Plate suction machine with automatic feeding function

Abstract

The utility model relates to the technical field of mechanical automation, in particular to a plate suction machine with an automatic feeding function. The plate feeding device comprises a rack, a discharging platform installed on the rack and used for containing plates and a transferring mechanism installed on the rack, the transferring mechanism can ascend and descend up and down and move horizontally above the discharging platform, and a suction cup mechanism is installed at the lower end of the transferring mechanism and comprises an installation block and a plurality of suction cup supports installed on the installation block. A distance adjusting mechanism capable of enabling the suction cup support to drive the suction cup to be close to or far away from the installation block is arranged between the suction cup support and the installation block, and a platform lifting mechanism capable of automatically ascending to adjust the position along with reduction of the plates is arranged at the lower end of the discharging platform. After the prior art is improved, the position of each suction cup can be independently adjusted, and the adjusting range is wider; the discharging platform can automatically ascend to adjust the position along with reduction of the plates, it is guaranteed that the lifting stroke of the suction cup is fixed, and the material taking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to a suction plate machine for automatic feeding. Background Art

[0002] In the prior art, a suction cup mechanism is usually adopted in a sheet material feeding machine, and the workpiece is adsorbed and fixed by the adsorption force generated by the suction cup to realize feeding.

[0003] For example, a Chinese patent document with the authorization number CN216189313U discloses a sheet material feeding mechanism, which includes a material suction component capable of lifting up and down and moving horizontally, a material rack for stacking sheet materials, and a processing station. The material suction component includes a mounting rack, a plurality of material suction parts and a material shaking part; the plurality of material suction parts are divided into a first material suction group, a second material suction group and a third material suction group, the second material suction group is arranged between the first material suction group and the third material suction group, a longitudinally arranged lead screw and a guide rail are arranged on the mounting rack, the thread directions at both ends of the lead screw are opposite, and a first nut and a second nut are arranged at both ends of the lead screw and are matched with the lead screw. By manually rotating the lead screw, the distance between the first material suction group and the third material suction group can be adjusted, and a certain adjustment can be made according to the size of the sheet material. However, the above-mentioned suction cup position adjustment method can only be adjusted in a single direction, which is not flexible enough and cannot adapt to sheet materials with complex surface structures; in addition, the material rack cannot automatically rise and adjust its position as the sheet materials decrease, resulting in a larger lifting stroke for the material suction component to pick up materials each time, inevitably prolonging the material picking time, and thus the feeding efficiency is low.

[0004] Therefore, it is necessary to improve the deficiencies of the above prior art. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a suction plate machine for automatic feeding in view of the deficiencies of the above prior art, and solve the problems of single and inflexible adjustment direction of the suction cup position and large lifting stroke for material picking and low feeding efficiency in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solution: A suction plate machine for automatic feeding, including a machine frame, a feeding platform installed on the machine frame for placing sheet materials, and a transfer mechanism installed on the machine frame. The transfer mechanism can lift up and down and move horizontally above the feeding platform. A suction cup mechanism is installed at the lower end of the transfer mechanism. The suction cup mechanism includes a mounting block and a plurality of suction cup brackets installed on the mounting block. The lower end of the suction cup bracket is installed with a suction cup, and a distance adjustment mechanism is arranged between the suction cup bracket and the mounting block, which can drive the suction cup bracket to drive the suction cup to approach or move away from the mounting block.

[0007] With the above technical solution, when it is necessary to adjust the position of a certain suction cup to adapt to the plate, the distance adjustment mechanism at the suction cup support corresponding to the suction cup is used to drive the suction cup support to drive the suction cup to approach or move away from the mounting block, so as to change the position of the suction cup; not only can the position of each suction cup be adjusted according to needs, so it is relatively flexible and can adapt to various plates with complex surface structures.

[0008] The further setting of the above technical solution is: the distance adjustment mechanism includes a strip-shaped hole provided on the suction cup support and extending away from the suction cup, and an internal thread hole provided on the periphery of the mounting block. A fastening bolt is provided in the internal thread hole and is threadedly connected thereto. A clamping plate is provided between the fastening bolt and the suction cup support. A through hole corresponding to the internal thread hole is provided on the clamping plate. The screw rod of the fastening bolt passes through the corresponding through hole and the strip-shaped hole, and its nut abuts against the clamping plate.

[0009] With the above technical solution, when adjusting the position of a certain suction cup, first loosen the fastening bolt at the corresponding suction cup support, the clamping plate and the mounting block no longer clamp the suction cup support, then move the suction cup support so that the strip-shaped hole moves or rotates relative to the internal thread hole, and the suction cup support drives the suction cup to the required position, and then tighten the fastening bolt to re-fasten the mounting block, the suction cup support and the clamping plate, thus completing an adjustment of the suction cup position.

[0010] The further setting of the above technical solution is: the suction cup support is set to be curved, and the strip-shaped hole is set to be arc-shaped.

[0011] With the above technical solution, the suction cup support and the strip-shaped hole are bent, which can avoid mutual interference between adjacent suction cup supports and further expand the adjustment range of the suction cup.

[0012] The further setting of the above technical solution is: a platform lifting mechanism is provided at the lower end of the blanking platform, which can automatically rise and adjust the position as the plate decreases.

[0013] With the above technical solution, through the platform lifting mechanism, the blanking platform can automatically rise and adjust the position as the plate decreases, so as to keep the stroke unchanged when the transfer mechanism drives the suction cup mechanism to lift, that is, to ensure that the lifting stroke of the suction cup is fixed, thereby improving the efficiency of material taking.

[0014] The further setting of the above technical solution is: the platform lifting mechanism includes a platform support installed on the frame, a lifting connecting piece connected to the blanking platform, a ball screw that is in screw drive with the lifting connecting piece, and a lifting drive motor that drives the ball screw to rotate. The ball screw and the lifting drive motor are both installed on the frame.

[0015] With the above technical solution, the lifting drive mechanism drives the ball screw to rotate. The ball screw drives the lifting connecting piece to move up and down through screw drive, so that the lifting connecting piece can drive the material placing platform to move up and down.

[0016] The further setting of the above technical solution is as follows: Synchronous pulleys are provided at one end of the rotating shaft of the lifting drive motor and the ball screw respectively. The two synchronous pulleys are driven by a synchronous belt. Both ends of the ball screw are rotatably connected to fixed rods installed on the frame. On both sides of the ball screw, the fixed rods are provided with lifting guide rails slidably connected to the lifting connecting piece. A ball nut that is in screw drive with the ball screw is installed on the lifting connecting piece.

[0017] With the above technical solution, the lifting drive motor drives the synchronous pulley to rotate through synchronous belt drive, driving the ball screw to rotate. The ball screw and the ball nut are in screw drive, which can drive the lifting connecting piece to move up and down. The setting of the lifting guide rail can make the lifting connecting piece move up and down more stably and smoothly.

[0018] The further setting of the above technical solution is as follows: A plate position photoelectric sensor for detecting whether the plate reaches the predetermined position is provided at the upper end of the platform support. An upper limit switch for triggering and sensing the upper limit position when the material placing platform rises and a lower limit switch for triggering and sensing the lower limit position when the material placing platform descends are also provided on one side of the platform support.

[0019] With the above technical solution, the control system can control the opening and closing of the lifting drive motor by detecting the position information of the plate through the plate position photoelectric sensor, and the lifting range of the material placing platform can be limited by the upper limit switch and the lower limit switch.

[0020] The further setting of the above technical solution is as follows: The transfer mechanism includes fixing plates installed at both ends of the frame, a transfer screw rod whose two ends are respectively rotatably connected to the fixing plates, a transfer drive motor for driving the transfer screw rod to rotate, a movable stage in screw drive with the transfer screw rod. A lifting cylinder is provided at the lower end of the movable stage. The movable end of the lifting cylinder is fixedly connected to the upper end of the mounting block. Transfer guide rails slidably connected to the movable stage are also provided between the two fixing plates at both ends of the transfer screw rod.

[0021] With the above technical solution, when it is necessary to grab the sheet to the working position, start the transfer drive motor to drive the transfer lead screw to rotate. Through screw drive, the movable stage moves horizontally above the feeding platform. Then, start the lifting cylinder, and the movable end of the lifting cylinder extends to drive the mounting block, that is, drive the suction cup mechanism to descend until it abuts against the sheet on the feeding platform. Then, start the vacuum suction cup to suck the sheet. After that, the movable end of the lifting cylinder retracts, driving the suction cup and the sheet to rise to the initial position. Then, the transfer drive motor rotates in the reverse direction, driving the movable stage to move horizontally in the reverse direction to the working area. After the movable end of the lifting cylinder extends to the predetermined position again, turn off the vacuum suction cup so that it no longer adsorbs the sheet. At this time, the sheet falls off. Then, the movable end of the lifting cylinder retracts to the initial position, and a transfer and feeding operation of the sheet is completed.

[0022] The further setting of the above technical solution is: a track connection table installed on the frame is provided on one side of the feeding platform under the transfer mechanism. The track connection table includes a movable track and a fixed track. There are two pitch-adjusting lead screws that are interconnected and in screw drive with the movable track between the movable track and the fixed track. One end of one of the pitch-adjusting lead screws is connected to a hand crank that can drive the pitch-adjusting lead screw. Connecting photoelectric sensors are provided at both ends of the fixed track.

[0023] With the above technical solution, by setting the track connection table, the transferred sheet can be conveyed to the equipment of the next processing procedure, thus realizing the function of automatic feeding; when it is necessary to adjust the distance between the tracks of the track connection table according to the size of the sheet, rotate the hand crank to drive the pitch-adjusting lead screw to rotate, and then drive the movable track to approach or move away from the fixed track, realizing the function of adjusting the distance, so that different sizes of sheets can be adapted.

[0024] The further setting of the above technical solution is: a control panel for setting relevant control parameters is also provided on the frame.

[0025] With the above technical solution, various relevant control parameters can be conveniently modified and adjusted through the control panel.

[0026] The beneficial effects achieved by the present utility model are: the position of each suction cup can be adjusted independently and the adjustment range is wider; the feeding platform can automatically rise and adjust the position as the sheet decreases, ensuring that the lifting stroke of the suction cup is fixed, thereby improving the material taking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the internal layout in an embodiment of the present utility model;

[0029] Figure 3 is a schematic structural diagram of the transfer mechanism in an embodiment of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the suction cup mechanism in an embodiment of the present utility model;

[0031] Figure 5 is a schematic structural diagram of the platform lifting mechanism in an embodiment of the present utility model;

[0032] Figure 6 is a schematic structural diagram of the platform lifting mechanism in an embodiment of the present utility model;

[0033] Figure 7 is a schematic structural diagram of the track connection platform in an embodiment of the present utility model. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] As Figure 1-3 shown in

[0036] As Figure 2 、 5, as shown in FIGS. 6, a platform lifting mechanism 6 capable of automatically rising and adjusting its position as the sheet material decreases is provided at the lower end of the feeding platform 2. The platform lifting mechanism 6 includes a platform bracket 60 installed on the frame 1, a lifting connecting member 61 connected to the feeding platform 2, a ball screw 62 in screw drive with the lifting connecting member 61, and a lifting drive motor 63 for driving the rotation of the ball screw 62. Both the ball screw 62 and the lifting drive motor 63 are installed on the frame 1; synchronous pulleys 64 are provided at one end of the rotating shaft of the lifting drive motor 63 and one end of the ball screw 62, and the two synchronous pulleys 64 are driven by a synchronous belt. Both ends of the ball screw 62 are rotatably connected to fixed rods 65 installed on the frame 1. Lifting guide rails 66 for sliding connection with the lifting connecting member 61 are provided on both sides of the ball screw 62 on the fixed rods 65. A ball nut in screw drive with the ball screw 62 is installed on the lifting connecting member 61; a sheet position photoelectric sensor 67 for detecting whether the sheet material reaches a predetermined position is provided at the upper end of the platform bracket 60. An upper limit switch 68 for triggering and sensing the upper limit position when the feeding platform 2 rises and a lower limit switch 69 for triggering and sensing the lower limit position when the feeding platform 2 descends are also provided on one side of the platform bracket 60.

[0037] As Figure 4 shown in FIGS., the transfer mechanism 3 includes fixing plates 30 installed at both ends of the frame 1, a transfer screw 31 rotatably connected to the fixing plates 30 at both ends, a transfer drive motor 32 for driving the rotation of the transfer screw 31, and a movable stage 33 in screw drive with the transfer screw 31. A lifting cylinder 34 is provided at the lower end of the movable stage 33, and the movable end of the lifting cylinder 34 is fixedly connected to the upper end of the mounting block 41. Transfer guide rails 35 for sliding connection with the movable stage 33 are also provided between the two fixing plates 30 at both ends of the transfer screw 31.

[0038] As Figure 2 , 7 shown in FIGS., a track connection table 7 installed on the frame 1 is provided on one side of the feeding platform 2 below the transfer mechanism 3. The track connection table 7 includes a movable track 71 and a fixed track 72. Two distance adjustment screws 73 that are interlocked with each other and in screw drive with the movable track 71 are provided between the movable track 71 and the fixed track 72. One end of one of the distance adjustment screws 73 is connected to a hand crank 74 capable of driving the distance adjustment screw 73. Connection photoelectric sensors 75 are provided at both ends of the fixed track 72.

[0039] As Figure 1 shown in FIGS., a control panel 8 for setting relevant control parameters is also provided on the frame 1.

[0040] In the above embodiments, when it is necessary to adjust the position of a certain suction cup 43 to fit the plate, first loosen the fastening bolt 53 at the suction cup bracket 42 whose position needs to be adjusted. The clamping plate 54 and the mounting block 41 no longer clamp the suction cup bracket 42. Then move the suction cup bracket 42 so that the strip-shaped hole 51 moves or rotates relative to the internal thread hole 52. The suction cup bracket 42 drives the suction cup 43 to the required position. Then tighten the fastening bolt 53 to re-fasten the mounting block 41, the suction cup bracket 42, and the clamping plate 54, thus completing an adjustment of the position of the suction cup 43. With the above technical solution, the position of each suction cup 43 can be adjusted according to needs, so it is relatively flexible and can adapt to various plates with complex surface structures. The feeding platform 2 can be automatically raised and adjusted in position as the plate decreases through the platform lifting mechanism 6, so as to keep the stroke unchanged when the transfer mechanism 3 drives the suction cup mechanism 4 to lift and lower, that is, to ensure that the lifting stroke of the suction cup 43 is fixed, thereby improving the material taking efficiency.

Claims

1. An automatic feeding plate suction machine, comprising a frame, a material discharging platform mounted on the frame for placing plates, and a transfer mechanism mounted on the frame, wherein the transfer mechanism can be lifted up and down and moved horizontally above the material discharging platform, and a suction cup mechanism is installed at the lower end of the transfer mechanism, characterized in that: The suction cup mechanism comprises a mounting block and a plurality of suction cup brackets mounted on the mounting block, a suction cup is mounted on the lower end of the suction cup bracket, and a distance adjustment mechanism is provided between the suction cup bracket and the mounting block, which can enable the suction cup bracket to drive the suction cup to approach or move away from the mounting block.

2. The automatic feeding plate suction machine according to claim 1, characterized in that: The distance adjustment mechanism includes a strip hole arranged on the suction cup bracket and extending away from the suction cup, and an internal threaded hole arranged on the periphery of the mounting block, a fastening bolt threadedly connected to the internal threaded hole is arranged in the internal threaded hole, a clamping plate is arranged between the fastening bolt and the suction cup bracket, and a through hole corresponding to the internal threaded hole is arranged on the clamping plate, the screw of the fastening bolt passes through the corresponding through hole and the strip hole, and its nut abuts against the clamping plate.

3. The automatic feeding plate suction machine according to claim 2, characterized in that: The suction cup bracket is arranged in a curved shape, and the strip-shaped hole is arranged in an arc shape.

4. An automatic feeding plate suction machine according to any one of claims 1 to 3, characterized in that: The lower end of the unloading platform is provided with a platform lifting mechanism which can automatically rise and adjust the position as the plate decreases.

5. The automatic feeding plate suction machine according to claim 4, characterized in that: The platform lifting mechanism includes a platform bracket installed on the frame, a lifting connection piece connected to the material discharge platform, a ball screw screwed with a spiral transmission to the lifting connection piece, and a lifting drive motor driving the ball screw to rotate. The ball screw and the lifting drive motor are both installed on the frame.

6. The automatic feeding plate suction machine according to claim 5, characterized in that: The rotating shaft of the lifting drive motor and one end of the ball screw are both provided with synchronous wheels, and the two synchronous wheels are driven by a synchronous belt. Both ends of the ball screw are rotatably connected to fixed rods installed on the frame. The fixed rods are provided with lifting guide rails slidably connected to the lifting connecting piece on both sides of the ball screw, and the lifting connecting piece is installed with a ball nut that is spirally driven with the ball screw.

7. The automatic feeding plate suction machine according to claim 6, characterized in that: A plate position photoelectric sensor is provided at the upper end of the platform bracket for detecting whether the plate has reached the predetermined position. An upper limit switch is also provided on one side of the platform bracket for triggering the upper limit position when the inductive discharge platform rises, and a lower limit switch is provided for triggering the lower limit position when the inductive discharge platform descends.

8. The automatic feeding plate suction machine according to claim 7, characterized in that: The transfer mechanism includes fixed plates installed at both ends of the frame, transfer screws rotatably connected to the fixed plates at both ends, a transfer drive motor that drives the transfer screw to rotate, and a movable carrier that is spirally driven by the transfer screw. A lifting cylinder is provided at the lower end of the movable carrier, and the movable end of the lifting cylinder is fixedly connected to the upper end of the mounting block. A transfer guide rail that is slidably connected to the movable carrier is also provided between the two fixed plates and at both ends of the transfer screw.

9. The automatic feeding plate suction machine according to claim 8, characterized in that: A track docking platform installed on a frame is provided below the transfer mechanism and on one side of the unloading platform. The track docking platform includes a movable rail and a fixed rail. Two adjustable distance screws that are linked to each other and spirally driven with the movable rail are provided between the movable rail and the fixed rail. One end of one of the adjustable distance screws is connected to a hand crank that can drive the adjustable distance screw.

10. The automatic feeding plate suction machine according to claim 9, characterized in that: The frame is also provided with a control panel for setting relevant control parameters.

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