A corrugated iron sheet anti-scratch feeding device for a metal coating machine and a metal coating machine

Abstract

This utility model provides a corrugated iron sheet anti-scratch feeding device for a metal coating machine and a metal coating machine, including a feeder device. The feeder device is equipped with an iron sheet positioning frame, a dispensing nozzle, and a feeding nozzle. The iron sheet positioning frame can hold stacked corrugated iron sheets. It also includes an anti-scratch mechanism, which includes a connecting component and a suction component. The connecting component is installed on the iron sheet positioning frame and extends above the material pile with a connecting part. The connecting part connects to the suction component, which picks up the corrugated portion on the side of the corrugated iron sheet. By fixing the connecting component to the iron sheet positioning frame, the suction component can accurately extend above the material pile and pick up the corrugated portion on the side of the corrugated iron sheet, preventing the corrugated portion on both sides from drooping due to gravity and contacting the next iron sheet after the iron sheet is picked up. This fundamentally solves the problem of burrs at the corrugated part scratching the next iron sheet and ensures the printing quality of the iron sheet surface.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a corrugated iron sheet anti-scratch feeding device for a metal coating machine and a metal coating machine. Background Technology

[0002] When making empty cans, a metal coating machine is used to print patterns on the surface of the metal sheets. Both domestic and imported metal coating machines employ automatic feeding systems. These automatic feeding systems consist of a lifting mechanism, a positioning mechanism, and a sheet-feeding mechanism. Their function is to accurately deliver the metal sheets from the feeding platform to the positioning mechanism after the stacked metal material is fed onto the platform and raised to a set height. Then, a magnet separates the metal sheets, and air pressure separates each sheet from the stack. A suction nozzle picks up the sheet, and under the action of a feeding cam, the sheet is conveyed between the feeding roller and the pressure roller. The entire process involves the sheet-feeding mechanism simultaneously distributing air to the nozzles, and the feeding action is completed by the sheet-feeding nozzle, the feeding nozzle, and the engaging cam mechanism.

[0003] Existing automatic feeding systems are typically used for separating iron sheets with regular edges, such as square or rectangular sheets. During the cutting process, the edges are relatively neat and burrs are not easily generated. Even if burrs are present, they are located at the corners of the edges. Therefore, during the separation and conveying process, burrs are less likely to scratch the surface of the next iron sheet. However, if used for separating iron sheets with wavy sides, burrs are easily generated at the corners because the iron sheet is cut into many segments during processing. Furthermore, the suction nozzle only picks up the iron sheet from the middle of both sides. After the iron sheet is picked up, its sides droop due to its own weight. When it moves, the wavy part will come into contact with the surface of the next iron sheet. During the dragging process, the burrs at the wavy part will scratch or abrade the surface of the next sheet, which seriously affects the printing effect, as shown in the patent document with publication number CN219688797U. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a corrugated iron sheet anti-scratch feeding device for a metal coating machine and a metal coating machine.

[0005] This utility model is achieved by the following method: a corrugated iron sheet anti-scratch feeding device for a metal coating machine, including a feeder device, the feeder device is provided with an iron sheet positioning frame, a dispensing suction nozzle and a feeding suction nozzle, the iron sheet positioning frame can hold stacked corrugated iron sheet material piles, and also includes an anti-scratch mechanism, the anti-scratch mechanism includes a connecting component and a suction component, the connecting component is installed on the iron sheet positioning frame, the connecting component extends to the top of the material pile and is provided with a connecting part, the connecting part is connected to the suction component, the suction component sucks up the corrugated part on the side of the corrugated iron sheet.

[0006] Preferably, the suction assembly includes a mounting bracket and a suction element, the mounting bracket being connected to the connecting portion, and the suction element being installed within the mounting bracket.

[0007] Preferably, the mounting frame has multiple mounting cavities, which are arranged along the moving direction of the iron sheet, and the attracting element is a magnet, which is installed in the mounting cavity.

[0008] Preferably, the mounting frame includes a lower frame and an upper frame, and a telescopic damping member is connected between the lower frame and the upper frame to enable the lower frame to rise and fall relative to the upper frame. The upper frame is fixedly connected to the connecting part, and the suction member is installed in the lower frame.

[0009] Preferably, the telescopic damping component includes a guide shaft and a return spring. The upper frame has a longitudinal guide hole, the guide shaft passes through the guide hole, the lower end of the guide shaft is fixedly connected to the lower frame, a return spring is sleeved on the outer circumferential surface of the guide shaft between the lower frame and the upper frame, the upper end of the guide shaft has a limiting part, and a return spring is sleeved on the outer circumferential surface of the guide shaft between the limiting part and the upper surface of the upper frame.

[0010] Preferably, the mounting frame is also equipped with a plurality of rollers, which are spaced apart along the moving direction of the iron sheet, and the lowermost end of the circumference of the rollers protrudes from the lower end surface of the mounting frame; the included angle of the lower side of the mounting frame at both ends of the moving direction of the iron sheet does not protrude from the rollers at the corresponding positions.

[0011] Preferably, the connecting assembly includes a connecting seat and a mounting seat. The mounting seat is installed on the side of the iron plate positioning frame, the connecting seat is liftable and height-mounted on the mounting seat, and the connecting part is provided on the connecting seat.

[0012] Preferably, the connecting seat is provided with a sliding groove, the sliding groove is fitted onto the outer surface of the mounting seat, and a locking member is provided on the side of the connecting seat opposite to the sliding groove, the locking member abutting against the side of the mounting seat.

[0013] Preferably, both the dispensing nozzle and the feeding nozzle are mounted on the swing shaft of the feeder device.

[0014] A metal coating machine is provided with a corrugated iron sheet anti-scratch feeding device as described in any of the above-mentioned items.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a corrugated iron sheet anti-scratch feeding device and a metal coating machine. Compared with the prior art, this utility model has at least the following technical effects: 1. By fixing the connecting component to the iron sheet positioning frame, the attraction component can accurately extend to the top of the material pile and pick up the corrugated part on the side of the corrugated iron sheet. This avoids the corrugated part on both sides of the iron sheet from drooping due to gravity and contacting the next iron sheet after the iron sheet is picked up, fundamentally solving the problem of burrs at the corrugated part scratching the next iron sheet and ensuring the printing quality of the iron sheet surface. 2. The combination structure of multiple mounting cavities and magnets can form a continuous attraction area along the iron sheet's moving path, ensuring that the corrugated part of the iron sheet is always stably attracted during the entire movement process, avoiding local drooping caused by single-point attraction, and further improving the stability of the anti-scratch effect. 3. The telescopic damping component absorbs the impact on the anti-scratch mechanism when the suction nozzle draws in the metal sheet, providing cushioning and shock absorption. This prevents hard contact between the metal sheet and the anti-scratch mechanism, extending its lifespan and preventing deformation due to pressure, ensuring a smooth surface during subsequent printing. 4. Rollers assist in conveying the metal sheet during movement, reducing friction between the sheet and the mounting frame and preventing scratches. The design of the mounting frame's lower edges not protruding from the rollers further prevents direct contact between the frame's corners and the metal sheet, minimizing the risk of scratches. 5. The adjustable connecting component allows for flexible adjustment of the suction component's height based on the thickness and height of the corrugated metal sheet, ensuring optimal suction of the corrugated portion and enhancing the equipment's versatility for different sizes of corrugated metal sheets. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a corrugated iron sheet anti-scratch feeding device for a metal coating machine according to this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of a corrugated iron sheet anti-scratch feeding device for a metal coating machine according to this utility model.

[0018] Figure 3 This is a schematic diagram of the attraction component of this utility model.

[0019] Figure 4 This is a schematic diagram of a corrugated iron sheet structure.

[0020] The following are the reference numerals: 1. Iron sheet positioning frame; 2. Dispensing suction nozzle; 3. Feeding suction nozzle; 4. Suction assembly; 41. Mounting frame; 411. Upper frame; 412. Lower frame; 42. Suction component; 43. Telescopic damping component; 431. Guide shaft; 432. Return spring; 44. Roller; 5. Connecting assembly; 51. Connecting seat; 52. Mounting seat; 53. Locking component; 54. Connecting part; 6. Magnetic suction auxiliary mechanism; 7. Air blowing separation mechanism; 8. Corrugated iron sheet; 9. Swing shaft. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 1 to 4 A corrugated iron sheet anti-scratch feeding device for a metal coating machine includes a feeder device. The feeder device has an iron sheet positioning frame 1, a dispensing suction nozzle 2, and a feeding suction nozzle 3. The iron sheet positioning frame 1 can hold stacked corrugated iron sheets 8. It also includes an anti-scratch mechanism, which includes a connecting component 5 and a suction component 4. The connecting component 5 is mounted on the iron sheet positioning frame 1 and extends above the material stack with a connecting part 54. The connecting part 54 connects to the suction component 4, which picks up the corrugated portion of the side of the corrugated iron sheet 8. By fixing the connecting component 5 to the iron sheet positioning frame 1, the suction component 4 precisely extends above the material stack and picks up the corrugated portion of the side of the corrugated iron sheet 8, preventing the corrugated portion on both sides from drooping due to gravity and contacting the next iron sheet after the sheet is picked up. This fundamentally solves the problem of burrs at the corrugated portion scratching the next iron sheet, ensuring the printing quality of the iron sheet surface. The feeder device is existing equipment and will not be described in detail, nor will specific protection requirements be specified.

[0023] Please see Figures 1 to 3 Preferably, the attraction component 4 includes a mounting frame 41 and an attraction element 42. The mounting frame 41 is connected to the connecting part 54, and the attraction element 42 is installed inside the mounting frame 41. The mounting frame 41 provides a stable mounting carrier for the attraction element 42, ensuring that the position of the attraction element 42 is fixed, while facilitating the disassembly and maintenance of the attraction element 42. In practical applications, the mounting frame 41 can be manufactured using an integral molding process or a splicing process. When the attraction element 42 needs to be replaced (e.g., the magnet's magnetism weakens), the attraction element 42 can be removed by directly removing the cover plate on the mounting frame 41.

[0024] Please see Figures 1 to 3Preferably, the mounting frame 41 has multiple mounting cavities arranged along the moving direction of the iron sheet. The attracting element 42 is a magnet, which is installed in the mounting cavity. This combination of multiple mounting cavities and magnets creates a continuous attractive force area along the moving path of the iron sheet, ensuring that the wavy portion of the corrugated iron sheet 8 is consistently attracted throughout the entire movement process, avoiding localized sagging due to single-point attraction, and further improving the stability of the anti-scratch effect. The attracting element 42 can be a vacuum nozzle, etc., with multiple attraction holes on the lower surface of the mounting frame 41 to attract the iron sheet when air is drawn in. The magnet can be a neodymium iron boron magnet or a ferrite magnet. Neodymium iron boron magnets are suitable for thicker corrugated iron sheets 8, while ferrite magnets are suitable for thinner corrugated iron sheets 8, balancing the attractive force and the cost of use.

[0025] Please see Figures 1 to 3 Preferably, the mounting frame 41 includes a lower frame 412 and an upper frame 411. A telescopic damping member 43 connects the lower frame 412 and the upper frame 411, allowing the lower frame 412 to rise and fall relative to the upper frame 411. The upper frame 411 is fixedly connected to the connecting part 54, and the suction member 42 is installed in the lower frame 412. The telescopic damping member 43 absorbs the impact on the anti-scratch mechanism when the suction nozzle sucks in the iron sheet, playing a buffering and shock-absorbing role, avoiding hard contact between the iron sheet and the anti-scratch mechanism. This can improve the life of the anti-scratch mechanism and also prevent the iron sheet from being squeezed and deformed by hard contact with the anti-scratch mechanism, ensuring a smooth surface during subsequent printing. The top of the upper frame 411 is provided with a connecting hole, which is fitted onto the connecting part 54. The side wall of the connecting hole has an opening, and a locking member passes through the side wall. The locking member can clamp the connecting part 54 and can adjust the relative position of the upper frame 411 and the connecting part 54 by a certain lateral distance to adjust the position of the suction component 4.

[0026] Please see Figures 1 to 3 Preferably, the telescopic damping component 43 includes a guide shaft 431 and a return spring 432. A longitudinal guide hole is provided in the upper frame 411, and the guide shaft 431 passes through the guide hole. The lower end of the guide shaft 431 is fixedly connected to the lower frame 412. A return spring 432 is sleeved on the outer circumferential surface of the guide shaft 431 between the lower frame 412 and the upper frame 411. A limiting part is provided at the upper end of the guide shaft 431, and a return spring 432 is sleeved on the outer circumferential surface of the guide shaft 431 between the limiting part and the upper surface of the upper frame 411. Through the design of double return springs 432, the smooth lifting and automatic reset of the lower frame 412 is achieved. Simultaneously, the cooperation between the guide shaft 431 and the guide hole ensures that the lower frame 412 does not deviate during lifting, guaranteeing the accurate positioning of the suction component 42.

[0027] Please see Figures 1 to 3Preferably, the mounting frame 41 is also equipped with a plurality of rollers 44, which are spaced apart along the moving direction of the iron sheet. The lowermost end of the circumference of each roller 44 protrudes from the lower end surface of the mounting frame 41. The included angles on the lower sides of the mounting frame 41 at both ends in the moving direction of the iron sheet do not protrude from the corresponding rollers 44. When the iron sheet moves, the rollers 44 assist in the conveying of the iron sheet, reducing friction between the iron sheet and the mounting frame 41 and preventing the mounting frame 41 from scratching the surface of the iron sheet. At the same time, the design that the included angles on the lower sides of the mounting frame 41 do not protrude from the rollers 44 prevents the edges of the mounting frame 41 from directly contacting the iron sheet, further avoiding the risk of scratches.

[0028] Please see Figure 1 Preferably, the connecting component 5 includes a connecting seat 51 and a mounting seat 52. The mounting seat 52 is installed on the side of the iron sheet positioning frame 1, and the connecting seat 51 can be lifted and lowered on the mounting seat 52. The connecting part 54 is provided on the connecting seat 51. The liftable connecting component 5 can flexibly adjust the height position of the attraction component 4 according to the thickness, wave height, and other specifications of the corrugated iron sheet 8, ensuring that the attraction component 4 has the best suction effect on the corrugated part and improving the versatility of the equipment for corrugated iron sheets of different specifications.

[0029] Please see Figure 1 Preferably, the connecting seat 51 has a sliding groove that passes through the outer surface of the mounting seat 52. A locking member 53 passes through the side of the connecting seat 51 opposite to the sliding groove, and the locking member 53 abuts against the side of the mounting seat 52. The locking member 53 quickly fixes the lifting position of the connecting seat 51, preventing accidental sliding of the connecting seat 51 during equipment operation and ensuring the stability of the suction component 4. In practical applications, the locking member 53 can be a hand-tightened bolt or a wing bolt, allowing locking and unlocking to be completed without tools, improving operational convenience. The side of the mounting seat 52 that contacts the sliding groove can be provided with anti-slip texture to increase the friction with the locking member 53 and further improve locking stability.

[0030] Please see Figure 1 Preferably, both the dispensing suction nozzle 2 and the feeding suction nozzle 3 are mounted on the swing shaft 9 of the feeder device. In existing equipment, the feeding suction nozzle 3 is swingable, while the dispensing suction nozzle 2, like the magnetic suction auxiliary mechanism 6 and the air-blowing separation mechanism 7, is fixed to the iron sheet positioning frame 1. Now, the dispensing suction nozzle 2 is installed in the same way as the feeding suction nozzle 3. The dispensing suction nozzle 2 is passive and does not actively swing, allowing it to swing synchronously with the feeding suction nozzle 3. This allows them to transport the iron sheet together for a certain distance, for example, bringing the tail end of the iron sheet from its initial position to the tail end of the anti-scratch mechanism, thus avoiding a brief reaction force that blocks the iron sheet's forward movement when the dispensing suction nozzle 2 sucks onto it.

[0031] A metal coating machine is provided with a corrugated iron sheet anti-scratch feeding device as described in any of the above-mentioned items.

[0032] The working principle of this utility model is as follows: The stacked corrugated iron sheet 8 is placed into the iron sheet positioning frame 1, and the stack is lifted to a set height by the lifting mechanism of the feeder device. At this time, the distance between the corrugated iron sheet 8 at the top of the stack and the attraction component 4 is within the effective attraction range of the magnet.

[0033] Sheet separation and anti-scratch coordination: After the feeder device is started, the air-blowing separation mechanism 7 blows air between the material pile and the iron sheet. The magnetic suction auxiliary mechanism 6 and the material separation nozzle 2 work together to separate the iron sheet. Then, the feeding nozzle 3 and the material separation nozzle 2 simultaneously lift the iron sheet. After being lifted, the distance between the iron sheet and the attraction component 4 is reduced. The attraction force of the attraction component 4 can overcome gravity and lift the iron sheet. The magnet in the attraction component 4 lifts the wavy part on the side of the iron sheet, keeping the wavy part in an upward state to prevent it from drooping and contacting the next iron sheet. The telescopic damping component 43 between the upper frame 411 and the lower frame 412 absorbs the impact of the iron sheet on the anti-scratch mechanism at the moment of contact with the nozzle, playing a buffering and shock-absorbing role, avoiding hard contact between the iron sheet and the anti-scratch mechanism. On the one hand, it can improve the life of the anti-scratch mechanism, and on the other hand, it can also avoid the iron sheet from being squeezed and deformed by hard contact with the anti-scratch mechanism, ensuring that its surface is flat during subsequent printing.

[0034] The separating suction nozzle 2 and the feeding suction nozzle 3 move forward under the drive of the cam mechanism to convey the separated iron sheet. During this process, the roller 44 on the mounting frame 41 contacts and rolls with the surface of the iron sheet to assist the movement of the iron sheet and reduce friction.

[0035] Cyclic operation: After a single sheet of iron is conveyed between the feeding roller and the pressure roller, the material dispensing nozzle 2 and the feeding nozzle 3 are reset under the drive of the swing shaft 9, ready to pick up the next sheet of iron. The above dispensing, anti-scratch, and feeding process is repeated to achieve continuous and scratch-free feeding of wavy iron sheets.

[0036] Throughout the entire process, the anti-scratch mechanism and the feeder device work together precisely in the splitting and feeding actions. The attraction component 4 actively controls the position of the wavy part, and the roller 44 assists in conveying, which completely solves the problem of wavy iron sheets being easily scratched in the traditional feeding method. At the same time, the adjustable structure adapts to iron sheets of different specifications, improving the practicality and reliability of the equipment.

[0037] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0039] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0040] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A metal coater corrugated iron sheet anti-scratching feeding device, comprising a flying device, the flying device is provided with an iron sheet positioning frame, a distribution suction nozzle and a feeding suction nozzle, a stack of corrugated iron sheet material stacks can be placed in the iron sheet positioning frame, characterized in that: It also includes an anti-scratch mechanism, which includes a connecting component and an attraction component. The connecting component is mounted on the iron sheet positioning frame and extends to the top of the material pile with a connecting part. The connecting part connects to the attraction component, which sucks up the wavy part on the side of the wavy iron sheet.

2. A metal-coating machine corrugated iron sheet scratch-preventing feeding apparatus according to claim 1, characterized in that: The suction assembly includes a mounting bracket and a suction element. The mounting bracket is connected to the connecting portion, and the suction element is installed inside the mounting bracket.

3. A metal-coating machine corrugated iron sheet scratch-preventing feeding apparatus according to claim 2, characterized in that: The mounting frame has multiple mounting cavities, which are arranged along the moving direction of the iron sheet. The attracting element is a magnet, which is installed in the mounting cavity.

4. The metal-coating machine corrugated iron sheet scratch-preventing feeding apparatus according to claim 2, characterized in that: The mounting frame includes a lower frame and an upper frame, and a telescopic damping element is connected between the lower frame and the upper frame to enable the lower frame to rise and fall relative to the upper frame. The upper frame is fixedly connected to the connecting part, and the suction element is installed in the lower frame.

5. A metal-coating machine corrugated iron sheet scratch-preventing feeding apparatus according to claim 4, characterized in that: The telescopic damping component includes a guide shaft and a return spring. The upper frame has a longitudinal guide hole, and the guide shaft passes through the guide hole. The lower end of the guide shaft is fixedly connected to the lower frame. A return spring is sleeved on the outer circumferential surface of the guide shaft between the lower frame and the upper frame. The upper end of the guide shaft has a limiting part, and a return spring is sleeved on the outer circumferential surface of the guide shaft between the limiting part and the upper surface of the upper frame.

6. A metal-coating machine corrugated iron sheet scratch-preventing feeding apparatus according to claim 2, characterized in that: The mounting frame is also equipped with multiple rollers, which are spaced apart along the moving direction of the iron sheet. The lowest point of the circumference of each roller protrudes from the lower end surface of the mounting frame. The included angle of the lower side of the mounting frame at both ends of the moving direction of the iron sheet does not protrude from the corresponding roller.

7. The anti-scratch feeding device for corrugated iron sheets in a metal coating machine according to claim 1, characterized in that: The connecting assembly includes a connecting seat and a mounting seat. The mounting seat is installed on the side of the iron plate positioning frame. The connecting seat can be lifted and lowered on the mounting seat. The connecting part is provided on the connecting seat.

8. A metal-coating machine wavy iron sheet scratch-preventing feeding apparatus according to claim 7, characterized in that: The connecting seat is provided with a sliding groove, which is fitted onto the outer surface of the mounting seat. A locking member is provided on the side of the connecting seat opposite to the sliding groove, and the locking member abuts against the side of the mounting seat.

9. The metal-coating machine wavy iron sheet scratch-preventing feeding apparatus according to claim 1, characterized in that: Both the dispensing nozzle and the feeding nozzle are mounted on the swing shaft of the feeder device.

10. A metal coater characterized by comprising: The invention comprises a corrugated iron sheet anti-scratch feeding device for a metal coating machine as described in any one of claims 1-9.

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