High-compatibility laser code spraying device

Abstract

The utility model discloses a high-compatibility laser code spraying device which comprises a conveying belt, the conveying belt takes the material source direction as the upstream and the material moving direction as the downstream, and a material posture adjusting mechanism and a laser marking mechanism are arranged on the conveying belt from the upstream to the downstream. The laser marking mechanism is used for printing patterns on the surfaces of the materials; the material posture adjusting mechanism comprises a leveling adjusting assembly, the leveling adjusting assembly comprises a roller rotationally arranged above the conveying belt, the rotating axis of the roller is parallel to the horizontal plane, a certain included angle is formed between the rotating axis of the roller and the conveying direction of the conveying belt, the included angle is larger than 0 degree and smaller than 90 degrees, and the side, facing materials, of the roller rotates from bottom to top. When the medicine bottles and the packaging boxes are placed on the conveying belt, if the medicine bottles and the packaging boxes are in a vertical state, the medicine bottles and the packaging boxes can meet the rollers and collide with the rollers in the moving process of the conveying belt, materials are subjected to force from the upper portion to the rear side and force from the bottom to the front side at the same time, and the materials turn on one side, are flatly placed and upwards expose the side faces needing to be marked.

Description

Technical Field

[0001] This utility model relates to printing equipment, specifically to a highly compatible laser marking device. Background Technology

[0002] Laser marking machines use a laser beam to create permanent marks on the surfaces of various materials. The marking effect is achieved by evaporating the surface material to expose the deeper material, thus engraving intricate patterns, trademarks, and text.

[0003] On an assembly line, when a laser marking machine marks each product individually, if the products are placed at different angles or positions, the markings will be applied in different positions and directions, resulting in uneven markings and inconsistent positions and angles within the same batch. An existing patent (202020669278.9) discloses a CCD vision-positioning laser marking machine, which uses vision positioning to mark scattered parts. However, when materials entering the assembly line, such as cartons and bottles, are in a vertical position, the laser marking machine cannot illuminate the side that should be marked, thus preventing the marking operation.

[0004] Therefore, a highly compatible laser marking device is needed that can mark products in various postures, positions, and directions. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a highly compatible laser marking device that can perform marking operations normally in various postures, positions and directions of products.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A highly compatible laser marking device includes a conveyor belt with the material source direction as upstream and the material movement direction as downstream. The conveyor belt is provided with a material posture adjustment mechanism and a laser marking mechanism from upstream to downstream.

[0008] The laser marking mechanism is used to print patterns on the surface of materials;

[0009] The material posture adjustment mechanism includes a leveling adjustment component, which includes a roller rotatably mounted above the conveyor belt. The rotation axis of the roller is parallel to the horizontal plane, and the rotation axis of the roller is set at a certain angle with the conveying direction of the conveyor belt. The angle is greater than 0° and less than 90°. The roller rotates from bottom to top towards the side facing the material.

[0010] Specifically, the distance between the roller and the conveyor belt is less than the height of the material being processed when it is upright, but greater than the height of the material being processed when it is laid flat. Taking a medicine bottle as an example, this distance is less than the height of the medicine bottle when it is upright, but greater than the height of the medicine bottle when it is tilted down. Taking a medicine box as an example, when the length of the medicine box > the width > the thickness, this distance should be less than the length and width of the medicine box, but greater than the thickness of the medicine box.

[0011] By adopting the above technical solution, taking materials such as packaging boxes and medicine bottles as examples, if the medicine bottles and packaging boxes are placed vertically on the conveyor belt, they will encounter and collide with the rollers during the conveyor belt's movement. The collision point is located at the side front of the material, causing the material to be simultaneously subjected to a force from above to the side rear and a force from below to the front, causing the material to tip over and lie flat, thus exposing the side of the medicine bottle or packaging box that needs to be marked. In addition, the rollers rotating from bottom to top towards the material also enhance the lateral thrust on the material, strengthening the tipping effect.

[0012] As an improvement, the roller is provided with a number of blades, which are arranged symmetrically on the outer surface of the roller with respect to the roller's axis of rotation.

[0013] By adopting the above technical solution, the roller rotates from bottom to top towards the material, so that the blades produce a bottom-up pushing / pushing effect on the front side of the material, making it easier for the material to tip over.

[0014] As an improvement, the blades are spirally arranged along the rotation axis of the roller, and the downstream end of the blades leads the upstream end of the blades along the rotation direction of the roller.

[0015] More specifically, the blades are provided with an upstream end and a downstream end in sequence along the conveying path of the conveyor belt; the blades are spirally arranged along the rotation axis of the drum, and when the blades rotate along the drum, the downstream end is located at the front end in the rotation direction and the upstream end is located at the rear end in the rotation direction.

[0016] By adopting the above technical solution, the blades are spirally arranged along the rotation axis of the drum, so that when the drum rotates, the blades push the material to the side and overturn from bottom to top and from front to back. This force direction makes it easier for the material to overturn and tip over.

[0017] As an improvement, the leveling adjustment assembly further includes an auxiliary conveyor belt that matches the position of the roller. The upper surface of the auxiliary conveyor belt is provided with auxiliary protrusions. The auxiliary protrusions protrude upward from the upper surface of the auxiliary conveyor belt, and the auxiliary protrusions are strip-shaped and their direction is perpendicular to the material movement direction.

[0018] By adopting the above technical solution, compared with a flat conveyor belt, the auxiliary protrusions that are raised upwards in strip shape can exert a greater force on the bottom of the material when moving forward, and can work with the rollers to make the material easier to tip over.

[0019] As an improvement, the material posture adjustment mechanism further includes a direction adjustment component, which is located downstream of the leveling adjustment component. The direction adjustment component includes a first side baffle and a deflector plate. The first side baffle is vertically disposed on one side of the conveyor belt, and the direction of the first side baffle is parallel to the moving direction of the conveyor belt. The deflector plate is disposed above the conveyor belt, and the deflector plate is disposed opposite to the first side baffle. The distance between the deflector plate and the first side baffle gradually decreases along the moving direction of the conveyor belt.

[0020] By adopting the above technical solution, the direction adjustment component located downstream of the leveling adjustment component uses the deflector plate and the first side baffle to adjust the material, after being leveled, to move forward in the same direction due to the narrowing of the lateral distance. Taking a medicine box as an example, when a medicine box in a leveled state passes through the direction adjustment component with its length perpendicular to the direction of the conveyor belt, the distance between the deflector plate and the first side baffle gradually decreases to less than the length of the medicine box, forcing the medicine box to turn so that its length is in the same direction as the direction of the conveyor belt, thus passing through the direction adjustment component.

[0021] As an improvement, the direction adjustment assembly further includes a second side baffle, which is vertically disposed on one side of the conveyor belt, and the first side baffle is disposed opposite to the second side baffle; the upstream end of the deflector plate is hinged to the second side baffle, and an adjusting rod is movably disposed downstream of the second side baffle, one end of the adjusting rod protruding from the second side baffle and abutting against the deflector plate.

[0022] Specifically, the adjusting rod has external threads on its side, and the second side baffle has a through hole with internal threads. The adjusting rod and the second side baffle are connected by a threaded fit. When the adjusting rod rotates, it can simultaneously adjust the distance of its protrusion from the second side baffle. Since the end of the adjusting rod abuts against the steering plate, the posture of the steering plate can be adjusted, and the minimum distance between the steering plate and the first side baffle can be adjusted.

[0023] By adopting the above technical solution, the minimum distance between the deflector plate and the first side baffle can be changed by altering the relative position between the adjusting rod and the adjusting groove, thereby enabling the direction adjustment assembly to adapt to materials of different sizes.

[0024] As an improvement, the laser marking mechanism includes a vision detector and a laser marking component arranged sequentially from upstream to downstream. The vision detector is used to detect the position and orientation of the material, and the laser marking component is signal-connected to the vision detector. The laser marking component marks the material with laser inkjet printing based on the position and orientation data of the material.

[0025] As an improvement, the laser marking mechanism further includes a frame on which a display is mounted, and the display is connected to the laser marking component and the vision detector for signal transmission.

[0026] By adopting the above technical solution, staff can observe the detection results of the visual detector and the marking effect of the laser marking device through the monitor.

[0027] As an improvement, the laser marking assembly includes an ultraviolet laser generator and a mounting bracket. The mounting bracket includes a column mounted on a frame and a crossbeam vertically and movably mounted on the column. The ultraviolet laser generator is mounted on the crossbeam and faces the conveyor belt downwards.

[0028] By adopting the above technical solution, an ultraviolet laser generator is used to output laser light, resulting in high electro-optical conversion efficiency, compact size, and good beam quality. It is environmentally friendly, requires no frequent replacement of consumables, has low energy consumption, and is easy to maintain. It is particularly suitable for marking on aluminum foil bags and plastic products.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] When materials like medicine bottles and packaging boxes are placed vertically on the conveyor belt, they will encounter and collide with the rollers during the conveyor's movement. The collision occurs at the front side of the material, subjecting it to both a force from above towards the rear and a force from below towards the front. This causes the material to tip over and lie flat, exposing the side of the medicine bottle or packaging box that needs marking. Furthermore, the rollers rotating upwards towards the material also amplify the lateral thrust on the material, enhancing the tipping effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a highly compatible laser marking device according to this utility model.

[0032] Figure 2 This is a structural diagram of the leveling and adjustment component area of ​​a highly compatible laser marking device according to this utility model.

[0033] Figure 3 This is a structural diagram of the direction adjustment component area of ​​a highly compatible laser marking device according to this utility model.

[0034] Figure 4 This is a structural diagram of the laser marking mechanism area of ​​a highly compatible laser marking device according to this utility model.

[0035] Among them, 1: conveyor belt; 2: material; 3: laser marking mechanism; 4: leveling adjustment component; 5: direction adjustment component; 6: roller; 7: blade; 71: upstream end of blade; 72: downstream end of blade; 8: auxiliary conveyor belt; 9: auxiliary protrusion; 10: first side baffle; 11: second side baffle; 12: deflector plate; 13: vision detector; 14: display; 15: ultraviolet laser generator; 16: column; 17: crossbeam; 18: adjustment rod. Detailed Implementation

[0036] The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0037] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0038] It should be noted that when a component / part is referred to as being "set on" another component / part, it can be directly set on the other component / part or there may be an intervening component / part. When a component / part is referred to as being "connected / linked" to another component / part, it can be directly connected / linked to the other component / part or there may be an intervening component / part. The term "connected / linked" as used herein can include electrical and / or mechanical physical connections / links. The term "including / comprises" as used herein means the presence of a feature, step, or component / part, but does not exclude the presence or addition of one or more other features, steps, or components / parts. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. Furthermore, in the description of this application, the terms "first," "second," etc., are used for descriptive purposes and to distinguish similar objects only; there is no order between them, nor should they be construed as indicating or implying relative importance. Additionally, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0040] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0041] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0042] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0043] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0044] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0045] Implementation Case 1:

[0046] As attached Figure 1-4 As shown, a highly compatible laser marking device includes a conveyor belt 1, with the material 2 source direction as upstream and the material 2 movement direction as downstream. The conveyor belt 1 is provided with a material posture adjustment mechanism and a laser marking mechanism 3 from upstream to downstream.

[0047] The laser marking mechanism 3 is used to print patterns on the surface of the material 2;

[0048] The material posture adjustment mechanism includes a leveling adjustment component 4, which includes a roller 6 rotatably mounted above the conveyor belt 1. The rotation axis of the roller 6 is parallel to the horizontal plane, and the rotation axis of the roller 6 forms a certain angle with the conveying direction of the conveyor belt 1. This angle is greater than 0° and less than 90°, with the most preferred angle being 45°±5°. The roller 6 rotates from bottom to top towards the material 2.

[0049] The distance between the roller 6 and the conveyor belt 1, taking the material 2 as a rectangular paper box as an example, is such that the length > width > thickness of the medicine box of material 2. This distance should be less than the length and width of the medicine box and greater than the thickness of the medicine box.

[0050] If the packaging box is placed vertically on conveyor belt 1, it will encounter and collide with roller 6 during the movement of conveyor belt 1. The collision point is located in front of the side of the material 2, causing the material 2 to be subjected to both an upward force from above and a downward force from below, causing the material 2 to tip over and lie flat, thus exposing the side of the medicine bottle and packaging box that needs to be marked. In addition, the roller 6 rotates from bottom to top towards the side of the material 2, which can also increase the lateral thrust on the material 2 and enhance the tipping effect.

[0051] The roller 6 is provided with a plurality of blades 7, which are arranged symmetrically on the outer surface of the roller 6 with the axis of rotation of the roller 6 as a reference.

[0052] The roller 6 rotates from bottom to top towards the material 2, causing the blades 7 to push / push the material 2 from bottom to top. This causes the material 2 to be subjected to a first vertical force from bottom to top with the front side as the force point, making it easy to tip over backward; a second force from front to back with the upper front as the force point, making it easy to tip over backward; and a third force from the upper side away from the roller 6, making it easy to tip over to the side away from the roller 6.

[0053] The blade 7 is spirally arranged along the rotation axis of the roller 6, and the downstream end 72 of the blade leads the upstream end 71 of the blade along the rotation direction of the roller 6.

[0054] The blades 7 are spirally arranged along the rotation axis of the drum 6, so that when the drum 6 rotates, the blades 7 push the material 2 to the side to overturn from bottom to top and from front to back. This direction of force makes it easier for the material 2 to overturn and tip over.

[0055] The leveling and adjusting assembly 4 also includes an auxiliary conveyor belt 8 that matches the position of the roller 6. The upper surface of the auxiliary conveyor belt 8 is provided with an auxiliary protrusion 9. The auxiliary protrusion 9 protrudes upward from the upper surface of the auxiliary conveyor belt 8. The auxiliary protrusion 9 is strip-shaped and its direction is perpendicular to the moving direction of the material 2.

[0056] Compared to a flat conveyor belt, the auxiliary protrusion 9, which is raised upward in a strip shape, can exert a greater force on the bottom of the material 2 when moving forward, and can work with the roller 6 to make the material 2 more likely to tip over.

[0057] The material posture adjustment mechanism further includes a direction adjustment component 5, which is located downstream of the leveling adjustment component 4. The direction adjustment component 5 includes a first side baffle 10 and a deflector plate 12. The first side baffle 10 is vertically arranged on one side of the conveyor belt 1, and the direction of the first side baffle 10 is parallel to the moving direction of the conveyor belt 1. The deflector plate 12 is arranged above the conveyor belt 1, and the deflector plate 12 is arranged opposite to the first side baffle 10. The distance between the deflector plate 12 and the first side baffle 10 gradually decreases along the moving direction of the conveyor belt 1.

[0058] The direction adjustment component 5, located downstream of the leveling adjustment component 4, works in conjunction with the deflector plate 12 and the first side baffle 10 to adjust the material 2, after being leveled, to move forward in the same direction due to the narrowing lateral distance. Taking a medicine box as an example, when the medicine box in the leveled state passes through the direction adjustment component 5 with its length perpendicular to the direction of movement of the conveyor belt 1, the distance between the deflector plate 12 and the first side baffle 10 gradually decreases to less than the length of the medicine box. As a result, the medicine box is forced to turn so that its length is in the same direction as the direction of movement of the conveyor belt 1, thus passing through the direction adjustment component 5.

[0059] The direction adjustment assembly 5 also includes a second side baffle 11, which is vertically disposed on one side of the conveyor belt 1. The first side baffle 10 is disposed opposite to the second side baffle 11. The upstream end of the deflector plate 12 is hinged to the second side baffle 11. A distance adjustment rod 18 is movably disposed downstream of the second side baffle 11. One end of the distance adjustment rod 18 protrudes from the second side baffle 11 and abuts against the deflector plate 12.

[0060] The adjusting rod 18 has external threads on its side, and the second side baffle 11 has a through hole with internal threads. The adjusting rod 18 and the second side baffle 11 are connected by a threaded connection. When the adjusting rod 18 rotates, it can simultaneously adjust the distance of its protrusion from the second side baffle 11. Since the end of the adjusting rod 18 abuts against the steering plate 12, the posture of the steering plate 12 can be adjusted, and the minimum distance between the steering plate 12 and the first side baffle 10 can be adjusted.

[0061] By changing the relative position between the adjusting rod 18 and the adjusting groove, the minimum distance between the deflector plate 12 and the first side baffle 10 can be changed, thereby allowing the direction adjustment assembly 5 to adapt to materials 2 of different sizes.

[0062] The above three paragraphs describe one preferred method for achieving the goal of "the distance between the deflector plate 12 and the first side baffle 10 gradually decreasing along the moving direction of the conveyor belt 1". Its advantage is that it can adjust the minimum distance between the deflector plate 12 and the first side baffle 10 while having a simple and reliable structure that is not prone to failure. If there are other structural solutions that can achieve the goal of "the distance between the deflector plate 12 and the first side baffle 10 gradually decreasing along the moving direction of the conveyor belt 1", they can be directly replaced.

[0063] The laser marking mechanism 3 includes a vision detector 13 and a laser marking component arranged sequentially from upstream to downstream. The vision detector 13 is used to detect the position and orientation of the material 2. The laser marking component is signal-connected to the vision detector 13. The laser marking component marks the material 2 with laser inkjet based on the position and orientation data of the material 2.

[0064] The laser marking mechanism 3 also includes a frame, on which a display 14 is provided. The display 14 is connected to the laser marking component and the vision detector 13 respectively.

[0065] Staff can observe the detection results of the visual detector 13 and the marking effect of the laser marking device through the display 14.

[0066] The laser marking assembly includes an ultraviolet laser generator 15 and a mounting bracket. The mounting bracket includes a column 16 mounted on a frame and a crossbeam 17 vertically and movably mounted on the column 16. The ultraviolet laser generator 15 is mounted on the crossbeam 17 and is positioned facing the conveyor belt 1 below.

[0067] It employs a UV laser generator with 15V output laser, boasting high electro-optical conversion efficiency, compact size, and excellent beam quality. It is environmentally friendly, requires no frequent consumable replacements, has low energy consumption, and is easy to maintain. It is particularly suitable for marking on aluminum foil bags and plastic products.

[0068] In summary, after reading this utility model document, those skilled in the art can make various other corresponding modifications based on the technical solution and concept of this utility model without creative mental effort. Different application scenarios are all within the scope of protection of this utility model.

Claims

1. A high compatibility laser marking device, characterized in that, It includes a conveyor belt (1), and the conveyor belt (1) is provided with a material posture adjustment mechanism and a laser marking mechanism (3) in sequence along its conveying path; The laser marking mechanism (3) is used to print patterns on the surface of the material (2); The material posture adjustment mechanism includes a leveling adjustment component (4), which includes a roller (6) rotatably mounted above the conveyor belt (1). The rotation axis of the roller (6) is parallel to the horizontal plane, and the rotation axis of the roller (6) is set at a certain angle with the conveying direction of the conveyor belt (1). The angle is greater than 0° and less than 90°. The roller (6) rotates from bottom to top toward the material (2).

2. The high compatibility laser printing apparatus of claim 1, wherein, The roller (6) is provided with a plurality of blades (7), which are arranged symmetrically on the outer surface of the roller (6) with the axis of rotation of the roller (6) as a reference.

3. The high compatibility laser printing apparatus of claim 2, wherein, The blade is provided with an upstream end (71) and a downstream end (72) in sequence along the conveying path of the conveyor belt (1); the blade (7) is spirally arranged along the rotation axis of the roller (6), and when the blade rotates along the roller (6), the downstream end (72) is located at the front end in the rotation direction, and the upstream end (71) is located at the rear end in the rotation direction.

4. The high compatibility laser printing apparatus of claim 2, wherein The leveling adjustment assembly (4) also includes an auxiliary transport belt (8) that matches the position of the roller (6). The upper surface of the auxiliary transport belt (8) is provided with an auxiliary protrusion (9). The auxiliary protrusion (9) protrudes upward from the upper surface of the auxiliary transport belt (8). The auxiliary protrusion (9) is strip-shaped and its direction is perpendicular to the direction of material (2) movement.

5. The high compatibility laser printing apparatus of claim 1, wherein The material posture adjustment mechanism further includes a direction adjustment component (5), which is located downstream of the leveling adjustment component (4). The direction adjustment component (5) includes a first side baffle (10) and a deflector plate (12). The first side baffle (10) is vertically arranged on one side of the conveyor belt (1), and the direction of the first side baffle (10) is parallel to the moving direction of the conveyor belt (1). The deflector plate (12) is arranged above the conveyor belt (1), and the deflector plate (12) is arranged opposite to the first side baffle (10). The distance between the deflector plate (12) and the first side baffle (10) gradually decreases along the moving direction of the conveyor belt (1).

6. The high compatibility laser printing apparatus of claim 5, wherein, The direction adjustment assembly (5) further includes a second side baffle (11), which is vertically arranged on one side of the conveyor belt (1). The first side baffle (10) is arranged opposite to the second side baffle (11). The upstream end of the deflector plate (12) is hinged to the second side baffle (11). The downstream end of the second side baffle (11) is provided with an adjustment rod (18), one end of which protrudes from the second side baffle (11) and abuts against the deflector plate (12).

7. The high compatibility laser printing apparatus of claim 1, wherein The laser marking mechanism (3) includes a vision detector (13) and a laser marking component arranged sequentially from upstream to downstream. The vision detector (13) is used to detect the position and orientation of the material (2). The laser marking component is connected to the vision detector (13) by signal. The laser marking component marks the material (2) with laser inkjet printing according to the position and orientation data of the material (2).

8. The high compatibility laser printing apparatus of claim 7, wherein, The laser marking mechanism (3) also includes a frame, on which a display (14) is provided. The display (14) is connected to the laser marking component and the vision detector (13) respectively.

9. The high compatibility laser printing apparatus of claim 8, wherein, The laser marking assembly includes an ultraviolet laser generator (15) and a mounting bracket. The mounting bracket includes a column (16) mounted on the frame and a crossbeam (17) vertically and movably mounted on the column (16). The ultraviolet laser generator (15) is mounted on the crossbeam (17) and faces the conveyor belt (1) downwards.

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