Yarn winding prevention type let-off mechanism and Karl-Myer warp knitting machine

Abstract

The utility model relates to the technical field of let-off of a Karl-Myer warp knitting machine, in particular to a yarn winding prevention type let-off mechanism and the Karl-Myer warp knitting machine. The yarn winding prevention type let-off mechanism comprises a supporting plate, and first moving plates which are symmetrical relative to the center position of the supporting plate are arranged on the two sides of the top of the supporting plate in a sliding mode; two second moving plates are arranged on the side, close to the first moving plates, of the top of the supporting plate, a first moving mechanism used for moving the two first moving plates is arranged in the supporting plate, and a second moving mechanism used for moving the two second moving plates is further arranged in the supporting plate; according to the warp beam, the detachable warp feeding wheel bodies are arranged outside the warp beam, the warp grooves are formed in the warp feeding wheel bodies, after the warp grooves are abraded, the single warp feeding wheel body can be replaced, the whole warp beam does not need to be replaced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of warp let-off of a Karl Mayer warp knitting machine, in particular to a yarn winding prevention type warp let-off mechanism and a Karl Mayer warp knitting machine. Background Art

[0002] A warp knitting machine is a mechanical device that uses two needle beds for weaving. The front and rear needle beds cooperate to produce complex fabric structures. This machine is usually equipped with an advanced control system and jacquard device, which can accurately control the direction of the yarn and the weaving process, thereby producing fabrics with specific patterns and structures. Karl Mayer warp knitting machines are a series of high-performance warp knitting machines produced by Karl Mayer. Karl Mayer warp knitting machines require a warp feed mechanism to move the yarn. The existing warp feed mechanism uses the rotation of the warp feed roller to move the warp threads wound on it. During the warp conveying process, the warp threads are easily entangled with each other, affecting the conveying of the warp threads.

[0003] Chinese patent authorization announcement number CN219991872U discloses a warp feeding mechanism of a double needle bed jacquard warp knitting machine, including a mounting bracket and a warp shaft, the warp shaft is rotatably connected to the mounting bracket, a warp feeding motor for driving the warp shaft is arranged on the mounting bracket, guide grooves are penetrated on both sides of the mounting bracket, guide blocks are slidably connected in the guide grooves, the mounting bracket is provided with two screw lifting devices, the guide blocks are threadedly sleeved on the screw part of the screw lifting device, a tension rod is rotatably connected between the opposite sides of the two guide blocks, the tension rod and the warp shaft are both provided with a plurality of annular wire grooves evenly distributed along a linear array, and each annular wire groove of the tension rod corresponds to each annular wire groove of the warp shaft. The patent uses the correspondence between each annular wire groove on the warp shaft and each annular wire groove on the tension rod to separate each warp yarn and avoid entanglement of each warp yarn.

[0004] In this prior art, a number of annular grooves are provided on the warp shaft to separate the warp threads, and the warp threads are moved as the warp shaft rotates. However, the annular grooves of the existing equipment are directly carved or cast on the warp shaft, forming a whole with the warp shaft. In actual use, the friction between the annular grooves and the warp threads will gradually cause the annular grooves to wear. Once the wear is severe, the annular grooves may jam the warp threads, affecting the normal operation of the equipment. At this time, the traditional solution is to replace the entire warp shaft, but this is costly and not economical. Utility Model Content

[0005] The purpose of the utility model is to provide a yarn winding prevention warp feeding mechanism and a Karl Mayer warp knitting machine, by arranging a detachable warp feeding wheel body on the outside of the warp shaft, and opening a warp groove on the warp feeding wheel body. When the warp groove is worn, a single warp feeding wheel body can be replaced without replacing the entire warp shaft, thereby saving costs.

[0006] To solve the problems of the prior art, the utility model provides a yarn entanglement prevention warp feeding mechanism, comprising a support plate, wherein first movable plates symmetrically arranged relative to the center position of the support plate are slidably arranged on both sides of the top of the support plate, and two second movable plates are arranged on the side of the top of the support plate close to the first movable plate, a first movable mechanism for moving the two first movable plates is arranged in the support plate, and a second movable mechanism for moving the two second movable plates is also arranged in the support plate, a warp feeding wheel group for conveying warp threads is arranged between the two first movable plates and between the two second movable plates, a rotating driving member for driving the warp feeding wheel group between the two second movable plates to rotate is arranged on the second movable plate, and a tensioning mechanism for driving the warp feeding wheel group between the two first movable plates to adjust the position is arranged on the first movable plate.

[0007] Preferably, the warp wheel group includes a warp shaft, on which a plurality of warp wheel bodies capable of sliding on the warp shaft are evenly arranged, and locking bolts for fixing the warp wheel bodies are also arranged on both sides of the outside of the warp wheel bodies, and one end of the locking bolt passes through the warp wheel body and contacts the outer surface of the warp shaft.

[0008] Preferably, the outer surface of the warp shaft is provided with at least two slide grooves arranged along its length direction, and a slider corresponding to the slide groove is opened on the inner side of the warp wheel body, and the slider is slidably arranged in the slide groove.

[0009] Preferably, a warp groove for limiting the warp is provided at the central position of the exterior of the warp wheel body, and the warp groove is provided in a ring shape on the warp wheel body.

[0010] Preferably, a plurality of warp grooves for limiting the warp threads are arranged at the central position of the exterior of the warp wheel body, and the warp grooves are arranged in a ring shape on the warp wheel body.

[0011] Preferably, the warp let-off wheel assembly comprises a sleeve sleeved on both ends of the warp shaft, the inner wall of the sleeve is provided with a limit block corresponding to the slide groove, and the sleeve is also provided with a fastening bolt, one end of the fastening bolt passes through the sleeve and contacts the outer surface of the warp shaft.

[0012] Preferably, the tensioning mechanism includes a support block installed on the outside of the first movable plate, the support block is movably connected to the first telescopic driving member, the output end of the first telescopic driving member is movably provided with a connecting rod, one end of the connecting rod is movably provided on the outside of the first movable plate, and a guide groove is also provided on the first movable plate, the guide groove is an arc groove, the other end of the connecting rod is movably connected to the sleeve, and the sleeve slides in the guide groove.

[0013] A Karl Mayer warp knitting machine comprises the yarn winding prevention warp letting-off mechanism described in the above scheme.

[0014] Compared with the prior art, the utility model has the beneficial effect that the yarn winding prevention warp feeding mechanism and the Karl Mayer warp knitting machine have reasonable structures and have the following advantages:

[0015] (1) The present application adopts a detachable let-off wheel body design and is directly installed on the warp axis. Once the let-off wheel body is severely worn out due to long-term use and the warp is stuck, it is only necessary to simply disassemble and replace the let-off wheel body without replacing the entire warp axis, which not only reduces the replacement cost but also simplifies the replacement process;

[0016] (2) The warp grooves designed on the warp let-off wheel body allow the warp to be stably transported in the grooves during the warp transmission process. The warp is transmitted along a preset trajectory, effectively preventing the warp from deviating and entangled with each other, thereby improving the stability and efficiency of warp transmission.

[0017] (3) The present application is also equipped with a tensioning mechanism, which drives the connecting rod to rotate by operating the first telescopic driving member, thereby driving the sleeve shaft to move smoothly in the guide groove, and flexibly adjusting the position of the warp feeding wheel group on the first movable plate, so as to accurately control the tension of the warp and prevent the normal transportation from being affected by the warp being too loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a yarn winding prevention warp let-off mechanism of the utility model;

[0019] Figure 2 It is a front view structural schematic diagram of a yarn winding prevention warp let-off mechanism of the utility model;

[0020] Figure 3 It is a schematic cross-sectional structure diagram of a yarn winding prevention warp let-off mechanism of the utility model;

[0021] Figure 4 It is a top view structural schematic diagram of a yarn winding prevention warp let-off mechanism of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a warp let-off wheel set of a yarn winding prevention warp let-off mechanism of the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of a tensioning mechanism and a warp beam of a yarn winding prevention warp let-off mechanism of the utility model;

[0024] Figure 7 The utility model is a schematic diagram of the three-dimensional structure of a warp let-off wheel body of a yarn winding prevention warp let-off mechanism.

[0025] The numbers in the figure are: 1, support plate; 11, first movable plate; 111, guide groove; 12, second movable plate; 13, first movable mechanism; 14, second movable mechanism; 15, tensioning mechanism; 151, support block; 152, first telescopic driving member; 153, connecting rod; 16, warp let-off wheel group; 161, sleeve; 1611, fastening bolt; 162, warp let-off wheel body; 1621, locking bolt; 1622, slider; 1623, warp groove; 163, warp axis; 1631, slide groove; 17, rotating driving member. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1-Figure 7 As shown, the utility model provides: a yarn winding prevention warp feeding mechanism, comprising a support plate 1, first movable plates 11 symmetrically arranged relative to the center position of the support plate 1 are slidably arranged on both sides of the top of the support plate 1, two second movable plates 12 are arranged on one side of the top of the support plate 1 close to the first movable plate 11, a first movable mechanism 13 for moving the two first movable plates 11 is arranged in the support plate 1, the first movable mechanism 13 can be a lead screw, a stepping motor or a servo motor or other mechanism capable of moving the first movable plate 11, which is a prior art, and the support plate 1 is also provided with two second movable plates 12 The second moving mechanism 14 can be a screw, a stepping motor or a servo motor or other mechanism that can move the second moving plate 12. It is a prior art. A let-off wheel group 16 for conveying the warp is provided between the two first moving plates 11 and between the two second moving plates 12. The second moving plate 12 is provided with a rotating drive member 17 for driving the let-off wheel group 16 between the two second moving plates 12 to rotate. The rotating drive member 17 is responsible for providing rotational power for the let-off wheel group 16. The rotating drive member 17 can be a motor or other structure that can perform a rotational function. The first moving plate 11 is provided with a tensioning mechanism 15 for driving the let-off wheel group 16 between the two first moving plates 11 to adjust the position. The tensioning mechanism 15 can adjust the tension of the warp.

[0028] The let-off wheel set 16 includes a warp shaft 163, on which a plurality of let-off wheel bodies 162 that can slide on the warp shaft 163 are evenly arranged. The warp shaft 163 allows the let-off wheel bodies 162 to slide thereon to adapt to different warp arrangements, and the let-off wheel bodies 162 can be installed in different numbers according to actual needs. Locking bolts 1621 for fixing the let-off wheel bodies 162 are also arranged on both sides of the outside of the let-off wheel bodies 162. One end of the locking bolt 1621 passes through the let-off wheel body 162 and contacts the outer surface of the warp shaft 163. The locking bolt 1621 passes through the let-off wheel body 162 through a threaded connection and is in close contact with the outer surface of the warp shaft 163. When the locking bolts 1621 are tightened, they will generate sufficient pressure to firmly fix the let-off wheel body 162 on the warp shaft 163 to prevent it from moving or loosening during operation.

[0029] The position of the let-off wheel body 162 on the warp beam 163 is adjustable, which allows the operator to flexibly adjust the layout of the let-off wheel set 16 according to the number of warp threads. By loosening the locking bolt 1621, the let-off wheel body 162 can be slid to a desired position on the warp beam 163, and then the locking bolt 1621 is tightened again to fix the position.

[0030] The outer surface of the warp shaft 163 is provided with at least two slide grooves 1631 arranged along its length direction, and a slider 1622 corresponding to the slide groove 1631 is arranged on the inner side of the warp wheel body 162. The slider 1622 is slidably set in the slide groove 1631. The slide groove 1631 and the slider 1622 ensure that the warp wheel body 162 can slide smoothly along the slide groove 1631 of the warp shaft 163 while maintaining sufficient stability and precision.

[0031] Embodiment 1: A warp groove 1623 for limiting the warp is disposed at the center position of the exterior of the warp wheel body 162 , and the warp groove 1623 is disposed in a ring shape on the warp wheel body 162 .

[0032] Embodiment 2: A plurality of warp grooves 1623 for limiting the position of the warp threads are arranged at the central position of the exterior of the warp wheel body 162 , and the warp grooves 1623 are arranged in a ring shape on the warp wheel body 162 .

[0033] The warp let-off wheel set 16 includes a sleeve 161 sleeved on both ends of the warp shaft 163, the inner wall of the sleeve 161 is provided with a stopper corresponding to the slide slot 1631, and a fastening bolt 1611 is also provided on the sleeve 161, one end of the fastening bolt 1611 passes through the sleeve 161 and contacts the outer surface of the warp shaft 163. The fastening bolt 1611 passes through the side wall of the sleeve 161 through a threaded connection and is in close contact with the outer surface of the warp shaft 163. When the fastening bolts 1611 are tightened, they will generate sufficient pressure to firmly fix the sleeve 161 on the warp shaft 163 to prevent it from loosening or falling off during operation.

[0034] The tensioning mechanism 15 includes a support block 151 installed on the outside of the first movable plate 11, and a first telescopic driving member 152 is movably connected to the support block 151. A connecting rod 153 is movably provided at the output end of the first telescopic driving member 152. One end of the connecting rod 153 is movably provided on the outside of the first movable plate 11. A guide groove 111 is also provided on the first movable plate 11. The guide groove 111 is an arc groove. The other end of the connecting rod 153 is movably connected to a sleeve 161, and the sleeve 161 slides in the guide groove 111.

[0035] When in use, when the first telescopic driving member 152 is extended or retracted, the first telescopic driving member 152 will push or pull one end of the connecting rod 153, so that the connecting rod 153 swings around its connection point. Since the other end of the connecting rod 153 is movably connected to the shaft on the sleeve 161, and the sleeve 161 slides in the guide groove 111, the position of the warp let-off wheel set 16 on the first movable plate 11 is adjusted to change, thereby adjusting the tension of the warp.

[0036] A Karl Mayer warp knitting machine comprises a yarn winding prevention warp letting-off mechanism in the above-mentioned solution.

[0037] Working principle: When in use, first install the anti-yarn winding warp feeding mechanism on the warp knitting machine, and then wind the warp threads one by one in the warp groove 1623 of the warp feeding wheel body 162. Start the rotary drive member 17, and the rotary drive member 17 will drive one of the warp feeding wheel groups 16 to rotate, thereby driving the warp threads to feed the warp threads. In the process of warp feeding, the design of the warp groove 1623 plays a key role. The warp threads are stuck in the groove, which effectively prevents deviation and mutual entanglement, ensuring the accuracy and smoothness of warp feeding. In order to adjust the tension of the warp threads, the anti-yarn winding warp feeding mechanism is equipped with a tensioning mechanism 15. By starting the first telescopic drive member 152, the first telescopic drive member 152 will drive the connecting rod 153 to rotate. The rotation of the connecting rod 153 further drives the shaft on the sleeve 161 to slide in the guide groove 111, thereby realizing the precise adjustment of the position of the warp feeding wheel group 16 on the first movable plate 11. This adjustment mechanism ensures that the warp always maintains the proper tension, avoiding the problem of affecting the conveying efficiency due to being too loose. In addition, considering the possible wear and tear of the warp let-off wheel body 162 after long-term use, the anti-yarn winding warp let-off mechanism is also designed with a convenient replacement mechanism. When the warp groove 1623 is severely worn and the warp is stuck, the user only needs to turn the fastening bolt 1611 to loosen the connection between the sleeve 161 and the warp shaft 163. Subsequently, the sleeve 161 is separated from the warp shaft 163 through the action of the first moving mechanism 13 and the second moving mechanism 14. At this point, the user can easily remove the warp shaft 163 and the warp let-off wheel body 162 for replacement. This design not only reduces the replacement cost, but also greatly improves the convenience of replacement.

[0038] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A yarn winding prevention warp let-off mechanism, characterized in that: The invention comprises a support plate (1), wherein first movable plates (11) are slidably arranged on both sides of the top of the support plate (1) and are symmetrical with respect to the center position of the support plate (1), two second movable plates (12) are arranged on one side of the top of the support plate (1) close to the first movable plate (11), a first movable mechanism (13) for moving the two first movable plates (11) is arranged in the support plate (1), and a second movable mechanism (14) for moving the two second movable plates (12) is also arranged in the support plate (1), a let-off wheel group (16) for conveying warp threads is arranged between the two first movable plates (11) and between the two second movable plates (12), a rotating driving member (17) for driving the let-off wheel group (16) between the two second movable plates (12) to rotate is arranged on the second movable plate (12), and a tensioning mechanism (15) for driving the let-off wheel group (16) between the two first movable plates (11) to adjust the position is arranged on the first movable plate (11).

2. The yarn winding prevention warp let-off mechanism according to claim 1, characterized in that: The let-off wheel assembly (16) comprises a warp shaft (163), on which a plurality of let-off wheel bodies (162) capable of sliding on the warp shaft (163) are evenly arranged, and locking bolts (1621) for fixing the let-off wheel body (162) are also arranged on both sides of the outside of the let-off wheel body (162), one end of the locking bolt (1621) passes through the let-off wheel body (162) and contacts the outer surface of the warp shaft (163).

3. The yarn winding prevention warp let-off mechanism according to claim 2, characterized in that: The outer surface of the warp shaft (163) is provided with at least two slide grooves (1631) arranged along its length direction, and a slider (1622) corresponding to the slide groove (1631) is arranged on the inner side of the warp wheel body (162), and the slider (1622) is slidably arranged in the slide groove (1631).

4. The yarn winding prevention warp let-off mechanism according to claim 3, characterized in that: A warp groove (1623) for limiting the position of the warp is arranged at the central position of the outside of the warp wheel body (162); the warp groove (1623) is arranged in a ring shape on the warp wheel body (162).

5. The yarn winding prevention warp let-off mechanism according to claim 3, characterized in that: A plurality of warp grooves (1623) for limiting the position of warp threads are arranged at the central position of the outside of the warp wheel body (162); the warp grooves (1623) are arranged in a ring shape on the warp wheel body (162).

6. The yarn winding prevention warp let-off mechanism according to claim 4 or 5, characterized in that: The warp let-off wheel assembly (16) comprises a sleeve (161) sleeved on both ends of a warp shaft (163); a limit block corresponding to the slide groove (1631) is arranged on the inner wall of the sleeve (161); a fastening bolt (1611) is also arranged on the sleeve (161); one end of the fastening bolt (1611) passes through the sleeve (161) and contacts the outer surface of the warp shaft (163).

7. The yarn winding prevention warp let-off mechanism according to claim 1, characterized in that: The tensioning mechanism (15) comprises a support block (151) mounted on the outside of the first movable plate (11); a first telescopic driving member (152) is movably connected to the support block (151); a connecting rod (153) is movably arranged at the output end of the first telescopic driving member (152); one end of the connecting rod (153) is movably arranged outside the first movable plate (11); a guide groove (111) is further provided on the first movable plate (11); the guide groove (111) is an arc-shaped groove; the other end of the connecting rod (153) is movably connected to a sleeve (161); and the sleeve (161) slides in the guide groove (111).

8. A KARL MAYER warp knitting machine, characterized in that: It comprises the anti-yarn winding type warp feeding mechanism as described in any one of claims 1-5.

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