Tension bracket capable of automatically adjusting tension

Abstract

The utility model belongs to the technical field of extrusion auxiliary equipment, and particularly relates to a tension bracket capable of automatically adjusting tension. The spring tension control mechanism comprises a moving roller in sliding connection with the rack and a spring connected with the rack and the moving roller; the magnetic powder tension control mechanism comprises a fixed roller arranged on the rack and a magnetic powder control piece arranged on the rack; wherein the magnetic powder control piece is suitable for driving the fixed roller to rotate; and the magnetic powder control piece is suitable for obtaining tension data and controlling the rotating speed of the fixed roller so as to keep the tension stable, and the tension bracket capable of automatically adjusting the tension achieves the effect of accurately and stably controlling the pay-off tension by combining two modes of spring tension control and magnetic powder tension control.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion auxiliary equipment, and particularly relates to a tension frame capable of automatically adjusting tension. Background Art

[0002] During the production of extrusion equipment, the pay-off tension needs to be adjusted. The existing tension frame adopts a single spring tension control or magnetic powder tension control. The original magnetic powder tension control mainly adjusts the output torque and controls the size of the torque by controlling the excitation current to achieve the effect of compensating the tension, so that the tension is kept within a stable range, thereby controlling the output adjustment system tension of the magnetic powder brake.

[0003] However, the magnetic powder tension generated by this method can only adjust the tension size and cannot solve the problem of unstable pay-off tension caused by unstable wiring. As long as the wire with slightly poor pay-off and wiring arrangement is produced, the unstable pay-off will cause the wire diameter of the produced product to exceed the tolerance and become scrap. This tension control method leads to unstable product quality and ultimately leads to a significant increase in company costs.

[0004] Therefore, in order to solve the above problems, it is necessary to design a tension frame that automatically adjusts the tension. Utility Model Content

[0005] The utility model aims to provide a tension frame which can automatically adjust the tension, so as to solve the technical problem of unstable wire pay-off of the existing tension equipment.

[0006] In order to solve the above technical problems, the utility model provides a tension frame for automatically adjusting tension, comprising:

[0007] frame;

[0008] A spring tension control mechanism includes: a moving roller slidably connected to the frame, and a spring connected to the frame and the moving roller;

[0009] The magnetic powder tension control mechanism comprises: a fixed roller arranged on the frame and a magnetic powder control member arranged on the frame; wherein

[0010] The magnetic powder control member is suitable for driving the fixed roller to rotate; and

[0011] The magnetic powder control component is suitable for acquiring tension data and controlling the rotation speed of the fixed roller to keep the tension stable.

[0012] Furthermore, the frame is provided with a pneumatic tension control mechanism;

[0013] The pneumatic tension control mechanism includes: a support arm hinged to the frame, an adjusting roller provided at the other end of the support arm, and a telescopic member hinged to the frame;

[0014] The telescopic end of the telescopic member is hinged to the support arm;

[0015] The telescopic member is adapted to adjust the position of the adjusting roller on the support arm during telescoping to adjust the wire pay-off tension.

[0016] Further, the fixed roller includes: a first rotating shaft bearing-connected to the frame;

[0017] The magnetic powder control member includes: a second rotating shaft bearing-connected to the frame;

[0018] The magnetic powder tension control mechanism further includes: a first sprocket sleeved on the first rotating shaft, a second sprocket sleeved on the second rotating shaft, a chain for driving the first sprocket and the second sprocket, and a protective cover provided on the frame; wherein

[0019] The protective cover is adapted to protect the first sprocket, the second sprocket and the chain.

[0020] Further, the spring tension control mechanism further includes: at least two cylindrical slide rails provided on the frame, at least one slider slidably connected to the cylindrical slide rails, a connecting plate connected to the slider, and a support plate provided on the frame; wherein

[0021] The moving roller is arranged on the connecting plate; and

[0022] Both ends of the spring are respectively connected to the support plate and the connecting plate.

[0023] Further, two vertical guide rollers and two horizontal guide rollers are provided on the frame; wherein

[0024] The two vertical guide rollers and the two horizontal guide rollers are adapted to limit the wire.

[0025] Further, at least two first guide grooves are provided on the moving roller;

[0026] At least three second guide grooves are provided on the fixed roller.

[0027] Further, a control box is provided on the frame; wherein

[0028] The control box is electrically connected to the magnetic powder control member and the telescopic member.

[0029] The beneficial effects of the present utility model are:

[0030] (1). Through three tension control methods including the magnetic powder tension control mechanism, the spring tension control mechanism and the pneumatic tension control mechanism, since the effective stroke range of the spring tension control mechanism is small and cannot achieve full coverage, a pneumatic tension control mechanism is designed to make up for the design defect, realizing comprehensive, precise and flexible adjustment of the wire tension. Each mechanism works together to ensure a stable wire pay-off tension under different production conditions, thereby improving the product quality and production efficiency.

[0031] Other features and advantages of the present utility model will be described in the subsequent specification, and in part, will be obvious from the specification, or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0032] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specifically provides preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0033] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 is a perspective view of the preferred embodiment of the overall front view of the present utility model;

[0035] Figure 2 is a perspective Figure 1 ;

[0036] Figure 3 is a perspective view of the preferred embodiment of the overall top view of the present utility model;

[0037] Figure 4 is a perspective Figure 2 .

[0038] In the figure:

[0039] Frame 1;

[0040] Spring tension control mechanism 2, moving roller 21, first guide groove 211, spring 22, cylindrical slide rail 23, slider 24, connecting plate 25, support plate 26;

[0041] Magnetic powder tension control mechanism 3, fixed roller 31, first rotating shaft 311, second guide groove 312, magnetic powder control member 32, second rotating shaft 321, first sprocket 33, second sprocket 34, chain 35, protective cover 36;

[0042] Pneumatic tension control mechanism 4, support arm 41, adjusting roller 42, telescopic member 43;

[0043] Vertical guide roller 5, horizontal guide roller 6, control box 7. Detailed Embodiments

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0045] As Figures 1 to 4 shown, this embodiment provides a tension rack for automatically adjusting tension, including:

[0046] A frame 1; a spring tension control mechanism 2, which includes: a moving roller 21 slidably connected to the frame 1, and a spring 22 connected to the frame 1 and the moving roller 21; a magnetic powder tension control mechanism 3, which includes: a fixed roller 31 provided on the frame 1 and a magnetic powder control member 32 provided on the frame 1; wherein the magnetic powder control member 32 is adapted to drive the fixed roller 31 to rotate; and the magnetic powder control member 32 is adapted to obtain tension data and control the rotation speed of the fixed roller 31 to maintain stable tension; wherein the magnetic powder control member 32 employs, but is not limited to, a magnetic powder clutch or a magnetic powder brake.

[0047] An air pressure tension control mechanism 4 is provided on the frame 1; the air pressure tension control mechanism 4 includes: a support arm 41 hinged to the frame 1, an adjusting roller 42 provided at the other end of the support arm 41, and a telescopic member 43 hinged to the frame 1; wherein the telescopic end of the telescopic member 43 is hinged to the support arm 41; the telescopic member 43 is adapted to adjust the position of the adjusting roller 42 on the support arm 41 during telescoping to adjust the wire release tension; wherein the telescopic member 41 preferably employs a cylinder.

[0048] In this embodiment, by hinging the support arm 41 to the frame 1, it is allowed to swing up and down. By hinging the telescopic member 43 to the frame 1, it is allowed to swing up and down. At the same time, the telescopic end of the telescopic member 43 is hinged to the support arm 41, enabling them to rotate relative to each other. When it is necessary to increase the wire tension, the telescopic member 43 retracts, pushing the support arm 41 to swing downward, causing the adjusting roller 42 to move downward and press the wire tightly; conversely, when it is necessary to reduce the tension, the telescopic member 43 extends, the support arm 41 swings upward, and the adjusting roller 42 relaxes the wire. Through the above steps, the effects of quick response and precise control are achieved.

[0049] The fixed roller 31 includes: a first rotating shaft 311 that is connected to the machine frame 1 by bearings; the magnetic powder control member 32 includes: a second rotating shaft 321 that is connected to the machine frame 1 by bearings; the magnetic powder tension control mechanism 3 further includes: a first sprocket 33 sleeved on the first rotating shaft 311, a second sprocket 34 sleeved on the second rotating shaft 321, a chain 35 for driving the first sprocket 33 and the second sprocket 34, and a protective cover 36 provided on the machine frame 1; wherein the protective cover 36 is adapted to protect the first sprocket 33, the second sprocket 34, and the chain 35.

[0050] In this embodiment, the magnetic powder control member 32 is filled with magnetic powder. By adjusting the magnitude of the current, the strength of the magnetic field is controlled, and further the frictional force between the magnetic powders is changed. The first sprocket 33 and the second sprocket 34 are respectively sleeved on the first rotating shaft 311 and the second rotating shaft 321, and are driven by the chain 35 to ensure that the power of the magnetic powder control member 32 can be transmitted to the fixed roller 31, so as to realize the control of the rotation speed of the fixed roller 31 to maintain the stability of the wire tension.

[0051] The spring tension control mechanism 2 further includes: at least two cylindrical slide rails 23 provided on the machine frame 1, at least one slider 24 slidably connected to the cylindrical slide rails 23, a connecting plate 25 connected to the slider 24, and a support plate 26 provided on the machine frame 1; wherein the moving roller 21 is arranged on the connecting plate 25; and both ends of the spring 22 are respectively connected to the support plate 26 and the connecting plate 25; wherein by providing the cylindrical slide rails 23, the effect of limiting the slider 24 is achieved.

[0052] In this embodiment, when the wire passes through the moving roller 21, the tension of the wire acts on the moving roller 21, and then is transmitted to the slider 24 through the connecting plate 25. The slider 24 slides on the cylindrical slide rails 23 and adjusts its position according to the change of the wire tension. The spring 22, as an elastic element, is connected to the support plate 26 at one end and the connecting plate 25 at the other end. When the position of the moving roller 21 changes, the spring 22 will generate a corresponding elastic force to balance the tension of the wire. When the wire tension increases, the moving roller 21 stretches the spring 22 to generate elastic deformation. When the wire tension decreases, the spring 22 deforms and rebounds, pulling the moving roller 21 to move in the reverse direction, so as to achieve the relative stability of maintaining the tension.

[0053] Two vertical guide rollers 5 and two horizontal guide rollers 6 are provided on the machine frame 1; wherein the two vertical guide rollers 5 and the two horizontal guide rollers 6 are adapted to limit the wire; by providing the two vertical guide rollers 5 and the two horizontal guide rollers 6, the wire is limited to ensure its stable movement on the machine frame 1 and prevent deviation from the path.

[0054] At least two first guide grooves 211 are provided on the moving roller 21; at least three second guide grooves 312 are provided on the fixed roller 31; by providing a plurality of first guide grooves 211 and a plurality of second guide grooves 312, the contact points are increased, which helps to more evenly disperse the tension and pressure on the wire, avoiding wire damage or breakage caused by excessive local stress; at the same time, the position of the wire can be better fixed, reducing the shaking and deviation of the wire during transmission, thereby improving the stability of the production process.

[0055] A control box 7 is provided on the frame 1; wherein the control box 7 is electrically connected to the magnetic powder control member 32 and the telescopic member 43; by providing the control box 7, the effect of receiving sensor data and sending control instructions to realize the automatic adjustment of tension is achieved.

[0056] In summary, the present utility model adopts three tension control methods, namely the magnetic powder tension control mechanism 3, the spring tension control mechanism 2, and the pneumatic tension control mechanism 4. Since the effective stroke range of the spring tension control mechanism 2 is small and cannot achieve full coverage, the pneumatic tension control mechanism 4 is designed to make up for the design defect, realizing comprehensive, precise, and flexible adjustment of the wire tension. Each mechanism works together to ensure a stable wire release tension under different production conditions, thereby improving the product quality and production efficiency.

[0057] All the devices (components without specific structures) selected in this application are common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0058] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0059] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling, direct coupling, or communication connection between each other can be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0061] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0062] In addition, in each embodiment of the present utility model, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0063] Taking the above-mentioned ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A tension frame for automatically adjusting tension, characterized in that, Comprising: A frame (1); A spring tension control mechanism (2), which includes: a moving roller (21) slidably connected to the frame (1), and a spring (22) connected to the frame (1) and the moving roller (21); A magnetic powder tension control mechanism (3), which includes: a fixed roller (31) provided on the frame (1) and a magnetic powder control member (32) provided on the frame (1); wherein The magnetic powder control member (32) is adapted to drive the fixed roller (31) to rotate; and The magnetic powder control member (32) is adapted to obtain tension data and control the rotation speed of the fixed roller (31) to maintain stable tension.

2. The tension frame for automatically adjusting tension according to claim 1, characterized in that An air pressure tension control mechanism (4) is provided on the frame (1); The air pressure tension control mechanism (4) includes: a support arm (41) hinged to the frame (1), an adjusting roller (42) provided at the other end of the support arm (41), and a telescopic member (43) hinged to the frame (1); wherein The telescopic end of the telescopic member (43) is hinged to the support arm (41); The telescopic member (43) is adapted to adjust the position of the adjusting roller (42) on the support arm (41) during telescoping to adjust the wire release tension.

3. The tension frame for automatically adjusting tension according to claim 2, characterized in that The fixed roller (31) includes: a first rotating shaft (311) bearing-connected to the frame (1); The magnetic powder control member (32) includes: a second rotating shaft (321) bearing-connected to the frame (1); The magnetic powder tension control mechanism (3) further includes: a first sprocket (33) sleeved on the first rotating shaft (311), a second sprocket (34) sleeved on the second rotating shaft (321), a chain (35) for driving the first sprocket (33) and the second sprocket (34), and a protective cover (36) provided on the frame (1); wherein The protective cover (36) is adapted to protect the first sprocket (33), the second sprocket (34) and the chain (35).

4. The tension frame for automatically adjusting tension according to claim 3, characterized in that The spring tension control mechanism (2) further includes: at least two cylindrical slide rails (23) provided on the frame (1), at least one slider (24) slidably connected to the cylindrical slide rails (23), a connecting plate (25) connected to the slider (24), and a support plate (26) provided on the frame (1); wherein The moving roller (21) is arranged on the connecting plate (25); and Both ends of the spring (22) are respectively connected to the support plate (26) and the connecting plate (25).

5. The tension frame for automatically adjusting tension according to claim 4, characterized in that Two vertical guide rollers (5) and two horizontal guide rollers (6) are provided on the frame (1); wherein The two vertical guide rollers (5) and the two horizontal guide rollers (6) are adapted to limit the wire.

6. The tension frame for automatically adjusting tension according to claim 5, characterized in that At least two first guide grooves (211) are provided on the moving roller (21); At least three second guide grooves (312) are provided on the fixed roller (31).

7. The tension rack for automatically adjusting tension according to claim 6, wherein a control box (7) is provided on the frame (1); among which the control box (7) is electrically connected to the magnetic powder control member (32) and the telescopic member (43).

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