A cold-rolled sheet surface rust-proof treatment device

Abstract

This utility model belongs to the field of rust prevention treatment technology for cold-rolled steel sheets, and specifically discloses a rust prevention treatment device for the surface of cold-rolled steel sheets, including a conveyor. An oiling machine is fixedly installed on one side of the upper end of the conveyor, and a pretreatment component is set on the side of the conveyor near the oiling machine. The pretreatment component includes a bracket fixedly connected to the upper end of the conveyor. Through the separation groove opened on the separation block, it tightly fits the edge of the cold-rolled steel sheet, so that the burrs on both sides are effectively scraped off when the cold-rolled steel sheet is conveyed, avoiding local accumulation of oil film at the burr protrusions and the formation of oil film gaps in the burr gaps. At the same time, the separation blocks on both sides can be alternately operated through the transmission structure to replace the separation blocks. When the separation block that has been scraped off the burrs leaves the edge of the cold-rolled steel sheet, the iron filings attached to the surface can fall off naturally under the action of gravity, without the need for frequent machine stops for cleaning, ensuring the continuity of the pretreatment operation, and effectively improving the uniformity and rust prevention performance stability of the rust-preventive oil film on the surface of the cold-rolled steel sheet.

Description

Technical Field

[0001] This utility model belongs to the field of rust prevention treatment technology for cold-rolled steel sheets, and specifically relates to a rust prevention treatment device for the surface of cold-rolled steel sheets. Background Technology

[0002] Currently, in the field of rust prevention treatment of cold-rolled steel sheets, conveyors are often used to continuously transport the cold-rolled steel sheets, and oiling machines are used to complete the coating of rust-preventive oil. After the cold-rolled steel sheets are processed by cutting and other processes, burrs are easily formed on the cut edges on both sides. In the existing rust prevention treatment process, some processes will simply treat the burrs before oiling, while others will directly enter the oiling process. The presence of burrs will directly affect the coating state of the rust-preventive oil on the surface of the cold-rolled steel sheet.

[0003] In actual rust prevention processes, if the burrs on both sides of the cold-rolled sheet are not pretreated stably and continuously before oiling, the burrs can cause local accumulation of oil film at the burr protrusions when the oiling roller applies rust-preventive oil, and oil film gaps will appear in the gaps between the burrs, making it difficult to form a uniform rust-preventive oil film. This will result in oil film coverage defects on the surface of the cold-rolled sheet, ultimately affecting the stability of the rust prevention performance of the cold-rolled sheet surface. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rust prevention treatment device for cold-rolled steel sheets.

[0005] To achieve the above objectives, this utility model provides a rust prevention treatment device for cold-rolled steel sheet surface, including a conveyor, an oiling machine fixedly installed on one side of the upper end of the conveyor, and a pretreatment component provided on the side of the conveyor near the oiling machine; The pretreatment component includes a bracket fixedly connected to the upper end of the conveyor. A bearing plate is fixedly connected to the upper end of the bracket. The upper end of the bearing plate is provided with symmetrically arranged guide grooves, and rectangular blocks are slidably connected in each of the guide grooves.

[0006] In the above technical solution, a transmission shaft is fixedly connected through the center of each rectangular block, and a separation block is fixedly connected to the lower end of each transmission shaft. Each separation block has a separation slot. The through-fixed connection between the rectangular block and the transmission shaft can directly transmit the directional sliding of the rectangular block to the transmission shaft, ensuring that the movement trajectories of the two are consistent.

[0007] In the above technical solution, the separating block is further inclined, the separating slot has a depth of 30mm, and the edges of the separating slot are rounded. The inclination angle of the separating block forms an acute angle with the conveying direction of the cold-rolled plate, so that the separating slot can cut into the burr area from the oblique direction, increasing the contact area with the burr. The rounded edges of the slot can eliminate sharp contact points and avoid rigid scraping with the edge of the plate.

[0008] In the above technical solution, the upper end of the bearing plate is rotatably connected to two symmetrically arranged circular shafts, the outer wall of each circular shaft is fixedly connected to a transmission plate, the transmission plate is provided with symmetrically arranged extrusion grooves, and the upper end of each circular shaft is fixedly connected to a gear.

[0009] In the above technical solution, a bidirectional cylinder is fixedly installed on the upper end of the bearing plate, and racks are fixedly connected to both output ends of the bidirectional cylinder, and the racks are meshed with gears.

[0010] In the above technical solution, the guide groove cross section is stepped and contracted, and the rectangular block is slidably connected to the guide groove. The stepped and contracted cross section structure can limit the rectangular block, restricting it to slide only along the length direction of the guide groove, thus preventing it from moving or deviating from the track during movement.

[0011] In the above technical solution, the oiling machine is a roller coating type, and the oiling machine includes 2-3 oiling rollers, of which at least one is an actively driven roller.

[0012] Compared with existing technologies, this invention has the following advantages: the separation slots on the separation blocks closely fit the edges of the cold-rolled sheet, effectively scraping off burrs on both sides during conveying, preventing local accumulation of oil film at the burr protrusions and avoiding gaps in the oil film at the burr gaps. At the same time, the separation blocks on both sides can be alternately operated through the transmission structure to replace the separation blocks. When the separation blocks that have been scraping off burrs leave the edge of the cold-rolled sheet, the iron filings attached to the surface can fall off naturally under the action of gravity, eliminating the need for frequent machine stops for cleaning, ensuring the continuity of pretreatment operations, and effectively improving the uniformity and stability of the anti-rust oil film on the surface of the cold-rolled sheet. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a partial structural front view proposed in this utility model; Figure 3 This is a partial structural side view proposed in this utility model; Figure 4 This is a partial structural cross-sectional view of the present invention.

[0014] In the diagram: 1. Conveyor, 2. Oiling machine, 3. Support, 4. Bearing plate, 5. Guide groove, 6. Rectangular block, 7. Drive shaft, 8. Separating block, 9. Separating slot, 10. Round shaft, 11. Drive plate, 12. Extrusion groove, 13. Gear, 14. Double-acting cylinder, 15. Rack. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1-4 The cold-rolled steel sheet surface anti-rust treatment device shown includes a conveyor 1, an oiling machine 2 fixedly installed on one side of the upper end of the conveyor 1, and a pretreatment component arranged on the side of the conveyor 1 near the oiling machine 2; the pretreatment component includes a bracket 3 fixedly connected to the upper end of the conveyor 1, a bearing plate 4 fixedly connected to the upper end of the bracket 3, and symmetrically arranged guide grooves 5 opened on the upper end of the bearing plate 4, with rectangular blocks 6 slidably connected in each guide groove 5.

[0017] A drive shaft 7 is fixedly connected through the center of each rectangular block 6. A separation block 8 is fixedly connected to the lower end of each drive shaft 7. A separation groove 9 is opened on each separation block 8. The separation block 8 is inclined. The groove depth of the separation groove 9 is 30mm. The edge of the groove of the separation groove 9 is rounded. Two symmetrically arranged round shafts 10 are rotatably connected to the upper end of the bearing plate 4. A drive plate 11 is fixedly connected to the outer wall of each round shaft 10. A symmetrically arranged extrusion groove 12 is opened on each drive plate 11. A gear 13 is fixedly connected to the upper end of each round shaft 10. A two-way cylinder 14 is fixedly installed on the upper end of the bearing plate 4. A rack 15 is fixedly connected to the output ends on both sides of the two-way cylinder 14. The rack 15 is meshed with the gear 13. The cross section of the guide groove 5 is stepped and tapered. The rectangular block 6 is slidably connected to the guide groove 5. The oiling machine 2 is a roller coating type. The oiling machine 2 includes 2-3 oiling rollers, and at least one of them is an active drive roller.

[0018] Working principle: When the rust prevention treatment of cold-rolled sheet is started, the cold-rolled sheet to be treated is first placed on conveyor 1. The operation of conveyor 1 drives the cold-rolled sheet to be transported towards oiling machine 2. When the cold-rolled sheet is about to reach oiling machine 2, it first enters the pretreatment component area.

[0019] When the bidirectional cylinder 14 is activated, the output ends on both sides of the bidirectional cylinder 14 extend synchronously, driving the rack 15, which is fixedly connected to the output end, to move away from the bidirectional cylinder 14; the movement of the rack 15 drives the gear 13 to rotate; the gear 13 is fixed to the upper end of the round shaft 10, and the rotation of the gear 13 directly drives the round shaft 10 to rotate around its own axis; the round shaft 10 then drives the transmission plate 11 to rotate around the round shaft 10.

[0020] The transmission plate 11 has symmetrically arranged extrusion grooves 12, which are sleeved on the outer wall of the transmission shaft 7. When the transmission plate 11 rotates in a circle, the extrusion grooves 12 exert a lateral extrusion force on the transmission shaft 7. The transmission shaft 7 is fixed through the center of the rectangular block 6, and the rectangular block 6 is slidably connected in the guide groove 5 at the upper end of the bearing plate 4. Therefore, under the force of the extrusion grooves 12, the transmission shaft 7 drives the rectangular block 6 to slide in a direction along the guide groove 5. The symmetrically arranged circular shafts 10 and transmission plate 11 on both sides rotate synchronously in opposite directions, so that the two sets of transmission shafts 7 drive the corresponding rectangular blocks 6 to slide in opposite directions along the guide groove 5.

[0021] A separation block 8 is fixedly connected to the lower end of the drive shaft 7. When the drive shaft 7 slides, it drives the separation block 8 to move. The separation block 8 is inclined and has a separation groove 9 with a groove depth of 30mm and a rounded corner at the groove opening. When a set of separation blocks 8 slides with the drive shaft 7 to the two sides of the cold-rolled plate, the separation groove 9 fits with the edge of the cold-rolled plate. The inclined separation block 8 scrapes off the burrs at the cut on both sides of the cold-rolled plate through the separation groove 9, realizing the burr pretreatment before oiling the cold-rolled plate and preventing the burrs from affecting the uniformity of the subsequent anti-rust oil coating.

[0022] After a set of separating blocks 8 completes the burr removal of a section of cold-rolled sheet, the output ends on both sides of the bidirectional cylinder 14 retract, causing the rack 15 to move in the opposite direction towards the bidirectional cylinder 14. The reverse movement of the rack 15 causes the gear 13 to rotate in the opposite direction, which in turn causes the round shaft 10 to rotate in the opposite direction. The reverse rotation of the round shaft 10 causes the transmission plate 11 to rotate in the opposite direction. The transmission plate 11 drives the transmission shaft 7 to slide in the opposite direction through the extrusion groove 12. The transmission shaft 7 then drives the rectangular block 6 to slide in the opposite direction along the guide groove 5, ultimately achieving the alternating action of the two sets of separating blocks 8: the "old separating block 8" that previously removed the burrs slides away from the edge of the cold-rolled sheet with the transmission shaft 7, and the iron filings attached to its surface fall off naturally under the action of gravity, avoiding the accumulation of iron filings that affect the subsequent scraping effect; at the same time, another set of "new separating blocks 8" slides to the two sides of the cold-rolled sheet with the transmission shaft 7 and continues to remove burrs from the subsequently conveyed cold-rolled sheet through the separating slot 9, ensuring the continuity of the pre-processing operation.

[0023] After the burr pretreatment is completed, the cold-rolled sheet continues to be conveyed by conveyor 1 to the oiling machine 2. The oiling machine 2 is a roller coating type and includes 2-3 oiling rollers. The active drive roller rotates and drives the other oiling rollers to rotate synchronously. When the cold-rolled sheet passes between the oiling rollers, the rotating oiling rollers evenly coat the upper and lower surfaces of the cold-rolled sheet with anti-rust oil, realizing the surface anti-rust treatment of the cold-rolled sheet. Finally, the cold-rolled sheet with anti-rust oil coating is conveyed out of the device by conveyor 1, and the entire surface anti-rust treatment process of the cold-rolled sheet is completed.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rust-proofing device for cold-rolled steel sheet surface, comprising a conveyor (1), wherein an oiling machine (2) is fixedly installed on one side of the upper end of the conveyor (1), characterized in that, The conveyor (1) is equipped with a pretreatment component on the side near the oiling machine (2); The pretreatment component includes a bracket (3) fixedly connected to the upper end of the conveyor (1), a bearing plate (4) fixedly connected to the upper end of the bracket (3), and symmetrically arranged guide grooves (5) opened on the upper end of the bearing plate (4), and rectangular blocks (6) are slidably connected in the guide grooves (5).

2. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 1, characterized in that, A drive shaft (7) is fixedly connected through the center of each rectangular block (6), and a separation block (8) is fixedly connected to the lower end of each drive shaft (7). A separation slot (9) is provided on each separation block (8).

3. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 2, characterized in that, The separation block (8) is inclined, the separation slot (9) has a depth of 30mm, and the edges of the separation slot (9) are rounded.

4. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 1, characterized in that, The upper end of the bearing plate (4) is rotatably connected to two symmetrically arranged round shafts (10). The outer wall of each round shaft (10) is fixedly connected to a transmission plate (11). Each transmission plate (11) is provided with a symmetrically arranged extrusion groove (12). The upper end of each round shaft (10) is fixedly connected to a gear (13).

5. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 4, characterized in that, A bidirectional cylinder (14) is fixedly installed on the upper end of the bearing plate (4). A rack (15) is fixedly connected to both output ends of the bidirectional cylinder (14). The rack (15) meshes with the gear (13).

6. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 1, characterized in that, The guide groove (5) has a stepped contraction in cross section, and the rectangular block (6) is slidably connected to the guide groove (5).

7. The rust prevention treatment device for cold-rolled steel sheet surface according to claim 1, characterized in that, The oiling machine (2) is a roller coating type, and the oiling machine (2) includes 2-3 oiling rollers, and at least one of them is an active drive roller.

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