Cooling device for protective cover of high-speed wire rod laying head

Abstract

The utility model relates to a cooling device for a protective cover of a high-speed wire rod laying head. The cooling device comprises an upper protective cover cooling assembly, a lower protective cover cooling assembly and a telescopic mechanism area cooling assembly, the lower shield cooling assembly comprises a cooling water tank II embedded in the inner wall of the middle of a lower shield of the laying head, and water inlets and water outlets are formed in the front end and the rear end of the cooling water tank II. The cooling water tank I and the cooling water tank II can cool the silking machine upper protective cover and the silking machine lower protective cover, the cooling water tank III can cool the area, close to the telescopic mechanism, of the silking machine lower protective cover, and compared with an existing spraying type cooling mode, safety is high, potential safety hazards cannot be brought to the silking machine, and the service life of the silking machine is prolonged. And the lower protective cover area at the telescopic mechanism can be cooled, normal operation of the telescopic mechanism is guaranteed, friction and scratching of the surfaces of the wire rods caused by gap reduction when Q195L and other high-quality wire rods are rolled are avoided, the proportion of cold heading cracking of a user is reduced, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling, in particular to a protective cover cooling device for a high-speed wire laying machine. Background Art

[0002] The sixth generation of spinning machine protection cover is designed as an internal spray cooling spinning machine protection cover. There is no special cooling design for the spinning disk and the wear plate of the protection cover. The cooling effect is not good, and a large area of ​​corrosion and oxidation is generated. The iron oxide scale is mixed with water mist and adheres to the periphery of the protection cover and the wear plate;

[0003] The diameter of the wear-resistant plate is 1050mm, and two semicircles are combined into an integral protective cover. The design of the spinning disk and the wear-resistant plate of the spinning machine requires a 3mm gap between the upper protective cover and the 2mm gap between the lower protective cover. When the wear-resistant plate is subjected to a high temperature of 900℃~1050℃, it deforms and often rubs against the high-speed rotating spinning disk, affecting production and causing deformation and damage to the baffle on the spinning disk. When rolling high-quality wire rods such as Q195L, the spinning disk and the protective cover will expand due to the heat due to the temperature as high as 1000℃. The traditional protective cover cooling device is spray cooling, which has low cooling intensity and uneven cooling, and often leads to a reduction in the gap. When high-quality wire rods such as Q195L are coiled in the spinning machine, the outer ring rubs against the protective cover, destroying the surface quality of the wire rod, causing crack defects in the cold heading process for market users, and the iron oxide scale produced also directly affects the production rhythm. Long-term operation in this situation poses potential safety hazards to the equipment.

[0004] In addition, the temperature of the lower shield area of ​​the spinning machine near the telescopic mechanism is relatively high, and the current spray water cooling mechanism does not circulate cooling in this area, which is undoubtedly a safety hazard for the daily operation of the telescopic mechanism;

[0005] In addition, the water mist cooling designed for the sixth-generation spinning machine has no internal circulation recovery. The unevaporated water mist flows along the protective cover under the spinning machine to the air-cooled roller fan position under the platform, which can easily inhale the remaining water in the flowing water mist and cause equipment hazards. There is no special cooling design for regular drainage at the wear-resistant plate position of the protective cover, so it is urgent to solve this cooling method that is prone to safety hazards. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a high-speed wire laying machine protective cover cooling device with a reasonable structural design, which can keep the gap between the wear-resistant plate of the protective cover and the laying disk within the original range, avoid friction scratches on the surface of the wire rod due to the reduction of the gap when rolling high-quality wire rods such as Q195L, reduce the proportion of users experiencing cold heading cracking problems, and can cool the upper protective cover and the lower protective cover of the laying machine as well as the lower protective cover area of ​​the laying machine close to the telescopic mechanism, so as to avoid the excessive temperature in this area affecting the normal operation of the telescopic mechanism.

[0007] The technical problem to be solved by the utility model is achieved through the following technical solution. The cooling device includes an upper shield cooling assembly, a lower shield cooling assembly and a telescopic mechanism area cooling assembly;

[0008] The upper shield cooling assembly comprises a cooling water tank I embedded in the outer wall of the middle part of the upper shield of the spinning machine, and water inlets and outlets are arranged at the front and rear ends of the cooling water tank I;

[0009] The lower shield cooling assembly comprises a cooling water tank II embedded in the inner wall of the middle part of the lower shield of the spinning machine, and water inlets and outlets are arranged at the front and rear ends of the cooling water tank II;

[0010] The telescopic mechanism area cooling assembly includes a cooling water tank III embedded on the inner wall of the lower shield of the spinning machine and close to the telescopic mechanism, and water inlets and outlets are arranged on the front and rear ends of the cooling water tank III, and the water inlet of the cooling water tank III is connected to the water outlet pipe of the cooling water tank II;

[0011] A plurality of limiting plates for limiting the cooling water tank I and the cooling water tank II are fixedly arranged on the middle outer wall of the upper shield of the spinning machine and the middle inner wall of the lower shield of the spinning machine.

[0012] Preferably, the plurality of limit plates are arranged at equal intervals.

[0013] Preferably, the width of the cooling water trough I is the same as the width of the cooling water trough II.

[0014] Preferably, the pipes on the water inlets and outlets of the cooling water tank I, cooling water tank II and cooling water tank III are metal hoses.

[0015] Preferably, the diameters of the water inlets and outlets on the cooling water tank I, cooling water tank II and cooling water tank III are 20 mm.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] (1) Compared with the previous spray cooling method, this cooling device can ensure the intensity and uniformity of cooling, keep the gap between the protective cover wear-resistant plate and the spinning disk within the original range, avoid friction scratches on the surface of the wire rod due to the reduction of the gap when rolling high-quality wire rods such as Q195L, reduce the proportion of users' cold heading cracking problems, and make the service life of the spinning machine protective cover from the original two years to no need for replacement, saving spare parts costs / about 20,000 per line per year, and saving labor maintenance. The production time generated is expected to be 20 hours per year, 50 steel bars * 2.25 tons * 200 (ton steel benefit) * 20 hours per hour, and the predicted benefit is about 450,000 / year; in addition, after the transformation, the cooling water forms an internal circulation, avoiding the original open water flowing into the air-cooled roller fan to cause equipment damage and equipment accidents, and it is predicted to generate intangible benefits of 50,000 / year, which is economical and practical;

[0018] (2) The upper and lower guards of the laying machine can be cooled by cooling water tanks I and II, and the area of ​​the lower guard of the laying machine near the telescopic mechanism can be cooled by cooling water tank III. Compared with the previous spray cooling method, it is safer and will not bring safety hazards to the laying machine. In addition, it can cool down the lower guard area of ​​the telescopic mechanism, ensuring the normal operation of the telescopic mechanism, avoiding friction scratches on the surface of the wire rod due to the reduction of the gap when rolling high-quality wire rods such as Q195L, and reducing the proportion of users experiencing cold heading cracking problems. It is highly practical;

[0019] (3) The outlet of cooling water trough II is connected to the inlet pipe of cooling water trough III. After cooling the lower guard of the spinning machine, the cooling water can also cool the lower guard area of ​​the spinning machine close to the telescopic mechanism, realizing a single circulation of cooling water in cooling water trough II and cooling water trough III to a certain extent. While achieving cooling and cooling, it also plays a role in saving water and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of a toaster protective cover equipped with the cooling device of the utility model;

[0021] Figure 2 The utility model is a left-side structural schematic diagram of a toaster protective cover equipped with the cooling device.

[0022] In the figure: 1. Upper guard cover of spinning machine; 2. Cooling water trough I; 3. Lower guard cover of spinning machine; 4. Cooling water trough II; 5. Telescopic mechanism; 6. Cooling water trough III; 7. Metal hose; 8. Limit plate. DETAILED DESCRIPTION

[0023] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0024] Example 1, reference Figure 1-2 , a high-speed wire laying machine protective cover cooling device, the cooling device comprises an upper protective cover cooling assembly, a lower protective cover cooling assembly and a telescopic mechanism area cooling assembly;

[0025] The upper shield cooling assembly includes a cooling water tank Ⅰ2 embedded in the outer wall of the middle part of the upper shield 1 of the spinning machine. The cooling water tank Ⅰ2 is formed into a roughly semicircular trough structure, and water inlets and outlets are provided at the front and rear ends of the cooling water tank Ⅰ2.

[0026] The lower shield cooling assembly includes a cooling water tank II4 embedded in the inner wall of the middle part of the lower shield 3 of the spinning machine. The cooling water tank II4 is formed into a roughly semicircular trough structure. Water inlets and outlets are provided at the front and rear ends of the cooling water tank II4. The width of the cooling water tank I2 is the same as that of the cooling water tank II4.

[0027] The telescopic mechanism area cooling assembly includes a cooling water tank III6 embedded on the inner wall of the lower shield 3 of the spinning machine and close to the telescopic mechanism 5. The cooling water tank III6 is formed into a roughly semicircular annular tank body structure. Water inlets and outlets are provided at the front and rear ends of the cooling water tank III6. The water inlet of the cooling water tank III6 is connected to the water outlet pipe of the cooling water tank II4.

[0028] The pipes on the water inlet and outlet of the cooling water tank Ⅰ2, cooling water tank Ⅱ4 and cooling water tank Ⅲ6 are metal hoses 7, and the diameter of the water inlet and outlet of the cooling water tank Ⅰ2, cooling water tank Ⅱ4 and cooling water tank Ⅲ6 is 20mm;

[0029] A plurality of limit plates 8 for limiting the cooling water trough Ⅰ2 and the cooling water trough Ⅱ4 are fixedly provided on the middle outer wall of the upper shield 1 of the spinning machine and the middle inner wall of the lower shield 3 of the spinning machine. The limit plates 8 are formed into a roughly square plate-like structure. The plurality of limit plates 8 are arranged at equal intervals, and the number of limit plates 8 used can be selected according to usage requirements.

[0030] The water inlet and outlet on the cooling water tank Ⅰ2 are used to supply and drain water in the cooling water tank Ⅰ2, and the upper shield 1 area of ​​the spinning machine is cooled and lowered. The water inlet and outlet on the cooling water tank Ⅱ4 and the cooling water tank Ⅲ6 are used to supply and drain water in the cooling water tank Ⅱ4 and the cooling water tank Ⅲ6, and the lower shield 3 area of ​​the spinning machine and the area of ​​the lower shield 3 of the spinning machine close to the telescopic mechanism 5 are cooled and lowered. Compared with the previous spray-type cooling method, the cooling device can ensure the intensity and uniformity of cooling, so that the gap between the protective cover wear-resistant plate and the spinning disk is maintained within the original range, avoiding the reduction of the gap when rolling high-quality wire rods such as Q195L. The friction and scratches on the surface of the wire rod are reduced, and the proportion of users experiencing cold heading cracking problems is reduced, so that the service life of the wire laying machine protection cover is extended from the original two years to no need for replacement, saving spare parts costs / about 20,000 per line per year, and saving labor for repair and maintenance. The production time generated is expected to be 20 hours per year, 50 steel bars per hour * 2.25 tons * 200 (ton steel efficiency) * 20 hours, and the predicted benefit is about 450,000 / year; in addition, after the transformation, the cooling water forms an internal circulation, avoiding the original open water flowing into the air-cooled roller fan to cause equipment damage and equipment accidents. It is predicted that the intangible benefit will be 50,000 / year, which is economical and practical.

Claims

1. A high-speed wire laying machine protective cover cooling device, characterized in that: The cooling device comprises an upper shield cooling assembly, a lower shield cooling assembly and a telescopic mechanism area cooling assembly; The upper shield cooling assembly comprises a cooling water tank I embedded in the outer wall of the middle part of the upper shield of the spinning machine, and water inlets and outlets are arranged at the front and rear ends of the cooling water tank I; The lower shield cooling assembly comprises a cooling water tank II embedded in the inner wall of the middle part of the lower shield of the spinning machine, and water inlets and outlets are arranged at the front and rear ends of the cooling water tank II; The telescopic mechanism area cooling assembly includes a cooling water tank III embedded on the inner wall of the lower shield of the spinning machine and close to the telescopic mechanism, and water inlets and outlets are arranged on the front and rear ends of the cooling water tank III, and the water inlet of the cooling water tank III is connected to the water outlet pipe of the cooling water tank II; A plurality of limiting plates for limiting the cooling water tank I and the cooling water tank II are fixedly arranged on the middle outer wall of the upper shield of the spinning machine and the middle inner wall of the lower shield of the spinning machine.

2. A high-speed wire laying machine protective cover cooling device according to claim 1, characterized in that: The plurality of limit plates are arranged at equal intervals.

3. The high-speed wire laying machine protective cover cooling device according to claim 1, characterized in that: The width of the cooling water trough I is the same as the width of the cooling water trough II.

4. The high-speed wire laying machine protective cover cooling device according to claim 1, characterized in that: The pipes on the water inlets and outlets of the cooling water tank I, cooling water tank II and cooling water tank III are metal hoses.

5. The high-speed wire laying machine protective cover cooling device according to claim 1, characterized in that: The diameters of the water inlets and outlets on the cooling water tank I, cooling water tank II and cooling water tank III are 20 mm.

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