Weld joint cooling device

Abstract

The utility model discloses a welding seam cooling device which comprises a strip steel cooling water tank and a cooling splash-proof cover which is arranged at the end of the strip steel cooling water tank and used for spraying water, cooling and preventing splashing in the conveying process of strip steel, and strip steel conveying rollers used for conveying the welded strip steel into the strip steel cooling water tank are arranged at the feeding end and the discharging end of the cooling splash-proof cover. Under the cooperation of the linkage of the cooling splash guard and the upper cooling water spraying pipe, the lower cooling water spraying pipe and the water spraying heads in the strip steel cooling water tank and the communication of the water pump and the filter, the welded strip steel is conveyed to the position between the upper cooling water spraying pipe and the lower cooling water spraying pipe through the strip steel conveying roller, and the welding seam of the strip steel is located between the water spraying heads; the water pumped by the water pump is sprayed from the water spraying head to the welding seams on the two sides of the strip steel, so that the welding seams on the two sides of the strip steel can be synchronously sprayed and cooled, the welding seam cooling time of the strip steel can be shortened, the strip steel does not need to be turned over for welding seam cooling, and the welding efficiency of the strip steel is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of strip steel manufacturing, and particularly relates to a weld cooling device. Background Art

[0002] When strip steel production enterprises uncoil and unwind different coils of strip steel on the production line, they need to weld the head and tail of two coils of strip steel to make them into one body. After the strip steel is welded by an automatic welding machine, due to the high running speed of the production line, the temperature of the weld is too high and it has not been sufficiently cooled. When the weld passes through the turning roller later, it is easy to burn the rubber lining layer on the roller surface, resulting in sticky glue on the strip steel surface and affecting the quality of the strip steel surface.

[0003] Therefore, an on-line cooling device for strip steel welds with the publication number of "CN215280529U" includes a spraying device arranged behind the strip steel welding machine. The spraying device includes two support seats arranged on both sides of the strip steel. Each of the two support seats is equipped with a vertical screw rod. A horizontal cross beam is inserted on the two screw rods. A plurality of mounting holes are evenly distributed along the full length of the cross beam. Each mounting hole is equipped with an atomizing nozzle. The spraying port of the atomizing nozzle faces downward. Two water inlet holes are symmetrically arranged on the upper side surface of the upper end of the atomizing nozzle. A connecting pipe is connected to the outer end of each water inlet hole. The connecting pipes between adjacent two connecting pipes are butted. The outer end of the connecting pipe of an atomizing nozzle located at the end is connected with a high-pressure water source, realizing the function of on-line cooling of the weld and avoiding the problem of sticky glue caused by too high temperature when the strip steel passes through the rubber roller.

[0004] However, for the above on-line cooling device for strip steel welds, although the servo motor drives the strip steel to move a fixed distance so that the weld is aligned with the spraying device, and then stops for a few seconds. During the stop time, the spraying device sprays atomized cooling liquid at the weld to accelerate its cooling. There are still the following obvious defects in the use process: the strip steel is welded on both sides at the same time, so welds will be generated on both sides of the strip steel. However, the above spraying device can only spray and cool the surface weld of the strip steel, and cannot synchronously cool the weld on the lower end surface of the strip steel. Therefore, it is necessary to turn the strip steel over for cooling operation, which prolongs the cooling time of the strip steel weld and slows down the cooling efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a weld cooling device to solve the problems put forward in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weld cooling device, comprising a strip cooling water trough, and a cooling splash shield at the end of the strip cooling water trough for spraying water cooling to prevent splashing during strip transportation, the feeding and discharging ends of the cooling splash shield are provided with strip conveying rollers for conveying the strip into the strip cooling water trough after welding, the inner top end of the cooling splash shield is horizontally provided with an upper cooling water spray pipe for spraying water cooling the upper end face weld of the strip, the inner side port of the strip cooling water trough is horizontally provided with a lower cooling water spray pipe for spraying water cooling the lower end face weld of the strip, an inclined guide block is provided on one side of the inner side of the strip cooling water trough for guiding downwardly flowing water, the upper cooling water spray pipe and the lower cooling water spray pipe are connected to the water pump input port installed in the internal cavity of the inclined guide block through a water supply pipe, and one side of the inclined guide block is provided with a pull-out filter water trough that runs through the outer side of the strip cooling water trough.

[0007] Preferably, the front and rear sides of the cooling splash shield are provided with entry and exit grooves for feeding and discharging the strip steel, and the bottom side of the entry and exit groove is provided with a mounting cross plate for installing the strip steel conveying roller at the end, and one side of the mounting cross plate is provided with a servo motor connected to the strip steel conveying roller for transmission, and the strip steel conveying roller is used to realize feeding and discharging, thereby accelerating the efficiency of weld cooling.

[0008] Preferably, water spray heads for spraying water to cool the welds of the conveying steel strip are evenly arranged on the corresponding sides of the upper cooling water spray pipe and the lower cooling water spray pipe, so as to achieve synchronous cooling of the welds on both sides of the steel strip.

[0009] Preferably, the output end of the water pump is connected to a water outlet pipe, the other end of the water outlet pipe is connected to the upper cooling water spray pipe and the lower cooling water spray pipe, and the input end of the water pump is connected to a filter through a pipeline, and the input pipeline of the filter extends into the strip cooling water trough, so that the water in the strip cooling water trough can be recycled to reduce the waste of water resources.

[0010] Preferably, filter trough support strips fixed on the inner side walls of the strip cooling water trough are provided on both sides of the bottom end of the pull-and-pull filter trough, and a pull-and-pull plate sealing plate is provided at one end of the pull-and-pull cavity provided on the outer side of the strip cooling water trough, which is beneficial to the cleaning of filtered impurities by pulling out the pull-and-pull filter trough.

[0011] Preferably, the four inner corners of the pull-out filter trough are provided with support gaskets, and the support gaskets are provided with impurity filter plates for filtering downwardly flowing water, which facilitates the pull-out filter trough to be pulled out to the outside to clean or replace the impurity filter plates.

[0012] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: For this weld cooling device, through the linkage of the cooling splash guard, the upper cooling spray pipe, the lower cooling spray pipe, and the spray heads in the strip cooling water tank, and in cooperation with the connection of the water pump and the filter, after the strip is welded, it is conveyed between the upper cooling spray pipe and the lower cooling spray pipe by the strip conveying roller, and the weld of the strip is located between the spray heads. Then, the water pumped out by the water pump is sprayed from the spray heads onto the welds on both sides of the strip, so as to realize the synchronous spray cooling of the welds on both sides of the strip, thereby shortening the cooling time of the strip weld. At the same time, there is no need to turn the strip over for weld cooling, further improving the welding efficiency of the strip.

[0013] Through the pull-out filter water tank arranged on one side in the strip cooling water tank and the impurity filter plate placed in the pull-out filter water tank, and at the same time, the cooling splash guard provided at the end of the strip cooling water tank, the water for cooling the strip weld flows downward and is guided to the pull-out filter water tank by the inclined plane guide block. The water can filter the welding impurities existing in the water by using the impurity filter plate arranged inside, avoiding the problem of blockage of the spray heads caused by welding impurities during the recycling of water. The water pump pumps the filtered water into the filter for filtering metal powder, so that the water can be effectively recycled and the waste of water resources can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic top view structural diagram of the cooling splash guard of the present utility model;

[0016] Figure 3 is a schematic top view internal structural diagram of the strip cooling water tank of the present utility model.

[0017] In the figure: 1, strip cooling water tank; 2, cooling splash guard; 3, strip conveying roller; 4, upper cooling spray pipe; 5, lower cooling spray pipe; 6, inclined plane guide block; 7, water pump; 8, pull-out filter water tank; 9, inlet and outlet through groove; 10, mounting cross plate; 11, servo motor; 12, spray head; 13, water outlet pipe; 14, filter; 15, filter water tank support strip; 16, support gasket; 17, impurity filter plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] See also Figures 1-3 The utility model provides a technical solution: a weld cooling device, comprising a strip cooling water tank 1, and a cooling splash shield 2 at the end of the strip cooling water tank 1 for spraying water to cool and prevent splashing during the conveying of the strip, the cooling splash shield 2 has a blocking effect on the water sprayed inside the cooling splash shield 2 to prevent water from splashing outside the equipment, the feeding and discharging ends of the cooling splash shield 2 are provided with strip conveying rollers 3 for conveying the strip steel into the strip cooling water tank 1 after welding, the strip steel is input and output by the strip steel conveying rollers 3 after welding, the inner top end of the cooling splash shield 2 is horizontally provided with an upper cooling water spray pipe 4 for spraying water cooling the weld seam on the upper end face of the strip steel, so as to achieve the effect of uniform water spray cooling on the weld seam on the upper end face of the strip steel, the inner side port of the strip cooling water tank 1 is horizontally provided with a lower cooling water spray pipe 5 for spraying water cooling the weld seam on the lower end face of the strip steel, so as to achieve cooling the weld seam on the lower end face of the strip steel But spray water, and the lower cooling water spray pipe 5 is fixed on one side wall of the inner part of the strip cooling water trough 1, and the other end passes through the outside of the other side, so as to be connected with the water pump 7. One side of the inner part of the strip cooling water trough 1 is provided with an inclined guide block 6 for guiding the downward flowing water, so that the inclined guide block 6 effectively guides the water to the water collection position in the strip cooling water trough 1 to avoid the phenomenon of more water accumulation in the horizontal plane design. The upper cooling water spray pipe 4 and the lower cooling water spray pipe 5 are connected to the input port of the water pump 7 installed in the internal cavity of the inclined guide block 6 through a water pipe. The water pump 7 draws out the water stored in the strip cooling water trough 1 and sprays it from the water spray head 12. One side of the inclined guide block 6 is provided with a pull-out filter trough 8 that passes through one side of the outer side of the strip cooling water trough 1, which can filter metal impurities in the used water to avoid damage and blockage to the equipment and pipelines.

[0020] The front and rear sides of the cooling splash shield 2 are provided with inlet and outlet slots 9 for feeding and discharging the strip steel, so that the cup welding strip steel can be fed and discharged. The bottom side of the inlet and outlet slots 9 is provided with a mounting cross plate 10 for mounting the strip steel conveying roller 3 at the end. The strip steel conveying roller 3 can be mounted on the inlet and outlet for input and output of the strip steel. One side of the mounting cross plate 10 is provided with a servo motor 11 connected to the strip steel conveying roller 3 for driving the strip steel conveying roller 3 to rotate and orderly convey the strip steel. The upper cooling water spray pipe 4 and the lower cooling water spray pipe 5 are evenly provided on the corresponding side with a water spray head 12 for spraying water to cool the weld of the conveying steel strip. The welds on the strip steel have the function of cooling down. The output end of the water pump 7 is connected to a water outlet pipe 13, which can transport water to the water spray head 12 for spraying to cool the welds. The other end of the water outlet pipe 13 is connected through the upper cooling water spray pipe 4 and the lower cooling water spray pipe 5. The water stored in the strip steel cooling water tank 1 can be pumped out and transported to the water spray head 12 through the upper cooling water spray pipe 4 and the lower cooling water spray pipe 5. The input end of the water pump 7 is connected to a filter 14 through a pipeline, and the input pipeline of the filter 14 extends through the strip steel cooling water tank 1, so that the used water can be filtered for metal powder before being pumped out for use.

[0021] On both sides of the bottom end of the draw - out filter water tank 8, there are filter water tank support strips 15 fixed on the inner side walls of the strip steel cooling water tank 1, enabling the draw - out filter water tank 8 to be disassembled and assembled by drawing, so as to facilitate the cleaning of metal impurities in the draw - out filter water tank 8. And at one end of the draw - out cavity on the outer side of the strip steel cooling water tank 1 where the draw - out filter water tank 8 is located, there is a draw - out plate sealing plate to prevent water from splashing out during the filtration of metal impurities. At the four inner corners of the draw - out filter water tank 8, there are support gaskets 16, and on the support gaskets 16, there are impurity filter plates 17 for filtering the water flowing downward, which is conducive to the disassembly, installation and replacement of the impurity filter plates 17, and is also convenient for cleaning the metal impurities on the impurity filter plates 17 during use.

[0022] Specifically, during use, first, water is injected into the strip steel cooling water tank 1 until it reaches an appropriate water level. Subsequently, the servo motor 11 is started through external control to drive the strip steel conveyor rollers 3 on the front and rear sides of the cooling splash - proof cover 2 to rotate. The rotation of the strip steel conveyor rollers 3 conveys the welded strip steel from the feeding end into the interior of the cooling splash - proof cover 2, and the strip steel passes through between the upper cooling spray pipe 4 and the lower cooling spray pipe 5. Then, the external controller controls the servo motor 11 to pause for forging. Subsequently, the water pump 7 is started to pump out the water in the strip steel cooling water tank 1. The pumped - out water passes through the filter 14 to filter the metal powder in the water to avoid damage to the equipment. Subsequently, the filtered water is conveyed to the water outlet pipe 13, and the water in the water outlet pipe 13 is conveyed to the upper cooling spray pipe 4 and the lower cooling spray pipe 5. The water in the upper cooling spray pipe 4 and the lower cooling spray pipe 5 sprays out relatively from the uniformly arranged spray nozzles 12, so that the water sprays on the welds on the upper and lower surfaces of the strip steel, thereby realizing the synchronous spray cooling of the two - side welds of the strip steel, further shortening the cooling time of the strip steel welds, and further improving the efficiency of strip steel welding and cooling. Subsequently, the used water flows downward and is guided by the inclined surface guide block 6 to flow to one side into the draw - out filter water tank 8, and the metal impurities in the water are filtered out by the impurity filter plates 17 arranged inside it to avoid blockage of the pipeline and damage to the equipment caused by the presence of impurities. The filtered water is cyclically pumped out by the water pump 7 and adsorbed and filtered by the filter 14 for metal powder, so as to recycle the water and reduce the waste of water resources.

[0023] Finally, it should be noted that the above - mentioned are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A weld seam cooling device, comprising a steel strip cooling water trough (1), and a cooling splash shield (2) at the end of the steel strip cooling water trough (1) for spraying water to cool and prevent splashing during steel strip transportation, characterized in that: The feeding and discharging ends of the cooling splash shield (2) are provided with strip conveying rollers (3) for conveying the strip steel to the strip steel cooling water trough (1) after welding. The top end of the cooling splash shield (2) is laterally provided with an upper cooling water spray pipe (4) for spraying water to cool the upper end face weld of the strip steel. The inner port of the strip steel cooling water trough (1) is laterally provided with a lower cooling water spray pipe (5) for spraying water to cool the lower end face weld of the strip steel. An inclined guide block (6) for guiding downwardly flowing water is provided on one side of the interior of the strip steel cooling water trough (1). The upper cooling water spray pipe (4) and the lower cooling water spray pipe (5) are connected to the input port of a water pump (7) installed in the inner cavity of the inclined guide block (6) through a water delivery pipe. A pull-out filter water trough (8) is provided on one side of the inclined guide block (6) and extends to the outer side of the strip steel cooling water trough (1).

2. A weld cooling device according to claim 1, characterized in that: The cooling splash shield (2) is provided with an inlet and outlet slot (9) for feeding and discharging the strip steel at the front and rear sides, and a mounting cross plate (10) for mounting the strip steel conveying roller (3) at the end is provided at the bottom side of the inlet and outlet slot (9), and a servo motor (11) connected to the strip steel conveying roller (3) is provided on one side of the mounting cross plate (10).

3. A weld cooling device according to claim 1, characterized in that: Water spray heads (12) for spraying water to cool the weld seams of the conveying steel strip are evenly arranged on the corresponding sides of the upper cooling water spray pipe (4) and the lower cooling water spray pipe (5).

4. A weld cooling device according to claim 1, characterized in that: The output end of the water pump (7) is connected to a water outlet pipe (13), the other end of the water outlet pipe (13) is connected to the upper cooling water spray pipe (4) and the lower cooling water spray pipe (5), and the input end of the water pump (7) is connected to a filter (14) through a pipeline, and the input pipeline of the filter (14) extends through the strip cooling water tank (1).

5. A weld cooling device according to claim 1, characterized in that: The bottom end of the pull-out filter water trough (8) is provided with filter water trough support strips (15) fixed on the inner side walls of the strip steel cooling water trough (1), and the pull-out filter water trough (8) is provided with a pull-out plate sealing plate at one end of a pull-out cavity provided on one side outside the strip steel cooling water trough (1).

6. A weld cooling device according to claim 1, characterized in that: Support gaskets (16) are provided at the four inner corners of the pull-out water filter trough (8), and impurity filter plates (17) for filtering downwardly flowing water are provided on the support gaskets (16).

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