A tensioner based on force applied by a cylinder

Abstract

The utility model discloses a kind of tensioner based on the tension of cylinder exerted force, including tension rod and pay-off wheel, the tension rod is fixed on the pivot, the tension rod one end is provided with outgoing line guide pulley, other end is connected with cylinder one end shaft, the other end of the cylinder is connected with base plate shaft, the pivot is set on base plate and is connected with angle sensor, the pay-off wheel is connected with driving motor, the driving motor is fixed on base plate, the base plate on the periphery of driving motor is also provided with several auxiliary guide pulleys, at least one auxiliary guide pulley is provided with pressure sensor;Proportioning valve is also provided between the cylinder and gas source, and the proportioning valve is used to control the size of cylinder air intake amount.The utility model can be adjusted tension according to cylinder pressure value on line, need not to replace accessory, and applicability is wide.

Description

Technical Field

[0001] This utility model relates to the field of material processing and control technology, specifically to a tensioner based on the force applied by a cylinder. Background Technology

[0002] A tensioner is a device used to precisely control the tension of materials (such as wires, yarns, films, strips, etc.) during processing or transmission. Its core function is to ensure the stability, quality and efficiency of material processing. Structurally, existing tensioners all adopt a spring structure, which cleverly utilizes the elastic force generated by spring deformation to precisely adjust the tension.

[0003] Due to the use of springs, constant force springs are generally selected to ensure the stability of the force. This makes the tension of the tensioner non-adjustable. In different application scenarios, the spring needs to be replaced to achieve the desired effect, which reduces the flexibility of use and affects production efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a tensioner based on the force applied by a cylinder, which can adjust the tension online according to the cylinder pressure value, without the need to replace parts, and has wide applicability.

[0005] To solve the above-mentioned technical problems, this utility model provides a tensioner based on the force applied by a cylinder, including a tension rod and a wire feeding wheel. The tension rod is fixed on a rotating shaft. One end of the tension rod is provided with a wire guide wheel, and the other end is axially connected to one end of a cylinder. The other end of the cylinder is axially connected to a base plate. The rotating shaft is set on the base plate and connected to an angle sensor. The wire feeding wheel is connected to a drive motor. The drive motor is fixed on the base plate. Several auxiliary guide wheels are also provided on the base plate around the drive motor, and at least one auxiliary guide wheel is provided with a pressure sensor.

[0006] A proportional valve is also provided between the cylinder and the air source, which is used to control the amount of air entering the cylinder.

[0007] Furthermore, the cylinder is a single-acting cylinder.

[0008] Furthermore, the wire feeding reel is provided with auxiliary guide wheels on both the wire feeding side and the wire output side, with at least two auxiliary guide wheels on the wire output side, and a pressure sensor is provided on one of the auxiliary guide wheels.

[0009] Furthermore, both the lead-out guide wheel and the auxiliary guide wheel adjacent to the lead-out guide wheel are pulley block structures, and an anti-derailment part is provided on one side of the auxiliary guide wheel adjacent to the lead-out guide wheel.

[0010] Furthermore, the end of the rotating shaft is provided with a C-shaped groove, and a clamping screw is provided at the opening of the C-shaped groove. The tension rod passes through the C-shaped groove, and a connecting sleeve is provided at the end of the tension rod. A lateral fastening screw is provided on the surface of the connecting sleeve for the tension rod end to be tightly fixed inside the connecting sleeve. The connecting sleeve is connected to the cylinder shaft.

[0011] Furthermore, the substrate is provided with an inlet guide ring and a wire clamping mechanism. The inlet guide ring is a ceramic structure and is fixed to the substrate by a base. The wire clamping mechanism is located in the inlet direction and is used to clean the wire.

[0012] Furthermore, the wire clamping mechanism includes a fixed base, a first felt layer, a second felt layer, a movable base, and a reaction plate arranged sequentially. Two guide connecting posts are provided between the fixed base and the reaction plate. The fixed base and the first felt layer are fixedly connected. The fixed base is mounted on the base plate. The second felt layer and the movable base are fixedly connected. The second felt layer and the movable base are sleeved on the two guide connecting posts. A clamping screw is provided on the reaction plate. The clamping screw is threadedly connected to the reaction plate and its end abuts against the movable base. The first felt layer and the second felt layer cooperate to clamp the wire.

[0013] Furthermore, a limiting baffle is provided on the base plate on one side of the wire feeding wheel, and a protective pad is provided on the surface of the limiting baffle on one side of the wire feeding wheel.

[0014] Furthermore, two limiting blocks are provided on the base plate around the rotating shaft, and the limiting blocks are used to limit the rotation angle of the tension rod.

[0015] Furthermore, it also includes a housing, the base plate being connected to the housing, and two mounting components being provided on the housing. The mounting components include a C-shaped fixing component and a C-shaped movable component. The C-shaped fixing component is fixedly connected to the housing, and the C-shaped movable component is connected to the C-shaped fixing component by two locking screws. A spring is sleeved on the surface of the locking screw, and the spring is disposed between the C-shaped fixing component and the C-shaped movable component. A hand-tightening screw is also provided on the C-shaped fixing component.

[0016] The beneficial effects of this utility model are:

[0017] By using a cylinder as the tension power source, the use of a spring is eliminated. The cylinder, together with a proportional regulating valve, can effectively provide stable pressure. During use, the proportional regulating valve controls the air pressure supplied to the cylinder, which can also achieve real-time adjustment. No parts need to be replaced, solving the problem of the single and unadjustable spring tension, and has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is a front view schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the wire clamping mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the tension rod connection part of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of this utility model with a box body;

[0024] Figure 7 This is a schematic diagram of the installation component structure of this utility model;

[0025] Figure 8 This is a schematic diagram of the overall structure of the pulley block structure of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1 to 3 As shown, one embodiment of the tensioner based on cylinder-applied force of this utility model includes a tension rod 1 and a feed reel 2. The tension rod is fixed on a rotating shaft 3. One end of the tension rod is provided with a feed guide wheel 4, and the other end is axially connected to one end of a cylinder 5. The other end of the cylinder is axially connected to a base plate 6. The rotating shaft is mounted on the base plate and connected to an angle sensor 7. The feed reel is connected to a drive motor 8, which is fixed on the base plate. Several auxiliary guide wheels 9 are also provided on the base plate around the drive motor, and at least one auxiliary guide wheel is provided with a pressure sensor 10. A proportional valve 11 is also provided between the cylinder and the air source, and the proportional valve is used to control the amount of air entering the cylinder. Auxiliary guide wheels are provided on both the feed and feed sides of the feed reel. The number of auxiliary guide wheels on the feed side is at least two, and one of the auxiliary guide wheels is provided with a pressure sensor.

[0028] Reference Figure 3 As shown, the wire enters from the bottom, passes through two auxiliary guide rollers, wraps around the output roller, passes through two more auxiliary guide rollers, and is then led out through the output roller. The cooperation of the auxiliary guide rollers enables the pay-off roller to drive the wire, providing active power (this is existing technology and will not be described in detail). A pressure sensor on one of the auxiliary guide rollers can detect the tension of the wire to provide tension data for adjustment by the proportional valve.

[0029] In practical use, according to the set tension value, the proportional valve controls the air supply pressure of the cylinder, so that the tension rod pulls the wound wire upward taut. At the same time, the pressure sensor can detect the pressure value in real time. Based on the real-time pressure value, the proportional valve controls the air supply pressure of the cylinder in real time, thereby achieving tension balance and controlling the tension value within the set range. When the downstream equipment uses the wire, the wire is pulled, that is, a downward pulling force is applied to the wire feeding wheel. This pulling force causes one end of the tension rod to be pulled down. After being pulled down, due to the setting of the rotating shaft, the tension rod rotates around the circumference of the rotating shaft. At this time, the other end of the tension rod will drive the cylinder to extend (the extension can be activated when the force is greater than or equal to the cylinder retraction pressure), thereby achieving the effect of wire feeding with tension. The wire is in a taut state throughout the entire process. During the rotation of the shaft, the angle sensor detects angle data. When the rotation reaches the lower limit, it indicates that the wire stored in the tensioner has been released and needs to be stored again. At this time, the drive motor activates, causing the feed wheel to rotate. The feed wheel moves the wire towards the output side. Since the tension bar is in a pulled-down state, the wire released from the feed wheel will cause the tension bar to reset, thus achieving the purpose of storing wire. The reset of the tension bar will cause the shaft to reset and rotate. After the angle sensor detects that the rotation angle has reached the upper limit, the drive motor stops working.

[0030] The cylinder described above is a single-acting cylinder. A single-acting cylinder has only one air pipe connector. The air pipe connector is connected to the proportional valve through a hose. The proportional valve supplies compressed air from the air pipe connector of the single-acting cylinder. When the telescopic rod of the single-acting cylinder retracts, the supplied gas will prevent the telescopic rod from extending when the tension rod rotates along the shaft axis, thus forming rotational resistance. The structure is simple and easy to control.

[0031] Reference Figure 8 As shown, both the lead-out guide wheel and the auxiliary guide wheel adjacent to it are pulley block structures, composed of several guide wheels. This method can greatly increase the cable storage length, thereby significantly reducing the frequency of drive motor use and extending its service life in scenarios requiring rapid cable delivery. An anti-detachment part 12 is provided on one side of the auxiliary guide wheel adjacent to the lead-out guide wheel to prevent the cable from slipping out.

[0032] For wire entry, the wire surface may have dirt or contamination, which can affect subsequent processing. Refer to... Figure 4 As shown, a wire guide ring 17 and a wire clamping mechanism 18 are provided on the substrate. The wire guide ring is a ceramic structure and is fixed to the substrate by a base to ensure that the wire position does not shift and to protect the wire surface and reduce friction. The wire clamping mechanism is set in the wire inlet direction to clamp the wire and clean the wire during the movement process.

[0033] Specifically, the wire clamping mechanism includes a fixed base 19, a first felt layer 20, a second felt layer 21, a movable base 22, and a reaction plate 23 arranged sequentially. Two guide connecting posts 24 are provided between the fixed base and the reaction plate. The fixed base and the first felt layer are fixedly connected and the fixed base is mounted on the base plate. The second felt layer and the movable base are fixedly connected and the second felt layer and the movable base are sleeved on the two guide connecting posts. A clamping screw 25 is provided on the reaction plate. The clamping screw is threadedly connected to the reaction plate and its end is abutted against the movable base. The first felt layer and the second felt layer cooperate to clamp the wire. After clamping, the wire is wrapped. The movement of the wire will form a wiping action between the first felt layer and the second felt layer. The dirt on the surface of the wire is trapped on the first felt layer and the second felt layer.

[0034] In the above structure, after the wire passes through the clamping mechanism, it passes between the first felt layer and the second felt layer, and is then secured by a locking screw. Specifically, the wire passes between two guide connecting posts, which can be bolts. The bolts are directly locked onto the fixed base, and the reaction plate is fixed with the nut on the bolt. In the initial state, the locking screw is loose, and the movable base moves away from the fixed base, creating a gap between the first and second felt layers, allowing the wire to pass through easily. After the wire is laid, the locking screw is tightened, pushing the movable base toward the fixed base. During the movement, it is guided by the two guide connecting posts. Finally, the locking screw presses the movable base against the fixed base, thus pressing the first and second felt layers together.

[0035] For ease of connection between the tension bar and the shaft, refer to... Figure 5 As shown, a C-groove 13 is provided at the end of the rotating shaft, and a clamping screw 14 is provided at the opening of the C-groove. The tension rod passes through the C-groove and is clamped and fixed by tightening the clamping screw, making operation convenient. A connecting sleeve 15 is provided at the end of the tension rod, and a lateral fastening screw 16 is provided on the surface of the connecting sleeve for pressing and fixing the end of the tension rod inside the connecting sleeve, which can be quickly inserted and installed. The connecting sleeve is connected to the cylinder shaft and acts as an adapter.

[0036] Two limiting blocks 28 are provided on the base plate around the rotating shaft. The limiting blocks are used to limit the rotation angle of the tension rod, which facilitates wiring and effectively limits the rotation position of the tension rod to ensure the outlet position angle.

[0037] A limiting baffle 26 is provided on the base plate on one side of the aforementioned wire feeding wheel. A protective pad 27 is provided on the surface of the limiting baffle on one side of the wire feeding wheel. The wire and the wire feeding wheel will not wear when in contact with the protective pad. At the same time, the protective pad prevents the wire from jumping out, ensuring the stability of operation.

[0038] Based on the above structure, this application also provides a structure that is easy to install and use. Specifically, it also includes a housing 29, a base plate connected to the housing, and two mounting components 30 provided on the housing. The mounting components are used to install the equipment at the existing installation position, which makes the operation very convenient.

[0039] Specifically, this application provides a structure for installation on a rod. The installation assembly includes a C-shaped fixing member 31 and a C-shaped movable member 32. The C-shaped fixing member is fixedly connected to the box body. The C-shaped movable member is connected to the C-shaped fixing member by two locking screws 33. A spring 34 is sleeved on the surface of the locking screw. The spring is disposed between the C-shaped fixing member and the C-shaped movable member. A hand screw 35 is also provided on the C-shaped fixing member.

[0040] A spring is positioned between the C-shaped fixed part and the C-shaped movable part, and is compressed and deformed. Its deformation force pushes the two parts apart in opposite directions. This, combined with the locking screw, ensures that when the locking screw is tightened, the C-shaped movable part moves closer to the C-shaped fixed part, completing the clamping action. When the locking screw is loosened, the spring pushes the C-shaped movable part away from the C-shaped fixed part, always maintaining contact with the screw head. This ensures that the clamping space between the C-shaped fixed part and the C-shaped movable part remains at its maximum during installation, allowing for direct placement onto the rod without the need for manual support of the C-shaped movable part, making operation more convenient. Tightening the screw further tightens the rod in the clamping direction, reinforcing the fixation and ensuring a secure installation.

[0041] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A tensioner based on the force applied by a cylinder, characterized in that, The device includes a tension bar and a wire feeding reel. The tension bar is fixed on a rotating shaft. One end of the tension bar is provided with a wire guide wheel, and the other end is axially connected to one end of a cylinder. The other end of the cylinder is axially connected to a base plate. The rotating shaft is mounted on the base plate and connected to an angle sensor. The wire feeding reel is connected to a drive motor, which is fixed on the base plate. Several auxiliary guide wheels are also provided on the base plate around the drive motor, and at least one auxiliary guide wheel is provided with a pressure sensor. A proportional valve is also provided between the cylinder and the air source, which is used to control the amount of air entering the cylinder.

2. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, The cylinder is a single-acting cylinder.

3. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, The wire feeding reel is equipped with auxiliary guide wheels on both the wire feeding side and the wire output side. The number of auxiliary guide wheels on the wire output side is at least 2, and a pressure sensor is installed on one of the auxiliary guide wheels.

4. The tensioner based on cylinder-applied force as described in claim 3, characterized in that, Both the lead-out guide wheel and the auxiliary guide wheel adjacent to the lead-out guide wheel are pulley block structures, and an anti-derailment part is provided on one side of the auxiliary guide wheel adjacent to the lead-out guide wheel.

5. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, The end of the rotating shaft is provided with a C-shaped groove, and a clamping screw is provided at the opening of the C-shaped groove. The tension rod passes through the C-shaped groove and is provided with a connecting sleeve at the end of the tension rod. The surface of the connecting sleeve is provided with a lateral fastening screw for the end of the tension rod to be tightly fixed inside the connecting sleeve. The connecting sleeve is connected to the cylinder shaft.

6. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, The substrate is provided with an inlet guide ring and a wire clamping mechanism. The inlet guide ring is a ceramic structure and is fixed to the substrate by a base. The wire clamping mechanism is located in the inlet direction and is used to clean the wire.

7. The tensioner based on cylinder-applied force as described in claim 6, characterized in that, The wire clamping mechanism includes a fixed base, a first felt layer, a second felt layer, a movable base, and a reaction plate arranged sequentially. Two guide connecting posts are provided between the fixed base and the reaction plate. The fixed base and the first felt layer are fixedly connected. The fixed base is mounted on a base plate. The second felt layer and the movable base are fixedly connected. The second felt layer and the movable base are sleeved on the two guide connecting posts. A clamping screw is provided on the reaction plate. The clamping screw is threadedly connected to the reaction plate and its end abuts against the movable base. The first felt layer and the second felt layer cooperate to clamp the wire.

8. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, A limit baffle is provided on the base plate on one side of the wire feeding wheel, and a protective pad is provided on the surface of the limit baffle on one side of the wire feeding wheel.

9. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, Two limiting blocks are provided on the base plate around the rotating shaft, and the limiting blocks are used to limit the rotation angle of the tension rod.

10. The tensioner based on cylinder-applied force as described in claim 1, characterized in that, It also includes a housing, the base plate is connected to the housing, and the housing is provided with two mounting components. The mounting components include a C-shaped fixing component and a C-shaped movable component. The C-shaped fixing component is fixedly connected to the housing, and the C-shaped movable component is connected to the C-shaped fixing component by two locking screws. A spring is sleeved on the surface of the locking screw, and the spring is disposed between the C-shaped fixing component and the C-shaped movable component. A hand screw is also provided on the C-shaped fixing component.

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