A flexible damping extension system

Abstract

The application provides a flexible damping drafting system and relates to the technical field of textile machinery.The flexible damping drafting system comprises a curved pipe assembly, a control plate and a tension frame assembly, a second fixed magnetic strip is fixedly arranged in the curved pipe assembly, a first fixed magnetic strip for fixing the control plate is fixedly arranged in the control plate, and the first fixed magnetic strip and the second fixed magnetic strip are opposite poles.The rotating seat provided with a torsional spring is arranged on the mounting seat, the flexible transmission ring can be supported by the rotating seat pressed downward, the flexible transmission ring has a certain tension, the adjusting plate is arranged at the other end of the first sliding block and the second sliding block to support the flexible transmission ring, the flexible transmission ring always has a certain tension when the local protrusion of the yarn passes, the flexible transmission ring is prevented from loosening to affect the transmission of the yarn, and thus the yarn cannot pass smoothly when the yarn has a protrusion, the drafting system is prevented from being blocked by the yarn to affect the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile machinery, in particular to a flexible damping drafting system. BACKGROUND

[0002] The double apron drafting system is a common drafting form of the ring spinning frame. The most core of the drafting form is the double apron elastic nipper. The structure of the double apron elastic nipper mainly comprises an upper apron sleeved on the upper roller and tightened by an upper pin, a lower apron sleeved on the lower roller and tightened by a lower pin and an apron tension frame, a spring sheet is preset in the middle of the upper pin, and the spring sheet presses the upper pin and the upper apron downward during drafting, so that the upper pin and the upper apron form an elastic nipper structure which can swing, which is the curve characteristic of the double apron elastic nipper. The upper apron and the lower apron combine to form a flexible holding channel for the sliver, and the channel is designed to be in a curve shape determined by the shapes of the upper pin and the lower pin. The double apron elastic nipper drafting form improves the friction intensity in the middle and rear part of the front drafting zone, compared with simple drafting, the fiber speed change point of the sliver can be moved forward during the drafting process, the fiber speed change point is beneficial to be more concentrated, and the drafting sliver can be ensured to have a small deviation in the drafting displacement, so that the yarn quality is not seriously deteriorated due to the drafting movement.

[0003] The traditional double apron drafting system is greatly affected by temperature and humidity. The double apron drafting is to tightly hold and transfer the sliver after the micro-drafting of the middle and rear rollers to the front roller by the upper and lower aprons. Since the movement of the upper and lower aprons is driven by friction, the lower apron is the main driving part in the double apron movement, and the apron with good flexibility has greater friction, so it is not easy to slip, while the apron with hardening quality is prone to slip, displacement and jerk, which affects the quality of spinning.

[0004] The flexible damping drafting system is greatly different from the traditional ring spinning in structure. The technology removes the upper and lower aprons and the upper and lower pins in the double apron elastic nipper, and uses the flexible transmission ring and the double curve magnetic attraction to form a fixed nipper to control the fiber movement. The operation, cleaning and maintenance are greatly changed from the traditional ring spinning.

[0005] However, the flexible damping drafting system in the prior art cannot automatically adjust when the local protrusion of the yarn passes through, which easily causes the drafting system to be blocked by the yarn, and affects the work efficiency. SUMMARY

[0006] The present application aims to provide a flexible damping drafting system, which aims to solve the problem that the flexible damping drafting system in the prior art cannot automatically adjust when the local protrusion of the yarn passes through.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: the flexible damping drafting system comprises a curved pipe assembly, a control plate and a tension frame assembly, the second fixed magnetic strip is fixedly installed in the inside of the curved pipe assembly; the first fixed magnetic strip for fixing and installing the control plate is fixedly installed in the inside of the control plate, the first fixed magnetic strip and the second fixed magnetic strip are opposite poles, the third fixed magnetic strip is fixedly installed on the outer surface of the control plate, the first sliding block for installing the first adjusting plate and the second sliding block for installing the second adjusting plate are slidingly installed on the bottom of the control plate, the first adjusting magnetic strip and the second adjusting magnetic strip are fixedly installed on the other end of the first sliding block and the second sliding block respectively, the first adjusting magnetic strip is opposite poles with the first fixed magnetic strip, the second adjusting magnetic strip is opposite poles with the third fixed magnetic strip, the repulsion of the opposite poles can provide the downward driving force for the first adjusting plate and the second adjusting plate; the tension frame assembly is installed on the control plate, the fixed seat is fixedly installed on the tension frame assembly, the hook for installing the middle roller is fixedly installed on the fixed seat, the mounting seat is fixedly installed at both ends of the fixed seat, the rotating seat for installing the flexible transmission ring is rotatably installed on the mounting seat, the flexible transmission ring is rotatably installed on the control plate, the first adjusting plate, the second adjusting plate and the middle roller, the first adjusting plate, the second adjusting plate and the rotating seat simultaneously support the flexible transmission ring, and when the first adjusting plate and the second adjusting plate rise due to the yarn protrusion, the rotating seat is used for maintaining the stability of the tension of the flexible transmission ring.

[0008] The beneficial effects are that: the rotating seat provided with the torsional spring on the mounting seat can support the flexible transmission ring through the downward rotating seat, so that the flexible transmission ring has a certain tension, the first sliding block and the second sliding block are installed through the first sliding groove and the second sliding groove opened on the bottom of the control plate, the first adjusting magnetic strip is installed through the first mounting plate provided on one end of the first sliding block, the second adjusting magnetic strip is installed through the second mounting plate provided on one end of the second sliding block, and the first adjusting plate and the second adjusting plate are provided on the other end of the first sliding block and the second sliding block respectively to support the flexible transmission ring, so that the flexible transmission ring always has a certain tension when the local protrusion of the yarn passes, avoiding the loosening of the flexible transmission ring affecting the transmission of the yarn, so that the yarn cannot pass smoothly when the yarn has a protrusion, causing the drafting system to be stuck with the yarn and affecting the work efficiency.

[0009] Further technical scheme of the present application is that the curved pipe assembly comprises a curved pipe, the middle part of the curved pipe is a groove, and the sliding seat for installing the middle roller is fixedly installed on the end of the curved pipe.

[0010] Further technical solutions of the present application are that the middle part of the bottom of the control plate is a convex structure, the convex structure of the bottom of the control plate can be matched with the groove in the middle part of the curved pipe, the outgoing line end of the control plate is lower than the outgoing line end of the curved pipe and the end is provided with a transition fillet.

[0011] Further technical solutions of the present application are that the inside of the control plate is provided with a cavity for mounting the first fixed magnetic strip, the bottom of the control plate is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are respectively used for mounting the first sliding block and the second sliding block, and the first adjusting magnetic strip is slidingly mounted in the inside of the cavity.

[0012] Further technical solutions of the present application are that the two ends of the control plate are both provided with a spacing block for limiting the mounting strip, the inner shape of the spacing block is matched with the outer shape of the control plate, and the spacing block makes the control plate have a gap with the curved pipe for the yarn to pass through.

[0013] Further technical solutions of the present application are that the inside of the first sliding block and the second sliding block is both provided with a magnetic block, the magnetic block is opposite to the second fixed magnetic strip in the inside of the curved pipe, and the adsorption force of the opposite poles can also give the first adjusting plate and the second adjusting plate a downward force.

[0014] Beneficial effects are that the adsorption force of the magnetic block and the second fixed magnetic strip in the opposite poles can also give the first adjusting plate and the second adjusting plate a downward force, so that the first adjusting plate and the second adjusting plate have a certain stability and can quickly reset after rising when the local protrusion of the yarn passes through.

[0015] Further technical solutions of the present application are that the bottom of the fixing seat and the mounting seat is both fixedly provided with a mounting strip for connecting the control plate.

[0016] Further technical solutions of the present application are that the inside of the control plate is provided with a dovetail groove for mounting the mounting strip, and the spacing block is used for limiting the mounting strip slidingly mounted in the inside of the dovetail groove.

[0017] Further technical solutions of the present application are that the rotating seat is rotatably mounted on the mounting seat through a first rotating shaft, and the top of the rotating seat is rotatably provided with a second rotating shaft for mounting the flexible transmission ring.

[0018] Further technical solutions of the present application are that the flexible transmission ring is a grid-shaped woven fabric. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present application.

[0020] Figure 2 It is a structural schematic diagram of the curved pipe assembly in the specific embodiment of the present application.

[0021] Figure 3 is the structural schematic diagram of the spacer block in the specific embodiment of the present application.

[0022] Figure 4 is the structural schematic diagram of the tension frame assembly in the specific embodiment of the present application.

[0023] Figure 5 is the structural schematic diagram of the flexible transmission ring in the specific embodiment of the present application.

[0024] Figure 6 is the side view of the control plate in the specific embodiment of the present application.

[0025] Figure 7 is the structural schematic diagram of the control plate in the specific embodiment of the present application.

[0026] Figure 8 is the structural schematic diagram of the adjusting plate in the specific embodiment of the present application.

[0027] Figure 9 is the structural schematic diagram of the fixed seat in the first perspective in the specific embodiment of the present application.

[0028] Figure 10 is the structural schematic diagram of the fixed seat in the second perspective in the specific embodiment of the present application.

[0029] In the figure: 1-curved pipe assembly, 11-curved pipe, 12-positioning port, 13-sliding seat, 2-control plate, 201-first sliding groove, 202-second sliding groove, 203-third fixed magnetic strip, 21-swallow tail groove, 22-cavity, 23-first fixed magnetic strip, 24-spacer block, 25-first sliding block, 26-second sliding block, 27-first mounting plate, 271-first adjusting magnetic strip, 28-second mounting plate, 281-second adjusting magnetic strip, 29-first adjusting plate, 291-second adjusting plate, 3-tension frame assembly, 31-fixed seat, 32-mounting seat, 33-rotating seat, 331-first rotating shaft, 332-second rotating shaft, 34-mounting strip, 35-hook, 36-flexible transmission ring, 4-middle skin roller, 5-middle roller. DETAILED DESCRIPTION

[0030] The specific embodiment of the present application is further described below in combination with the drawings.

[0031] As Figures 1-2As shown in the figure, a flexible damping drawing system comprises a curved pipe assembly 1, a control plate 2 is slidingly installed on the curved pipe assembly 1, a tension frame assembly 3 is slidingly installed on the control plate 2, a middle roller 4 is rotatably installed inside the tension frame assembly 3, the curved pipe assembly 1 comprises a curved pipe 11, the middle part of the curved pipe 11 is a groove, positioning ports 12 are fixedly installed at the ends of the curved pipe 11, sliding seats 13 are installed at the ends of the two positioning ports 12 away from the curved pipe 11, the sliding seats 13 are installed on a base and are used for installing a centering roller 5.

[0032] As shown in the figure, Figures 3-5 the tension frame assembly 3 comprises a fixed seat 31, mounting seats 32 are fixedly installed at the two ends of the fixed seat 31, a rotating seat 33 is rotatably installed on the mounting seat 32 through a first rotating shaft 331, a torsional spring (not shown in the figure) is sleeved on the outer surface of the first rotating shaft 331, the two ends of the torsional spring are in abutment with the rotating seat 33 and the mounting seat 32, the rotating seat 33 can be rotated from a vertical state to an inclined state, a second rotating shaft 332 is rotatably installed on the top of the rotating seat 33, two mounting strips 34 for connecting the control plate 2 are fixedly installed on the bottom of the fixed seat 31 and the mounting seat 32, the cross section of the mounting strip 34 is isosceles trapezoidal, and the upper end surface of the mounting strip 34 is fixedly connected with the fixed seat 31 and the mounting seat 32.

[0033] As shown in the figure, Figures 9-10 a hook 35 for installing the centering roller 4 is fixedly installed on one side of the upper surface of the fixed seat 31, the centering roller 4 can rotate in the hook 35, a flexible transmission ring 36 is sleeved on the two ends of the centering roller 4, the second rotating shaft 332 and the control plate 2, the rotating seat 33 is slightly inclined downward to make the flexible transmission ring 36 have a certain tension, the flexible transmission ring 36 is a grid-shaped woven fabric, and its circumference and mesh number can be adjusted according to needs, when the tows are conveyed to the drawing area by the centering roller 5, the tows are adsorbed on the flexible transmission ring 36 and are transferred to the forward roller 6 along with the operation of the flexible transmission ring 36.

[0034] As shown in the figure, Figures 3-5As shown, the middle of the bottom of the control plate 2 is a convex structure, which can be matched with the groove in the middle of the curved pipe 11. The outgoing line end of the control plate 2 is lower than the outgoing line end of the curved pipe 11 and is provided with a transition round corner. Two dovetail grooves 21 and a cavity 22 are arranged in the control plate 2, which are distributed along the longitudinal direction. The top of the two dovetail grooves 21 penetrates the upper surface of the control plate 2, and the cross section of the two dovetail grooves 21 is also isosceles trapezoidal, but the cross section of the dovetail groove 21 is slightly larger than the cross section of the mounting strip 34, so that the dovetail groove 21 can install the mounting strip 34. The top of the inner wall of the cavity 22 is fixedly installed with a first fixed magnetic strip 23. The curved pipe 11 is fixedly installed with a second fixed magnetic strip, which is opposite to the first fixed magnetic strip 23, so as to facilitate the user to install the control plate 2 and the tension frame assembly 3 installed on the control plate 2 on the curved pipe 11. The two ends of the control plate 2 are provided with spacing blocks 24 for limiting the mounting strip 34. The inner shape of the spacing block 24 is matched with the outer shape of the control plate 2. The spacing block 24 makes the control plate 2 and the curved pipe 1 have a gap for the yarn to pass through.

[0035] As shown in the figure, Figures 6-8 The bottom of the control plate 2 is provided with a first sliding groove 201 and a second sliding groove 202. The first sliding groove 201 and the second sliding groove 202 are respectively slidably installed with a first sliding block 25 and a second sliding block 26. The top of the first sliding block 25 and the second sliding block 26 is respectively fixedly installed with a first mounting plate 27 and a second mounting plate 28. The bottom of the first sliding block 25 and the second sliding block 26 is respectively fixedly installed with a first adjusting plate 29 and a second adjusting plate 291. The first adjusting plate 29 and the second adjusting plate 291 are located in the interior of the flexible transmission ring 36. The upper surface of the first mounting plate 27 and the second mounting plate 28 is respectively fixedly installed with a first adjusting magnetic strip 271 and a second adjusting magnetic strip 281. The first adjusting magnetic strip 271 is located in the interior of the cavity 22 and is opposite to the first fixed magnetic strip 23, so as to generate a downward thrust on the first adjusting plate 29 to make it abut against the flexible transmission ring 36. The outer surface of the control plate 2 is fixedly installed with a third fixed magnetic strip 203, which is opposite to the second adjusting magnetic strip 281, so as to generate a downward thrust on the second adjusting plate 291. The interior of the first sliding block 25 and the second sliding block 26 is respectively installed with a magnetic block, which is opposite to the first adjusting magnetic strip 271 and the second adjusting magnetic strip 281, that is, the magnetic block is opposite to the second fixed magnetic strip in the interior of the curved pipe 1. The adsorption force of the opposite poles can also generate a downward force on the first adjusting plate 29 and the second adjusting plate 291.

[0036] When the local protrusion of the yarn passes through the first adjusting plate 29 or the second adjusting plate 291, the first adjusting plate 29 or the second adjusting plate 291 is slightly moved upward by the force of the yarn protrusion to ensure the smooth passing of the local protrusion of the yarn, at this time, the slightly downward inclined rotating seat 33 resets with the rising of the first adjusting plate 29 or the second adjusting plate 291 to keep the flexible transmission ring 36 with a certain tension, after the local protrusion of the yarn passes, the first adjusting plate 29 or the second adjusting plate 291 resets under the action of the double repulsion and the magnetic block adsorption force and drives the rotating seat 33 to incline downward, and then the flexible transmission ring 36 always has a certain tension when the local protrusion of the yarn passes, avoiding the loosening of the flexible transmission ring 36 affecting the transmission of the yarn.

[0037] In the specific embodiment, by setting the rotating seat 33 with a torsional spring in the mounting seat 32, the flexible transmission ring 36 can be supported by the downward rotating seat 33 to have a certain tension, the first sliding slot 201 and the second sliding slot 202 are set in the bottom of the control panel 2 to respectively install the first sliding block 25 and the second sliding block 26, the first adjusting magnetic strip 271 is installed by setting the first mounting plate 27 at one end of the first sliding block 25, the second adjusting magnetic strip 281 is installed by setting the second mounting plate 28 at one end of the second sliding block 26, and the flexible transmission ring 36 is supported by setting the first adjusting plate 29 and the second adjusting plate 291 at the other end of the first sliding block 25 and the second sliding block 26, so that the flexible transmission ring 36 always has a certain tension when the local protrusion of the yarn passes, avoiding the loosening of the flexible transmission ring 36 affecting the transmission of the yarn, so that the yarn with protrusion cannot pass smoothly, causing the yarn to be stuck in the drafting system and affecting the work efficiency.

Claims

1. A flexible damping drafting system, characterized in that it comprises: a curved tube assembly (1), the inside of which is fixedly installed with a second fixed magnetic strip; a control plate (2), the inside of which is fixedly installed with a first fixed magnetic strip (23) for installation and fixation thereof, the first fixed magnetic strip (23) being opposite in polarity to the second fixed magnetic strip, the outer surface of the control plate (2) being fixedly installed with a third fixed magnetic strip (203), the bottom of the control plate (2) being slidably installed with a first sliding block (25) for installation of a first adjusting plate (29) and a second sliding block (26) for installation of a second adjusting plate (291), the other end of the first sliding block (25) and the second sliding block (26) being fixedly installed with a first adjusting magnetic strip (271) and a second adjusting magnetic strip (281) respectively, the first adjusting magnetic strip (271) being opposite in polarity to the first fixed magnetic strip (23), the second adjusting magnetic strip (281) being opposite in polarity to the third fixed magnetic strip (203), the repulsion of opposite polarity being able to give the first adjusting plate (29) and the second adjusting plate (291) a downward driving force; a tension frame assembly (3) installed on the control plate (2), the tension frame assembly (3) having a fixed seat (31), the fixed seat (31) being fixedly installed with a hook (35) for installation of a centering roller (4), the two ends of the fixed seat (31) being fixedly installed with a mounting seat (32) respectively, the mounting seat (32) being rotatably installed with a rotating seat (33) for installation of a flexible transmission ring (36), the inside of the rotating seat (33) being connected with the fixed seat (31) through a torsional spring, the flexible transmission ring (36) also being rotatably installed on the control plate (2), the first adjusting plate (29), the second adjusting plate (291) and the centering roller (4), the first adjusting plate (29), the second adjusting plate (291) and the rotating seat (33) simultaneously supporting the flexible transmission ring (36), and the rotating seat (33) being used for maintaining the stability of the tension of the flexible transmission ring (36) when the first adjusting plate (29) and the second adjusting plate (291) rise in the presence of yarn protrusions; the inside of the control plate (2) being provided with a cavity (22) for installation of the first fixed magnetic strip (23), the bottom of the control plate (2) being provided with a first sliding groove (201) and a second sliding groove (202), the first sliding groove (201) and the second sliding groove (202) being used for installation of the first sliding block (25) and the second sliding block (26) respectively, the first adjusting magnetic strip (271) being slidably installed in the inside of the cavity (22); the inside of the first sliding block (25) and the second sliding block (26) is installed with a magnetic block, the magnetic block being opposite in polarity to the second fixed magnetic strip in the inside of the curved tube assembly (1), the adsorption of opposite polarity being also able to give the first adjusting plate (29) and the second adjusting plate (291) a downward force.

2. A flexible damping tensile system according to claim 1, characterized in that The curve pipe assembly (1) comprises a curve pipe (11), the middle part of the curve pipe (11) is a groove, and the end part of the curve pipe (11) is fixedly provided with a sliding seat (13) for mounting a centering roller (5).

3. A flexible damping tensile system according to claim 1, characterized in that The middle part of the bottom of the control plate (2) is a convex structure, the convex structure of the bottom of the control plate (2) can be matched with the groove in the middle part of the curve pipe (11), the outgoing line end of the control plate (2) is lower than the outgoing line end of the curve pipe (11), and the end is provided with a transition fillet.

4. A flexible damping tensile system according to claim 1, characterized in that, Both ends of the control plate (2) are provided with spacing blocks (24) for limiting the installation strips (34), the inner shape of the spacing blocks (24) is matched with the outer shape of the control plate (2), and the spacing blocks (24) make the control plate (2) have a gap with the curve pipe assembly (1) to pass the yarn.

5. A flexible damping tensile system according to claim 1, characterized in that The bottom of the fixing seat (31) and the mounting seat (32) is fixedly provided with an installation strip (34) for connecting the control plate (2).

6. A flexible damping tensile system according to claim 4, characterized in that The inside of the control plate (2) is provided with a dovetail groove (21) for mounting the installation strip (34), and the spacing block (24) is used for limiting the installation strip (34) which is slidably mounted in the dovetail groove (21).

7. A flexible damping tensile system according to claim 1, characterized in that The rotating seat (33) is rotatably mounted on the mounting seat (32) through a first rotating shaft (331), and the top of the rotating seat (33) is rotatably provided with a second rotating shaft (332) for mounting a flexible transmission ring (36).

8. A flexible damping system according to any one of claims 1-7, characterised in that The flexible transmission ring (36) is a grid-shaped woven fabric.

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