Spindle for ring spinning frame

Abstract

The utility model belongs to the technical field of ring spinning frames, and particularly relates to a spindle for a ring spinning frame, which comprises a spindle blade, a wharve, a yarn sticking device and a yarn cutting device. Wherein the spindle blade is used for supporting the whole spindle structure and comprises a connecting part and a working part which are integrally formed; the wharve covers the connecting part of the spindle blade, and a limiting groove and an assembling groove are formed in the circumferential outer wall of the wharve; the yarn sticking device is arranged in the assembling groove in a matched mode through a tenon-and-mortise assembly and comprises a bearing part and yarn sticking parts evenly distributed on the bearing part. The yarn cutter is in interference fit in the limiting groove; according to the spindle for the ring spinning frame, the yarn sticking device and the assembling groove are connected in a matched mode through the tenon-and-mortise assembly, on the basis that the yarn cutting device limits the position of the yarn sticking device and cuts off yarn, the yarn sticking part on the yarn sticking device is used for leaving the head of tail yarn of the yarn, and the tail yarn is thrown out in a centrifugal mode; and the head leaving rate of the whole ring spinning frame is improved, so that the yield of the whole ring spinning frame in unit time is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ring spinning machines, and specifically relates to a spindle for ring spinning machines. Background Technology

[0002] In the textile industry, processing raw fibers into fine yarns suitable for weaving requires a complete set of spinning process equipment. Among them, the ring spinning machine is one of the most mainstream and important pieces of equipment. Therefore, increasing the output of the ring spinning machine per unit time can significantly increase the output of the entire spinning process. To increase the output of the ring spinning machine per unit time, it is necessary not only to increase the speed of the spindle and drafting roller, but also to ensure that the ring spinning machine operates stably during spinning and that the number of yarn breaks is kept as low as possible when exchanging empty and full yarn tubes, thereby reducing the time spent on re-splicing broken yarns.

[0003] To achieve this effect, there is a Chinese utility model patent with publication number CN115522291A, which sets a yarn clamp at the lower part of the spindle of a ring spinning machine. When the spinning movement is about to stop, the yarn clamp actively clamps the lower end of the yarn end. When the spinning activity starts, the clamped yarn end is actively released due to the interaction of forces. This separation and engagement phenomenon can retain and remove the yarn end, greatly reducing manual intervention and ensuring the continuity of production.

[0004] However, existing yarn clamps and other devices have complex structures, requiring precision design and making manufacturing and assembly difficult, resulting in high manufacturing costs. Furthermore, the elastic materials required for yarn clamps have an objective fatigue limit, becoming unstable after a certain number of uses, exhibiting poor clutch performance, and prone to failure. In addition, the yarn clamps themselves are relatively heavy and need to rotate with the spindles during use, naturally leading to increased ineffective energy consumption. For relatively inefficient worsted spinning equipment like ring spinning machines, the increase in output is intuitively guaranteed by increasing the number of spindles. Since yarn clamps and spindles are of equal quantity, the total ineffective energy consumption caused by a large number of yarn clamps cannot be ignored. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a spindle for a ring spinning machine. The spindle disc structure on the original spindle is redesigned, and an assembly groove is set on the spindle disc. The yarn attacher is connected to the assembly groove by tenon and mortise components. Based on the yarn cutter limiting the position of the yarn attacher and also cutting the yarn, the yarn attaching part on the yarn attacher retains the yarn tail and also centrifugally throws out the tail yarn, thereby improving the yarn tail retention rate of the ring spinning machine and thus increasing the output of the entire ring spinning machine per unit time.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A spindle for a ring spinning machine, comprising:

[0008] A spindle rod is used to support the entire spindle structure. The spindle rod includes an integrally formed connecting part and a working part. A sleeve is fitted on the working part, and a yarn tube is fitted on the sleeve for winding the yarn output by the ring spinning machine.

[0009] The ingot disc is cylindrical in shape and covers the connecting part of the ingot rod. A limiting groove is formed on the outer circumference of the ingot disc near the top. An assembly groove is provided below the limiting groove, and the bottom diameter of the assembly groove is larger than the bottom diameter of the limiting groove.

[0010] The yarn adhesive is a hollow cylinder. It consists of a cylindrical support part and yarn adhesive parts evenly distributed on the outer circumference of the support part. The support part and the yarn adhesive parts are integrally formed. The yarn adhesive is installed in the assembly groove of the spindle through a tenon and mortise assembly.

[0011] A yarn cutter includes a ring-shaped mounting part and yarn cutting parts evenly distributed on the outer circumference of the mounting part. The yarn cutter is fitted into the limiting groove through the mounting part, and at this time, the lower end face of the mounting part is in contact with the upper end face of the yarn adhesive.

[0012] Based on the above structure, the spindle, yarn attacher, and yarn cutter are all coaxially assembled with the spindle as the axis, and the overall diameter of the yarn cutter is larger than the overall diameter of the yarn attacher.

[0013] Preferably, the outer circumferential wall of the spindle disc is further provided with a transmission groove, the transmission groove is located below the assembly groove, a transmission belt is fitted in the transmission groove, and the transmission belt is connected to the ring spinning machine, forming a transmission structure in which the ring spinning machine provides rotational power and transmits the rotational power to the spindle disc through the transmission belt, and the spindle disc drives the entire spindle and yarn tube to rotate.

[0014] Furthermore, in the yarn attaching device, the yarn attaching part is composed of a plurality of teeth evenly distributed, and each tooth has a spherical protrusion on its top.

[0015] Preferably, the tenon and mortise assembly includes a positioning boss on the inner circumference of the bearing portion and a positioning groove at the bottom of the assembly groove, wherein the positioning groove and the positioning boss cooperate with each other.

[0016] Preferably, the tenon and mortise assembly includes a plurality of first mating teeth evenly distributed on the inner circumferential wall of the bearing portion, and a plurality of second mating teeth evenly distributed on the bottom of the assembly groove, wherein the plurality of first mating teeth and the plurality of second mating teeth engage with each other.

[0017] Preferably, the tenon and mortise assembly includes a first thread on the inner circumferential wall of the bearing portion and a second thread on the bottom of the assembly groove, wherein the first thread and the second thread cooperate with each other.

[0018] Preferably, the tenon and mortise assembly includes a first magnet fixedly disposed on the inner circumferential wall of the bearing portion and a second magnet fixedly disposed on the bottom of the assembly groove, wherein the first magnet and the second magnet are magnetically engaged.

[0019] Preferably, the mounting part of the yarn cutter is interference-fitted with the limiting groove.

[0020] The beneficial effects of this utility model are as follows:

[0021] In general, the spindle for ring spinning machines provided by this utility model abandons the yarn clamps and other devices commonly used in the prior art. The original spindle disc is redesigned to allow it to obtain the spindle rotation power provided by the ring spinning machine. An assembly groove is opened on the spindle disc, and a yarn adhesive is installed in the assembly groove through tenon and mortise components. The yarn cutter limits the position of the yarn adhesive and also serves to cut off the yarn. When the full yarn tube is pulled out, the yarn adhesive part on the yarn adhesive leaves the yarn tail. When the empty yarn tube is assembled and spinning begins, the yarn tail on the yarn adhesive is thrown out, which improves the yarn tail retention rate of the ring spinning machine and thus increases the output of the entire ring spinning machine per unit time.

[0022] Specifically, this invention uses tenon and mortise components to limit the circumferential rotation capability of the yarn adhesive in the assembly groove, and uses the interference fit between the yarn cutter and the limiting groove to restrict the axial movement of the yarn adhesive. This allows the spindle, yarn adhesive, and yarn cutter to be coaxially assembled around the spindle rod and achieve rotational movement. Compared with yarn clamping devices that are heavier and have more complex assembly structures, this invention reduces production costs. At the same time, the simple assembly structure of this invention also avoids the increase of ineffective energy consumption. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial cross-sectional view of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the specific structure of the yarn-adhesive part in the yarn-adhesive device of this utility model;

[0026] Figure 3 This is a schematic diagram of an embodiment of the mortise and tenon component of this utility model, in which the positioning boss and the positioning groove cooperate with each other;

[0027] Figure 4 This is a schematic diagram of an embodiment of the mortise and tenon component of this utility model, in which the first mating tooth and the second mating tooth cooperate with each other;

[0028] Figure 5 This is a schematic diagram of the specific structure of the yarn cutter in this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the yarn cutter in this utility model. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] The spindle for ring spinning machines provided by this utility model is mainly aimed at the specific structural improvement required for the spindle during the collective doffing process after spinning is completed on the ring spinning machine. Therefore, it should be noted that the equipment mentioned in the spinning process and the collective doffing process in this application all adopt existing technology. Those skilled in the art can consult existing published patents and other materials to learn about its specific structure. In this application, only its function is used.

[0033] More specifically, collective doffing is an action performed after a ring spinning machine completes one spinning cycle. Its purpose is to replace the full yarn bobbin with an empty yarn bobbin for further spinning. The general process of collective doffing includes the ring spinning machine conveying the empty yarn bobbin, pulling the full yarn bobbin from the spindle, assembling the empty yarn bobbin onto the spindle, and conveying the full yarn bobbin. The process of pulling the full yarn bobbin from the spindle is performed by the ring spinning machine using devices such as the bobbin gripper in the doffing system. When the bobbin gripper pulls the full yarn bobbin from the spindle, there is a twisted yarn between the full yarn bobbin and the rollers of the ring spinning machine. In the existing technology, this part of the yarn is called the "retained yarn". The yarn is clamped by a yarn clamp and then cut, so that the full yarn tube can be pulled out smoothly. Then, after the full yarn tube is placed in the designated position, the tube gripper clamps the empty yarn tube and inserts it into the spindle. Then the ring spinning machine continues to spin. At this time, the part of the retained yarn held by the yarn clamp will be wound on the empty yarn tube, and the other part of the retained yarn will be cut again and left in the yarn clamp body. When the yarn clamp gradually starts to increase its speed along with the spindle, the centrifugal force is used to throw the tail yarn in the yarn clamp out, thus finally completing the automatic yarn start and the processing of the tail yarn.

[0034] The above is an overview of the yarn tail retention and automatic yarn head generation actions performed during the assembly of the ring spinning machine. These actions are important ways to increase the output per unit time of the ring spinning machine. However, due to considerations of equipment and production costs, the yarn clamp has a complex structure that requires precision design and is difficult to manufacture and assemble, resulting in high manufacturing costs. In addition, the yarn clamp itself is heavy and needs to rotate with the spindle during use, which naturally leads to increased ineffective energy consumption. In view of this, the inventor of this utility model uses a simpler equivalent structure to replace the yarn clamp while ensuring the yarn tail retention rate of the ring spinning machine, which can reduce the cost of yarn tail retention.

[0035] The solution provided by this utility model will now be described in detail with reference to the accompanying drawings.

[0036] In this technical solution, such as Figure 1 As shown, a spindle for a ring spinning machine includes: a spindle bar 1, a spindle disc 2, a yarn attacher 3, and a yarn cutter 4.

[0037] The spindle 1 is used to support the entire spindle structure. The spindle 1 includes an integrally formed connecting part 101 and a working part 102. A sleeve 5 is sleeved on the working part 102, and a yarn tube is sleeved on the sleeve 5 for winding the yarn output by the ring spinning machine. In this application, the cooperation between the yarn tube and the spindle adopts the common method in the prior art, which is not limited here, and the yarn tube is not shown in the figure.

[0038] The ingot disc 2 is cylindrical in shape and covers the connecting part 101 of the ingot rod 1. A limiting groove 201 is formed on the outer circumference of the ingot disc 2 near the top. An assembly groove 202 is provided below the limiting groove 201, and the bottom diameter of the assembly groove 202 is larger than the bottom diameter of the limiting groove 201. In addition, a transmission groove 203 is provided on the outer circumference of the ingot disc 2. The transmission groove 203 is located below the assembly groove 202, and a transmission belt is fitted inside the transmission groove 203.

[0039] Based on the above embodiments, the spindle 2 is connected to the ring spinning machine via a transmission belt, forming a transmission structure in which the ring spinning machine provides rotational power and transmits the rotational power to the spindle 2 via the transmission belt, and the spindle 2 drives the entire spindle and yarn tube to rotate.

[0040] The more important aspect of this application is, such as Figure 1-4 As shown, the yarn adhesive 3 is a hollow cylinder. The yarn adhesive 3 consists of a cylindrical support part 301 and yarn adhesive parts 302 evenly distributed on the outer circumference of the support part 301. The support part 301 and the yarn adhesive parts 302 are integrally formed. The yarn adhesive parts 302 are composed of several teeth 303 evenly distributed. Each tooth 303 has a spherical protrusion 304 at its top. Based on this, the yarn adhesive 3 is fitted into the assembly groove 202 of the spindle 2 by tenon and mortise assembly 6.

[0041] Based on the above structure, in one embodiment, such as Figure 3 As shown, the tenon and mortise assembly 6 includes a positioning boss 601 on the inner circumference of the bearing portion 301 and a positioning groove 602 on the bottom of the assembly groove 202. The positioning groove 602 and the positioning boss 601 cooperate with each other. This structure is used to restrict the circumferential rotation of the yarn adhesive 3 in the assembly groove 202.

[0042] In other embodiments, such as Figure 4 As shown, the tenon and mortise assembly 6 includes a plurality of first mating teeth 603 evenly distributed on the inner circumferential wall of the bearing portion 301, and a plurality of second mating teeth 604 evenly distributed on the bottom of the mounting groove 202. The plurality of first mating teeth 603 and the plurality of second mating teeth 604 cooperate with each other. This structure can also be used to restrict the circumferential rotation of the yarn adhesive 3 in the mounting groove 202.

[0043] Based on the above embodiments, this application may further provide a first thread on the inner circumferential wall of the support portion 301 and a second thread on the bottom of the assembly groove 202, and use the mutual cooperation of the first thread and the second thread to restrict the circumferential rotation of the yarn adhesive 3 in the assembly groove 202; in addition, this application may further provide a first magnet on the inner circumferential wall of the support portion 301 and a second magnet on the bottom of the assembly groove 202, and use the mutual cooperation of the first magnet and the second magnet to restrict the circumferential rotation of the yarn adhesive 3 in the assembly groove 202.

[0044] Therefore, in general, it is necessary to restrict the circumferential rotation of the yarn attacher 3 within the assembly groove 202, because when using the yarn attacher 3 to leave a yarn end, the yarn attacher 3 needs to rotate with the spindle 2 to wind the yarn onto the yarn attacher 3. In addition, this application also considers the restriction of the axial movement of the yarn attacher 3 during use. What is more novel is that this application uses the yarn cutter 4 to provide the yarn cutting action, and at the same time uses the yarn cutter 4 to restrict the axial movement of the yarn attacher 3.

[0045] Specifically, such as Figure 1 , Figure 5-6 As shown, the yarn cutter 4 includes a ring-shaped mounting part 401 and a yarn cutting part 402 evenly distributed on the outer circumference of the mounting part 401. The yarn cutter 4 is fitted into the limiting groove 201 through the mounting part 401, and at this time, the lower end face of the mounting part 401 is in contact with the upper end face of the yarn adhesive 3.

[0046] Based on the above structure, the spindle 2, yarn attacher 3, and yarn cutter 4 are all coaxially assembled with the spindle 1 as the axis, and the overall diameter of the yarn cutter 4 is larger than the overall diameter of the yarn attacher 3. The mounting part 401 of the yarn cutter 4 is interference-fitted with the limiting groove 201, which can restrict the axial movement of the yarn attacher 3 after installation.

[0047] Specifically, when the spindle is fully spun into the yarn tube and the ring spinning machine begins to fall collectively, the ring rail and traveler descend rapidly to the middle position of the yarn binder 3, causing the yarn output from the traveler to the spindle to be output to the yarn binder 3. At this time, the spindle continues to rotate due to inertia, causing the yarn to wrap around the yarn binder 3. The yarn is wrapped in the gaps between several teeth 303 through the spherical protrusions 304 on the teeth 303 of the yarn binder 3. At this time, due to the static friction between the yarn and the yarn binder 3, after the yarn is wrapped 1-2 times, the spindle stops rotating and begins to pull the yarn tube. During this process, the yarn cutter 4 cuts the yarn between the yarn binder 3 and the full yarn tube without pulling out the yarn wrapped around the yarn binder 3, thus leaving the yarn head.

[0048] Next, after the spindle is inserted into the empty yarn tube, the ring rail moves upward, and the ring spinning machine starts at low speed. At this time, the yarn tail generates a large frictional force in the gap between several teeth 303 on the yarn bonder 3 along the tangential direction of the yarn bonder 3, so that it will not slip off when the spindle rotates at low speed. The spindle completes the automatic yarn head generation function and starts a new spinning cycle. When the spindle speed continues to increase, to about 15,000 r / min, the yarn tail wrapped on the yarn bonder 3 is detached from the yarn bonder 3 under the action of centrifugal force and flies out, and is sucked away by the negative pressure suction device on the ring spinning machine body, completing the automatic removal of the yarn tail.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spindle for a ring spinning machine, characterized in that, include: A spindle rod is used to support the entire spindle structure. The spindle rod includes an integrally formed connecting part and a working part. A sleeve is fitted on the working part, and a yarn tube is fitted on the sleeve for winding the yarn output by the ring spinning machine. The ingot disc is cylindrical in shape and covers the connecting part of the ingot rod. A limiting groove is formed on the outer circumference of the ingot disc near the top. An assembly groove is provided below the limiting groove, and the bottom diameter of the assembly groove is larger than the bottom diameter of the limiting groove. The yarn adhesive is a hollow cylinder. It consists of a cylindrical support part and yarn adhesive parts evenly distributed on the outer circumference of the support part. The support part and the yarn adhesive parts are integrally formed. The yarn adhesive is installed in the assembly groove of the spindle through a tenon and mortise assembly. A yarn cutter includes a ring-shaped mounting part and yarn cutting parts evenly distributed on the outer circumference of the mounting part. The yarn cutter is fitted into the limiting groove through the mounting part, and at this time, the lower end face of the mounting part is in contact with the upper end face of the yarn adhesive. Based on the above structure, the spindle, yarn attacher, and yarn cutter are all coaxially assembled with the spindle as the axis, and the overall diameter of the yarn cutter is larger than the overall diameter of the yarn attacher.

2. The spindle for a ring spinning machine according to claim 1, characterized in that: The outer circumferential wall of the spindle disc is also provided with a transmission groove, which is located below the assembly groove. A transmission belt is fitted inside the transmission groove and is connected to the ring spinning machine through the transmission belt, forming a transmission structure in which the ring spinning machine provides rotational power and transmits the rotational power to the spindle disc through the transmission belt, and the spindle disc drives the entire spindle and yarn tube to rotate.

3. The spindle for a ring spinning machine according to claim 1, characterized in that: In the yarn adhesive device, the yarn adhesive part is composed of a number of teeth evenly distributed, and each tooth has a spherical protrusion on its top.

4. A spindle for a ring spinning machine according to claim 1, characterized in that: The tenon and mortise assembly includes a positioning boss on the inner circumference of the bearing portion and a positioning groove at the bottom of the assembly groove, wherein the positioning groove and the positioning boss cooperate with each other.

5. A spindle for a ring spinning machine according to claim 1, characterized in that: The tenon and mortise assembly includes a plurality of first mating teeth evenly distributed on the inner circumference of the bearing portion and a plurality of second mating teeth evenly distributed on the bottom of the assembly groove, wherein the plurality of first mating teeth and the plurality of second mating teeth engage with each other.

6. A spindle for a ring spinning machine according to claim 1, characterized in that: The tenon and mortise assembly includes a first thread on the inner circumference of the bearing portion and a second thread on the bottom of the assembly groove, wherein the first thread and the second thread cooperate with each other.

7. A spindle for a ring spinning machine according to claim 1, characterized in that: The tenon and mortise assembly includes a first magnet fixedly disposed on the inner circumferential wall of the bearing portion and a second magnet fixedly disposed on the bottom of the assembly groove, wherein the first magnet and the second magnet are magnetically engaged.

8. A spindle for a ring spinning machine according to claim 1, characterized in that: The mounting part of the yarn cutter is interference-fitted with the limiting groove.

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