A transport buffer device and a buffer method thereof

Abstract

The present invention relates to the technical field of conveying equipment, and in particular to a conveying buffer device and a buffer method thereof, wherein the conveying buffer device comprises a cargo pallet, a first conveyor belt for inputting the cargo pallet, a first bidirectional sorting conveyor, a second conveyor belt, a second bidirectional sorting conveyor arranged on one side of the first bidirectional sorting conveyor, a cargo collecting rack and a cargo buffer mechanism. When there are too many flanges on the second conveyor belt, the first bidirectional sorting conveyor transports the flanges backwards to the second bidirectional sorting conveyor, and the second bidirectional sorting conveyor transports the flanges backwards to the cargo buffer mechanism for buffering. The cargo buffer mechanism stacks the input flanges on the surface of a built-in third conveyor belt in sequence. When the flanges need to be output, the cargo buffer mechanism outputs the flanges in sequence to the second bidirectional sorting conveyor. The present invention can buffer excessive flanges during the conveying process.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a conveying buffer device and a buffer method thereof. Background Art

[0002] In a continuous production line, the conveyor belt keeps running. When there are too many goods at the output end of the conveyor belt and the back-end process cannot handle them in time, a blocking mechanism is usually used to block and intercept the goods on the conveyor belt. The goods will stay on the conveyor belt and be moved away manually. However, for flange production lines, due to the weight of the flange and its large length and width, if the flange is blocked, the subsequent flange will collide with the previous flange, causing damage to the flange. In addition, the flange is heavy and difficult to carry. Based on this, a special cache device for flange production lines is designed. Summary of the invention

[0003] Therefore, in view of the above-mentioned problem, the present invention proposes a conveying buffer device and a buffer method thereof, which can buffer excessive flanges during the conveying process.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A conveying and caching device comprises a cargo pallet, a first conveyor belt for inputting the cargo pallet, a first bidirectional sorting conveyor, a second conveyor belt, a second bidirectional sorting conveyor arranged on one side of the first bidirectional sorting conveyor, a cargo collecting rack arranged on the right side of the second bidirectional sorting conveyor, and a cargo caching mechanism arranged on the rear side of the second bidirectional sorting conveyor, wherein the cargo caching mechanism comprises a cargo caching rack, a third conveyor belt arranged in the middle of the cargo caching rack, a cargo conveying rack arranged at the bottom of the third conveyor belt, a first supporting plate arranged on the left and right sides of the cargo caching rack, a movable plate arranged above the first supporting plate at intervals, and a movable plate for driving the movable plate to move up and down A first driving cylinder, hinge seats arranged on the front and rear sides of the first support plate, an L-shaped clamp rotatably arranged on each hinge seat, a guide frame arranged on the top of the cargo cache rack, a rotating wheel rotatably arranged on the top of the L-shaped clamp and fitted with one side of the guide frame, a first torsion spring arranged between the guide frame and the L-shaped clamp, a second driving cylinder arranged in the middle of the cargo cache rack and used to pass the third conveyor belt, and a suction cup arranged on the top of the second driving cylinder, the rear end of the cargo conveying rack is rotatably connected to the cargo cache rack, the cargo cache rack is provided with a second support plate below the third conveyor belt, and the second support plate is provided with a third driving cylinder for driving the front end of the third conveyor belt to rise and fall.

[0006] Furthermore, a first mechanical arm for transferring the flange to the top surface of the first conveyor belt is provided at intervals on one side of the first conveyor belt.

[0007] Furthermore, a second robotic arm is provided between the second bidirectional sorting conveyor and the cargo collecting rack.

[0008] Furthermore, the first drive cylinder, the second drive cylinder and the third drive cylinder are pneumatic cylinders or electric push rods.

[0009] Based on the same inventive concept, the present invention also proposes a transport cache method, comprising the following steps:

[0010] In the first step, the first conveyor belt conveys the cargo pallet equipped with the flange, and after reaching the first bidirectional sorting conveyor, when there are too many flanges on the second conveyor belt and it cannot be transported, the first bidirectional sorting conveyor transports the flanges backward to the second bidirectional sorting conveyor, and the second bidirectional sorting conveyor transports the flanges backward to the cargo buffer mechanism for buffering;

[0011] In the second step, the second bidirectional sorting conveyor conveys the flange to the front of the cargo buffer rack, and the built-in push rod of the third driving cylinder descends to drive the front end of the third conveyor belt to descend. The height of the front end of the third conveyor belt will be consistent with that of the second bidirectional sorting conveyor, and the second bidirectional sorting conveyor conveys the flange to the third conveyor belt;

[0012] The third step, when a new flange needs to be input, the built-in push rod of the second drive cylinder rises to the cargo pallet at the bottom of the flange, and then the suction cup absorbs the bottom surface of the cargo pallet. After completion, the built-in push rod of the second drive cylinder continues to rise. After the cargo pallet moves upward, the first drive cylinder drives the movable plate to move upward, and the hinge seats and L-shaped fixtures on the front and rear sides of the movable plate will also move upward at the same time. After the L-shaped fixture rises, since the width between the guide frames gradually narrows from bottom to middle, a rotating wheel on one side of the L-shaped fixture contacts the guide frame, and the L-shaped fixture will rotate toward the cargo pallet position. After the L-shaped fixture rotates, it will be stuck between the cargo pallets to support the cargo pallet. After completion, the top suction cup of the second drive cylinder no longer absorbs the bottom surface of the cargo pallet, the built-in push rod of the second drive cylinder descends, the first drive cylinder drives the movable plate to descend, and the movable plate drives the hinge seat and the L-shaped fixture to descend. Under the action of the first torsion spring, the L-shaped fixture rotates toward the guide frame, and the L-shaped fixture will no longer contact and support the two sides of the top cargo pallet. The first input cargo pallet will fit on the top surface of the later input cargo pallet, so as to repeatedly input multiple cargo pallets.

[0013] In the fourth step, when the cargo pallet in the cargo cache rack needs to be output, the first driving cylinder drives the movable plate to move upward, and the hinge seats on the front and rear sides of the movable plate and the L-shaped clamps rise to clamp the two sides of the second cargo pallet on the third conveyor belt. As the first driving cylinder continues to rise, since the middle to the top of the guide frame are parallel edges with the same spacing, the rotating wheel on one side of the L-shaped clamp will fit on one side of the guide frame and continue to move upward. The L-shaped clamp will drive the second cargo pallet to rise and separate from the cargo pallet on the top surface of the third conveyor belt and no longer fit. At this time, the third conveyor belt will output the surface cargo pallet to the second two-way sorting conveyor.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are:

[0015] The conveying buffer device and the buffering method thereof can buffer excessive flanges during the conveying process. Specifically, through the setting of the cargo buffering mechanism, when there are too many flanges on the second conveyor belt and they cannot be conveyed, the first two-way sorting conveyor conveys the flanges backward to the second two-way sorting conveyor, and the second two-way sorting conveyor conveys the flanges backward to the cargo buffering mechanism for buffering, and the cargo buffering mechanism stacks the input flanges on the surface of the built-in third conveyor belt in sequence, and when the flanges need to be output, the cargo buffering mechanism outputs the flanges in sequence to the second two-way sorting conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the transport buffer device.

[0017] Figure 2 It is a schematic top view of the local structure of the conveying and buffering device.

[0018] Figure 3 It is a left view schematic diagram of the partial structure of the cargo collection rack of the conveying and buffering device.

[0019] Figure 4 It is a schematic diagram of the partial structure of the cargo collection rack of the conveying and buffering device.

[0020] Figure 5 It is a schematic front view of the partial structure of the cargo collection rack of the conveying and buffering device.

[0021] Figure 6 It is a front view schematic diagram of the first mechanical arm structure of the conveying and caching device.

[0022] Figure 7 It is a right view schematic diagram of the first mechanical arm structure of the conveying and buffering device.

[0023] Figure 8 It is a schematic top view of the clamping device structure of the conveying and buffering device.

[0024] Fig. 9It is a schematic structural plan view of the driving gear and the driven gear of the conveying buffer device in the use state.

[0025] Fig.10 It is a schematic top view of the partial structure of the clamping device of the conveying and buffering device.

[0026] Fig.11 This is a schematic diagram of the front view structure of the clamping device of the conveying and buffering device.

[0027] Fig.12 This is a schematic diagram of the structure of the clamping device of the conveying and buffering device from the rear perspective.

[0028] Fig.13 It is a schematic front view of the partial structure of the clamping device of the conveying and buffering device.

[0029] Fig.14 It is a front view schematic diagram of the cargo collection rack structure of the conveying and buffering device.

[0030] Fig.15 It is a left view schematic diagram of the cargo collection rack structure of the conveying and buffering device.

[0031] Fig.16 It is a schematic diagram of the internal structure of the cargo collection rack of the conveying and buffering device.

[0032] Numbers in the figure:

[0033] 1. Cargo pallet; 2. First conveyor belt; 3. First bidirectional sorting conveyor; 4. Second conveyor belt; 5. Second bidirectional sorting conveyor; 6. Cargo collection rack; 7. Cargo caching mechanism; 8. First robotic arm; 9. Flange conveyor belt; 10. Second robotic arm;

[0034] 601, connecting frame; 602, square hole; 603, first vertical slot; 604, second vertical slot; 605, first limiting plate; 606, first spring; 607, horizontal plate; 608, first mounting block; 609, second limiting plate; 610, second spring; 611, first rotating plate; 612, first lower supporting block; 613, first connecting line; 614, first middle hole; 615, second mounting block; 616, third limiting plate; 617, third spring; 618, second rotating plate; 619, second lower supporting block; 620, second connecting line; 621, second middle hole; 622, second torsion spring; 623, rubber pad;

[0035] 701, cargo buffer rack; 702, third conveyor belt; 703, cargo conveyor rack; 704, first support plate; 705, moving plate; 706, first drive cylinder; 707, hinge seat; 708, L-shaped clamp; 709, guide frame; 710, rotating wheel; 711, first torsion spring; 712, second drive cylinder; 713, suction cup; 714, second support plate; 715, third drive cylinder;

[0036] 8001, base; 8002, first driving device; 8003, first rotating arm; 8004, second driving device; 8005, second rotating arm; 8006, third driving device; 8007, clamping device; 8008, fourth driving device;

[0037] 81. Connecting seat; 82. Driving gear; 83. First motor; 84. Driven gear; 85. Screw rod; 86. Guide rod; 87. Clamping block;

[0038] 801, connecting block; 802, guide column; 803, first rack; 804, rotating shaft; 805, first gear; 806, second gear; 807, guide cylinder; 808, second rack; 809, connecting column; 810, connecting seat; 811, limit block; 812, baffle; 813, first elastic member; 814, rubber block; 815, plate groove; 816, anti-fall plate; 817, second elastic member. DETAILED DESCRIPTION

[0039] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0040] refer to Figures 1 to 16The present embodiment provides a conveying and caching device, comprising a cargo pallet 1, a first conveyor belt 2 for inputting the cargo pallet 1, a first bidirectional sorting conveyor 3, a second conveyor belt 4, a second bidirectional sorting conveyor 5 arranged on one side of the first bidirectional sorting conveyor 3, a cargo collecting rack 6 arranged on the right side of the second bidirectional sorting conveyor 5, and a cargo caching mechanism 7 arranged on the rear side of the second bidirectional sorting conveyor 5, wherein the cargo caching mechanism 7 comprises a cargo caching rack 701, a third conveyor belt 702 arranged in the middle of the cargo caching rack 701, a cargo conveying rack 703 arranged at the bottom of the third conveyor belt 702, a first supporting plate 704 arranged on the left and right sides of the cargo caching rack 701, a movable plate 705 arranged at intervals above the first supporting plate 704, a first driving cylinder 706 for driving the movable plate 705 to move up and down, and a movable plate 706 arranged at the first supporting plate 704. Hinge seats 707 on the front and rear sides of the support plate 704, L-shaped clamps 708 rotatably arranged on each hinge seat 707, a guide frame 709 arranged on the top of the cargo cache rack 701, a rotating wheel 710 rotatably arranged on the top of the L-shaped clamp 708 and fitted with one side of the guide frame 709, a first torsion spring 711 arranged between the guide frame 709 and the L-shaped clamp 708, a second driving cylinder 712 arranged in the middle of the cargo cache rack 701 and used to pass the third conveyor belt 702, and a suction cup 713 arranged on the top of the second driving cylinder 712, the rear end of the cargo conveyor rack 703 is rotatably connected to the cargo cache rack 701, the cargo cache rack 701 is located below the third conveyor belt 702 and is provided with a second support plate 714, and the second support plate 714 is provided with a third driving cylinder 715 for driving the front end of the third conveyor belt 702 to rise and fall.

[0041] The first drive cylinder 706, the second drive cylinder 712 and the third drive cylinder 715 are air cylinders or electric push rods, which are all existing general mechanisms and are conducive to bulk purchase.

[0042] The first bidirectional sorting conveyor 3 and the second bidirectional sorting conveyor 5 mentioned in this application have disclosed the structural principles of the bidirectional sorting conveyor in the roller bidirectional sorting machine disclosed in Chinese Patent Publication No. CN201634217U, which is the prior art, so this application will not repeat it.

[0043] The first conveyor belt 2 conveys the cargo pallet 1 equipped with the flange, and after reaching the first bidirectional sorting conveyor 3, when there are too many flanges on the second conveyor belt 4 and it cannot be transported, the first bidirectional sorting conveyor 3 transports the flanges backwards to the second bidirectional sorting conveyor 5, and the second bidirectional sorting conveyor 5 transports the flanges backwards to the cargo buffer mechanism 7 for buffering.

[0044] The second bidirectional sorting conveyor 5 transports the flange to the front of the cargo cache rack 701, and the built-in push rod of the third driving cylinder 715 descends to drive the front end of the third conveyor belt 702 to descend. The height of the front end of the third conveyor belt 702 will be consistent with that of the second bidirectional sorting conveyor 5, and the second bidirectional sorting conveyor 5 transports the flange to the third conveyor belt 702.

[0045] When the flange needs to be input again, the built-in push rod of the second driving cylinder 712 rises to the cargo pallet 1 at the bottom of the flange, and then the suction cup 713 absorbs the bottom surface of the cargo pallet 1. After completion, the built-in push rod of the second driving cylinder 712 continues to rise. After the cargo pallet 1 moves upward, the first driving cylinder 706 drives the movable plate 705 to move upward, and the hinge seats 707 and L-shaped clamps 708 on the front and rear sides of the movable plate 705 will also move upward at the same time. After the L-shaped clamp 708 rises, due to the gradual narrowing of the width between the guide frames 709 from bottom to middle, the rotating wheel 710 on one side of the L-shaped clamp 708 contacts the guide frame 709, and the L-shaped clamp 708 will rotate toward the position of the cargo pallet 1. After rotating, the L-shaped clamp 708 will be stuck between the cargo pallets 1 to support the cargo pallet 1. After completion, the top suction cup 713 of the second driving cylinder 712 will no longer adsorb the bottom surface of the cargo pallet 1, and the built-in push rod of the second driving cylinder 712 will descend. The first driving cylinder 706 drives the movable plate 705 to descend, and the movable plate 705 drives the hinge seat 707 and the L-shaped clamp 708 to descend. Under the action of the first torsion spring 711, the L-shaped clamp 708 rotates toward the guide frame 709. The L-shaped clamp 708 will no longer provide contact support on both sides of the top cargo pallet 1. The first input cargo pallet 1 will fit on the top surface of the later input cargo pallet 1, so as to repeatedly input multiple cargo pallets 1.

[0046] When the cargo pallet 1 in the cargo buffer rack 701 needs to be output, the first driving cylinder 706 drives the movable plate 705 to move upward, and the hinge seats 707 and L-shaped clamps 708 on the front and rear sides of the movable plate 705 rise to clamp the two sides of the second cargo pallet 1 on the third conveyor belt 702. As the first driving cylinder 706 continues to rise, since the middle to the top of the guide frame 709 are parallel edges with the same spacing, the rotating wheel 710 on one side of the L-shaped clamp 708 will fit on one side of the guide frame 709 and continue to move upward, and the L-shaped clamp 708 will bring The second cargo pallet 1 rises and separates from the cargo pallet 1 on the top of the third conveyor belt 702 and is no longer attached. At this time, the third conveyor belt 702 outputs the surface cargo pallet 1 to the second bidirectional sorting conveyor 5. After completion, the first drive cylinder 706 drives the movable plate 705 to descend, and the L-shaped clamp 708 drives the supported cargo pallet 1 to move down to the surface of the third conveyor belt 702. As it continues to move downward, the L-shaped clamp 708 rotates in the direction of the guide frame 709 and separates from the cargo pallet 1, thereby completing the temporary storage of the cargo pallet 1.

[0047] When the number of flanges on the second conveyor belt 4 is small, the flanges on the cargo buffer mechanism 7 will continue to be transported to the second conveyor belt 4, and unqualified flanges will be directly transported to the cargo collection rack 6 through the second bidirectional sorting conveyor 5 for collection. This mechanism has a faster processing speed, especially compared with the existing two-axis transfer mechanism, it is more efficient, and the flanges are less likely to fall off the cargo pallet 1 during transportation.

[0048] A first mechanical arm 8 for transferring the flange to the top surface of the first conveyor belt 2 is provided at one side of the first conveyor belt 2, and the first mechanical arm 8 includes a base 8001, a first driving device 8002 for driving the base 8001 to rotate, a first rotating arm 8003 rotatably arranged on one side of the base 8001, a second driving device 8004 for driving the first rotating arm 8003 to rotate, a second rotating arm 8005 rotatably arranged on a side of the first rotating arm 8003 away from the base 8001, a third driving device 8006 for driving the second rotating arm 8005 to rotate, a clamping device 8007 arranged on the top of the second rotating arm 8005, and a fourth driving device 8008 for driving the clamping device 8007 to rotate.

[0049] One side of the first robotic arm 8 is provided with a flange conveyor belt 9 for inputting flanges. When the first robotic arm 8 needs to clamp the flange on the flange conveyor belt 9, the first driving device 8002 drives the base 8001 to rotate, so that the second rotating arm 8005 rotates to the direction of the flange conveyor belt 9. After completion, the second driving device 8004 and the third driving device 8006 drive the first rotating arm 8003 and the second rotating arm 8005 to rotate downward, and the clamping device 8007 on one side of the second rotating arm 8005 clamps the flange input by the flange conveyor belt 9. After completion, the second driving device 8004 and the third driving device 8006 drive the first rotating arm 8003 and the second rotating arm 8005 to rotate upward, and the clamping device 8007 moves to a high position, and then the first driving device 8002 drives the base 8001 to rotate. After completion, the clamping device 8007 will rotate to above the first conveyor belt 2, thereby completing the transfer of the flange.

[0050] The clamping device 8007 includes a connecting seat 81 arranged on one side of the second rotating arm 8005, a driving gear 82 rotatably arranged in the connecting seat 81, a first motor 83 for driving the driving gear 82 to rotate, a driven gear 84 rotatably arranged in the connecting seat 81, a screw rod 85 arranged in the middle of the driven gear 84, a guide rod 86 arranged at the front end of the connecting seat 81, and a clamping block 87 cooperating with the lateral sides of the screw rod 85, the driven gear 84 is meshed with the driving gear 82, and the clamping block 87 is slidably connected with the guide rod 86.

[0051] The first motor 83 drives the driving gear 82 to rotate, the driving gear 82 drives the driven gear 84 to rotate, the driven gear 84 drives the screw rod 85 to rotate, the left and right sides of the screw rod 85 have built-in threads in opposite directions, and when rotating, it will drive the clamping blocks 87 on both sides to move toward the middle at the same time, and the clamping blocks 87 are guided to move toward the middle through the guide rod 86, thereby completing the clamping of the flange. When the flange needs to be loosened, the first motor 83 drives the driving gear 82 to rotate in the opposite direction. After the screw rod 85 rotates in the opposite direction, the two clamping blocks 87 will move in opposite directions, thereby clamping and transferring the flange.

[0052] The clamping block 87 includes a connecting block 801, a guide column 802 disposed at the top of the connecting block 801, a first rack 803 slidably disposed in the guide column 802, a rotating shaft 804 rotatably disposed at the top of the connecting block 801, a first gear 805 disposed at the outer side of the rotating shaft 804 and meshing with the first rack 803, a second gear 806 disposed in the middle of the rotating shaft 804, a guide cylinder 807 disposed at the other side of the connecting block 801, a second rack 808 slidably disposed in the middle of the connecting block 801 and meshing with the second gear 806, a connecting column 809 disposed at a side of the second rack 808 away from the second gear 806, and a first gear 805 slidably disposed in the guide cylinder 807. 07, a connecting seat 810 in the body, a limit block 811 arranged at the other side of the connecting block 801 and used for the second rack 808 to pass through, a baffle 812 arranged in the middle of the second rack 808 and fitted with the limit block 811, a first elastic member 813 arranged between the baffle 812 and the connecting block 801, a rubber block 814 arranged on the side of the first rack 803 away from the first gear 805, a plate groove 815 arranged on one side of the connecting block 801, an anti-fall plate 816 slidably arranged in the plate groove 815, and a second elastic member 817 arranged between the top of the anti-fall plate 816 and the second rack 808, the connecting seat 810 is connected to the screw rod 85.

[0053] The clamp block 87 is set, wherein the screw rod 85 drives the connecting seats 810 on the left and right sides to move toward the middle. After the rubber block 814 contacts and clamps the flange in the middle, as the connecting seat 810 continues to be pushed, the connecting seat 810 will shrink into the guide cylinder 807 and push the second rack 808 to move toward the second gear 806. After the second rack 808 moves, it drives the second gear 806 to rotate. The second gear 806 drives the first gear 805 to rotate through the rotating shaft 804. The first gear 805 drives the first rack 803 to move upward. The first rack 803 drives the second gear 806 to rotate. The rubber block 814 on one side moves upward, and the rubber block 814 drives the clamped flange to rise. As the rubber block 814 and the flange rise, there is no obstruction on one side of the anti-fall plate 816. As the second rack 808 moves, the anti-fall plate 816 will be synchronously moved out through the second elastic member 817. When the flange falls accidentally, the anti-fall plate 816 can receive the flange to prevent it from falling. When the flange is transferred to the specified position, the screw rod 85 rotates in the opposite direction. After the two connecting seats 810 move to the left and right sides, under the action of the first elastic member 813, the second The baffle plate 812 on the outer side of the middle part of the rack 808 will be accepted to move in the direction away from the second rack 808, and the connecting seat 810 will slowly move out of the guide cylinder 807. The second rack 808 drives the second gear 806 to rotate in the opposite direction. At the same time, the anti-fall plate 816 is moved into the plate groove 815 through the second elastic member 817. The second gear 806 rotates through the rotating shaft 804 to drive the first gear 805 to rotate. The first gear 805 rotates to drive the first rack 803 to move downward. During the downward movement of the first rack 803, the rubber block 814 is driven to move downward. The rubber block 814 is driven to move downward. 14 drives the flange to move down smoothly until it fits the placement surface, and the connecting seat 810 continues to move, and the rubber block 814 separates from the flange. While the rubber block 814 clamps the flange, an anti-fall plate 816 extends from the bottom to prevent the rubber block 814 from shaking or being unstable during the clamping and conveying process and causing it to fall. The stability of the flange is transferred to the cargo pallet 1. This structure enables the flange to move upward in a way that the bottom surface of the flange will not be damaged due to the forced insertion of the anti-fall plate 816 at the bottom, and it has high applicability and does not require multiple sets of cylinders or motors to cooperate in preventing the flange from falling.

[0054] The cargo collection rack 6 includes a connection frame 601, square holes 602 arranged on both sides of the connection frame 601, a first vertical slot 603 arranged in the square hole 602 and located in the up-down direction, a second vertical slot 604 arranged in the square hole 602 and spaced apart from the first vertical slot 603, a first limiting plate 605 slidably connected to the first vertical slot 603 and the second vertical slot 604, a first spring 606 arranged between the first limiting plate 605 and the bottom of the connection frame 601, a horizontal plate 607 fixedly arranged on the side of the first limiting plate 605 away from the first spring 606, and a detachable plate 608 arranged on the connection frame 601. The first mounting block 608 at the position of the square holes 602 on both sides, the second limiting plate 609 arranged on the top of the first mounting block 608, the second spring 610 arranged between the second limiting plate 609 and the first mounting block 608, the first rotating plate 611 hingedly arranged on the side of the second limiting plate 609 away from the second spring 610, the first lower supporting block 612 fixedly arranged on the side of the second limiting plate 609 away from the second spring 610, the first connecting line 613 arranged between the first rotating plate 611 and the first limiting plate 605, and the second limiting plate 609 provided on the second limiting plate 609 for the first connecting line 613 to pass through. The first central hole 614, a plurality of second mounting blocks 615 detachably disposed in the connecting frame 601, a third limiting plate 616 disposed on the top of the second mounting block 615, a third spring 617 disposed between the third limiting plate 616 and the second mounting block 615, a second rotating plate 618 hingedly disposed on the side of the third limiting plate 616 away from the third spring 617, a second lower supporting block 619 fixedly disposed on the side of the third limiting plate 616 away from the third spring 617, a second connecting line 620 disposed between the second rotating plate 618 and the second limiting plate 609, and a second connecting line 621 disposed on the third limiting plate 616. And a second middle hole 621 for the second connecting line 620 to pass through, the first mounting block 608 and the second mounting block 615 are bolted to the connecting frame 601 on both sides, the third limiting plate 616 and the second limiting plate 609 are slidably connected to the first vertical groove 603 and the second vertical groove 604, and a second torsion spring 622 for rotating the first rotating plate 611 and the second rotating plate 618 by ninety degrees is provided on one side of the second limiting plate 609 and the third limiting plate 616, and the elastic force of the first spring 606, the second spring 610 and the third spring 617 is greater than the elastic force of the second torsion spring 622.

[0055] A second robotic arm 10 is provided between the second bidirectional sorting conveyor 5 and the cargo collection rack 6. When the flange on the second bidirectional sorting conveyor 5 is detected as an unqualified product again and needs to be transferred to the cargo collection rack 6, the second robotic arm 10 transfers the flange on the cargo pallet 1 to the cargo collection rack 6, and the second bidirectional sorting conveyor 5 conveys the cargo pallet 1 to the left, and the first robotic arm 8 returns the cargo pallet 1 to its original position. The second robotic arm 10 has the same structure as the first robotic arm 8. In the initial state, due to the force of the second torsion spring 622, the first rotating plate 611 and the second rotating plate 618 are folded upward by 90 degrees, and the left and right spacing of the first rotating plate 611 and the second rotating plate 618 are The distance between the left and right plates 618 is smaller than the diameter of the hole in the middle of the flange. When the second robotic arm 10 passes through the second rotating plate 618 and the first rotating plate 611 at the top while holding the flange, it will not be blocked. After the flange held by the second robotic arm 10 is placed on the bottom of the connecting frame 601 and contacts the horizontal plate 607, the second robotic arm 10 opens and places the flange on the outside of the horizontal plate 607. Since the flange has a certain weight, the first limiting plate 605 will move downward. The first limiting plate 605 moves downward to pull the first connecting line 613 downward. The first rotating plate 611 on the side of the second limiting plate 609 above is rotated downward by ninety degrees through the first connecting line 613. The second robotic arm 10 When the new flange is clamped and placed in the connecting frame 601, the flange passes through each second rotating plate 618 and is placed on the first rotating plate 611 on one side of the second limiting plate 609. Since the second limiting plate 609 places the new flange, the second limiting plate 609 will move down and contact the first mounting block 608. At the same time, the second connecting line 620 is used to pull the upper second rotating plate 618 downward by ninety degrees. The newly placed flange by the second robotic arm 10 will be stacked on the second rotating plate 618 in sequence to dock with the newly placed Farad disc. When the flange needs to be taken out, the top flange is taken out, and under the action of the third spring 617, the third limiting plate 616 will move upward Move back to the original position, under the action of the second torsion spring 622, the second rotating plate 618 will rotate upward ninety degrees, and when the flange in the first rotating plate 611 needs to be taken out, since the upper second rotating plate 618 automatically flips upward, it will not affect the removal of the flange below, and the flanges can be taken out one by one, which solves the technical problem that the flanges are large and heavy and difficult to be separated and taken out individually when they are stacked up and down. At the same time, compared with some existing devices that pad cargo pallets 1 between flanges, the cargo collection rack 6 is less likely to collapse, and there is no need to place additional cargo pallets 1, resulting in insufficient number of cargo pallets 1 or adding more cargo pallets 1 to occupy space.

[0056] Based on the above-mentioned transport buffer device, a transport buffer method is also proposed, comprising the following steps:

[0057] In the first step, the first conveyor belt 2 conveys the cargo pallet 1 equipped with the flange, and after reaching the first bidirectional sorting conveyor 3, when there are too many flanges on the second conveyor belt 4 and it cannot be transported, the first bidirectional sorting conveyor 3 conveys the flange backward to the second bidirectional sorting conveyor 5, and the second bidirectional sorting conveyor 5 conveys the flange backward to the cargo buffer mechanism 7 for buffering;

[0058] In the second step, the second bidirectional sorting conveyor 5 conveys the flange to the front of the cargo buffer rack 701, and the built-in push rod of the third driving cylinder 715 descends to drive the front end of the third conveyor belt 702 to descend, and the front end height of the third conveyor belt 702 will be consistent with that of the second bidirectional sorting conveyor 5, and the second bidirectional sorting conveyor 5 conveys the flange to the third conveyor belt 702;

[0059] In the third step, when a new flange needs to be input, the built-in push rod of the second driving cylinder 712 rises to the cargo pallet 1 at the bottom of the flange, and then the suction cup 713 absorbs the bottom surface of the cargo pallet 1. After completion, the built-in push rod of the second driving cylinder 712 continues to rise. After the cargo pallet 1 moves upward, the first driving cylinder 706 drives the movable plate 705 to move upward, and the hinge seats 707 and L-shaped clamps 708 on the front and rear sides of the movable plate 705 will also move upward at the same time. After the L-shaped clamp 708 rises, due to the gradual narrowing of the width between the guide frames 709 from bottom to middle, the rotating wheel 710 on one side of the L-shaped clamp 708 contacts the guide frame 709, and the L-shaped clamp 708 will rotate toward the position of the cargo pallet 1. After the rotation, the L-shaped clamp 708 will be stuck between the cargo pallets 1 to support the cargo pallet 1. After completion, the top suction cup 713 of the second driving cylinder 712 will no longer absorb the bottom surface of the cargo pallet 1, and the built-in push rod of the second driving cylinder 712 will drop. The first driving cylinder 706 drives the moving plate 705 to drop, and the moving plate 705 drives the hinge seat 707 and the L-shaped clamp 708 to drop. Under the action of the second torsion spring 622, the L-shaped clamp 708 rotates toward the guide frame 709. The L-shaped clamp 708 will no longer contact and support the two sides of the top cargo pallet 1. The first input cargo pallet 1 will fit on the top surface of the later input cargo pallet 1, so as to repeatedly input multiple cargo pallets 1.

[0060] In the fourth step, when the cargo pallet 1 in the cargo cache rack 701 needs to be output, the first driving cylinder 706 drives the movable plate 705 to move upward, and the hinge seats 707 and L-shaped clamps 708 on the front and rear sides of the movable plate 705 rise to clamp the two sides of the second cargo pallet 1 on the third conveyor belt 702. As the first driving cylinder 706 continues to rise, since the middle to the top of the guide frame 709 are parallel edges with the same spacing, the rotating wheel 710 on one side of the L-shaped clamp 708 will fit on one side of the guide frame 709 and continue to move upward. The L-shaped clamp 708 will drive the second cargo pallet 1 to rise and separate from the cargo pallet 1 on the top surface of the third conveyor belt 702 and no longer fit. At this time, the third conveyor belt 702 will output the surface cargo pallet 1 to the second bidirectional sorting conveyor 5.

[0061] The above solution is conducive to realizing fast input and output caching of multiple cargo pallets 1 equipped with flanges.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A transport buffer device, characterized in that: The invention relates to a cargo pallet (1), a first conveyor belt (2) for inputting the cargo pallet (1), a first bidirectional sorting conveyor (3), a second conveyor belt (4), a second bidirectional sorting conveyor (5) arranged on one side of the first bidirectional sorting conveyor (3), a cargo collecting rack (6) arranged on the right side of the second bidirectional sorting conveyor (5), and a cargo caching mechanism (7) arranged on the rear side of the second bidirectional sorting conveyor (5); the cargo caching mechanism (7) comprises a cargo caching rack (701), a third conveyor belt (702) arranged in the middle of the cargo caching rack (701), a cargo conveying rack (703) arranged at the bottom of the third conveyor belt (702), a first support plate (704) arranged on the left and right sides of the cargo caching rack (701), a movable plate (705) arranged above the first support plate (704), a first driving cylinder (706) for driving the movable plate (705) to move up and down, and a first driving cylinder (706) arranged at the front and rear sides of the first support plate (704). A hinge seat (707) on the side, an L-shaped clamp (708) rotatably arranged on each hinge seat (707), a guide frame (709) arranged on the top of the cargo cache rack (701), a rotating wheel (710) rotatably arranged on the top of the L-shaped clamp (708) and in contact with one side of the guide frame (709), a first torsion spring (711) arranged between the guide frame (709) and the L-shaped clamp (708), a second driving cylinder (712) arranged in the middle of the cargo cache rack (701) and used to pass through the third conveyor belt (702), and a suction cup (713) arranged on the top of the second driving cylinder (712), the rear end of the cargo conveyor rack (703) being rotatably connected to the cargo cache rack (701), the cargo cache rack (701) being provided with a second support plate (714) located below the third conveyor belt (702), and the second support plate (714) being provided with a third driving cylinder (715) for driving the front end of the third conveyor belt (702) to rise and fall; A first mechanical arm (8) for transferring the flange to the top surface of the first conveyor belt (2) is provided at intervals on one side of the first conveyor belt (2), the first mechanical arm (8) comprising a base (8001), a first driving device (8002) for driving the base (8001) to rotate, a first rotating arm (8003) rotatably arranged on one side of the base (8001), a second driving device (8004) for driving the first rotating arm (8003) to rotate, a second rotating arm (8005) rotatably arranged on a side of the first rotating arm (8003) away from the base (8001), a third driving device (8006) for driving the second rotating arm (8005) to rotate, and a clamping device (8007) arranged on the top of the second rotating arm (8005). ), and a fourth driving device (8008) for driving the clamping device (8007) to rotate, the clamping device (8007) comprising a connecting seat (81) arranged at one side of the second rotating arm (8005), a driving gear (82) rotatably arranged in the connecting seat (81), a first motor (83) for driving the driving gear (82) to rotate, a driven gear (84) rotatably arranged in the connecting seat (81), a screw rod (85) arranged in the middle of the driven gear (84), a guide rod (86) arranged at the front end of the connecting seat (81), and a clamping block (87) matched with both sides of the screw rod (85), the driven gear (84) meshing with the driving gear (82), the clamping block (87) being slidably connected to the guide rod (86), and the clamping block (87) ) comprises a connecting block (801), a guide column (802) disposed at the top of the connecting block (801), a first rack (803) slidably disposed in the guide column (802), a rotating shaft (804) rotatably disposed at the top of the connecting block (801), a first gear (805) disposed outside the rotating shaft (804) and meshing with the first rack (803), a second gear (806) disposed in the middle of the rotating shaft (804), a guide cylinder (807) disposed at the other side of the connecting block (801), a second rack (808) slidably disposed in the middle of the connecting block (801) and meshing with the second gear (806), a connecting column (809) disposed on the side of the second rack (808) away from the second gear (806), and a first gear (805) slidably disposed in the guide cylinder (807). A connecting seat (810), a limiting block (811) provided at the other side of the connecting block (801) and used for the second rack (808) to pass through, a baffle (812) provided at the middle of the second rack (808) and in contact with the limiting block (811), a first elastic member (813) provided between the baffle (812) and the connecting block (801), a rubber block (814) provided at the side of the first rack (803) away from the first gear (805), a plate groove (815) provided at one side of the connecting block (801), an anti-falling plate (816) slidably provided in the plate groove (815), and a second elastic member (817) provided between the top of the anti-falling plate (816) and the second rack (808), wherein the connecting seat (810) is connected to the screw rod (85).

2. A transport buffer device according to claim 1, characterized in that: A first mechanical arm (8) for transferring the flange to the top surface of the first conveyor belt (2) is provided at intervals on one side of the first conveyor belt (2).

3. A transport buffer device according to claim 1, characterized in that: A second mechanical arm (10) is provided between the second bidirectional sorting conveyor (5) and the goods collecting rack (6).

4. A transport buffer device according to claim 1, characterized in that: The first drive cylinder (706), the second drive cylinder (712) and the third drive cylinder (715) are air cylinders or electric push rods.

5. A transport buffering method, using the transport buffering device according to any one of claims 1 to 4, comprising the following steps: In the first step, the first conveyor belt (2) conveys the cargo pallet (1) equipped with the flange, and after the pallet reaches the first bidirectional sorting conveyor (3), when there are too many flanges on the second conveyor belt (4) and the pallet cannot be conveyed, the first bidirectional sorting conveyor (3) conveys the flanges backward to the second bidirectional sorting conveyor (5), and the second bidirectional sorting conveyor (5) conveys the flanges backward to the cargo buffer mechanism (7) for buffering; In the second step, the second bidirectional sorting conveyor (5) conveys the flange to the front of the cargo buffer rack (701), the built-in push rod of the third driving cylinder (715) descends to drive the front end of the third conveyor belt (702) to descend, and the height of the front end of the third conveyor belt (702) is kept consistent with that of the second bidirectional sorting conveyor (5), and the second bidirectional sorting conveyor (5) conveys the flange to the third conveyor belt (702); In the third step, when a new flange plate needs to be input, the built-in push rod of the second driving cylinder (712) rises to the cargo pallet (1) at the bottom of the flange plate, and then the suction cup (713) adsorbs the bottom surface of the cargo pallet (1). After completion, the built-in push rod of the second driving cylinder (712) continues to rise. After the cargo pallet (1) moves upward, the first driving cylinder (706) drives the movable plate (705) to move upward, and the hinge seats (707) and the L-shaped clamp (708) on the front and rear sides of the movable plate (705) will also move upward at the same time. After the L-shaped clamp (708) rises, since the width between the guide frames (709) gradually narrows from the bottom to the middle, the rotating wheel (710) on one side of the L-shaped clamp (708) contacts the guide frame (709), and the L-shaped clamp (708) will rotate toward the cargo pallet (1). After the L-shaped clamp (708) rotates, it will be inserted between the cargo pallets (1) to support the cargo pallets (1). After completion, the top suction cup (713) of the second driving cylinder (712) no longer absorbs the bottom surface of the cargo pallet (1), the built-in push rod of the second driving cylinder (712) descends, the first driving cylinder (706) drives the movable plate (705) to descend, and the movable plate (705) drives the hinge seat (707) and the L-shaped clamp (708) to descend. Under the action of the first torsion spring (711), the L-shaped clamp (708) rotates toward the guide frame (709), and the L-shaped clamp (708) will no longer contact and support the two sides of the top cargo pallet (1). The first input cargo pallet (1) will be attached to the top surface of the later input cargo pallet (1), so that multiple cargo pallets (1) can be repeatedly input; In the fourth step, when the cargo pallet (1) in the cargo buffer rack (701) needs to be output, the first driving cylinder (706) drives the movable plate (705) to move upward, and the hinge seats (707) and the L-shaped clamp (708) on the front and rear sides of the movable plate (705) rise to clamp the two sides of the second cargo pallet (1) on the third conveyor belt (702). As the first driving cylinder (706) continues to rise, since the middle to the top of the guide frame (709) are parallel edges with the same spacing, the rotating wheel (710) on one side of the L-shaped clamp (708) will be attached to one side of the guide frame (709) and continue to move upward. The L-shaped clamp (708) will drive the second cargo pallet (1) to rise and separate from the cargo pallet (1) on the top surface of the third conveyor belt (702) and no longer fit. At this time, the third conveyor belt (702) outputs the surface cargo pallet (1) to the second bidirectional sorting conveyor (5).

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