Feeding and discharging mechanism for PET laser etching processing

Abstract

The utility model provides a feeding and discharging mechanism for PET (polyethylene terephthalate) laser etching processing, which belongs to the field of PET laser etching processing and comprises a fixing frame arranged on a conveyor. The feeding and discharging assembly comprises hollow rods rotationally connected to the left side and the right side of the top of the fixing frame, belt wheels are fixedly connected to the outer sides of the tops of the hollow rods, the same belt is arranged on the outer sides of the two belt wheels in a tensioning mode, and sleeves are slidably connected to the outer lower sides of the hollow rods. And the bottom of the hollow rod is fixedly connected with a chassis. According to the feeding and discharging assembly, synchronous feeding and discharging operation of the PET plate in the laser etching process can be achieved, the machining efficiency is improved compared with the common working procedure of feeding after discharging, height change of the PET plate in the transferring process is achieved through matching of a leveling buckle and a protruding part, the structure is exquisite, and the machining efficiency is improved. The requirement of an original power source is replaced, and the design cost and the manufacturing cost are both low.

Description

Technical Field

[0001] The utility model relates to a PET laser etching processing technology, in particular to a loading and unloading mechanism for PET laser etching processing. Background Art

[0002] Laser etching technology utilizes a non-contact laser process, offering high flexibility, high speed, no noise, a small heat-affected zone, and the ability to focus to a very small spot size at the laser wavelength. This technology offers excellent dimensional accuracy and quality in drilling, scribing, etching, and cutting, particularly through photochemical interactions with certain materials, resulting in "cold processing" without carbonization. During PET manufacturing, its surface is laser-etched, and a loading and unloading mechanism for PET laser etching is used during this process.

[0003] Existing PET sheets are typically loaded manually or handled by a suction cup robot during laser etching. The latter is a complex structural design, requiring multiple pneumatic cylinders, motors, and other components to achieve multi-directional movement of the PET sheet. Furthermore, these structures often only support either loading or unloading, reducing processing efficiency. Therefore, we propose a loading and unloading mechanism for PET laser etching to address these challenges. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a loading and unloading mechanism for PET laser etching processing to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved by the following technical solution: comprising a fixing frame, wherein the fixing frame is arranged on the conveyor;

[0006] The loading and unloading assembly comprises a hollow rod rotatably connected to the left and right sides of the top of the fixed frame, the top outer side of the hollow rod is fixedly connected to a pulley, the outer sides of the two pulleys are tensioned with the same belt, the outer lower side of the hollow rod is slidably connected to a sleeve, the bottom of the hollow rod is fixedly connected to a chassis, a spring is provided at the top of the chassis and located on the outside of the hollow rod, a connecting rod is fixedly connected to one side of the top of the sleeve, and a leveling buckle is fixedly connected to the end of the connecting rod, and a guide ring is also provided on the outside of the hollow rod, and the guide ring is fixedly connected to the top inner wall of the fixed frame, and the left and right sides of the bottom of the guide ring are respectively fixedly connected to protrusions, and the bottom of the sleeve is fixedly connected to a suction cup assembly.

[0007] Preferably, a motor is fixedly connected to the rear side of the top inner wall of the fixing frame, and gears are fixedly connected to the output end of the motor and the outer upper side of the adjacent hollow rod, and the two gears are meshed with each other.

[0008] Preferably, notches are provided on both the left and right sides of the fixing frame, and a connecting plate is fixedly connected to the bottom of the fixing frame.

[0009] Preferably, the shape of the convex portion is a hemisphere, and a transition fillet is provided at the connection between the convex portion and the guide ring.

[0010] Preferably, a bending portion is provided at the top of the sleeve, and one end of the spring abuts against the top inner wall of the bending portion.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up the loading and unloading components, the PET plate can be loaded and unloaded synchronously during the laser etching process, which improves the processing efficiency compared to the common process of unloading first and then loading. The height change of the PET plate during the transfer process is achieved through the cooperation of the leveling buckle and the protrusion. The structure is sophisticated, replacing the original need for a power source, and the design and manufacturing costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a front structural schematic diagram of the utility model;

[0016] Figure 3 A partial three-dimensional structural diagram of the utility model;

[0017] Figure 4 yes Figure 2 An enlarged schematic diagram of part A is shown.

[0018] In the figure: 1. Fixed frame; 2. Hollow rod; 3. Pulley; 4. Belt; 5. Sleeve; 6. Chassis; 7. Spring; 8. Connecting rod; 9. Leveling buckle; 10. Guide ring; 11. Protrusion; 12. Suction cup assembly; 13. Motor; 14. Gear; 15. Notch. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 4As shown, a loading and unloading mechanism for PET laser etching processing includes a fixed frame 1, which is arranged on a conveyor; a loading and unloading assembly, which includes a hollow rod 2 rotatably connected to the left and right sides of the top of the fixed frame 1, a pulley 3 is fixedly connected to the outer side of the top of the hollow rod 2, and the same belt 4 is tensioned on the outer sides of the two pulleys 3, a sleeve 5 is slidably connected to the outer lower side of the hollow rod 2, the bottom of the hollow rod 2 is fixedly connected to a chassis 6, a spring 7 is provided on the top of the chassis 6 and located on the outer side of the hollow rod 2, a connecting rod 8 is fixedly connected to one side of the top of the sleeve 5, and a leveling buckle 9 is fixedly connected to the end of the connecting rod 8, and a guide ring 10 is also provided on the outer side of the hollow rod 2, the guide ring 10 is fixedly connected to the top inner wall of the fixed frame 1, and the left and right sides of the bottom of the guide ring 10 are respectively fixedly connected to protrusions 11, and the bottom of the sleeve 5 is fixedly connected to a suction cup assembly 12.

[0021] It should be noted that the conveyor is used to move the PET plate into or out of the laser etching range. It is used for bidirectional transportation of the PET plate. The fixed frame 1 is fixed between the two side frames of the conveyor. The pulley 3 and the belt 4 are used for transmission to ensure that one motor can simultaneously drive the hollow rods 2 on both sides to rotate synchronously. The sleeve 5 can slide on the outside of the hollow rod 2 to ensure that it can rotate synchronously with the hollow rod 2 and can be lifted and lowered while rotating. The spring 7 is used to ensure that the sleeve 5 is not subjected to other forces. The leveling buckle 9 connected to the top of the sleeve 5 through the connecting rod 8 can always abut against the guide ring 10. The spring 7 The elastic coefficient range should be selected to ensure that the sleeve 5 is not prone to large-scale up and down shaking during normal use. The suction cup on the suction cup assembly 12 is a vacuum suction cup, which is used to create internal negative pressure by connecting the air pipe when needed to absorb and transfer the PET plate to avoid damage to the surface of the PET plate caused by direct grasping of the robot. The suction cup assembly 12 is an existing mature technology and will not be described in detail. By adopting the structural design of the loading and unloading assembly, it can be driven by a power source to realize the unloading and loading operations of the PET plate at the same time, simplifying the unloading and unloading operation process and improving the processing efficiency.

[0022] In this embodiment, a motor 13 is also fixedly connected to the rear side of the top inner wall of the fixed frame 1, and a gear 14 is fixedly connected to the output end of the motor 13 and the outer upper side of the adjacent hollow rod 2. The two gears 14 are engaged with each other. The engagement of the motor 13 and the gear set can facilitate the driving of the mechanism. It should be noted that the motor 13 needs to be a motor type whose output shaft can rotate forward and reverse to facilitate reciprocating loading and unloading operations.

[0023] In this embodiment, notches 15 are provided on both the left and right sides of the fixing frame 1, and a connecting plate is fixedly connected to the bottom of the fixing frame 1. The notch 15 can avoid obstruction between the suction cup assembly 12 and the fixing frame 1 when the suction cup assembly 12 rotates with the sleeve 5, and the height of the notch 15 is higher than the maximum height that the suction cup assembly 12 can be raised and lowered to avoid interference during structural operation.

[0024] In this embodiment, the protrusion 11 is in the shape of a hemisphere, and a transition fillet is provided at the connection between the protrusion 11 and the guide ring 10. The transition fillet can ensure that the sliding trajectory of the leveling buckle 9 on the guide ring 10 is smoother, the height rise and fall is smoother, and the service life of the structure is improved.

[0025] In this embodiment, a bending portion is provided at the top of the sleeve 5, and one end of the spring 7 abuts against the top inner wall of the bending portion. The bending portion can facilitate the abutment between the sleeve 5 and the spring 7. At the same time, the bending portion can also increase the connection area with the hollow rod 2, making it convenient to rotate synchronously with it through structural design, thereby improving the stability and reliability of the operation of the mechanism.

[0026] When the utility model is implemented specifically: a loading area and a unloading area for PET plates are respectively provided on the left and right sides of the conveyor frame. When a piece of PET plate that has been laser etched is returned to the bottom of the fixed frame 1 with the conveyor, the motor 13 is controlled by the controller to work, and the hollow rod 2 on one side is driven to rotate by the mutual engagement of the gears 14. At the same time, the hollow rod 2 on the other side is driven to rotate by the cooperation of the belt 4 and the pulley 3. When the hollow rod 2 rotates, it will drive the sleeve 5 to rotate synchronously. When the sleeve 5 rotates, it will drive the leveling buckle 9 to rotate through the connecting rod 8. Under the action of the spring 7, the leveling buckle 9 on the sleeve 5 will always be tightly pressed against the guide ring 10. When the leveling buckle 9 rotates to contact the convex part 11, the hard contact is squeezed. Under the action, the sleeve 5 will drive the suction cup assembly 12 to descend in height until it reaches the highest point. At this time, the two suction cup assemblies 12 will contact the etched PET plate and the PET plate in the loading area respectively. At this time, the suction cup assembly 12 is started to adsorb the lower PET plate, and then the output end of the motor 13 is controlled to reverse, so that the suction cup assembly 12 with the etched PET plate rotates to the unloading area, and the suction cup assembly 12 with the new PET plate rotates to the top of the conveyor. When the suction cup assembly 12 moves to this position, it will also be lowered to the lowest point. At this time, the suction cup assembly 12 is closed, and the PET plate will fall under the action of gravity. After that, the new PET plate will move with the conveyor to the etching area for laser etching processing.

[0027] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A loading and unloading mechanism for PET laser etching processing, characterized in that: include A fixed frame (1), wherein the fixed frame (1) is arranged on the conveyor; The loading and unloading assembly comprises a hollow rod (2) rotatably connected to the left and right sides of the top of the fixed frame (1); a pulley (3) is fixedly connected to the outer side of the top of the hollow rod (2); the outer sides of the two pulleys (3) are tensioned with the same belt (4); a sleeve (5) is slidably connected to the outer lower side of the hollow rod (2); the bottom of the hollow rod (2) is fixedly connected to a chassis (6); a spring (7) is provided at the top of the chassis (6) and located on the outer side of the hollow rod (2); a connecting rod (8) is fixedly connected to one side of the top of the sleeve (5); a leveling buckle (9) is fixedly connected to the end of the connecting rod (8); a guide ring (10) is further provided on the outer side of the hollow rod (2); the guide ring (10) is fixedly connected to the inner wall of the top of the fixed frame (1); the left and right sides of the bottom of the guide ring (10) are respectively fixedly connected to convex portions (11); and the bottom of the sleeve (5) is fixedly connected to a suction cup assembly (12).

2. A loading and unloading mechanism for PET laser etching according to claim 1, characterized in that: A motor (13) is also fixedly connected to the rear side of the top inner wall of the fixing frame (1), and a gear (14) is fixedly connected to the output end of the motor (13) and the outer upper side of the adjacent hollow rod (2), and the two gears (14) are meshed with each other.

3. A loading and unloading mechanism for PET laser etching according to claim 2, characterized in that: Notches (15) are provided on both the left and right sides of the fixing frame (1), and a connecting plate is fixedly connected to the bottom of the fixing frame (1).

4. A loading and unloading mechanism for PET laser etching according to claim 1, characterized in that: The convex portion (11) is in the shape of a hemisphere, and a transition fillet is provided at the connection between the convex portion (11) and the guide ring (10).

5. A loading and unloading mechanism for PET laser etching according to claim 1, characterized in that: A bending portion is provided at the top of the sleeve (5), and one end of the spring (7) abuts against the top inner wall of the bending portion.

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