Double nip roll pair full restraint shock absorbing device

Abstract

The utility model discloses a kind of double-pressing roller pair clamping type full-restraint shock absorber, comprising: base, swing bar, telescopic mechanism, first pivot and roller, the first end of material being drawn is wound in disc cylinder, the second end of material being drawn can pass from drawing die, base is set between disc cylinder and drawing die, the middle part of swing bar is swing connected in base by first pivot, and the both ends of swing bar are respectively rotationally connected with roller, telescopic mechanism is swing connected in base, and the moving end of telescopic mechanism is between first pivot and roller, material being drawn can pass between two rollers, swing bar can swing under the drive of telescopic mechanism, and two rollers can extrude material being drawn in opposite direction respectively so that material being drawn is taut.The utility model shock absorption effect is stable.

Description

Technical Field

[0001] This utility model relates to a cold-drawn shock absorption device, and more particularly to a double-pressure roller clamping type fully constrained shock absorption device. Background Technology

[0002] A disc drawing machine is a mechanical device that uses the high-speed rotation of a disc to generate drawing traction force, thereby drawing the material through a drawing die to achieve cold drawing processing. During operation, due to the high-speed movement of the material being drawn and the large distance between the drawing die opening and the disc, the slender material being drawn is prone to severe vibration. This vibration significantly affects the surface quality of the drawn material, the stability of the disc drawing process, and the quality of the finished product. To eliminate this vibration, existing disc drawing machines are typically equipped with shock absorption devices, such as… Figure 4 As shown, existing vibration damping devices use a cylinder to drive rollers that contact the material being drawn. The rollers compress the material, providing pre-pressure and positional constraint, thus tautning the material and eliminating vibration. However, this structure has a problem: because the area below the material being drawn is open, as the rollers provide pre-pressure, over time, vibrations may occur. Figure 5 As shown, the position of the drawn material in the drum may shift downwards under the action of preload. Figure 5 The arrows in the diagram indicate the downward movement of the material being drawn on the drum. This causes the pre-pressure of the rollers on the material to be drawn to gradually decrease or even disappear. At the same time, the downward movement of the material being drawn also weakens the restriction on its lateral and longitudinal positions, resulting in poor shock absorption and affecting quality and production efficiency. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a double pressure roller clamping type fully constrained vibration damping device, which has the advantage of stable vibration damping effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a double-pressure roller clamping type fully constrained shock absorption device, including: a base, a swing rod, a telescopic mechanism, a first rotating shaft and rollers. The first end of the material to be drawn is wound around a disc, and the second end of the material to be drawn can pass through the drawing die. The base is set between the disc and the drawing die. The middle part of the swing rod is oscillatingly connected to the base through the first rotating shaft. Rollers are rotatably connected to both ends of the swing rod. The telescopic mechanism is oscillatingly connected to the base. The moving end of the telescopic mechanism is oscillatingly connected to the swing rod. The moving end of the telescopic mechanism is located between the first rotating shaft and the rollers. The material to be drawn can pass between the two rollers. The swing rod can swing under the drive of the telescopic mechanism. The two rollers can squeeze the material to be drawn in opposite directions to make the material to be drawn taut.

[0005] Optionally, the base is L-shaped, with a fixing plate on the side for fixing, and fixing holes on the fixing plate. A first shaft seat is provided at the bottom of the base, and the bottom of the telescopic mechanism is oscillatingly connected to the first shaft seat via a second rotating shaft. A connecting hole for fixing the first rotating shaft is provided at the top of the base, and nuts for limiting the position are provided at both ends of the first rotating shaft.

[0006] Optionally, the sidewalls of the rollers are provided with V-shaped notches for the material to be pulled in, and the axes of the two rollers are parallel to each other.

[0007] Optionally, a bearing is provided in the middle of the rocker arm, and the first pivot can pass through the inner ring of the bearing.

[0008] Optionally, the telescopic mechanism can be any one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The moving end of the telescopic mechanism is fixed with a third rotating shaft, and a second bearing seat is provided between the swing arm and the first rotating shaft and the roller. The third rotating shaft is rotatably connected to the second bearing seat.

[0009] Alternatively, the roller may be made of rubber.

[0010] The beneficial technical effects of this utility model are as follows: The double-pressure roller clamping fully constrained shock absorption device includes a base, a swing arm, a telescopic mechanism, a first rotating shaft, and rollers. In use, the material to be drawn first passes between the two rollers. Then, the swing arm swings under the drive of the telescopic mechanism, causing the two rollers to squeeze the drawn material in opposite directions. The drawn material is tightened under the pressure of the two rollers, thus achieving a shock absorption effect. Because the two rollers provide pre-pressure by squeezing the drawn material in opposite directions, this avoids the situation where squeezing the drawn material in one direction causes it to shift downwards, thus affecting the shock absorption. Compared with existing technologies, the shock absorption effect is more stable. It has the advantage of stable shock absorption effect. Attached Figure Description

[0011] Figure 1 This is a front view of the entire machine with the rollers not in contact with the material being pulled;

[0012] Figure 2 This is a front view of the entire machine in the state of the rollers contacting the material being pulled;

[0013] Figure 3 This is a bottom view of the entire machine of this utility model;

[0014] Figure 4 This is a structural diagram of existing technology;

[0015] Figure 5 This is a schematic diagram of the downward movement of a drawn material under pre-pressure in the prior art;

[0016] in:

[0017] 1. Base; 2. Swing rod; 3. Telescopic mechanism; 4. First rotating shaft; 5. Roller; 6. Material being pulled; 7. Fixing plate; 8. First shaft seat. Detailed Implementation

[0018] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] This specific embodiment details the dual-pressure roller clamp-type fully constrained vibration damping device described in this application, such as... Figures 1-3 As shown, the double-pressure roller clamping type fully constrained shock absorption device includes: a base 1, a swing rod 2, a telescopic mechanism 3, a first rotating shaft 4, and rollers 5. The first end of the material 6 to be drawn is wound around the disc, and the second end of the material 6 to be drawn can pass through the drawing die. The base 1 is set between the disc and the drawing die. The middle part of the swing rod 2 is oscillatingly connected to the base 1 through the first rotating shaft 4. Rollers 5 are rotatably connected to both ends of the swing rod 2. The telescopic mechanism 3 is oscillatingly connected to the base 1. The moving end of the telescopic mechanism 3 is oscillatingly connected to the swing rod 2. The moving end of the telescopic mechanism 3 is located between the first rotating shaft 4 and the rollers 5. The material 6 to be drawn can pass between the two rollers 5. The swing rod 2 can swing under the drive of the telescopic mechanism 3. The two rollers 5 can squeeze the material 6 to be drawn in opposite directions to make the material 6 taut. In use, the material 6 to be drawn is first passed between the two rollers 5. Then, the swing arm 2 swings under the drive of the telescopic mechanism 3, causing the two rollers 5 to squeeze the material 6 in opposite directions. The material 6 is tightened under the pressure of the two rollers 5, thus achieving a shock absorption effect. Since the two rollers 5 provide pre-pressure by squeezing the material 6 in opposite directions, this avoids the situation where the material 6 shifts downward due to unidirectional squeezing, which would affect the shock absorption. Compared with existing technologies, the shock absorption effect is more stable. It has the advantage of stable shock absorption effect.

[0020] Optionally in this embodiment, the base 1 is L-shaped, and a fixing plate 7 for fixing is provided on the side of the base 1. The fixing plate 7 has fixing holes. A first bearing seat 8 is provided at the bottom end of the base 1. The bottom end of the telescopic mechanism 3 is oscillatingly connected to the first bearing seat 8 through a second rotating shaft. A connecting hole for fixing a first rotating shaft 4 is provided at the top end of the base 1. Nuts for limiting the first rotating shaft 4 are provided at both ends. The nuts can prevent the first rotating shaft 4 from disengaging from the connecting hole.

[0021] Optionally in this embodiment, the sidewall of the roller 5 is provided with a V-shaped notch into which the material 6 to be drawn can be inserted, and the axes of the two rollers 5 are parallel to each other. When the material 6 to be drawn is inserted into the V-shaped notch, the V-shaped notch can restrict the left and right swaying of the material 6 to be drawn, thereby improving the stability of the material 6 to be drawn.

[0022] Optionally in this embodiment, a bearing is provided in the middle of the swing arm 2, and the first rotating shaft 4 can pass through the inner ring of the bearing. The bearing can reduce the friction when the swing arm 2 swings.

[0023] Optionally in this embodiment, the telescopic mechanism 3 can be any one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. A third rotating shaft is fixed to the moving end of the telescopic mechanism 3. A second bearing seat is provided between the first rotating shaft 4 and the roller 5 on the swing arm 2, and the third rotating shaft is rotatably connected to the second bearing seat. In some optional embodiments, the second bearing seat is detachably fixed to the swing arm 2 by bolts.

[0024] Optionally, in this embodiment, the roller 5 is made of rubber. Using rubber for the roller 5 reduces slippage between the material being pulled 6 and the roller 5.

[0025] The double-pressure roller clamping fully constrained shock absorption device in this embodiment has the advantage of stable shock absorption effect.

Claims

1. A double-pressure roller clamping type fully constrained vibration damping device, characterized in that, include: The base (1), swing rod (2), telescopic mechanism (3), first rotating shaft (4) and roller (5) are arranged. The first end of the material (6) to be drawn is wound around the disc, and the second end of the material (6) to be drawn can pass through the drawing die. The base (1) is set between the disc and the drawing die. The middle part of the swing rod (2) is oscillatingly connected to the base (1) through the first rotating shaft (4). The two ends of the swing rod (2) are rotatably connected to the roller (5). The telescopic mechanism (3) is oscillatingly connected to the base (1). The moving end of the telescopic mechanism (3) is oscillatingly connected to the swing rod (2). The moving end of the telescopic mechanism (3) is located between the first rotating shaft (4) and the roller (5). The material (6) to be drawn can pass between the two rollers (5). The swing rod (2) can swing under the drive of the telescopic mechanism (3). The two rollers (5) can squeeze the material (6) to be drawn in opposite directions to make the material (6) taut.

2. The double-pressure roller clamping type fully constrained vibration damping device according to claim 1, characterized in that: The base (1) is L-shaped. A fixing plate (7) for fixing is provided on the side of the base (1). A fixing hole is provided on the fixing plate (7). A first bearing seat (8) is provided at the bottom of the base (1). The bottom of the telescopic mechanism (3) is oscillatingly connected to the first bearing seat (8) through a second rotating shaft. A connecting hole for fixing the first rotating shaft (4) is provided at the top of the base (1). Nuts for limiting the position are provided at both ends of the first rotating shaft (4).

3. The double-pressure roller clamping type fully constrained vibration damping device according to claim 1, characterized in that: The sidewall of the roller (5) is provided with a V-shaped notch into which the material (6) to be pulled can be inserted, and the axes of the two rollers (5) are parallel to each other.

4. The double-pressure roller clamping type fully constrained vibration damping device according to claim 2, characterized in that: A bearing is provided in the middle of the swing arm (2), and the first rotating shaft (4) can pass through the inner ring of the bearing.

5. The double-pressure roller clamping type fully constrained vibration damping device according to claim 1, characterized in that: The telescopic mechanism (3) can be any one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The moving end of the telescopic mechanism (3) is fixed with a third rotating shaft. The swing arm (2) is provided with a second shaft seat between the first rotating shaft (4) and the roller (5). The third rotating shaft is rotatably connected to the second shaft seat.

6. The double-pressure roller clamping type fully constrained vibration damping device according to claim 3, characterized in that: The roller (5) is made of rubber.

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