Yarn catching device of ring spinning spindle
By designing a combination device of a spiked yarn catcher, a mounting sleeve, and a spindle base in a ring spinning machine, the problems of complex and costly replacement of spindle components in the prior art are solved, and convenient replacement and reduced drive force requirements are achieved.
Patent Information
- Application Number
- CN202422922796.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In existing ring spinning machines, the entire spindle needs to be replaced after the thorn yarn catcher wears out, resulting in high manufacturing costs and increased drive force requirements, and the replacement process is complicated.
Design a combined device including a spiked yarn catcher, a mounting sleeve, and a spindle base, which enables easy replacement through an interlocking structure and chemical adhesive, avoiding the need to replace spindle components.
It reduces the time and cost of replacing the barbed yarn catcher, reduces the driving force requirement, and simplifies the replacement process.
Smart Images
Figure CN223793289U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present utility is directed to the arrangement of spindles of a ring spinning frame. More particularly, the present utility is directed to a spiked ring yarn catcher arrangement for each spindle of a ring spinning frame. BACKGROUND
[0002] Textile spinning machines are used to convert fiber raw material into yarn through various stages and processes. There are a large number of machines continuously running in a textile spinning mill, maintaining a high rate of production. At the end of each stage of the spinning process, various end products are generated, such as fiber bundles, slivers, roving, spun yarn, and yarn.
[0003] In a spinning machine in a textile mill, the purpose of the spinning frame is to draw the roving to the desired degree, insert the required twist into the sliver of fibers to bind the fibers together to form yarn, and wind the yarn onto ring bobbins. The main purpose of a ring spinning frame is to convert roving into spun yarn by inserting twist to enhance the strength of the yarn. Textile spinning machines are equipped with an automatic doffing arrangement. When the yarn wound on the bobbin located on the spindle reaches the predetermined length, the fully wound bobbin is replaced with an empty tube. After the bobbin is fully wound, the ring rail moves from the upper portion of the winding zone to the bottom of the spindle, moving vertically downward. During the doffing process, the yarn from the full bobbin needs to be secured and the bobbin needs to be pulled out of the spindle. During this process, the bottom of the spindle is wound with several layers / coils of yarn, which is known as bottom winding. The yarn in the bottom winding area needs to maintain the connection between the ring and the spindle and continue to wind after the full bobbin is replaced with an empty tube. When the bobbin is fully wound with yarn and doffed, the yarn needs to be wound at least 1 to 2 layers on the bottom winding surface in the bottom area of the spindle, securing the yarn with the spikes on its surface, which is a known technique in the art. The blade on the yarn cutter of the existing type cuts the yarn while pulling out the full bobbin, and each time the doffing is done, it is wound in the bottom area of the spindle. The bottom winding surface should be covered / wound with a thin layer of yarn.
[0004] Typically, the bottom winding area is composed of a metal rigid portion. The metal spiked yarn catcher assembly is pressed against the spindle with an interference fit. To increase the friction between the yarn catcher and the spindle, additional chemical adhesives are also used in the art. In this case, the spiked yarn catcher wears out after a certain period of operation. Therefore, the bottom winding portion has to be replaced periodically. Since the metal spiked yarn catcher is pressed against the spindle, it is difficult to replace only the spiked yarn catcher. In this case, the entire spindle arrangement has to be replaced. This increases the manufacturing cost, and the driving force required to drive the spindle also becomes higher.
[0005] As an improvement, a polymer material containing a spike sleeve is used to capture and secure the yarn on the metal crown. The metal crown is mounted on the spindle, and the top of the metal crown integrates a knife / cutter for separating the yarn between the bottom winding portion and the full bobbin. The metal crown is mounted on the spindle by interference fit. The polymer portion for securing the yarn is circular, and the circular portion has intermittent flats and spike portions. When the polymer portion is worn or damaged, the entire ring yarn catcher assembly must be replaced. The inner surface of the spike yarn catcher assembly and the outer surface of the spindle are secured by interference fit or chemical adhesive, etc. When the yarn catcher is replaced, the geometry of the top portion of the spindle can be affected, and the chemical bond between the polymer spike sleeve and the metal crown is not sufficient. The manufacturing cost is relatively high, and the force required to drive the spindle is still relatively high. In this case, the entire spindle must be replaced. This replacement process requires special installation and removal tools. The time required to replace the spindle is very long.
[0006] To overcome the above-mentioned shortcomings, the utility model provides an improved spike sleeve for each spindle of a ring spinning machine, which helps to easily replace the flexible ring with spike portions without replacing the spindle and spindle components. Utility model content
[0007] The utility model provides a ring spinning spindle yarn catching device for catching the yarn in the bottom winding process, which can be retrofitted to the existing spindle in the textile mill, and can realize the replacement of the spike-shaped yarn catcher from the spindle more quickly without replacing the spindle and spindle components.
[0008] The technical scheme of the utility model is:
[0009] A ring spinning spindle yarn catching device, characterized in that it comprises:
[0010] A spike-shaped yarn catcher, whose outer surface is provided with a spike portion, and whose inner surface is provided with at least one protruding portion; a mounting sleeve, whose outer surface is provided with at least one recessed portion, and whose inner surface is provided with a sleeve knurl; a spindle base, whose outer surface is provided with a base knurl;
[0011] In the combined state, the spike-shaped yarn catcher, the mounting sleeve and the spindle base are sleeved on the spindle from top to bottom, and when the spike-shaped yarn catcher is sleeved on the upper end of the mounting sleeve, the protruding portion engages with the recessed portion, and when the spindle base is sleeved in the lower end of the mounting sleeve, the sleeve knurl engages with the base knurl.
[0012] Further, the top end of the spike-shaped yarn catcher is further provided with a cutter adjacent to the side surface of the spindle.
[0013] Further, the tip of the thorn-shaped yarn catcher is provided with a crown, and the crown periphery comprises a plurality of sawtooth-shaped hooking yarn portions and a toothless hooking yarn groove arranged between two hooking yarn portions.
[0014] Further, each hooking yarn portion is folded towards the spindle direction to form a folded edge.
[0015] Further, the crown is integrally formed on the tip of the thorn-shaped yarn catcher, or the lower end of the crown is sleeved or bonded in the tip of the thorn-shaped yarn catcher.
[0016] Further, the outer surface of the thorn-shaped yarn catcher is provided with a flat portion, and the flat portion and the thorn portion are arranged alternately.
[0017] Further, the thorn-shaped yarn catcher is made of injection-molded polymer or composite material.
[0018] Further, the mounting sleeve is divided into an upper step portion and a lower step portion, and the outer diameter of the lower step portion is larger than that of the upper step portion, the groove portion is arranged on the outer surface of the upper step portion, and the sleeve knurl is arranged on the inner surface of the lower step portion.
[0019] Further, the protruding portion is a strip-shaped protruding strip, and the groove portion is a strip-shaped groove.
[0020] Further, the thorn-shaped yarn catcher is sleeved on the upper step portion of the sleeve knurl, and the intersection part is filled with a chemical adhesive, and the spindle base is sleeved on the inner surface of the lower step portion of the mounting sleeve.
[0021] The beneficial technical effects of the utility model are as follows:
[0022] The outer surface of the spindle base is provided with a base knurl, when the mounting sleeve is in interference fit with the spindle base, the base knurl is engaged with the sleeve knurl on the inner surface of the mounting sleeve, so that the torque is smoothly transmitted from the spindle. The groove portion of the mounting sleeve is engaged with the protruding portion on the thorn-shaped yarn catcher, so that the torque can be easily transmitted from the mounting sleeve to the thorn-shaped yarn catcher. This design can easily replace the worn or damaged thorn-shaped yarn catcher, and during the replacement process, no special installation and disassembly clamp is needed, and the spindle and spindle parts do not need to be replaced, so that the time cost required for replacing the thorn-shaped yarn catcher is reduced.
[0023] In addition, the thorn-shaped yarn catcher is made of injection-molded polymer or composite material, which reduces the manufacturing cost and the cost of driving the spindle driving force. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a schematic view of a spindle with an existing yarn catching device in a ring spinning frame;
[0025] Figure 2 The spindle with the ring spinning spindle yarn catching device of the utility model is shown in the figure;
[0026] Figure 3 The figure is the assembling and disassembling schematic view of the sharp spike yarn catcher and the mounting sleeve in the embodiment 1 of the utility model;
[0027] Figure 4 The figure is the assembling and disassembling schematic view of the sharp spike yarn catcher, the mounting sleeve and the spindle base in the embodiment 1 of the utility model;
[0028] Figure 5 The figure is the assembling and disassembling schematic view of the sharp spike yarn catcher, the mounting sleeve and the spindle base in the embodiment 2 of the utility model;
[0029] Figure 6 The figure is the assembling and disassembling schematic view of the sharp spike yarn catcher and the mounting sleeve in the embodiment 2 of the utility model.
[0030] Among them:
[0031] 100-spindle, 101-sharp spike part; 200-spindle base, 201-base knurl; 300-sharp spike yarn catcher, 301-sharp spike part, 302-protruding part, 303-cutter, 304-crown part, 3041-yarn hooking part, 3042-yarn hooking groove, 305-flat part; 400-mounting sleeve, 401-groove part, 403-step surface; 700-crown part, 701-sawtooth part, 702-sawtooth groove. DETAILED DESCRIPTION
[0032] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
[0033] As Figure 1As shown in the figure, the figure shows the prior art with the underwinding area of the spindle assembly. The spindle 100 contains an underwinding part, in which the underwinding yarn is wound. The ring rail moves in the up-down direction in order to wind the yarn on the ring spinning bobbin on the spindle 100. When the yarn of a predetermined length is wound on the tube (also called a cake or full bobbin), the ring rail moves from the top of the spindle 100 to the bottom area thereof, where the yarn is wound on the pricker portion 101 with a pricker ring area located in the underwinding portion. In the underwinding area, a flexible ring with a pricker portion 101 is provided for holding and capturing the yarn, which is to maintain the further connection between the yarn and the guide and the spindle 100, and to continue to twist with the newly inserted tube after the full bobbin is replaced by an empty tube. The flexible ring with the pricker portion in the prior art described above is made of polymer, and once the flexible ring is worn or damaged, the entire spindle must be replaced. In this replacement process, the geometry of the upper part of the spindle 100 will be affected. The installation and removal of the spindle 100 is a complex process. The replacement of the spindle takes a long time.
[0034] Embodiment 1
[0035] As Figures 2 to 4 shown, the utility model provides a ring spinning spindle yarn capturing device, including prickle yarn catcher 300, be used to install prickle yarn catcher's mounting sleeve 400 and be used to sleeve mounting sleeve 400's spindle base 200. It is applied to the spindle, in the combined state, prickle yarn catcher 300, mounting sleeve 400 and spindle base 200 from top to bottom sleeve on the spindle 100, and prickle yarn catcher 300 sleeve on the upper end of mounting sleeve 400, mounting sleeve 400 lower end sleeve on spindle base 200.
[0036] Specifically, prickle yarn catcher 300 is used for capturing yarn. Its peripheral surface has several plane parts 305 and pricker parts 301, and the plane parts 305 and the pricker parts 301 are staggered, and the yarn is wound on the plane parts 305 and the pricker parts 301 during the underwinding process. The crown 304 for clamping the yarn and the cutter 303 for cutting the yarn during bobbin replacement are integrally formed at the top end of the prickle yarn catcher 300. The cutter 303 of the utility model is a ring blade, which is fixed to the inner side of the spindle 100 adjacent to the top end of the prickle yarn catcher 300; the crown 304 periphery includes several sawtooth-shaped hooking parts 3041 and tooth-lacking-shaped hooking grooves 3042 spaced between the two hooking parts 3041, and each hooking part 3041 and hooking groove 3042 is located on the outer surface of the prickle yarn catcher 300 top end away from the spindle 100.
[0037] As a preferred, the top end of each hooking part 3041 is folded towards the spindle 100 direction, forming a folded edge, so as to better clamp the yarn.
[0038] In addition, in order to engage with the mounting sleeve 400, the inner surface of the thorn-shaped yarn catcher 300 is provided with a plurality of protrusions 302, which are arranged in a ring array on the inner surface of the thorn-shaped yarn catcher 300, and each protrusion 302 of the utility model is a strip-shaped protrusion.
[0039] In order to reduce manufacturing costs and reduce the driving force required to drive the spindle, the entire thorn-shaped yarn catcher 300 is made of a polymer, a composite material, etc. injection molded part.
[0040] The mounting sleeve 400 is provided with an upper step portion and a lower step portion, and the outer diameter of the lower step portion is greater than that of the upper step portion, so that a step surface 403 is formed at the outer surface where the upper step portion and the lower step portion meet. In order to facilitate the torque to be easily transmitted from the mounting sleeve 400 to the thorn-shaped yarn catcher 300, a plurality of groove portions 401 suitable for the protrusions 302 are provided on the outer surface of the upper step portion, and a plurality of groove portions 401 are arranged in a ring array on the outer surface of the upper step portion of the mounting sleeve 400, and each groove portion 401 of the utility model is a strip-shaped groove. In the combined state of the utility model, when the thorn-shaped yarn catcher 300 is sleeved on the upper step portion of the mounting sleeve 400, the bottom surface of the thorn-shaped yarn catcher 300 abuts on the step surface 403, and each protrusion 302 and the groove portion 401 are engaged with each other.
[0041] In addition, in order to enhance the bonding effect, a chemical adhesive can be used at the joint between the mounting sleeve 400 and the thorn-shaped yarn catcher 300. The inner surface of the lower step portion of the mounting sleeve 400 is also provided with a sleeve knurl (not shown).
[0042] The spindle base 200 is used to position the mounting sleeve 400, so that it is not easy to fall off, and on the other hand, it is convenient for the torque to be smoothly transmitted from the spindle to the mounting sleeve 400. Correspondingly, the outer surface of the spindle base 200 is provided with a base knurl 201 matched with the sleeve knurl, and when assembling the press-fit, the spindle base 200 is sleeved on the lower step portion of the mounting sleeve 400 and the two are in interference fit, and the sleeve knurl and the base knurl 201 are engaged, and in the utility model, the sleeve knurl and the base knurl 201 are straight knurls.
[0043] When the thorn portion 301 on the thorn-shaped yarn catcher 300 is worn or damaged, if no chemical adhesive is used at the joint between the mounting sleeve 400 and the thorn-shaped yarn catcher 300, at this time, the thorn-shaped yarn catcher 300 can be pulled out only from the mounting sleeve 400 along the direction of the groove portion 401; if a chemical adhesive is used at the joint between the mounting sleeve 400 and the thorn-shaped yarn catcher 300, the mounting sleeve 400 can be removed only from the spindle base 200 along the direction of the base knurl 201, so that the thorn-shaped yarn catcher 300 can be easily replaced from the spindle 100.
[0044] Example 2
[0045] like Figures 5-6 As shown, to simplify the manufacturing process of the spiked yarn catcher 300, this utility model also includes Embodiment 2. Embodiment 2 differs from Embodiment 1 in two ways. Firstly, in Embodiment 2, the crown 700 and the spiked yarn catcher 300 are two independent parts. The crown 700 is a hollow cylinder, and its lower end can be pressed and fitted into the top of the spiked yarn catcher 300. The upper end of the crown 700, away from the spindle 100, has several serrated portions 701 and serrated grooves 702 spaced between two serrated portions 701. To avoid dust accumulation, the top surface of the crown 700 is a flat surface. Secondly, in Embodiment 2, the bottom of the lower step of the mounting sleeve 400 is also provided with a raised surface, making it easier to disassemble the spiked yarn catcher 300.
[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A ring spinning spindle yarn catching device, characterized in that, It comprises: a spike-shaped yarn catcher (300) with a spike part (301) on its outer surface and at least one protrusion (302) on its inner surface; a mounting sleeve (400) with at least one groove part (401) on its outer surface and sleeve knurling on its inner surface; a spindle base (200) with base knurling (201) on its outer surface; In the combined state, the spike-shaped yarn catcher (300), the mounting sleeve (400) and the spindle base (200) are sleeved on the spindle (100) from top to bottom, and when the spike-shaped yarn catcher (300) is sleeved on the upper end of the mounting sleeve (400), the protrusion (302) is engaged with the groove part (401), and when the spindle base (200) is sleeved in the lower end of the mounting sleeve (400), the sleeve knurling is engaged with the base knurling (201).
2. The ring spinning spindle yarn catching device according to claim 1, characterized in that The top end of the spike-shaped yarn catcher (300) is also provided with a cutter (303) adjacent to the side surface of the spindle (100).
3. The ring spinning spindle yarn catching device according to claim 1, characterized in that The top end of the spike-shaped yarn catcher (300) is provided with a crown (304), and the crown (304) periphery comprises a plurality of sawtooth-shaped hooking yarn parts (3041) and a toothless hooking groove (3042) arranged between two hooking yarn parts (3041).
4. The ring spinning spindle yarn catching device according to claim 3, characterized in that Each of the hooking yarn parts (3041) is folded towards the spindle (100) to form a folded edge.
5. The ring spinning spindle yarn catching device according to claim 3, characterized in that The crown (304) is integrally formed at the top end of the spike-shaped yarn catcher (300), or the lower end of the crown (304) is sleeved in the top end of the spike-shaped yarn catcher (300).
6. The ring spinning spindle yarn catching device according to claim 1, characterized in that The outer surface of the spike-shaped yarn catcher (300) is provided with a flat part (305), and the flat part (305) and the spike part (301) are arranged alternately.
7. The ring spinning spindle yarn catching device according to claim 1, characterized in that, The spike-shaped yarn catcher (300) is made of injection molded polymer or composite material.
8. The ring spinning spindle yarn catching device according to claim 1, characterized in that, The mounting sleeve (400) is divided into an upper step part and a lower step part, and the outer diameter of the lower step part is larger than that of the upper step part, the groove part (401) is arranged on the outer surface of the upper step part, and the sleeve knurling is arranged on the inner surface of the lower step part.
9. The ring spinning spindle yarn catching device according to claim 8, characterized in that The protrusion (302) is a strip-shaped protrusion, and the groove part (401) is a strip-shaped groove.
10. The ring spinning spindle yarn catching device according to claim 8, characterized in that The spike-shaped yarn catcher (300) is sleeved on the upper step part of the sleeve knurling, and the intersection part is filled with chemical adhesive, and the spindle base (200) is sleeved on the inner surface of the lower step part of the mounting sleeve (400).