Device for eliminating oiling edge effect of aluminum material

Abstract

The utility model relates to a device for eliminating an aluminum material oiling edge effect, which comprises an upper oil spraying cutter beam and a lower oil spraying cutter beam which are arranged in an oiling chamber, oil spraying nozzles are uniformly distributed on the upper oil spraying cutter beam and the lower oil spraying cutter beam along the transverse direction, oil baffle plates are arranged on two sides in the oiling chamber and are positioned between the upper oil spraying cutter beam and the lower oil spraying cutter beam, and the oil baffle plates are arranged on the upper oil spraying cutter beam and the lower oil spraying cutter beam. And a driving mechanism for driving the two oil baffle plates to move towards the edge direction of the strip is arranged in the oil coating chamber. According to the device, the edge effect of the strip can be transferred to the oil baffle plate, and the phenomenon that an oil film on the edge of the strip is too thick is avoided.

Description

Technical Field

[0001] The utility model relates to a device for eliminating the oil-coated edge effect of aluminum materials. Background Art

[0002] Electrostatic oiling involves connecting a high-voltage positive / negative electrode to the oil-spraying blade beam, with the upper blade beam acting as the positive electrode and the lower blade beam as the negative electrode. The aluminum strip is grounded as the neutral position. This creates a high-voltage electrostatic field between the blade beam and the aluminum strip. When the pre-applied oil is sprayed from the gap between the blade beam's cutting edge, it becomes positively / negatively charged. Under the influence of the electric field, the positively / negatively charged oil particles rapidly move toward the strip along the electric field's lines of force.

[0003] In areas without strip, the positively and negatively charged oil particles sprayed by the upper and lower blades disperse under the impact of the upper and lower blades. Attracted by the zero-charge strip, they are drawn to the strip's edges, resulting in an excessively thick oil film at the strip's edges. This can easily lead to compression necking in the aluminum sheet during the downstream stamping process, compromising product quality. Utility Model Content

[0004] The utility model aims to provide a device for eliminating the oil-coated edge effect of aluminum materials, which helps to transfer the edge effect of the strip to the oil baffle plate to avoid excessively thick oil film on the strip edge.

[0005] The technical solution of the utility model is: a device for eliminating the oiling edge effect of aluminum material, comprising an upper oil-spraying knife beam and a lower oil-spraying knife beam arranged in an oiling chamber, wherein the upper oil-spraying knife beam and the lower oil-spraying knife beam are uniformly distributed with oil spray nozzles along the transverse direction, oil baffles are arranged on both sides of the oiling chamber and between the upper oil-spraying knife beam and the lower oil-spraying knife beam, and a driving mechanism is provided in the oiling chamber to drive the two oil baffles to move toward the edge direction of the strip.

[0006] Furthermore, the driving mechanism includes a screw guide rail slide laterally arranged in the oiling chamber, the screw guide rail slide is located on the lower side of the strip and is driven by a motor with an absolute encoder, one end of the oil baffle is connected to the slide seat of the screw guide rail slide, and the other end of the oil baffle is slidably engaged with the oiling chamber.

[0007] Furthermore, the screw guide rail slide is arranged on the inlet side of the oil coating chamber, the outlet side of the oil coating chamber is laterally provided with a guide rail, and the other end of the oil baffle is installed with a pulley that slides with the guide rail.

[0008] Furthermore, the oil baffle is tilted to form an angle with the horizontal plane.

[0009] Furthermore, the angle between the oil baffle and the horizontal plane is 40°~60°.

[0010] Furthermore, the oil baffle is a metal plate.

[0011] Furthermore, an edge-finding limit sensor and an edge-finding extreme position sensor electrically connected to the driving mechanism are provided on both sides of the strip in the oil coating chamber.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. This device can virtually widen the strip width, balance the electric field inside the oiler, transfer the edge effect to the oil baffle, and avoid thick oil film on the strip edge.

[0014] 2. By tilting the oil baffle, the oil sprayed onto the oil baffle is quickly diverted to prevent the oil from gathering on the oil baffle and affecting the high-voltage electrostatic field between the upper and lower blade beams, ensuring that the oil film on both sides of the aluminum strip and the middle of the aluminum strip are uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cooperation between the existing strip and the upper and lower oil-spraying knife beams;

[0016] Figure 2 This is a schematic diagram of the oil coating chamber structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cooperation between the strip and the oil baffle of the present utility model;

[0018] Figure 4 This is an end view of the strip and oil baffle of the utility model;

[0019] In the figure: 1-strip 2-oil nozzle 3-oil mist 10-oiling chamber 11-upper oiling knife beam 12-lower oiling knife beam 13-oiling chamber inlet 14-oiling chamber outlet 20-oil baffle 21-angle 31-screw guide rail slide 32-motor 33-edge limit sensor 34-edge limit sensor 35-guide rail 36-pulley. DETAILED DESCRIPTION

[0020] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0021] refer to Figures 2 to 4

[0022] A device for eliminating the edge effect of aluminum oil coating, comprising an upper oil spray knife beam 11 and a lower oil spray knife beam 12 arranged in an oil coating chamber 10, wherein a plurality of oil nozzles 2 are uniformly distributed along the transverse direction on the side of the upper oil spray knife beam and the lower oil spray knife beam facing the strip, and oil baffles 20 are arranged on both sides of the oil coating chamber and between the upper oil spray knife beam and the lower oil spray knife beam, and a driving mechanism is provided in the oil coating chamber for driving the two oil baffles to move toward the edge of the strip, so that the oil baffles are driven to stop when they are 10-15 mm away from the edge of the strip, thereby playing the role of virtually widening the width of the strip, balancing the internal electric field of the oiler, transferring the edge effect to the oil baffles, and avoiding a thick oil film at the edge of the strip.

[0023] In this embodiment, the drive mechanism includes a screw guide rail slide 31 disposed transversely within the oiling chamber. The screw guide rail slide is located below the strip and is driven by a motor 32 with an absolute encoder. One end of the oil baffle is connected to the slide seat of the screw guide rail slide, and the other end of the oil baffle slide is in sliding engagement with the oiling chamber. Within the oiling chamber, an edge limit sensor 33 and an edge limit position sensor 34, electrically connected to the drive roller mechanism, are disposed on both sides of the strip. This automatically adjusts the baffle position based on the strip width in the secondary system, virtually widening the strip width and balancing the internal electric field of the oiler, transferring the edge effect to the oil baffle plate to prevent the oil film from being too thick at the strip edge. Both the edge limit sensor and the edge limit position sensor can be diffuse reflection switches.

[0024] In this embodiment, the screw guide rail slide is arranged on one side of the oiling chamber inlet 13, and a guide rail 35 is arranged transversely on the oiling chamber outlet 14. The other end of the oil baffle is mounted with a pulley 36 that slides with the guide rail. This cooperates with the screw guide rail slide to better complete the movement of the oil baffle.

[0025] In this embodiment, the oil baffle is tilted to form an angle of 21° with the horizontal plane. Specifically, the angle between the oil baffle and the horizontal plane is 40° to 60°, preferably 45°. This allows for rapid diversion of the oil sprayed onto the oil baffle, preventing it from accumulating on the baffle and affecting the high-voltage electrostatic field between the upper and lower blade beams. This ensures consistent oil film uniformity on both sides of the aluminum strip and in the center of the strip.

[0026] In this embodiment, the oil baffle is made of aluminum alloy and has a width of 200 mm.

[0027] When the aluminum strip enters the oiling chamber for oiling, the motors on both sides of the oil baffles activate and, driven by a screw, automatically locate the edge of the strip 10-15 mm away, extending the width of the strip (the oil baffles effectively simulate the aluminum strip). This balances the high-voltage electrostatic field in the strip-free area, allowing the positively and negatively charged oil particles sprayed by the upper and lower oiling blades to adhere normally to the aluminum strip and the aluminum baffles on either side. This effectively shifts the "strip edge effect" from the strip edges to the aluminum baffle edges.

[0028] The calculation formula for the movement amount of the single-sided oil baffle for automatic edge finding is L3= (L-L1-2*L2) / 2, where L is the width of the oil chamber window (oil chamber entrance, oil chamber exit), L1 is the width of the strip, and L2 is the width of the oil baffle (the two oil baffles are symmetrical and have the same width).

[0029] When the two edge limit sensors find the edge of the strip, they will feedback the edge found signal; if the edge limit sensor is sensed due to poor strip shape or other reasons, the oil baffle will be automatically driven by the motor to withdraw to ensure that the edge limit sensor is sensed.

[0030] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0031] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0032] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0033] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A device for eliminating the edge effect of aluminum oiling, comprising an upper oiling knife beam and a lower oiling knife beam arranged in an oiling chamber, wherein the upper oiling knife beam and the lower oiling knife beam are uniformly distributed with oil nozzles along the transverse direction, characterized in that: Oil baffles are provided on both sides of the oil coating chamber and between the upper oil spraying knife beam and the lower oil spraying knife beam. The oil coating chamber is provided with driving mechanisms for respectively driving the two oil baffles to move toward the edge of the strip.

2. The device for eliminating the oiled edge effect of aluminum according to claim 1, characterized in that: The driving mechanism includes a screw guide rail slide arranged horizontally in the oil coating chamber. The screw guide rail slide is located on the lower side of the strip and is driven by a motor with an absolute encoder. One end of the oil baffle is connected to the slide seat of the screw guide rail slide, and the other end of the oil baffle is slidably engaged with the oil coating chamber.

3. The device for eliminating the oiled edge effect of aluminum according to claim 2, characterized in that: The screw guide rail slide is arranged on one side of the oil coating chamber inlet, and a guide rail is arranged laterally on the outlet side of the oil coating chamber. The other end of the oil baffle is equipped with a pulley that slides with the guide rail.

4. A device for eliminating the oiled edge effect of aluminum according to claim 1, 2 or 3, characterized in that: The oil baffle is tilted to form an angle with the horizontal plane.

5. The device for eliminating the oil-coated edge effect of aluminum according to claim 4, characterized in that: The angle between the oil baffle and the horizontal plane is 40°~60°.

6. A device for eliminating the oiled edge effect of aluminum according to claim 1, 2, 3 or 5, characterized in that: The oil baffle is a metal plate.

7. A device for eliminating the oiled edge effect of aluminum according to claim 1, 2, 3 or 5, characterized in that: The oiling chamber is provided with an edge-finding limit sensor and an edge-finding extreme position sensor electrically connected to the driving mechanism on both sides of the strip.

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