A columnar forging phosphorus removal machine in high temperature state

Abstract

The utility model relates to phosphorus removal machine equipment technical field provides a kind of column type forge piece phosphorus removal machine in high temperature state, including rack, conveyor belt is placed on rack, it is characterized by: outer contour polishing subassembly, its number is two, and respectively installed in one side of conveyor belt;End face polishing subassembly, it is installed in the rack above conveyor belt.

Description

Technical Field

[0001] This utility model relates to the technical field of dephosphorization equipment, specifically to a dephosphorization machine for cylindrical forgings operating at high temperatures. Background Technology

[0002] Forgings (steel) are oxidized at high temperatures, forming a layer of cracked iron oxide scale (phosphite) on their surface. If this scale is not removed before rolling, it will be pressed into the strip surface by the rolls during rolling, affecting its surface quality. Residual iron oxide scale also accelerates roll wear and reduces roll life.

[0003] Common methods for removing oxide scale from forging:

[0004] 1. Pickling: The pickling process generates a large amount of nitrogen dioxide, which deteriorates the workshop environment and can easily cause the company to fail its environmental impact assessment.

[0005] 2. Sandblasting: Sandblasting is used to remove oxide scale from the surface of forgings after cooling and forging. During forging, oxide scale will be pressed into the forging, which can result in scrap, surface pits, and affect the service life of the mold.

[0006] 3. High-pressure water: High-pressure water equipment occupies a large area and consumes a lot of power;

[0007] 4. Mechanical friction makes it difficult to remove the outer contour and end face of cylindrical forgings at the same time. Most equipment requires two processes, such as removing the outer contour first and then the end face, or removing the end face first and then the outer contour.

[0008] Therefore, we propose a descaling machine for cylindrical forgings operating at high temperatures. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a descaling machine for cylindrical forgings operating at high temperatures. By incorporating an outer contour grinding assembly and an end face grinding assembly, the machine can maintain grinding of the forging's outer contour throughout its entire operation, while also grinding the first and last two end faces of the forging. This saves grinding steps and shortens grinding time. Furthermore, by providing movable first and second end face grinding heads, the first end face grinding head can support and push the forging towards the second end face grinding head without affecting its conveyor belt transport. When the two end face grinding heads support the first and last ends of the forging respectively, and the forging continues to rotate, the end face grinding operation of the forging is completed.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A descaling machine for cylindrical forgings operating at high temperatures includes a frame with a conveyor belt mounted on the frame, characterized in that:

[0012] Two outer contour grinding components are installed on one side of the conveyor belt, respectively.

[0013] The end face grinding assembly is mounted on a frame above the conveyor belt.

[0014] Preferably, the outer contour grinding assembly includes a grinding roller arranged along the conveyor belt's transmission direction, with bearing seats installed at both ends, and the bearing seats are slidably connected to the frame.

[0015] Preferably, the end face grinding assembly includes a first end face grinding head movable along the conveyor belt transmission direction and a second end face grinding head installed along the conveyor belt transmission direction. The first end face grinding head pushes the forging end face, which is located between the two grinding heads and is in a rotating state, into contact with the second end face grinding head.

[0016] Preferably, the first end face grinding head includes a connecting frame, which is slidably fitted on the frame, and a retractable first scraper is installed on the connecting frame. The first scraper retracts after being impacted by the forging transmitted from the beginning of the conveyor belt, so that the forging passes through the first scraper.

[0017] Preferably, the first end face grinding head includes a connecting frame, which is slidably fitted on the frame, and a liftable first scraper is installed on the connecting frame.

[0018] Preferably, the second end face grinding head includes a crossbar mounted on the frame, and a second scraper is hinged to the crossbar. Specifically, the second scraper extends outward from the side near the first scraper to form a hinged part, which is hinged to the crossbar. At the end of the second scraper away from the conveyor belt, a pusher of an actuating cylinder is also hinged, and the rotation of the second scraper is controlled by the extension and retraction of the actuating cylinder.

[0019] Preferably, the second end face grinding head includes a crossbar, which is mounted on the frame, and the second scraper is connected to the crossbar via a lifting mechanism.

[0020] Preferably, anti-roll frames are installed at both ends of the conveyor belt. The anti-roll frame includes a pair of bent pieces, with a bottom plate formed at the bottom of the bent pieces and a plurality of waist-shaped holes on the bottom plate.

[0021] This invention provides a descaling machine for cylindrical forgings operating at high temperatures. It offers the following advantages:

[0022] 1. By setting up outer contour grinding components and end face grinding components, the outer contour of the forging can be ground throughout the entire process, and the first and last end faces of the forging can be ground, saving grinding steps and shortening grinding time.

[0023] 2. By setting up a movable first end face grinding head and a second end face grinding head, the first end face grinding head can hold and push the forging towards the second end face grinding head without affecting the forging's transmission on the conveyor belt. When the two end face grinding heads hold the first and last ends of the forging respectively, and allow the forging to continue to rotate, the end face grinding operation of the forging is completed. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 2 This is a rear view schematic diagram of the structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of this utility model from the right side;

[0027] Figure 4 for Figure 3 Schematic diagram of half section of structure;

[0028] Figure 5 This is a schematic diagram of the first end face grinding head structure and the second end face grinding head structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of this utility model from the left side.

[0030] In the picture:

[0031] 1. Conveyor belt;

[0032] 2. Outer contour grinding assembly; 21. Grinding roller; 22. Bearing housing;

[0033] 3. End face grinding assembly; 31. First end face grinding head; 311. Connecting frame; 312. First scraper; 32. Second end face grinding head; 321. Crossbar; 322. Second scraper;

[0034] 4. Roll cage. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In this application document, "conveyor belt" specifically refers to a complete transmission mechanism, and not simply a belt; also, in this document, "forging" specifically refers to a high-temperature state, cylindrical shape, and for the sake of brevity, "forging" is used throughout the document.

[0037] See attached document Figure 1-6 A descaling machine for cylindrical forgings operating at high temperatures includes a frame on which a conveyor belt 1 is placed for transporting forgings. Adjustable outer contour grinding components 2 are also installed on the frame on both sides of the conveyor belt 1. The distance between the two outer contour grinding components 2 is adjusted to grind forgings of different diameters on the conveyor belt 1.

[0038] Anti-roll frames 4 are installed at both ends of the conveyor belt 1. Initially, the forging is placed in the anti-roll frame 4 at the beginning. The function of the anti-roll frame 4 is to prevent the forging from rolling off the conveyor belt 1. After the conveyor belt 1 is started, the forging is transported from the beginning to the grinding assembly for descaling. After descaling is completed, it is moved to the anti-roll frame 4 at the end of the conveyor belt 1 to wait for material to be picked up.

[0039] The roll cage 4 includes a pair of bending plates with a base plate formed at the bottom of the bending plates. Several waist-shaped holes are provided on the base plate. The function of the waist-shaped holes is to facilitate the adjustment of the spacing between the bending plates to accommodate forgings of different diameters.

[0040] The outer contour grinding assembly 2 includes a grinding roller 21, which is positioned along the conveying direction of the conveyor belt 1. Bearing seats 22 are mounted at both ends of the grinding roller 21, and the two bearing seats 22 are slidably connected to the frame. Specifically, the slidable connection can be achieved using a slide rail and slider mechanism; for example, a slider is mounted at the bottom of the bearing seat 22, and a slide rail is mounted at the corresponding position on the frame, allowing for slidable engagement. A drive shaft is also mounted on one end of the bearing seat 22. The drive mechanism can engage with the drive shaft via transmission components to cause the grinding roller 21 to rotate. Figure 6 As shown, the transmission components can be gears and chains, or transmission wheels and belts. This part adopts the existing transmission structure design, so I won't go into details.

[0041] The rotating grinding rollers 21 on both sides of the conveyor belt 1 will drive the forging to rotate, thereby grinding the entire outer contour surface of the forging.

[0042] In some embodiments, an actuator cylinder or screw structure is mounted on the frame on one side of the bearing housing 22, which can push the bearing housing 22 to slide on the frame, thereby adjusting the distance between the two outer contour grinding components 2. It is understood that the actuator cylinder and screw structure can be selected from commonly available models on the market.

[0043] An end face grinding assembly 3 is also installed on the frame above the conveyor belt 1. The end face grinding assembly 3 includes a first end face grinding head 31 and a second end face grinding head 32 installed along the transmission direction of the conveyor belt 1. The first end face grinding head 31 is slidably connected to the frame and can be displaced along the transmission direction of the conveyor belt 1. When the forging is transported between the two end face grinding heads, the first end face grinding head 31 will push the rotating forging on the conveyor belt 1 toward the second end face grinding head 32 and make contact with it. After contact, the first and last ends of the forging are ground by the grinding scraper.

[0044] In some embodiments, the first end face grinding head 31 includes a connecting frame 311, which is slidably fitted on the frame. A first scraper 312 is installed on the connecting frame 311. The first scraper 312 retracts after being impacted by the forging transmitted from the beginning of the conveyor belt 1, so that the forging passes through the first scraper 312 and continues to be transported on the conveyor belt 1.

[0045] Specifically, a support arm is installed at the bottom of the connecting frame 311, and the first scraper 312 is hinged to the support arm. An edge is formed on the side wall of the first scraper 312 near the beginning of the conveyor belt 1, extending outwards. Figure 5 As shown, in the initial state, the first scraper 312 is restricted from rotating toward the beginning of the conveyor belt 1 along the edge. The first scraper 312 can rotate freely toward the second end face grinding head 32, so as to satisfy that the position of the first scraper 312 does not affect the transportation of the forging and the first scraper 312 pushes the forging toward the second end face grinding head 32.

[0046] Alternatively, the first scraper 312 and the support arm can be connected by a telescopic reset structure, such as an elastic telescopic rod. A commonly used mechanism that meets the performance requirements can be adopted. When the first scraper 312 is impacted by the forging, the elastic telescopic rod is compressed by the forging and contracts. After the forging has completely passed through, the elastic telescopic rod rebounds and recovers.

[0047] In another embodiment, the first scraper 312 and the connecting frame 311 are connected by a lifting mechanism. The lifting mechanism can be a common and universal structure on the market, such as a cylinder or a telescopic rod. When the forging needs to pass through the first scraper 312, the first scraper 312 rises and leaves enough space for the forging to pass through. After the forging passes through, the first scraper 312 descends a suitable distance to abut against the end face of the forging.

[0048] In some embodiments, the second end face grinding head 32 includes a crossbar 321, which is mounted on the frame. A second scraper 322 is hinged to the crossbar 321. Specifically, the second scraper 322 extends outward from the side near the first scraper 312 to form a hinge portion, which is hinged to the crossbar 321. At the end of the second scraper 322 away from the conveyor belt 1, a pusher of an actuating cylinder is also hinged. The rotation of the second scraper 322 is controlled by the extension and retraction of the actuating cylinder.

[0049] In other embodiments, the second scraper 322 is connected to the crossbar 321 via a lifting mechanism. The first scraper 312 pushes the forging and abuts against the second scraper 322. Since the outer contour grinding assembly 2 will drive the forging to rotate, the first scraper 312 and the second scraper 322 maintain a resisting force, and the front and rear end faces of the forging are ground.

[0050] It is understandable that the first scraper 312 and the second scraper 322 are respectively provided with a friction layer on the side that contacts the end face of the forging.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A descaling machine for cylindrical forgings operating at high temperatures, comprising a frame and a conveyor belt (1) placed on the frame, characterized in that: Two outer contour grinding components (2) are installed on one side of the conveyor belt (1), respectively. The end face grinding assembly (3) is mounted on a frame above the conveyor belt (1).

2. The descaling machine for column-shaped forgings under high temperature conditions as described in claim 1, characterized in that: The outer contour grinding assembly (2) includes a grinding roller (21) placed along the transmission direction of the conveyor belt (1), and bearing seats (22) are respectively installed at both ends, with the bearing seats (22) slidably connected to the frame.

3. The descaling machine for column-shaped forgings under high temperature conditions as described in claim 2, characterized in that: The end face grinding assembly (3) includes a first end face grinding head (31) movable along the conveying direction of the conveyor belt (1) and a second end face grinding head (32) mounted along the conveying direction of the conveyor belt (1). The first end face grinding head (31) pushes the forging end face located between the two grinding heads and in a rotating state to contact the second end face grinding head (32).

4. The descaling machine for column-shaped forgings under high temperature conditions as described in claim 3, characterized in that: The first end face grinding head (31) includes a connecting frame (311), which is slidably fitted on the frame, and a retractable first scraper (312) is installed on the connecting frame (311). The first scraper (312) retracts after being impacted by the forging transmitted from the head end of the conveyor belt (1), so that the forging passes through the first scraper (312).

5. The descaling machine for column-shaped forgings under high temperature conditions as described in claim 3, characterized in that: The first end face grinding head (31) includes a connecting frame (311), which is slidably fitted on the frame, and a liftable first scraper (312) is installed on the connecting frame (311).

6. A descaling machine for cylindrical forgings in a high-temperature state as described in claim 4 or 5, characterized in that: The second end face grinding head (32) includes a crossbar (321), which is mounted on the frame. A second scraper (322) is hinged on the crossbar (321). Specifically, the second scraper (322) extends outward from the side near the first scraper (312) to form a hinged part, and is hinged to the crossbar (321). At the end of the second scraper (322) away from the conveyor belt (1), a pusher of an actuating cylinder is also hinged. The rotation of the second scraper (322) is controlled by the extension and retraction of the actuating cylinder.

7. A descaling machine for cylindrical forgings in a high-temperature state as described in claim 4 or 5, characterized in that: The second end face grinding head (32) includes a crossbar (321), which is mounted on the frame. The second scraper (322) is connected to the crossbar (321) through a lifting mechanism.

8. The descaling machine for column-shaped forgings under high temperature conditions as described in claim 1, characterized in that: The conveyor belt (1) is equipped with anti-roll frames (4) at both ends. The anti-roll frames (4) include a pair of bent pieces. A bottom plate is formed at the bottom of the bent pieces, and several waist-shaped holes are opened on the bottom plate.

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