Novel stroke correction device

Abstract

The utility model belongs to the field of textile machinery, particularly belongs to the field of processing equipment after spinning and false twist texturing, and particularly relates to a novel stroke correcting device which is arranged in a tail frame of a false twist texturing machine and comprises a transmission wall plate, a group of stroke correcting parts are symmetrically arranged on the transmission wall plate, and the stroke correcting parts are arranged on the transmission wall plate. Each stroke correction part comprises three stroke correction mechanisms of the same structure, the three stroke correction mechanisms are connected through a transmission mechanism, and each stroke correction mechanism is connected with a groove drum box located outside the vehicle tail frame through a connecting mechanism; in the stroke correction mechanism, a ball screw mechanism is used for replacing a transmission form of thread engagement in the prior art, sliding screw transmission is changed into rolling screw transmission, friction between thread engagement is reduced, meanwhile, a lubricating oil way is matched, the abrasion rate of the device is reduced, the transmission precision and efficiency are improved, and the service life of the device is prolonged. Therefore, the transmission efficiency is increased to 0.9-0.98, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of textile machinery, in particular to the field of processing equipment after spinning and false twisting deformation, and in particular relates to a novel stroke correction device. Background Art

[0002] In the textile field, the yarn that has been processed by several pre-processing procedures needs to be processed by a false twist texturing machine, and then it will be transported to the groove drum box for winding into a bobbin. During this process, it is necessary to constantly adjust the position of the yarn wound on the bobbin to prevent the yarn from being stacked too thickly and entangled. Therefore, the stroke correction device came into being. Driven by the reduction motor, the computer program and frequency conversion control are used to convert the rotational motion of the motor into a horizontal linear reciprocating motion, so that the yarn is evenly wound onto the bobbin according to a certain winding cross angle, so that the lead wire is wound into shape, and at the same time, the breakage rate is reduced during high-speed unwinding.

[0003] The traditional stroke correction device is a sliding spiral transmission structure, that is, the two end threads that mesh with each other are used to realize the lateral reciprocating motion of the stroke correction rod. The transmission efficiency of this structure is low, only between 0.3-0.7, and there is a lateral gap between the meshing threads, there is an empty stroke when reversing, the positioning accuracy is poor, and the wear is fast, which increases the production cost and reduces the production efficiency; in addition, the traditional stroke correction device is arranged on the outside of the false twist texturing locomotive tail frame, and each stroke correction device is equipped with a motor. When multiple stations perform stroke correction, the complex mechanical structure located outside the tail frame is not only easy to cause damage, but also causes a waste of cost. Utility Model Content

[0004] In view of this, the utility model provides a novel stroke correction device. On the basis of the original false twist texturing machine body, the stroke correction device itself and the rear frame related to its installation structure are improved, aiming to reduce cost waste and improve production efficiency.

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

[0006] A novel stroke correction device is applied to a false twist texturing machine. The stroke correction device is arranged in the rear part of the false twist texturing machine, and comprises:

[0007] A transmission wall plate, wherein a group of stroke correction parts are symmetrically arranged on the transmission wall plate, wherein each stroke correction part includes three stroke correction mechanisms with completely identical structures, the three stroke correction mechanisms are connected by a transmission mechanism, and each stroke correction mechanism is connected to a groove drum box located outside the rear frame through a connecting mechanism, and the groove drum box is provided with a connecting rod;

[0008] The stroke correction mechanism comprises a bearing seat, wherein the bearing seat comprises a first mounting portion, a second mounting portion and a third mounting portion which are integrally formed, wherein:

[0009] The stroke correction mechanism is installed on the transmission wall plate as a whole through the first mounting part; the second mounting part is located on one side of the first mounting part, the interior of the second mounting part is a hollow cylindrical mounting cavity, a threaded sleeve is provided in the mounting cavity, a bearing and a bearing retaining ring are provided between the second mounting part and the threaded sleeve, one end of the threaded sleeve is provided with a limiting protrusion, and the other end of the threaded sleeve is provided with a plurality of first threaded holes along its circumference. On this basis, a nut is threadedly connected on the outer wall of the threaded sleeve, and after the nut is installed in conjunction with the first washer, the bearing and the threaded sleeve are axially fixed in the mounting cavity by cooperating with the limiting protrusion and the bearing retaining ring; the third mounting part is located on the other side of the first mounting part, and the third mounting part includes a group of symmetrically arranged limiting blocks, and there is a gap between the group of limiting blocks;

[0010] In addition, the stroke correction mechanism also includes a ball screw mechanism arranged inside the threaded sleeve, the ball screw mechanism includes a screw, the screw is integrally composed of a connecting portion, a working portion and an extending portion, wherein the connecting portion and the extending portion are respectively located on both sides of the working portion, and the connecting portion extends to the outside of the rear frame of the vehicle; the cross-section of the connecting portion is rectangular, and the thickness is smaller than the diameter of the working portion, the end of the connecting portion is connected to the groove barrel box through the connecting mechanism, the connecting portion passes through a gap between a group of the limit blocks, and in the gap, limit mechanisms are also provided on both sides of the connecting portion; a spiral rolling groove is opened on the outer surface of the working portion, a plurality of balls are arranged in the rolling groove, a nut is connected to the outer surface of the screw through ball rolling, and the nut includes an integrally formed fourth mounting portion and a fifth mounting portion, wherein the fourth mounting portion is provided with a plurality of second threaded holes, and the positions and sizes of the plurality of second threaded holes correspond to the plurality of first threaded holes;

[0011] On this basis, the stroke correction mechanism also includes a transmission sprocket arranged on one side of the fourth mounting part on the nut, and the transmission sprocket is provided with a plurality of third threaded holes corresponding to the position and size of the second threaded hole. The transmission sprocket is fixed by the cooperation of the first fixing bolt and the first threaded hole, the second threaded hole and the third threaded hole, and the reciprocating motion of the lead screw is realized when the transmission sprocket rotates, thereby realizing the stroke correction of the stroke correction mechanism, and the maximum correction stroke is 12mm.

[0012] Preferably, in the rear frame, the transmission mechanism includes a motor support frame arranged on the transmission wall panel, the motor support frame is provided with a reduction motor, and the output end of the reduction motor is provided with a driving sprocket. In addition, a plurality of tensioning mechanisms are also provided on the transmission wall panel, each tensioning mechanism includes a tensioning seat, and the tensioning seat is provided with a tensioning sprocket. The driving sprocket, the three transmission sprockets and the plurality of tensioning sprockets are connected together by a transmission chain.

[0013] More preferably, in the stroke correction mechanism, an operating hole is further provided on the second mounting portion of the bearing seat, and the bearing and the bearing retaining ring in the mounting cavity constitute a bearing assembly. The bearing assembly is symmetrically provided in two groups, and in each group of bearing assemblies, a second gasket is further provided between the bearing and the bearing retaining ring.

[0014] Preferably, in the stroke correction mechanism, the bearing in the mounting cavity is a tapered roller bearing.

[0015] Furthermore, in the stroke correction mechanism, a protective sleeve is threadedly connected to one side of the transmission sprocket, the diameter of the protective sleeve is larger than the diameter of the extended portion of the lead screw, and the protective sleeve covers the extended portion of the lead screw throughout the entire process of the reciprocating motion of the lead screw.

[0016] Furthermore, in the ball screw mechanism, the connecting mechanism includes an active end and a driven end that are cooperatively connected to each other, the active end is a stroke correction mechanism end, including a first anti-slip groove provided at the end of the connecting part of the screw, the first anti-slip groove is provided with a plurality of anti-slip teeth, and the first anti-slip groove is also provided with a first connecting hole; the driven end is a groove drum box end, including a second anti-slip groove provided at the end of the connecting rod, the second anti-slip groove is also provided with a plurality of anti-slip teeth, and the second anti-slip groove is also provided with a second connecting hole, the stroke correction mechanism is connected to the groove drum box through the staggered cooperation between the anti-slip teeth on the first anti-slip groove and the second anti-slip groove, and at the same time through the cooperation of the second fixing bolt with the first connecting hole and the second connecting hole.

[0017] Preferably, in the ball screw mechanism, the limiting mechanism located on both sides of the screw connection part includes a group of countersunk holes provided on a limit block, and a group of mounting holes correspondingly provided on the other limit block. In addition, the limiting mechanism also includes a liner block provided in the gap between a group of limit blocks, and two liner blocks are provided and are respectively located on both sides of the screw connection part. The two liner blocks are both slidably abutted against a group of limit blocks. On this basis, each liner block is provided with a through hole, and the through hole on each liner block is cooperated with the corresponding countersunk hole and mounting hole to be connected to an adjustment shaft.

[0018] More preferably, the adjusting shaft is a stepped shaft, which is integrally composed of a rotating part, an adjusting part and a fixed part, wherein the rotating part is fitted in the countersunk hole; the adjusting part is an eccentric shaft, which is fitted in the through hole of the liner, and the center line of the eccentric shaft deviates by 0.5mm from the center line of the adjusting shaft as a whole; the fixed part is fitted in the mounting hole; by rotating the two adjusting shafts, the eccentric rotation action of the adjusting part is utilized to make the two liner blocks slide toward each other along the gaps between a group of limit blocks, respectively, to squeeze the connecting part of the limit screw, and the distance between each liner block and the connecting part of the screw is 0.02mm.

[0019] Preferably, an oil passage is provided inside the fourth mounting portion of the nut, the oil passage is connected to the rolling groove on the lead screw, and an oil filling hole is provided on the transmission sprocket, the oil filling hole is connected to the oil passage, and is used to inject lubricating oil into the rolling groove.

[0020] The beneficial effects of the utility model are:

[0021] Generally speaking, the present invention uses a ball screw mechanism in the stroke correction mechanism to replace the transmission form of thread engagement in the prior art, changing the sliding screw transmission into a rolling screw transmission, reducing the friction between the thread engagement, and at the same time being equipped with a lubricating oil circuit, reducing the wear rate of the device, improving the accuracy and efficiency of the transmission, and increasing the transmission efficiency to 0.9-0.98, thereby improving production efficiency; in addition, the present invention also combines the three stroke correction mechanisms into a group of stroke correction parts on the basis of the original false twist deformation locomotive tail frame, and symmetrically arranges them on the transmission wall panel inside the tail frame, and then uses a transmission mechanism to transmit power to each stroke correction mechanism, thereby reducing the demand for the number of motors and reducing production costs; and the present invention installs the above-mentioned structures inside the false twist deformation locomotive tail frame to avoid the mechanical structure from being easily damaged due to being exposed to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall installation structure of the stroke correction device of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the connection between the stroke correction mechanism and the groove drum box in the utility model;

[0025] Figure 3 It is a schematic diagram of the forward cross-sectional structure of the stroke correction mechanism in the utility model;

[0026] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the stroke correction mechanism in the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the stroke correction mechanism in the utility model;

[0028] Figure 6 It is a schematic diagram of the specific structure of the adjusting shaft in the utility model. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The sliding spiral transmission structure used in the traditional stroke correction device is generally composed of a steel screw and a copper sleeve connected by a threaded connection. The axial reciprocating motion of the screw is achieved by the rotation of the sleeve driven by a motor. The screw is connected to the stroke correction input end of the grooved barrel box, and finally the yarn is evenly wound onto the bobbin according to a certain winding cross angle. The transmission efficiency of the sliding spiral transmission structure is relatively low, only between 0.3-0.7, and there is a lateral gap between the meshing threads, there is an empty stroke in the reverse direction, the positioning accuracy is poor, and the wear is fast, which increases the production cost while reducing the production efficiency.

[0032] In view of this, the present application focuses on improving the mechanical structure of the stroke correction device. Taking into account the prior art that the stroke correction device is installed as a whole on the outside of the false twist texturing machine's tail frame, there is a defect that the mechanical structure is easily damaged. A new type of stroke correction device is proposed. On the basis of the original false twist texturing machine body, the stroke correction device itself and the specific structure of installing it as a whole on the tail frame are improved, aiming to reduce cost waste and improve production efficiency, and provide favorable technical improvements for the development of the industry.

[0033] The solution provided by the utility model will be described in detail below with reference to the accompanying drawings.

[0034] In this technical solution, if Figure 1-2 As shown, a novel stroke correction device is applied to a false twist texturing machine, and the stroke correction device is arranged in a rear frame 1 of the false twist texturing machine.

[0035] Among them, the stroke correction device includes a transmission wall plate 101, and a group of stroke correction parts are symmetrically arranged on the transmission wall plate 101. Each stroke correction part includes three stroke correction mechanisms 2 with exactly the same structure. The three stroke correction mechanisms 2 are connected by a transmission mechanism 6, and each stroke correction mechanism 2 is connected to a groove box 3 located outside the rear frame 1 through a connecting mechanism. The groove box 3 is provided with a connecting rod 301.

[0036] It should be understood that the rear frame 1 is used to carry the rear parts of the false twist texturing machine. The present application arranges the stroke correction device in the rear frame 1 of the false twist texturing machine. On the one hand, it effectively utilizes the space inside the rear frame 1, and on the other hand, it is to avoid damage to the exposed mechanical structure and increase in production costs; in addition, the grooved drum box 3 is used as a prior art to wind the yarn processed by the false twist texturing machine. In order to make the technical solution more complete and clear, the present application introduces the role of the grooved drum box 3 for auxiliary explanation, and does not explain its specific structure in detail.

[0037] Based on the above structural foundation, in this technical solution, if Figure 3-5 As shown, the stroke correction mechanism 2 includes a bearing seat, and the bearing seat includes a first mounting portion 201, a second mounting portion 202 and a third mounting portion that are integrally formed.

[0038] The stroke correction mechanism 2 is installed as a whole on the transmission wall plate 101 through the first installation part 201 .

[0039] The second mounting portion 202 is located on one side of the first mounting portion 201. An operating hole 206 is provided on the second mounting portion 202. The interior of the second mounting portion 202 is a hollow cylindrical mounting cavity. A threaded sleeve 203 is provided in the mounting cavity. A bearing 204 and a bearing retaining ring 205 are provided between the second mounting portion 202 and the threaded sleeve 203. It should be noted here that a bearing 204 and a bearing retaining ring 205 constitute a bearing assembly. The bearing assembly is symmetrically provided in two groups. In each group of bearing assemblies, a second washer 207 is also provided between the bearing 204 and the bearing retaining ring 205. In addition, the bearing 204 adopts a tapered roller bearing.

[0040] In this regard, a limiting protrusion 208 is provided at one end of the threaded sleeve 203, and a plurality of first threaded holes 209 are provided along the circumference of the other end of the threaded sleeve 203. A nut 210 is threadedly connected to the outer wall of the threaded sleeve 203. After the nut 210 is installed in conjunction with the first washer 211, the bearing 204 and the threaded sleeve 203 are axially fixed in the installation cavity by cooperating with the limiting protrusion 208 and the bearing retaining ring 205.

[0041] In this embodiment, when the bearing seat is fixedly installed on the transmission wall plate 101, the matching arrangement of the bearing assembly and the nut 210 enables the threaded sleeve 203 to have a structural foundation for flexible rotation with its center line as the axis.

[0042] The third mounting portion is located at the other side of the first mounting portion 201 . The third mounting portion includes a group of symmetrically arranged limit blocks 212 , and there is a gap between the group of limit blocks 212 .

[0043] In this technical solution, based on the above structure, it is more important that Figure 3 As shown, the stroke correction mechanism 2 also includes a ball screw mechanism 4 disposed inside the threaded sleeve 203 . The ball screw mechanism 4 includes a screw, which is integrally composed of a connecting portion 401 , a working portion 402 and an extending portion 403 .

[0044] The connecting portion 401 and the extending portion 403 are respectively located at two sides of the working portion 402 , and the connecting portion 401 extends out of the rear frame 1 .

[0045] like Figure 2-5As shown, the cross-section of the connecting portion 401 is rectangular, and the thickness is smaller than the diameter of the working portion 402. The end of the connecting portion 401 is connected to the groove drum box 3 through a connecting mechanism. In particular, the connecting mechanism includes an active end and a driven end that are matched and connected to each other. The active end is the stroke correction mechanism end, including a first anti-slip groove 404 provided at the end of the connecting portion 401 of the screw, and a plurality of anti-slip teeth are provided on the first anti-slip groove 404, and a first connecting hole 405 is also provided on the first anti-slip groove 404; the driven end is the groove drum box end, including a second anti-slip groove provided at the end of the connecting rod 301, and a plurality of anti-slip teeth are also provided on the second anti-slip groove, and a second connecting hole is also provided on the second anti-slip groove. The stroke correction mechanism 2 is connected to the groove drum box 3 through the staggered cooperation between the anti-slip teeth on the first anti-slip groove 404 and the second anti-slip groove, and at the same time through the cooperation of the second fixing bolt with the first connecting hole 405 and the second connecting hole.

[0046] In this embodiment, the connection mechanism is arranged so that the stroke input end of the groove drum box 3 is completely identical to the operating action of the lead screw, and in this application, the stroke input end of the groove drum box 3 is the connecting rod 301 .

[0047] In addition, if Figure 3-5 As shown, the connecting portion 401 passes through the gap between a group of limit blocks 212, and in the gap, limit mechanisms 5 are also provided on both sides of the connecting portion 401, the limit mechanisms 5 include a group of countersunk holes 501 provided on a limit block 212, and a group of mounting holes 502 correspondingly provided on another limit block 212. In addition, the limit mechanism 5 also includes a liner 503 provided in the gap between a group of limit blocks 212, two liner blocks 503 are provided and are respectively located on both sides of the connecting portion 401 of the lead screw, and the two liner blocks 503 are both slidably abutted against a group of limit blocks 212. On this basis, each liner block 503 is provided with a through hole 504, and the through hole 504 on each liner block 503 cooperates with the corresponding countersunk hole 501 and the mounting hole 502 to be connected with an adjusting shaft 505.

[0048] like Figure 3-6 As shown, the adjusting shaft 505 is a stepped shaft, which is integrally composed of a rotating part 506, an adjusting part 507 and a fixed part 508, wherein the rotating part 506 is fitted in the countersunk hole 501; the adjusting part 507 is an eccentric shaft, which is fitted in the through hole 504 of the liner 503, and the center line of the eccentric shaft deviates by 0.5 mm from the center line of the adjusting shaft 505 as a whole; the fixed part 508 is fitted in the mounting hole 502.

[0049] Based on this embodiment, by rotating the two adjusting shafts 505 and utilizing the eccentric rotation action of the adjusting portion 507, the two lining blocks 503 are respectively slid toward each other along the gaps between a group of limit blocks 212, thereby squeezing the connecting portion 401 of the limit screw, and the distance between each lining block 503 and the connecting portion 401 of the screw is 0.02 mm, that is, the radial deviation of the connecting portion 401 is 0.02 mm. This arrangement, on the one hand, limits the axial reciprocating motion of the screw, and on the other hand, avoids the wear caused by hard extrusion, and also leaves a margin for the radial movement of the screw when limited.

[0050] like Figure 3 As shown, a spiral rolling groove 406 is provided on the outer surface of the working part 402, and a plurality of balls are provided in the rolling groove 406. A nut is connected to the outer surface of the lead screw through ball rolling. The nut includes an integrally formed fourth mounting part 407 and a fifth mounting part 408, wherein the fourth mounting part 407 is provided with a plurality of second threaded holes 409, and the positions and sizes of the plurality of second threaded holes 409 correspond to the plurality of first threaded holes 209.

[0051] On this basis, if Figure 3-4 As shown, the stroke correction mechanism 2 also includes a transmission sprocket 410 disposed on one side of the fourth mounting portion 407 on the nut, and the transmission sprocket 410 is provided with a plurality of third threaded holes 411 corresponding to the positions and sizes of the second threaded holes 409 .

[0052] At this point, in a single stroke correction mechanism 2, the transmission sprocket 410, the nut and the threaded sleeve 203 are fixed by the cooperation of the first fixing bolt 412 with the first threaded hole 209, the second threaded hole 409 and the third threaded hole 411, and the reciprocating motion of the lead screw is realized when the transmission sprocket 410 rotates, thereby realizing the stroke correction of the stroke correction mechanism 2, and the maximum correction stroke is 12 mm. The transmission sprocket 410 is configured so that when it rotates three circles in the same direction, the stroke of the stroke correction mechanism 2 reaches 12 mm.

[0053] The present application uses a ball screw mechanism 4 to replace the transmission form of threaded engagement in the prior art, changing the sliding screw transmission into a rolling screw transmission, reducing the friction between the threaded engagement, reducing the wear rate of the device, and improving the transmission accuracy and efficiency, so that the transmission efficiency is increased to 0.9-0.98, thereby improving production efficiency.

[0054] In each stroke correction part of the entire stroke correction device, the three stroke correction mechanisms 2 are connected by a transmission mechanism 6, such as Figure 1-3As shown, the transmission mechanism 6 includes a motor support frame 601 arranged on the transmission wall panel 101, a reduction motor 602 is arranged on the motor support frame 601, and a driving sprocket 603 is arranged at the output end of the reduction motor 602. In addition, a plurality of tensioning mechanisms are also arranged on the transmission wall panel 101, each tensioning mechanism includes a tensioning seat 604, a tensioning sprocket 605 is arranged on the tensioning seat 604, the driving sprocket 603, three transmission sprockets 410 and a plurality of tensioning sprockets 605 are connected together through a transmission chain 606. When the reduction motor 602 is working, the three stroke correction mechanisms 2 are driven by the transmission chain 606 to perform stroke correction actions at the same time. The working form of the reduction motor 602 is staged forward and reverse rotation. Based on the above structure, the demand for the number of motors is reduced, and the production cost is reduced.

[0055] In addition, in this technical solution, if Figure 3-4 As shown, a protective sleeve 413 is threadedly connected to one side of the transmission sprocket 410. The diameter of the protective sleeve 413 is larger than the diameter of the extension portion 403 of the lead screw. In the whole process of the reciprocating motion of the lead screw, the protective sleeve 413 covers the extension portion 403 of the lead screw to protect the lead screw. In addition, an oil passage 415 is provided inside the fourth mounting portion 407 of the nut. The oil passage 415 is connected to the rolling groove 406 on the lead screw. Correspondingly, an oil filling hole 414 is provided on the transmission sprocket 410. The oil filling hole 414 is connected to the oil passage 415 to fill lubricating oil into the rolling groove 406. After the oil filling is completed, it is sealed with a cover.

[0056] Specifically, when the utility model is installed and used, the stroke correction mechanism 2 is first assembled to ensure that when the bearing seat is fixed, the rotating transmission sprocket 410 can make the lead screw realize reciprocating motion, and then the three stroke correction mechanisms 2 are set as a group on the transmission wall plate 101 through the first mounting portion 201 of the bearing seat, and the three stroke correction mechanisms 2 are connected in series by the transmission mechanism 6, so that the installation of one set of stroke correction parts is completed, and two sets of stroke correction parts can be installed in the tail frame 1 of a false twist texturing machine to improve production efficiency;

[0057] After verifying that each stroke correction mechanism 2 can be used normally, it is connected to the groove drum box 3 located outside the rear frame 1 by using a connecting mechanism. At this point, the installation and use of the stroke correction device as a whole is completed.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new stroke correction device, applied to a false twist texturing machine, characterized in that: The stroke correction device is arranged in the rear frame of the false twist texturing machine, and comprises: A transmission wall plate, wherein a group of stroke correction parts are symmetrically arranged on the transmission wall plate, wherein each stroke correction part includes three stroke correction mechanisms with completely identical structures, the three stroke correction mechanisms are connected by a transmission mechanism, and each stroke correction mechanism is connected to a groove drum box located outside the rear frame through a connecting mechanism, and the groove drum box is provided with a connecting rod; The stroke correction mechanism comprises a bearing seat, wherein the bearing seat comprises a first mounting portion, a second mounting portion and a third mounting portion which are integrally formed, wherein: The stroke correction mechanism is installed on the transmission wall plate as a whole through the first mounting part; the second mounting part is located on one side of the first mounting part, the interior of the second mounting part is a hollow cylindrical mounting cavity, a threaded sleeve is provided in the mounting cavity, a bearing and a bearing retaining ring are provided between the second mounting part and the threaded sleeve, one end of the threaded sleeve is provided with a limiting protrusion, and the other end of the threaded sleeve is provided with a plurality of first threaded holes along its circumference. On this basis, a nut is threadedly connected on the outer wall of the threaded sleeve, and after the nut is installed in conjunction with the first washer, the bearing and the threaded sleeve are axially fixed in the mounting cavity by cooperating with the limiting protrusion and the bearing retaining ring; the third mounting part is located on the other side of the first mounting part, and the third mounting part includes a group of symmetrically arranged limiting blocks, and there is a gap between the group of limiting blocks; In addition, the stroke correction mechanism also includes a ball screw mechanism arranged inside the threaded sleeve, the ball screw mechanism includes a screw, the screw is integrally composed of a connecting portion, a working portion and an extending portion, wherein the connecting portion and the extending portion are respectively located on both sides of the working portion, and the connecting portion extends to the outside of the rear frame of the vehicle; the cross-section of the connecting portion is rectangular, and the thickness is smaller than the diameter of the working portion, the end of the connecting portion is connected to the groove barrel box through the connecting mechanism, the connecting portion passes through a gap between a group of the limit blocks, and in the gap, limit mechanisms are also provided on both sides of the connecting portion; a spiral rolling groove is opened on the outer surface of the working portion, a plurality of balls are arranged in the rolling groove, a nut is connected to the outer surface of the screw through ball rolling, and the nut includes an integrally formed fourth mounting portion and a fifth mounting portion, wherein the fourth mounting portion is provided with a plurality of second threaded holes, and the positions and sizes of the plurality of second threaded holes correspond to the plurality of first threaded holes; On this basis, the stroke correction mechanism also includes a transmission sprocket arranged on one side of the fourth mounting part on the nut, and the transmission sprocket is provided with a plurality of third threaded holes corresponding to the position and size of the second threaded hole. The transmission sprocket is fixed by the cooperation of the first fixing bolt and the first threaded hole, the second threaded hole and the third threaded hole, and the reciprocating motion of the lead screw is realized when the transmission sprocket rotates, thereby realizing the stroke correction of the stroke correction mechanism, and the maximum correction stroke is 12mm.

2. A novel stroke correction device according to claim 1, characterized in that: In the rear frame, the transmission mechanism includes a motor support frame arranged on the transmission wall panel, the motor support frame is provided with a reduction motor, and the output end of the reduction motor is provided with a driving sprocket. In addition, a number of tensioning mechanisms are also provided on the transmission wall panel, each tensioning mechanism includes a tensioning seat, and the tensioning seat is provided with a tensioning sprocket. The driving sprocket, the three transmission sprockets and the several tensioning sprockets are connected together by a transmission chain.

3. A novel stroke correction device according to claim 1, characterized in that: In the stroke correction mechanism, an operating hole is also opened on the second mounting portion of the bearing seat, and the bearing and the bearing retaining ring in the mounting cavity constitute a bearing assembly. The bearing assembly is symmetrically arranged in two groups, and in each group of bearing assemblies, a second gasket is also arranged between the bearing and the bearing retaining ring.

4. A novel stroke correction device according to claim 3, characterized in that: In the stroke correction mechanism, the bearing in the mounting cavity is a tapered roller bearing.

5. A novel stroke correction device according to claim 1, characterized in that: In the stroke correction mechanism, a protective sleeve is threadedly connected to one side of the transmission sprocket, the diameter of the protective sleeve is larger than the diameter of the extended portion of the lead screw, and the protective sleeve covers the extended portion of the lead screw throughout the entire reciprocating motion of the lead screw.

6. A novel stroke correction device according to claim 1, characterized in that: In the ball screw mechanism, the connecting mechanism includes an active end and a driven end that are connected to each other in a cooperative manner. The active end is a stroke correction mechanism end, including a first anti-slip groove arranged at the end of the connecting part of the screw, the first anti-slip groove is provided with a plurality of anti-slip teeth, and the first anti-slip groove is also provided with a first connecting hole; the driven end is a groove drum box end, including a second anti-slip groove arranged at the end of the connecting rod, the second anti-slip groove is also provided with a plurality of anti-slip teeth, and the second anti-slip groove is also provided with a second connecting hole. The stroke correction mechanism is connected to the groove drum box through the staggered cooperation between the anti-slip teeth on the first anti-slip groove and the second anti-slip groove, and at the same time through the cooperation of the second fixing bolt with the first connecting hole and the second connecting hole.

7. A novel stroke correction device according to claim 1, characterized in that: In the ball screw mechanism, the limiting mechanism located on both sides of the screw connection part includes a group of countersunk holes provided on a limiting block, and a group of mounting holes correspondingly provided on the other limiting block. In addition, the limiting mechanism also includes a liner block provided in the gap between a group of limiting blocks. Two liner blocks are provided and are respectively located on both sides of the screw connection part. The two liner blocks are both slidably abutted against a group of limiting blocks. On this basis, each liner block is provided with a through hole, and the through hole on each liner block is cooperated with the corresponding countersunk hole and mounting hole to be connected to an adjustment shaft.

8. A novel stroke correction device according to claim 7, characterized in that: The adjusting shaft is a stepped shaft, which is integrally composed of a rotating part, an adjusting part and a fixed part, wherein the rotating part is fitted in the countersunk hole; the adjusting part is an eccentric shaft, which is fitted in the through hole of the liner, and the center line of the eccentric shaft deviates by 0.5mm from the center line of the adjusting shaft as a whole; the fixed part is fitted in the mounting hole; by rotating the two adjusting shafts, the eccentric rotation action of the adjusting part is utilized to make the two liner blocks slide toward each other along the gaps between a group of limit blocks, respectively, to squeeze the connecting part of the limit screw, and the distance between each liner block and the connecting part of the screw is 0.02mm.

9. A novel stroke correction device according to claim 1, characterized in that: An oil passage is also provided inside the fourth mounting portion of the nut, and the oil passage is connected to the rolling groove on the lead screw. An oil filling hole is provided on the transmission sprocket, and the oil filling hole is connected to the oil passage for filling lubricating oil into the rolling groove.

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