CN219238876U

CN219238876U - Tension-adjustable conveying device

Info

Publication number: CN219238876U
Application number: CN202223425869.XU
Authority: CN
Inventors: 赵健
Original assignee: Shanghai Telue Precision Edm Machine Tools Co ltd
Current assignee: Shanghai Telue Precision Edm Machine Tools Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-23
Anticipated expiration: 2032-12-20

Abstract

The application discloses a tension-adjustable delivery device for adjusting the tension of a filament, such as an electrical wire, during delivery. The tension-adjustable processing device comprises a workbench, a retractable member, a tension adjusting assembly and a controller. Further, the table includes a moving portion and a fixed portion, the moving portion being slidably mounted to the fixed portion up and down. The retractable member comprises a retractable cylinder, a driving wheel piece and at least one conveying wheel piece. The retraction cylinder and the transfer wheel are rotatably mounted to the fixed portion. The moving wheel member is rotatably mounted to the moving portion, and respective axial directions of the retractable cylinder, the moving wheel member, and the conveying wheel member are parallel to each other. The electric wire is wound on the winding and unwinding cylinder, then the electric wire is wound on the driving wheel piece, and finally the electric wire is wound on the conveying wheel piece again. Preferably, the folding and unfolding member further comprises at least one steering wheel.

Description

Tension-adjustable conveying device

Technical Field

The utility model relates to the technical field of conveying devices, in particular to a tension-adjustable conveying device.

Background

With the advancement and development of society, hand-made has been gradually replaced by automated processing. For example, in automated processing of filaments, the filaments are typically transported by a transport device to transport the filaments to a processing location for processing.

The existing conveying device is simple in structure, the conveying device can only play a simple conveying role in the process of conveying the filaments, tension of the filaments in the conveying process cannot be adjusted, and however, the filaments have high requirements on tension in the conveying process. If the tension applied to the filaments during the process of conveying the filaments is too great, the filaments may deform under force, even break when serious, and the filaments are difficult to repair after breaking, which may affect the subsequent processing of the filaments.

Furthermore, if the filaments are under too little tension during their transport, the filaments may be left in a relaxed state during their transport. In this way, loose filaments are very susceptible to intertwining during transport, knots occurring, and the subsequent processing of the filaments is likewise affected.

Disclosure of Invention

One advantage of the present utility model is that it provides a tension-adjustable delivery device, by which the tension of the filaments during delivery can be automatically adjusted during delivery of the filaments, avoiding breakage of the filaments due to excessive tension experienced during delivery of the filaments, or avoiding knots due to excessive tension experienced during delivery of the filaments.

One advantage of the utility model is that the tension-adjustable conveying device is provided, and the tension applied to the filaments in the conveying process can be displayed by the tension-adjustable conveying device in the conveying process of the filaments, so that the filaments are convenient for operators to observe in real time.

One advantage of the utility model is that it provides a tension-adjustable delivery device that can automatically adjust the tension in the delivery of filaments by providing a simple structure, reducing costs.

To achieve at least one of the above advantages, the present utility model provides a tension-adjustable delivery device for adjusting tension of a filament during delivery, the tension-adjustable delivery device comprising:

a controller;

the workbench comprises a moving part and a fixed part, wherein the moving part is arranged on the fixed part in a vertically sliding way;

the receiving and releasing component comprises a receiving and releasing cylinder, a driving wheel piece and at least one conveying wheel piece, wherein the receiving and releasing cylinder and the conveying wheel piece are rotatably arranged on the fixed part, the driving wheel piece is rotatably arranged on the moving part, and the axial directions of the receiving and releasing cylinder, the driving wheel piece and the conveying wheel piece are mutually parallel;

the tension adjusting assembly comprises a belt moving component and a force transducer, wherein the force transducer is in communication connection with the controller, the belt moving component is controllably connected with the controller, the belt moving component is installed on the moving part and can drive the moving part to move up and down, the force transducer is installed on the moving part, and the force transducer is arranged to detect the pressure value received by the moving part.

According to an embodiment of the present utility model, the retraction member further includes at least one steering wheel rotatably mounted to the fixing portion, and the steering wheel and the transfer wheel are vertically distributed.

According to an embodiment of the present utility model, the retraction member further includes a first driving member, the first driving member is mounted on the fixing portion, and the retraction barrel is drivably connected to the first driving member, and the first driving member is configured to drive the retraction barrel to rotate.

According to an embodiment of the present utility model, the driving wheel member includes a first rotating shaft and a first guide wheel, the first guide wheel is sleeved on the first rotating shaft, the first rotating shaft and the first guide wheel axially overlap, the first rotating shaft is rotatably mounted on the moving portion, and the first guide wheel has a first annular groove formed along a radial direction.

According to an embodiment of the present utility model, the conveying wheel member includes a second rotating shaft and a second guide wheel, the second guide wheel is sleeved on the second rotating shaft, the second rotating shaft and the second guide wheel axially overlap, the second rotating shaft is rotatably mounted on the fixing portion, and the second guide wheel has a second annular groove formed along a radial direction.

According to an embodiment of the present utility model, the steering wheel member includes a third rotating shaft and a third guide wheel, the third guide wheel is sleeved on the third rotating shaft, the third rotating shaft and the third guide wheel axially overlap, the third rotating shaft is rotatably mounted on the fixing portion, and the third guide wheel has a third annular groove formed along a radial direction.

According to an embodiment of the present utility model, the belt moving member is implemented to include a second driving member, a rotating screw rod, a moving body, and a guide rail, the rotating screw rod is drivably connected to the second driving member, the second driving member is configured to drive the rotating screw rod to rotate clockwise and counterclockwise, the moving body is screw-connected to the rotating screw rod, the moving body is slidably installed to the guide rail up and down, the second driving member is installed to the fixed portion, the moving portion is installed to the moving body, the guide rail is installed to the fixed portion and extends in a vertical direction, and the second driving member is controllably connected to the controller.

According to an embodiment of the utility model, the tension-adjustable transmission device further comprises a display communicatively connected to the load cell, the display being arranged to display the pressure value measured by the load cell.

According to an embodiment of the present utility model, the tension-adjustable transmission device further includes a switch assembly, the switch assembly includes a turn-up switch and a turn-down switch, the turn-down switch is electrically connected to the second driving member, and the turn-up switch and the turn-down switch are controllably connected to the controller.

According to an embodiment of the present utility model, the winding and unwinding drum has a predetermined length, and the winding and unwinding drum has a paying-off portion and a winding portion, and the winding portion integrally extends from the paying-off portion.

Drawings

Fig. 1 shows a schematic diagram of a tension-adjustable conveyor according to the utility model.

Fig. 2 shows a schematic view of a partial structure of the tension-adjustable conveyor according to the utility model.

Fig. 3 shows a partial schematic view of another angle of the tension-adjustable conveyor according to the utility model.

Fig. 4 shows a schematic view of a situation of the tension-adjustable conveyor according to the utility model.

Fig. 5 shows a schematic view of a situation in another state of the tension-adjustable conveyor according to the utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

With reference to fig. 1-5, a tension-adjustable delivery device for adjusting the tension of a filament, such as a wire, during delivery in accordance with a preferred embodiment of the present utility model will be described in detail below. The tension-adjustable processing apparatus includes a table 10, a retractable member 20, a tension adjustment assembly 30, and a controller 40.

Further, the table 10 includes a moving portion 11 and a fixed portion 12, and the moving portion 11 is slidably mounted to the fixed portion 12 up and down.

The retractable member 20 includes a retractable barrel 21, a wheel member 22, and at least one transfer wheel member 23. The retractable cylinder 21 and the transfer wheel 23 are both rotatably mounted to the fixed portion 12. The movable wheel 22 is rotatably mounted to the movable portion 11, and the respective axial directions of the retractable cylinder 21, the movable wheel 22, and the conveying wheel 23 are parallel to each other.

Preferably, the driving wheel 22 is disposed between the accommodating cylinder 21 and the conveying wheel 23, and the connecting lines of the driving wheel 22, any one of the conveying wheel 23 and the axial center of the accommodating cylinder 21 form a triangle. Preferably, two of the transfer wheel members 23 are provided, the two transfer wheel members 23 are spaced apart by a predetermined distance, and the two transfer wheel members 23 are disposed at the same horizontal plane.

The wire is wound on the winding and unwinding drum 21, then the wire is wound on the driving wheel member 22, and finally the wire is wound on the conveying wheel member 23.

Preferably, the retractable member 20 further comprises at least one steering wheel 24. The direction-adjusting wheel 24 is mounted on the fixed portion 12, and the direction-adjusting wheel 24 and the transfer wheel 23 are vertically distributed on the fixed portion 12 to adjust the direction of the wire transferred through the transfer wheel 23.

Specifically, the wire wound to the transfer wheel 23 is rewound to the direction-adjusting wheel 24, and finally the wire is rewound in the winding and unwinding drum 21.

In other words, when the winding and unwinding drum 21 rotates, the wire is discharged from the winding and unwinding drum 21, then conducted through the driving wheel member 22, the transmitting wheel member 23 and the steering wheel member 24, and finally wound on the winding and unwinding drum 21.

Preferably, the steering wheel 24 is provided with four steering wheels 24, and the four steering wheels 24 are formed on the same side of the transfer wheel 23, so that the wire is wound to the transfer wheel 23 and then wound to the steering member 24. Preferably, the retractable member 20 further comprises a first driving element 25. The first driving member 25 is mounted to the fixing portion 12, and the winding and unwinding drum 21 is drivably connected to the first driving member 25 to drive the winding and unwinding drum 21 to rotate at a high speed by the first driving member 25 to wind and unwind the wire.

It should be noted that the retraction cylinder 21 has a predetermined length. Thus, the wire can be uniformly wound around the surface of the winding and unwinding drum 21. More preferably, the winding and unwinding drum 21 has a wire releasing portion 211 and a wire winding portion 212, wherein the wire winding portion 212 is formed by extending the wire releasing portion 211, and when the wire is released from the wire releasing portion 211 and then conducted through the driving wheel member 22, the conveying wheel member 23 and the steering wheel member 24, the wire is finally wound on the wire winding portion 212, so that the wire winding of the wire releasing and winding portions is avoided during the wire releasing and winding process.

As will be appreciated by those skilled in the art, in another embodiment, the wire, which is conducted through the steering wheel member 24, may also be wound onto a take-up reel, the winding and unwinding drum 21 is not required to be rewound, and the description thereof is omitted.

Specifically, the driving wheel 22 includes a first rotating shaft 221 and a first guiding wheel 222. The first guide wheel 222 is sleeved on the first rotating shaft 221, and the first rotating shaft 221 and the first guide wheel 222 axially coincide. The first rotation shaft 221 is rotatably mounted to the moving part 11.

Preferably, the first guide wheel 222 has a first annular groove 22201 formed along a radial direction, the wire wound around the first guide wheel 222 is wound around the first annular groove 22201, and the wire is limited by the first annular groove 22201, so that the wire is prevented from slipping during the wire unwinding or winding process and is separated from the first guide wheel 222.

Specifically, the conveying wheel 23 includes a second rotating shaft 231 and a second guide wheel 232, the second guide wheel 232 is sleeved on the second rotating shaft 231, and the second rotating shaft 231 and the second guide wheel 232 axially overlap. The second rotating shaft 231 is rotatably mounted to the fixed part 12.

Preferably, the second guide wheel 232 has a second annular groove 23201 formed in a radial direction. The wire wound around the second guide wheel 232 is wound to the second annular groove 23201, and the wire wound around the second guide wheel 232 is also limited, so that the wire is prevented from slipping and separating from the second guide wheel 232 in the wire unwinding or winding process.

Specifically, the steering wheel 24 includes a third rotating shaft 241 and a third guide wheel 242, the third guide wheel 242 is sleeved on the third rotating shaft 241, and the third rotating shaft 241 and the third guide wheel 242 axially overlap. The third rotating shaft 241 is rotatably mounted to the fixed portion 12.

Preferably, the third guide pulley 242 has a third annular groove 24201 formed in a radial direction. The wire wound around the third guide wheel 242 is wound around the third annular groove 24201, so that the wire is prevented from slipping off the third guide wheel 242 during the wire unwinding or winding process.

Specifically, the first rotation shaft 221, the second rotation shaft 231, and the third rotation shaft 241 are axially parallel.

Referring to fig. 2 to 5, further, the tension adjusting assembly 30 includes a belt moving member 31 and a load cell 32, the belt moving member 31 is mounted on the moving portion 11, and the belt moving member 31 is configured to drive the moving portion 11 to move up and down. The load cell 32 is attached to the moving part 11, and the load cell 32 is provided so as to be able to detect a pressure value received by the moving part 11. The load cell 32 is communicatively coupled to the controller 40 and the belt moving member 31 is controllably coupled to the controller 40.

It will be appreciated by those skilled in the art that the tension applied to the wire wound around the first guide roller 222 is applied to the first guide roller 222, and the first guide roller 222 is mounted on the first rotating shaft 221, so that it is converted into a pressure value applied to the first rotating shaft 221, and the first rotating shaft 221 is mounted on the moving part 11, so that it is finally converted into a pressure value applied to the moving part 11. Therefore, the measurement of the pressure value received by the moving part 11 by the load cell 32 corresponds to the indirect measurement of the tension applied to the wire.

When the load cell 32 detects that the pressure value received by the moving part 11 exceeds a preset value, it indicates that the tension value received by the wire during the conveying process is too large. Similarly, when the load cell 32 detects that the pressure value received by the moving part 11 is lower than a preset value, it indicates that the tension value received by the wire during the conveying process is too small. In an embodiment, the belt moving member 31 is implemented to include a cylinder to the moving end of which the moving portion 11 is mounted. The cylinder is controllably connected to the controller 40, and the moving end of the cylinder is used to drive the moving part 11 to move. This embodiment is not shown in the figures.

When the pressure value received by the moving part 11 during operation exceeds a preset pressure value, the tension received by the wire needs to be adjusted to be small, and when the pressure value received by the moving part 11 during operation is smaller than the preset pressure value, the tension received by the wire needs to be adjusted to be large so as to ensure that the tension balance is always kept during the wire conveying process.

Thus, when the force sensor 32 transmits the detected pressure value data to the controller 40, and the controller 40 receives that the pressure value detected by the force sensor 32 is too large and exceeds a predetermined pressure value, the controller 40 controls the belt moving member 31 to move the moving part 11 vertically toward the side close to the winding and unwinding drum 21. And further, the driving wheel member 22 mounted on the moving portion 11 is driven to move synchronously, and the electric wire wound around the driving wheel member 22 is loosened, so that the tension value of the electric wire is reduced, and breakage caused by overlarge tension of the electric wire in the wire feeding or wire receiving process is avoided.

When the controller 40 receives that the pressure value detected by the load cell 32 is too small and smaller than a predetermined pressure value, the controller 40 controls the belt moving member 31 to drive the moving part 11 to move vertically toward a side far from the winding and unwinding drum 21. And further, the driving wheel member 22 mounted on the moving portion 11 is driven to move synchronously, and the electric wire wound to the driving wheel member 22 is tensioned, so that the tension value of the electric wire is increased, and winding or knotting caused by too small tension of the electric wire in the wire feeding or wire receiving process is avoided.

Referring to fig. 2 to 3, in an embodiment, the belt moving member 31 is implemented to include a second driving part 311, a rotating screw 312, a moving body 313 and a guide rail 314, the rotating screw 312 is drivably connected to the second driving part 311, the second driving part 311 is configured to drive the rotating screw 312 to rotate clockwise and counterclockwise, the moving body 313 is screwed to the rotating screw 312, and the moving body 313 is slidably mounted to the guide rail 314 up and down. The second driving member 311 is mounted to the fixed portion 12, the moving portion 11 is mounted to the moving body 313, the guide rail 314 is mounted to the fixed portion 12 and extends in a vertical direction, and the second driving member 311 is controllably connected to the controller 40.

As will be appreciated by those skilled in the art, in another embodiment, the moving body 313 may be formed by extending the moving part 11.

Specifically, the wire is wound around the first guide wheel 222, the load cell 32 detects a pressure value received by the moving part 11 and transmits the detected data to the controller 40, and the controller 40 receives the pressure value detected by the load cell 32. When the pressure value detected by the load cell 32 is too large and exceeds a predetermined pressure value, the controller 40 controls the second driving member 311 to drive the rotating screw 312 to rotate and drive the moving body 313 to move along the guide rail 314 in a vertical direction toward the retraction cylinder 21. The moving part 11 is mounted on the moving body 313, so that the moving part 11 is driven to move synchronously along the vertical direction approaching to the winding and unwinding drum 21, and further the moving wheel 22 mounted on the moving part 11 is driven to move synchronously, the electric wire wound around the moving wheel 22 is loosened, the tension value of the electric wire is reduced, and the electric wire is prevented from breaking due to overlarge tension.

When the controller 40 receives that the pressure value detected by the load cell 32 is too small and smaller than the minimum preset pressure value, the controller 40 controls the second driving piece 311 to drive the rotating screw 312 to reversely rotate, and drives the moving body 313 to vertically move along the guide rail 314 in a direction away from the retraction cylinder 21. The moving part 11 is mounted on the moving body 313, so that the moving part 11 is driven to move synchronously along a vertical direction far away from the winding and unwinding drum 21, the driving wheel piece 22 mounted on the moving part 11 is driven to move synchronously, the electric wire wound on the driving wheel piece 22 is tensioned, the tension value of the electric wire is increased, and the phenomenon that the electric wire is wound or knotted when the tension of the electric wire is too small in the wire feeding or winding process is avoided.

In other words, the tension-adjustable conveying device automatically adjusts the tension value of the electric wire in the conveying process according to the pressure value detected by the load cell 32, so as to avoid the influence of excessive or insufficient tension on the conveying of the electric wire in the conveying process.

Further, the tension-adjustable transmission device further comprises a display 50, wherein the display 50 is communicatively connected to the load cell 32, so that the pressure value measured by the load cell 32 can be displayed through the display 50, and an operator can conveniently observe the tension value of the wire in fact.

Further, the tension-adjustable transmission device further includes a switch assembly 60, and the switch assembly 60 is configured to adjust a maximum predetermined pressure value and a minimum predetermined pressure value to which the moving portion 11 is subjected. The switch assembly 60 is mounted to the fixed portion 12.

Specifically, the switch assembly 60 includes a turn-up switch 61 and a turn-down switch 62, the turn-up switch 61 is electrically connected to the second driving member 311, and the turn-up switch 61 is controllably connected to the controller 40 for adjusting the distance that the second driving member 311 drives the moving portion 11 to move. The small-adjustment switch 62 is electrically connected to the second driving member 311, and the small-adjustment switch 62 is controllably connected to the controller 40 for adjusting the distance that the second driving member 311 drives the moving portion 11 to move.

That is, by regulating the turn-up switch 61 and the turn-down switch 62, and transmitting a signal to the controller 40. In the process of conveying the wires, the tension-adjustable conveying device is characterized in that the force sensor 32 detects the pressure value of the moving part 11, the controller 40 receives the pressure detected by the force sensor 32, and then the controller 40 controls the belt moving member 31 to move upwards or downwards so as to drive the moving part 11 mounted on the belt moving member 31 to synchronously move upwards or downwards, and finally drives the driving wheel 22 mounted on the moving part 11 to synchronously move upwards or downwards.

In this way, when the wires made of different materials are replaced and conveyed, the preset pressure value of the wires in the wire feeding or wire receiving process can be set according to the different materials of the wires, so that the controller 40 is utilized to control the moving wheel 22 to move different distances so as to adjust the tension value of the wires made of different materials.

The working method of the tension-adjustable conveying device is provided, and mainly comprises the following steps:

(A) The electric wire is wound on the winding and unwinding drum 21, then the electric wire is wound on the driving wheel member 22, and finally the electric wire is wound on the conveying wheel member 23 for conveying;

(B) The force sensor 32 measures the pressure value of the moving part 11, and transmits the measured data to the controller 40, and the controller 40 receives the data of the force sensor 32 and controls the belt moving member 31 to drive the moving part 11 to move correspondingly in the vertical direction.

Further, the working method of the tension-adjustable conveying device further comprises the following steps:

(C) The display 50 displays the pressure value of the load cell 32.

(B1) The controller 40 receives the pressure value detected by the force sensor 32, when the pressure value is too large and exceeds a maximum preset pressure value, the controller 40 controls the belt moving component 31 to drive the moving part 11 to move vertically towards the direction approaching the winding and unwinding drum 21, the electric wire is loosened, and the tension value of the electric wire is reduced;

(B2) The controller 40 receives the pressure value detected by the load cell 32, and when the pressure value is too small and smaller than a minimum preset pressure value, the controller 40 controls the belt moving member 31 to drive the moving part 11 to move vertically in a direction away from the winding and unwinding drum 21, and the wire is tensioned.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. A tension-adjustable delivery device for adjusting the tension of a filament during delivery, the tension-adjustable delivery device comprising:

a controller;

2. The tension-adjustable transmission device as recited in claim 1, wherein the retractable member further comprises at least one steering wheel rotatably mounted to the fixed portion, and wherein the steering wheel and the transmission wheel are disposed one above the other.

3. The tension-adjustable transfer device of claim 1 or 2, wherein the retraction member further comprises a first drive member mounted to the fixed portion and the retraction barrel is drivably connected to the first drive member, the first drive member being configured to drive the retraction barrel to rotate.

4. A tension adjustable transmission apparatus according to claim 3, wherein the wheel member comprises a first shaft and a first guide wheel, the first guide wheel is sleeved on the first shaft, the first shaft and the first guide wheel axially overlap, the first shaft is rotatably mounted on the moving part, and the first guide wheel has a first annular groove formed in a radial direction.

5. The adjustable tension conveyor of claim 4, wherein the conveyor wheel comprises a second shaft and a second guide wheel, the second guide wheel is sleeved on the second shaft, the second shaft and the second guide wheel axially overlap, the second shaft is rotatably mounted on the fixed portion, and the second guide wheel has a second annular groove formed along a radial direction.

6. The tension-adjustable transmission device as claimed in claim 2, wherein the steering wheel member comprises a third rotating shaft and a third guide wheel, the third guide wheel is sleeved on the third rotating shaft, the third rotating shaft and the third guide wheel are axially overlapped, the third rotating shaft is rotatably mounted on the fixing portion, and the third guide wheel has a third annular groove formed along the radial direction.

7. The tension-adjustable transmission device according to claim 6, wherein the belt moving member is implemented to include a second driving member, a rotating screw, a moving body, and a guide rail, the rotating screw being drivably connected to the second driving member, the second driving member being provided to drive the rotating screw to rotate clockwise and counterclockwise, the moving body being threadedly connected to the rotating screw, the moving body being slidably installed to the guide rail up and down, the second driving member being installed to the fixed portion, the moving portion being installed to the moving body, the guide rail being installed to the fixed portion and extending in a vertical direction, the second driving member being controllably connected to the controller.

8. The tension-adjustable transmission of claim 7, further comprising a display communicatively coupled to the load cell, the display configured to display the pressure value measured by the load cell.

9. The adjustable tension conveyor of claim 8, further comprising a switch assembly, the switch assembly comprising a turn-up switch and a turn-down switch, and the turn-down switch each being electrically connected to the second drive member, and the turn-up switch and the turn-down switch each being controllably connected to the controller.

10. The tension-adjustable transfer device of claim 1, wherein the take-up and pay-off cartridge has a predetermined length, the take-up and pay-off cartridge having a pay-off section and a take-up section, the take-up section integrally extending from the pay-off section.