Multi-station multi-size film feeding and discharging mechanism

Abstract

The utility model relates to the field of membrane patch's transfer, concretely to a kind of multi-station multi-size membrane material feeding and discharging mechanism, comprising: support frame, for supporting feeding mechanism;Mounting plate, is connected with support frame by the driving direction being vertical jacking device;Pickup assembly, connection is at the lower end of mounting plate;The pickup assembly includes four rectangular arrangement settings suction nozzle, after the suction nozzle simultaneously suck membrane patch, two suction nozzles of relative angle setting simultaneously reciprocate up and down, two suction nozzles of adjacent setting reciprocate up and down in turn.By the setting of shaking suction nozzle, even if there is excess membrane patch is adhered when membrane patch is taken out, also can be shaken by four shaking suction nozzle orderly, and excess membrane patch is shaken down, avoid the condition of taking out multiple membrane patches once;By the setting of pressing device, when membrane patch is placed, pressing device first carries out resistance to membrane patch, then suction nozzle is separated from membrane patch, avoid the deviation of membrane patch placement position when suction nozzle breaks vacuum.

Description

Technical Field

[0001] This utility model relates to the field of membrane transfer technology, and in particular to a multi-station, multi-size membrane material loading and unloading mechanism. Background Technology

[0002] Optical films are widely used in everyday life, including eyeglass coating, LCD displays, electronic paper, and LED lighting. Optical films are typically thin and made of soft materials. To facilitate transport and use, multiple films are often stacked together and then removed one by one. During removal, due to static electricity or compression creating a vacuum, multiple films may be removed at once by the suction cup. This requires manual removal of the excess film, significantly impacting production efficiency. Furthermore, when placing the film, the vacuum breaking can cause the suction cup to detach from the film, moving the film and causing misalignment, affecting the accuracy of subsequent processes. Therefore, achieving stable film transfer is a problem that those skilled in the art need to consider. Utility Model Content

[0003] The purpose of this invention is to provide a multi-station, multi-size membrane material loading and unloading mechanism to solve the problem of instability during membrane transfer in the prior art.

[0004] The technical solution of this utility model is: a multi-station, multi-size film material loading and unloading mechanism, comprising: Support frame, the support frame being used to support the feeding mechanism; The mounting plate is connected to the support frame via a vertically driven lifting device; Pick up the component and attach it to the bottom of the mounting plate; The pickup assembly includes four rectangularly arranged suction nozzles. After the suction nozzles simultaneously pick up the membrane, two suction nozzles arranged at opposite corners move up and down simultaneously, and two adjacent suction nozzles move up and down sequentially.

[0005] Preferably, a first bracket is fixedly connected to the support frame, and a plurality of guide sleeves are provided on the first bracket. A guide rod is provided through the guide sleeve, and the lower end of the guide rod is fixedly connected to the mounting plate.

[0006] Preferably, one end of the lifting device is fixedly connected to the support frame, and the other end is connected to the center of the mounting plate; it can drive the mounting plate to move in the vertical direction.

[0007] Preferably, the pickup assembly includes a first guide rail disposed at the bottom end of the mounting plate, two connecting plates connected to the first guide rail, and a first driving device for driving the two connecting plates to move synchronously in opposite directions on the first guide rail.

[0008] Preferably, the connecting plate is provided with a second guide rail and a second driving device. The two suction nozzles are connected to the second guide rail and simultaneously connected to the second driving device. The second driving device drives the two suction nozzles to move synchronously in opposite directions on the second guide rail.

[0009] Preferably, the guiding direction of the second guide rail is perpendicular to the guiding direction of the first guide rail.

[0010] Preferably, the suction nozzle is a vibrating suction nozzle.

[0011] Preferably, the suction nozzle is connected to a fourth driving device capable of driving its reciprocating motion.

[0012] Preferably, the picking assembly further includes a bottom pressing device disposed on the mounting plate, the pressing device including a third driving device with a vertical driving direction and a pressing plate connected to the third driving device; The pressing device is disposed between the four suction nozzles; The pressure plate is equipped with a thickness sensor to detect the thickness of the picked-up diaphragm.

[0013] Preferably, a buffer is provided at the upper end of the mounting plate, and the end of the buffer away from the mounting plate is connected to the first bracket.

[0014] Compared with the prior art, the advantages of this utility model are: (1) By setting the shaking nozzle, when the membrane is removed, the four shaking nozzles can shake the excess membrane in an orderly manner, avoiding the situation of removing multiple membranes at once; In addition, the thickness of the picked-up membrane is detected by a thickness sensor to ensure that only one membrane is picked up at a time, further avoiding the occurrence of double-tensioning. (2) By using four suction nozzles and the suction nozzles at opposite corners to move up and down simultaneously, compared with the traditional synchronous reciprocating motion of multiple suction nozzles, the amount of offset when the membrane falls can be reduced, so that the subsequent picking position of the membrane is still accurate. (3) By setting up the pressing device, when the diaphragm is placed, the pressing device first presses the diaphragm, and then the suction nozzle detaches from the diaphragm, so as to avoid the displacement of the diaphragm placement position when the suction nozzle breaks the vacuum, thereby improving the accuracy of the diaphragm after transfer. In addition, when placing the membrane, the membrane material is flattened by the pressing device to ensure that the subsequent suction cup can effectively adsorb the membrane. (4) By driving the movement of the suction nozzle on the first and second guide rails, the relative position of the suction nozzle can be adjusted to adapt to the switching of various diaphragms of different specifications. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the multi-station, multi-size film material loading and unloading mechanism of this utility model; Figure 2 This is a structural schematic diagram of the multi-station, multi-size film material loading and unloading mechanism of this utility model from another angle; Figure 3 This is a schematic diagram of the structure of the pickup component described in this utility model.

[0016] The components include: support frame 1, linear module 11, lifting device 2, mounting plate 3, first bracket 4, guide sleeve 41, guide rod 42, buffer 43, limit plate 45, sensor 46, pickup assembly 5, first guide rail 51, connecting plate 52, first drive device 53, second guide rail 54, second drive device 55, suction nozzle 56, pressing device 6, third drive device 61, pressure plate 62, and thickness sensor 63. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-3 As shown, a multi-station, multi-size film material loading and unloading mechanism is used for loading optical films or other sheet-like film products. The films are stacked in a hopper or a fixed location. The relative positions of the four suction nozzles correspond exactly to the four corners of the film. The picking assembly moves to directly above the film and, driven by a lifting device, moves downwards until the suction nozzles contact or are about to release the film, then stops. The film is picked up by the suction nozzles; after picking it up, two suction nozzles positioned diagonally simultaneously drive the film diagonally up and down reciprocatingly, and two adjacent suction nozzles sequentially drive the film up and down reciprocatingly, shaking off any excess film. Then, the lifting device drives the film upwards, and the film is moved to the next process via a module below the support frame. When placing the film, a pressing device first presses the film at the center, and then the suction nozzles disengage from the film to prevent displacement and warping during placement. Specifically: A multi-station, multi-size film material loading and unloading mechanism includes: The support frame 1 is a gantry structure used to support the feeding mechanism. Its bottom is connected to the corresponding equipment via a linear module. The linear module 11 drives the support frame 1 to transfer the picked-up film to the subsequent workstation.

[0018] A lifting device 2 is connected to the center of the support frame 1. The lower end of the lifting device 2 is connected to the center of the mounting plate 3. The lifting device 2 is driven vertically, allowing the mounting plate 3 to move vertically. In this embodiment, to ensure the stability of the vertical movement of the mounting plate 3, a first bracket 4 is fixedly installed on the support frame 1. Multiple guide sleeves 41 are installed on the first bracket 4, and guide rods 42 are threaded through the guide sleeves 41. The lower end of the guide rods 42 is fixedly connected to the upper end of the mounting plate 3. When the mounting plate 3 moves vertically, the guide rods 42 and guide sleeves 41 guide and limit its movement, making the movement more stable.

[0019] A buffer 43 is provided at the upper end of the mounting plate 3, and the end of the buffer 43 away from the mounting plate 3 is connected to the first bracket 4. When the mounting plate 3 moves upward, and the buffer 43 abuts against the lower end face of the first bracket 4, it indicates that the mounting plate 3 has reached its maximum upward stroke. In other preferred embodiments, a limit plate 45 is provided at the top of the guide rod 42, and a sensor 46 is provided on the limit plate 45. When the guide rod 42 moves downward with the mounting plate 3, the sensor 46 abuts against or senses the first bracket 4, indicating that the mounting plate 3 has reached its maximum downward stroke.

[0020] The lower end of the mounting plate 3 is connected to a pickup assembly 5. The pickup assembly 5 includes a first guide rail 51 disposed at the bottom end of the mounting plate 3, two connecting plates 52 connected to the first guide rail 51, and a first drive device 53 that drives the two connecting plates 52 to move synchronously in opposite directions on the first guide rail 51.

[0021] Each connecting plate 52 is provided with a second guide rail 54 and a second driving device 55. Two suction nozzles 56 are connected to the second guide rail 54 and simultaneously connected to the second driving device 55. The second driving device 55 drives the two suction nozzles 56 to move synchronously in opposite directions on the second guide rail 54.

[0022] In this embodiment, multiple sets of pickup components 5 can be provided to simultaneously pick up multiple films. The guiding direction of the second guide rail 54 is perpendicular to the guiding direction of the first guide rail 51. Two suction nozzles 56 are connected to each connecting plate 52, and four suction nozzles 56 are provided on the two connecting plates 52. The two suction nozzles 56 on the same connecting plate 52 can be moved away from or closer to each other by the driving of the second driving device 55; the two connecting plates 52 can be moved closer to or further apart by the driving of the first driving device 53, thereby adjusting the relative position of the four suction nozzles 56, thus enabling the pickup of films of different specifications and models.

[0023] The suction nozzle 56 is a vibrating suction nozzle. In other preferred embodiments, the suction nozzle 56 is connected via a fourth driving device (not shown in the figure) capable of driving reciprocating motion. The fourth driving device can be a cylinder to drive the suction nozzle to vibrate at high frequency. The process of picking up the diaphragm is as follows: First, the picking device moves with the support frame 1 to directly above the diaphragm; the lifting device 2 drives the mounting plate 3 to move downward, thereby driving the suction nozzle 56 to move downward until the suction nozzle 56 contacts or is about to contact the diaphragm, and then stops, and the diaphragm is picked up by the suction nozzle 56. At this time, the four suction nozzles 56 are respectively attached to the four corners of the diaphragm. After picking up the diaphragm, two groups of suction nozzles 56, with two suction nozzles 56 at opposite corners as one group, drive the diaphragm upward and then downward, and at the same time, the other group of two suction nozzles 56 drives the diaphragm upward and then downward, forming a repetitive motion. This can shake off the excess diaphragm that is stuck to the bottom of the diaphragm. In other embodiments, excess membranes can also be shaken off by the high-frequency disordered vibration of the four suction nozzles 56; however, the position where the shaken-off membranes fall may be offset to some extent.

[0024] The pickup assembly 5 also includes a bottom pressing device 6 disposed on the mounting plate 3. The pressing device 6 includes a third driving device 61 with a vertical driving direction and a pressing plate 62 connected to the third driving device 61. The pressing device 6 is disposed between the four suction nozzles 56. A thickness sensor 63 is also disposed on the pressing plate to measure the thickness of the film picked up by the pickup device. By verifying the thickness of the film, the simultaneous pickup of two or more films is avoided. When placing the film, the linear module first drives the support frame 1 to move, thereby driving the film to the preset placement position. Then, the lifting device 2 drives the film to move downward, so that the film contacts or is about to contact the placement position. The third driving device 61 drives the pressing plate 62 to press the film downward to the placement position. Then, the four suction nozzles 56 break the vacuum and detach from the film. Finally, the pressing plate 62 detaches the film to complete the placement of the film. In this process, the pressure plate 62 first presses against the diaphragm, and then the suction nozzle 56 breaks the vacuum to detach the diaphragm. This avoids the diaphragm being moved during vacuum breaking, causing it to shift position and resulting in inaccurate placement. Furthermore, if the diaphragm is warped during placement, it can be flattened by the pressure of the pressure plate. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A multi-station, multi-size film material loading and unloading mechanism, characterized in that, include: Support frame, the support frame being used to support the feeding mechanism; The mounting plate is connected to the support frame via a vertically driven lifting device; Pick up the component and attach it to the bottom of the mounting plate; The pickup assembly includes four rectangularly arranged suction nozzles. After the suction nozzles simultaneously pick up the membrane, two suction nozzles arranged at opposite corners move up and down simultaneously, and two adjacent suction nozzles move up and down sequentially.

2. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: A first bracket is fixedly connected to the support frame. Multiple guide sleeves are provided on the first bracket. Guide rods are passed through the guide sleeves, and the lower ends of the guide rods are fixedly connected to the mounting plate.

3. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: One end of the lifting device is fixedly connected to the support frame, and the other end is connected to the center of the mounting plate; It can drive the mounting plate to move in the vertical direction.

4. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: The pickup assembly includes a first guide rail disposed at the bottom of the mounting plate, two connecting plates connected to the first guide rail, and a first driving device that drives the two connecting plates to move synchronously in opposite directions on the first guide rail.

5. The multi-station, multi-size film material loading and unloading mechanism according to claim 4, characterized in that: The connecting plate is provided with a second guide rail and a second driving device. The two suction nozzles are connected to the second guide rail and simultaneously connected to the second driving device. The second driving device drives the two suction nozzles to move synchronously in opposite directions on the second guide rail.

6. The multi-station, multi-size film material loading and unloading mechanism according to claim 5, characterized in that: The guiding direction of the second guide rail is perpendicular to the guiding direction of the first guide rail.

7. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: The suction nozzle is a vibrating suction nozzle.

8. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: The suction nozzle is connected to a fourth drive device capable of driving its reciprocating motion.

9. The multi-station, multi-size film material loading and unloading mechanism according to claim 1, characterized in that: The pickup assembly also includes a bottom pressing device disposed on the mounting plate, the pressing device including a third driving device with a vertical driving direction and a pressing plate connected to the third driving device; The pressing device is disposed between the four suction nozzles; The pressure plate is equipped with a thickness sensor to detect the thickness of the picked-up diaphragm.

10. A multi-station, multi-size film material loading and unloading mechanism according to claim 2, characterized in that: A buffer is provided at the upper end of the mounting plate, and the end of the buffer away from the mounting plate is connected to the first bracket.

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