed on the scissors seat through a motor seat. The driving gear is rotatably arranged on the driving shaft of the driving motor. The end of the first movable piece away from the first clamping part and the end of the second movable piece away from the second clamping part are both provided with driving teeth meshing with the driving gear.

10. The scissors mechanism with double-layer wire clamping function according to claim 9, characterized in that: Also included is a sensing component for determining an initial position; The driving assembly further comprises a driving column, wherein the driving column is mounted on a driving shaft of the driving motor, and the driving gear is mounted on an end of the driving column away from the driving motor; The induction component comprises an induction sheet, an inductor and an inductor seat, wherein the inductor seat is mounted on the motor seat, the induction sheet is mounted on the driving column, and the inductor is mounted on the inductor seat.

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