Horizontal roller coater

Abstract

The utility model relates to a horizontal roller coater which comprises a lower fixing support, a lower sliding support, an upper fixing support, an upper suspension frame and an upper supporting frame, the lower sliding support is connected to the lower fixing support in a sliding mode, and a lower roller set is installed on the lower sliding support. The upper fixing support comprises a vertical section which is fixedly connected to the lower fixing support in a vertically downward mode and a transverse section which is transversely arranged, the upper roller set is installed on the transverse section, the upper supporting frame is fixedly arranged above the upper fixing support, and the lower end of the upper suspension frame is fixedly connected to the end, away from the vertical section, of the transverse section. The upper end of the upper suspension frame is hung on the upper support frame; a locking part is arranged at the end, away from the vertical section, of the transverse section, a locking matching part is arranged on the lower sliding support and is configured to be opposite to the locking part in a staggered mode when the lower sliding support and the lower roller set ascend, and the lower sliding support and the lower roller set are locked at the ascending position through matched connection of the locking part and the locking matching part.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-rolled strip steel coating, in particular to a horizontal roller coating machine. Background Art

[0002] In the production process of cold-rolled galvanizing, color coating, silicon steel and other units, a roller coater is usually required to apply a chemical film to the surface of the strip. The horizontal roller coater is a commonly used roller coater at present. In terms of structure, the horizontal roller coater includes an upper roller group and a lower roller group. The upper roller group and the lower roller group are configured to be relatively close or separated. When the upper roller group and the lower roller group are relatively close, they enter the coating state, and the upper roller group and the lower roller group clamp the strip to coat both sides of the strip. When the upper roller group and the lower roller group are relatively far apart, they enter the open state, leaving space between the two for the strip to enter and exit, or space for equipment maintenance. At present, the upper roller group and the lower roller group in the coating state are usually not equipped with a locking structure to lock the position of the two. Although this facilitates the opening of the upper roller group and the lower roller group, it is not conducive to the stability of the coating. Due to the shaking of the equipment, the distance between the upper roller group and the lower roller group during the coating operation is prone to change, resulting in poor coating effect. Utility Model Content

[0003] In view of the above problems, the utility model proposes a horizontal roller coater with optimized structure.

[0004] The utility model is implemented by the following technical solutions:

[0005] The utility model proposes a horizontal roller coating machine, comprising an upper roller group and a lower roller group, wherein the upper roller group is relatively arranged above the lower roller group, and further comprising a lower fixed bracket, a lower sliding bracket, an upper fixed bracket, an upper suspension bracket and an upper support bracket, wherein the lower sliding bracket can be slidably connected to the lower fixed bracket, and the lower roller group is installed on the lower sliding bracket, and a lifting mechanism is driven and connected to the lower sliding bracket to drive the lower sliding bracket and the lower roller group to move up and down, and the upper fixed bracket is an inverted "L"-shaped structure, comprising a vertical section fixedly connected vertically downward to the lower fixed bracket and a horizontal section fixedly connected to the lower fixed bracket. A transverse section is provided, and the upper roller group is installed on the transverse section, the upper support frame is fixedly provided above the upper fixed bracket, the lower end of the upper suspension bracket is fixedly connected to the end of the transverse section away from the vertical section, and the upper end of the upper suspension bracket is hung on the upper support frame; a locking part is provided at the end of the transverse section away from the vertical section, and a locking matching part is provided on the lower sliding bracket, and the locking matching part is configured to be able to be displaced relative to the locking part when the lower sliding bracket and the lower roller group are raised, and the lower sliding bracket and the lower roller group are locked in the raised position through the locking part, the locking matching part and the matching connection.

[0006] Wherein, preferably, the locking portion is provided at the axial outer end of the upper roller group, and the locking fitting portion is provided at the axial outer end of the lower roller group.

[0007] Preferably, it also includes a bottom track, the lower fixed bracket is movably set on the bottom track through rollers, the upper support frame is provided with a top track, and the upper suspension frame is movably set on the top track through rollers.

[0008] Wherein, preferably, the locking portion is a hook pin that can be movably extended and retracted, and the locking matching portion is a hanging hole, and the locking portion and the locking matching portion are connected by the hook pin passing through the hanging hole.

[0009] Among them, preferably, the upper roller group includes an upper liquid collection roller and an upper coating roller that are in contact with each other on the outer side, and the lower roller group includes a lower liquid collection roller and a lower coating roller that are in contact with each other on the outer side. The upper liquid collection roller and the lower liquid collection roller are used to dip the coating liquid and transfer the coating liquid to the upper coating roller and the lower coating roller respectively by rotation. The upper coating roller and the lower coating roller are used to coat both sides of the strip conveyed between the two in a clamping manner.

[0010] Preferably, the upper liquid pickup roller is configured to be able to move relatively close to or away from the upper coating roller.

[0011] Preferably, the lower liquid pickup roller is configured to be able to be relatively close to or away from the lower coating roller.

[0012] Preferably, a coating liquid pan for holding the coating liquid is further included, and two coating liquid pans are respectively arranged below the upper liquid taking roller and the lower liquid taking roller, and the coating liquid pans are raised and lowered by a lifting device.

[0013] Preferably, a liquid receiving pan is further provided below the upper roller group and below the lower roller group.

[0014] The present invention has the following beneficial effects: In the present invention, the upper roller group and the upper fixed bracket are cantilevered above the lower roller group. One end of the upper fixed bracket is fixed to the lower fixed bracket, and the other end is suspended, so that the upper fixed bracket can be stably supported. The space below the end of the horizontal section away from the vertical section is open, which makes the space for the strip steel to enter and exit between the lower roller group and the upper roller group larger and also makes it easier to maintain the equipment. When the locking part and the locking matching part are connected to achieve locking, the relative position of the lower roller group and the upper roller group can remain unchanged, thereby increasing the stability of the coating process. On the other hand, when the locking part and the locking matching part are connected to achieve locking, the lower fixed bracket and the upper fixed bracket are connected, and the lower fixed bracket can also play the role of supporting the upper fixed bracket and the upper roller group, sharing the weight of the upper roller group. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the horizontal roller coater in the embodiment in the open state;

[0016] Figure 2 1 is a left side view of the horizontal roller coater in the embodiment in the open state;

[0017] Figure 3 It is a left side view of the horizontal roller coater in the embodiment in the coating state. DETAILED DESCRIPTION

[0018] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0019] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0020] See Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, a horizontal roller coater is provided. For the convenience of description, the following description will be based on the static orientation of the horizontal roller coater in the installed and used state. The horizontal roller coater includes an upper roller group 1 and a lower roller group 2. The upper roller group 1 is relatively arranged above the lower roller group 2. The upper roller group 1 includes an upper liquid collection roller 11 and an upper coating roller 12 that are in contact with each other on the outer peripheral side. The lower roller group 2 includes a lower liquid collection roller 21 and a lower coating roller 22 that are in contact with each other on the outer peripheral side. The upper liquid collection roller 11 and the lower liquid collection roller 21 are used to dip the coating liquid. In this embodiment, the horizontal roller coater also includes a coating liquid tray (not shown in the figure) for holding the coating liquid. The two coating liquid trays are respectively arranged below the upper liquid collection roller 11 and the lower liquid collection roller 21. The coating liquid tray is raised and lowered by a lifting device. During normal production, the lifting device is adjusted to raise the coating liquid tray to the working position. The upper liquid collection roller 11 and the lower liquid collection roller 21 are partially immersed in the coating liquid of the coating liquid tray and rotate to dip the coating liquid. When the coating liquid tray needs to be cleaned, the lifting device is adjusted to lower the coating liquid tray to a low position, and then the coating liquid tray is taken out for cleaning. Because the upper liquid pickup roller 11 and the upper coating roller 12 are in contact with each other at their outer circumferences, the upper liquid pickup roller 11 can transfer the coating liquid to the upper coating roller 12 through rotation. Similarly, because the lower liquid pickup roller 21 and the lower coating roller 22 are in contact with each other at their outer circumferences, the lower liquid pickup roller 21 can transfer the coating liquid to the lower coating roller 22 through rotation. A channel is formed between the upper coating roller 12 and the lower coating roller 22, which clamps the steel strip 100. The steel strip 100 is conveyed forward in this channel, and the upper coating roller 12 and the lower coating roller 22, which clamp the steel strip 100, coat both sides of the steel strip 100. In addition to steel strip 100, in other embodiments, the horizontal roller coater can also coat other strip-like objects.

[0021] The horizontal roller coater also includes a lower fixed bracket 3, a lower sliding bracket 4, an upper fixed bracket 5, an upper suspension bracket 6, and an upper support bracket 7. The lower fixed bracket 3 serves as the frame of the horizontal roller coater. The lower sliding bracket 4 is slidably connected to the lower fixed bracket 3. The lower roller assembly 2 is mounted on the lower sliding bracket 4. A lifting mechanism (not shown) is connected to the lower sliding bracket 4 to drive the lower sliding bracket 4 and the lower roller assembly 2 to rise and fall. The lifting mechanism can be an oil cylinder, an air cylinder, etc. When the lower roller assembly 2 rises, the lower roller assembly 2 and the upper roller assembly 1 are close to each other and can clamp the strip 100, and the horizontal roller coater enters the coating state. When the lower roller assembly 2 descends, the lower roller assembly 2 and the upper roller assembly 1 separate, and the horizontal roller coater enters the open state.

[0022] The upper fixing bracket 5 is an inverted "L" shaped structure (its inverted "L" shape is as shown in FIG. Figure 1 The upper roller assembly 1 is mounted on the transverse section 51, as shown in the dashed line. Figure 2 The upper support frame 7 is fixedly arranged above the upper fixed support frame 5, the lower end of the upper suspension frame 6 is fixedly connected to the end of the horizontal section 51 away from the vertical section 52, and the upper end of the upper suspension frame 6 is hung on the upper support frame 7. With this arrangement, the upper roll assembly 1 and the upper fixed support frame 5 are cantilevered above the lower roll assembly 2. One end of the upper fixed support frame 5 is fixed to the lower fixed support frame 3, and the other end is suspended, so that the upper fixed support frame 5 can be stably supported. The space below the end of the horizontal section 51 away from the vertical section 52 is open, which makes the space for strip steel to enter and exit between the lower roll assembly 2 and the upper roll assembly 1 larger and also makes equipment maintenance more convenient.

[0023] A locking portion 8 is provided at the end of the transverse section 51 away from the vertical section, and a locking mating portion 9 is provided on the lower sliding bracket 4. The locking mating portion 9 is configured to be offset relative to the locking portion 8 when the lower sliding bracket 4 and the lower roller assembly 2 are raised. The locking portion 8 and the locking mating portion 9 are connected in a coordinated manner to lock the lower sliding bracket 4 and the lower roller assembly 2 in the raised position. In this embodiment, a connecting plate 50 is fixedly provided at the end of the transverse section 51 away from the vertical section. The connecting plate 50 and the lower sliding bracket 4 are vertically offset, and the locking portion 8 is provided on the connecting plate 50. The locking portion 8 and the locking mating portion 9 can be implemented using any locking structure. In this embodiment, the locking portion 8 is a movable and retractable hook pin, and the extension and retraction of the locking portion 8 can be controlled by a drive device such as a cylinder. The locking mating portion 9 is a hanging hole, and the locking portion 8 and the locking mating portion 9 are connected by the hook pin passing through the hanging hole. When the locking portion 8 and the locking fitting portion 9 are connected in cooperation to achieve locking, the relative positions of the lower roller group 2 and the upper roller group 1 can remain unchanged, thereby increasing the stability of the coating process. On the other hand, when the locking portion 8 and the locking fitting portion 9 are connected in cooperation to achieve locking, the lower fixed bracket 3 and the upper fixed bracket 5 are connected, and the lower fixed bracket 3 can also play the role of supporting the upper fixed bracket 5 and the upper roller group 1, sharing the weight of the upper roller group 1. In this embodiment, the locking portion 8 is provided at the axial outer end of the upper roller group 1, and the locking fitting portion 9 is provided at the axial outer end of the lower roller group 1. Because this embodiment suspends the upper roller group 1 and the upper fixed bracket 5 by the upper suspension bracket 6, the axial outer ends of the upper roller group 1 and the lower roller group 1 have sufficient installation space to arrange the locking portion 8 and the locking fitting portion 9. Therefore, the locking portion 8 and the locking fitting portion 9 of the horizontal roller coater of this embodiment can be implemented with a simple structure and a small space occupation.

[0024] The horizontal roller coater also includes a bottom track (not shown in the figure), on which the lower fixed bracket 3 is movably mounted via rollers, and the upper support frame 7 is provided with a top track 71, on which the upper suspension bracket 6 is movably mounted via rollers. This arrangement allows the horizontal roller coater to be repositioned and quickly switched on the track when the roller coater is required to be brought online or taken offline.

[0025] The sliding movement of the lower sliding bracket 4 adjusts the clamping force between the upper and lower coating rollers 12, 22, and the steel strip 100, thereby controlling the thickness and uniformity of the coating applied by the upper and lower coating rollers 12, 22. Furthermore, in this embodiment, the upper liquid pickup roller 11 is configured to be relatively close to or distant from the upper coating roller 12. This allows for adjustment of the amount of coating liquid transferred from the upper liquid pickup roller 11 to the upper coating roller 12, as well as the contact pressure between the upper liquid pickup roller 11 and the upper coating roller 12, thereby controlling the coating thickness of the upper coating roller 12. The lower liquid pickup roller 21 is configured to be relatively close to or distant from the lower coating roller 22, as well as the contact pressure between the lower liquid pickup roller 21 and the lower coating roller 22, thereby controlling the coating thickness of the lower coating roller 22. Through the combined adjustment of these methods, the coating thickness and uniformity can be more precisely and flexibly controlled, allowing the horizontal roller coater to adapt to a variety of coating liquids with different properties. The position movement of the upper liquid pickup roller 11 and the lower liquid pickup roller 21 can be achieved by a driving mechanism such as a linear motion cylinder or a linear stepping motor, and a pressure sensor can also be provided to sense the contact pressure between the upper liquid pickup roller 11 and the upper coating roller 12, as well as the contact pressure between the lower liquid pickup roller 21 and the lower coating roller 22. For example, the pressure sensor can be provided to abut against the upper liquid pickup roller 11. When the upper liquid pickup roller 11 and the upper coating roller 12 abut against each other, the pressure exerted by the upper coating roller 12 on the upper liquid pickup roller 11 is transmitted to the pressure sensor, so that the pressure sensor senses the pressure value. Through the measurement feedback of the pressure sensor, the spacing between the upper liquid pickup roller 11 and the upper coating roller 12, as well as the spacing between the lower liquid pickup roller 21 and the lower coating roller 22, can be more accurately controlled.

[0026] In this embodiment, each coating roller and liquid pickup roller is driven by a variable frequency gear motor via a universal joint according to the coating process speed, which also facilitates the control of the speed changes of each coating roller and liquid pickup roller. The sliding of the lower sliding bracket 4 can quickly separate the upper roller group 1 and the lower roller group 2. Through electrical control means, the upper roller group 1 and the lower roller group 2 can be quickly opened and closed when the steel strip 100 passes through the weld seam, and the upper roller group 1 and the lower roller group 2 can be completely moved to an offline position away from the steel strip 100 during maintenance operations. A liquid receiving pan (not shown) is also provided below the upper roller group 1 and the lower roller group 2 to receive dripping coating liquid or splashing flushing water during rinsing to prevent liquid contamination of the working environment.

[0027] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims shall fall within the scope of protection of the present invention.

Claims

1. A horizontal roller coater, characterized in that: The cam is fixedly mounted on the support frame, and the lower end of the cam is fixedly mounted on the support frame, and the lower end of the cam is fixedly mounted on the support frame. A locking portion is provided at one end of the horizontal section away from the vertical section, and a locking fitting portion is provided on the lower sliding bracket. The locking fitting portion is configured to be displaced relative to the locking portion when the lower sliding bracket and the lower roller group are raised, and the lower sliding bracket and the lower roller group are locked in the raised position through the locking portion and the locking fitting portion and the fitting connection.

2. The horizontal roller coater according to claim 1, characterized in that: The locking portion is arranged at the outer end of the upper roller group in the axial direction, and the locking matching portion is arranged at the outer end of the lower roller group in the axial direction.

3. The horizontal roller coater according to claim 1, characterized in that: It also includes a bottom track, a lower fixed bracket is movably arranged on the bottom track through rollers, an upper support frame is provided with a top track, and an upper suspension frame is movably arranged on the top track through rollers.

4. The horizontal roller coater according to claim 1, characterized in that: The locking portion is a hook pin that can be movably extended and retracted, and the locking matching portion is a hanging hole. The locking portion and the locking matching portion are connected by the hook pin passing through the hanging hole.

5. The horizontal roller coater according to claim 1, characterized in that: The upper roller group includes an upper liquid collection roller and an upper coating roller that are in contact with each other on the outer circumference, and the lower roller group includes a lower liquid collection roller and a lower coating roller that are in contact with each other on the outer circumference. The upper liquid collection roller and the lower liquid collection roller are used to dip the coating liquid and transfer the coating liquid to the upper coating roller and the lower coating roller respectively by rotating. The upper coating roller and the lower coating roller are used to coat both sides of the strip conveyed between the two in a clamping manner.

6. The horizontal roller coater according to claim 5, characterized in that: The upper liquid pickup roller is configured to be able to be relatively close to or away from the upper coating roller.

7. The horizontal roller coater according to claim 5, characterized in that: The lower liquid pickup roller is configured to be able to be relatively close to or away from the lower coating roller.

8. The horizontal roller coater according to claim 1, characterized in that: It also includes a coating liquid pan for holding the coating liquid. The two coating liquid pans are respectively arranged below the upper liquid taking roller and the lower liquid taking roller. The coating liquid pans are raised and lowered by the lifting device.

9. The horizontal roller coater according to claim 1, characterized in that: A liquid receiving pan is also provided below the upper roller group and below the lower roller group.

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