CN218145000U - Pay-off rack device for steel cord line unfolding - Google Patents
Pay-off rack device for steel cord line unfolding Download PDFInfo
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- CN218145000U CN218145000U CN202222258553.XU CN202222258553U CN218145000U CN 218145000 U CN218145000 U CN 218145000U CN 202222258553 U CN202222258553 U CN 202222258553U CN 218145000 U CN218145000 U CN 218145000U
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Abstract
The utility model relates to the technical field of steel cord processing, in particular to a pay-off rack device for steel cord line unfolding, which comprises an installation bracket; the pay-off reel is arranged on the mounting bracket and used for unwinding the steel cord, and the pay-off reel is coaxially connected with the driving wheel; the magnetic tensioner is mounted on the mounting bracket and is coaxially connected with the driven wheel; and the conveying belt is sleeved on the outer walls of the driving wheel and the driven wheel. When the rotational speed of drawing drum is when changing, the pressure that the conveyer belt was applyed for the take-up pulley can change, transmit signal for the controller after sensing the pressure increase through the pressure sensor who sets up, controller control magnetism tensioner conversion torque changes the increase damping force, control is slowed down from driving wheel rotational speed, and then slow down through conveyer belt control action wheel rotational speed, again because of action wheel and drawing drum coaxial coupling, thereby can be according to unwrapping wire tension size, adjust the rotational speed of drawing drum, make the rotational speed of drawing drum tend to steadily.
Description
Technical Field
The utility model relates to a steel cord processing technology field particularly relates to a pay off rack device that is used for steel cord exhibition line.
Background
The steel cord is a thin steel strand or rope which is made of high-quality high-carbon steel, has brass plated on the surface and has special purposes. The method is mainly used for car tires, light truck tires, heavy truck tires, engineering machinery vehicle tires, airplane tires and other rubber product framework materials, and generally adopts a pay-off rack for wiring in a wiring (wire spreading) stage in the processing process of steel cords.
Pay off rack among the prior art generally is provided with the tensioning wheel and adjusts the rate of tension of wire exhibition line in-process, but the take-up pulley is single to carry out the tensioning to the wire rod through the elastic pressure of spring, and can not be according to the rotational speed regulation tension size of wire rod rolling.
In order to control the pay-off speed of a pay-off rack according to the tension and enable a steel cord to be in proper tension in the process of routing, a brake disc used for controlling the rotating speed of the pay-off disc is usually added on the pay-off rack at present, and a brake pad is easy to wear and slip in actual use, so that frequent wire jumping occurs when the steel cord is routed due to speed variation in the process of machining.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pay off rack device for steel cord exhibition line to prior art's defect, include:
mounting a bracket;
the pay-off reel is mounted on the mounting bracket and used for unwinding the steel cord, and the pay-off reel is coaxially connected with the driving wheel;
the magnetic tensioner is mounted on the mounting bracket and is coaxially connected with the driven wheel;
the conveying belt is sleeved on the outer walls of the driving wheel and the driven wheel, so that the driving wheel is used as the driving wheel to drive the driven wheel to rotate;
a tension equalizing mechanism including a tension wheel connected to an outer wall of the conveyor belt and mounted to the mounting bracket to place the conveyor belt in tension;
a controller;
the tension wheel is connected with the mounting bracket through the magnetic tensioner, the pressure sensor is used for detecting the pressure of the conveyor belt extruding the tension wheel, the pressure sensor is electrically connected with the controller, and the controller is electrically connected with the magnetic tensioner.
Preferably, a mounting box is fixed on the mounting bracket, and defines that the tensioning wheel is located at a first position at the bottom end of the mounting box and at a second position at the top end of the mounting box, the tensioning wheel slides linearly on the mounting box through a guide, and when the conveyor belt is tightened, the tensioning wheel can move from the first position to the second position.
Preferably, the guide member includes a sliding groove provided in the mounting box, and the tension wheel linearly slides in the sliding groove through a slider.
Preferably, the guide member includes an optical axis inserted into the mounting box from top to bottom, and the tension wheel slides linearly along the optical axis through a slider.
Preferably, the guide member includes a sliding groove formed in the mounting box and an optical axis inserted into the mounting box from top to bottom, the direction of the sliding groove corresponds to the mounting position of the optical axis, and the tensioning wheel linearly slides along the optical axis and the sliding groove through a sliding block.
Preferably, an elastic connecting piece is fixed at the top end of the sliding block, the sliding block is defined to be at a third position at the bottom end of the guide piece, a fourth position at the top end of the guide piece, and the sliding block can be automatically reset to the third position from the fourth position through the elastic connecting piece.
Preferably, the resilient connecting member comprises a coil spring.
Preferably, the pressure sensor is fixedly mounted on the tension wheel.
Preferably, the pay-off spool is an I-shaped spool.
Preferably, the conveyer belt is the hold-in range, the action wheel with from the driving wheel be with hold-in range assorted gear.
Compared with the prior art, the utility model has the advantages of:
when the rotational speed of drawing drum varies, the conveyer belt is exerted and can be taken place the change for the pressure of take-up pulley, transmit signal gives the controller after sensing the pressure increase through the pressure sensor who sets up, controller control magnetic tensioner conversion moment of torsion change increase damping force, thereby control slows down from driving wheel rotational speed, and then slow down through conveyer belt control action wheel rotational speed, again because of action wheel and drawing drum coaxial coupling, thereby can be according to unwrapping wire tension size, adjust the rotational speed of drawing drum, the rotational speed that makes the drawing drum tends towards steadily, avoid because of drawing drum speed variation, lead to the steel cord to appear the wire jumper at the exhibition line in-process.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a pay-off stand device for steel cord unwinding shown in the embodiment of the present invention;
fig. 2 is an electric control diagram of the embodiment of the present invention;
fig. 3 is a schematic front sectional view of a tension wheel according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the time and pressure of the rotation speed change of the pay-off reel in the embodiment of the present invention.
In the figure, 10, mounting bracket; 20. a pay-off reel; 30. a magnetic tensioner; 41. a driving wheel; 42. a conveyor belt; 43. a driven wheel; 50. a tension balancing mechanism; 501. a cavity; 51. mounting a box; 52. an optical axis; 54. a slider; 55. an elastic connecting member; 56. a tension wheel; 57. a pressure sensor; 60. and a controller.
Detailed Description
For a better understanding of the technical aspects of the present invention, specific embodiments are described below in conjunction with the appended drawings.
Referring to fig. 1 to 3, a pay-off stand device for steel cord unwinding mainly includes a mounting bracket 10, a pay-off reel 20, a magnetic tensioner 30, a transmission mechanism 40, a tension balancing mechanism 50, and a controller 60.
Paying-off damping mechanism
The pay-off damping mechanism is composed of a mounting bracket 10, a pay-off reel 20, a magnetic tensioner 30 and a transmission mechanism 40 and aims to provide damping for the pay-off reel 20 in the pay-off process.
The mounting bracket 10 is a supporting leg structure arranged on the pay-off stand, is made of metal alloy, and is used for mounting the pay-off reel 20, the magnetic tensioner 30, the tension balancing mechanism 50 and the like.
The pay-off reel 20 is a spool, specifically, the spool is set to be cylindrical, a disc-shaped baffle is arranged on one side of the spool, and a spool is formed on the surface of the cylindrical spool; the spool is provided with an axial hole in its center and is placed on the shaft of the mounting bracket 10 so that the spool can rotate relative to the mounting bracket 10.
Further, the drawing drum 20 is coaxially connected with a driving wheel 41, the steel cord is wound on the drawing drum 20, and when the drawing of the steel cord is performed by an external driving device, the drawing of the steel cord is used for driving the drawing drum 20 to rotate, so that the driving wheel 41 coaxially connected with the drawing drum 20 is driven to rotate.
Referring to fig. 1, the magnetic tensioner 30 is mounted on the mounting bracket 10 through a triangular support, and is disposed on both sides of the mounting bracket 10 separately from the reel 20, and a driven wheel 43 is coaxially connected to one side of the magnetic tensioner 30.
The magnetic tensioner 30 is a tension control device that generates damping by converting torque variation through a magnetic field without mechanical friction, and for example, the controller 60 can change the magnitude of magnetic damping of the magnetic tensioner 30, so that the driven wheel 43 generates different rotational resistance.
Further, the driving wheel 41 and the driven wheel 43 are connected through a transmission belt 42 sleeved on the outer wall of the driving wheel 41 and the outer wall of the driven wheel 43, the transmission belt 42 is a synchronous belt, the driving wheel 41 and the driven wheel 43 are gears matched with the synchronous belt, so the pay-off reel 20 drives the driving wheel 41 to rotate, and the driving wheel 41 can drive the driven wheel 43 to rotate through the transmission belt 42.
In an alternative embodiment, the tensioner 56 is a cylindrical structure that presses against the outer wall of the belt 42 and has a cross-sectional area that is twice the width of the belt 42; of course, the cross-sectional area is not limited to be twice the width of the conveyor belt 42, and the width may be selected as long as it is wider than the width of the conveyor belt 42 according to the actual use requirement.
Preferably, the tensioning wheel 56 is provided with an annular clamping groove which is formed by inwards sinking, and the cross-sectional area of the annular clamping groove is slightly larger than that of the conveying belt 42, so that the limiting effect on the conveying belt 42 can be achieved, and the conveying belt 42 is prevented from deviating from the tensioning wheel 56.
Damping adjusting mechanism
The damping adjusting mechanism mainly comprises a tension balancing mechanism 50 and a controller 60, and aims to control the damping change of the magnetic tensioner 30 according to the speed change of the pay-off reel 20 so as to inhibit the rotating speed variation of the pay-off reel 20.
The pressure with which the belt 42 presses the tension pulley 56 changes due to the change in the rotation speed of the reel 20, and the tension pulley 56 is provided with a pressure sensor 57 for detecting the pressure change.
In an alternative embodiment, when the rotation speed of the pay-off reel 20 changes suddenly, for example, it becomes faster suddenly, the transmission belt 42 is tensioned, and the tension becomes stronger after the tension is tightened, so that the pressure detected by the pressure sensor 57 becomes stronger, which is used as the feedback of the speed change or change.
Further, as shown in fig. 2, the output end of the pressure sensor 57 is electrically connected with the controller 60, and the output end of the controller 60 is electrically connected with the magnetic tensioner 30.
Optionally, a pressure sensor 57 is installed on a bearing of the tension pulley 56, and when the pressure sensor 57 detects that the pressure of the conveyor belt 42 pressing the tension pulley 56 changes, the pressure signal is transmitted to the controller 60, and the controller 60 controls the damping force of the magnetic tensioner 30 to change.
For example, when the pressure of the pressure sensor 57 increases, the controller 60 controls the magnetic tensioner 30 to increase the damping force. This increases the rotational resistance of driven pulley 43 coaxially connected to magnetic tensioner 30, and makes it difficult to increase the rotational speed of reel 20, thereby stabilizing the rotational speed.
When the rotating speed of the pay-off reel 20 tends to be stable, the pressure sensor 57 detects that the pressure of the conveyor belt 42 extruding the tension pulley 56 changes, the pressure signal is transmitted to the controller 60, the controller 60 controls the magnetic tensioner 30 to reduce the damping force, the resistance is reduced, the rotating resistance of the driven wheel 43 coaxially connected with the magnetic tensioner 30 is reduced, and the rotating speed of the pay-off reel 20 tends to be stable.
As an alternative example, the time and pressure curve of the change in the rotation speed of the payout reel as shown in fig. 4 defines that at time T1, the rotation speed of the payout reel 20 is stable, and the pressure at which the belt 42 presses the tension pulley 56 is P1.
At the time T2, the rotation speed of the pay-off reel 20 is increased, the pressure of the transmission belt 42 on the tensioning wheel 56 is P2, the transmission belt 42 is tensioned and straightened along with the increase of the rotation speed of the pay-off reel 20, at this time, P2> P1, the pressure detected by the pressure sensor 57 is increased, and the controller 60 receives the pressure signal of the pressure sensor 57 in real time. If Δ P = P2-P1>0 during one sensing period, controller 60 sends a control command to magnetic tensioner 30 to control magnetic tensioner 30 to increase the damping force in accordance with the amount of increase in pressure Δ P. As an alternative example, the detection period may be configured or adjusted according to the actual production scenario, for example, the detection period is defined as 5s.
In an alternative embodiment, the damping force increment and the pressure increment are in a linear corresponding relationship, so that the rotational resistance of the driven wheel 43 coaxially connected with the magnetic tensioner 30 is increased, the rotational speed of the pay-off reel 20 is reduced, in the process, the pressure detected by the pressure sensor 57 is gradually reduced from P2 to P1, the damping force of the magnetic tensioner 30 is gradually restored to the original state, and the rotational speed of the pay-off reel 20 gradually tends to be stable (close to the preset rotational speed).
Defining that at time T3, the rotation speed of the pay-off reel 20 is stable, and the pressure of the transmission belt 42 pressing the tension wheel 56 is P3, where P3= P1.
If the rotation speed of the pay-off reel 20 is reduced at the time point T4, the transmission belt 42 is loosened as the rotation speed of the pay-off reel 20 is reduced, the pressure P4< P3 of the transmission belt 42 pressing the tension pulley 56 at this time becomes smaller, the pressure detected by the pressure sensor 57 becomes smaller, the controller 60 detects the pressure input signal of the pressure sensor 57 in real time, and the controller 60 sends a control command to the magnetic tensioner 30 to control the magnetic tensioner 30 to reduce the damping force according to the pressure reduction amount Δ P within one detection period.
In an alternative embodiment, the damping force reduction amount and the pressure reduction amount are in a linear corresponding relationship, the rotation resistance of the driven wheel 43 is reduced, so that the rotation speed of the pay-off reel 20 is accelerated, in the process, the pressure detected by the pressure sensor 57 is gradually increased from P4 to P4, the damping force of the magnetic tensioner 30 is gradually restored to the original state, and the rotation speed of the pay-off reel 20 gradually tends to be stable (close to the preset rotation speed).
Defining that the rotation speed of the pay-off reel 20 is stable at the time point T5, the pressure of the driving belt 42 pressing the tension pulley 56 is P5, and at this time, P5= P1= P3, and the magnetic tensioner 30 does not act.
Therefore, the speed variation of the pay-off reel 20 can be inhibited through the closed-loop control, the phenomenon that a steel cord wire jumps due to overlarge tension in the pay-off process is avoided, and the stability of the pay-off of the steel cord wire is improved.
Installation of tension pulley example 1
As shown in fig. 1 and fig. 3, a mounting box 51 is fixed on the mounting bracket 10, and the mounting box 51 is detachably connected with the mounting bracket 10, so as to facilitate later-stage disassembly, assembly and replacement, for example, by using bolts.
The tensioning wheel 56 is defined to be at a first position at the bottom end of the mounting box 51 and at a second position at the top end of the mounting box 51, the tensioning wheel 56 slides linearly on the mounting box 51 through a guide, and when the conveyor belt 42 is tensioned, the tensioning wheel 56 can move from the first position to the second position, so that tensioning adjustment of the conveyor belt 42 is realized.
Further, the guiding member includes a sliding slot 511 opened on the mounting box 51, the tensioning wheel 56 slides linearly in the sliding slot 511 through the sliding block 54, the sliding block 54 is connected with the sliding slot 511 in a sliding manner, and the tensioning wheel 56 is connected with the sliding block 54 in a threaded manner, so that the linear movement of the sliding block 54 in the sliding slot 511 can drive the tensioning wheel 56 to slide linearly along the sliding slot 511, thereby realizing the position change of the tensioning wheel 56 between the first position and the second position.
Installation example 2 of tension pulley
The difference from embodiment 1 is that the guide includes an optical axis 52 inserted into the mounting box 51 from top to bottom, the tensioning wheel 56 slides linearly along the optical axis 52 through the slider 54, a through hole matched with the optical axis 52 is formed in the inner side of the slider 54, the optical axis 52 penetrates through the through hole to realize sliding connection between the slider 54 and the optical axis 52, and the tensioning wheel 56 is in threaded connection with the slider 54, so that the slider 54 moves linearly along the optical axis 52 to drive the tensioning wheel 56 to slide linearly along the optical axis 52, thereby realizing position change of the tensioning wheel 56 between the first position and the second position.
Installation example 3 of tension pulley
The difference from embodiment 1-2 is that the guide comprises a sliding slot 511 opened on the mounting box 51 and an optical axis 52 inserted into the mounting box 51 from top to bottom, the opening direction of the sliding slot 511 corresponds to the mounting position of the optical axis 52, and the tension wheel 56 slides linearly along the optical axis 52 and the sliding slot 511 through the slide block 54.
The side edge of the sliding block 54 is connected with the sliding groove 511 in a sliding mode, the sliding block is sleeved on the optical shaft 52 through a through hole formed in the inner side of the sliding block and is connected with the optical shaft 52 in a sliding mode, the tensioning wheel 56 is in threaded connection with the front side of the sliding block 54, the optical shaft 52 is arranged in the position, right opposite to the middle of the sliding groove 511, therefore, the sliding block 54 can drive the tensioning wheel 56 to slide linearly along the sliding groove 511 and the optical shaft 52, and the tensioning wheel 56 can move linearly more stably.
In order to allow the tension roller 56 to elastically move on the mounting box 51 and to always apply a downward pressing force to the belt 42, an elastic connecting member 55 is fixed to the tip of the slider 54.
The slide block 54 is defined as a first position at the bottom end of the guide piece, and a second position at the top end of the guide piece, the slide block 54 can be automatically reset to the first position from the second position through the elastic connecting piece 55, so that the position change of the tension wheel 56 can be automatically adjusted according to the change of the tightness of the conveyor belt 42, and the tension wheel 56 is always pressed on the outer wall of the conveyor belt 42.
Specifically, the elastic connecting member 55 is a coil spring having an elastic deformation amount compressed up and down, and the elastic pressure of the coil spring compressed up and down is used to make the tension pulley 56 always apply a downward pressing force to the transmission belt 42, so that the transmission belt 42 is too loose or too tight, the tension pulley 56 always presses down to the outer side of the transmission belt 42, and the elastic pressure of the coil spring is used to ensure that the transmission belt 42 is in a tension state.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (10)
1. The utility model provides a pay off rack device for steel cord exhibition line which characterized in that includes:
a mounting bracket (10);
the pay-off reel (20) is mounted on the mounting bracket (10) and used for unwinding steel cords, and the pay-off reel (20) is coaxially connected with a driving wheel (41);
a magnetic tensioner (30) mounted to the mounting bracket (10), the magnetic tensioner (30) being coaxially connected to a driven wheel (43);
the conveying belt (42) is sleeved on the outer walls of the driving wheel (41) and the driven wheel (43) to enable the driving wheel (41) to serve as the driving wheel to drive the driven wheel (43) to rotate;
a tensioner (56) connected to an outer wall of the conveyor belt (42) and mounted to the mounting bracket (10) to place the conveyor belt (42) in tension;
a controller (60);
wherein a pressure sensor (57) is arranged between the tensioning wheel (56) and the mounting bracket (10), the pressure sensor (57) is used for detecting the pressure of the conveyor belt (42) pressing the tensioning wheel (56), the pressure sensor (57) is electrically connected with the controller (60), and the controller (60) is electrically connected with the magnetic tensioner (30).
2. The pay-off stand device for steel cord uncoiling according to claim 1, wherein a mounting box (51) is fixed on the mounting bracket (10), and the tensioning wheel (56) is defined as a first position when being positioned at the bottom end of the mounting box (51) and a second position when being positioned at the top end of the mounting box (51), and the tensioning wheel (56) slides linearly on the mounting box (51) through a guide member, and the tensioning wheel (56) can move from the first position to the second position when the conveyor belt (42) is tightened.
3. Pay-off stand device for steel cord payoff according to claim 2, characterized in that said guide comprises a sliding slot (511) opened on said mounting box (51), said tensioning wheel (56) slides linearly inside said sliding slot (511) by means of a sliding block (54).
4. The pay-off stand device for steel cord payoff according to claim 2, wherein said guide comprises an optical axis (52) inserted into said mounting box (51) from top to bottom, said tensioning wheel (56) slides linearly along said optical axis (52) by means of a slider (54).
5. The pay-off stand device for steel cord uncoiling according to claim 2, wherein the guiding member comprises a sliding slot (511) opened on the mounting box (51) and an optical axis (52) inserted into the mounting box (51) from top to bottom, the opening direction of the sliding slot (511) corresponds to the mounting position of the optical axis (52), and the tension wheel (56) slides linearly along the optical axis (52) and the sliding slot (511) through a sliding block (54).
6. Pay-off stand device for steel cord payoff according to claim 3 or 4 or 5, characterized in that the top end of the slider (54) is fixed with an elastic connection member (55) defining the third position of the slider (54) at the bottom end of the guide and the fourth position at the top end of the guide, the slider (54) being automatically resettable from the fourth position to the third position by the elastic connection member (55).
7. Pay-off stand device for steel cord payoff according to claim 6, characterized in that said elastic connection member (55) comprises a helical spring.
8. Pay-off stand device for steel cord payoff according to claim 1, characterized in that said pressure sensor (57) is fixedly mounted on said tensioning wheel (56).
9. Pay-off stand device for steel cord payoff according to claim 1, characterized in that said pay-off reel (20) is a spool.
10. The pay-off stand device for steel cord uncoiling according to claim 1, wherein the conveyor belt (42) is a synchronous belt, and the driving pulley (41) and the driven pulley (43) are both gears matched with the synchronous belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222258553.XU CN218145000U (en) | 2022-08-26 | 2022-08-26 | Pay-off rack device for steel cord line unfolding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222258553.XU CN218145000U (en) | 2022-08-26 | 2022-08-26 | Pay-off rack device for steel cord line unfolding |
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| Publication Number | Publication Date |
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| CN218145000U true CN218145000U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222258553.XU Active CN218145000U (en) | 2022-08-26 | 2022-08-26 | Pay-off rack device for steel cord line unfolding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285796A (en) * | 2022-08-26 | 2022-11-04 | 张家港市骏马钢帘线有限公司 | Pay-off rack device for steel cord unfolding |
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2022
- 2022-08-26 CN CN202222258553.XU patent/CN218145000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285796A (en) * | 2022-08-26 | 2022-11-04 | 张家港市骏马钢帘线有限公司 | Pay-off rack device for steel cord unfolding |
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