An oversized diameter adjusting device for the front apron position of a ring spinning frame

Abstract

The present application discloses a large-diameter adjusting device for the front apron position of a spinning frame. When there is a slight "arching" phenomenon at the contact position between the upper apron and the lower apron due to force on the apron, the pulling force of the apron on the adjusting roller towards the nip direction increases, and the contact force between the resistance inner sleeve inside the adjusting roller and the central rod is strengthened, resulting in an increase in friction force, thereby increasing the friction force between the adjusting roller and the apron. The frictional resistance here is opposite to the frictional resistance of the apron at the nip, pulling the apron to eliminate the slight "arching". When there is a severe "arching" phenomenon on the apron, the arched part of the upper apron will lift the force-bearing plate, driving the transmission plate to join the connecting electric piece and the electric patch piece, enabling the electromagnet to be energized to obtain magnetic force, which repels the repulsive magnet, causing the long rod to drive the central rod to push the adjusting roller to move away from the storage seat, pulling the apron through the moving adjusting roller, adjusting the tension of the apron, and making the "arched" apron flatten under the pulling force.

Description

Technical Field

[0001] This application relates to the field of textile technology, and particularly to an ultra-large diameter adjusting device for the front apron position of a spinning frame. Background Art

[0002] A spinning frame is a spinning machine that draws, twists, and winds semi-finished roving or sliver into fine yarn tube yarns during the textile process. The roving is fed into the drafting mechanism through the drafting mechanism for drafting operations.

[0003] During this process, referring to the attached drawings of the specification Figure 1 , an upper apron Ⅰ 6' and a lower apron Ⅰ 5' are arranged between the front and middle rollers. The purpose is to control the fibers in the drafting zone (the contact part of the upper and lower aprons). The apron is a flexible element that 'controls' the fibers in the drafting zone and conveys them forward at the speed of the rear roller until it approaches the front roller nip (the nip formed near the upper pin Ⅰ 2' and the lower pin Ⅰ 1'), allowing the fiber heads to enter the front roller nip ( Figure 1 ). Ideally, it is required that the flexible element has a uniform vertical pressure on the fibers and can have a good control effect on all fibers. Therefore, the upper and lower aprons should be in 'close contact'. This is the basic requirement of the apron mechanism. However, the two aprons are driven by the friction of the middle roller Ⅰ 3'. The pressure between the middle roller Ⅰ 3' and the upper pressure roller Ⅰ 4' holds the two layers of aprons and conveys them forward (the force on the apron is forward), while in the front, there is also pressure between the upper and lower pins, resulting in frictional resistance (the force on the apron is backward). These two forces force the flexible apron in the middle to relax or even 'arch' ( Figure 2 ). If no measures are taken, the pressure generated on the working surface is uneven and unstable, and it is impossible to generate a uniform pressure on the fibers to effectively control the fibers. Summary of the Invention

[0004] This application proposes an ultra-large diameter adjusting device for the front apron position of a spinning frame, which has the advantages of increasing frictional resistance to eliminate slight arching, providing power to the arched part to energize the electromagnet to obtain a repulsive force, pushing the adjusting roller to move under the repulsive force to tension the apron and eliminate arching, increasing its own frictional force when the adjusting roller tensions the apron to transfer the arch above the apron, and slowly resetting the adjusting roller to remove the excessive long-term tension on the apron, so as to solve the problem of arching of the existing apron mechanism.

[0005] To achieve the above object, the present application adopts the following technical solutions: A large-diameter adjusting device for the front apron position of a spinning frame, including a frame, a lower roller, a middle roller, an upper pressure roller, a lower pin and an upper pin. The lower pin is located above the lower roller, the upper pin is located above the lower pin, the middle roller is located on one side of the lower pin, and the upper pressure roller is located above the middle roller. A placement seat is respectively arranged between the upper pin and the upper pressure roller and between the lower pin and the middle roller. Two symmetrical moving cavities are opened in the placement seat. A long rod is arranged in the moving cavity. One end of the long rod movably penetrates through the placement seat to set a central rod. A resistance inner sleeve is arranged on the outer side of the central rod for changing the frictional resistance between the central rod under different stress states. An adjusting roller is arranged on the outer side of the resistance inner sleeve. An upper apron is sleeved on the upper pin, the upper pressure roller and the upper adjusting roller above. A lower apron is sleeved on the lower pin, the lower roller, the middle roller and the lower adjusting roller below.

[0006] Preferably, both ends of the lower roller, the middle roller and the upper pressure roller are respectively movably arranged on both sides of the frame, and both ends of the lower pin and the upper pin are respectively fixed on both sides of the frame.

[0007] Preferably, a repulsive magnet is arranged at one end of the long rod close to the upper pin. A return spring wound around the outer side of the long rod is arranged between the repulsive magnet and one end of the moving cavity away from the upper pin for stress adjustment of the position of the adjusting roller.

[0008] Preferably, evenly distributed hoisting ropes are arranged at the bottom end of the upper placement seat. The bottom ends of the hoisting ropes are connected with a stress plate, and the stress plate is located above the inner side of the upper apron below for receiving the upward force of the upper apron.

[0009] Preferably, a current seat is fixedly connected to the center of the bottom end of the upper placement seat. A closed groove is opened at the bottom end of the current seat. Symmetrical electric patches are fixedly connected to both sides of the bottom of the closed groove. A connecting wire is arranged in the current seat for current transmission.

[0010] Preferably, a transmission plate is fixedly connected to the top end of the stress plate. A connecting electric piece is fixedly connected to the top end of the transmission plate for synchronously moving with the stress plate. The top of the transmission plate is inserted into the closed groove. The thickness value of the connecting electric piece is equal to the distance value between the two electric patches for connecting or disconnecting the current.

[0011] Preferably, an electromagnet is arranged at one end of the moving cavity away from the repulsive magnet. The electromagnet and the repulsive magnet repel each other. The electromagnet and the electric patch are electrically connected through the connecting wire. The electric patch is electrically connected to the existing circuit for driving the adjusting roller to perform a linear motion.

[0012] An oversized diameter adjustment device for the front apron position of a flyer frame. When the aprons start, a force towards the nip direction will be exerted on the adjusting roller, and there is a frictional resistance between the adjusting roller and the aprons. When the aprons show a slight "arching" phenomenon at the contact position between the upper apron and the lower apron due to force problems, the pulling force of the aprons on the adjusting roller towards the nip direction will increase, strengthening the contact force between the resistance inner sleeve inside the adjusting roller and the central rod, resulting in an increase in friction force, thereby increasing the frictional force between the adjusting roller and the aprons. The frictional resistance here is in the opposite direction to the frictional resistance of the nip on the aprons, thus pulling the aprons to eliminate the slight "arching".

[0013] Meanwhile, when the aprons show a severe "arching" phenomenon at the contact position between the upper apron and the lower apron due to force problems, the arched part of the upper apron will push up the force-receiving plate, driving the transmission plate to engage the connecting electric piece with the electric patch piece, making the electromagnet energized to obtain magnetic force, repelling the repulsive magnet, causing the long rod to drive the central rod to push the adjusting roller to move away from the placement seat, pulling the aprons through the moving adjusting roller, adjusting the tension of the aprons, and making the "arched" aprons flatten under the pull.

[0014] Meanwhile, when the adjustment is completed, the force-receiving plate will lose the upward thrust of the lower apron, causing the force-receiving plate to drive the transmission plate to pull the connecting electric piece to move downward and reset under its own weight, disconnecting the electric patch piece and the connecting electric piece, making the electromagnet de-energized and gradually losing the repulsive force, and under the drive of the reset spring, the adjusting roller slowly moves back towards the placement seat, thereby gradually restoring the aprons and reducing the tension, avoiding the negative effects such as rapid deformation, reduced lifespan, and slipping of the aprons caused by the adjusting roller adjusting the tension of the aprons too tightly for a long time.

[0015] Meanwhile, when the adjusting roller moves to adjust the tension of the severely "arched" aprons, the force exerted by the aprons on the adjusting roller towards the nip direction increases, strengthening the contact force between the resistance inner sleeve inside the adjusting roller and the central rod, and the force exerted by the central rod on the resistance inner sleeve is in the opposite direction to the force exerted by the aprons on the adjusting roller, resulting in a further strengthening of the contact force between the resistance inner sleeve and the central rod and an increase in the friction force, thereby further increasing the frictional force between the adjusting roller and the aprons. The frictional resistance here is in the opposite direction to the frictional resistance of the nip on the aprons, thus pulling the aprons to quickly eliminate the severely "arched" part of the aprons.

[0016] Meanwhile, during the process of the rapid increase in the frictional force between the adjusting roller and the aprons, the self-rotation ability of the adjusting roller weakens. Taking the clockwise rotation of the upper apron as an example, at this time, there is a high-intensity frictional resistance in the opposite direction between the adjusting roller and the clockwise rotating upper apron, and the upper pressure roller provides a clockwise traction force for the upper apron, opposite to the frictional resistance provided by the adjusting roller, resulting in an "arching" phenomenon of the upper apron between the upper pressure roller and the adjusting roller, thus transferring the "arching" below the upper apron to above and quickly eliminating the "arching" phenomenon below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application.

[0018] With reference to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0019] Figure 1 It is a schematic diagram of the rotation state of the apron under ideal conditions;

[0020] Figure 2 It is a schematic diagram of the rotation state of the apron under actual conditions;

[0021] Figure 3 It is a schematic three-dimensional structure diagram of the present invention;

[0022] Figure 4 It is a schematic diagram of the frame structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure distribution of the present invention;

[0024] Figure 6 It is a schematic diagram of the structural position of the current seat of the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the storage seat of the present invention;

[0026] Figure 8 It is a schematic diagram of the current seat structure of the present invention;

[0027] Figure 9 It is a schematic diagram of the internal structure of the current seat of the present invention.

[0028] Wherein: 1. Frame; 2. Lower roller; 3. Middle roller; 4. Upper pressure roller; 5. Lower pin; 6. Upper pin; 7. Lower apron; 8. Upper apron; 9. Storage seat; 10. Activity cavity; 11. Electromagnet; 12. Long rod; 13. Repulsion magnet; 14. Return spring; 15. Central rod; 16. Adjusting roller; 17. Resistance inner sleeve; 18. Current seat; 19. Closing groove; 20. Electric patch; 21. Connecting wire; 22. Transmission plate; 23. Connecting electric piece; 24. Hoisting pull rope; 25. Stress plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application. Example 1

[0030] Please refer to Figures 3 to 4 , a large-diameter adjusting device for the front apron position of a flyer frame, including a frame 1, a lower roller 2, a middle roller 3, an upper pressure roller 4, a lower pin 5 and an upper pin 6. Both ends of the lower roller 2, the middle roller 3 and the upper pressure roller 4 are movably sleeved on both sides of the frame 1. Both ends of the lower pin 5 and the upper pin 6 are fixed to both sides of the frame 1 by bolts, and the positions of the lower roller 2, the middle roller 3, the upper pressure roller 4, the lower pin 5 and the upper pin 6 are fixed by the frame 1.

[0031] Refer to Figure 3 , Figures 5 to 6 , the lower pin 5 is located above the lower roller 2, the upper pin 6 is located above the lower pin 5, the middle roller 3 is located on one side of the lower pin 5, the upper pressure roller 4 is located above the middle roller 3. The lower roller 2, the middle roller 3 and the upper pressure roller 4 are controlled to rotate by an existing transmission device, such as a stepping motor and a transmission, etc. The staggered positions of the lower pin 5 and the upper pin 6 form a nip.

[0032] Refer to Figure 3 , Figures 5 to 7 , a placement seat 9 is respectively arranged between the upper pin 6 and the upper pressure roller 4 and between the lower pin 5 and the middle roller 3. The placement seat 9 is formed by fixing two symmetric upper and lower parts by bolts, so that the placement seat 9 can be disassembled, which is convenient for the installation and disassembly of the electromagnet 11 and the long rod 12. Both sides of the placement seat 9 are fixedly connected to both sides of the frame 1 by bolts. Two symmetric movable cavities 10 are opened in the placement seat 9. A long rod 12 is movably sleeved in the movable cavity 10. One end of the long rod 12 close to the upper pin 6 is fixedly connected with a repulsive magnet 13. A return spring 14 is fixedly connected between the repulsive magnet 13 and the end of the movable cavity 10 far from the upper pin 6. The return spring 14 is movably sleeved on the outside of the part of the long rod 12 located inside the movable cavity 10, so that the long rod 12 can perform reciprocating linear motion in the movable cavity 10. When the apron 8 and the lower apron 7 are installed, the apron 8 and the lower apron 7 will respectively contact different adjusting rollers 16 above and below. The apron (the apron 8 and the lower apron 7) has a pulling force on the adjusting roller 16 in the direction of the placement seat 9, so that the adjusting roller 16 drives the long rod 12 to move towards the placement seat 9 through the central rod 15, stretching the return spring 14. When the apron starts (taking Figure 6 as an example, the counterclockwise rotating middle roller 3 drives the lower apron 7 to rotate counterclockwise towards the nip direction, the clockwise rotating upper pressure roller 4 drives the apron 8 to rotate clockwise towards the nip position, and at the same time, the friction force between the lower apron 7 and the apron 8 will also drive the apron to rotate synchronously towards the nip position), the loose apron will be tightened, and there will be a greater pulling force on the adjusting roller 16 in the direction of the placement seat 9, so that the long rod 12 moves towards the placement seat 9 to the maximum limit. At this time, the return spring 14 stretches to limit the position of the long rod 12.

[0033] Refer to Figure 3 , Figures 5 to 7 , one end of the long rod 12 movably penetrates through one end of the storage seat 9 away from the upper pin 6. One end of the two long rods 12 protruding from the storage seat 9 is fixedly connected with a central rod 15. A resistance inner sleeve 17 is movably sleeved on the outer side of the central rod 15. An adjusting roller 16 is fixedly sleeved on the outer side of the resistance inner sleeve 17. An upper leather belt 8 is movably sleeved on the upper pin 6, the upper pressing roller 4 and the upper adjusting roller 16 above. A lower leather belt 7 is movably sleeved on the lower pin 5, the lower roller 2, the middle roller 3 and the lower adjusting roller 16 below. When the leather belts are started, a force towards the nip direction will be applied to the adjusting roller 16, and the adjusting roller 16 has a frictional resistance to the leather belts. When the leather belts have a slight "arching" phenomenon at the contact position of the upper leather belt 8 and the lower leather belt 7 due to force problems, the pulling force of the leather belts on the adjusting roller 16 towards the nip direction will increase, so that the contact force between the resistance inner sleeve 17 inside the adjusting roller 16 and the central rod 15 is strengthened, resulting in an increase in friction, thereby increasing the friction between the adjusting roller 16 and the leather belts. The frictional resistance here is opposite to the frictional resistance of the nip on the leather belts, so as to pull the leather belts and eliminate the slight "arching".

[0034] The material of the resistance inner sleeve 17 can be TPU, rubber or elastic plastic, etc. The two ends of the adjusting roller 16 are respectively abutted against the two long rods 12 on both sides, so that the two long rods 12 on both sides limit the position of the adjusting roller 16, so that the adjusting roller 16 cannot displace in the axial direction of the central rod. Embodiment 2

[0035] Please refer to Figure 3 , Figures 5 to 7 , on the basis of Embodiment 1, evenly distributed hoisting ropes 24 are fixedly connected to the bottom end of the upper storage seat 9. The bottom ends of the hoisting ropes 24 are fixedly connected with a force-bearing plate 25. The force-bearing plate 25 is located above the inner side of the lower part of the upper leather belt 8, so that the force-bearing plate 25 is suspended above the inner side of the lower part of the upper leather belt 8 and does not directly contact the upper leather belt 8, avoiding the further increase in the frictional force on the upper leather belt 8 caused by the contact. Only when the upper leather belt 8 has a strong "arching" phenomenon here, the "arching" part of the upper leather belt 8 will push up the force-bearing plate 25. The top end of the force-bearing plate 25 is fixedly connected with a transmission plate 22, and the top end of the transmission plate 22 is fixedly connected with a connecting electric sheet 23. When the force-bearing plate 25 moves upward due to the upward push of the "arching" tail, or when the force-bearing plate 25 falls under its own weight after losing the upward lifting force of the "arching" part, it will drive the connecting electric sheet 23 to move synchronously through the transmission plate 22.

[0036] Refer to Figure 6 , Figures 8 to 9, at the center of the bottom end of the upper storage seat 9, there is a fixed connection with a current seat 18. At the bottom end of the current seat 18, a closed groove 19 is opened. On both sides of the bottom of the closed groove 19, there are symmetrically fixed electric patches 20. The top of the transmission plate 22 is inserted into the closed groove 19. The thickness value of the connecting electric sheet 23 is equal to the distance value between the two electric patches 20. When the transmission plate 22 drives the connecting electric sheet 23 to lift, the connecting electric sheet 23 can contact the two electric patches 20, thereby turning on the power supply. When the transmission plate 22 drives the connecting electric sheet 23 to move down, the connecting electric sheet 23 can separate from the two electric patches 20, thereby turning off the power supply.

[0037] Refer to Figures 5 to 9 , at one end of the movable cavity 10 away from the repulsive magnet 13, there is a fixed connection with an electromagnet 11. The electromagnet 11 and the repulsive magnet 13 repel each other. Inside the current seat 18, there is a connecting wire 21. The electromagnet 11 and the electric patch 20 are electrically connected through the connecting wire 21. The electric patch 20 is electrically connected to the existing circuit. When the "arching" phenomenon occurs violently at the contact position between the upper leather ring 8 and the lower leather ring 7 due to the force on the leather ring, the arched part of the upper leather ring 8 will push up the force-bearing plate 25, driving the transmission plate 22 to engage the connecting electric sheet 23 with the electric patch 20, making the electromagnet 11 energized to obtain magnetic force, repelling the repulsive magnet 13, so that the long rod 12 drives the central rod 15 to push the adjusting roller 16 to move away from the storage seat 9, pulling the leather ring through the moving adjusting roller 16, adjusting the tension of the leather ring, and making the "arched" leather ring flatten under the pull.

[0038] At the same time, when the adjustment is completed, the force-bearing plate 25 will lose the upward thrust of the upper leather ring 8, so that the force-bearing plate 25 drives the transmission plate 22 to pull the connecting electric sheet 23 to move down and reset under its own weight, disconnecting the electric patch 20 and the connecting electric sheet 23, making the electromagnet 11 powered off and gradually losing the repulsive force. Driven by the return spring 14, the adjusting roller 16 slowly moves back towards the storage seat 9, so that the leather ring gradually restores and reduces the tension, avoiding the negative effects such as rapid deformation, reduced lifespan, and slipping of the leather ring caused by the adjusting roller 16 adjusting the tension of the leather ring too tightly for a long time.

[0039] At the same time, when the adjusting roller 16 moves to adjust the tension of the strongly "arched" leather ring, the force exerted by the leather ring on the adjusting roller 16 towards the jaw direction increases, and the contact force between the resistance inner sleeve 17 inside the adjusting roller 16 and the central rod 15 is strengthened. Moreover, the force exerted by the central rod 15 on the resistance inner sleeve 17 is opposite to the direction of the force exerted by the leather ring on the adjusting roller 16, resulting in a further strengthening of the contact force between the resistance inner sleeve 17 and the central rod 15 and an increase in friction, thereby further increasing the friction between the adjusting roller 16 and the leather ring. The frictional resistance here is opposite to the frictional resistance of the jaw on the leather ring, thereby pulling the leather ring and quickly eliminating the strongly "arched" part of the leather ring.

[0040] Meanwhile, during the process of the frictional force between the adjusting roller 16 and the apron increasing rapidly, the self-rotation ability of the adjusting roller 16 weakens. Taking the clockwise rotation (as shown in the attached instruction manual) of the upper apron 8 as an example, at this time, the adjusting roller 16 has a high-strength frictional resistance in the opposite direction to the upper apron 8 rotating clockwise. The upper pressure roller 4 provides a clockwise traction force to the upper apron 8, which is opposite to the frictional resistance provided by the adjusting roller 16, resulting in an "arching" phenomenon of the upper apron 8 between the upper pressure roller 4 and the adjusting roller 16. Thus, the "arching" below the upper apron 8 is transferred to the upper part, quickly eliminating the "arching" phenomenon below. The same applies to the lower apron 7. Figure 6 ), taking the clockwise rotation of the upper apron 8 as an example, at this time, the adjusting roller 16 has a high-strength frictional resistance in the opposite direction to the upper apron 8 rotating clockwise. The upper pressure roller 4 provides a clockwise traction force to the upper apron 8, which is opposite to the frictional resistance provided by the adjusting roller 16, resulting in an "arching" phenomenon of the upper apron 8 between the upper pressure roller 4 and the adjusting roller 16. Thus, the "arching" below the upper apron 8 is transferred to the upper part, quickly eliminating the "arching" phenomenon below. The same applies to the lower apron 7.

Claims

1. A super-large diameter adjustment device for the front stop of a spinning frame, characterized in that: The machine comprises a frame (1), a lower roller (2), a middle roller (3), an upper pressure roller (4), a lower pin (5) and an upper pin (6), wherein the lower pin (5) is located above the lower roller (2), the upper pin (6) is located above the lower pin (5), the middle roller (3) is located on one side of the lower pin (5), and the upper pressure roller (4) is located above the middle roller (3); A storage seat (9) is provided between the upper pin (6) and the upper pressure roller (4) and between the lower pin (5) and the middle roller (3), respectively. Two symmetrical movable cavities (10) are provided in the storage seat (9). A long rod (12) is provided in the movable cavity (10). One end of the long rod (12) movably penetrates through the storage seat (9) to provide a center rod (15). A resistance inner sleeve (17) is provided on the outer side of the center rod (15) for changing the friction resistance between the center rod (15) and the center rod (15) under different stress conditions. An adjusting roller (16) is provided on the outer side of the resistance inner sleeve (17); An upper apron (8) is sleeved on the upper pin (6), the upper pressure roller (4) and the upper regulating roller (16), and a lower apron (7) is sleeved on the lower pin (5), the lower roller (2), the middle roller (3) and the lower regulating roller (16); The bottom end of the storage seat (9) at the top is provided with evenly distributed lifting ropes (24), and the bottom end of the lifting ropes (24) is connected to a force-bearing plate (25) for receiving the upward arching force of the upper leather ring (8); the bottom center of the storage seat (9) at the top is fixedly connected to a current seat (18), and a closed groove (19) is opened at the bottom end of the current seat (18), and symmetrical electric patches (20) are arranged on both sides of the bottom of the closed groove (19), and a connecting wire (21) is arranged in the current seat (18) for transmitting current; the top end of the force-bearing plate (25) is fixedly connected to a transmission plate (22), and the transmission plate (25) is fixedly connected to the transmission plate (22). The top of the moving plate (22) is fixedly connected with a connecting electric sheet (23) for synchronously moving with the force-bearing plate (25); the top of the transmission plate (22) is inserted into the closed groove (19); the thickness of the connecting electric sheet (23) is equal to the spacing between the two electric patches (20) for connecting or disconnecting current; an electromagnet (11) is provided at one end of the movable cavity (10) away from the repulsive magnet (13); the electromagnet (11) and the repulsive magnet (13) repel each other; the electromagnet (11) and the electric patch (20) are electrically connected via a connecting wire (21) for driving the adjusting roller (16) to perform linear motion.

2. The device for adjusting the oversized diameter of the front stop of a spinning frame according to claim 1, characterized in that: The two ends of the lower roller (2), the middle roller (3) and the upper pressure roller (4) are movably arranged on both sides of the frame (1), and the two ends of the lower pin (5) and the upper pin (6) are fixed on both sides of the frame (1).

3. The device for adjusting the oversized diameter of the front stop of a spinning frame according to claim 1, characterized in that: A repulsive magnet (13) is provided at one end of the long rod (12) close to the upper pin (6), and a return spring (14) wound around the outside of the long rod (12) is provided between the repulsive magnet (13) and the end of the movable cavity (10) away from the upper pin (6) for adjusting the force applied to the position of the adjusting roller (16).

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