A device for automatically adsorbing PET sheets and placing them on a conveying line as required

Abstract

The utility model belongs to the field of conveying line, concretely is a kind of device that PET sheet is automatically adsorbed and placed on conveying line according to requirement. Including: taking material tray, for placing PET sheet;Conveying line, the conveying line is arranged in taking material tray side, and setting material placing tray on conveying line, for conveying and placing PET sheet;Suction cup clamp jaw mechanism, the suction cup clamp jaw mechanism is arranged in the upper of taking material tray and conveying line, for adsorbing PET sheet and moving it from taking material tray to material placing tray. The utility model makes PET sheet two sides produce controllable inward bending deformation by the slide platform air cylinder drive two sides second suction cup independent depression, utilizes physical deformation to destroy the adsorption of lower layer PET sheet, reliably peels off multiple adsorbed sheet, ensures only single PET sheet is transferred, overcomes the problem that traditional adsorption device is easy to simultaneously grab multiple sheets.

Description

Technical Field

[0001] This utility model belongs to the field of conveyor lines, specifically a device that automatically adsorbs PET sheets and places them on the conveyor line as required. Background Technology

[0002] PET sheets are excellent electrical insulation materials with high resistivity and breakdown voltage, effectively preventing current conduction. PET sheets also possess high tensile strength and flexural modulus, allowing them to withstand significant external forces without easily deforming or being damaged. However, when suction cups are used, multiple PET sheets are easily adsorbed and difficult to separate. They are then placed at designated locations on the conveyor line. To ensure production volume, the conveyor line operates at high speeds, requiring dedicated personnel to separate the PET sheets. This can lead to wasted manpower or failure to promptly remove excess PET sheets for subsequent processes (such as spraying, coating, and printing), resulting in substandard product parameters or even scrapping.

[0003] Application number 202121483310.5 discloses an automatic laminating machine for PET sheet processing, comprising a laminating machine body, an mounting plate slidably mounted on the laminating machine body, and an adsorption component for adsorbing PET sheets mounted on the mounting plate; a base plate fixedly connected to the laminating machine body, and a feeding component for placing PET sheets mounted on the base plate; the adsorption component includes a cylinder fixedly connected to the mounting plate, a telescopic rod fixedly connected to the output end of the cylinder, a fixed plate fixedly connected to the end wall of the telescopic rod away from the cylinder, and a suction cup fixedly connected to the fixed plate; and a blower component for blowing air onto the PET sheets mounted on the base plate.

[0004] Patent CN202121483310.5 uses a blower to blow air onto a stack of PET sheets in an attempt to separate the upper sheet. However, this method has the following problems:

[0005] 1. The airflow has insufficient separation force on thin PET sheets, especially in high humidity environments, where the adsorption force between sheets is enhanced, and multiple sheets are still easily adsorbed at the same time;

[0006] 2. Strong airflow disturbances cause PET sheets to shift on the feeding tray, increasing the failure rate of secondary positioning by the suction cup;

[0007] 3. Continuous blowing requires a high-power air pump, which consumes more than 30% of the total power consumption of the equipment, and is noisy, which deteriorates the working environment;

[0008] 4. Airflow may carry dust that contaminates the surface of the PET sheet, affecting the yield of subsequent coating / printing. Summary of the Invention

[0009] In order to solve the above problems, this utility model provides a device for automatically adsorbing PET sheets and placing them on a conveyor line as required.

[0010] This utility model adopts the following solution: a device for automatically adsorbing PET sheets and placing them on a conveyor line as required, comprising:

[0011] Feeding tray, used to hold PET sheets;

[0012] A conveyor line is provided on one side of the feeding tray, and a feeding tray is provided on the conveyor line for conveying and placing PET sheets;

[0013] The suction cup gripper mechanism is located above the feeding tray and the conveyor line, and is used to pick up PET sheets and transfer them from the feeding tray to the discharging tray.

[0014] In some embodiments, the suction cup gripper mechanism includes:

[0015] At least 4 suction cups,

[0016] Two of the first suction cups are located in the middle section and are used to adsorb the middle part of the PET sheet;

[0017] Two second suction cups are located on both sides and are mounted on a slide cylinder. The slide cylinder drives the second suction cups to move independently in the vertical direction to adsorb the sides of the PET sheet and bend and deform it.

[0018] In some embodiments, the suction cup gripper mechanism further includes:

[0019] The suction cup cylinder connecting plate is a rectangular plate, the length of which is at least equivalent to the length of the PET sheet being adsorbed.

[0020] Two first suction cups are symmetrically arranged on both sides of the middle part of the suction cup cylinder connecting plate;

[0021] Two slide cylinders are symmetrically arranged at both ends of the suction cup cylinder connecting plate.

[0022] In some embodiments, cylinder mounting plates are fixed to both ends of the suction cup cylinder connecting plate, one side of the slide cylinder is fixed to the cylinder mounting plate, the other side of the slide cylinder is fixed to the suction cup mounting plate, and the second suction cup is fixed to the suction cup mounting plate.

[0023] In some embodiments, the middle part of the suction cup cylinder connecting plate is fixed on the z-direction moving module to enable the suction cup cylinder connecting plate to move vertically.

[0024] The z-direction moving module is installed in the middle of the crossbeam, which is set on the y-direction moving module to drive the z-direction moving module from above the material pick-up tray to above the conveyor line.

[0025] In some embodiments, the y-direction moving module is mounted on the gantry column, the gantry column and the material handling tray are mounted on the large plate, and the conveyor line passes through the upper side of the large plate.

[0026] In some embodiments, a control system is also included, which is connected to the drive unit of the y-direction moving module, the z-direction moving module, the slide cylinder, and the conveyor line;

[0027] The control system is configured to drive the components to perform the following operations:

[0028] The module moves in the y direction and sends a movement command to drive the crossbeam to move horizontally between the material pick-up tray and the material unload tray.

[0029] Sending lifting commands to the module in the z-direction drives the suction cup cylinder connecting plate to move vertically, thereby enabling the suction cup to adsorb and release the PET sheet;

[0030] Send a telescopic command to the slide cylinder to drive the second suction cup to move down independently, so that the PET sheet bends and deforms on both sides to peel off the excess sheet;

[0031] Send start / stop commands to the conveyor line to control the conveying action of the feeding tray.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. Completely solve the problem of sheet adhesion:

[0034] This invention uses a sliding cylinder to drive the second suction cups on both sides to press down independently, causing the PET sheet to bend and deform in a controllable manner on both sides. This physical deformation breaks the adsorption force of the lower PET sheet, reliably peeling off multiple adsorbed sheets and ensuring that only a single PET sheet is transferred. This overcomes the industry problem that traditional adsorption devices can easily grab multiple thin sheets at the same time.

[0035] 2. Highly efficient and precise fully automated transfer:

[0036] This invention achieves high-precision positioning and transfer of PET sheets from the feeding tray to the discharging tray by coordinating the movement of the Y-axis and Z-axis moving modules and combining the control system with synchronous control of the lifting and translation of the suction cup assembly. At the same time, the automatic start and stop of the conveyor line forms a continuous operation process, which significantly improves production efficiency and avoids human operation errors. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall mechanism digital model of this utility model;

[0038] Figure 2 This is a schematic diagram of the suction cup gripper mechanism of this utility model;

[0039] Figure 3 This is a schematic diagram of the y-direction movement module of this utility model;

[0040] Figure 4This is a schematic diagram of the z-direction movement module of this utility model;

[0041] In the diagram: 1. Large plate, 2. Gantry column, 3. Y-axis moving module, 4. Crossbeam, 5. Z-axis moving module, 6. Suction cup cylinder connecting plate, 7. Circular suction cup, 8. Slide table cylinder, 9. Picking tray, 10. Discharging tray, 11. Cylinder mounting plate, 12. Suction cup mounting plate, 13. Conveyor line. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] like Figure 1-2 As shown, an automatic device for adsorbing PET sheets and placing them on a conveyor line as required includes: a feeding tray 9 for holding PET sheets; a conveyor line 13 disposed on one side of the feeding tray 9, with a dispensing tray 10 disposed on the conveyor line 13 for conveying and placing PET sheets; and a suction cup gripper mechanism disposed above the feeding tray 9 and the conveyor line 13 for adsorbing PET sheets and transferring them from the feeding tray 9 to the dispensing tray 10.

[0044] The suction cup gripper mechanism includes at least four suction cups 7, of which two first suction cups 7.1 are located in the middle for adsorbing the middle part of the PET sheet; and two second suction cups 7.2 are located on both sides and are mounted on a sliding cylinder 8. The sliding cylinder 8 drives the second suction cups 7.2 to move independently in the vertical direction for adsorbing the sides of the PET sheet and bending it. A suction cup cylinder connecting plate 6 is also included. The suction cup cylinder connecting plate 6 is a rectangular plate with a length at least equal to the length of the PET sheet being adsorbed. The two first suction cups 7.1 are symmetrically arranged on both sides of the middle of the suction cup cylinder connecting plate 6; and the two sliding cylinders 8 are symmetrically arranged at both ends of the suction cup cylinder connecting plate 6.

[0045] Specifically, cylinder mounting plates 11 are fixed to both ends of the suction cup cylinder connecting plate 6, one side of the slide cylinder 8 is fixed to the cylinder mounting plate 11, the other side of the slide cylinder 8 is fixed to the suction cup mounting plate 12, and the second suction cup 7.2 is fixed to the suction cup mounting plate 12.

[0046] Specifically, the suction cup cylinder connecting plate 6 is fixed in the middle on the z-direction moving module 5, which is used to make the suction cup cylinder connecting plate 6 move vertically; the z-direction moving module 5 is installed in the middle of the crossbeam 4, and the crossbeam 4 is set on the y-direction moving module 3, which is used to drive the z-direction moving module 5 to move from above the material picking plate 9 to above the conveyor line 13.

[0047] Four sets of gantry columns 2 are fixed at the four corners of the welded large plate 1. Y-axis moving modules 3 are mounted on two of the gantry columns 2, forming two symmetrical sets of Y-axis moving modules 3. A crossbeam 4 is installed between the two sets of Y-axis moving modules 3. The Y-axis moving modules 3 drive the crossbeam 4 to move from above the material handling tray 9 to above the conveyor line 13. A Z-axis moving module 5 is fixed in the middle of the crossbeam 4. The Z-axis moving module 5 drives the suction cup cylinder connecting plate 6 to move up and down.

[0048] Specifically, the material handling tray 9 is a rectangular tray used for stacking PET sheets.

[0049] The conveyor line 13 adopts a belt conveyor mechanism, which runs horizontally through the top of the large plate 1. The surface of the conveyor line 13 belt is provided with feeding trays 10 at equal intervals. The feeding trays 10 are ABS injection molded parts with positioning protrusions.

[0050] The top of the gantry column 2 is equipped with a Y-direction moving module 3. The Y-direction moving module 3 is a ball screw mechanism driven by a servo motor. The two ends of the crossbeam 4 are fixedly connected to the sliders of the Y-direction moving module 3.

[0051] A z-direction moving module 5 is fixed in the middle of the crossbeam 4. The z-direction moving module 5 adopts a ball screw mechanism driven by a servo motor, and its output end is connected to the center of the upper surface of the suction cup cylinder connecting plate 6.

[0052] The suction cup cylinder connecting plate 6 is a rectangular plate of 6061 aluminum alloy, the length of which is close to the maximum size of the PET sheet. Second suction cups 7.2 are installed at both ends of the suction cup cylinder connecting plate 6, so that the second suction cups 7.2 can just adsorb the two ends of the PET sheet along its length. Two first suction cups 7.1 are threadedly installed on both sides of the middle part of the suction cup cylinder connecting plate 6. The first suction cups 7.1 are vacuum suction cups, and their adsorption surfaces are in contact with the middle of the PET sheet.

[0053] The suction cup cylinder connecting plate 6 has cylinder mounting plates 11 welded to both ends. Each cylinder mounting plate 11 has a slide cylinder 8 fixed to its outer side by bolts. The piston rod of the slide cylinder 8 is vertically downward and connected to the suction cup mounting plate 12 at its end. A second suction cup 7.2 is installed at the lower end of the suction cup mounting plate 12, forming an independently lifting side adsorption unit.

[0054] An apparatus for automatically adsorbing PET sheets and placing them on a conveyor line as required, further includes a control system connected to the drive units of the y-direction moving module 3, the z-direction moving module 5, the slide cylinder 8, and the conveyor line 13.

[0055] The control system is configured to drive the components to perform the following operations:

[0056] 1. Move module 3 in the y direction and send a movement command to drive the crossbeam 4 to move horizontally between the picking tray 9 and the discharging tray 10;

[0057] 2. Send a lifting command to the module 5 in the z direction to drive the suction cup cylinder connecting plate 6 to move vertically, so as to realize the adsorption and release of the PET sheet by the suction cup 7;

[0058] 3. Send a telescopic command to the slide cylinder 8 to drive the second suction cup 7.2 to move down independently, so that the PET sheet is bent and deformed on both sides to peel off the excess sheet;

[0059] 4. Send start / stop commands to conveyor line 13 to control the conveying action of the unloading tray 10.

[0060] The control system uses a PLC controller for hardware connections.

[0061] The PLC controller is connected via cables to: the motor driver of the y-direction movement module 3; the servo controller of the z-direction movement module 5; the solenoid valve group of the slide cylinder 8; the frequency converter of the conveyor line 13; and the vacuum generator pressure sensor of the suction cup 7.

[0062] Example of work process:

[0063] After the PET sheet stack is placed on the feeding tray 9:

[0064] The PLC controller controls the y-direction moving module 3 to drive the crossbeam 4 to move above the picking tray, and the z-direction moving module 5 drives the suction cup cylinder connecting plate 6 to descend to contact the PET sheet.

[0065] The first suction cup 7.1 and the second suction cup 7.2 simultaneously draw a vacuum to adsorb the PET sheet. When the adsorbed PET sheet rises to 100mm, the slide cylinders 8 on both sides of the suction cup cylinder connecting plate move downward, driving the circular suction cups 7 on both sides of the slide cylinder 8 to move downward. The PET sheet bends inward on both sides, peeling off the adsorbed PET sheet, leaving only the top layer of adsorbed PET sheet. The peeled PET sheet falls back onto the picking tray 9. The adsorbed PET sheet moves upward again by 300mm along the z-direction module 5.

[0066] The z-direction moving module 5 lifts the suction cup assembly to the set height. At this time, the slide cylinder 8 pushes the second suction cup 7.2 down, forcing the PET sheet to bend and deform downwards on both sides. The lower sheet material falls back due to deformation and detaches from the suction force.

[0067] The crossbeam 4 carries a single PET sheet to the top of the feeding tray 10, and the Z-direction moving module 5 descends to release the sheet to the feeding tray 10;

[0068] Conveyor line 13 starts and transports the material tray 10 to the next station.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for automatically adsorbing PET sheets and placing them on a conveyor line as required, characterized in that, include: Feeding tray (9) is used to hold PET sheets; A conveyor line (13) is provided on one side of the feeding tray (9), and a feeding tray (10) is provided on the conveyor line (13) for conveying and placing PET sheets; The suction cup gripper mechanism is located above the pick-up tray (9) and the conveyor line (13) and is used to pick up PET sheets and transfer them from the pick-up tray (9) to the discharge tray (10).

2. The device for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 1, is characterized in that, The suction cup gripper mechanism includes: At least 4 suction cups (7). Two first suction cups (7.1) are located in the middle part to adsorb the middle part of the PET sheet; Two second suction cups (7.2) are located on both sides and are mounted on the slide cylinder (8). The slide cylinder (8) drives the second suction cups (7.2) to move independently in the vertical direction to adsorb the two sides of the PET sheet and make it bend and deform.

3. The device for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 2, is characterized in that, The suction cup gripper mechanism also includes: The suction cup cylinder connecting plate (6) is a rectangular plate with a length at least equal to the length of the PET sheet being adsorbed. Two first suction cups (7.1) are symmetrically arranged on both sides of the middle part of the suction cup cylinder connecting plate (6); Two slide cylinders (8) are symmetrically arranged at both ends of the suction cup cylinder connecting plate (6).

4. The device for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 3, is characterized in that, The suction cup cylinder connecting plate (6) has cylinder mounting plates (11) fixed at both ends. The slide cylinder (8) is fixed on one side of the cylinder mounting plate (11) and the suction cup mounting plate (12) is fixed on the other side of the slide cylinder (8). The second suction cup (7.2) is fixed on the suction cup mounting plate (12).

5. The apparatus for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 4, is characterized in that, The suction cup cylinder connecting plate (6) is fixed in the middle on the z-direction moving module (5) to make the suction cup cylinder connecting plate (6) move vertically; The z-direction moving module (5) is installed in the middle of the crossbeam (4), and the crossbeam (4) is set on the y-direction moving module (3) to drive the z-direction moving module (5) to move from above the material pick-up plate (9) to above the conveyor line (13).

6. The apparatus for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 5, is characterized in that, The y-direction moving module (3) is installed on the gantry column (2), the gantry column (2) and the material picking plate (9) are installed on the large plate (1), and the conveyor line (13) passes through the upper side of the large plate (1).

7. The apparatus for automatically adsorbing PET sheets and placing them on a conveyor line as required, according to claim 6, is characterized in that, It also includes a control system, which is connected to the drive unit of the y-direction moving module (3), the z-direction moving module (5), the slide cylinder (8) and the conveyor line (13); The control system is configured to drive the components to perform the following operations: The module (3) moves in the y direction and sends a movement command to drive the crossbeam (4) to move horizontally between the picking tray (9) and the discharging tray (10); The module (5) moves in the z direction and sends a lifting command to drive the suction cup cylinder connecting plate (6) to move vertically, so as to realize the adsorption and release of the PET sheet by the suction cup (7); Send a telescopic command to the slide cylinder (8) to drive the second suction cup (7.2) to move down independently, so that the PET sheet bends and deforms on both sides to peel off the excess sheet; Send start / stop commands to the conveyor line (13) to control the conveying action of the feeding tray (10).

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