Roller ring surface spraying device

Abstract

The utility model belongs to the technical field of spraying devices, and particularly relates to a roller ring surface spraying device. A roller ring surface spraying device comprises a machine box, a rotating base used for supporting and driving a roller ring workpiece to rotate is arranged in the machine box, a first spraying head and a second spraying head are arranged on one side of the rotating base, and the first spraying head and the second spraying head are arranged in the vertical direction in a spaced mode. The spraying directions of the first spraying head and the second spraying head face the side of the rotating base, the first spraying head and the second spraying head are used for spraying titanium aluminum chromium nitride to a roll collar workpiece, and the spraying direction of the first spraying head and the spraying direction of the second spraying head are arranged in a crossed mode. The titanium-aluminum-chromium nitride spraying device has the advantage of improving the titanium-aluminum-chromium nitride spraying efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of spraying devices, in particular to a roller ring surface spraying device. Background Art

[0002] During the rebar rolling process, rollers come into contact with steel billets at temperatures between 900 and 1000 degrees Celsius multiple times to complete the final rolling process. Due to the harsh working environment at the rolling site, the rollers' service life is shortened. Therefore, they are coated with multiple layers of ultra-hard and ultra-tough titanium aluminum chromium nitride (TiAlCrN) to protect and extend their service life.

[0003] A Chinese patent application numbered 201821576211.X discloses an automatic spraying machine, comprising a chassis, a spraying chamber formed inside the chassis, a spray gun, a spray gun driving device for driving the spray gun to move up and down, a rotating seat, a rotating driving device for driving the rotating seat to rotate, and a limiting device for rotatably limiting the workpiece to be sprayed on the rotating seat.

[0004] The above solution places the workpiece on a rotating base, which allows it to rotate while a spray gun applies the desired particles. However, titanium aluminum chromium nitride (TiACN) coatings are unique in that they are fine, non-sticky particles that require high-pressure impact to adhere to the workpiece surface. When spraying TiACN with the aforementioned spray gun, some particles will rebound after impacting the roller ring, resulting in low spray efficiency. Utility Model Content

[0005] The utility model aims to provide a roller ring surface spraying device which can improve the titanium aluminum chromium nitride spraying efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a roller ring surface spraying device, comprising a chassis, a rotating seat for supporting and driving the roller ring workpiece to rotate is provided in the chassis, a first nozzle and a second nozzle are provided on one side of the rotating seat, the first nozzle and the second nozzle are spaced apart in the up and down directions, the spraying directions of the first nozzle and the second nozzle are both toward the side of the rotating seat, the first nozzle and the second nozzle are used to spray titanium aluminum chromium nitride on the roller ring workpiece, and the spraying direction of the first nozzle is cross-arranged with the spraying direction of the second nozzle.

[0007] During actual operation, the operator places the roller ring workpiece on a rotating seat, which causes the roller ring workpiece to rotate. Simultaneously, the first and second nozzles spray titanium aluminum chromium nitride onto the roller ring workpiece. Both the first and second nozzles spray titanium aluminum chromium nitride onto the roller ring workpiece using high-pressure airflow. Some titanium aluminum chromium nitride particles will partially rebound after impacting the roller ring workpiece. Some of these rebounding titanium aluminum chromium nitride particles will move toward the second nozzle. At this time, the high-pressure airflow from the second nozzle will suppress some of these rebounding titanium aluminum chromium nitride particles, causing them to re-impact the roller ring workpiece and adhere to the surface of the roller ring workpiece. The principle of the second nozzle spraying titanium aluminum chromium nitride is the same as above and will not be repeated here.

[0008] This solution cross-arranges the first nozzle and the second nozzle so that when spraying titanium aluminum chromium nitride, some rebounding titanium aluminum chromium nitride particles can be suppressed by each other, thereby ensuring that most of the titanium aluminum chromium nitride can adhere to the circumferential outer wall of the roller ring workpiece, thereby increasing the spraying efficiency.

[0009] Preferably, the first nozzle and the second nozzle are both equipped with a rotation mechanism, and the rotation mechanism enables the spraying angles of the first nozzle and the second nozzle to rotate up and down synchronously.

[0010] The rotation mechanism synchronizes the vertical movement of the spray angles of the first and second nozzles, thereby spraying titanium aluminum chromium nitride on both the upper and lower ends of the circumferential outer wall of the roller ring workpiece. This synchronized vertical movement ensures that some of the titanium aluminum chromium nitride can be blown back by the high-pressure airflow from the first and second nozzles after rebounding. The rotation mechanism can be achieved by combining a rotating shaft with a motor to synchronize the two rotating shafts, thereby achieving synchronized vertical movement of the spray angles of the first and second nozzles. Alternatively, a connecting rod mechanism can be used to synchronize the vertical movement of the spray angles of the first and second nozzles, and so on.

[0011] Preferably, the rotating mechanism includes a first rotating shaft to which the first nozzle is fixed and a second rotating shaft to which the second nozzle is fixed. The first rotating shaft and the second rotating shaft are linked through a connecting rod mechanism, and the connecting rod mechanism is equipped with a first driver; the connecting rod mechanism realizes the synchronous rotation of the first rotating shaft and the second rotating shaft under the action of the first driver.

[0012] The connecting rod mechanism is provided to achieve synchronous upward and downward movement of the spraying angles of the first nozzle and the second nozzle, wherein the connecting rod mechanism can be any existing connecting rod structure that can achieve synchronous rotation of the first rotating shaft and the second rotating shaft.

[0013] Preferably, there are multiple rotating seats and they are arranged on a public turntable. The public turntable is equipped with a second driver that drives the public turntable to rotate. Under the action of the second driver, the public turntable can rotate the rotating seat to the first nozzle and the second nozzle side.

[0014] By arranging a revolution disk and arranging a plurality of rotating seats on the revolution disk, the rotating seats can be rotated one by one to the side of the first nozzle and the second nozzle to realize spraying, which is more efficient.

[0015] Preferably, a driven pulley is provided at the lower end of the rotating seat, and a belt is provided under the revolution disk, and the belt is rotated by a driving pulley; when the revolution disk rotates the rotating seat rod to the first nozzle and the second nozzle side, the driven pulley contacts the belt and rotates.

[0016] When the rotary disk rotates the rotating seat rod to the first nozzle and the second nozzle side, the driven pulley contacts the belt and rotates, and there is no need to set a motor on the lower side of each rotary disk, making the structure more optimal.

[0017] Preferably, the rotating seat includes a core shaft for extending into the inner hole of the roller ring workpiece, and a quick clamp for pressing the roller ring workpiece is provided on the top of the core shaft.

[0018] The core shaft can position the roller ring workpiece, and the quick clamp can press the roller ring workpiece to ensure the stability of the roller ring workpiece during rotation. Among them, the quick clamp is any existing quick clamp that can achieve the workpiece being pressed.

[0019] Preferably, the upper end of the core shaft is provided with a T-shaped slot, and the lower end of the quick clamp is provided with a T-shaped portion that cooperates with the T-shaped slot.

[0020] The cooperation between the T-slot and the T-shaped portion can limit the upper and lower positions of the quick clamp, and at the same time facilitates the quick clamp to be quickly installed on the core shaft and press the roller ring, and can also quickly remove the quick clamp from the core shaft.

[0021] Preferably, the core shaft includes a thin section and a thick section from top to bottom, and the thick section is used to contact and cooperate with the inner wall of the roller ring; the core shaft is equipped with an end pressure plate, and the end pressure plate is used to press the roller ring workpiece, and the end pressure plate is provided with a step structure that cooperates with the thin section and the thick section.

[0022] A step structure is formed between the thin section and the thick section of the core shaft. At the same time, the thick section contacts and cooperates with the inner wall of the roller ring. The end pressure plate is provided with a step structure that cooperates with the thin section and the thick section, so that when spraying titanium aluminum chromium nitride, titanium aluminum chromium nitride can be prevented from entering the inner hole of the roller ring workpiece.

[0023] The utility model has the advantage of improving the spraying efficiency of titanium aluminum chromium nitride on the roller ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2A schematic diagram of the internal structure of the chassis.

[0026] Figure 3 It is a structural schematic diagram of the first nozzle and the second nozzle.

[0027] Figure 4 This is a schematic diagram of the structure on the lower side of the rotary disk.

[0028] Figure 5 This is a structural diagram of the turntable.

[0029] Figure 6 It is a structural diagram of the rotating seat.

[0030] Figure 7 Schematic diagram of the structure of the end pressure plate.

[0031] Figure 8 It is a cross-sectional view of the rotating seat after the roller ring is installed.

[0032] Figure numbers: 1. Chassis; 21. First nozzle; 22. Second nozzle; 3. Support plate; 4. Revolution disk; 41. Second drive; 5. Belt; 51. Third drive; 52. Driving pulley; 53. Driven pulley; 6. Quick clamp; 61. T-shaped portion; 71. First rotating shaft; 721. First linkage block; 72. Second rotating shaft; 722. Second linkage block; 723. Third linkage block; 73. First connecting rod; 74. Second connecting rod; 75. First drive; 8. Core shaft; 81. Thin section; 82. Thick section; 83. T-slot; 84. Rotating seat; 9. End face pressure plate; 91. Step structure; 100. Roller ring. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 3 As shown, this embodiment discloses a roller ring surface spraying device, including a chassis 1, a revolution disk 4 is provided on the left side of the chassis 1, and a first nozzle 21 and a second nozzle 22 are provided on the right side. The revolution disk 4 is provided with four rotating seats 84 that are evenly spaced and can rotate on their own. The rotating seats 84 are used to place the roller ring 100. When the revolution disk 4 rotates one of the rotating seats 84 to the side of the first nozzle 21 and the second nozzle 22, the spraying direction of the first nozzle 21 and the second nozzle 22 is aligned with the circumferential side wall of the roller ring 100. The first nozzle 21 and the second nozzle 22 are spaced apart in the vertical direction, and the spraying directions of the first nozzle 21 and the second nozzle 22 are arranged crosswise. The first nozzle 21 and the second nozzle 22 are used to spray titanium aluminum chromium nitride on the roller ring 100, and can blow some of the rebounded titanium aluminum chromium nitride particles back onto the roller ring 100.

[0035] like Figure 2 and Figure 3 As shown, support plates 3 are provided on either side of the first and second nozzles 21, 22. A first rotating shaft 71 and a second rotating shaft 72 are provided between the support plates 3, and both the first and second rotating shafts 71, 72 are rotatably connected to the support plates 3. The two first nozzles 21 are fixed to the first rotating shaft 71, and the two second nozzles 22 are fixed to the second rotating shaft 72. A first linkage block 721 is fixed to the end of the first rotating shaft 71, and a second linkage block 722 is fixed to the end of the second rotating shaft 72. The first and second linkage blocks 721, 722 are linked by a first connecting rod 73. A third linkage block 723 is also fixed to the end of the first rotating shaft 71. A second connecting rod 74 is rotatably connected to the third linkage block 723. The output section of a first driver 75 is connected to a rotating disk, and the second connecting rod 74 is rotatably connected to the first driver 75. The first driver 75 is a servo motor. When the first driver 75 drives the second connecting rod 74, the spray angles of the first and second nozzles 21, 22 move synchronously up and down.

[0036] like Figures 2 to 5 As shown, the revolution disk 4 is rotated by a second driver 41, which can be any existing servo motor. A belt 5 is provided beneath the revolution disk 4. The belt 5 is rotated by a driving pulley 52, which is coupled to a third driver 51, which can be any existing servo motor. Each rotating base 84 has a driven pulley 53 at its lower end. When the revolution disk 4 rotates toward the first and second nozzles 21 and 22, the driven pulleys 53 come into contact with the belt 5 and rotate. The driving and driven pulleys 52 and 53 keep the belt 5 taut at all times.

[0037] like Figures 6 to 8 As shown, a core shaft 8 is mounted on a rotating seat 84. The diameter of the core shaft 8 is smaller than that of the rotating seat 84. From top to bottom, the core shaft 8 comprises a thin section 81 and a thick section 82. The thick section 82 can be inserted into the inner hole of the roller ring 100 and engage with the inner wall of the roller ring 100. The top of the thin section 81 is equipped with a quick clamp 6 for clamping the roller ring 100. A T-shaped slot 83 is provided at the upper end of the thin section 81, and a T-shaped portion 61 is provided at the lower end of the quick clamp 6 to extend into the T-shaped slot 83. The core shaft 8 is equipped with an end pressure plate 9, which has a stepped structure 91 that cooperates with the thin section 81 and the thick section 82.

[0038] During actual operation, the operator opens the door of the chassis 1 and places the roller rings 100 one by one on the core shaft 8 of the rotating seat 84. The operator then covers the roller rings 100 with the end pressure plate 9, secures the quick clamp 6 to the top of the core shaft 8, and presses the quick clamp 6 against the roller ring 100, securing the roller ring 100 to the rotating seat 84. The revolving disk 4 rotates the rotating seat 84 toward the first spray head 21 and the second spray head 22. The driven pulley 53 below the rotating seat 84 contacts the belt 5 and rotates. The first spray head 21 and the second spray head 22 begin spraying titanium aluminum chromium nitride on the roller ring 100. Simultaneously, the first driver 75 drives the spray angles of the first and second spray heads 21 and 22 to move up and down synchronously to complete the spraying of the roller ring 100. In the spraying process of the first nozzle 21 and the second nozzle 22, 1. After the roller ring 100 rotates a certain angle, it does not rotate. The first nozzle 21 and the second nozzle 22 spray up and down, so that the circumferential side wall of the roller ring 100 has strips of spray extending in the vertical direction. Then, the roller ring 100 continues to rotate a certain angle, and the above operation is repeated to complete a plurality of strips of spray extending in the vertical direction. 2. The rotating seat 84 causes the roller ring 100 to rotate. The first nozzle 21 and the second nozzle 22 spray up and down, so that the circumferential side wall of the roller ring 100 has zigzag strips of spray. 3. Repeat step 2, so that the circumferential side wall of the roller ring 100 has zigzag strips of spray again, and the zigzag strips of spray combined with the zigzag strips of spray in step 2 form a mesh spray. After spraying four roller rings 100, the operator removes the roller ring 100 and performs a heat stress relief treatment.

Claims

1. A roller ring surface spraying device, comprising a chassis, wherein a rotating seat is provided in the chassis for supporting and driving the roller ring workpiece to rotate, characterized in that: A first nozzle and a second nozzle are provided on one side of the rotating seat. The first nozzle and the second nozzle are spaced apart in the up and down directions. The first nozzle and the second nozzle are both facing the side of the rotating seat. The first nozzle and the second nozzle are used to spray titanium aluminum chromium nitride on the roller ring workpiece, and the spraying direction of the first nozzle is cross-arranged with the spraying direction of the second nozzle.

2. The roller ring surface spraying device according to claim 1, characterized in that: The first nozzle and the second nozzle are both equipped with a rotation mechanism, and the rotation mechanism enables the spraying angles of the first nozzle and the second nozzle to rotate up and down synchronously.

3. The roller ring surface spraying device according to claim 2, characterized in that: The rotating mechanism includes a first rotating shaft to which the first nozzle is fixed and a second rotating shaft to which the second nozzle is fixed, the first rotating shaft and the second rotating shaft are linked by a connecting rod mechanism, and the connecting rod mechanism is equipped with a first driver; The connecting rod mechanism realizes the synchronous rotation of the first rotating shaft and the second rotating shaft under the action of the first driver.

4. The roller ring surface spraying device according to claim 1, characterized in that: There are multiple rotating seats and they are arranged on the public rotating disk. The public rotating disk is equipped with a second driver that drives the public rotating disk to rotate. Under the action of the second driver, the public rotating disk can rotate the rotating seat to the first nozzle and the second nozzle side.

5. The roller ring surface spraying device according to claim 4, characterized in that: A driven pulley is provided at the lower end of the rotating seat, and a belt is provided under the revolution disk, and the belt is rotated by the driving pulley; when the revolution disk rotates the rotating seat to the first nozzle and the second nozzle side, the driven pulley contacts the belt and rotates.

6. The roller ring surface spraying device according to any one of claims 1 to 5, characterized in that: The rotating seat includes a core shaft for extending into the inner hole of the roller ring workpiece, and the top of the core shaft is provided with a quick clamp for pressing the roller ring workpiece.

7. The roller ring surface spraying device according to claim 6, characterized in that: The upper end of the core shaft is provided with a T-shaped slot, and the lower end of the quick clamp is provided with a T-shaped portion that matches the T-shaped slot.

8. The roller ring surface spraying device according to claim 6, characterized in that: The core shaft includes a thin section and a thick section from top to bottom, and the thick section is used to contact and cooperate with the inner wall of the roller ring; the core shaft is equipped with an end face pressure plate, and the end face pressure plate is used to press the roller ring workpiece, and the end face pressure plate is provided with a step structure that cooperates with the thin section and the thick section.

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