Strip oil removal device

Abstract

The utility model discloses a strip oil removing device which comprises a supporting frame, an air knife assembly, a wringing roller assembly, a purging assembly and a negative pressure suction assembly. The supporting frame is provided with an accommodating space; the air knife assembly is arranged in the containing space, connected with the supporting frame and used for blowing oil on the surface of the strip. The wringing roller assembly is arranged on the downstream of the air knife assembly, connected with the supporting frame and used for squeezing oil on the surface of the strip. The purging assembly is arranged on the downstream of the wringing roller assembly and used for removing residual oil on the surface of the strip. The negative pressure suction assembly is arranged on the downstream of the purging assembly and used for sucking and purging the generated oil mist. The squeezing rollers of the strip oil removing device are small in diameter and rotational inertia, and the strip is not prone to being scratched. The supporting roller can prevent the wringing roller from being bent and improve the wringing effect of the wringing roller. The air knife assembly and the purging assembly can remove impurities and oil on the surface of the strip. The negative pressure suction assembly can suck and discharge oil mist in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of strip production, and in particular relates to a strip oil removal device. Background Art

[0002] In the production of reversible cold rolling mill strip, it is necessary to use an oil removal device to wipe off the rolling oil on the surface of the strip. The existing oil removal device is generally composed of two upper and lower rollers, and the surface of the roller is covered with rubber material. The oil on the surface of the strip is removed by squeezing the upper and lower rollers, and at the same time, several groups of compressed air nozzles are assisted for blowing to achieve the oil removal effect. However, the squeezing roller of the existing oil removal device has a large diameter and a large moment of inertia. The rubber-coated roller is easy to contain slag and scratch the strip, and the roller surface is easily scratched by the strip. When the rolling speed is high, the amount of residual oil is large, and the oil removal effect is not ideal.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to provide a strip degreasing device, which has a compact structure, better degreasing effect and is not easy to scratch the strip.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the utility model is as follows: a strip oil removal device, comprising: a support frame, an air knife assembly, a squeeze roller assembly, a purge assembly and a negative pressure suction assembly. The support frame has a accommodating space; the air knife assembly is in the accommodating space and connected to the support frame, and is used to purge the oil on the surface of the strip; the squeeze roller assembly is arranged downstream of the air knife assembly and connected to the support frame, and is used to squeeze the oil on the surface of the strip; the purge assembly is arranged downstream of the squeeze roller assembly, and is used to purge the residual oil on the surface of the strip; the negative pressure suction assembly is arranged downstream of the purge assembly, and is used to suck and discharge the oil mist generated by the purge.

[0006] In one or more embodiments of the utility model, the squeeze roller assembly includes: a first connecting frame, an upper squeeze roller, a second connecting frame and a lower squeeze roller group. The first connecting frame is connected to the support frame and can move up and down relative to the support frame; the upper squeeze roller group is connected to the first connecting frame and can move together with the first connecting frame; the second connecting frame is connected to the support frame and can move up and down relative to the support frame; the lower squeeze roller group is arranged on the second connecting frame and is located below the upper squeeze roller group, and the lower squeeze roller group can move together with the second connecting frame; wherein, there is a gap between the upper squeeze roller group and the lower squeeze roller group for the strip to pass through, and the upper squeeze roller group and the lower squeeze roller group can move relative to each other to adjust the gap.

[0007] In one or more embodiments of the utility model, the upper squeeze roller group and the lower squeeze roller group include: a squeeze roller and a support roller. The squeeze rollers of the upper squeeze roller group and the lower squeeze roller group can approach each other and squeeze the strip; the support roller is arranged against the squeeze roller and is arranged on the side of the squeeze roller away from the strip.

[0008] In one or more embodiments of the present invention, a connecting spring and a control cylinder are provided between the first connecting frame and the supporting frame, and the control cylinder is used to control the first connecting frame and the upper squeeze roller group to move up and down relative to the supporting frame.

[0009] In one or more embodiments of the present invention, a lifting mechanism is provided at the bottom of the second connecting frame for lifting and lowering the second connecting frame and the lower squeezing roller group.

[0010] In one or more embodiments of the utility model, the wind knife assembly includes: a third connecting frame, a wind knife, a wind knife oil cylinder and a magnet. The third connecting frame is connected to the support frame and can move up and down relative to the support frame; the wind knife is arranged on the third connecting frame along a direction perpendicular to the moving direction of the strip; one end of the wind knife oil cylinder is connected to the support frame, and the other end is connected to the third connecting frame, for controlling the third connecting frame to move up and down relative to the support frame; the magnet is arranged on one side of the wind knife, for absorbing some impurities on the surface of the strip.

[0011] In one or more embodiments of the utility model, the purge assembly includes: a fourth connecting frame, an upper purge nozzle, a lower purge nozzle and a purge oil cylinder. The fourth connecting frame is connected to the support frame and can move up and down relative to the support frame; the upper purge nozzle is arranged on the fourth connecting frame and above the strip; the lower purge nozzle is arranged below the strip; one end of the purge oil cylinder is connected to the fourth connecting frame, and the other end is connected to the support frame, for controlling the fourth connecting frame to move up and down relative to the support frame.

[0012] In one or more embodiments of the present invention, the negative pressure suction assembly includes: a suction part and a suction duct. The suction part is arranged on one side of the upper purge nozzle; one end of the suction duct is connected to the suction part, and the other end extends upward to the outside of the support frame and is connected to the external centrifugal fan.

[0013] In one or more embodiments of the present invention, the suction portion extends downward to form a plurality of suction nozzles, and the plurality of suction nozzles and the upper purge nozzles are alternately arranged.

[0014] In one or more embodiments of the present invention, the openings of the upper purge nozzle and the lower purge nozzle extend in a direction perpendicular to the moving direction of the strip, and the openings are elongated openings.

[0015] Compared with the prior art, the strip degreasing device of the utility model has a smaller diameter of the squeeze roller and a smaller moment of inertia, so it is not easy to scratch the strip. Secondly, the setting of the support roller can prevent the squeeze roller from bending and can make the squeeze roller have a better squeeze effect. Thirdly, the air knife assembly and the purge assembly can ensure that no impurities and oil remain on the surface of the strip. In addition, the negative pressure suction assembly can absorb and discharge the oil mist blown out to prevent the oil mist from condensing and dripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a strip degreasing device in one embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a squeeze roller assembly in one embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of a purge assembly in one embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of an air knife assembly in one embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of a squeeze roller and a support roller in one embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of an air knife in one embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of a lower purge nozzle in one embodiment of the utility model.

[0024] Description of main reference numerals:

[0025] 1-support frame, 2-wind knife assembly, 21-third connecting frame, 22-wind knife, 23-wind knife cylinder, 24-magnet, 3-squeezing roller assembly, 31-first connecting frame, 32-upper squeezing roller group, 33-second connecting frame, 34-lower squeezing roller group, 35-squeezing roller, 36-support roller, 37-connecting spring, 38-control cylinder, 39-lifting mechanism, 4-purge assembly, 41-fourth connecting frame, 42-upper purge nozzle, 43-lower purge nozzle, 44-purge cylinder, 5-negative pressure suction assembly, 51-suction part, 511-suction nozzle, 52-sucking smoke duct. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] like Figure 1-7 As shown, a strip oil removal device in one embodiment of the utility model includes: a support frame 1, an air knife assembly 2, a squeeze roller assembly 3, a purge assembly 4 and a negative pressure suction assembly 5. An accommodating space is provided inside the support frame 1. The air knife assembly 2 is arranged in the accommodating space and connected to the support frame 1, and is used to purge the oil on the surface of the strip. The air knife assembly 2 can be arranged on the upstream side along the moving direction of the strip. The squeeze roller assembly 3 is arranged downstream of the air knife assembly 2 and connected to the support frame 1, and is used to squeeze out the oil on the surface of the strip. The purge assembly 4 is arranged downstream of the squeeze roller assembly 3, and is used to purge the residual oil on the surface of the strip. The negative pressure suction assembly 5 is arranged downstream of the purge assembly 4, and is used to suck and discharge the purged oil mist.

[0028] In the above embodiment, the wind knife assembly 2, the squeeze roller assembly 3, the purge assembly 4 and the negative pressure suction assembly 5 are sequentially arranged along the moving direction of the strip. The wind knife assembly 2 can pre-purge most of the oil and impurities on the surface of the strip. The squeeze roller assembly 3 can squeeze the oil on the surface of the strip. The purge assembly 4 can purge the surface of the strip after extrusion, so as to remove the residual oil on the surface of the strip. The negative pressure suction assembly 5 can cooperate with the purge assembly 4 to suck away the purged oil mist. With the above structure, the strip degreasing device can first purge the surface of the strip, and then purge it twice after extrusion, and the purged oil mist can be quickly sucked away by the negative pressure suction assembly 5, while ensuring the degreasing efficiency of the squeeze roller 35 without scratching the surface of the strip.

[0029] In one embodiment, if Figure 1 and Figure 2 As shown, the squeeze roller assembly 3 includes: a first connecting frame 31, an upper squeeze roller group 32, a second connecting frame 33 and a lower squeeze roller group 34. The first connecting frame 31 is connected to the support frame 1 and can move up and down relative to the support frame 1. The upper squeeze roller group 32 is connected to the first connecting frame 31 and can move together with the first connecting frame 31. The second connecting frame 33 is connected to the support frame 1 and can move up and down relative to the support frame 1. The lower squeeze roller group 34 is arranged on the second connecting frame 33 and is located below the upper squeeze roller group 32, and the lower squeeze roller group 34 can move together with the second connecting frame 33. There is a gap between the upper squeeze roller group 32 and the lower squeeze roller group 34 for the strip to pass through. The size of the gap can be adjusted according to the thickness of the strip. Specifically, the upper squeeze roller group 32 and the lower squeeze roller group 34 can move closer to or farther away from each other. When the strip needs to be squeezed, the upper squeeze roller set 32 ​​and the lower squeeze roller set 34 are moved closer to each other, thereby squeezing the strip to squeeze out the oil absorbed on the strip.

[0030] Further, such as Figure 5 As shown, the upper squeeze roller group 32 and the lower squeeze roller group 34 both include a squeeze roller 35 and a support roller 36. The support roller 36 is arranged against the squeeze roller 35 and is arranged on the side of the squeeze roller 35 away from the strip. The squeeze rollers 35 of the upper squeeze roller group 32 and the lower squeeze roller group 34 can approach each other and squeeze the strip. The setting of the support roller 36 can provide support for the squeeze roller 35 to prevent the squeeze roller 35 from bending. The diameter of the squeeze roller 35 can be reduced to reduce the moment of inertia to avoid scratching the strip.

[0031] In order to more accurately control the up and down movement distance of the upper squeeze roller group 32, a connecting spring 37 and a control cylinder 38 are provided between the first connecting frame 31 and the support frame 1. The control cylinder 38 is connected to the first connecting frame 31, and is used to control the upper squeeze roller group 32 and the first connecting frame 31 to move up and down together. The elastic force of the connecting spring 37 can balance the gravity of the upper squeeze roller group 32, thereby reducing the influence of the gravity of the upper squeeze roller group 32 on the control cylinder 38. In one embodiment, the elastic force of the connecting spring 37 can offset all or part of the gravity of the upper squeeze roller group 32. Due to the presence of the connecting spring 37, the influence of the gravity of the upper squeeze roller group 32 on the control cylinder 38 is weakened, and the control of the moving distance and extrusion force of the upper squeeze roller group 32 by the control cylinder 38 can be more accurate.

[0032] In addition, a lifting mechanism 39 is provided at the bottom of the second connecting frame 33, which is used to lift the second connecting frame 33 so as to control the movement of the lower squeezing roller set 34. In one embodiment, the lifting mechanism 39 may include a driving motor and a lifting rod, and the driving motor may drive the lifting rod to rise or fall, thereby driving the second connecting frame 33 and the lower squeezing roller set 34 to move up and down.

[0033] In one embodiment, if Figure 1 As shown, the wind knife assembly 2 includes a third connecting frame 21, a wind knife 23, a wind knife cylinder 23 and a magnet 24.

[0034] The third connecting frame 21 is connected to the supporting frame 1 and can move up and down relative to the supporting frame 1. The wind knife 23 is arranged on the third connecting frame 21 in a direction perpendicular to the moving direction of the strip. The wind knife oil cylinder 23 drives the wind knife 23 to move up and down by driving the third connecting frame 21. Specifically, the width of the wind knife 23 can be equal to or slightly larger than the width of the maximum strip, so that the wind knife 23 can blow more fully on the surface of the strip.

[0035] like Figure 4 and Figure 6 As shown, one end of the wind knife oil cylinder 23 is connected to the support frame 1, and the other end is connected to the third connecting frame 21, which is used to control the third connecting frame 21 to move up and down to adapt to different working conditions. The magnet 24 is arranged on one side of the wind knife 23, and is used to absorb metal impurities on the surface of the strip. The arrangement of the magnet 24 can absorb the metal impurities on the surface of the strip that have not been blown away, thereby preventing the metal impurities from scratching the surface of the strip when squeezing.

[0036] In one embodiment, if Figure 1 and Figure 3 As shown, the purge assembly 4 includes: a fourth connecting frame 41 , an upper purge nozzle 42 , a lower purge nozzle 43 and a purge cylinder 44 .

[0037] The fourth connecting frame 41 is connected to the supporting frame 1 and can move up and down relative to the supporting frame 1. The purge oil cylinder 44 is connected to the fourth connecting frame 41 at one end and the supporting frame 1 at the other end, and is used to control the fourth connecting frame 41 to move up and down.

[0038] The upper purge nozzle 42 is disposed on the fourth connecting frame 41, and the upper purge nozzle 42 is disposed above the strip. The lower purge nozzle 43 is disposed below the strip. In a preferred embodiment, the upper purge nozzle 42 and the lower purge nozzle 43 are disposed in two rows, and each row of the upper purge nozzle 42 and the lower purge nozzle 43 is disposed in plurality. The extension direction of each row of purge nozzles is perpendicular to the moving direction of the strip. The arrangement of the upper and lower purge nozzles enables simultaneous purge of the front and back sides of the strip, making the purge more complete. In addition, if Figure 7 As shown, the openings of the upper purge nozzle 42 and the lower purge nozzle 43 extend in a direction perpendicular to the strip moving direction, and the openings are elongated openings. The elongated openings can increase the blowing force of the upper purge nozzle 42 and the lower purge nozzle 43 and reduce the noise of the nozzles.

[0039] In one embodiment, the negative pressure suction assembly 5 includes: a suction portion 51 and a suction duct 52. The suction portion 51 is disposed on one side of the upper purge nozzle 42. One end of the suction duct 52 is connected to the suction portion 51, and the other end extends upward to the outside of the support frame 1 and is connected to the external centrifugal fan. Specifically, the suction portion 51 extends downward to form a plurality of suction nozzles 511, and the plurality of suction nozzles 511 are alternately arranged with the upper purge nozzle 42, so that a suction nozzle 511 is arranged behind each upper purge nozzle 42. Specifically, when the upper and lower squeezing roller groups 34 squeeze out most of the oil carried by the strip, the remaining oil will be blown into the air by the purge assembly 4 to form oil mist. The negative pressure suction assembly 5 can promptly remove the oil mist floating in the air to prevent the oil from falling back onto the surface of the strip.

[0040] In summary, the strip degreasing device of the utility model has a smaller diameter of the squeeze roller 35 and a smaller moment of inertia, so it is not easy to scratch the strip. Secondly, the setting of the support roller 36 can prevent the squeeze roller 35 from bending and can make the squeeze roller 35 have a better squeezing effect. Thirdly, the setting of the air knife component 2 and the purge component 4 can ensure that no impurities and oil remain on the surface of the strip. In addition, the negative pressure suction component 5 can absorb and discharge the purged oil mist in time to prevent the oil from condensing and dripping back.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] 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.

Claims

1. A strip degreasing device, characterized in that: include: A supporting frame having a containing space; An air knife assembly, located in the accommodating space and connected to the supporting frame, for blowing oil off the surface of the strip; A squeeze roller assembly, disposed downstream of the air knife assembly and connected to the support frame, for squeezing out the oil on the surface of the strip; A purge assembly, disposed downstream of the squeeze roller assembly, for sweeping residual oil on the surface of the strip; and The negative pressure suction component is arranged downstream of the purge component and is used for sucking and discharging the oil mist generated by the purge.

2. The strip degreasing device according to claim 1, characterized in that: The squeeze roller assembly comprises: A first connecting frame, connected to the supporting frame and capable of moving up and down relative to the supporting frame; an upper squeeze roller group connected to the first connecting frame and capable of moving together with the first connecting frame; A second connecting frame connected to the supporting frame and capable of moving up and down relative to the supporting frame; and a lower squeezing roller group, arranged on the second connecting frame and located below the upper squeezing roller group, the lower squeezing roller group being able to move together with the second connecting frame; There is a gap between the upper squeezing roller group and the lower squeezing roller group for the strip to pass through, and the upper squeezing roller group and the lower squeezing roller group can move relative to each other to adjust the gap.

3. The strip degreasing device according to claim 2, characterized in that: The upper squeeze roller group and the lower squeeze roller group include: Squeezing rollers, wherein the squeezing rollers of the upper squeezing roller group and the lower squeezing roller group are able to approach each other and squeeze the strip; and The supporting roller is arranged against the squeezing roller and is disposed on a side of the squeezing roller away from the strip.

4. The strip degreasing device according to claim 2, characterized in that: A connecting spring and a control cylinder are provided between the first connecting frame and the supporting frame, and the control cylinder is used to control the first connecting frame and the upper squeeze roller group to move up and down relative to the supporting frame.

5. The strip degreasing device according to claim 2, characterized in that: A lifting mechanism is provided at the bottom of the second connecting frame for lifting the second connecting frame and the lower squeezing roller group.

6. The strip degreasing device according to claim 1, characterized in that: The air knife assembly comprises: A third connecting frame, connected to the supporting frame and capable of moving up and down relative to the supporting frame; An air knife is arranged on the third connecting frame in a direction perpendicular to the moving direction of the strip; An air knife cylinder, one end of which is connected to the support frame, and the other end of which is connected to the third connecting frame, and is used to control the third connecting frame to move up and down relative to the support frame; and The magnet is arranged on one side of the wind knife and is used to absorb some impurities on the surface of the strip.

7. The strip degreasing device according to claim 1, characterized in that: The purge assembly comprises: a fourth connecting frame connected to the supporting frame and capable of moving up and down relative to the supporting frame; an upper purge nozzle, arranged on the fourth connecting frame and above the strip; A lower purge nozzle is disposed below the strip; and A purge oil cylinder, one end of which is connected to the fourth connecting frame and the other end of which is connected to the supporting frame, is used to control the fourth connecting frame to move up and down relative to the supporting frame.

8. The strip degreasing device according to claim 7, characterized in that: The negative pressure suction component comprises: a suction portion disposed on one side of the upper purge nozzle; and The exhaust duct has one end connected to the suction part and the other end extending upward to the outside of the support frame and connected to the external centrifugal fan.

9. The strip degreasing device according to claim 8, characterized in that: The suction portion extends downward to form a plurality of suction nozzles, and the plurality of suction nozzles and the upper purge nozzles are alternately arranged.

10. The strip degreasing device according to claim 7, characterized in that: The openings of the upper purging nozzle and the lower purging nozzle extend in a direction perpendicular to the moving direction of the strip, and the openings are elongated openings.

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