Winding and tensioning device

Abstract

The utility model relates to the technical field of tensioning, in particular to a rolling and tensioning device. The tensioning device comprises a lever capable of swinging back and forth around a horizontal shaft, the lever takes the horizontal shaft as a fulcrum, rod bodies on two sides of the fulcrum on the lever are respectively a resistance rod and a power rod, the outer end of the resistance rod is provided with a tensioning guide wheel, the axis of the tensioning guide wheel is parallel to the horizontal shaft, and the rod body of the power rod is provided with a balancing weight. The gravity of the balancing weight forms power for prying the resistance rod to turn upwards and enabling the tensioning guide wheel to abut against materials, and the balancing weight can be adjusted in a sliding mode in the length direction of the power rod. The tensioning device can still keep the tensioning force stable after being used for a long time; besides, after the tensioning force is adjusted according to materials with different tensioning force requirements, the position of the tensioning wheel cannot be changed, and a technical platform is provided for a follow-up detection unit to detect the real-time position of the tensioning wheel and control and adjust the rolling speed in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning, in particular to a winding and tensioning device. Background Art

[0002] During the winding process of materials such as wires or strips, a tensioning device is often provided on the winding path of the material to tighten the wires or strips, thereby ultimately ensuring that the material is tightly wound around the winding roller.

[0003] Most traditional tensioning mechanisms rely on springs to squeeze rollers to elastically press against the material, so that the material can be tightened during the winding process. Most of its main structures are as described in the text of a winding device with automatic tension adjustment, which is named CN211569554U in China. An adjusting wheel is connected to the outer end of the telescopic rod, and a spring is set on the rod body of the telescopic rod. The spring elastically squeezes the adjusting wheel and presses against the material, and finally the material is tightened during the winding process. However, in actual implementation, the elastic force of the spring will be weakened after long-term use, which leads to the problem of insufficient tension on the material. In addition, in order to ensure that the tension on the material is in a relatively constant range, a detection component for monitoring the position of the tensioning wheel is often set in the prior art, and the controller adjusts the winding rate of the winding component in real time according to the tensioning wheel position detected by the detection component. In actual implementation, when winding different materials, the requirements for the tensioning force of the materials during the winding process are often different; because the spring needs to be compressed to different degrees to achieve elastic force changes, when changing the tensioning force of the tensioning wheel on the material, the position of the tensioning wheel will often change. The change in the position of the tensioning wheel often hinders the detection unit from detecting the position of the tensioning wheel, and ultimately affects the real-time adjustment of the winding rate of the tightening mechanism, which needs to be solved urgently. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a winding and tensioning device, which can maintain a stable tensioning force after long-term use; in addition, after adjusting the tensioning force for materials with different tensioning force requirements, the position of the tensioning wheel will not be changed, which provides a technical platform for the subsequent detection unit to detect the real-time position of the tensioning wheel and control the real-time adjustment of the winding rate.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A winding and tensioning device comprises a lever that can swing back and forth around a horizontal axis, the lever takes the horizontal axis as a fulcrum, the rod bodies on the lever located on both sides of the fulcrum are respectively a resistance rod and a power rod, the outer end of the resistance rod is equipped with a tensioning guide wheel whose axis is parallel to the horizontal axis, a counterweight block is arranged on the rod body of the power rod, the gravity of the counterweight block constitutes the power for prying the resistance rod upward to flip over and make the tensioning guide wheel press against the material, and the counterweight block can be slidably adjusted along the length direction of the power rod.

[0007] As a further solution of the utility model: a slide groove distributed along the length direction of the rod is provided on the rod body of the power rod, the counterweight block slides in the slide groove, and an adjusting screw rod is rotatably matched on the power rod. The adjusting screw rod is distributed along the length direction of the slide groove, and the adjusting screw rod passes through the counterweight block and forms a screw slider structure with the counterweight block.

[0008] As a further solution of the utility model: the counterweight block is composed of an adjusting block and a detachable block, the adjusting block and the adjusting screw rod constitute a screw rod slider structure, and the detachable block is connected to the adjusting block by a connecting bolt.

[0009] As a further solution of the utility model: the lever is swingably mounted on a vertical plate, and a fixed guide wheel with an axis parallel to the horizontal axis is also mounted on the vertical plate. The fixed guide wheel is located at one end of the lever close to the tensioning guide wheel, and the horizontal height of the axis of the fixed guide wheel is lower than the horizontal height of the axis of the tensioning guide wheel.

[0010] As a further solution of the utility model: the vertical plate is fixed on the base, and a winding mechanism is arranged on the base, the axis of the winding roller of the winding mechanism is parallel to the horizontal axis, and the horizontal height of the axis of the winding roller is lower than the horizontal height of the axis of the tensioning guide wheel.

[0011] As a further solution of the utility model: a slide rail parallel to the axis of the winding roller is arranged on the base, the winding mechanism slides on the slide rail, and a power mechanism for driving the winding mechanism to slide is also arranged on the base.

[0012] As a further solution of the utility model: the power mechanism is a screw slider mechanism.

[0013] As a further solution of the utility model: a photoelectric sensor for detecting the swing of the lever is installed on the vertical plate, the input end of the photoelectric sensor is electrically connected to the controller, and the output end of the controller is electrically connected to the winding mechanism.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The lever principle is used to use the gravity of the counterweight block as the driving force for the tensioning guide wheel to apply tensioning force to the material. Compared with the method of using spring force to drive the tensioning guide wheel to apply tensioning force to the material, gravity often does not decay over time, and can effectively keep the tensioning force applied by the tensioning guide wheel on the material stable after long-term use. In addition, the counterweight block can be slid and adjusted along the length of the power rod. When adjusting the tensioning force applied by the tensioning guide wheel on the material, there is no need to change the inclination angle of the lever. You only need to slide and adjust the counterweight block to lengthen or shorten the power arm that applies power to the counterweight block, so that the tensioning force applied by the tensioning guide wheel on the material can be increased or decreased, which provides a technical platform for the subsequent detection components to detect the real-time position of the tensioning guide wheel.

[0016] 2. By adjusting the screw rod and the counterweight block to form a screw rod slider structure, the counterweight block can be driven to slide and adjust along the length direction of the power rod by simply turning the adjusting screw rod with one hand.

[0017] 3. The counterweight block is composed of an adjustment block and a detachable block. By replacing detachable blocks of different weights, the overall weight of the counterweight block can be adjusted, thereby adjusting the maximum or minimum power value applied by the counterweight block to adapt to materials with different tensioning force requirements.

[0018] 4. The lever swing is installed on the vertical plate, and a fixed guide wheel with an axis parallel to the horizontal axis is also installed on the vertical plate; the fixed guide wheel is located at the end of the lever close to the tensioning guide wheel, and the horizontal height of the axis of the fixed guide wheel is lower than the horizontal height of the axis of the tensioning guide wheel. Through the setting of the fixed guide wheel, after the material is sent out by the processing mechanism, it passes through the lower bottom surface of the fixed guide wheel and then goes around to the upper top surface of the tensioning guide wheel, so as to ensure that the material on the side of the tensioning guide wheel close to the processing mechanism is tilted downward, thereby improving the versatility of this tensioning device.

[0019] 5. The vertical plate is fixed on the base, and a winding mechanism is arranged on the base. The axis of the winding roller of the winding mechanism is parallel to the horizontal axis, and the horizontal height of the axis of the winding roller is lower than the horizontal height of the axis of the tensioning guide wheel, thereby realizing the integrated assembly of the tensioning device and the winding mechanism.

[0020] 6. The base is provided with a slide rail parallel to the axis of the winding roller, on which the winding mechanism slides, and the base is also provided with a power mechanism for driving the winding mechanism to slide. Therefore, when winding wires or small-width strips, the winding roller can move back and forth along its own axis to make the material evenly wound around the outer periphery of the winding roller.

[0021] 7. The power mechanism is a screw slider mechanism, which has the effects of high transmission stroke and stable transmission.

[0022] 8. A photoelectric sensor for detecting the swing of the lever is installed on the vertical plate, and the input end of the photoelectric sensor is electrically connected to the controller, and the output end of the controller is electrically connected to the winding mechanism; thereby, the swing angle of the lever is detected by the photoelectric sensor, and the winding rate of the winding mechanism is controlled by the controller to ensure that the lever deflects back and forth at a certain deflection angle, thereby ensuring that the tensioning force applied by the tensioning guide wheel to the material is within the required constant range. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0025] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0026] Figure 4 It is a schematic diagram of the connection structure between the power rod and the counterweight block in the utility model.

[0027] In the figure: 10, base; 11, slide rail; 20, winding mechanism; 30, screw slider mechanism; 40, resistance rod; 41, tensioning guide wheel; 50, power rod; 51, slide groove; 52, adjusting screw; 60, counterweight block; 61, adjusting block; 62, detachable block; 63, connecting bolt; 70, vertical plate; 80, fixed guide wheel; 90, photoelectric sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] For ease of understanding, the specific structure and working mode of the utility model are further described below in conjunction with the accompanying drawings:

[0030] The specific structure of the utility model refers to Figure 1-4As shown, its main structure includes a tensioning guide wheel 41 that rotates upward with a lever and contacts the material. Specifically, the lever can swing back and forth around the horizontal axis, and the lever takes the horizontal axis as the fulcrum. The rod bodies on the lever located on both sides of the fulcrum are respectively a resistance rod 40 and a power rod 50; the outer end of the resistance rod 40 is equipped with a tensioning guide wheel 41 whose axis is parallel to the horizontal axis, and a counterweight block 60 is arranged on the rod body of the power rod 50. The gravity of the counterweight block 60 constitutes the power to pry the resistance rod 40 upward and make the tensioning guide wheel 41 contact the material. The lever principle is adopted, and the gravity of the counterweight block 60 is used as a driving force for the tensioning guide wheel 41 to apply tensioning force to the material. Compared with the method of using spring elastic force to drive the tensioning guide wheel 41 to apply tensioning force to the material, gravity often does not decay over time, and can effectively keep the tensioning force applied by the tensioning guide wheel 41 to the material stable after long-term use. In addition, the counterweight block 60 can be slidably adjusted along the length direction of the power rod 50. When adjusting the tensioning force applied by the tensioning guide wheel 41 on the material, there is no need to change the inclination angle of the lever. It is only necessary to slide the counterweight block 60 to lengthen or shorten the power arm that applies power to the counterweight block 60, thereby increasing or decreasing the tensioning force applied by the tensioning guide wheel 41 on the material, thereby providing a technical platform for subsequent detection components to detect the real-time position of the tensioning guide wheel 41.

[0031] Specifically, Figure 4 As shown, a slide groove 51 distributed along the length direction of the rod is provided on the rod body of the power rod 50, and the counterweight block 60 slides in the slide groove 51. The power rod 50 is rotatably matched with an adjusting screw rod 52, which is distributed along the length direction of the slide groove 51, and the adjusting screw rod 52 passes through the counterweight block 60 and forms a screw slider structure with the counterweight block 60. When adjusting, only one hand needs to turn the adjusting screw rod 52 to drive the counterweight block 60 to slide and adjust along the length direction of the power rod 50.

[0032] Furthermore, the counterweight block 60 is composed of an adjustment block 61 and a detachable block 62. The adjustment block 61 and the adjustment screw 52 form a screw slider structure, and the detachable block 62 is connected to the adjustment block 61 via a connecting bolt 63. By replacing the detachable block 62 of different weights, the overall weight of the counterweight block 60 can be adjusted, thereby adjusting the maximum or minimum power value applied by the counterweight block 60 to adapt to materials with different tensioning force requirements.

[0033] Of course, the counterweight 60 can also be slidably adjusted along the length of the power rod 50 in other forms, such as a set screw threadedly connected to the counterweight 60, with the end of the set screw pressed against the power rod 50 to lock the counterweight 60 after sliding adjustment.

[0034] In addition, since the materials on both sides of the tensioning guide wheel 41 often need to extend downwards so that the tensioning guide wheel 41 can apply tensioning force to the materials; and after the materials are unwound by the unwinding mechanism, they often need to be processed by the processing mechanism and then rewound by the rewinding mechanism 20, and the height of the material discharge end of the processing mechanism is often higher than the height of the tensioning guide wheel 41. Therefore, in order to ensure the adaptability of the tensioning device, Figure 1 As shown, the lever is swingably mounted on the vertical plate 70, and a fixed guide wheel 80 whose axis is parallel to the horizontal axis is also mounted on the vertical plate 70; the fixed guide wheel 80 is located at one end of the lever close to the tensioning guide wheel 41, and the horizontal height of the axis of the fixed guide wheel 80 is lower than the horizontal height of the axis of the tensioning guide wheel 41. Through the arrangement of the fixed guide wheel 80, after the material is sent out from the processing mechanism, it passes through the lower bottom surface of the fixed guide wheel 80 and then goes around to the upper top surface of the tensioning guide wheel 41, so as to ensure that the material on the side of the tensioning guide wheel 41 close to the processing mechanism is tilted downward, thereby improving the versatility of the tensioning device.

[0035] Further, such as Figure 1 As shown, the vertical plate 70 is fixed on the base 10, and a winding mechanism 20 is arranged on the base 10. The axis of the winding roller of the winding mechanism 20 is parallel to the horizontal axis, and the horizontal height of the axis of the winding roller is lower than the horizontal height of the axis of the tensioning guide wheel 41, thereby realizing the integrated assembly of the tensioning device and the winding mechanism 20.

[0036] It is worth mentioning that Figure 3 As shown, a slide rail 11 parallel to the axis of the winding roller is provided on the base 10, and the winding mechanism 20 slides on the slide rail 11. The base 10 is also provided with a power mechanism for driving the winding mechanism 20 to slide. Therefore, when winding the wire or small-width strip, the winding roller moves back and forth along its own axis, so that the material can be evenly wound around the outer periphery of the winding roller.

[0037] Specifically, the power mechanism is a screw slider mechanism 30, which has the effect of high transmission stroke and stable transmission. Of course, in the specific implementation, a straight-stroke transmission structure such as a cylinder or a hydraulic cylinder can also be used.

[0038] On the basis of the above, if Figure 2 As shown, in this application, the position change of the tension guide wheel 41 is mainly reflected in the angle of the lever rotation. Therefore, a photoelectric sensor 90 for detecting the swing of the lever is installed on the vertical plate 70, and the input end of the photoelectric sensor 90 is electrically connected to the controller, and the output end of the controller is electrically connected to the winding mechanism 20; thus, the swing angle of the lever is detected by the photoelectric sensor 90, and the winding rate of the winding mechanism 20 is controlled by the controller to ensure that the lever reciprocates at a certain deflection angle, thereby making the tensioning force applied by the tension guide wheel 41 to the material within the required constant range.

[0039] Of course, for those skilled in the art, the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0041] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A winding and tensioning device, characterized in that: The utility model comprises a lever which can swing back and forth around a horizontal axis, the lever takes the horizontal axis as a fulcrum, the rod bodies on the lever located on both sides of the fulcrum are respectively a resistance rod (40) and a power rod (50), the outer end of the resistance rod (40) is provided with a tensioning guide wheel (41) whose axis is parallel to the horizontal axis, and a counterweight block (60) is arranged on the rod body of the power rod (50), the gravity of the counterweight block (60) constitutes the power for prying the resistance rod (40) to flip upward and make the tensioning guide wheel (41) press against the material, and the counterweight block (60) can be slidably adjusted along the length direction of the power rod (50).

2. A winding and tensioning device according to claim 1, characterized in that: The power rod (50) is provided with a slide groove (51) distributed along the length direction of the rod, and the counterweight block (60) slides in the slide groove (51). The power rod (50) is rotatably matched with an adjusting screw rod (52), which is distributed along the length direction of the slide groove (51). The adjusting screw rod (52) passes through the counterweight block (60) and forms a screw slider structure with the counterweight block (60).

3. A winding and tensioning device according to claim 2, characterized in that: The counterweight block (60) is composed of an adjusting block (61) and a detachable block (62); the adjusting block (61) and the adjusting screw rod (52) form a screw rod slider structure; the detachable block (62) is connected to the adjusting block (61) via a connecting bolt (63).

4. A winding and tensioning device according to any one of claims 1 to 3, characterized in that: The lever is swingably mounted on the vertical plate (70), and a fixed guide wheel (80) whose axis is parallel to the horizontal axis is also mounted on the vertical plate (70). The fixed guide wheel (80) is located at one end of the lever close to the tensioning guide wheel (41), and the horizontal height of the axis of the fixed guide wheel (80) is lower than the horizontal height of the axis of the tensioning guide wheel (41).

5. A winding and tensioning device according to claim 4, characterized in that: The vertical plate (70) is fixed on the base (10), and a winding mechanism (20) is arranged on the base (10). The axis of the winding roller of the winding mechanism (20) is parallel to the horizontal axis, and the horizontal height of the axis of the winding roller is lower than the horizontal height of the axis of the tensioning guide wheel (41).

6. A winding and tensioning device according to claim 5, characterized in that: The base (10) is provided with a slide rail (11) parallel to the axis of the winding roller, the winding mechanism (20) slides on the slide rail (11), and the base (10) is also provided with a power mechanism for driving the winding mechanism (20) to slide.

7. A winding and tensioning device according to claim 6, characterized in that: The power mechanism is a screw-slider mechanism (30).

8. A winding and tensioning device according to claim 4, characterized in that: A photoelectric sensor (90) for detecting the swing of the lever is installed on the vertical plate (70); the input end of the photoelectric sensor (90) is electrically connected to the controller, and the output end of the controller is electrically connected to the winding mechanism (20).

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