High-precision atomization oiling knife beam

Abstract

The utility model discloses a high-precision atomization oiling knife beam, and belongs to the field of oiling machine equipment. At least one group of separation beams are arranged in the knife beam oil cavity, the top of each separation beam is provided with an oil inlet channel to enable an inner cavity of each separation beam to be communicated with the knife beam oil cavity, and each separation beam separates the knife beam oil cavity from an oil coating hole in the bottom wall of the knife beam main body and does not communicate with the oil coating hole; at least one layer of separation layer plate is arranged in an inner cavity of the separation beam from top to bottom, each layer of separation layer plate is provided with a plurality of sets of oil outlet channels to enable an upper layer cavity and a lower layer cavity to be communicated, and the bottom layer cavity of the separation beam is communicated with an oil coating hole in the bottom wall of the cutter beam body. And finally, the oil flows out from the oil coating holes in the bottom wall of the knife beam main body, so that the flow velocity of the oil sprayed from the bottom wall of the knife beam main body can be greatly improved to be uniform, the density of electrostatic atomization particles of the oil is remarkably increased, and high-uniformity coating is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of oil coating machine equipment, and more specifically to a high-precision atomized oil coating knife beam. Background Art

[0002] Electrostatic oiling machines are widely used. In the production of steel, tin plating, aluminum foil and other strips, it is necessary to spray anti-rust oil and other oils on the surface of thin strips. The oil applied on the surface of the strip is required to be as uniform as possible, and the amount of oil applied is controlled within a certain range. At present, electrostatic oiling is widely used to complete the coating. The core component of electrostatic oiling is the oiling knife beam. The knife beam body is usually connected to 50-80kV static electricity. The mainstream types of knife beams are mainly: a. Steel trough knife beam, small holes are evenly arranged throughout the lower part of the oil chamber, the oil is sent to the chamber, and then flows from the small holes at the bottom to form tiny oil droplets. The paint is atomized and applied to the surface of the strip under the electrostatic field. b. Rotary cup nozzle, the oil is sent to the high-speed rotating rotary cup, and then thrown out from the edge of the rotary cup. Using the combination of centrifugal force and electrostatic force, the rotary cup oiler atomizes the paint and applies it to the surface of the strip.

[0003] The above-mentioned blade beam design, which is currently widely used in the industry, still has some unsatisfactory aspects in practice, such as: the oil spray is the entire blade beam length, and in actual use, the adaptability to the change of strip width is not high. The oil coating amount is calculated by multiplying the oil coating amount per unit area by the strip width to be coated and the running speed. The oil sprayed in the area without strip on both sides is not actually coated on the strip surface, that is to say, the accuracy of the oil coating amount is not high. Secondly, the spray is arranged along the length of the blade beam, and the amount of oil sprayed from each oil outlet is uneven, especially when the oil coating amount is large, and the flow rate will affect the size of the oil droplets. Under a certain electrostatic voltage, the oil atomization rate is closely related to the oil flow rate. It is imperative to improve the oil coating accuracy and uniformity.

[0004] The patent with publication number CN208912393U provides a segmented control blade beam for an oiling machine. The blade beam body includes a first blade beam frame and a second blade beam frame. The first blade beam frame is provided with the front end of the second blade beam frame. An oil spraying groove is provided in the middle of the first blade beam frame. Slot holes are provided inside the oil spraying groove at intervals. Countersunk holes are provided above and below the oil spraying groove. A first conical section is provided above the first blade beam frame, and a second conical section is provided above the second blade beam frame. A nozzle is provided at the upper end of the first conical section. A nozzle bracket is provided on the front side wall of the second blade beam frame, and a spray hole is provided inside the nozzle bracket. The segmented control blade beam for the oiling machine uses multiple spray holes to control the oiling part in segments to avoid the accumulation of anti-rust oil on both sides of the blade beam. However, it does not significantly help in terms of oiling uniformity. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the problems of poor spray uniformity and low oil coating accuracy when using the oiling knife beam in the prior art, the utility model intends to provide a high-precision atomized oiling knife beam, aiming to solve at least one of the above problems and improve the oiling effect.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0009] The utility model discloses a high-precision atomized oiling knife beam, comprising a knife beam main body and an oil inlet pipe, wherein the oil inlet pipe is used for injecting oil into a knife beam oil cavity in the knife beam main body, and a plurality of groups of oiling holes are evenly spaced on the bottom wall of the knife beam main body; at least one group of partition beams is arranged in the knife beam oil cavity, and an oil inlet channel is arranged on the top of the partition beam to connect the inner cavity of the partition beam with the knife beam oil cavity, and the partition beam separates the knife beam oil cavity from the oiling holes on the bottom wall of the knife beam main body and does not connect with each other; at least one layer of partition plate is arranged from top to bottom in the inner cavity of the partition beam, and a plurality of groups of oil outlet channels are arranged on each layer of partition plate to keep the upper and lower chambers connected, and the bottom chamber of the partition beam is connected with the oiling holes on the bottom wall of the knife beam main body, so that the oil in the knife beam oil cavity overflows into the partition beam and finally flows out through the oiling holes on the bottom wall of the knife beam main body.

[0010] Furthermore, a plurality of groups of partition beams are provided in the knife beam oil chamber along the length direction, and the plurality of groups of partition beams are sequentially spliced ​​and distributed to divide the knife beam oil chamber into a plurality of oil sub-chambers which are not connected to each other; a plurality of groups of oil injection branch pipes are correspondingly distributed on the oil inlet pipe, and each group of oil injection branch pipes extends to be connected with the oil sub-chamber at the corresponding position, and a solenoid valve is provided on each group of oil injection branch pipes for controlling the separate oil supply to each oil sub-chamber.

[0011] Furthermore, the cross-sectional area of ​​the inner cavity of the partition beam gradually increases from top to bottom, and correspondingly, the cross-sectional area of ​​the oil separation cavity formed by the plurality of partition beams gradually decreases from top to bottom.

[0012] Furthermore, multiple layers of separation plates are arranged from top to bottom in the inner cavity of the separation beam, and along the oil flow direction from top to bottom, the size of the oil outlet channel on each layer of separation plates gradually decreases and is larger than the size of the oiling hole on the bottom wall of the blade beam body.

[0013] Furthermore, the oil outlet channels on the multi-layer separation plates are arranged in a staggered manner.

[0014] Furthermore, the contour cross-section of the partition beam is triangular, and the cross-sectional area gradually increases from top to bottom. The top of the partition beam contacts the top wall of the knife beam oil chamber, and an oil inlet channel is opened on the upper part of the side wall of the partition beam to communicate with the knife beam oil chamber.

[0015] Furthermore, the contour cross-section of the partition beam is a right triangle, and one of the right-angled sides is vertically distributed in the knife beam oil chamber. Multiple groups of partition beams are spliced ​​and distributed in sequence, thereby dividing the knife beam oil chamber into multiple groups of triangular oil chambers whose cross-sectional areas gradually decrease from top to bottom.

[0016] Furthermore, with the center of the length direction of the knife beam oil chamber as the axis, the multiple groups of partition beams are symmetrically distributed.

[0017] Furthermore, there is a certain gap between the bottom end of the partition beam and the bottom wall of the knife beam oil chamber. When multiple groups of partition beams are spliced ​​and distributed in sequence, the corresponding multiple gaps are connected to each other.

[0018] Furthermore, 2-4 groups of partitioning layers are provided in the inner cavity of the partitioning beam.

[0019] Furthermore, a plurality of groups of separation layers are distributed at equal height intervals in the inner cavity of the separation beam along the height direction.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0022] (1) In the oiling knife beam of the utility model, the oil entering the oil cavity of the knife beam will not directly flow down from the oiling holes on the bottom wall first. Instead, when the oil accumulates in the oil cavity of the knife beam to the upper liquid level, it will first overflow into the inner cavity of the partition beam, and then use the partition layer plates to flow down layer by layer until it finally flows out through the oiling holes on the bottom wall of the knife beam body. In this way, the uniformity of the flow rate of the oil sprayed from the bottom wall of the knife beam body can be greatly improved, the density of the electrostatically atomized particles of the oil can be significantly increased, and a highly uniform coating can be achieved.

[0023] (2) The oiling knife beam of the utility model has a plurality of groups of oiling branch pipes distributed on the oil inlet pipe, each group of oiling branch pipes extends to communicate with the oil distribution chamber at the corresponding position, and each group of oiling branch pipes is provided with a solenoid valve, which divides the knife beam as a whole into a multi-section structure. Oiling branch pipes of different positions and numbers can be selected for oiling, and the effective oiling width can be adjusted according to the width of the strip to be coated, thereby improving the precision control of the oiling amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the oiling knife beam structure of the utility model.

[0025] Explanation of the symbols in the schematic diagram:

[0026] 100, oil inlet pipe; 101, oil injection branch pipe; 102, solenoid valve;

[0027] 200, knife beam body; 201, knife beam oil chamber;

[0028] 300, partition beam; 301, partition layer plate. DETAILED DESCRIPTION

[0029] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should 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 a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; the terms "first", "second", "third", and "fourth" should be understood in a broad sense, and are only used to distinguish feature names, and do not indicate a specific order relationship. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] The utility model is further described below in conjunction with embodiments.

[0033] Example

[0034] Combination Figure 1 As shown, a high-precision atomized oiled knife beam of the present embodiment includes a knife beam main body 200 and an oil inlet pipe 100. The oil inlet pipe 100 is used to inject oil into a knife beam oil cavity 201 in the knife beam main body 200. A plurality of groups of oiling holes are evenly spaced on the bottom wall of the knife beam main body 200. In the conventional technology, after the oil enters the knife beam oil cavity 201, it can directly flow out through the oiling holes on the bottom wall.

[0035] It should be noted that, in the present embodiment, at least one group of partition beams 300 is provided in the knife beam oil chamber 201, and an oil inlet channel is provided on the top of the partition beam 300 to connect the inner cavity of the partition beam 300 with the knife beam oil chamber 201, and the partition beam 300 separates the knife beam oil chamber 201 from the oiling holes on the bottom wall of the knife beam body 200 so that they are not connected to each other; at least one layer of partition plate 301 is provided from top to bottom in the inner cavity of the partition beam 300, and each layer of the partition plate 301 is provided with multiple groups of oil outlet channels to keep the upper and lower chambers connected, and the bottom chamber of the partition beam 300 is connected to the oiling holes on the bottom wall of the knife beam body 200, so that the oil in the knife beam oil chamber 201 overflows into the partition beam 300 and finally flows out through the oiling holes on the bottom wall of the knife beam body 200.

[0036] While maintaining the heating and heat preservation function of the traditional knife beam, this embodiment optimizes the traditional grooved knife beam, adopts an extruded aluminum knife beam, and uses a partition beam 300 to separate the knife beam oil chamber 201 and the oiling hole on the bottom wall of the knife beam body 200. Instead of directly maintaining communication, an oil inlet channel is set on the upper part of the partition beam 300, so that the oil entering the knife beam oil chamber 201 will not directly flow down from the bottom wall oiling hole first, but when the oil accumulates in the knife beam oil chamber 201 to the upper liquid level, it will overflow into the inner cavity of the partition beam 300, and use the partition layer plate 301 to flow down layer by layer until it finally flows out through the oiling hole on the bottom wall of the knife beam body 200, so as to ensure that the injection pressure at various locations in the entire knife beam oil chamber 201 is maintained consistent, the pressure is sufficient, and the coating is uniform. More preferably, in practice, multiple layers of separation plates 301 are arranged from top to bottom in the inner cavity of the separation beam 300, and along the oil flow direction from top to bottom, the size of the oil outlet channel on each layer of separation plates 301 gradually decreases, and is larger than the size of the oiling hole on the bottom wall of the blade beam body 200. The oil outlet channels on the multiple layers of separation plates 301 are arranged in a staggered manner. In this way, the uniformity of the oil flow rate sprayed from the bottom wall of the blade beam body 200 can be greatly improved, the density of the electrostatically atomized oil particles can be significantly increased, and a highly uniform coating can be achieved.

[0037] In order to achieve flexible adjustment of the oiling width, a more optimized design is that multiple groups of partition beams 300 are provided in the knife beam oil chamber 201 along the length direction, and the multiple groups of partition beams 300 are sequentially spliced ​​and distributed to divide the knife beam oil chamber 201 into multiple oil chambers that are not connected to each other; multiple groups of oil injection branch pipes 101 are correspondingly distributed on the oil inlet pipe 100, each group of oil injection branch pipes 101 extends to communicate with the oil chamber at the corresponding position, and each group of oil injection branch pipes 101 is provided with a solenoid valve 102 for controlling the separate oil supply to each oil chamber. By setting multiple groups of oil injection branch pipes 101 to be connected to the corresponding number of oil chambers, the knife beam is divided into a multi-section structure, and different positions and numbers of oil injection branch pipes 101 can be selected for oiling, and the effective oiling width can be adjusted according to the width of the strip to be coated, thereby improving the precision control of the oiling amount.

[0038] More preferably, in practice, the cross-sectional area of ​​the inner cavity of the partition beam 300 gradually increases from top to bottom, so that the length of the multi-layer partition plate 301 can gradually increase, and the size of the oil outlet channel is gradually reduced and the number of oil outlet channels is gradually increased accordingly, so as to meet the uniform injection requirement of the oil; correspondingly, the cross-sectional area of ​​the oil separation chamber formed by the multiple groups of partition beams 300 gradually decreases from top to bottom, so that the oil injected by the oil filling pipe 101 can quickly raise the liquid level from the bottom and overflow into the inner cavity of the partition beam 300.

[0039] As a specific implementation, the cross-section of the partition beam 300 is triangular, and the cross-sectional area gradually increases from top to bottom. The top of the partition beam 300 contacts the top wall of the knife beam oil chamber 201, and the upper part of the side wall of the partition beam 300 is provided with an oil inlet channel connected to the knife beam oil chamber 201. Multiple groups of partition beams 300 can be in various forms such as isosceles triangles, equilateral triangles, irregular triangles, etc. More preferably, as Figure 1 As shown, the cross-section of the partition beam 300 is a right triangle, and one right-angled side thereof is vertically distributed in the knife beam oil chamber 201. Multiple groups of partition beams 300 are sequentially spliced ​​and distributed, thereby dividing the knife beam oil chamber 201 into multiple groups of triangular oil chambers whose cross-sectional areas gradually decrease from top to bottom. Figure 1 It can be seen that the multiple oil separation chambers are in the form of inverted right triangles, which can quickly raise the liquid level and overflow. The right triangle design also facilitates the end-to-end connection arrangement between multiple groups of partition beams 300, that is, the bottom of the hypotenuse of the first group of partition beams 300 is in contact with the bottom of the right angle of the second group of partition beams 300, and the top of the hypotenuse of the partition beam 300 is in contact with the top wall of the knife beam oil chamber 201, forming an effective separation of the multiple oil separation chambers, and also forming an effective separation of the oil separation chambers and the oiling holes on the bottom wall of the knife beam body 200. It can be further pre-selected that the design is symmetrically distributed with the center of the length direction of the knife beam oil chamber 201 as the axis, that is, Figure 1 As shown, the bottom positions of the hypotenuses of the two groups of partition beams 300 in the middle position are abutted against each other, forming a relatively large inverted isosceles triangle oil distribution chamber at the center position of the knife beam body 200, and a group of oil injection pipes 101 can be used to simultaneously supply oil to the two groups of partition beams 300; and the partition beams 300 on the left and right sides are also symmetrically distributed in sequence, forming an oil distribution chamber between the two adjacent groups of partition beams 300.

[0040] In practice, it is optional that there is still a certain gap between the bottom end of the partition beam 300 and the bottom wall of the knife beam oil chamber 201. When multiple groups of partition beams 300 are spliced ​​and distributed in sequence, the corresponding multiple gaps are interconnected to form an overall oil communication channel to ensure that the oiling holes on the bottom wall of the knife beam body 200 can maintain a uniform spraying effect.

[0041] In practice, the number and distribution positions of the partition plates 301 can be flexibly determined according to processing requirements. According to practice, in conventional processing, multiple groups of partition plates 301 can be distributed at equal heights in the inner cavity of the partition beam 300 along the height direction. 2-4 groups are appropriate to achieve a uniform oiling effect. The distribution quantity can also be further adjusted according to changes in application scenarios.

[0042] The protection scope of the present invention is limited only by the claims. Thanks to the teachings of the present invention, those skilled in the art will easily recognize that alternative structures to the structures disclosed in the present invention can be used as feasible alternative embodiments, and the embodiments disclosed in the present invention can be combined to generate new embodiments, which also fall within the scope of the appended claims.

Claims

1. A high-precision atomized oiling knife beam, comprising a knife beam body (200) and an oil inlet pipe (100), wherein the oil inlet pipe (100) is used to inject oil into a knife beam oil cavity (201) in the knife beam body (200), and a plurality of groups of oiling holes are evenly spaced on the bottom wall of the knife beam body (200); the characteristics are: At least one group of partition beams (300) is arranged in the knife beam oil cavity (201); an oil inlet channel is arranged on the top of the partition beam (300) so that the inner cavity of the partition beam (300) is connected to the knife beam oil cavity (201); and the partition beam (300) separates the knife beam oil cavity (201) from the oiling hole on the bottom wall of the knife beam body (200) so that they are not connected to each other; at least one layer of partition plate (301) is arranged from top to bottom in the inner cavity of the partition beam (300); each layer of partition plate (301) is provided with a plurality of groups of oil outlet channels so that the upper and lower chambers are kept connected; the bottom chamber of the partition beam (300) is connected to the oiling hole on the bottom wall of the knife beam body (200), so that the oil in the knife beam oil cavity (201) overflows into the partition beam (300) and finally flows out through the oiling hole on the bottom wall of the knife beam body (200).

2. A high-precision atomized oil-coated knife beam according to claim 1, characterized in that: A plurality of groups of partition beams (300) are arranged in the knife beam oil chamber (201) along the length direction, and the plurality of groups of partition beams (300) are sequentially spliced ​​and distributed to divide the knife beam oil chamber (201) into a plurality of oil sub-chambers that are not connected to each other; a plurality of groups of oil injection sub-tubes (101) are correspondingly distributed on the oil inlet pipe (100), each group of oil injection sub-tubes (101) extends to communicate with the oil sub-chamber at a corresponding position, and each group of oil injection sub-tubes (101) is provided with a solenoid valve (102) for controlling the individual oil supply to each oil sub-chamber.

3. A high-precision atomized oil-coated knife beam according to claim 2, characterized in that: The cross-sectional area of ​​the inner cavity of the partition beam (300) gradually increases from top to bottom, and correspondingly, the cross-sectional area of ​​the oil separation cavity formed by the plurality of partition beams (300) gradually decreases from top to bottom.

4. A high-precision atomized oil-coated knife beam according to claim 1, characterized in that: A plurality of separation layers (301) are arranged from top to bottom in the inner cavity of the separation beam (300), and along the oil flow direction from top to bottom, the size of the oil outlet channel on each separation layer (301) gradually decreases and is larger than the size of the oiling hole on the bottom wall of the blade beam body (200).

5. A high-precision atomized oil-coated knife beam according to claim 4, characterized in that: The oil outlet channels on the multi-layer separation plate (301) are arranged in a staggered manner.

6. A high-precision atomized oil-coated knife beam according to claim 1, characterized in that: The profile cross section of the partition beam (300) is triangular, and the cross-sectional area gradually increases from top to bottom. The top end of the partition beam (300) contacts the top wall of the knife beam oil chamber (201), and an oil inlet channel is provided on the upper part of the side wall of the partition beam (300) and is connected to the knife beam oil chamber (201).

7. A high-precision atomized oil-coated knife beam according to claim 6, characterized in that: The profile cross section of the partition beam (300) is in the shape of a right triangle, and one right-angled side thereof is vertically distributed in the knife beam oil chamber (201). Multiple groups of partition beams (300) are sequentially spliced ​​and distributed, thereby dividing the knife beam oil chamber (201) into multiple groups of triangular oil chambers whose cross-sectional areas gradually decrease from top to bottom.

8. A high-precision atomized oiling knife beam according to any one of claims 1 to 7, characterized in that: With the center of the knife beam oil chamber (201) in the length direction as the axis, the multiple groups of partition beams (300) are symmetrically distributed.

9. A high-precision atomized oil-coated knife beam according to any one of claims 1 to 8, characterized in that: There is a certain gap between the bottom end of the partition beam (300) and the bottom wall of the knife beam oil chamber (201), and when multiple groups of partition beams (300) are sequentially spliced ​​and distributed, the corresponding multiple gaps are interconnected.

10. A high-precision atomized oil-coated knife beam according to any one of claims 1 to 9, characterized in that: Two to four groups of separation layer plates (301) are arranged in the inner cavity of the separation beam (300).

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