Wire cutting mechanism

Abstract

The invention relates to the technical field of textile equipment, in particular to a thread cutting mechanism which comprises a rack, an upper clamp, a textile thread cutter and a lower clamp, all the parts are arranged on the rack from top to bottom, a thread sequentially penetrates through a corresponding clamping opening and a cutting opening, the position of the upper clamp is fixed, and the textile thread cutter and the lower clamp can longitudinally and synchronously move. The lower clamp is divided into a first height, a second height and a third height, the rack is provided with a height adjusting mechanism to drive the upper clamp to be switched at the corresponding height, the lower clamp descends to the second height, and the upper clamp and the lower clamp clamp wires; and before, the lower clamp and the spinning thread cutter firstly move downwards, clamp the thread at a preset position and then descend for cutting, so that the problem of looseness of the thread during thread cutting is solved, stable and accurate cutting is ensured, the lower clamp and the spinning thread cutter are reset after cutting to expose a thread end, a worker is helped to draw the thread quickly, the thread arranging efficiency is improved, and the operation convenience is improved. And reliable guarantee is provided for production efficiency increase.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to a thread cutting mechanism. Background Art

[0002] When textile equipment is performing a textile task, a large number of textile threads need to be cut and then rearranged. However, when the existing cutting devices perform the cutting task, the cut surface is often rough and fails to achieve a smooth effect. In addition, it is difficult for these cutting devices to accurately reserve the appropriate length of the tail end of the textile thread, which makes the subsequent rearrangement operation complicated, seriously affecting the overall work efficiency and weakening the continuity and efficiency of the textile production process.

[0003] Chinese patent publication number CN217499757U introduces a novel thread cutting device for a large circular knitting machine, comprising a limit ring and a clamping assembly for clamping a textile thread. The clamping assembly comprises a plurality of sliding grooves arranged on the inner arc surface of the limit ring, a clamping block located in the sliding groove, a sliding rod connected to one side of the clamping block, a return spring sleeved on the sliding rod, a plurality of connecting columns fixed to one side of the limit ring, a squeezing disk installed at one end of the connecting column, a plurality of wire holes opened in the middle of one side of the limit ring, and a cutting component installed on one side of the clamping block.

[0004] The tangent device completes the cutting of the wire by setting components such as a limit ring, a sliding groove, a clamping block, a sliding rod, a reset spring, a connecting column, an extrusion disk and a wire hole. However, for the operating mechanism of the tangent device, when performing the tangent operation, the wire must be kept in a tensioned state to ensure the accuracy and stability of the tangent action. In the actual textile production environment, due to the complexity and dynamic changes of the environment, it is not always easy to maintain the tension state of the wire, and sometimes the wire will become loose. Once the wire is loose, the tangent device will not be able to smoothly perform the cutting action according to the predetermined program, and the cutting tool may not be able to accurately act on the target wire, resulting in the problem of normal cutting failure, which directly hinders the continuous advancement of the production process.

[0005] In addition, after the wire cutting operation is completed, the key step of re-arranging the wires is required. During this process, the cut wire ends need to be pulled out from the smaller wire holes in order to start the subsequent wiring work. Due to the small diameter of the wire holes, the wire end extraction process may encounter difficulties, such as jamming or entanglement. These problems not only increase time and labor costs, but also slow down the entire production rhythm, inevitably reducing overall work efficiency. Summary of the invention

[0006] In view of the problems of the prior art, a wire cutting mechanism is provided. An upper clamp, a textile wire cutter and a lower clamp are arranged in a frame. Before cutting the wire, the lower clamp and the textile wire cutter can be moved down a certain distance relative to the upper clamp. The upper clamp and the lower clamp can then clamp the wire. Moreover, the lower clamp and the textile wire cutter can only cut the tensioned wire after they continue to descend a certain distance. This solves the problem that the wire of the existing wire cutting device is prone to loosening during cutting.

[0007] To solve the problems of the prior art, the present invention provides a wire cutting mechanism, comprising a frame, an upper clamp, a textile wire cutter and a lower clamp; a frame; the upper clamp, the textile wire cutter and the lower clamp are arranged in the frame from top to bottom in sequence, the wire passes through the upper clamping opening of the upper clamp, the cutting opening of the textile wire cutter and the lower clamping opening of the lower clamp in sequence from top to bottom, the position of the upper clamp is fixed, the textile wire cutter is connected to the lower clamp and can move synchronously in the longitudinal direction; the lower clamp has a first height, a second height and a third height in sequence from top to bottom in the displacement direction; a height adjustment mechanism for driving the lower clamp to move from the first height to the second height and the third height is arranged in the frame; after the lower clamp descends from the first height to the second height, the upper clamp and the lower clamp synchronously clamp the wire; when the lower clamp descends from the second height to the third height, the upper clamp and the lower clamp clamp the wire while the textile wire cutter cuts the wire at the third height.

[0008] Preferably, the frame includes an upper support ring, a lower support ring and a column; the upper support ring; the lower support ring is arranged at the bottom of the upper support ring and is coaxial with the upper support ring; the column is arranged between the upper support ring and the lower support ring along the circumference of the upper support ring and the lower support ring, the top of the column is fixedly connected to the bottom end of the upper support ring, and the bottom end of the column is fixedly connected to the top end of the lower support ring; the height adjustment mechanism includes a lifting plate and a lifting drive; the lifting plate is arranged between the upper support ring and the lower support ring, the textile thread cutter is arranged at the top of the lifting plate, and the lower clamp is arranged at the bottom end of the lifting plate; the lifting drive is arranged at the top of the upper support ring and is transmission-connected to the lifting plate.

[0009] Preferably, the lifting drive includes an electromagnetic coil, a magnetic ring, a driving rod and an elastic reset element; the electromagnetic coil is coaxially arranged on the top of the upper support ring; the magnetic ring is coaxially arranged on the top of the electromagnetic coil; the driving rod slides longitudinally through the upper support ring, the top end of the driving rod is connected to the magnetic ring, and the bottom end of the driving rod is connected to the lifting plate; the elastic reset element is sleeved on the driving rod and is located between the magnetic ring and the upper support ring.

[0010] Preferably, the frame also includes a fixed plate arranged between the upper support ring and the lower support ring; the upper clamp includes two upper clamping blocks slidably arranged at the bottom end of the fixed plate, and an upper through-hole is provided on the fixed plate, and the upper through-hole is located at the top end of the two upper clamping blocks; the back sides of the two upper clamping blocks are provided with upper push rods extending along their sliding direction; an upper driving block is provided on the driving rod, and an upper inclined surface is provided at one end of the upper driving block facing the axis of the upper support ring, and an upper avoidance opening located at the bottom of the upper driving block is provided on the fixed plate, and when the upper driving block moves downward, the upper push rod abuts on the upper inclined surface and moves in the radial direction of the upper support ring; an upper positioning seat is provided at the bottom end of the fixed plate, the upper push rod slides through the upper positioning seat and is provided with an upper push ring, and an upper elastic clamping element is provided between the upper positioning seat and the upper push ring.

[0011] Preferably, an upper mounting opening is provided in the upper clamping block, an upper push rod slides through the upper mounting opening, an upper limit ring located in the upper mounting opening is provided on the upper push rod, and an upper elastic buffer element is provided between the upper limit ring and one end of the upper mounting opening facing away from the wire.

[0012] Preferably, the lower clamp includes two lower clamping blocks which are slidably arranged at the bottom end of the lifting plate, and the lifting plate is provided with a lower through-opening located at the top end of the two lower clamping blocks; the back sides of the two lower clamping blocks are provided with lower push rods extending along their sliding direction; a stand is also provided between the fixed plate and the lower support ring and located on the back sides of the two lower clamping blocks, and the side of the stand facing the wire is provided with an upper vertical surface, an inclined surface and a lower vertical surface from top to bottom in sequence, and the end face of the lower push rod is abutted against the stand; a lower sliding seat is also provided at the bottom end of the lifting plate, the lower push rod slides through the lower sliding seat and is provided with a lower push ring, and a lower elastic clamping element is provided between the lower sliding seat and the lower push ring.

[0013] Preferably, a lower mounting opening is provided in the lower clamping block, a lower push rod slides through the lower mounting opening, a lower limit ring located in the lower mounting opening is provided on the lower push rod, and a lower elastic buffer element is provided between the lower limit ring and one end of the lower mounting opening facing away from the wire.

[0014] Preferably, the textile thread cutter comprises a cutting seat and an elastic cutting element; there are two cutting seats, both of which are provided with blades inclined thereon; a limit seat located on the displacement path of the cutting seat is provided on the lifting plate, and the elastic cutting element is provided between the cutting seat and the limit seat; an execution block is provided at one end of the cutting seat away from the limit seat, and an inclined groove is provided at the downward end of the execution block; a trigger block capable of abutting against the inclined groove is provided on the lower support ring.

[0015] Preferably, an upper positioning ring is provided at the top of the magnetic ring, an upper connecting rod connected to the magnetic ring is provided on the outer wall of the upper positioning ring, a lower positioning ring coaxial with the upper positioning ring is provided at the bottom end of the lifting plate, a lower connecting rod connected to the lifting plate is provided on the outer wall of the lower positioning ring, and the wire passes through the upper positioning ring and the lower positioning ring in sequence from top to bottom.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present application designs and installs an upper clamp, a textile wire cutter and a lower clamp in a frame. Before the wire is cut, the lower clamp and the textile wire cutter can be moved down a certain distance relative to the upper clamp in the vertical direction. When the lower clamp and the textile wire cutter move downward to a predetermined position, the wire to be cut can be effectively clamped. Subsequently, as the lower clamp and the textile wire cutter continue to descend, the textile wire cutter can cut the tensioned wire. This design effectively solves the problem of the existing wire cutting device that the wire is easy to loosen during the cutting process, and ensures the stability and accuracy of the cutting process.

[0018] In addition, after the cutting action is completed, the lower clamp and the textile wire cutter can automatically reset to expose the wire end. In this way, the staff can quickly pull the wire out of the device when arranging the wire next time, which significantly improves the efficiency of arranging the wire and reduces the operation time. It not only optimizes the accuracy and efficiency of wire cutting, but also improves the convenience of equipment operation, providing higher operating efficiency and reliability in the actual production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of the tangent mechanism of the present invention at a first viewing angle.

[0020] Figure 2 It is a stereoscopic diagram of the tangent mechanism of the present invention under a second viewing angle.

[0021] Figure 3 It is a stereoscopic diagram of the tangent mechanism of the present invention at a third viewing angle.

[0022] Figure 4 It is a cross-sectional view of the tangent mechanism of the present invention.

[0023] Figure 5 yes Figure 4 A partial enlarged view of point A.

[0024] Figure 6 yes Figure 4 A partial enlarged view of point B.

[0025] Figure 7 It is a three-dimensional diagram of the upper clamp in the tangent mechanism of the present invention.

[0026] Figure 8 It is a stereoscopic view of a textile thread cutter in the thread cutting mechanism of the present invention.

[0027] Fig. 9 It is a three-dimensional diagram of the lower clamp in the tangent mechanism of the present invention.

[0028] Fig.10It is a front view of the tangent mechanism of the present invention.

[0029] The numbers in the figure are: 1, frame; 11, upper support ring; 12, lower support ring; 121, trigger block; 13, column; 14, fixing plate; 141, upper positioning seat; 15, seat; 2, upper clamp; 21, upper clamp block; 22, upper push rod; 221, upper push ring; 222, upper limit ring; 23, upper drive block; 24, upper elastic clamping element; 25, upper elastic buffer element; 3, textile thread cutter; 31, cutting seat; 311, blade; 312, execution Row block; 32, elastic cutting element; 4, lower clamp; 41, lower clamp block; 42, lower push rod; 421, lower push ring; 422, lower limit ring; 43, lower elastic clamping element; 44, lower elastic buffer element; 5, height adjustment mechanism; 51, lifting plate; 511, lower sliding seat; 512, limit seat; 521, electromagnetic coil; 522, magnetic ring; 523, driving rod; 524, elastic reset element; 61, upper positioning ring; 62, lower positioning ring. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 , Figure 2 , Figure 3 and Fig.10 As shown, the present application provides a thread cutting mechanism, including a frame 1, an upper clamp 2, a textile thread cutter 3 and a lower clamp 4; The frame 1 is fixedly arranged on the textile equipment; the upper clamp 2, the textile thread cutter 3 and the lower clamp 4 are arranged in the frame 1 from top to bottom, and the wire passes through the upper clamping port of the upper clamp 2, the cutting port of the textile thread cutter 3 and the lower clamping port of the lower clamp 4 from top to bottom, the position of the upper clamp 2 is fixed, the textile thread cutter 3 is connected to the lower clamp 4 and can move synchronously in the longitudinal direction; the lower clamp 4 has a first height, a second height and a third height from top to bottom in the displacement direction; the frame 1 is provided with a height adjustment mechanism 5 for driving the lower clamp 4 to move from the first height to the second height and the third height; after the lower clamp 4 descends from the first height to the second height, the upper clamp 2 and the lower clamp 4 synchronously clamp the wire; when the lower clamp 4 descends from the second height to the third height, the upper clamp 2 and the lower clamp 4 clamp the wire while the textile thread cutter 3 cuts the wire at the third height.

[0032] The frame 1 is fixedly mounted on the designated installation position of the textile equipment in a stable manner, providing a solid bearing foundation and spatial positioning reference for the entire tangent mechanism. An orderly assembly space is formed inside the frame 1 to adapt to the precise layout of subsequent components.

[0033] The upper clamp 2, the textile wire cutter 3 and the lower clamp 4 are arranged in a sequence from top to bottom in the frame 1 along the vertical direction, and together constitute the wire processing operation. The wire follows a specific threading path, starting from the top, and sequentially passes through the upper clamping opening of the upper clamp 2, the cutting opening of the textile wire cutter 3, and finally passes through the lower clamping opening of the lower clamp 4, thereby completing the initial positioning of the wire to be cut in the mechanism. In this layout, the position of the upper clamp 2 is maintained constant as a static positioning reference; the textile wire cutter 3 is integrated with the lower clamp 4 into a linkage module, which has the ability to coordinate displacement in the longitudinal direction to ensure the consistency and continuity of the action.

[0034] The lower clamp 4 is divided into three key nodes of the first height, the second height and the third height in the vertical displacement dimension. To match this, the frame 1 is provided with a height adjustment mechanism 5 inside, which is specifically responsible for driving the lower clamp 4 and the textile thread cutter 3 connected thereto, so as to enable them to switch accurately between the above different heights.

[0035] When the operation process starts, the lower clamp 4 starts to descend from the first height under the drive of the height adjustment mechanism 5, and when it reaches the second height, the precise clamping synchronization mechanism is triggered. At this moment, the upper clamp 2 and the lower clamp 4 clamp the wire synchronously, laying a solid foundation for the subsequent cutting action. As the driving process continues to advance, the lower clamp 4 continues to descend from the second height to the third height. In this dynamic process, the upper clamp 2 and the lower clamp 4 always maintain a stable clamping state on the wire. At the same time, the wire between the upper clamp 2 and the lower clamp 4 is tightened to ensure that the wire is in a tensioned state before being cut. At the same time, the textile wire cutter 3, with its own sharp cutting edge, acts precisely on the wire at the third height position, instantly completes the cutting action, and achieves a high-precision tangent operation process.

[0036] After the cutting action is completed, the lower clamp 4 and the textile wire cutter 3 are reset to expose the wire end. In this way, the staff can quickly pull the wire out of the wire cutting mechanism when arranging the wire next time, thereby significantly improving the efficiency of arranging the wire and reducing the operation time.

[0037] like Figure 1 and Figure 2As shown, the frame 1 includes an upper support ring 11, a lower support ring 12 and a column 13; the upper support ring 11; the lower support ring 12 is arranged at the bottom of the upper support ring 11 and is coaxial with the upper support ring 11; the column 13 is arranged between the upper support ring 11 and the lower support ring 12 along the circumferential direction of the upper support ring 11 and the lower support ring 12, the top of the column 13 is fixedly connected to the bottom end of the upper support ring 11, and the bottom end of the column 13 is fixedly connected to the top end of the lower support ring 12; the height adjustment mechanism 5 includes a lifting plate 51 and a lifting drive; the lifting plate 51 is arranged between the upper support ring 11 and the lower support ring 12, the textile thread cutter 3 is arranged at the top of the lifting plate 51, and the lower clamp 4 is arranged at the bottom end of the lifting plate 51; the lifting drive is arranged at the top of the upper support ring 11 and is transmission-connected to the lifting plate 51.

[0038] The frame 1, as the supporting structure of the entire tangent mechanism, is mainly composed of three parts: the upper support ring 11, the lower support ring 12 and the column 13. Among them, the upper support ring 11 is installed in a specific adaptation position of the textile equipment. With the help of professional assembly technology, a stable and accurate positioning effect is achieved, and a high-level load-bearing benchmark is built for subsequent components. The lower support ring 12 is installed at the bottom of the upper support ring 11, and its geometric center axis is strictly coaxial with the upper support ring 11, so as to ensure the symmetry and stability of the entire frame 1 structure in the spatial layout, and lay the foundation for the spatial layout of subsequent operation processes.

[0039] The columns 13 are evenly spaced along the circumference of the upper support ring 11 and the lower support ring 12, forming a stable vertical support system. From the perspective of the connection relationship, the top of the column 13 is firmly locked with the bottom of the upper support ring 11 using a high-strength fixed connection process; its bottom is also tightly connected to the top of the lower support ring 12 in a stable connection manner, so that the upper support ring 11, the lower support ring 12 and the columns 13 together form a stable frame structure that has the ability to withstand complex stresses and loads.

[0040] The height adjustment mechanism 5 bears the key responsibility of driving the lower clamp 4 and the textile thread cutter 3 to move precisely. The lifting plate 51 is arranged in the space area enclosed by the upper support ring 11 and the lower support ring 12. The textile thread cutter 3 is firmly placed on the top of the lifting plate 51 with the help of precise assembly technology, and the lower clamp 4 is correspondingly installed on the bottom of the lifting plate 51. The three form an integrated linkage structure and can work together. The lifting drive is placed on the top of the upper support ring 11, and is connected to the lifting plate 51 through the matching transmission components. Then, according to the preset control instructions, the lifting plate 51 and its auxiliary components can be accurately driven to perform lifting actions in the vertical direction to meet the operation requirements of different height positions in the tangent process.

[0041] like Figure 4 and Figure 5As shown, the lifting drive includes an electromagnetic coil 521, a magnetic ring 522, a driving rod 523 and an elastic reset element 524; the electromagnetic coil 521 is coaxially arranged on the top of the upper support ring 11; the magnetic ring 522 is coaxially arranged on the top of the electromagnetic coil 521; the driving rod 523 slides longitudinally through the upper support ring 11, the top end of the driving rod 523 is connected to the magnetic ring 522, and the bottom end of the driving rod 523 is connected to the lifting plate 51; the elastic reset element 524 is sleeved on the driving rod 523 and is located between the magnetic ring 522 and the upper support ring 11.

[0042] The electromagnetic coil 521 is coaxially installed at the top of the upper support ring 11 to ensure that it is completely aligned with the axis of the upper support ring 11, thereby maintaining the mechanical and electromagnetic stability of the entire structure. The electromagnetic coil 521 is carefully wound with suitable electromagnetic materials, and can quickly generate a magnetic field with controllable strength based on the principle of electromagnetic induction when powered on, providing basic electromagnetic driving force for subsequent driving actions.

[0043] The magnetic ring 522 also follows the coaxial layout principle and is placed on top of the electromagnetic coil 521 to ensure the high efficiency of magnetic field transmission and force transmission. The magnetic ring 522 can be attracted by the magnetic field generated by the electromagnetic coil 521 to accumulate power for subsequent mechanical transmission.

[0044] The top end of the driving rod 523 is connected to the magnetic ring 522 , and the bottom end of the driving rod 523 is connected to the lifting plate 51 , ensuring that power can be accurately transmitted to the lifting plate 51 to drive it to perform the lifting action.

[0045] The elastic reset element 524 is tightly mounted on the driving rod 523, in a specific area between the magnetic ring 522 and the upper support ring 11. When the electromagnetic coil 521 is powered off and the magnetic ring 522 loses its downward electromagnetic attraction, the elastic reset element 524 immediately releases the stored elastic potential energy, and pushes the driving rod 523 in the opposite direction with its own elastic force, causing the lifting plate 51 to quickly return to the initial position, thereby ensuring that the entire lifting drive system has a reliable reset capability.

[0046] like Figure 1 , Figure 5 and Figure 7As shown, the frame 1 also includes a fixed plate 14 arranged between the upper support ring 11 and the lower support ring 12; the upper clamp 2 includes two upper clamping blocks 21 slidably arranged at the bottom end of the fixed plate 14, and an upper through-hole is opened on the fixed plate 14, and the upper through-hole is located at the top of the two upper clamping blocks 21; the back sides of the two upper clamping blocks 21 are provided with upper push rods 22 extending along their sliding direction; an upper driving block 23 is provided on the driving rod 523, and an upper inclined surface is provided at one end of the upper driving block 23 facing the axis of the upper support ring 11, and an upper avoidance opening located at the bottom of the upper driving block 23 is opened on the fixed plate 14. When the upper driving block 23 moves downward, the upper push rod 22 abuts on the upper inclined surface and moves in the radial direction of the upper support ring 11; an upper positioning seat 141 is provided at the bottom end of the fixed plate 14, and the upper push rod 22 slides through the upper positioning seat 141 and is provided with an upper push ring 221, and an upper elastic clamping element 24 is provided between the upper positioning seat 141 and the upper push ring 221.

[0047] A fixing plate 14 is provided in the frame 1 , and is located between the upper support ring 11 and the lower support ring 12 , playing a key role in stabilizing the connection and assisting in positioning.

[0048] The upper clamp 2 is mainly composed of two upper clamping blocks 21, which are installed at the bottom end of the fixed plate 14 in a sliding manner. An upper through-hole is opened on the fixed plate 14, which is located at the top of the two upper clamping blocks 21. This through-hole is reserved for the wire to be processed to ensure that the wire can pass smoothly for subsequent clamping operations.

[0049] On the back side of the two upper clamping blocks 21, an upper push rod 22 is provided, which extends linearly along the sliding direction of the upper clamping block 21, and becomes a key force-bearing component for subsequently driving the upper clamping block 21 to cooperate with each other. From the perspective of mechanical conduction, the upper push rod 22 is closely connected with the upper clamping block 21, forming a stable force conduction, ensuring that the external driving force can accurately act on the upper clamping block 21.

[0050] The driving rod 523 is a key component for power transmission, and is equipped with an upper driving block 23. The upper driving block 23 is machined with an upper inclined surface at one end corresponding to the axial direction of the upper support ring 11. The inclined surface has a specific inclination angle and is used to convert the direction of the driving force. To match this, an upper avoidance opening is also chiseled out on the fixed plate 14, and its position is exactly at the bottom of the upper driving block 23. This design ensures that the upper driving block 23 is not hindered by the fixed plate 14 when it moves vertically downward. When this movement occurs, the upper abutment rod 22 will accurately abut against a specific slope portion on the upper inclined surface, and then, under the guidance of the inclined surface, it will move steadily in the radial direction of the upper support ring 11, thereby driving the two upper clamping blocks 21 to slide toward each other and perform the clamping task.

[0051] At the bottom end of the fixed plate 14, an upper positioning seat 141 is provided, and the upper push rod 22 smoothly slides through the upper positioning seat 141, and is equipped with an upper push ring 221 at its end. An upper elastic clamping element 24 is arranged between the upper positioning seat 141 and the upper push ring 221, which maintains a certain pre-tightening force under normal conditions, which can not only ensure that the upper clamping block 21 maintains the initial separation state when not driven, but also provide reverse elastic force to assist in resetting when stressed, so that the clamping action of the upper clamping block 21 is accurate and can be flexibly adjusted.

[0052] like Figure 5 As shown, an upper mounting opening is provided in the upper clamping block 21, and an upper push rod 22 slides through the upper mounting opening. An upper limit ring 222 located in the upper mounting opening is also provided on the upper push rod 22, and an upper elastic buffer element 25 is provided between the upper limit ring 222 and one end of the upper mounting opening facing away from the wire.

[0053] An upper mounting opening is provided inside the upper clamping block 21 to provide an adaptable through passage for the upper push rod 22 to ensure a stable and smooth assembly relationship between the two.

[0054] The upper push rod 22 slides through the upper mounting opening. During this process, an upper limit ring 222 is additionally provided on the upper push rod 22 within the range of the upper mounting opening. The upper limit ring 222 is tightly sleeved on the upper push rod 22, and forms an integrated limit structure with the upper push rod 22. Its main function is to accurately define the sliding travel range of the upper push rod 22 relative to the upper clamping block 21, prevent mechanical failure caused by excessive displacement, and ensure the reliability of the entire driving and clamping mechanism.

[0055] An upper elastic buffer element 25 is arranged between the upper limit ring 222 and the end of the upper installation opening facing away from the wire. When the upper push rod 22 is displaced by force, the upper elastic buffer element 25 immediately plays a buffering role, absorbs and transforms excess kinetic energy, avoids damage to components due to rigid impact, and enables the two upper clamping blocks 21 to elastically clamp the wire to avoid the wire being torn due to excessive tension of the lower clamp 4.

[0056] like Figure 4 , Figure 6 and Fig. 9As shown, the lower clamp 4 includes two lower clamping blocks 41 which are slidably arranged at the bottom end of the lifting plate 51 towards each other, and the lifting plate 51 is provided with a lower through-hole located at the top of the two lower clamping blocks 41; the back sides of the two lower clamping blocks 41 are provided with lower push rods 42 extending along their sliding direction; a stand 15 located on the back sides of the two lower clamping blocks 41 is also provided between the fixed plate 14 and the lower support ring 12, and the stand 15 is provided with an upper vertical surface, an inclined surface and a lower vertical surface from top to bottom on the side facing the wire, and the end face of the lower push rod 42 is abutted against the stand 15; a lower sliding seat 511 is also provided at the bottom end of the lifting plate 51, the lower push rod 42 slides through the lower sliding seat 511 and is provided with a lower push ring 421, and a lower elastic clamping element 43 is provided between the lower sliding seat 511 and the lower push ring 421.

[0057] The two lower clamping blocks 41 are installed at the bottom of the lifting plate 51 in a sliding arrangement. The lifting plate 51 is provided with a lower through-hole, which is located at the top area of ​​the two lower clamping blocks 41, opening a smooth passage for the wire to be processed, so that the wire can be accurately positioned for subsequent clamping operations.

[0058] On the back side of the two lower clamping blocks 41, a lower push rod 42 extending linearly along the sliding direction is arranged. The lower push rod 42 fits tightly with the lower clamping block 41 to build a stable force transmission, ensuring that the external driving force can be efficiently transmitted to drive the lower clamping block 41 to perform precise sliding action towards each other.

[0059] A stand 15 is provided between the fixed plate 14 and the lower support ring 12, and the stand 15 is positioned on the back side of the two lower clamping blocks 41. The stand 15 presents a unique geometric shape of an upper vertical surface, an inclined surface and a lower vertical surface from top to bottom on the side facing the wire. The end face of the lower push rod 42 is precisely abutted on the stand 15, and the movement state of the lower push rod 42 and the lower clamping block 41 connected thereto is regulated by means of the special structure of different planes of the stand 15. When the lower push rod 42 is moved by force, the contact relationship with each plane of the stand 15 changes dynamically, accurately guiding the lower clamping block 41 to complete a complex and orderly clamping action. That is, when the lower push rod 42 abuts on the upper vertical surface and slides, the lower clamp 4 moves from the first height to the second height; when the lower push rod 42 abuts on the inclined surface and the lower vertical surface and slides, the lower clamp 4 continues to descend while performing a clamping operation on the wire, that is, the lower clamp 4 moves from the second height to the third height.

[0060] A lower sliding seat 511 is mounted at the bottom end of the lifting plate 51. The lower push rod 42 slides through the lower sliding seat 511, and a lower push ring 421 is arranged at its end. A lower elastic clamping element 43 is installed between the lower sliding seat 511 and the lower push ring 421. When the end of the push rod slides on the side of the stand 15, the lower elastic clamping element 43 can provide the necessary pre-tightening force for the lower clamping block 41 to maintain stability in the initial state, and can also buffer energy during the force-bearing process, assisting the lower clamping block 41 to flexibly reset, thereby ensuring the stability and accuracy of the entire lower clamping fixture 4 system.

[0061] like Figure 6 As shown, a lower mounting opening is provided in the lower clamping block 41, and a lower push rod 42 slides through the lower mounting opening. A lower limiting ring 422 located in the lower mounting opening is also provided on the lower push rod 42, and a lower elastic buffer element 44 is provided between the lower limiting ring 422 and one end of the lower mounting opening facing away from the wire.

[0062] A lower mounting opening is provided in the lower clamping block 41. The lower push rod 42 slides through the above-mentioned predetermined lower mounting opening in a coaxial and smooth manner. During this penetration process, the lower push rod 42 is additionally provided with a lower limit ring 422, and the lower limit ring 422 is placed within the range of the lower mounting opening. The lower limit ring 422 and the lower push rod 42 form a nested relationship, and the two cooperate to form a stable limit structure module. With the help of the lower limit ring 422, the sliding travel range of the lower push rod 42 relative to the lower clamping block 41 can be defined very accurately, effectively avoiding various hidden dangers of mechanical failures that may be caused by excessive displacement of the lower push rod 42, and providing a solid and reliable operation guarantee for the entire mechanical transmission and clamping action process.

[0063] A lower elastic buffer element 44 is arranged between the lower limit ring 422 and the end of the lower installation opening facing away from the wire, so that the lower clamping block 41 can elastically clamp the wire to prevent the lower clamping block 41 from breaking the wire while clamping the wire and moving downward.

[0064] like Figure 8 As shown, the textile thread cutter 3 includes a cutting seat 31 and an elastic cutting element 32; there are two cutting seats 31, and blades 311 are obliquely arranged on both cutting seats 31; a limiting seat 512 located on the displacement path of the cutting seat 31 is arranged on the lifting plate 51, and the elastic cutting element 32 is arranged between the cutting seat 31 and the limiting seat 512; an execution block 312 is arranged at one end of the cutting seat 31 away from the limiting seat 512, and an inclined groove is arranged at the downward end of the execution block 312; a trigger block 121 that can abut on the inclined groove is arranged on the lower support ring 12.

[0065] There are two cutting seats 31, and this double-body structure design meets the mechanical characteristics and precision requirements of the cutting action. Each cutting seat 31 is equipped with a blade 311, and the blade 311 is arranged in an inclined shape to maximize the specific value of cutting efficiency, ensure that the blade and the wire surface form an ideal cutting angle at the moment of cutting, reduce cutting resistance, and improve the neatness of cutting.

[0066] A limit seat 512 is arranged on the lifting plate 51. The limit seat 512 is located on the displacement path of the cutting seat 31, providing precise guidance and travel limit for the movement of the cutting seat 31, thereby ensuring the accuracy and stability of the cutting action. The elastic cutting element 32 is arranged between the cutting seat 31 and the limit seat 512, so that it can maintain a certain preload force under normal conditions to ensure that the cutting seat 31 is in a triggering state, and can also provide buffering and reset assistance in time during cutting.

[0067] An execution block 312 is installed at the end of the cutting seat 31 away from the limit seat 512, and an inclined groove is processed at the downward end of the execution block 312. A trigger block 121 is specifically arranged on the lower support ring 12, and the trigger block 121 can accurately abut on the inclined groove. When the lifting plate 51 descends from the second height to the third height, the trigger block 121 moves with the component and contacts the inclined groove. By means of the unique inclined geometric structure of the inclined groove, the vertical displacement is converted into a driving force in the horizontal direction, so that the cutting seat 31 overcomes the elastic force of the elastic cutting element 32 and moves toward each other quickly, driving the blade 311 to instantly cut the tensioned wire between them.

[0068] When two blades 311 are installed to prevent one of the blades 311 from becoming blunt, the other blade 311 can also accurately cut the wire.

[0069] like Figure 4 As shown, an upper positioning ring 61 is provided at the top of the magnetic ring 522, an upper connecting rod connected to the magnetic ring 522 is provided on the outer wall of the upper positioning ring 61, a lower positioning ring 62 coaxial with the upper positioning ring 61 is provided at the bottom end of the lifting plate 51, and a lower connecting rod connected to the lifting plate 51 is provided on the outer wall of the lower positioning ring 62, and the wire passes through the upper positioning ring 61 and the lower positioning ring 62 in sequence from top to bottom.

[0070] The conveying path of the wire follows the order from top to bottom, and accurately passes through the upper positioning ring 61 and the lower positioning ring 62 in sequence. The upper positioning ring 61 and the lower positioning ring 62 are coaxially arranged, and the concentric ring structure of the two creates a straight and smooth passage for the wire, effectively resisting external interference and preventing abnormal conditions such as lateral deviation, twisting and winding of the wire.

[0071] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications 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 present invention patent shall be subject to the attached claims.

Claims

1. A tangent mechanism, characterized in that: It comprises a frame (1), an upper clamp (2), a textile thread cutter (3) and a lower clamp (4); Rack(1); The upper clamp (2), the textile thread cutter (3) and the lower clamp (4) are arranged in sequence from top to bottom in the frame (1); the wire passes through the upper clamping opening of the upper clamp (2), the cutting opening of the textile thread cutter (3) and the lower clamping opening of the lower clamp (4) in sequence from top to bottom; the position of the upper clamp (2) is fixed; the textile thread cutter (3) is connected to the lower clamp (4) and can be synchronously moved in the longitudinal direction; The lower clamp (4) has a first height, a second height and a third height from top to bottom in the displacement direction; The frame (1) is provided with a height adjustment mechanism (5) for driving the lower clamp (4) to move from a first height to a second height and a third height; after the lower clamp (4) is lowered from the first height to the second height, the upper clamp (2) and the lower clamp (4) synchronously clamp the wire; when the lower clamp (4) is lowered from the second height to the third height, the upper clamp (2) and the lower clamp (4) clamp the wire while the textile wire cutter (3) cuts the wire at the third height.

2. A tangent mechanism according to claim 1, characterized in that: The frame (1) comprises an upper support ring (11), a lower support ring (12) and a column (13); Upper support ring (11); The lower support ring (12) is arranged at the bottom of the upper support ring (11) and is coaxial with the upper support ring (11); The column (13) is arranged between the upper supporting ring (11) and the lower supporting ring (12) along the circumferential direction of the upper supporting ring (11) and the lower supporting ring (12), the top end of the column (13) is fixedly connected to the bottom end of the upper supporting ring (11), and the bottom end of the column (13) is fixedly connected to the top end of the lower supporting ring (12); The height adjustment mechanism (5) comprises a lifting plate (51) and a lifting drive; The lifting plate (51) is arranged between the upper supporting ring (11) and the lower supporting ring (12), the textile thread cutter (3) is arranged at the top end of the lifting plate (51), and the lower clamp (4) is arranged at the bottom end of the lifting plate (51); The lifting drive is arranged on the top of the upper support ring (11) and is drivingly connected to the lifting plate (51).

3. A tangent mechanism according to claim 2, characterized in that: The lifting driver comprises an electromagnetic coil (521), a magnetic ring (522), a driving rod (523) and an elastic reset element (524); The electromagnetic coil (521) is coaxially arranged on the top end of the upper support ring (11); The magnetic ring (522) is coaxially arranged on the top of the electromagnetic coil (521); The driving rod (523) slides longitudinally and penetrates the upper support ring (11), the top end of the driving rod (523) is connected to the magnetic ring (522), and the bottom end of the driving rod (523) is connected to the lifting plate (51); The elastic reset element (524) is sleeved on the driving rod (523) and is located between the magnetic ring (522) and the upper support ring (11).

4. A tangent mechanism according to claim 3, characterized in that: The frame (1) also includes a fixing plate (14) arranged between the upper supporting ring (11) and the lower supporting ring (12); The upper clamp (2) comprises two upper clamping blocks (21) which are slidably arranged at the bottom end of the fixed plate (14) towards each other, and an upper through-opening is formed on the fixed plate (14), and the upper through-opening is located at the top ends of the two upper clamping blocks (21); An upper support rod (22) extending along the sliding direction of the two upper clamping blocks (21) is provided on the back side thereof; An upper driving block (23) is provided on the driving rod (523), an upper inclined surface is provided on one end of the upper driving block (23) facing the axis of the upper supporting ring (11), an upper avoidance opening is provided on the fixing plate (14) and is located at the bottom of the upper driving block (23), when the upper driving block (23) moves downward, the upper abutting rod (22) abuts against the upper inclined surface and moves in the radial direction of the upper supporting ring (11); An upper positioning seat (141) is provided at the bottom end of the fixing plate (14), an upper push rod (22) slides through the upper positioning seat (141) and is provided with an upper push ring (221), and an upper elastic clamping element (24) is provided between the upper positioning seat (141) and the upper push ring (221).

5. A tangent mechanism according to claim 4, characterized in that: An upper mounting opening is provided in the upper clamping block (21), an upper push rod (22) slides through the upper mounting opening, an upper limit ring (222) located in the upper mounting opening is also provided on the upper push rod (22), and an upper elastic buffer element (25) is provided between the upper limit ring (222) and an end of the upper mounting opening facing away from the wire.

6. A tangent mechanism according to claim 4, characterized in that: The lower clamp (4) comprises two lower clamping blocks (41) which are slidably arranged at the bottom end of the lifting plate (51) towards each other, and the lifting plate (51) is provided with a lower through opening located at the top ends of the two lower clamping blocks (41); The back sides of the two lower clamping blocks (41) are provided with lower support rods (42) extending along the sliding direction thereof; A stand (15) is also provided between the fixing plate (14) and the lower support ring (12) and is located on the back side of the two lower clamping blocks (41). The stand (15) is provided with an upper vertical surface, an inclined surface and a lower vertical surface in order from top to bottom on the side facing the wire. The end surface of the lower support rod (42) is in contact with the stand (15). A lower sliding seat (511) is also provided at the bottom end of the lifting plate (51), a lower support rod (42) slides through the lower sliding seat (511) and is provided with a lower support ring (421), and a lower elastic clamping element (43) is provided between the lower sliding seat (511) and the lower support ring (421).

7. A thread cutting mechanism according to claim 6, characterized in that: A lower mounting opening is provided in the lower clamping block (41), a lower push rod (42) slides through the lower mounting opening, a lower stop ring (422) located in the lower mounting opening is provided on the lower push rod (42), and a lower elastic buffer element (44) is provided between the lower stop ring (422) and an end of the lower mounting opening facing away from the wire.

8. A thread cutting mechanism according to any one of claims 2 to 7, characterized in that: The textile thread cutter (3) comprises a cutting seat (31) and an elastic cutting element (32); There are two cutting seats (31), and blades (311) are arranged obliquely on the two cutting seats (31); A limiting seat (512) located on the displacement path of the cutting seat (31) is provided on the lifting plate (51), and the elastic cutting element (32) is provided between the cutting seat (31) and the limiting seat (512); An execution block (312) is provided at one end of the cutting seat (31) away from the limiting seat (512), and an inclined groove is provided at the downward end of the execution block (312); The lower support ring (12) is provided with a trigger block (121) capable of abutting against the inclined groove.

9. A thread cutting mechanism according to any one of claims 3 to 7, characterized in that: An upper positioning ring (61) is arranged at the top of the magnetic ring (522); an upper connecting rod connected to the magnetic ring (522) is arranged on the outer wall of the upper positioning ring (61); a lower positioning ring (62) coaxial with the upper positioning ring (61) is arranged at the bottom of the lifting plate (51); a lower connecting rod connected to the lifting plate (51) is arranged on the outer wall of the lower positioning ring (62); and the wire passes through the upper positioning ring (61) and the lower positioning ring (62) in sequence from top to bottom.

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