Bidirectional lifting conveyor

Abstract

The application discloses a bidirectional lifting conveyor, which comprises a rack, a plurality of rollers, three groups of conveying belt assemblies and a lifting assembly. Two ends of the rollers are rotatably connected to the rack, and the plurality of rollers are arranged in parallel with each other in a horizontal direction. The three groups of conveying belt assemblies are arranged in parallel with each other, the conveying direction of the conveying belt assemblies is parallel to the conveying direction of the rollers, and the three groups of conveying belt assemblies are respectively located in the gaps between the two sides of the rack and the plurality of rollers. The lifting assembly is located below the conveying belt assemblies, the lifting assembly can drive the three groups of conveying belt assemblies to simultaneously rise or fall, the conveying height of the conveying belt assemblies when rising is higher than the conveying height of the rollers, and the conveying height of the conveying belt assemblies when falling is lower than the conveying height of the rollers. Through the combination of the rollers, the conveying belt assemblies and the lifting assembly, the forward stable conveying and the reverse high-load conveying can be realized, and different conveying requirements of the forward automatic packaging and the reverse manual packaging can be met.

Description

Technical Field

[0001] This invention relates to a bidirectional lifting conveyor. Background Technology

[0002] Conveying mechanisms are widely used in production lines to improve efficiency, reduce manpower, and lower costs. For example, in the CCL (Chemical, Laundry, and Packaging) industry, automatic packaging is used for pallet packaging, where a conveyor transports each product directly to the packing machine. However, if the automatic equipment malfunctions, manual packing is required. To improve space utilization, the conveyor needs to be bidirectional. That is, during forward transport, the pallets are fed into the packing machine for packing; during reverse transport, they are received by a receiving trolley for manual packing. Simultaneously, when the pallets are fed into the packing machine, it must be ensured that the bottom pallets are not scratched by the conveyor; therefore, conveyor belts are generally chosen. During manual packing, to reduce the number of packing operations and improve efficiency, pallets are typically stacked as many as possible, and the weight far exceeds the conveyor belt's capacity, so roller conveying is necessary. These two packing methods place different demands on the conveying mechanism, and they cannot interfere with each other; currently, existing mechanisms cannot meet these conveying requirements. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect that the conveying mechanism in the prior art cannot meet the conveying requirements of both automatic and manual packing modes of pressure plate, and to provide a bidirectional lifting conveyor that can solve the above problem.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A bidirectional lifting conveyor, characterized in that it comprises:

[0006] frame;

[0007] Multiple rollers, the two ends of which are rotatably connected to the frame, and the multiple rollers are arranged parallel to each other in the horizontal direction;

[0008] Three sets of conveyor belt assemblies are arranged parallel to each other. The conveying direction of the conveyor belt assemblies is parallel to the conveying direction of the rollers. The three sets of conveyor belt assemblies are located on both sides of the frame and in the gaps formed by the multiple rollers, respectively.

[0009] A lifting assembly is located below the conveyor belt assembly. The lifting assembly can drive the three conveyor belt assemblies to rise or fall simultaneously. When the conveyor belt assembly is raised, its conveying height is higher than that of the roller. When the conveyor belt assembly is lowered, its conveying height is lower than that of the roller.

[0010] Preferably, the lifting assembly includes a first hydraulic cylinder, two main support blocks, and a main connecting rod. The main connecting rod is fixed to the bottom of the three conveyor belt assemblies, and the main support blocks are fixed to the frame. The fixed end of the first hydraulic cylinder is hinged to the frame, and the movable end of the first hydraulic cylinder is hinged to the main connecting rod. Each main support block has a lifting channel. The two main support blocks are mirror-image arranged along a plane perpendicular to the main connecting rod. The two ends of the main connecting rod are respectively located in the two lifting channels. The lifting channel is composed of a ramp channel and horizontal channels located at the bottom and top. The movable end of the first hydraulic cylinder can push the two ends of the main connecting rod to move up and down along the ramp channel.

[0011] Preferably, the main connecting rod has bearings at both ends, and the bearings are located within the lifting channel.

[0012] Preferably, there are two first hydraulic cylinders, which are arranged axially along the main connecting rod.

[0013] Preferably, the lifting assembly further includes two auxiliary support blocks and an auxiliary connecting rod. The two auxiliary support blocks are fixed to the frame. The auxiliary support blocks have the same structure as the main support blocks. The auxiliary connecting rods are parallel to the main connecting rods and cooperate with the auxiliary support blocks. The auxiliary connecting rods and the main connecting rods are arranged along the conveying direction of the conveyor belt assembly.

[0014] Preferably, the conveyor belt assembly includes a support frame, a conveyor belt, and a drive wheel, a driven wheel, and a plurality of support wheels rotatably connected to the support frame. The plurality of support wheels are located between the drive wheel and the driven wheel. The conveyor belt is fitted onto the drive wheel, the driven wheel, and the support wheels. The main connecting rod is fixed to the bottom of the support frame.

[0015] Preferably, the support frame has an elongated groove, and the two ends of the driven wheel are fixed in the elongated groove. The extending direction of the elongated groove is parallel to the conveying direction of the conveyor belt.

[0016] Preferably, the conveyor belt assembly further includes a conveyor belt motor and a first transmission rod, the conveyor belt motor being fixed to the frame, the first transmission rod passing through the three drive wheels and being fixed to each of the drive wheels, and the motor driving the first transmission rod to rotate.

[0017] Preferably, the bidirectional lifting conveyor also includes a roller motor, which is fixed to the frame. The rollers have sprockets on their sides, and adjacent rollers are connected to each other by chains. The roller motor drives the rollers to rotate.

[0018] Preferably, the bidirectional lifting conveyor further includes a scissor lifting mechanism, which includes a base plate, a scissor mechanism, and a second hydraulic cylinder. One end of the bottom of the scissor mechanism is hinged to the base plate, and the other end of the bottom of the scissor mechanism is slidably connected to the base plate. One end of the top of the scissor mechanism is hinged to the bottom of the frame, and the other end of the top of the scissor mechanism is slidably connected to the bottom of the frame. The two ends of the second hydraulic cylinder are respectively hinged to the two ends of the bottom of the scissor mechanism.

[0019] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0020] The positive and progressive effects of this invention are that by combining rollers, conveyor belt components and lifting components, it is possible to achieve smooth forward transportation and high-load reverse transportation, thus meeting the different transportation needs of forward automatic packaging and reverse manual packaging. Attached Figure Description

[0021] Figure 1 This is a front view of the internal structure of the bidirectional lifting conveyor in a preferred embodiment of the present invention.

[0022] Figure 2 This is a top view of the internal structure of the bidirectional lifting conveyor in a preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] Rack 100

[0025] 200 rollers

[0026] sprocket 210

[0027] Conveyor Belt Component 300

[0028] Support frame 310

[0029] Long groove 311

[0030] Conveyor belt 320

[0031] Drive wheel 330

[0032] Driven wheel 340

[0033] Support wheel 350

[0034] 360° conveyor motor

[0035] First transmission rod 370

[0036] Lifting component 400

[0037] First hydraulic cylinder 410

[0038] Main support block 420

[0039] Main connecting rod 430

[0040] Bearing 431

[0041] Lifting channel 440

[0042] Ramp passage 441

[0043] Horizontal channel 442

[0044] Auxiliary support block 450

[0045] Auxiliary connecting rod 460

[0046] 700 Roller Motor

[0047] 800 scissor lift mechanism

[0048] Base plate 810

[0049] scissor lift mechanism 820

[0050] Second hydraulic cylinder 830 Detailed Implementation

[0051] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0052] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] Figure 1 and Figure 2A bidirectional lifting conveyor is shown, comprising: a frame 100, a plurality of rollers 200, three sets of conveyor belt assemblies 300, and a lifting assembly 400. The rollers 200 are rotatably connected to the frame 100 at both ends, and the plurality of rollers 200 are arranged parallel to each other in a horizontal direction. The three sets of conveyor belt assemblies 300 are arranged parallel to each other, with the conveying direction of the conveyor belt assemblies 300 parallel to the conveying direction of the rollers 200. The three sets of conveyor belt assemblies 300 are located on both sides of the frame 100 and within the gaps formed by the plurality of rollers 200, respectively. The lifting assembly 400 is located below the conveyor belt assemblies 300, and the lifting assembly 400 can drive the three conveyor belt assemblies 300 to rise or fall simultaneously. When the conveyor belt assemblies 300 are raised, their conveying height is higher than that of the rollers 200; when the conveyor belt assemblies 300 are lowered, their conveying height is lower than that of the rollers 200.

[0054] Based on actual needs, when using this device for automatic packaging, it is essential to ensure that there is no relative slippage between the bottom pressure plate and the conveyor mechanism to prevent scratches or damage to the bottom of the pressure plate. The lifting assembly 400 raises the three conveyor belt assemblies 300, ensuring their transmission height is higher than the conveying height of the rollers 200. The pressure plates are then stacked one by one onto the conveyor belt assemblies 300 and transported forward by the conveyor belt to the packaging machine for final packaging. If the automatic packaging machine malfunctions, the stacked pressure plates must be removed from the conveyor mechanism and manually packaged. To improve efficiency and minimize manual packaging, the thickness of the stacked pressure plates is significantly greater than that of the automatic packaging pressure plates, generally exceeding the carrying capacity of the conveyor belt assembly 300. At this point, the lifting component 400 lowers the three sets of conveyor belt assemblies 300, making the conveying height of the rollers 200 higher than that of the conveyor belt assemblies 300. A pad is placed on the rollers 200, and then the pressure plates are stacked one by one on the pad. After stacking, the rollers 200 transport the pads and pressure plates in the reverse direction to remove them from the conveyor mechanism, and then manual packaging is completed. This device enables stable forward transport and high-load reverse transport, meeting different transport needs such as automatic forward packaging and manual reverse packaging.

[0055] In this embodiment, the lifting assembly 400 includes a first hydraulic cylinder 410, two main support blocks 420, and a main connecting rod 430. The main connecting rod 430 is fixed to the bottom of the three conveyor belt assemblies 300, the main support blocks 420 are fixed to the frame 100, the fixed end of the first hydraulic cylinder 410 is hinged to the frame 100, and the moving end of the first hydraulic cylinder 410 is hinged to the main connecting rod 430. Each main support block 420 has a lifting channel 440. The two main support blocks 420 are mirror images of each other along a plane perpendicular to the main connecting rod 430, and the two ends of the main connecting rod 430 are respectively located in the two lifting channels 440. The lifting channel 440 is composed of a ramp channel 441 and a horizontal channel 442 located at the bottom and top. The moving end of the first hydraulic cylinder 410 can push the two ends of the main connecting rod 430 to move up and down along the ramp channel 441.

[0056] When the conveyor belt assembly 300 needs to be raised, the first hydraulic cylinder 410 is activated, and the piston rod extends outward. At this time, the piston rod pushes both ends of the main connecting rod 430 upwards along the inclined channel 441 within the lifting channel 440 until it reaches the horizontal channel 442 above the inclined channel 441. The horizontal channel 442 then supports both ends of the main connecting rod 430, enhancing the support capacity of the conveyor belt assembly 300 and improving its safety and reliability. That is, the weight of the stacked pressure plates is transferred through both ends of the main connecting rod 430 to the horizontal channel 442 within the main support block 420, preventing the first hydraulic cylinder 410 from being directly stressed, thus preventing the conveyor belt assembly 300 from accidentally descending. When the conveyor belt assembly 300 needs to be lowered, the reverse is true.

[0057] In order to enable both ends of the main connecting rod 430 to move smoothly within the lifting channel 440, the two ends of the main connecting rod 430 are provided with bearings 431, which are located within the lifting channel 440.

[0058] In this embodiment, there are two first hydraulic cylinders 410, which are arranged axially along the main connecting rod 430. The two first hydraulic cylinders 410 can improve the ability to push the conveyor belt assembly 300.

[0059] To enhance the support strength of the lifting assembly 400 for the conveyor belt assembly 300, the lifting assembly 400 further includes two auxiliary support blocks 450 and an auxiliary connecting rod 460. The two auxiliary support blocks 450 are fixed to the frame 100 and have the same structure as the main support block 420. The auxiliary connecting rod 460 is parallel to the main connecting rod 430 and cooperates with the auxiliary support blocks 450. The auxiliary connecting rod 460 and the main connecting rod 430 are arranged along the conveying direction of the conveyor belt assembly 300. Both ends of the auxiliary connecting rod 460 can slide on the lifting channel within the auxiliary support block 450.

[0060] In this design, the conveyor belt assembly 300 includes a support frame 310, a conveyor belt 320, and a drive wheel 330, a driven wheel 340, and multiple support wheels 350 rotatably connected to the support frame 310. The multiple support wheels 350 are located between the drive wheel 330 and the driven wheel 340. The conveyor belt 320 is fitted onto the drive wheel 330, the driven wheel 340, and the support wheels 350. The main connecting rod 430 is fixed to the bottom of the support frame 310. The drive wheel 330, the driven wheel 340, the multiple support wheels 350, and the conveyor belt 320 cooperate to achieve the transmission purpose of the conveyor belt 320.

[0061] In order to adjust the tension of the conveyor belt 320, the support frame 310 has an elongated groove 311, and the two ends of the driven wheel 340 are fixed in the elongated groove 311. The extension direction of the elongated groove 311 is parallel to the conveying direction of the conveyor belt 320.

[0062] In this embodiment, the conveyor belt assembly 300 further includes a conveyor belt motor 360 and a first transmission rod 370. The conveyor belt motor 360 is fixed to the frame 100, and the first transmission rod 370 passes through three drive wheels 330 and is fixed to each drive wheel 330. The motor drives the first transmission rod 370 to rotate. The rotation of the first transmission rod 370 enables the three sets of conveyor belts 320 to move synchronously and at the same speed.

[0063] In addition, the bidirectional lifting conveyor also includes a roller motor 700, which is fixed to the frame 100. Each roller 200 has a sprocket 210 on its side, and adjacent rollers 200 are connected to each other via a chain (not shown in the figure). The roller motor 700 drives the rollers 200 to rotate. The roller motor 700, through the sprocket 210 and chain, can drive all rollers 200 to rotate synchronously and at the same speed.

[0064] In actual operation, due to the height limitation of the automatic packing machine's entrance, the height of the stacked pallets to be packed must be kept consistent. However, due to the different gaps between the pallets, the thickness of the same number of pallets often varies. Therefore, it is necessary to adjust the height of the entire frame 100 during or after the stacking process. To achieve this function, in this solution, the bidirectional lifting conveyor also includes a scissor lifting mechanism 800, which includes a base plate 810, a scissor mechanism 820, and a second hydraulic cylinder 830. One end of the bottom of the scissor mechanism 820 is hinged to the base plate 810, and the other end of the bottom of the scissor mechanism 820 is slidably connected to the base plate 810. One end of the top of the scissor mechanism 820 is hinged to the bottom of the frame 100, and the other end of the top of the scissor mechanism 820 is slidably connected to the bottom of the frame 100. The two ends of the second hydraulic cylinder 830 are respectively hinged to the two ends of the bottom of the scissor mechanism 820. The second hydraulic cylinder 830 can drive one end of the scissor mechanism 820 to slide along the base plate 810, thereby raising or lowering the frame 100.

[0065] The bidirectional lifting conveyor in this embodiment also includes a detection mechanism (not shown in the figure) and a control mechanism (not shown in the figure). It can automatically detect the height of the pressure plate and send a signal to the control mechanism, which drives the second hydraulic cylinder 830 to work, so that the scissor mechanism 820 raises or lowers the entire frame 100 to ensure that the height of the pressure plates fed into the packaging machine in each batch remains consistent.

[0066] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A bidirectional lift conveyor characterized by, It comprises: a frame; a plurality of rollers, both ends of which are rotatably connected to the frame, and a plurality of the rollers are arranged in parallel with each other in the horizontal direction; three sets of conveyor belt assemblies, three sets of the conveyor belt assemblies are arranged in parallel with each other, the conveying direction of the conveyor belt assemblies is parallel and opposite to the conveying direction of the rollers, and three sets of the conveyor belt assemblies are respectively located in the gap formed by the two sides of the frame and a plurality of the rollers; a lifting assembly, which is located below the conveyor belt assemblies, and the lifting assembly can drive the three conveyor belt assemblies to rise or fall at the same time, the conveying height of the conveyor belt assemblies when rising is higher than the conveying height of the rollers, and the conveying height of the conveyor belt assemblies when falling is lower than the conveying height of the rollers, for driving the conveyor belt assemblies to rise and fall by the lifting assembly, so as to selectively realize the automatic packaging mode and the manual packaging mode, in the automatic packaging mode, the stacked pressing plates are conveyed to the packaging machine by the conveyor belt assemblies in the forward direction, in the manual packaging mode, the stacked pressing plates are conveyed by the rollers in the reverse direction, and the stacking thickness of the pressing plates in the manual packaging mode is higher than that in the automatic packaging mode.

2. The bidirectional lift conveyor of claim 1, wherein, The lifting assembly comprises a first hydraulic cylinder, two main supporting blocks and a main connecting rod, the main connecting rod is fixed to the bottom of the three conveyor belt assemblies, the main supporting blocks are fixed to the frame, the fixed end of the first hydraulic cylinder is hinged to the frame, the moving end of the first hydraulic cylinder is hinged to the main connecting rod, each of the main supporting blocks has a lifting channel, the two main supporting blocks are mirror images arranged along the surface perpendicular to the main connecting rod, both ends of the main connecting rod are respectively located in the two lifting channels, the lifting channel is composed of a slope channel and a horizontal channel located at the bottom and the top, and the moving end of the first hydraulic cylinder can push both ends of the main connecting rod to move up and down along the slope channel.

3. The bidirectional lift conveyor of claim 2, wherein, Both ends of the main connecting rod have bearings, and the bearings are located in the lifting channel.

4. The bidirectional lift conveyor of claim 2, wherein, The number of the first hydraulic cylinders is two, and the two first hydraulic cylinders are arranged along the axial direction of the main connecting rod.

5. The bidirectional lift conveyor of claim 2, wherein, The lifting assembly further comprises two auxiliary supporting blocks and an auxiliary connecting rod, the two auxiliary supporting blocks are fixed to the frame, the auxiliary supporting blocks have the same structure as the main supporting blocks, the auxiliary connecting rod is parallel to the main connecting rod and cooperates with the auxiliary supporting blocks, and the auxiliary connecting rod and the main connecting rod are arranged along the conveying direction of the conveyor belt assemblies.

6. The bidirectional lift conveyor of claim 2, wherein, The conveyor belt assembly comprises a support frame, a conveyor belt, a driving wheel rotatably connected to the support frame, a driven wheel, and a plurality of supporting wheels, the plurality of supporting wheels are located between the driving wheel and the driven wheel, the conveyor belt is sleeved on the driving wheel, the driven wheel and the supporting wheels, and the main connecting rod is fixed to the bottom of the support frame.

7. The bidirectional lift conveyor of claim 6, wherein, The support frame has an elongated groove, both ends of the driven wheel are fixed in the elongated groove, and the extension direction of the elongated groove is parallel to the conveying direction of the conveyor belt.

8. The bidirectional lift conveyor of claim 7, wherein, The conveying belt assembly further comprises a conveying belt motor fixed to the frame and a first transmission rod penetrating through the three driving wheels and fixed to each of the driving wheels, and the motor drives the first transmission rod to rotate.

9. The bidirectional lift conveyor of claim 8, wherein, The bidirectional lifting conveyor further comprises a roller motor fixed to the frame, the side edges of the rollers are provided with sprockets, and adjacent rollers are connected to each other through chains, and the roller motor drives the rollers to rotate.

10. The bidirectional lift conveyor of claim 9, wherein, The bidirectional lifting conveyor further comprises a scissor lifting mechanism, the scissor lifting mechanism comprises a bottom plate, a scissor mechanism and a second hydraulic cylinder, one end of the bottom of the scissor mechanism is hinged to the bottom plate, the other end of the bottom of the scissor mechanism is slidably connected to the bottom plate, one end of the top of the scissor mechanism is hinged to the bottom of the frame, the other end of the top of the scissor mechanism is slidably connected to the bottom of the frame, and the two ends of the second hydraulic cylinder are respectively hinged to the two ends of the bottom of the scissor mechanism.

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