A process for applying a film to the interior wall of a barrel

Abstract

The present application provides a process for attaching a film to the inner wall of a barrel, which makes the film attaching at lug position quick and convenient, and the film attaching is firm, and ensures the product quality. It comprises the following steps: a the barrel body produced in the previous process is sent into the step-by-step barrel holding conveying belt, at this time the position connecting line of the lugs on both sides is perpendicular to the conveying direction of the step-by-step barrel holding conveying belt; b the first baking mechanism is arranged at the starting position area of the step-by-step barrel holding conveying belt, the height area of the lugs of the barrel body is heated and baked by the first baking mechanism; c the barrel body is step-by-step conveyed to the cutting and film attaching station, the upper top mechanism of the cutting and film attaching station tops up the barrel body, the cutting and film attaching station attaches the cut profiled film to the lug area of the inner wall of the barrel body; d the barrel body is step-by-step conveyed to the film pre-pressing station, the pre-pressing head of the film pre-pressing station pre-presses the film to the corresponding position of the inner wall of the barrel body; e the barrel body is sent into the continuous conveying belt by the holding claws of the step-by-step barrel holding conveying belt.

Description

Technical Field

[0001] This invention relates to the technical field of inner film application for cylindrical barrels, specifically a process for attaching a thin film to the inner wall of a barrel. Background Technology

[0002] After the packaging barrel is manufactured, a film needs to be applied to the welding lugs on the inner wall of the barrel to prevent rust. The existing manufacturing process involves applying the film manually after the packaging barrel is manufactured, which is inefficient and the quality of manual application cannot be guaranteed. Therefore, there is an urgent need to develop a process that can automate the film application process. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a process for attaching a film to the inner wall of a barrel, which makes film application at the welding lug position quick, convenient, and secure, thus ensuring product quality.

[0004] A process for attaching a film to the inner wall of a barrel, characterized by comprising the following steps:

[0005] a. The barrel body completed in the previous process is sent into the stepping barrel conveyor belt. At this time, the line connecting the positions of the welding ears on both sides is perpendicular to the conveying direction of the stepping barrel conveyor belt.

[0006] b. A first baking mechanism is set at the starting position of the stepping conveyor belt to heat and bake the height area of ​​the welding lugs of the barrel, so that the film can adhere better.

[0007] c. The barrel is conveyed to the cutting and film-applying station by a stepping mechanism. The upper lifting mechanism of the cutting and film-applying station lifts the barrel, and the cutting and film-applying station applies the cut contour film to the welding lug area on the inner wall of the barrel.

[0008] d. The barrel is conveyed to the film pre-pressing station by stepping, and the pre-pressing head of the film pre-pressing station pre-presses the film onto the corresponding position on the inner wall of the barrel;

[0009] The gripper of the e-stepping bucket conveyor feeds the bucket into the continuous conveyor belt. A racetrack-shaped circulating belt is set at the upper part of the continuous conveyor belt. Several pre-pressing and following pressure head assemblies are evenly arranged on the racetrack-shaped circulating belt. For each bucket entering the continuous conveyor belt, the corresponding pre-pressing and following pressure head assembly extends into the bucket body, and the pressure heads on both sides of the pre-pressing and following pressure head pre-press the corresponding position of the film, until the pre-pressing and following pressure head assembly leaves the lower straight track area of ​​the racetrack-shaped circulating belt.

[0010] After the pressing is completed, the barrel is removed from the continuous conveyor belt and enters the next process.

[0011] Its further features are:

[0012] In step e, a second baking mechanism is provided on both sides of the continuous conveyor belt. The second baking mechanism is located at the corresponding height position of the welding ear. The second baking mechanism is arranged in a long strip shape and is continuously arranged along the length of the continuous conveyor belt. It fully heats the film application area of ​​the welding ear to ensure stable and reliable application.

[0013] The cutting and film-applying station includes two processes: cutting and applying. In the cutting process, a strip of material wider than the conformal film is rolled up and conveyed to the material conveying mechanisms on both sides. A suction cup is set in the height direction, and then the conformal film is cut off by the cutter and held by the suction cup. In the applying process, the YZ drive module drives the suction cup to move radially inward first, then move downward in the height direction, and then move radially outward, so that the conformal film on the suction cup is applied to the welding ear area of ​​the inner wall of the barrel.

[0014] In step e, the pre-pressure following pressure head assembly on both sides of the upper straight line and the two curved tracks of the racetrack-type circulation belt retracts radially towards the center, and the pre-pressure following pressure head assembly is set inward toward the racetrack in the height direction of the circulation belt, ensuring that the corresponding barrels are sequentially connected in the initial state.

[0015] By adopting this invention, the line connecting the positions of the welding ears on both sides of the already processed and manufactured barrel body is perpendicular to the conveying direction of the stepping barrel conveyor belt and conveyed to the cutting and film-applying station. The film is conveyed in roll form to the corresponding film cutting positions of the welding ears on both sides. Then, the conformal film is applied to the corresponding position on the inner wall of the welding ear by a suction cup driven by a two-dimensional linear drive module. Then, the conformal film is pre-pressed onto the corresponding position on the inner wall of the barrel body by the pre-pressing head of the film pre-pressing station. Finally, the film in the linearly moving barrel body is tightly pressed to the inner wall of the welding ear by the pre-pressing follow-up pressing head group. This makes the film application at the welding ear position quick and convenient, and the application is firm, ensuring the quality of the product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the process flow of the present invention. Detailed Implementation

[0017] A process for attaching a film to the inner wall of a barrel, see... Figure 1 It includes the following steps:

[0018] a. The barrel body completed in the previous process is sent into the stepping barrel conveyor belt 10. At this time, the line connecting the positions of the welding ears on both sides is perpendicular to the conveying direction of the stepping barrel conveyor belt 10.

[0019] b. A first baking mechanism 20 is provided on both sides of the starting position area of ​​the stepping barrel conveyor belt 10. The first baking mechanism 20 heats and bakes the height area of ​​the welding ears of the barrel body 30 to make the film adhere better.

[0020] c. The barrel 30 is conveyed to the cutting and film-applying station 40 by a stepping mechanism 41. The cutting and film-applying station 40 lifts the barrel and applies the cut contour film to the welding ear area on the inner wall of the barrel 30. The cutting and film-applying station 40 includes two processes: cutting and applying. In the cutting process, the strip with a width greater than the contour film is conveyed in rolls to the strip conveying mechanisms 42 on both sides. A suction cup 43 is set in the height direction. Then, the contour film is cut off by a cutter (not shown in the figure, arranged according to the site, facing the film to cut the material. After cutting, it retracts again without affecting the material collection and suction cup adsorption). The contour film is then adsorbed by the suction cup 43. In the applying process, the YZ drive module 44 drives the suction cup 43 to move radially inward first, then move downward in the height direction, and then move radially outward, so that the contour film on the suction cup is applied to the welding ear area on the inner wall of the barrel 30.

[0021] d. The barrel 30 is conveyed to the film pre-pressing station 50 by stepping. The pre-pressing head 51 of the film pre-pressing station 50 pre-presses the film onto the corresponding position on the inner wall of the barrel 30. In specific implementation, the film pre-pressing station 50 is equipped with a lifting module 52. After the lifting module 52 drives the pre-pressing head 51 to descend, the pre-pressing head completes the pressing action of the film toward the inner wall through the lateral convex action of the cam assembly.

[0022] The gripper of the stepping bucket conveyor belt 10 feeds the bucket into the continuous conveyor belt 60. A racetrack-shaped circulating belt 70 is set at the upper part of the continuous conveyor belt 60. Several pre-pressing follow-up attachment head assemblies 80 are evenly spaced on the racetrack-shaped circulating belt 70. For each bucket 30 entering the continuous conveyor belt 60, the corresponding pre-pressing follow-up attachment head assembly 80 extends into the bucket body, and the two sides of the pre-pressing follow-up attachment head 81 pre-press the corresponding position of the film to be applied, until the pre-pressing follow-up attachment head assembly 80 leaves the lower straight track area of ​​the racetrack-shaped circulating belt 70. The continuous conveyor belt 60 and the racetrack-shaped circulating belt 70 have the same conveying speed.

[0023] After the pressing is completed, the barrel 30 is separated from the continuous conveyor belt 60 and enters the subsequent process.

[0024] In specific implementation, in step e, a second baking mechanism 90 is provided on both sides of the continuous conveyor belt 30. The second baking mechanism 90 is located at the corresponding height position of the welding ear. The second baking mechanism 90 is arranged in a long strip shape and is continuously arranged along the length of the continuous conveyor belt. It fully heats the film application area of ​​the welding ear to ensure stable and reliable application.

[0025] In step e, the pressure heads 81 on both sides of the pre-pressure following pressure head assembly 80 in the upper straight line and the two side arc-shaped runways 70 of the racetrack-type circulation belt 70 retract radially towards the center, and the pre-pressure following pressure head assembly 80 is set inward towards the runway in the height direction towards the circulation belt 70, so as to ensure that it sequentially connects to the inner cavity of the corresponding barrel 30 in the initial state.

[0026] In practice, the pre-pressing head 51 of the film pre-pressing station 50 and the pressing head 81 of the pre-pressing following pressing head assembly 80 are both equipped with flexible pressing surfaces to ensure reliable and stable pressing without damaging the shape of the barrel.

[0027] Its working principle is as follows: the line connecting the positions of the welding ears on both sides of the pre-processed barrel body is perpendicular to the conveying direction of the stepping barrel conveyor belt and conveyed to the cutting and film-applying station. The film is conveyed in roll form to the corresponding film cutting positions of the welding ears on both sides. Then, under the drive of the two-dimensional linear drive module, the shaped film is applied to the corresponding position on the inner wall of the welding ear by the suction cup. Then, the pre-pressing head of the film pre-pressing station pre-presses the shaped film onto the corresponding position on the inner wall of the barrel body. Finally, the pre-pressing follow-up pressing head group tightly presses the film in the linearly moving barrel body to the inner wall of the welding ear. This makes the film application at the welding ear position quick and convenient, and the application is firm, ensuring the quality of the product.

[0028] 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.

[0029] 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 process for attaching a film to the inner wall of a barrel, characterized in that, It includes the following steps: a. The barrel body completed in the previous process is sent into the stepping barrel conveyor belt. At this time, the line connecting the positions of the welding ears on both sides is perpendicular to the conveying direction of the stepping barrel conveyor belt. b. A first baking mechanism is set at the starting position of the stepping conveyor belt to heat and bake the height area of ​​the welding lugs of the barrel, so that the film can adhere better. c. The barrel is conveyed to the cutting and film-applying station by a stepping mechanism. The upper lifting mechanism of the cutting and film-applying station lifts the barrel, and the cutting and film-applying station applies the cut contour film to the welding lug area on the inner wall of the barrel. d. The barrel is conveyed to the film pre-pressing station by stepping, and the pre-pressing head of the film pre-pressing station pre-presses the film onto the corresponding position on the inner wall of the barrel; The gripper of the e-stepping bucket conveyor belt feeds the bucket into the continuous conveyor belt. A racetrack-shaped circulating belt is set at the upper part of the continuous conveyor belt. Several pre-pressing and following attachment head assemblies are evenly spaced on the racetrack-shaped circulating belt. For each bucket entering the continuous conveyor belt, the corresponding pre-pressing and following attachment head assembly extends into the bucket body, and the two sides of the pre-pressing and following attachment head pre-press the corresponding position of the film to be attached, until the pre-pressing and following attachment head assembly leaves the lower straight track area of ​​the racetrack-shaped circulating belt. The continuous conveyor belt and the racetrack-shaped circulating belt have the same conveying speed. After the pressing is completed, the barrel is removed from the continuous conveyor belt and enters the next process. In step e, a second baking mechanism is provided on both sides of the continuous conveyor belt. The second baking mechanism is located at the corresponding height position of the welding ear. The second baking mechanism is arranged in a long strip shape and is continuously arranged along the length of the continuous conveyor belt. It fully heats the film application area of ​​the welding ear to ensure stable and reliable application. The cutting and film-applying station includes two processes: cutting and applying. In the cutting process, a strip of material wider than the conformal film is rolled up and conveyed to the material conveying mechanisms on both sides. A suction cup is set in the height direction, and then the conformal film is cut off by the cutter and held by the suction cup. In the applying process, the YZ drive module drives the suction cup to move radially inward first, then move downward in the height direction, and then move radially outward, so that the conformal film on the suction cup is applied to the welding ear area of ​​the inner wall of the barrel. In step e, the pre-pressure following pressure head assembly on both sides of the upper straight line and the two curved tracks of the racetrack-type circulation belt retracts radially towards the center, and the pre-pressure following pressure head assembly is set inward toward the racetrack in the height direction of the circulation belt, ensuring that the corresponding barrels are sequentially connected in the initial state.

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