A weld coating mechanism

Abstract

This invention provides a weld seam coating mechanism that enables accurate and reliable coating positioning and continuous coating, thereby improving coating efficiency. It includes: a central inner conveyor frame, an inlet conveyor belt, a tank guide holder, a film conveying mechanism, a coating mechanism, and an outlet conveyor belt. The central inner conveyor frame is arranged along the conveying direction of the tank and corresponds to the central cavity area of ​​the tank. The central inner conveyor frame extends to the output end of the coating mechanism. The inlet conveyor belt forms an inverted V-shaped conveyor belt converging towards the center from both sides. The two conveyor belts are synchronously driven by a first servo motor and a gear reversing mechanism. At least one set of tank guide holders is disposed at the inlet front end of the coating mechanism. Each tank guide holder includes several guide wheels that conform to the contour of the upper outer surface of the tank. These guide wheels are used to press and guide the output direction of the tank and ensure that the radial position does not move.

Description

Technical Field

[0001] This invention relates to the technical field of metal barrel manufacturing, specifically to a weld seam coating mechanism. Background Technology

[0002] After slicing, rolling, and welding, existing metal cylinders require coating the weld seams on their inner walls. Currently, the coating process only involves a film feeding device along the cylindrical cavity's travel direction. As the cylinder is conveyed in a straight line, the radial position of the weld seam changes. If the weld seam position changes during coating, the coating mechanism cannot adjust accordingly, leading to inaccurate coating placement. Furthermore, existing weld seam coating processes cannot be continuous, resulting in low efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a weld seam coating mechanism that ensures accurate and reliable coating position and enables continuous coating, thereby improving coating efficiency.

[0004] A weld seam coating mechanism, characterized in that it comprises:

[0005] Central inner conveyor belt;

[0006] Inlet conveyor belt;

[0007] Can track retainer;

[0008] Film conveying mechanism;

[0009] Lamination mechanism;

[0010] And export conveyor belts;

[0011] The central inner conveyor is arranged along the conveying direction of the tank and corresponds to the central cavity area of ​​the tank. The central inner conveyor extends to the output end of the coating mechanism. The inlet conveyor belt forms an inverted V-shaped conveyor belt that converges from both sides to the center. The conveyor belts on both sides are synchronously driven by a first servo motor and a gear reversing machine.

[0012] At least one set of the can channel retainers is disposed at the feeding front end of the coating mechanism. The can channel retainers include a plurality of guide wheels that are shaped to guide the upper outer surface of the can body. The plurality of guide wheels are used to press and guide the output direction of the can body and ensure that the radial position does not move.

[0013] The central inner conveyor frame has several bottom wheels arranged at intervals on both sides of the inlet conveyor belt, which are used to press against the inner wall of the tank and ensure that the radial position does not move.

[0014] A film conveying mechanism is provided at the position of the central inner conveyor frame at the front end of the film feeding mechanism. The film conveying mechanism includes a material belt roller and several film guide rollers. The film is conveyed along the film guide rollers to the film coating mechanism behind.

[0015] The coating mechanism includes an inner cavity pressing assembly and an upper pressing assembly. The inner cavity pressing assembly includes a front pressing roller and a rear pressing roller. Both the front and rear pressing rollers are supported at corresponding positions on the central concave conveying frame by linear springs and spring mounting seats. The upper pressing assembly includes a bracket, a second servo motor, an upper roller, and an upper pressure roller. The upper roller is located above the front pressing roller, and the upper pressure roller is located above the rear pressing roller. The second servo motor, the upper roller, and the upper pressure roller are all installed at corresponding positions on the bracket. The output end of the second servo motor is connected to the upper roller for actuation via a connecting structure.

[0016] The outlet conveyor belt is located behind the inlet conveyor belt, forming an inverted V-shaped conveyor belt that converges from both sides toward the center. The two conveyor belts are synchronously driven by a third servo motor and a gear reversing machine.

[0017] The third servo motor has a higher driving speed than the first servo motor, thus pulling off the film on the already coated barrel.

[0018] A further feature is that:

[0019] The output of the second servo motor is fixedly mounted on the drive pulley after passing through the reduction mechanism. The upper roller is provided with a driven pulley. The drive pulley and the driven pulley are connected by a synchronous belt. The synchronous belt is also provided with a pressure wheel, which is used to press the synchronous belt.

[0020] The starting end of the central inner conveyor is connected to a counterweight rod, which passes through the production line and enters the central cavity area of ​​the barrel of the inlet conveyor belt to ensure the centering of the central inner conveyor during the movement of the barrel and prevent it from deforming due to suspension.

[0021] The tank guide cage includes four sets of guide wheels arranged at intervals, conforming to the contour of the upper outer surface of the tank. The four sets of guide wheels are symmetrically arranged with respect to the vertical center plane to ensure stable and reliable guidance.

[0022] The V-shaped conveyor belt has a strong magnet inside, which attracts the drum and prevents the drum from moving radially.

[0023] After adopting the above technical solution, the tank is conveyed backward along the inverted V-shaped conveyor belt. It is radially positioned and conveyed by the tank guide frame and several bottom rollers. The second servo motor drives the film between the upper roller and the front pressure roller to be conveyed backward. Then, under the guidance of the rear pressure roller and the action of the upper pressure roller pressing the outer wall of the tank, the film is accurately and reliably pressed onto the inner wall of the weld. Afterward, the tank switches from the inlet conveyor belt to the outlet conveyor belt. The speed of the outlet conveyor belt is greater than that of the inlet conveyor belt. When the other tank and the film in front are pressed down by the upper pressure roller and the rear pressure roller, the tank that has been coated on the outlet conveyor belt is torn off the film by the force of the speed difference of the tank movement, so as to carry out continuous coating operation. Afterward, only the coating protrusions need to be repaired. This makes the coating position accurate and reliable and enables continuous coating, thereby improving the coating efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main view structure of the present invention;

[0025] Figure 2 This is a side view structural diagram of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the main view of the present invention;

[0027] The names corresponding to the serial numbers in the diagram are as follows:

[0028] The following components are included: central inner conveyor frame 10, bottom roller 11, inlet conveyor belt 20, tank track retainer 30, guide roller 31, film conveying mechanism 40, material belt roller 41, film guide roller 42, film coating mechanism 50, front pressing roller 51, rear pressing roller 52, linear spring 53, bracket 54, second servo motor 55, upper roller 56, upper pressure roller 57, reduction mechanism 58, synchronous belt 59, pressing roller 591, outlet conveyor belt 60, third servo motor 61, third gear reversing mechanism 62, first servo motor 70, first gear reversing mechanism 80, counterweight bar 90, and tank body 100. Detailed Implementation

[0029] A weld seam coating mechanism, see Figures 1-3 It includes a central inner conveyor frame 10, an inlet conveyor belt 20, a tank retainer 30, a film conveying mechanism 40, a film coating mechanism 50, and an outlet conveyor belt 60.

[0030] The central inner conveyor frame 10 is arranged along the conveying direction of the tank 100 and corresponds to the central cavity area of ​​the tank 100. The central inner conveyor frame 10 extends to the output end of the coating mechanism 50. The inlet conveyor belt 20 forms an inverted V-shaped conveyor belt that converges from both sides to the center. The conveyor belts on both sides are synchronously driven by the first servo motor 70, the first gear reversing machine 80, and several guide rollers. The V-shaped conveyor belt is equipped with a strong magnet inside, which attracts the tank body so that the tank body will not move radially. In specific implementation, the two conveyor belts form an inverted V-shaped conveyor belt with an angle of 90 degrees.

[0031] In specific implementation, a set of tank track retainers 30 is set at the front end of the feeding of the coating mechanism 50. The tank track retainer 30 includes four sets of guide wheels 31 that are shaped to guide the upper outer surface of the tank body 100. The four sets of guide wheels 31 are symmetrically arranged relative to the vertical center plane. The guide wheels 31 are used to press and guide the output direction of the tank body and ensure that the radial position does not move.

[0032] The central inner conveyor frame 10 is provided with several bottom wheels 11 arranged at intervals on both sides of the inlet conveyor belt 20. The bottom wheels 11 are used to press against the inner wall of the tank 100 to ensure that the radial position does not move.

[0033] A film conveying mechanism 40 is provided at the position of the central inner conveyor frame 10 at the front end of the film feeding mechanism 50. The film conveying mechanism 40 includes a material belt roller 41 and a plurality of film guide rollers 42. The film 110 is conveyed to the film feeding mechanism 50 behind along the film guide rollers 42.

[0034] The coating mechanism 50 includes an inner cavity pressing assembly and an upper pressing assembly. The inner cavity pressing assembly includes a front pressing roller 51 and a rear pressing roller 52. Both the front pressing roller 51 and the rear pressing roller 52 are supported at corresponding positions on the central concave conveyor frame 10 by linear springs 53 and spring mounting seats. The upper pressing assembly includes a bracket 54, a second servo motor 55, an upper roller 56, and an upper pressure roller 57. The upper roller 56 is located at the front pressing roller. Above wheel 51, upper pressure wheel 57 is located above rear pressure roller 52. Second servo motor 55, upper roller 56, and upper pressure wheel 57 are all installed at corresponding positions on bracket 54. The output end of second servo motor 55 is fixed to the drive pulley after passing through reduction mechanism 58. A driven pulley is provided on the upper roller. The drive pulley and the driven pulley are connected by synchronous belt 59. Synchronous belt 59 is also equipped with pressure wheel 591, which is used to press synchronous belt 59.

[0035] The outlet conveyor belt 60 is located behind the inlet conveyor belt 10, forming an inverted V-shaped conveyor belt that converges from both sides toward the center. The conveyor belts on both sides are synchronously driven by the third servo motor 61 and the third gear reversing machine 62.

[0036] The third servo motor 61 has a higher driving speed than the first servo motor 70, thereby pulling off the film on the already coated barrel.

[0037] In specific implementation: The starting end of the central inner conveyor frame 10 is connected to a counterweight rod 90. The counterweight rod 90 passes through the production line and enters the central cavity area of ​​the barrel 100 of the inlet conveyor belt 20 to ensure the centering of the central inner conveyor frame 10 during the barrel's movement and prevent it from deforming due to suspension.

[0038] Its working principle is as follows: the tank is conveyed backward along an inverted V-shaped conveyor belt. The conveyor belt has a strong magnet, so it ensures that the radial position will not move. At the same time, the radial position is maintained and conveyed by the tank retainer and several bottom rollers. The second servo motor drives the film between the upper roller and the front pressure roller to be conveyed backward. Then, under the guidance of the rear pressure roller and the pressure of the upper pressure roller on the outer wall of the tank, the film is accurately and reliably pressed onto the inner wall of the weld. Afterward, the tank switches from the inlet conveyor belt to the outlet conveyor belt. The speed of the outlet conveyor belt is greater than that of the inlet conveyor belt. When the other tank and film in front are pressed down by the upper pressure roller and the rear pressure roller, the tank that has been coated on the outlet conveyor belt is torn off the film by the force of the speed difference of the tank movement, so as to carry out continuous coating operation. Afterward, only the coated protrusions need to be repaired. This makes the coating position accurate and reliable and can carry out continuous coating, thus improving the coating efficiency.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weld seam coating mechanism, characterized in that, It includes: Central inner conveyor belt; Inlet conveyor belt; Can track retainer; Film conveying mechanism; Lamination mechanism; And export conveyor belts; The central inner conveyor is arranged along the conveying direction of the tank and corresponds to the central cavity area of ​​the tank. The central inner conveyor extends to the output end of the coating mechanism. The inlet conveyor belt forms an inverted V-shaped conveyor belt that converges from both sides to the center. The conveyor belts on both sides are synchronously driven by a first servo motor and a gear reversing machine. At least one set of the can channel retainers is disposed at the feeding front end of the coating mechanism. The can channel retainers include a plurality of guide wheels that are shaped to guide the upper outer surface of the can body. The plurality of guide wheels are used to press and guide the output direction of the can body and ensure that the radial position does not move. The central inner conveyor frame has several bottom wheels arranged at intervals on both sides of the inlet conveyor belt, which are used to press against the inner wall of the tank and ensure that the radial position does not move. A film conveying mechanism is provided at the position of the central inner conveyor frame at the front end of the film feeding mechanism. The film conveying mechanism includes a material belt roller and several film guide rollers. The film is conveyed along the film guide rollers to the film coating mechanism behind. The coating mechanism includes an inner cavity pressing assembly and an upper pressing assembly. The inner cavity pressing assembly includes a front pressing roller and a rear pressing roller. Both the front and rear pressing rollers are supported at corresponding positions on the central concave conveying frame by linear springs and spring mounting seats. The upper pressing assembly includes a bracket, a second servo motor, an upper roller, and an upper pressure roller. The upper roller is located above the front pressing roller, and the upper pressure roller is located above the rear pressing roller. The second servo motor, the upper roller, and the upper pressure roller are all installed at corresponding positions on the bracket. The output end of the second servo motor is connected to the upper roller for actuation via a connecting structure. The outlet conveyor belt is located behind the inlet conveyor belt, forming an inverted V-shaped conveyor belt that converges from both sides toward the center. The two conveyor belts are synchronously driven by a third servo motor and a gear reversing machine. The third servo motor has a higher driving speed than the first servo motor, thus pulling off the film on the already coated barrel.

2. The weld seam coating mechanism as described in claim 1, characterized in that: The output of the second servo motor is fixedly mounted on the drive pulley after passing through the reduction mechanism. The upper roller is provided with a driven pulley. The drive pulley and the driven pulley are connected by a synchronous belt. The synchronous belt is also provided with a pressure wheel, which is used to press the synchronous belt tight.

3. A taping mechanism as defined in claim 1, wherein: The starting end of the central inner conveyor frame is connected to a counterweight rod, which passes through the production line and enters the central cavity area of ​​the barrel of the inlet conveyor belt.

4. A seam coating mechanism as claimed in claim 1, wherein: The tank track retainer includes four sets of guide wheels arranged at intervals, conforming to the contour of the upper outer surface of the tank body. The four sets of guide wheels are symmetrically arranged relative to the vertical center plane.

5. A seam coating mechanism as claimed in claim 1, wherein: The V-shaped conveyor belt has a strong magnet inside.

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