A method of processing a wear plate

Abstract

The application discloses a kind of wear-resistant tile processing methods, including the recessed die seat and the male die top seat of setting, the recessed die seat is around cooling pipeline, double diameter recessed die forming groove body and the storage cavity of intercommunication guide hole, the guide column under the male die top seat goes down extrusion pressing plate, first piston in conveying cylinder is driven to produce negative pressure adsorption top material through slot gas compression second spring, the male die top seat and recessed die forming groove body die moulding integral lap tile, after die opening, first spring rebound gas supply, second spring reset drive arc-shaped top plate lift and eject workpiece.The wear-resistant tile processing method, setting around type cooling pipeline continuously to recessed die forming groove body cooling, avoid mould high temperature tempering damage, rely on die moulding action linkage conveying cylinder, spring and piston assembly realize gas circuit negative pressure, gas supply state automatic switching, drive arc-shaped top plate automatic eject workpiece, reduce manual operation intensity, effectively improve wear-resistant tile continuous processing efficiency and finished product quality.

Description

Technical Field

[0001] This invention relates to the technical field of wear-resistant tile processing, specifically a method for processing wear-resistant tiles. Background Technology

[0002] The heat exchange pipes of thermal power plant boilers are subjected to long-term erosion and wear from high-temperature flue gas. When the pipe length exceeds 3 meters, anti-wear tiles need to be installed in sections. The joints of the sections need to be overlapped for protection. At present, the industry generally uses a single arc mold to process standard straight cylinder anti-wear tiles. After forming, they are manually cut and bent to make independent overlapping cover plates, and then fixed by spot welding on site.

[0003] During processing, the heat from the deformation of the steel plate during molding continues to accumulate, the mold is prone to tempering and wear due to long-term high temperature, the residual stress of the workpiece is large, and it is prone to warping and deformation during storage and service. The dimensional error of the overlapping section is large due to manual processing, the matching degree of on-site fitting is poor, and conventional molds lack precise guiding structures. The punch is prone to displacement when the mold is closed, and the coaxiality of the tile body is insufficient, resulting in a high scrap rate.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing anti-wear tile processing methods. Therefore, we have proposed an anti-wear tile processing method that can effectively solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method for processing wear-resistant tiles to solve the problems mentioned in the background art, such as the continuous accumulation of heat from the deformation of steel plate molding, the easy tempering and wear of the mold due to long-term high temperature, the large residual stress of the workpiece during molding, the easy warping and deformation during storage and service, the large dimensional error of the overlapping section during manual processing, the poor matching degree of on-site fitting, the lack of precise guiding structure in conventional molds, the easy displacement of the punch during mold closing, and the insufficient coaxiality of the tile body and the high scrap rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for processing wear-resistant tiles, comprising a concave mold seat and a convex mold top seat. The concave mold seat is provided with a surrounding cooling pipe, a double-diameter concave mold forming groove, and a placement cavity communicating with a guide hole. The guide column under the convex mold top seat descends to extrude the pressure plate, driving the first piston in the conveying cylinder to generate negative pressure to adsorb the gas in the ejector channel and compress the second spring. The convex mold top seat and the concave mold forming groove are molded together to form an overlapping tile. After the mold is opened, the first spring rebounds to supply air, and the second spring resets to drive the arc-shaped top plate to lift and eject the workpiece.

[0007] Preferably, the concave mold forming groove includes a large-diameter forming groove, a small-diameter overlapping forming groove, and a transition arc groove connecting the large-diameter forming groove and the small-diameter overlapping forming groove.

[0008] Preferably, the punch top seat includes a large-diameter forming section, a small-diameter forming section, and a transition forming arc connecting the large-diameter forming section and the small-diameter forming section, and the die forming groove is adapted to the punch top seat.

[0009] Preferably, the guide post is slidably fitted with the guide hole of the die holder, and the bottom end of the guide post is attached to the upper surface of the pressure plate after passing through the guide hole as it descends.

[0010] Preferably, a conveying cylinder is installed inside the storage cavity, a first piston is provided inside the conveying cylinder, a pressure plate is installed through the top of the first piston, a transmission pipe is connected through the top side of the conveying cylinder, a top material passage is opened inside the concave mold forming groove, and the transmission pipe is connected to the top material passage.

[0011] Preferably, the bottom of the pressure plate is connected to a first spring sleeved on the outside of the first piston, and the two ends of the first spring abut against the pressure plate and the upper end face of the conveying cylinder, respectively.

[0012] Preferably, a second piston is provided inside the top material channel, and an arc-shaped top plate is connected to the upper end of the second piston through a moving rod. The initial position of the arc-shaped top plate is set at the top of the top material channel.

[0013] Preferably, a limiting plate is fixed inside the top material channel, and a second spring is fitted on the outside of the moving rod, with the two ends of the second spring abutting against the limiting plate and the second piston, respectively.

[0014] Preferably, the cooling pipes inside the die holder are arranged around the outer periphery of the die forming groove, and a cooling medium is continuously introduced to cool the die holder throughout the entire processing.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This anti-wear tile processing method uses a surrounding cooling pipe to continuously cool the die forming tank, avoiding damage from high-temperature tempering of the die. It relies on the mold closing action to link the conveyor cylinder, spring, and piston assembly to achieve automatic switching of air circuit negative pressure and air supply status, driving the arc-shaped top plate to automatically eject the workpiece. This reduces the intensity of manual operation and effectively improves the continuous processing efficiency and finished product quality of anti-wear tiles. The specific details are as follows:

[0016] (1) Cooling pipes are arranged around the die forming groove inside the die holder. Cooling medium is continuously introduced throughout the molding process to quickly absorb the large amount of heat released by the plastic deformation of the steel plate, greatly extend the service life of the die holder, and reduce the cost of die replacement and repair.

[0017] (2) The concave mold forming groove integrates a large-diameter forming groove, a small-diameter overlapping forming groove and a transition arc groove. The lower end of the punch top seat is equipped with a large-diameter pressing section, a small-diameter pressing section and a transition pressing arc with perfectly matched contours. The two can be molded in one molding process to produce wear-resistant overlapping tiles with an integrated overlapping structure, shortening the processing time and eliminating the dimensional deviation caused by manual processing.

[0018] (3) The top of the punch is equipped with guide pillars at the four corners, and the die seat is opened with guide holes for sliding fit. During the mold closing process, the guide pillars move vertically down along the guide holes to limit the horizontal offset and left and right sway of the top of the punch, so that each pressing section of the punch is accurately aligned with the die forming groove, ensuring the coaxiality of the tile body arc and greatly reducing the scrap rate of the sheet.

[0019] (4) By pressing down the guide column to squeeze the pressure plate, the first piston is driven to compress the first spring, which causes the conveying cylinder to generate negative pressure. The gas inside the top material channel is absorbed through the transmission pipe, which pulls the second piston down to compress the second spring, so that the arc-shaped top plate is completely housed at the top of the top material channel, ensuring that the outer arc of the wear-resistant tile is complete and smooth.

[0020] (5) The conveying cylinder delivers gas to the top material channel, which, together with the rebound thrust of the second spring, lifts the second piston, the moving rod and the arc-shaped top plate, automatically ejecting the molded anti-wear tile out of the cavity. The automated ejection eliminates the manual removal step, improves the continuous molding processing cycle, and effectively increases the overall processing capacity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the punch top seat and the die seat of the present invention;

[0023] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of the punch top seat of the present invention;

[0024] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the punch top seat of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the conveyor cylinder of the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the top material channel of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0028] In the figure: 1. Die base; 2. Die forming groove; 3. Punch top seat; 4. Guide post; 5. Guide hole; 6. Cooling pipe; 7. Storage cavity; 8. Conveying cylinder; 9. Pressure plate; 10. First piston; 11. First spring; 12. Transmission pipe; 13. Ejector channel; 14. Second piston; 15. Moving rod; 16. Arc-shaped top plate; 17. Limiting plate; 18. Second spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] In this embodiment, a die forming groove 2 is formed in the middle of the die holder 1. This groove is integrally connected to a large-diameter forming groove, a small-diameter overlapping forming groove, and a transition arc groove. The lower end of the punch top seat 3, which is adapted to it, is correspondingly provided with a large-diameter forming section, a small-diameter forming section, and a transition forming arc. A single molding process can integrally form a wear-resistant overlapping tile with a self-overlapping structure, improving the accuracy of workpiece interchangeability and assembly. Figures 1-4 The technical solution shown includes a die holder 1 and a punch top seat 3. The die holder 1 is equipped with a surrounding cooling pipe 6, a double-diameter die forming groove 2, and a storage cavity 7 that connects to the guide hole 5. The surrounding cooling pipe 6 is arranged around the outer periphery of the die forming groove 2. The cooling medium is continuously introduced throughout the processing to remove the high temperature generated by the deformation of the steel plate during molding, which can stabilize the overall temperature of the die holder 1, avoid long-term high-temperature tempering failure of the mold, and at the same time reduce the residual stress inside the wear-resistant tile after molding, preventing the tile from... To prevent warping and deformation in the later stages, the dimensional accuracy of the die forming groove 2 is kept stable. The die forming groove 2 is opened in the middle of the die base 1. This groove is integrally connected with the large-diameter forming groove, the small-diameter overlapping forming groove and the transition arc groove. The lower end of the punch top seat 3 is correspondingly provided with a large-diameter pressing section, a small-diameter pressing section and a transition pressing arc. The contours of the two are perfectly matched. The wear-resistant overlapping tile with its own overlapping structure can be integrally formed in a single molding, eliminating the need for secondary cutting and bending on site, unifying the finished product size and improving the accuracy of workpiece interchangeability and assembly.

[0032] Example 2:

[0033] In this embodiment, the gas, combined with the rebound thrust of the second spring 18, jointly pushes the second piston 14 and the moving rod 15 upward, and the arc-shaped top plate 16 rises synchronously, automatically ejecting the formed anti-wear overlapping tile from inside the die forming groove 2, as detailed below. Figures 3-7As shown, the following is disclosed: the guide post 4 under the punch top seat 3 descends to press the pressure plate 9, driving the first piston 10 in the conveying cylinder 8 to generate negative pressure to adsorb the gas in the ejector channel 13 and compress the second spring 18. The punch top seat 3 and the die forming groove 2 are molded together and overlapped. After the mold is opened, the first spring 11 rebounds to supply air, and the second spring 18 resets to drive the arc-shaped top plate 16 to lift and eject the workpiece. The die forming groove 2 includes a large-diameter forming groove, a small-diameter overlapping forming groove, and a transition arc groove connecting the large-diameter forming groove and the small-diameter overlapping forming groove. The punch top seat 3 includes a large-diameter forming section, a small-diameter forming section, and a transition arc connecting the large-diameter forming section and the small-diameter forming section. The die forming groove 2 is adapted to the punch top seat 3, and the guide post 4 and the die seat 1 are connected by a guide post 1. The guide post 4 slides through the guide hole 5 and its bottom end fits against the upper surface of the pressure plate 9. A conveying cylinder 8 is installed inside the placement cavity 7. A first piston 10 is installed inside the conveying cylinder 8. The first piston 10 passes through the top of the conveying cylinder 8 and is fitted with the pressure plate 9. A transmission pipe 12 is connected to the top side of the conveying cylinder 8. A top material passage 13 is opened inside the die forming groove 2. The transmission pipe 12 is connected to the top material passage 13. A first spring 11 is connected to the bottom of the pressure plate 9 and sleeved on the outside of the first piston 10. The two ends of the first spring 11 respectively abut against the pressure plate 9 and the upper surface of the conveying cylinder 8. A second piston 14 is installed inside the top material passage 13. An arc-shaped top plate 16 is connected to the upper end of the second piston 14 via a moving rod 15. The initial position of the arc-shaped top plate 16 is set... At the top of the ejector channel 13, a limiting plate 17 is fixed inside the ejector channel 13. A second spring 18 is fitted on the outside of the moving rod 15. The two ends of the second spring 18 abut against the limiting plate 17 and the second piston 14, respectively. The cooling pipe 6 inside the die holder 1 is arranged around the outer periphery of the die forming groove 2. Cooling medium is continuously introduced to cool the die holder 1 throughout the entire processing. Guide posts 4 are fixed at the four corners of the bottom of the punch top seat 3. The die holder 1 has guide holes 5 that match the guide posts 4. The guide posts 4 and the guide holes 5 are in a sliding fit with clearance. The guide holes 5 and the placement cavity 7 on the side of the die holder 1 are interconnected. When the mold is closed, the guide posts 4 move down precisely along the guide holes 5, limiting the left and right displacement of the punch top seat 3 and ensuring the coaxiality of the molding. After the material is loaded, the punch top seat 3 moves down, and the guide posts 4 pass through. The bottom end of the guide hole 5 is attached to the extrusion plate 9. The pressure plate 9 presses down, causing the first piston 10 to move downward inside the conveying cylinder 8, simultaneously compressing the first spring 11. The internal space of the conveying cylinder 8 shrinks, generating a negative pressure suction force on the top material channel 13 through the transmission pipe 12. The negative pressure pulls the second piston 14 downward, compressing the second spring 18. The moving rod 15 under the second piston 14 passes through the limiting plate 17 inside the top material channel 13. The arc-shaped top plate 16 remains housed in the top material channel 13 without interfering with the molding process. Subsequently, each pressing section of the punch top seat 3 and the die forming groove 2 completely close, applying pressure to the steel plate to integrally form the wear-resistant tile with overlapping sections. During the molding process, the cooling pipe 6 continuously cools and controls the temperature. After molding is completed, the punch top seat 3 is raised as a whole, and the guide post 4 disengages from the pressure plate 9.The compressed first spring 11 rebounds, pushing the pressure plate 9 and the first piston 10 upwards to reset. The conveying cylinder 8 expands, allowing internal gas to be transported via the transmission pipe 12 to the top material channel 13. The introduced gas, combined with the rebound force of the second spring 18, pushes the second piston 14 and the moving rod 15 upwards. Simultaneously, the arc-shaped top plate 16 rises, automatically ejecting the formed anti-wear overlapping tile from the cavity forming groove 2, completing a single processing cycle. The entire process requires no additional independent drive for the top material ejection mechanism, resulting in a compact structure and reduced manual labor intensity during part removal.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for processing wear-resistant tiles, comprising a concave mold seat (1) and a convex mold top seat (3); characterized in that, Also includes: The die holder (1) is provided with a surrounding cooling pipe (6), a double-diameter die forming groove (2) and a storage cavity (7) connecting the guide hole (5). The guide column (4) under the punch top seat (3) goes down to squeeze the pressure plate (9), which drives the first piston (10) in the conveying cylinder (8) to generate negative pressure to adsorb the gas in the ejector channel (13) and compress the second spring (18). The punch top seat (3) and the die forming groove (2) are molded together and overlapped. After the mold is opened, the first spring (11) rebounds to supply air, and the second spring (18) resets to drive the arc-shaped top plate (16) to lift and eject the workpiece.

2. The method for processing wear-resistant roof tiles according to claim 1, characterized in that: The concave forming groove (2) includes a large-diameter forming groove, a small-diameter overlapping forming groove, and a transition arc groove connecting the large-diameter forming groove and the small-diameter overlapping forming groove.

3. The method for processing wear-resistant roof tiles according to claim 2, characterized in that: The punch top seat (3) includes a large-diameter forming section, a small-diameter forming section, and a transition forming arc connecting the large-diameter forming section and the small-diameter forming section. The die forming groove (2) is adapted to the punch top seat (3).

4. The method for processing wear-resistant tiles according to claim 3, characterized in that: The guide post (4) is in sliding fit with the guide hole (5) of the die holder (1) with a clearance. After the guide post (4) descends and passes through the guide hole (5), its bottom end is attached to the upper surface of the pressure plate (9).

5. The method for processing wear-resistant roof tiles according to claim 4, characterized in that: The storage cavity (7) is equipped with a conveying cylinder (8), and a first piston (10) is provided inside the conveying cylinder (8). The first piston (10) passes through the top of the conveying cylinder (8) and a pressure plate (9) is installed. A transmission pipe (12) is connected through the top side of the conveying cylinder (8). A top material passage (13) is opened inside the die forming groove (2). The transmission pipe (12) is connected to the top material passage (13).

6. The method for processing wear-resistant roof tiles according to claim 5, characterized in that: The bottom of the pressure plate (9) is connected to a first spring (11) sleeved on the outside of the first piston (10), and the two ends of the first spring (11) abut against the pressure plate (9) and the upper end face of the conveying cylinder (8) respectively.

7. The method for processing wear-resistant roof tiles according to claim 6, characterized in that: The top material channel (13) is provided with a second piston (14), and the upper end of the second piston (14) is connected to an arc-shaped top plate (16) via a moving rod (15). The arc-shaped top plate (16) is initially positioned at the top of the top material channel (13).

8. The method for processing wear-resistant roof tiles according to claim 7, characterized in that: A limiting plate (17) is fixed inside the top material channel (13), and a second spring (18) is fitted on the outside of the moving rod (15). The two ends of the second spring (18) abut against the limiting plate (17) and the second piston (14) respectively.

9. The method for processing wear-resistant roof tiles according to claim 1, characterized in that: The cooling pipe (6) inside the die holder (1) is arranged around the outer periphery of the die forming groove (2), and the cooling medium is introduced throughout the processing to continuously cool the die holder (1).

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