WO2022262567A1

WO2022262567A1 - Lower spinning assembly of fiber strand conveying mechanism of ring spinning frame

Info

Publication number: WO2022262567A1
Application number: PCT/CN2022/096093
Authority: WO
Inventors: 徐时平
Original assignee: 徐时平
Priority date: 2021-06-19
Filing date: 2022-05-30
Publication date: 2022-12-22
Also published as: CN113417035A

Abstract

A lower spinning assembly of a fiber strand conveying mechanism of a ring spinning frame, comprising a lower supporting member and a lower spinning block (57). The lower spinning block (57) is detachably connected to the lower supporting member; and an upper arc-shaped surface of the lower spinning block (57) supports yarns or an upper arc-shaped surface composed by the upper arc-shaped surface of the lower spinning block (57) together with the lower supporting member supports the yarns. A gap and a curve formed by a fiber strand passing through the gap are changed by changing the arc-shaped surface of the spinning block (57), so that the conversion of a working arc-shaped surface of the lower spinning assembly is facilitated, and a spinning yarn levelness index is optimized; a collection recess (5731) is provided on the spinning block, such that a yarn hairiness index is improved; and carding recesses (5761, 5771) are provided on the spinning block, such that the requirements of siro spinning and solo spinning are met.

Description

The lower spinning unit of the fiber sliver delivery mechanism of the ring spinning frame

technical field

The present invention relates to the conveying mechanism of the strands of the spinning frame, which is generally called the drafting system of the ring spinning frame, and particularly relates to the lower spinning assembly.

Background technique

As shown in Figure 1, the fiber strand conveying mechanism of the disclosed ring spinning frame of Chinese patent document CN112760766A, thereafter the roller rubber roller 35, the middle roller rubber roller 4, the front roller rubber roller 30 rotate clockwise, and the rear roller shaft 32 , the middle roller shaft 3 and the front roller shaft 1 rotate counterclockwise, the yarn F is delivered to the yarn guide hook 36 and then to the steel collar 38, and the yarn L is formed by rotating and twisting around the spindle tube 37, wherein the rear roller shaft 32, the middle roller shaft The roller shaft 3 and the front roller shaft 1 are actively rotating, and the rear roller rubber roller 35, the middle roller rubber roller 4, and the front roller rubber roller 30 are passively rotating. Generally, the speed of the middle roller shaft 3 is 1.1-3 times that of the rear roller shaft 32 , the speed of the front roller shaft 1 is 10-150 times that of the middle roller shaft 3, and the roving becomes thinner through drafting. Because the speed ratio of the middle roller rubber roller 4 and the front roller rubber roller 30 is large, the whiskers change rapidly. Therefore, the upper pin cover plate 6, the lower pin 2, and the conveyor belt 7 are set in the middle to form a stable friction space to control the whiskers. strip. After the spring cover 15 is pressed down by the cradle 9, it is transmitted to the cover support 13 through the upper pin spring 16, and the upper pin cover 6 is connected with the cover support 13 through the hinge block 17 and the hinge block seat 18, so that the upper pin cover The plate 6 gets a downward pressure, and a stable fit gap is formed between the arc surface of the upper pin cover plate 6 and the arc surface of the lower pin 2. The whiskers are always driven by the conveyor belt 7 and transported forward in the gap, and the whiskers are always on the lower pins. 2 on sliding friction. Like this, the spinning sliver F always rubs against the arc surface of the working section of the lower pin 2. When the above-mentioned mechanism spins yarns of different thicknesses and different raw materials, different arc surfaces of the working section need to be matched, so that the entire lower pin needs to be replaced, and if the entire lower pin changes the arc surface, the spacer must also be replaced, which will increase the cost and management chaos.

In traditional ring spinning machine spinning, one roving is spun into one spun yarn. Cable spinning is to divide a fed roving into two or more fiber bundles, and each fiber bundle is spun Under the action of the yarn force, it rotates and twists around its own axis, and then all the divided fiber bundles with a certain twist converge together, and then twist around the axis of the yarn to form a strand of yarn. As disclosed in the Chinese patent document CN101736470A, the cable-type spinning method of sulfonamide fibers, and in the cable-type spinning device of the ring spinning frame disclosed in the Chinese patent document CN101392421A, the strands are combed through the carding roller after passing through the front roller rubber roller. Then it is twisted into yarn, and the cable spinning needs to install a split roller and a series of pressing devices between the front roller rubber roller and the front roller shaft, thereby increasing the number of parts, increasing the difficulty of operation and cost.

According to the known technology, installing a collector between the front roller and the lower pin can significantly change the yarn quality and reduce hairiness, such as the composite pressure rod collector disclosed in Chinese patent document CN205398820U, which includes a pressure rod and two door-shaped collectors , the middle part of the pressure rod is pierced with a spacer, the door-shaped collector includes a door beam and a forward folding arm connected to both ends of the door beam, and the front ends of the two forward folding arms have knuckles In contrast, an axial through hole is opened in the door beam, and the diameter of the through hole is slightly larger than the diameter of the pressure rod; the gate collector is connected to the pressure rod from the end of the pressure rod , and keep the opposite direction from the distance block. But it needs to increase the collector separately, and the structure of the collector is also very complicated. If the accumulation groove is added, the entire lower pin needs to be replaced.

Contents of the invention

In order to solve the above-mentioned shortcomings of the prior art, the present invention provides a lower spinning component of the fiber strand conveying mechanism of the ring spinning frame, which can adapt to various spinning needs.

The technical solution adopted by the present invention to solve the above-mentioned deficiencies of the prior art is:

The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame, which includes a lower support and a lower spinning block, the lower spinning block is detachably connected to the lower support, and the upper arc surface of the lower spinning block supports the yarn The upper arc surface formed by the upper arc surface of the thread or the lower spinning block and the lower support member supports the yarn.

More preferably, the upper arc surface of the lower spinning block is fixed on a part of the notch of the lower support member.

More preferably, the upper arc surface of the lower spinning block is changed, and through the different arc surfaces of the spinning block, the matching between the upper pin cover plate and the arc surface of the lower spinning assembly is different, so as to adapt to different spinning raw materials and yarns. The spinning conditions are different in thickness, so that it is convenient to replace a variety of spinning blocks and suitable for a variety of spinning conditions.

Preferably, a collection groove is provided at the front of the lower spinning block, so that the lower spinning block has the function of a collector, and the fiber strands can be assembled in the collection groove of the lower spinning block, thereby simplifying the structure and improving the yarn quality. quality.

More preferably, a carding groove is arranged at the front end of the lower spinning block, so that the fiber strands can be suitable for different types of spinning.

More specifically, three parallel carding slots are arranged at the front end of the lower spinning block, so that the fiber strands pass through the lower spinning block to adapt to the cable-type spinning, and the cable-type spinning yarn can be spun.

More specifically, two parallel carding slots are arranged at the front end of the lower spinning block, so that the fiber strands pass through the lower spinning block to adapt to the Siro spinning, and the double-ply yarn with the Siro spinning effect is spun out.

More preferably, the upper arc surface of the lower spinning block is fixed on all the gaps of the lower support member.

Compared with the prior art, the present invention has the advantages of:

1. By changing the arc surface of the spinning block, the gap and the curve formed by the strands passing through the gap are changed, so as to facilitate the conversion of the working arc surface of the lower spinning component and optimize the spinning evenness index.

2. A collection groove is set on the spinning block to improve the yarn hairiness index.

3. Set up carding slots on the spinning blocks to meet the requirements of Siro spinning and cable spinning.

Description of drawings

Fig. 1 is a schematic diagram of the roving sliver being drafted into yarn by the fiber sliver conveying mechanism of the existing ring spinning frame.

Fig. 2 is an exploded view of the lower spinning assembly and the upper pin cover assembly in Embodiment 1 of the present invention.

Fig. 3 is an exploded view of the lower spinning assembly in Example 1 of the present invention.

Fig. 4 is a schematic structural view of the spinning block and the upper pin cover in Example 2 of the present invention.

Fig. 5 is a schematic diagram of the structure of the spinning block and the upper pin cover in Example 3 of the present invention.

Fig. 6 is a schematic structural view of a spinning block in Example 4 of the present invention.

Fig. 7 is a schematic diagram of cooperation between the spinning block and the yarn during spinning in Example 4 of the present invention.

Fig. 8 is a schematic structural view of the spinning block in Example 5 of the present invention.

Fig. 9 is a schematic diagram of cooperation between spinning blocks and yarns during spinning in Example 5 of the present invention.

Fig. 10 is a schematic structural view of a spinning block in Example 6 of the present invention.

Fig. 11 is a schematic structural view of a spinning block in Example 7 of the present invention.

Fig. 12 is a schematic diagram of cooperation between the spinning block and the yarn during spinning in Example 7 of the present invention.

detailed description

The present invention will be further described below in conjunction with accompanying drawings and embodiments.

As shown in Figures 1 and 2, the fiber strand conveying mechanism of the ring spinning frame includes a roller pier 31, a cradle 9 hinged on the roller pier through a cradle holding tube 33, and the roller pier 31 is along the direction of wire outlet. The rear roller shaft 32, the middle roller shaft 3, and the front roller shaft 1 are movable in sequence, and the back roller rubber roller 35, the middle roller rubber roller 4, and the front roller rubber roller 30 are movable in sequence on the cradle 9 along the outgoing line direction. The lower pin 2 is arranged on the roller pier between the middle roller shaft 3 and the front roller shaft 1, the upper surface middle of the lower pin 2 is provided with an arc surface, and the upper pin cover plate assembly is arranged above it, and the upper pin cover plate assembly includes and the lower pin 52 The upper pin cover plate 6, the endless conveyor belt 7, the cover plate support member 13, the tension spring 8, the tension block 5 of the arc surface of the concave-convex matching arc surface, and the endless conveyor belt 7 is enclosed within the upper pin cover plate 6 and the middle On the outer surface of the roller rubber roller 4, the cover plate is tightened by the tension spring 8, and the upper pin cover plate assembly is connected on the cradle 9.

The arc surface of the upper pin cover plate 6 and the arc surface of the lower pin 2 can be separated by a spacer to form a stable fit gap, and the whiskers are always conveyed forward in this gap, and the whiskers are always on the arc surface of the lower pin 2 sliding friction.

Example 1

As shown in Figures 2 and 3, the improvement of the present invention lies in the lower pin 2, the lower pin 2 is changed to the lower spinning assembly, the lower spinning assembly includes the lower pin 52 and the spinning block 57, and the spinning block 57 is detachable Ground is connected on the lower pin 52. In the present embodiment 1, a gap 521 for placing the spinning block 57 is opened on the lower pin 52. The spinning block 57 is provided with a round hole 578, and the spinning block 57 is fixed to the On the product 521 of the lower pin 52, at this time, an arc-shaped surface is arranged in the middle part of the upper surface of the assembly of the lower pin 52 and the spinning block 57, and the arc-shaped surface cooperates with the upper pin cover plate assembly arranged above.

The above-mentioned lower pin 52 and the spinning block 57 can also have various variations of cooperation, and various embodiments will be described in detail below.

Example 2

As shown in Fig. 4, the arc surface R4 at the front end of the spinning block 571 is flat, and the arc R4 is close to the entrance of the sliver, which is suitable for spinning yarns with long average fiber length, and has a good index of smooth drafting.

Example 3

As shown in Figure 5, the curvature of the R2.6 arc at the front end of the spinning block 572 is larger, and the R2.6 arc is farther away from the entrance of the sliver than the spinning block 57A, which is suitable for spinning yarns with short average length of fibers and good spinning evenness .

Example 4

As shown in Figures 6 and 7, a collection groove 5731 is provided at the front of the spinning block 573, and a groove 5732 is provided at the front end, which is suitable for spinning branch yarns that require a collector, and the width of the collection groove 5731 and groove 5732 can also be changed to be suitable for fine counts. Yarn, medium and thick yarn and other yarn needs.

Example 5

As shown in Figures 8 and 9, two carding grooves 5761 are arranged side by side at the front end of the spinning block 576, and the spun yarn has a double-ply yarn with the effect of siro spinning.

Example 6

As shown in Figure 10, three carding slots 5771 arranged side by side at the front end of the spinning block 577 can spin out cable-shaped spinning yarns.

Example 7

As shown in Figures 11 and 12, a notch 5281 is processed on the original lower pin 2 to become a notched lower pin 528. The spinning block 578 has a complete Y-shaped arc surface 5781 on the upper part, and a buckle 5782 on the lower part. Buckle on the notch 5281 of the lower pin 528, so that the spinning block 578 can be easily replaced.

Claims

The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame is characterized in that it includes a lower support and a lower spinning block, the lower spinning block is detachably connected to the lower support, and the upper of the lower spinning block The arcuate supporting yarn or the upper arcuate supporting yarn formed by the upper arcuate of the lower spinning block and the lower supporting member.
The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame according to claim 1, characterized in that: the upper arc surface of the lower spinning block is fixed on a part of the notch of the lower support member.
The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame according to claim 1, wherein the upper arc surfaces of the lower spinning blocks are different.
The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame according to claim 1, characterized in that: the front part of the lower spinning block is provided with a collection groove.
The lower spinning assembly of the fiber sliver delivery mechanism of the ring spinning frame according to claim 1, wherein parallel carding grooves are arranged at the front end of the lower spinning block.
The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame according to claim 5, characterized in that: the front end of the lower spinning block is provided with three parallel carding grooves.
The lower spinning assembly of the fiber sliver delivery mechanism of the ring spinning frame according to claim 5, wherein two parallel carding grooves are arranged at the front end of the lower spinning block.
The lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame according to claim 1, wherein the upper arc surface of the lower spinning block is fixed on all gaps of the lower supporting member.