CN110863382A - Constant-tension pay-off device and using method thereof - Google Patents

Constant-tension pay-off device and using method thereof Download PDF

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Publication number
CN110863382A
CN110863382A CN201911372449.XA CN201911372449A CN110863382A CN 110863382 A CN110863382 A CN 110863382A CN 201911372449 A CN201911372449 A CN 201911372449A CN 110863382 A CN110863382 A CN 110863382A
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damping
arm
spool
force
tension
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CN201911372449.XA
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CN110863382B (en
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张宏
杨存根
吉余根
刘宝华
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Jiangsu Xingda Steel Tyre Cord Co Ltd
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Jiangsu Xingda Steel Tyre Cord Co Ltd
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    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B7/00Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02Machine details; Auxiliary devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/382Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using mechanical means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

The invention provides a constant-tension pay-off device and a use method thereof, wherein the pay-off device comprises a damping brake disc, a chain type damping device, a damping tension spring, a damping pull rope, a swing arm tension spring, a force arm adjusting screw, a force arm tension spring, a connecting rod, a chain type damping adjusting screw and a force arm; under the combined action of the damping tension spring, the force arm tension spring and the swing arm tension spring, the swing arm moves close to the spool diameter, so that the size of the spool diameter can be fed back in real time; according to the change of the rotation angle, the length of the damping stay cord wound on the circumference of the steel wire rope is changed, so that the length of the damping tension spring is changed, the damping function of the chain type damping device is achieved, the linear change of the chain type damping device is realized by utilizing the linear relation between the length of the damping stay cord and the tension, the linear change of the damping in the middle of the process is ensured, and the condition that the surface quality of the front part and the rear part of the steel wire rope finished product is different due to the fact that a certain range exists between the tension in a full wheel state and an empty spool state is avoided.

Description

Constant-tension pay-off device and using method thereof
Technical Field
The invention relates to a steel strand tension control device of a steel cord, in particular to a constant tension pay-off device and a using method thereof.
Background
In the production process of a tubular strander, the tension of the strand needs to be strictly controlled, particularly in the project with higher requirements on the surface quality of the steel wire rope, the quality of a finished product is influenced by the direct relation of the change of the strand tension, and in the whole paying-off process of the strand, because the paying-off damping is constant, the strand tension can be gradually increased along with the gradual reduction of the winding diameter of the strand of a spool, the tension and the tension in a full-wheel state have certain extreme difference with each other in an empty spool state, so that the surface quality of the front part and the rear part of the finished steel wire rope is different, and the defects of core collapse, waves and the like are caused after the steel wire rope. Therefore, a paying-off device is needed, so that paying-off damping can be automatically adjusted finely according to the size of the coil diameter of the strand, and the tension of the strand is consistent in the whole paying-off process.
Disclosure of Invention
The invention aims to solve the problem that the surface quality of the front part and the rear part of a finished steel wire rope is different due to the fact that the tension of the steel wire rope in a full-wheel state and the tension of the steel wire rope in an empty-spool state are extremely poor in the paying-off process in the prior art, and provides a constant-tension paying-off device and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a constant tension pay-off device is installed on a tubular strander, the tubular strander comprises a spool, a steel wire on the spool is paid off and then sequentially bypasses a pay-off guide pipe (16), a force arm guide wheel (10) and a cradle guide wheel (11), and the steel wire is led out from the cradle guide wheel (11), and the constant tension pay-off device comprises a damping brake disc (17), a chain type damping device (15), a damping tension spring (14), a damping pull rope (13), a swing arm (2), a swing arm tension spring (8), a force arm adjusting screw (9), a force arm tension spring (5), a connecting rod (4), a chain type damping adjusting screw (12) and a force arm (7);
the damping brake disc (17) is fixed on the spool, the chain type damping device (15) winds the damping brake disc (17) for half circle, and two ends of the chain type damping device (15) are respectively connected with the chain type damping adjusting screw rod (12) and the damping tension spring (14) along the horizontal direction one above the other; the one end of damping extension spring (14) is connected the tip that chain damping device (15) is located the below, and the other end is connected damping stay cord (13), damping stay cord (13) are fixed on swing arm (2), swing arm (2) include upper arm (201) and underarm (201), upper arm (201) are "P" form, the thinner one end of upper arm (201) with the one end of swing arm extension spring (8) is connected, the other end of swing arm extension spring (8) connect in cradle guide pulley (11), still fix on cradle guide pulley (11) arm adjusting screw (9), the below of arm adjusting screw (9) is connected with the upper end of arm of force extension spring (5), the lower extreme of arm of force extension spring (5) is connected connecting rod (4), connecting rod (4) with arm of force (7) are as an organic whole and rotate around the center pin, the swing arm 2 can rotate the joint of the connecting rod 4 and the force arm 7; chain damping adjusting screw (12) are fixed on arm of force (7), the upper end of arm of force (7) is connected arm of force guide pulley (10), the lower extreme of arm of force (7) is connected the thick one end of upper arm (201), underarm (202) integrated connection in the thin one end tip of upper arm (201), keeping away from of underarm (202) the one end of upper arm (201) is fixed with gyro wheel (1), the gyro wheel is located the I-shaped wheel below.
Preferably, when the spool is a spool with a bottom roll diameter, the roller (1) is tightly attached to the lower part of the spool.
Preferably, the lower arm (202) of the swing arm (2) is arc-shaped, and the radian of the lower arm (202) is the same as that of the spool.
Preferably, the P-shaped upper arm (201) is installed downwards in an arc shape, and the damping pull rope (13) is wound around the arc edge of the upper arm (201) and fixed at the top end of the upper arm (201).
Preferably, the swing arm (2) is connected with the force arm (7) in an assembling mode through a bearing (3) and a spacer bush, and the force arm (7) is connected with the force arm guide wheel (10) in an assembling mode through a bearing.
A method for using the constant tension pay-off device comprises the following steps:
step 1, after the assembly of the constant-tension pay-off device is completed, firstly throwing a spool with a diameter of a spool bottom coil, and adjusting the force arm adjusting screw (9) and the chain type damping adjusting screw (12) to enable the roller (1) to be tightly attached to the spool bottom of the spool and adjust the tension of an outlet strand to a process standard;
step 2, dismounting the spool with the diameter rolled at the bottom of the wheel, replacing the spool with the diameter rolled at the full wheel, pressing down the roller (1) through the self weight of the spool, enabling the swing arm (2) to rotate anticlockwise around a central shaft of the force arm (7), tightening the damping pull rope (13), increasing the deformation of the damping spring (14) and the force arm tension spring (5), increasing the friction force applied on the damping brake disc (17) by the chain type damping device (15), and until the tension of the outgoing strand is detected to be consistent with the bottom of the wheel;
and 3, after the machine tool normally runs, along with the gradual reduction of the winding diameter of the spool, the swing arm (2) rotates clockwise by taking the force arm (7) as a central rotating shaft to release the damping pull rope (13) and reduce the deformation of the damping tension spring (14) so as to enable the damping F of the chain type damping device (15)Resistance deviceAnd spool winding diameter RRoll of paperProportional relation according to the formula of moment FResistance device×RResistance device=FSheet of paper×RRoll of paperIn which F isResistance device-force applied by chain damping; rResistance device-damping the brake disc radius; fSheet of paper-strand outlet tension; rRoll of paperDiameter of spool strand reel, FResistance deviceAnd RRoll of paperIn a proportional relationship, then FSheet of paperAnd RResistance deviceIs also proportional, again because RResistance deviceIs constant, therefore FSheet of paperAlso remains constant.
Preferably, the diameter of the spool with the bottom roll diameter thrown in the step 1 is the same as that of the spool with the full roll diameter thrown in the step 2.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the self weight of the spool to press down the roller on the swing arm, and simultaneously, the damping tension spring, the force arm tension spring and the swing arm tension spring are jointly usedUnder the action, the swing arm moves close to the spool diameter, and the size of the spool diameter can be fed back in real time; according to the change of the rotation angle, the length of the damping stay cord wound on the circumference of the damping stay cord is changed to cause the length of the damping tension spring to be changed, so that the damping function of the chain type damping device is achieved, the linear change of the chain type damping device is realized by utilizing the linear relation between the length of the damping stay cord and the tension, the linear change of the damping in the middle of the process is ensured, and the damping in the middle of the process is changed according to a torque formula FResistance device×RResistance device=FSheet of paper×RRoll of paper,FResistance deviceAnd RRoll of paperIn a proportional relationship, then FSheet of paperAnd RResistance deviceIs also proportional, again because RResistance deviceIs constant, therefore FSheet of paperThe tension of the steel wire rope is kept constant, and the situation that the surface quality of the front part and the rear part of the finished steel wire rope is different due to the fact that certain extreme difference exists between the tension of the steel wire rope in a full-wheel state and the tension of the steel wire rope in an empty spool state can be avoided. The invention has reasonable structural design, is convenient to maintain, ensures the stability of products and improves the product quality.
Drawings
FIG. 1 is a right side view of a constant tension pay-off mounted on a tube strander;
FIG. 2 is a front view of a constant tension pay-off device;
fig. 3 is a left side view of a constant tension pay-off.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 to 3, the present invention provides a constant tension pay-off device installed on a tube strander for strictly controlling the tension of the strands. The tubular strander comprises a spool, as shown in fig. 1, after being paid off, steel wires on the spool sequentially pass through a paying-off guide pipe 16, a force arm guide wheel 10 and a cradle guide wheel 11 and are led out from the cradle guide wheel 11. The constant-tension pay-off device comprises a damping brake disc 17, a chain type damping device 15, a damping tension spring 14, a damping pull rope 13, a swing arm 2, a swing arm tension spring 8, a force arm adjusting screw 9, a force arm tension spring 5, a connecting rod 4, a chain type damping adjusting screw 12 and a force arm 7.
As shown in fig. 1, the damping brake disc 17 is fixed on the spool, and the circle center of the damping brake disc is the same as that of the spool; the chain type damping device 15 is wound around a half circle of the damping brake disc 17, and two ends of the chain type damping device 15 are respectively connected with the chain type damping adjusting screw 12 and the damping tension spring 14 one above the other along the horizontal direction; one end of a damping tension spring 14 is connected with the end part of a chain type damping device 15 positioned below, the other end of the damping tension spring is connected with a damping pull rope 13, the damping pull rope 13 is fixed on a swing arm 2, the swing arm 2 comprises an upper arm 201 and a lower arm 201, the upper arm 201 is in a P shape, the thinner end of the upper arm 201 is connected with one end of a swing arm tension spring 8, the other end of the swing arm tension spring 8 is upwards connected with a cradle guide 11, the cradle guide wheel 11 is fixed on a cradle guide wheel bracket 6, a force arm adjusting screw 9 is also fixed on the cradle guide wheel 11, namely, the swing arm tension spring 8 and the force arm adjusting screw 9 are both fixed on the cradle guide wheel 11 and the cradle guide wheel bracket 6, the lower part of the force arm adjusting screw 9 is connected with the upper end; swing arm 2 is the handing-over department of connecting rod 4 and arm of force 7 rotatably, and arm of force adjusting screw 9's upper end is connected with chain damping adjusting screw 12, and chain damping adjusting screw 12 fixes on arm of force 7, and arm of force guide pulley 10 is connected to arm of force 7's upper end, and the thicker one end of upper arm 201 is connected to arm of force 7's lower extreme, and lower arm 202 an organic whole is connected in the thinner one end tip of upper arm 201, keeps away from of lower arm 202 the one end of upper arm 201 is fixed with gyro wheel 1, and gyro wheel 1 is located the I.
Preferably, when the spool is a spool with a bottom roll diameter, the roller 1 is tightly attached below the spool. The I-shaped wheel presses the roller 1 downwards, the roller 1 rolls along the outer periphery of the I-shaped wheel and drives the swing arm 2 to rotate around the force arm 7, when the swing arm 2 rotates, the swing arm tension spring 8 connected with the swing arm 2 deforms, meanwhile, the connecting rod 4 connected with the swing arm 2 drives the power arm tension spring 5 to deform, when the swing arm 2 rotates, the damping pull rope 13 wound on the swing arm 2 releases or tightens, the deformation of the damping clamp spring 14 can be influenced by the change of the damping pull rope 13, the force arm adjusting screw 9 can adjust the deformation of the force arm tension spring 8, and the damping chain type damping adjusting screw 12 can adjust the deformation of the damping.
According to the invention, according to the change of the rotation angle, the length of the damping stay cord 13 wound on the circumference of the damping stay cord is changed, so that the length of the damping tension spring 14 is changed, thereby achieving the function of adjusting the damping of the chain type damping device 12, realizing the linear change of the chain type damping device 12 by utilizing the linear relation between the length of the damping stay cord 13 and the pulling force, ensuring the damping in the middle of the process to be changed linearly, achieving the purpose of keeping the outlet tension of the plied yarn constant, and avoiding the situation that the surface quality of the front part and the rear part of the steel wire rope finished product is different due to the certain extreme difference between the tension in a full-.
Preferably, the lower arm 202 of the swing arm 2 is arc-shaped, and the arc of the lower arm 202 is the same as that of the spool. With the reduction of the strand in the spool, the roller 1 rolls along the outer edge of the spool, the lower arm 202 of the swing arm 2 moves along with the spool, the radian of the lower arm 202 is the same as that of the spool, the rotating and paying-off of the spool cannot be influenced, and the arc-shaped lower arm 202 can drive the upper arm 201 to move more effortlessly.
Preferably, the upper arm 201 of the "P" shape is installed with the arc downward, and the damping rope 13 is wound around the arc edge of the upper arm 201 and fixed on the top end of the upper arm 201. The damping cord 13 passes under the upper arm 201, and is wound and fixed upward along the arc of the upper arm 201, so that when the upper arm 201 rotates with the lower arm 202, the damping cord 13 is tightened or released along the arc of the upper arm 201.
Preferably, the swing arm 2 is connected with the force arm 7 in an assembling mode through the bearing 3 and the spacer bush, and the force arm 7 is connected with the force arm guide wheel 10 in an assembling mode through the bearing and runs independently.
A method of using a constant tension pay-off device as defined in any one of the preceding claims, comprising the steps of:
step 1, after the assembly of the constant-tension pay-off device is completed, firstly, a spool with a diameter of a spool bottom coil, an adjusting force arm adjusting screw 9 and a chain type damping adjusting screw 12 are thrown, so that a roller 1 is tightly attached to the spool bottom of the spool, and the tension of an outgoing line strand is adjusted to a process standard;
step 2, the spool with the diameter rolled at the wheel bottom is dismounted and replaced by the spool with the diameter rolled at the full wheel, the roller 1 is pressed down by the self weight of the spool, the swing arm 2 rotates anticlockwise around the central shaft of the force arm 7, the damping pull rope 13 is tightened, the deformation of the damping spring 14 is increased, the friction force applied on the damping brake disc 17 by the chain type damping device 15 is increased, and the tension of the outgoing strand is detected to be consistent with the wheel bottom again;
step 3, after the machine tool operates normally, along with the gradual reduction of the roll diameter of the spool, the swing arm 2 rotates clockwise by taking the force arm 7 as a central rotating shaft, the damping pull rope 13 is released, the deformation of the damping tension spring 14 is reduced, and the damping F of the chain type damping device 15 is enabled to be realizedResistance deviceAnd spool winding diameter RRoll of paperProportional relation according to the formula of moment FResistance device×RResistance device=FSheet of paper×RRoll of paperIn which F isResistance device-force applied by chain damping; rResistance device-damping the brake disc radius; fSheet of paper-strand outlet tension; rRoll of paperDiameter of spool strand reel, FResistance deviceAnd RRoll of paperIn a proportional relationship, then FSheet of paperAnd RResistance deviceIs also proportional, again because RResistance deviceIs constant, therefore FSheet of paperAlso remains constant.
Preferably, the diameter of the spool with the bottom roll diameter thrown in the step 1 is the same as that of the spool with the full roll diameter thrown in the step 2.
According to the invention, the roller on the swing arm is pressed downwards by using the self weight of the spool, and simultaneously, under the combined action of the damping tension spring, the force arm tension spring and the swing arm tension spring, the swing arm moves close to the spool diameter, so that the spool diameter can be fed back in real time; according to the change of the rotation angle, the length of the damping stay cord wound on the circumference of the damping stay cord is changed to cause the length of the damping tension spring to be changed, so that the function of adjusting the damping of the chain type damping device is achieved, the linear change of the chain type damping device is realized by utilizing the linear relation between the length of the tension spring stay cord and the tension, the linear change of the damping in the middle of the process is ensured, and the damping in the middle of the process is ensured according to aResistance device×RResistance device=FSheet of paper×RRoll of paper,FResistance deviceAnd RRoll of paperIn a proportional relationship, then FSheet of paperAnd RResistance deviceIs also proportional, again because RResistance deviceIs constant, therefore FSheet of paperThe tension of the steel wire rope is kept constant, and the situation that the surface quality of the front part and the rear part of the finished steel wire rope is different due to the fact that certain extreme difference exists between the tension of the steel wire rope in a full-wheel state and the tension of the steel wire rope in an empty spool state can be avoided.The invention has reasonable structural design, is convenient to maintain, ensures the stability of products and improves the product quality.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims (7)

1. The utility model provides a constant tension pay-off installs on tubular strander, tubular strander includes the I-shaped wheel, walk around unwrapping wire pipe (16), arm of force guide pulley (10) and cradle guide pulley (11) in proper order behind the steel wire unwrapping wire on the I-shaped wheel, and follow cradle guide pulley (11) department is qualified for the next round of competitions, its characterized in that: the constant-tension pay-off device comprises a damping brake disc (17), a chain type damping device (15), a damping tension spring (14), a damping pull rope (13), a swing arm (2), a swing arm tension spring (8), a force arm adjusting screw (9), a force arm tension spring (5), a connecting rod (4), a chain type damping adjusting screw (12) and a force arm (7);
the damping brake disc (17) is fixed on the spool, the chain type damping device (15) winds the damping brake disc (17) for half circle, and two ends of the chain type damping device (15) are respectively connected with the chain type damping adjusting screw rod (12) and the damping tension spring (14) along the horizontal direction one above the other; the one end of damping extension spring (14) is connected the tip that chain damping device (15) is located the below, and the other end is connected damping stay cord (13), damping stay cord (13) are fixed on swing arm (2), swing arm (2) include upper arm (201) and underarm (201), upper arm (201) are "P" form, the thinner one end of upper arm (201) with the one end of swing arm extension spring (8) is connected, the other end of swing arm extension spring (8) connect in on support (6) of cradle guide pulley (11), still fix on support (6) of cradle guide pulley (11) arm adjusting screw (9), the below of arm adjusting screw (9) is connected with the upper end of extension spring (5), the lower extreme of arm of force (5) is connected connecting rod (4), connecting rod (4) with arm of force (7) are as an organic whole around the center pin rotation, the swing arm 2 can rotate the joint of the connecting rod 4 and the force arm 7; chain damping adjusting screw (12) are fixed on arm of force (7), the upper end of arm of force (7) is connected arm of force guide pulley (10), the lower extreme of arm of force (7) is connected the thick one end of upper arm (201), underarm (202) integrated connection in the thin one end tip of upper arm (201), keeping away from of underarm (202) the one end of upper arm (201) is fixed with gyro wheel (1), the gyro wheel is located the I-shaped wheel below.
2. A constant tension pay-off device as defined in claim 1, wherein: when the spool is a spool with a diameter of being rolled at the bottom of the spool, the roller (1) is tightly attached to the lower part of the spool.
3. A constant tension pay-off device as defined in claim 1, wherein: the lower arm (202) of the swing arm (2) is arc-shaped, and the radian of the lower arm (202) is the same as that of the spool.
4. A constant tension pay-off device as defined in claim 3, wherein: the P-shaped upper arm (201) is installed downwards in an arc shape, and the damping pull rope (13) bypasses the arc edge of the upper arm (201) and is fixed to the top end of the upper arm (201).
5. A constant tension pay-off device as defined in claim 1, wherein: the swing arm (2) is connected with the force arm (7) through a bearing (3) and a spacer bush in an assembling mode, and the force arm (7) is connected with the force arm guide wheel (10) through a bearing in an assembling mode.
6. A method of using a constant tension pay-off device as defined in any one of claims 1 to 5, comprising the steps of:
step 1, after the assembly of the constant-tension pay-off device is completed, firstly throwing a spool with a diameter of a spool bottom coil, and adjusting the force arm adjusting screw (9) and the chain type damping adjusting screw (12) to enable the roller (1) to be tightly attached to the spool bottom of the spool and adjust the tension of an outlet strand to a process standard;
step 2, dismounting the spool with the diameter rolled at the bottom of the wheel, replacing the spool with the diameter rolled at the full wheel, pressing down the roller (1) through the self weight of the spool, enabling the swing arm (2) to rotate anticlockwise around a central shaft of the force arm (7), tightening the damping pull rope (13), increasing the deformation of the damping spring (14), increasing the friction force exerted on the damping brake disc (17) by the chain type damping device (15), and until the tension of the outgoing strand is detected to be consistent with the bottom of the wheel;
and 3, after the machine tool normally runs, along with the gradual reduction of the winding diameter of the spool, the swing arm (2) rotates clockwise by taking the force arm (7) as a central rotating shaft to release the damping pull rope (13) and reduce the deformation of the damping tension spring (14) so as to enable the damping F of the chain type damping device (15)Resistance deviceAnd spool winding diameter RRoll of paperProportional relation according to the formula of moment FResistance device×RResistance device=FSheet of paper×RRoll of paperIn which F isResistance device-force applied by chain damping; rResistance device-damping the brake disc radius; fSheet of paper-strand outlet tension; rRoll of paperDiameter of spool strand reel, FResistance deviceAnd RRoll of paperIn a proportional relationship, then FSheet of paperAnd RResistance deviceIs also proportional, again because RResistance deviceIs constant, therefore FSheet of paperAlso remains constant.
7. A method of using a constant tension pay-off device as defined in claim 6, wherein: the diameter of the spool with the diameter of the reel bottom roll used in the step 1 is the same as that of the spool with the diameter of the full reel used in the step 2.
CN201911372449.XA 2019-12-27 2019-12-27 Constant tension paying-off device and use method thereof Active CN110863382B (en)

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CN112647329A (en) * 2021-01-20 2021-04-13 江阴鼎天科技有限公司 Mechanical constant-tension pay-off device for producing steel wire rope
CN113734901A (en) * 2021-09-02 2021-12-03 贵州钢绳股份有限公司 Steel wire paying-off tension device and using method thereof
CN114314136A (en) * 2021-12-30 2022-04-12 厦门艾美森新材料科技股份有限公司 Damping control method and system for film winding support rod and inflatable heat sealing machine

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