channel guide

Abstract

A channel steel guide includes a base, the base is provided with left side plate and right side plate, the plate surface is located in the vertical plane and the plate surface is parallel to each other, the bottom between the left side plate and the right side plate is provided with a core plate, the left side plate, the right side plate and the core plate are enclosed into a channel shape with the notch facing upward, the opposite side edges of the core plate are respectively connected with the lower edges of the opposite surfaces of the left side plate and the right side plate to form a guide cooperation of the relative sliding displacement in the length direction of the channel, and the adjusting mechanism for driving the relative displacement of the core plate relative to the left side plate and the right side plate in the length direction of the channel is arranged between the core plate and the left side plate and the right side plate. The technical scheme ensures that the core plate of the guide bottom is in close fitting cooperation with the roll surface.

Description

Technical Field

[0001] This utility model relates to auxiliary devices for rolling channel steel and I-beam type steel, specifically to a mill exit guide for rolling channel steel. Background Technology

[0002] In construction sites such as foundation pits, water conservancy projects, and integrated pipe corridors, steel sheet pile support is usually required. This is a continuous wall-type retaining structure formed by the orderly connection of hot-rolled steel sections (such as U-shaped and Z-shaped) with interlocking or clamping jaws. The steel section belongs to the channel steel category. During rolling, the front end of the guide core plate needs to be placed close to the roll surface to provide contact support for the web or bottom plate of the channel steel. As the rolling process continues, both the roll and the guide core plate will wear, and a gap will appear between the front end of the guide core plate and the roll surface, and the gap will gradually increase. Therefore, it is necessary to adjust the position of the guide core plate to eliminate the gap between its front end and the roll surface.

[0003] The document titled "A Channel Steel Outlet Sliding Guide Assembly" (Document No. CN 218532336 U, hereinafter referred to as Document 1) describes a method that uses wedges 4 and 6 on the guide cover 3 and inserts them from the channel steel inlet direction to prevent loosening during long-term use. This greatly improves the tightness of the connection between the guide cover 3 and the guide lower groove 2. However, in Document 1, due to the difference in wear between the two sides of the guide lower groove 2 and the bottom of the groove (i.e., the bottom of the groove is more severely worn), when the guide lower groove 2 is adjusted to move closer to the roll, the front ends of the two sides of the groove have already contacted the roll surface, while the front end of the groove bottom still maintains a large distance from the roll surface and cannot continue to approach. As a result, the rolling quality of the channel steel cannot be guaranteed.

[0004] Titled "A Channel Steel Outlet Guide Device" (Document No. CN217095026U, hereinafter referred to as Document 2), Document 2 specifically addresses the difficulty in achieving a perfect fit between the guide and the roll. Furthermore, due to uneven wear at different locations in the rolling groove, gaps may exist between the guide and the roll during production. These gaps can easily cause the rolled piece to push against the guide, leading to steel pile-up accidents. Document 2 provides a solution: the upper guard plate 3 can be adjusted forward and backward using the cooperation of the first adjusting bolt 19 and the upper adjusting beam 18. Similarly, the lower guard plate 12 can be adjusted forward and backward using the cooperation of the first adjusting bolt 19 and the lower adjusting beam 17. Adjustment can effectively control the distance between the upper guard plate 3 and the lower guard plate 12 and the upper roll 10 and the lower roll 11. At the same time, since a lower guard plate support beam 20 is provided below the lower guard plate 12, the gap between the lower guard plate 12 and the roll groove can be effectively controlled through the lower guard plate support beam 20. That is to say, Reference 2 achieves the adaptation adjustment of the lower guard plate 12 and the roll surface by adjusting the front and rear positions of the lower adjustment beam 17 and the upper and lower positions of the lower guard plate support beam 20. Its adjustment scheme is complicated and the setting position of the lower guard plate support beam 20 makes its adjustment operation difficult. The reason for this is that the lower guard plate 12 is an integral structure with the groove wall and groove bottom as one piece. Utility Model Content

[0005] The purpose of this utility model is to provide a channel steel guide that ensures that the core plate at the bottom of the guide and the roll surface form a close fit.

[0006] To achieve the above objectives, the present invention adopts the following solution: a channel steel guide, including a base, on which a left side plate and a right side plate are provided, the plate surfaces of which are located in a vertical plane and are parallel to each other. A core plate is provided at the bottom between the left side plate and the right side plate. The left side plate, the right side plate and the core plate form a channel shape with the groove opening facing upward. The two sides of the core plate and the lower sides of the opposite surfaces of the left side plate and the right side plate respectively form a guiding fit for relative sliding displacement in the channel length direction. An adjustment mechanism is provided between the core plate and the left side plate and the right side plate to drive the core plate to move relative to the left side plate and the right side plate in the channel length direction.

[0007] By adopting the above technical solution, the two sides of the core plate are respectively configured with a relative displacement structure with respect to the left and right sides of the left and right sides of the core plate along the guide direction, i.e. the direction of travel of the rolled workpiece. The gap generated by the upstream end of the core plate due to contact with the roll can be eliminated by the adjustment mechanism. This overcomes the limitation and obstruction of the displacement adjustment of the core plate by the fixed left and right sides of the left and right sides, ensuring the smooth, continuous and reliable protection and guidance of the rolled workpiece by the guide. It also eliminates the impact and collision of the rolled workpiece on the front end of the core plate after it leaves the roll, while improving the service life of the guide and the quality of the rolled workpiece. Attached Figure Description

[0008] Figure 1 , 23 is a three-dimensional schematic diagram of the utility model in use;

[0009] Figure 4 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 5 This is a three-dimensional structural diagram of the right side panel;

[0011] Figure 6 This is a schematic diagram of the three-dimensional structure of the core board;

[0012] Figure 7 , 8 These are, respectively, three-dimensional structural cross-sectional views of the vertical and horizontal planes of this utility model;

[0013] Figure 9 It is a 3D diagram of the adjustment mechanism. Detailed Implementation

[0014] See Figure 1 , 2 3, Figure 1 This invention is shown at the exit end of the rolled part placed on the upper and lower rolls A and B. Figure 2 , 3 The diagram shows the arrangement between the present invention and the lower roll B. The arrows in the diagram point to the direction of travel of the rolled piece. The descriptions of the upstream and downstream directions and positions in the following description are based on this coordinate system.

[0015] Combination Figure 1 , 2 3, 6, 7, 8, The specific shape of the core plate 40 depends on the product to be processed, that is, the specific shape of the cavity formed between the core plate 40, the left side plate 20, and the right side plate 30 is determined according to the product to be rolled.

[0016] Referring to the accompanying drawings, a channel steel guide includes a base 10, on which a left side plate 20 and a right side plate 30 are disposed, with their surfaces located in a vertical plane and parallel to each other. A core plate 40 is disposed at the bottom between the left side plate 20 and the right side plate 30. The left side plate 20, the right side plate 30 and the core plate 40 form a channel shape with the slot opening facing upward. The characteristic feature is that the two sides of the core plate 40 respectively form a guiding fit with the lower sides of the opposite surfaces of the left side plate 20 and the right side plate 30 to slide relative to each other in the channel length direction. An adjustment mechanism is provided between the core plate 40 and the left side plate 20 and the right side plate 30 to drive the core plate 40 to move relative to the left side plate 20 and the right side plate 30 in the channel length direction.

[0017] In the above scheme, the base 10 and the left side plate 20 and right side plate 30 can be either an integral structure or separate components that are then connected. The key point of this application is that the core plate 40 and the left side plate 20 and right side plate 30 form a guide fit that allows for relative sliding displacement along the groove length. An adjustment mechanism is used to adjust the relative position of the core plate 40 and the left side plate 20 and right side plate 30 along the groove length. While ensuring that the positional relationship between the left side plate 20, right side plate 30 and the roll surface is determined, the positional relationship between the core plate 40 and the roll surface is adjusted separately. This facilitates adjusting the upstream end of the core plate 40 to be in contact with the roll surface, thereby ensuring uninterrupted support, protection, and guidance of the bottom plate or web of the workpiece to be rolled between the roll surface and the guide.

[0018] A strip-shaped adjustment hole 21 is provided at the bottom of the downstream section of the left side plate 20, with the major diameter of the hole parallel to the length of the groove. The strip-shaped adjustment hole 21 penetrates the surface of the left side plate 20. A slider 51 is installed inside the strip-shaped adjustment hole 21. The upstream end of the adjusting screw 52, ​​whose rod core is parallel to the length of the groove, is in rotational engagement with the slider 51. The threaded section of the adjusting screw 52 is threadedly engaged with the nut hole 53 fixed at the downstream end of the strip-shaped adjustment hole 21. The slider 51 is connected to the left side of the core plate 40. The adjusting screw 52, ​​the nut hole 53, the slider 51, and the strip-shaped adjustment hole 21 constitute the aforementioned adjustment mechanism. It should be noted that the strip-shaped adjustment hole 21 is located in the downstream section of the left side plate 20, and the nut hole 53 is set using the wall thickness of the downstream end of the strip-shaped adjustment hole 21. This not only enables the opening of the nut hole 53 but also ensures that the downstream end of the adjusting screw 52 is exposed at the downstream end of the left side plate 20.

[0019] More specifically, the slider 51 is a square block with a constricted T-shaped groove 511 on the side facing the core plate 40, and the groove opening points to the downstream end of the guide. The groove end of the T-shaped groove 511 facing the core plate 40 is open. The upstream end of the adjusting screw 52 is a T-shaped head 521 and the downstream end is a square head 522. The T-shaped head 521 is embedded in the T-shaped groove 511. The slider 51 is provided with a connecting hole 512. The through direction of the connecting hole 512 is the groove width direction of the guide and is in a position of avoiding the T-shaped groove 511. This design facilitates the assembly of the adjustment mechanism. During assembly, first, the adjusting screw 52 is screwed into the nut hole 53. Then, the slider 51 is inserted into the strip-shaped adjustment hole 21. At this point, the T-shaped head 521 and the groove end of the T-shaped groove 511 need to be aligned to smoothly complete the assembly of the T-shaped head 521 and the T-shaped groove 511. Finally, bolts are used to connect the connecting hole 512 on the slider 51 to the connecting hole on the guide strip 41 on both sides of the core plate 40. Figure 9 As shown, the T-shaped head 521 is the rod end shape formed by starting an annular groove near the upstream end of the adjusting screw 52.

[0020] Specifically, the adjustment mechanism between the core plate 40 and the left side plate 20 and right side plate 30 has the same structure. This design not only makes the components of the adjustment mechanism identical, but also ensures that the installation positions are all downstream of the left side plate 20 and right side plate 30, making installation and adjustment extremely convenient.

[0021] To improve the certainty of the positional relationship between the core plate 40 and the left side plate 20 and the right side plate 30, as well as the stability and reliability of the relative displacement, guide strips 41 are respectively provided on both sides of the core plate 40, which are fitted into the left side plate groove 22 and the right side plate groove 32 provided on the left side plate 20 and the right side plate 30, respectively. The grooves of the left side plate groove 22 and the right side plate groove 32 are arranged opposite to each other.

[0022] The core plate 40 has guide bars 41 on both sides, and locking threaded holes 411 are provided on the outer surfaces of the guide bars 41. The locking threaded holes 411 are located within the range of the locking connection holes 221 and 321 of the left and right plates respectively, which are opened at the bottom of the grooves of the left and right plates, and are connected by locking bolts. The guide bars involved in this application are inevitably subjected to impacts during operation. To ensure the stability and reliability of the fit between the adjusted core plate 40 and the roll surface, the above solution effectively solves the problem of the stability and reliability of the relative position between the core plate 40 and the left and right plates 20 and 30.

Claims

1. A channel steel guide, comprising a base (10), on which a left side plate (20) and a right side plate (30) are provided, the plate surfaces of which are located in a vertical plane and are parallel to each other, and a core plate (40) is provided at the bottom between the left side plate (20) and the right side plate (30), the left side plate (20), the right side plate (30) and the core plate (40) forming a channel shape with the groove opening facing upward, characterized in that: The two sides of the core plate (40) form a guide fit with the lower side of the opposite surface of the left side plate (20) and the right side plate (30) respectively to guide the relative sliding displacement in the groove length direction. An adjustment mechanism is provided between the core plate (40) and the left side plate (20) and the right side plate (30) to drive the core plate (40) to move relative to the left side plate (20) and the right side plate (30) in the groove length direction.

2. The channel steel guide according to claim 1, characterized in that: A strip-shaped adjustment hole (21) is provided at the bottom of the downstream section of the left side plate (20), and the long diameter of the hole is parallel to the length of the groove. The strip-shaped adjustment hole (21) penetrates the surface of the left side plate (20). A slider (51) is provided in the strip-shaped adjustment hole (21). The upstream end of the adjustment screw (52) with its core parallel to the length of the groove forms a rotational fit with the slider (51). The threaded section of the adjustment screw (52) is threadedly fitted with the nut hole (53) fixed at the downstream end of the strip-shaped adjustment hole (21). The slider (51) is connected to the left side of the core plate (40). The adjustment screw (52), the nut hole (53), the slider (51) and the strip-shaped adjustment hole (21) constitute the adjustment mechanism.

3. The channel steel guide according to claim 2, characterized in that: The slider (51) is a square block and has a T-shaped groove (511) with a narrow opening on the side facing the core plate (40) with the groove opening pointing to the downstream end of the guide. The groove end of the T-shaped groove (511) facing the core plate (40) is open. The upstream end of the adjusting screw (52) is a T-shaped head (521) and the downstream end is a square head (522). The T-shaped head (521) is embedded in the T-shaped groove (511). The slider (51) is provided with a connecting hole (512). The through direction of the connecting hole (512) is the groove width direction of the guide and is in a position of avoiding the T-shaped groove (511).

4. The channel steel guide according to claim 2, characterized in that: The adjustment mechanism between the core plate (40) and the left side plate (20) and the right side plate (30) has the same structure.

5. The channel steel guide according to claim 1, 2, 3, or 4, characterized in that: The core plate (40) is provided with guide strips (41) on both sides, which are fitted into the left side plate (20) and the right side plate (30) grooves (22) and (32) respectively. The grooves of the left side plate groove (22) and the right side plate groove (32) are arranged opposite to each other.

6. The channel steel guide according to claim 5, characterized in that: The core plate (40) is provided with guide strips (41) on both sides and locking thread holes (411) are provided on the outer side surface. The locking thread holes (411) are located within the range of the left plate locking connection hole (221) and the right plate locking connection hole (321) opened at the bottom of the groove of the left plate groove (22) and the right plate groove (32) and are connected by locking bolts.

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