Cotton sliver forming frame
The sliver forming frame addresses unequal tension distribution by using a raised boss and roller assembly to uniformly stretch cotton yarns, enhancing sliver quality through reduced axial tension differences.
Patent Information
- Application Number
- CN202420260493.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The current spinning process results in significant differences in axial tension distribution during sliver formation due to unequal tensile forces on cotton yarns near and far from the center line, affecting the quality of subsequent molding.
A sliver forming frame with a raised boss and roller assembly that increases the stroke of cotton yarns near the center, reducing the difference in stroke and tension between yarns near and far from the center, using rollers with detachable main and auxiliary bodies to enhance friction and uniform traction.
The solution achieves more uniform traction forces on cotton yarns, improving the quality of sliver formation by reducing axial tension differences and enabling more accurate traction parameters for subsequent processes.
Smart Images
Figure CN222226689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spinning, in particular to a cotton strip forming frame. Background Art
[0002] In the current spinning process, after the cotton yarn is processed by the carding machine, it is transmitted from the output end of the carding machine in a flat manner. The flat cotton yarn passes through one end of the through hole and is pulled out from the other end of the through hole by traction. When passing through, the flat cotton yarn gathers into strips in the through hole, and the coarse sand is initially formed. The through hole position is usually set on the center line of the cotton yarn, so the distance from the cotton yarn near the center line to the through hole is shorter, and the distance from the cotton yarn far from the center line to the through hole is longer. When converging under the action of traction, the cotton yarn far from the center line is subjected to relatively large tensile force, and the cotton yarn near the center line is subjected to relatively small tensile force, resulting in large differences in the internal axial tension distribution after strip formation, affecting the subsequent molding quality. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a sliver forming frame, which is beneficial to reducing the axial tension difference during sliver forming and improving the sliver forming quality.
[0004] In order to achieve the above object, the technical solution of the utility model is:
[0005] A sliver forming frame comprises a bracket, cotton yarn is transmitted on the upper end of the bracket, a boss is arranged on the upper end of the bracket, cotton yarn near the center is input from one side of the boss, the cotton yarn is transported along the upper surface of the boss, and the cotton yarn is output from the other side of the boss, the top position of the boss gradually rises when the boss approaches the center along both sides of the cotton yarn transmission direction, and the top position of the boss gradually rises when the boss approaches the center along both sides perpendicular to the cotton yarn transmission direction.
[0006] A roller assembly is arranged on the upper end of the boss, and the roller assembly includes a roller. The roller can rotate along its own axis, and the roller axis is perpendicular to the cotton yarn transmission direction. The bottom of the roller can abut against the upper end of the cotton yarn transmitted along the boss, and can drive the roller to rotate when the cotton yarn is transmitted.
[0007] The rollers are distributed on both sides of the boss along the cotton yarn transmission direction and at the highest position in the middle of the boss.
[0008] The roller comprises a main roller body and an auxiliary roller body, and the main roller body and the auxiliary roller body can be detachably spliced to form the roller.
[0009] One end face of the main roller body is fitted with one end face of the auxiliary roller body. The fitting surface of the main roller body is provided with a wavy groove, and the fitting surface of the auxiliary roller body is provided with a corresponding wavy protrusion. The protrusion of the auxiliary roller body is inserted into the groove of the main roller body.
[0010] The main roller body is provided with a concave body, the auxiliary roller body is provided with a convex body, and the convex body is inserted into the concave body.
[0011] The bracket is provided with a convergence hole, and the cotton yarn passes through the convergence hole, and the convergence hole is located at the side where the cotton yarn is transmitted away from the boss.
[0012] Support plates are installed on both sides of the bracket, and the boss is located between the support plates on both sides.
[0013] The roller assembly also includes a central shaft, and two ends of the central shaft are respectively inserted into two side support plates.
[0014] The beneficial effects of the utility model are:
[0015] By setting a raised boss, the stroke of the cotton yarn near the center is increased during the process from being output from the carding machine to entering the converging hole to form strips, and the closer the cotton yarn is to the center, the greater the increase in stroke is, so that the difference in stroke between the cotton yarn near the center and the cotton yarn far from the center before entering the converging hole is reduced, so that when the cotton yarn is pulled out of the converging hole after passing through the converging hole, the traction force on the cotton yarn near the center and the cotton yarn far from the center has a more uniform stretching effect, so that the difference in axial tension of each axial part of the cotton yarn is relatively small after forming strips, which is beneficial to configure more accurate traction force parameters when the subsequent process continues to pull and stretch the cotton yarn, and is beneficial to improving the cotton yarn forming quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic top view of an embodiment;
[0017] Figure 2 for Figure 1 Sectional view along the MM direction;
[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0019] Figure 4 for Figure 1 Sectional view along the NN axis;
[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle.
[0021] In the figure: carding machine 1, cotton yarn 2, bracket 3, convergence hole 31, support plate 4, roller assembly 5, central shaft 51, roller 52, main roller body 521, concave body 5211, auxiliary roller body 522, convex body 5221, boss 6. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further described below through embodiments and in conjunction with the accompanying drawings.
[0023] like Figure 1 , Figure 2 As shown, a sliver forming frame includes a bracket 3, and the upper end of the bracket 3 is provided with cotton yarn 2. Figure 1 In the position shown, the cotton yarn 2 is sent out from the carding machine 1 and transmitted downward, the cotton yarn 2 enters the bracket 3 in a flat manner, and the cotton yarn 2 is transported flat along the table surface of the bracket 3.
[0024] like Figure 1 , Figure 2 As shown, the upper end of the bracket 3 is provided with a boss 6, which extends upward along the upper end surface of the bracket 3 to form a bulge. The bracket 3 is provided with a convergence hole 31, which is located on the side of the boss 6 away from the carding machine 1. The convergence hole 31 passes downward along the transmission surface of the bracket 3 along the cotton yarn 2. The convergence hole 31 is pulled out along the convergence hole 31 by traction. After the cotton yarn 2 passes through the convergence hole 31, it changes from a flat state to a strip state. Before the cotton yarn 2 passes through the convergence hole 31, it forms a Figure 1 The triangular area Z is shown by the dotted line.
[0025] like Figure 1 As shown, the cotton yarn 2 near the center (i.e., the center line L1) is input from one side of the boss 6, combined with Figure 2 The cotton yarn 2 is transported along the upper surface of the boss 6 , and the cotton yarn 2 is output from the other side of the boss 6 , and finally passes into the converging hole 31 .
[0026] like Figure 2 As shown, the arrow direction is the transmission direction of the cotton yarn 2, and the top position of the boss 6 gradually rises and forms an arc surface when the boss 6 approaches the center along both sides of the transmission direction of the cotton yarn 2. Figure 1 , Figure 4 As shown, the boss 6 gradually rises toward the center position along both sides perpendicular to the transmission direction of the cotton yarn 2.
[0027] By providing the raised boss 6, the stroke of the cotton yarn 2 near the center (i.e., the center line L1) is increased during the process of being output from the carding machine 1 to entering the converging hole 31 to form strips, and the closer the cotton yarn 2 is to the center, the greater the increase, so that the stroke difference between the cotton yarn 2 near the center and the cotton yarn 2 far from the center before entering the converging hole 31 is reduced, so that when the cotton yarn 2 passes through the converging hole 31 and is pulled out of the converging hole 31, the traction force on the cotton yarn 2 near the center and the cotton yarn 2 far from the center is more evenly stretched, so that the axial tension difference between the axial parts of the cotton yarn 2 after forming strips is relatively small, which is beneficial for configuring more accurate traction force parameters when the subsequent process continues to pull and stretch the cotton yarn 2, and is beneficial for improving the molding quality of the cotton yarn 2.
[0028] like Figure 1As shown, support plates 4 are arranged on both sides of the bracket 3, a boss 6 is located between the support plates 4 on both sides, a roller assembly 5 is arranged on the upper end of the boss 6, and the roller assembly 5 includes a central axis 51, and both ends of the central axis 51 are inserted into the support plates 4 on both sides. Rollers 52 are provided in the clearance of the outer peripheral wall of the central axis 51, and the central axis 51 is inserted into the rollers 52, and the rollers 52 can rotate along their own axes.
[0029] like Figure 1 As shown, the axis of the roller 52 is arranged perpendicular to the transmission direction of the cotton yarn 2, and the bottom of the roller 52 can abut against the upper end of the cotton yarn 2 transmitted along the boss 6, and the cotton yarn 2 can drive the roller 52 to rotate when being transmitted.
[0030] Specifically, if Figure 1 , Figure 2 As shown, there are three roller assemblies 5, and the corresponding rollers 52 are respectively distributed at the bottom positions on both sides of the boss 6 along the transmission direction of the cotton yarn 2 and the highest position in the middle of the boss 6. Figure 3 , Figure 5 As shown, the bottom of the roller 52 presses the upper end of the cotton yarn 2. When the cotton yarn 2 is transmitted, the roller 52 is driven to rotate by friction. The roller 52 forms resistance to the transmission of the cotton yarn 2, so that the tensile tension of the cotton yarn 2 located at the boss 6 section is increased during transmission, thereby further reducing the difference in traction tension between the cotton yarn 2 near the center and the cotton yarn 2 far from the center.
[0031] To facilitate the placement of the cotton yarn 2 between the roller 52 and the boss 6, Figure 3 As shown, the roller 52 includes a main roller body 521 and a secondary roller body 522, and the main roller body 521 and the secondary roller body 522 are detachably spliced to form the roller 52. The central shaft 51 is inserted into the main roller body 521, and one end face of the main roller body 521 is fitted with one end face of the secondary roller body 522. The fitting surface of the main roller body 521 is provided with a wave-shaped groove, and the fitting surface of the secondary roller body 522 is provided with a corresponding wave-shaped protrusion. The protrusion of the secondary roller body 522 is inserted into the groove of the main roller body 521, thereby increasing the friction resistance between the main roller body 521 and the secondary roller body 522, and limiting the secondary roller body 522 from sliding out of the main roller body 521 along the axial direction.
[0032] like Figure 3 As shown, the main roller body 521 is provided with a concave body 5211 at the contact surface with the auxiliary roller body 522, and the concave body 5211 is recessed and extended to the side away from the auxiliary roller body 522 to form an inverted T-shaped groove, and the auxiliary roller body 522 is provided with a convex body 5221, and the convex body 5221 extends to the side close to the main roller body 521 to form an inverted T-shaped protrusion, and the convex body 5221 is inserted into the concave body 5211 along the axis. When installing the cotton yarn 2, the auxiliary roller body 522 is removed, so that the roller 52 forms a gap at the installation of the auxiliary roller body 522, and the gap is rotated to the position close to the boss 6, so that the cotton yarn 2 can be easily inserted between the boss 6 and the roller 52.
[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 sliver forming frame, characterized in that: The invention comprises a bracket (3), the upper end of which is transported cotton yarn (2), the upper end of which is provided with a boss (6), the cotton yarn (2) near the center is input from one side of the boss (6), the cotton yarn (2) is transported along the upper surface of the boss (6), and the cotton yarn (2) is output from the other side of the boss (6), the top position of the boss (6) gradually rises when the boss (6) approaches the center along both sides of the transmission direction of the cotton yarn (2), and the top position of the boss (6) gradually rises when the boss (6) approaches the center along both sides perpendicular to the transmission direction of the cotton yarn (2).
2. A sliver forming frame according to claim 1, characterized in that: A roller assembly (5) is arranged at the upper end of the boss (6), and the roller assembly (5) comprises a roller (52). The roller (52) can rotate along its own axis, and the axis of the roller (52) is perpendicular to the transmission direction of the cotton yarn (2). The bottom of the roller (52) can abut against the upper end of the cotton yarn (2) transmitted along the boss (6), and the cotton yarn (2) can drive the roller (52) to rotate when being transmitted.
3. A sliver forming frame according to claim 2, characterized in that: The rollers (52) are distributed on both sides of the boss (6) along the transmission direction of the cotton yarn (2) and at the highest position in the middle of the boss (6).
4. A sliver forming frame according to claim 2, characterized in that: The roller (52) comprises a main roller body (521) and a secondary roller body (522); the main roller body (521) and the secondary roller body (522) are detachably spliced to form the roller (52).
5. A sliver forming frame according to claim 4, characterized in that: One end surface of the main roller body (521) is fitted with one end surface of the auxiliary roller body (522); the fitting surface of the main roller body (521) is provided with a wave-shaped groove, and the fitting surface of the auxiliary roller body (522) is provided with a corresponding wave-shaped protrusion; the protrusion of the auxiliary roller body (522) is inserted into the groove of the main roller body (521).
6. A sliver forming frame according to claim 4, characterized in that: The main roller body (521) is provided with a concave body (5211), and the auxiliary roller body (522) is provided with a convex body (5221), and the convex body (5221) is inserted into the concave body (5211).
7. A sliver forming frame according to claim 1, characterized in that: The bracket (3) is provided with a convergence hole (31), the cotton yarn (2) passes through the convergence hole (31), and the convergence hole (31) is located on the side where the cotton yarn (2) is transmitted away from the boss (6).
8. A sliver forming frame according to claim 2, characterized in that: Support plates (4) are installed on both sides of the bracket (3), and the boss (6) is located between the support plates (4) on both sides.
9. A sliver forming frame according to claim 8, characterized in that: The roller assembly (5) further comprises a central axis (51), and two ends of the central axis (51) are respectively inserted into the support plates (4) on both sides.