Conveying device and method for producing biodegradable cake paper trays

Abstract

The present invention relates to the technical field, specifically to a conveying device and method for producing biodegradable paper cake trays, comprising an inner frame and a frame well fixedly connected to the outer surface thereof, a plurality of conveying rollers for conveying materials being rotatably connected inside the inner frame, a counterweight block being arranged above the inner frame, a clamping plate for clamping materials being arranged below the counterweight block, a driving assembly for driving the counterweight block to rise and fall being arranged at the top of the frame well, a plurality of air holes being arranged inside the plurality of conveying rollers, both ends of the plurality of conveying rollers being connected to the inner frame, a vacuum pump being fixedly connected to both sides of the inner frame, a ventilation assembly for connecting the inner frame with the plurality of conveying rollers being arranged inside the inner frame, and a metering assembly for weighing materials being arranged at the bottom of the counterweight block. The stability of the paper tray during the conveying process is ensured, and the slippage or deviation caused by vibration or external force is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tray production and transportation, and in particular to a conveying device and method for producing biodegradable cake paper trays. Background Art

[0002] With the increasing awareness of environmental protection, traditional plastic packaging materials are gradually being replaced by biodegradable materials due to their difficulty in degradation and serious environmental pollution. In the field of food packaging, especially in the packaging of baked products such as cakes, biodegradable paper pallets are gradually favored by the market due to their environmental protection, biodegradability, and low cost. However, in the production process of biodegradable cake paper pallets, how to efficiently and stably pack the finished pallets and transport them to the next process has become an urgent problem to be solved.

[0003] For example, the patent application with the prior art announcement number CN220375714U discloses an automatic oven-discharging conveyor line, which relates to the field of baking production technology, including a base frame, provided with at least two groups of conveyor belts, the conveyor belts are used to convey trays with cake embryos, the base frame is provided with a lifting device, the lifting device is provided with a lifting platform, the lifting platform is located between two adjacent groups of conveyor belts, the base frame is equipped with a reversible first stop block and a second stop block, the first stop block and the second stop block are located between the two adjacent groups of conveyor belts, in the conveying direction of the conveyor belt, the first stop block is located upstream of the second stop block, and the second stop block is located downstream of the lifting platform, the second stop block stops the tray from moving, and the repeated lifting and lowering motion of the lifting platform causes the tray to vibrate, which is beneficial for removing the cake after cooling.

[0004] In the current production process of biodegradable paper cake trays, although the repeated lifting and lowering motion of the lifting platform to promote the cooling and demolding of the cake on the tray is an effective method, this method has exposed significant defects in practical applications. Specifically, due to the complexity of the production line environment, such as air flow disturbances, equipment vibrations, differences in pallet materials and other factors, the pallet is extremely susceptible to external interference during transportation, causing the cake on the tray or the tray itself to accidentally fall off the conveyor belt. This falling phenomenon will not only cause direct loss of materials, but more importantly, it will disrupt the original production rhythm and cause the material to deviate from the predetermined conveying track, thereby causing a chain reaction to subsequent process links such as boxing, quality inspection, and packaging. To this end, the present application proposes a conveying device and method for the production of biodegradable paper cake trays. Summary of the invention

[0005] The object of the present invention is to provide a conveying device and method for producing biodegradable cake paper trays to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a conveying device for the production of biodegradable cake paper trays, comprising an inner frame and a frame well fixedly connected to the outer surface thereof, a plurality of conveying rollers for conveying materials being rotatably connected inside the inner frame, a counterweight block is arranged above the inner frame, a clamping plate for clamping materials is arranged below the counterweight block, a driving component for driving the counterweight block to rise and fall is arranged on the top of the frame well, a plurality of air holes are provided inside the plurality of conveying rollers, both ends of the plurality of conveying rollers are connected to the inner frame, vacuum pumps are fixedly connected on both sides of the inner frame, a ventilation component for connecting the inner frame with the plurality of conveying rollers is arranged inside the inner frame, and a metering component for weighing materials is arranged at the bottom of the counterweight block.

[0007] Preferably, the ventilation assembly includes a plurality of brackets fixedly connected to the inner frame, the interiors of the plurality of brackets are fixedly connected with sealing strips, the interiors of the plurality of conveying rollers are fixedly connected with a fixing frame, one end of the fixing frame is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a rotating disk, and the outer surface of the rotating disk is provided with a power mechanism for driving the plurality of sealing strips to move.

[0008] Preferably, the power mechanism includes a plurality of grooves opened on the outer surface of the turntable, movable blocks are arranged inside the plurality of grooves, ball bearings are rotatably connected to the tops of the plurality of movable blocks, counterweight beads are fixedly connected inside the plurality of movable blocks, and springs fixedly connected to the movable blocks are fixedly connected inside the plurality of grooves.

[0009] Preferably, the driving assembly includes a top plate fixedly connected to the top of the frame well, the top of the top plate is rotatably connected to a shaft rod, the top of the top plate is fixedly connected to a bearing seat, the outer surface of the shaft rod is fixedly connected to a third sprocket, the inside of the bearing seat is rotatably connected to an auxiliary sprocket, the top of the counterweight block is fixedly connected to a lifting chain transmission-connected to the third sprocket, the end of the lifting chain away from the counterweight block is fixedly connected to a positioning block, and the positioning block is slidably connected to the frame well.

[0010] Preferably, the top of the inner frame is fixedly connected to a positioning bar to which the counterweight block is slidably connected, the interior of the positioning bar is fixedly connected to an air cylinder, the bottom of the air cylinder is slidably connected to an active piston rod adapted thereto, the bottom of the active piston rod is fixedly connected to the counterweight block, the outer surface of the active piston rod is sleeved with a tension spring for resetting the counterweight block, and one side of the air cylinder is fixedly connected to an air supply pipe.

[0011] Preferably, the metering assembly includes a plurality of weighing devices fixedly connected to the bottom of the counterweight block, the bottoms of the plurality of weighing devices are commonly fixedly connected to a weighing plate, the inside of the weighing plate is fixedly connected to an air receiving cylinder, both ends of the air receiving cylinder are slidably connected to a slave piston rod adapted thereto, and the slave piston rod is fixedly connected to a clamping plate, the outer surface of the slave piston rod is sleeved with a reset spring for resetting the slave piston rod, the top of the air receiving cylinder is connected to a ventilation pipe, and both ends of the ventilation pipe are connected to spring tubes connected to the air supply pipe.

[0012] Preferably, a servo motor is fixedly connected to the top of the top plate, a first sprocket is fixedly connected to the output end of the servo motor, a second sprocket is fixedly connected to one end of the shaft, and the first sprocket is drivingly connected to the second sprocket.

[0013] Preferably, the top of the inner frame is connected to a plurality of air distribution pipes, the tops of the plurality of air distribution pipes are connected to a plurality of hoses connected to the clamping plates, and one side of the plurality of clamping plates is provided with an air suction hole.

[0014] Preferably, a driving motor whose output end is fixedly connected to a conveying roller is fixedly connected to the bottom of the inner frame, one end of each of the conveying rollers is fixedly connected to a fourth sprocket, and outer surfaces of each of the fourth sprockets are sleeved with a transmission chain.

[0015] The present invention also provides a conveying method for producing a biodegradable cake paper tray, comprising the following steps:

[0016] S1. When in use, firstly drive multiple conveying rollers to rotate synchronously, thereby driving the packed paper pallets on the multiple conveying rollers to be conveyed;

[0017] S2. At the same time, the ventilation assembly is operated to open the passage between the inner frame and the conveying roller, so that air is sucked in the conveying roller, thereby adsorbing the paper pallet box on the conveying roller to improve its conveying stability;

[0018] S3. When the packed paper pallet is located directly below the counterweight, the multiple conveyor rollers are stopped and the passage between the inner frame and the conveyor rollers is blocked again. At this time, the gas in the inner frame will be evacuated from the air distribution pipe. At this time, the driving component can be controlled to control the counterweight to move down and gradually approach the packed paper pallet. As the counterweight moves down gradually, the metering component is started, and the two clamps are brought close to each other to contact the packed paper pallet. At the same time, the air suction in the suction hole fixes the packed paper pallet to determine whether the packing quantity is qualified.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the vacuum pump is working, negative pressure is formed in the inner frame. At the same time, due to the centrifugal effect of the turntable and the counterweight ball inside the conveyor roller, the ball pushes the blocking strip to dislocate, thereby opening the channel between the conveyor roller and the inner frame. In this way, the conveyor roller also produces an air suction effect, which works together with the negative pressure of the inner frame to greatly enhance the adsorption force of the paper pallet packaging. This double adsorption mechanism ensures the stability of the paper pallet during transportation and reduces slippage or deviation caused by vibration or external force.

[0021] 2. Driven by the servo motor, the entire process from stopping the conveyor roller, moving the counterweight down, clamping the paper pallet, weighing, releasing the paper pallet to restarting the conveyor roller is fully automated. This highly integrated automated process greatly improves production efficiency and accuracy, reduces manual intervention and errors, and the metering component can clamp the paper pallet when the counterweight moves down through the cooperation of the weighing device and the air cylinder, and accurately weigh it during the upward movement. The design of the suction hole and the air distribution pipe enables the adsorption force generated by the vacuum pump to be transmitted to the clamping plate, further enhancing the stability of clamping the paper pallet. The combination of the servo motor and the lifting chain allows the height of the counterweight to be flexibly adjusted to accommodate paper pallets of different sizes and weights. At the same time, the design of the air cylinder and the driven piston rod also allows the clamping plate to be fine-tuned according to the thickness of the paper pallet, improving the adaptability and flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the top plate in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the driving component in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the inner frame in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the conveying roller in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the counterweight block in the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the counterweight block in the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the gas receiving cylinder in the present invention;

[0031] Fig.10 It is a schematic diagram of the cross-sectional structure of the gas cylinder in the present invention;

[0032] Fig.11 It is a schematic diagram of the cross-sectional structure of the conveying roller in the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the blocking strip in the present invention;

[0034] Fig.13 It is a schematic diagram of the cross-sectional structure of the turntable in the present invention;

[0035] Fig.14 For the present invention Fig.13 A schematic diagram of the enlarged structure in the middle.

[0036] In the figure: 100, inner frame; 101, frame well; 102, top plate; 200, counterweight; 201, lifting chain; 202, servo motor; 203, first sprocket; 204, second sprocket; 205, shaft; 206, third sprocket; 207, auxiliary sprocket; 208, bearing seat; 209, positioning block; 300, clamping plate; 301, positioning strip; 302, air suction hole; 303, air cylinder; 304, air delivery pipe; 305, spring tube; 306, weighing plate; 307, weighing device; 308, receiving Air cylinder; 309, driven piston rod; 310, return spring; 311, vent pipe; 312, active piston rod; 313, tension spring; 400, conveying roller; 401, air hole; 402, driving motor; 403, vacuum pump; 404, fourth sprocket; 405, transmission chain; 406, fixed frame; 407, rotating rod; 408, sealing strip; 409, bracket; 410, turntable; 411, movable block; 412, ball; 413, counterweight ball; 414, spring; 415, air distribution pipe; 416, hose. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 6The present invention provides a technical solution: a conveying device for producing biodegradable cake paper trays, comprising an inner frame 100 and a frame well 101 fixedly connected to the outer surface thereof, a plurality of conveying rollers 400 for conveying materials are rotatably connected inside the inner frame 100, a plurality of air holes 401 are opened inside the plurality of conveying rollers 400, both ends of the plurality of conveying rollers 400 are connected to the inner frame 100, a driving motor 402 whose output end is fixedly connected to the conveying rollers 400 is fixedly connected to the bottom of the inner frame 100, a fourth sprocket 404 is fixedly connected to one end of the plurality of conveying rollers 400, and The outer surfaces of the multiple fourth sprockets 404 are all sleeved with transmission chains 405. By starting the driving motor 402, a single conveying roller 400 can be driven to rotate, so that the fourth sprocket 404 and the transmission chain 405 cooperate to synchronously drive the multiple conveying rollers 400 to rotate. The two sides of the inner frame 100 are respectively fixedly connected with an air pump 403, and the interior of the inner frame 100 is provided with a ventilation component for connecting the inner frame 100 with the multiple conveying rollers 400. By setting the ventilation component, the conveying roller 400 can be connected to the inner frame 100, and then air is sucked from the air hole 401 to fix the material.

[0039] For further information, see Fig.11 , Fig.12 as well as Figure 5 The ventilation assembly includes a plurality of brackets 409 fixedly connected to the inner frame 100, and the interiors of the plurality of brackets 409 are fixedly connected with sealing strips 408. The plurality of sealing strips 408 can form a sealed state in the initial state, thereby blocking the gas in the conveying roller 400 from entering the inner frame 100, and a torsion spring for driving the sealing strip 408 to reset is provided at the connection between the sealing strip 408 and the bracket 409, and the interiors of the plurality of conveying rollers 400 are fixedly connected with a fixing frame 406, one end of the fixing frame 406 is fixedly connected with a rotating rod 407, and one end of the rotating rod 407 is fixedly connected with a rotating disk 410, and the outer surface of the rotating disk 410 is provided with a power mechanism for pushing the plurality of sealing strips 408 to move, and by providing the power mechanism, the sealing strips 408 can be driven to open when the conveying roller 400 rotates, thereby achieving ventilation.

[0040] Among them, see Fig.12 , Fig.13 as well as Fig.14The power mechanism includes a plurality of grooves formed on the outer surface of the turntable 410, wherein movable blocks 411 are arranged inside the plurality of grooves, and the tops of the plurality of movable blocks 411 are rotatably connected with balls 412, and the interiors of the plurality of movable blocks 411 are fixedly connected with counterweight beads 413, and the plurality of grooves are fixedly connected with springs 414 fixedly connected with the movable blocks 411. When the conveying roller 400 rotates to convey materials, the turntable 410 is driven to rotate with it, thereby generating negative pressure inside the conveying roller 400 to form suction, and when the conveying roller 400 is stationary, negative pressure cannot be generated to adsorb materials.

[0041] Specifically, the drive motor 402 is started to drive a single conveying roller 400 to rotate, so that the single conveying roller 400 rotates and the fourth sprocket 404 drives the transmission chain 405 to rotate, thereby driving multiple conveying rollers 400 to move synchronously, thereby driving the packed paper pallets located on the multiple conveying rollers 400 to be conveyed, and at the same time, the vacuum pump 403 is turned on to exhaust air in the inner frame 100. At this time, when the multiple conveying rollers 400 rotate, the rotating rod 407 inside them will be driven to rotate along with them, and when the rotating rod 407 rotates, it will drive the turntable 410 to rotate, thereby generating centrifugal force, and the centrifugal force acting on the counterweight ball 413 will cause the movable block 411 to move, thereby driving the ball 412 to resist one end of the blocking strip 408, thereby continuously pushing the blocking strip 408 to make it misaligned, thereby opening the channel between the inner frame 100 and the conveying roller 400, so that suction is generated in the conveying roller 400, thereby adsorbing the packed paper pallets located on the conveying roller 400, thereby improving its conveying stability.

[0042] In summary, when the vacuum pump 403 is working, negative pressure is formed in the inner frame 100, and at the same time, due to the centrifugal action of the turntable 410 and the counterweight ball 413 inside the conveying roller 400, the ball 412 pushes the blocking strip 408 to be misplaced, thereby opening the channel between the conveying roller 400 and the inner frame 100. In this way, the conveying roller 400 also produces an air suction effect, which works together with the negative pressure of the inner frame 100 to greatly enhance the adsorption force for the paper pallet packaging. This double adsorption mechanism ensures the stability of the paper pallet during the conveying process and reduces the slippage or deviation caused by vibration or external force.

[0043] Example 2: Please refer to Figure 1 , Figure 2 as well as Figure 3The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a conveying device for the production of biodegradable cake paper trays, a counterweight block 200 is arranged above the inner frame 100, and a clamping plate 300 for clamping the material is arranged below the counterweight block 200. A driving component for driving the counterweight block 200 to rise and fall is arranged at the top of the frame well 101, and a metering component for weighing the material is arranged at the bottom of the counterweight block 200. By setting the driving component, it is convenient to pull the counterweight block 200 up and down, thereby realizing the metering work of the material, and the metering component can weigh the material to know whether the material meets the standard.

[0044] For further information, see Figure 3 , Figure 4 as well as Figure 5 The driving assembly includes a top plate 102 fixedly connected to the top of the frame well 101, the top of the top plate 102 is rotatably connected to a shaft 205, the top of the top plate 102 is fixedly connected to a bearing seat 208, the outer surface of the shaft 205 is fixedly connected to a third sprocket 206, the inner part of the bearing seat 208 is rotatably connected to an auxiliary sprocket 207, the top of the counterweight block 200 is fixedly connected to a lifting chain 201 that is transmission-connected to the third sprocket 206, and the end of the lifting chain 201 away from the counterweight block 200 is fixedly connected to a positioning block 209, The positioning block 209 is slidably connected to the frame well 101, a servo motor 202 is fixedly connected to the top of the top plate 102, an output end of the servo motor 202 is fixedly connected to a first sprocket 203, one end of the shaft 205 is fixedly connected to a second sprocket 204, the first sprocket 203 is transmission-connected with the second sprocket 204, and the servo motor 202 is arranged to facilitate driving the shaft 205 to rotate, thereby driving the lifting chain 201 to move, and the positioning block 209 is slidably connected to the frame well 101, so as to facilitate adjusting the height of the counterweight block 200.

[0045] Among them, see Figure 7 , Figure 8 as well as Fig.10 The top of the inner frame 100 is fixedly connected to a positioning bar 301 for sliding connection of the counterweight 200, the inside of the positioning bar 301 is fixedly connected to an air cylinder 303, the bottom of the air cylinder 303 is slidably connected to an active piston rod 312 adapted thereto, the bottom of the active piston rod 312 is fixedly connected to the counterweight 200, the outer surface of the active piston rod 312 is sleeved with a tension spring 313 for resetting the counterweight 200, one side of the air cylinder 303 is fixedly connected to an air pipe 304, the positioning bar 301 can provide guidance for the splint 300, thereby improving its movement stability.

[0046] For further information, see Figure 8 , Fig. 9 as well as Fig.10The metering assembly includes a plurality of weighing devices 307 fixedly connected to the bottom of the counterweight block 200, the bottoms of the plurality of weighing devices 307 are commonly fixedly connected to a weighing plate 306, the inside of the weighing plate 306 is fixedly connected to an air receiving cylinder 308, both ends of the air receiving cylinder 308 are slidably connected to a slave piston rod 309 adapted thereto, and the slave piston rod 309 is fixedly connected to the clamping plate 300, the outer surface of the slave piston rod 309 is sleeved with a reset spring 310 for resetting the slave piston rod 309, and the top of the air receiving cylinder 308 is connected to a vent pipe 311, through which Both ends of the air pipe 311 are connected to a spring tube 305 connected to the air supply pipe 304. When the counterweight block 200 moves downward, the two clamps 300 will be driven closer to each other, thereby clamping the material for weighing it. When the counterweight block 200 moves slowly upward, it will be weighed. At the same time, the continuous upward movement will cause the two clamps 300 to slowly move away from each other to put down the material, thereby completing a set of processes. At the same time, the air distribution pipe 415 can transfer the adsorption force generated by the vacuum pump 403 to the suction hole 302 to further increase the clamping force of the clamp 300.

[0047] The top of the inner frame 100 is connected to a plurality of air distribution pipes 415 , and the tops of the plurality of air distribution pipes 415 are connected to a plurality of hoses 416 connected to the clamping plates 300 . One side of the plurality of clamping plates 300 is provided with air intake holes 302 .

[0048] Specifically, when the packed paper pallet is located directly below the counterweight 200, the driving motor 402 is stopped to make the multiple conveying rollers 400 stationary. At this time, the stationary turntable 410 will make the multiple balls 412 move away from the blocking strip 408, thereby re-blocking the channel between the inner frame 100 and the conveying rollers 400. At this time, the gas in the inner frame 100 will be evacuated from the gas distribution pipe 415. At this time, the servo motor 202 can be turned on to drive the first sprocket 203 to rotate. The first sprocket 203 and the second sprocket 204 drive the shaft 205 to rotate through the chain transmission. The rotation of the shaft 205 will drive the third sprocket 206 to drive the lifting chain 201 to move, thereby controlling the counterweight 200 moves downward and gradually approaches the packed paper pallet. As the counterweight block 200 moves downward gradually, it drives the active piston rod 312 to slide in the air cylinder 303, and then air is sucked into the air pipe 304. At this time, the gas in the air receiving cylinder 308 is extracted, which will drive the piston ends of the two driven piston rods 309 to approach each other, so that the two clamping plates 300 are close to each other and thus resist the packed paper pallet. At the same time, the air suction in the suction hole 302 cooperates to fix the packed paper pallet. Then, the servo motor 202 is controlled to reverse and drive the counterweight block 200 to move upward, so that the packed paper pallet acts on the weighing device 307, thereby measuring the gravity of the packed paper pallet and judging whether the packing quantity is qualified.

[0049] In summary, the whole process from stopping the conveying roller 400, moving the counterweight 200 downward, clamping the paper pallet, weighing, releasing the paper pallet to restarting the conveying roller 400 is fully automated through the drive of the servo motor 202. This highly integrated automated process greatly improves production efficiency and accuracy, reduces manual intervention and errors, and the metering component can clamp the paper pallet when the counterweight 200 moves downward through the cooperation of the weighing device 307 and the air cylinder 308, and accurately weigh it during the upward movement. The design of the suction hole 302 and the air distribution pipe 415 enables the adsorption force generated by the vacuum pump 403 to be transmitted to the clamping plate 300, further enhancing the stability of clamping the paper pallet. The combination of the servo motor 202 and the lifting chain 201 allows the height of the counterweight 200 to be flexibly adjusted to accommodate paper pallets of different sizes and weights. At the same time, the design of the air cylinder 303 and the driven piston rod 309 also allows the clamping plate 300 to be fine-tuned according to the thickness of the paper pallet, improving the adaptability and flexibility of the system.

[0050] Example 3: Please refer to Figures 1 to 14 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a conveying method for producing biodegradable cake paper trays, comprising the following steps:

[0051] S1. When in use, first start the driving motor 402 to drive a single conveying roller 400 to rotate, so that the single conveying roller 400 rotates and the fourth sprocket 404 drives the transmission chain 405 to rotate, thereby driving multiple conveying rollers 400 to move synchronously, thereby driving the packed paper pallets on the multiple conveying rollers 400 to be conveyed;

[0052] S2. At the same time, the vacuum pump 403 is turned on to evacuate air from the inner frame 100. At this time, when the multiple conveying rollers 400 rotate, the rotating rod 407 inside them will be driven to rotate together with them. When the rotating rod 407 rotates, the rotating disk 410 will be driven to rotate, thereby generating centrifugal force. The centrifugal force acts on the counterweight ball 413 to move the movable block 411, thereby driving the ball 412 to contact one end of the blocking strip 408, thereby continuously pushing the blocking strip 408 to make it misaligned, thereby opening the channel between the inner frame 100 and the conveying roller 400, so that suction is generated in the conveying roller 400, thereby adsorbing the paper pallet box located on the conveying roller 400, and improving its conveying stability;

[0053] S3. When the packed paper pallet is located directly below the counterweight 200, the driving motor 402 is stopped to make the multiple conveying rollers 400 stationary. At this time, the stationary turntable 410 will make the multiple balls 412 move away from the blocking strip 408, thereby re-blocking the channel between the inner frame 100 and the conveying rollers 400. At this time, the gas in the inner frame 100 will be evacuated from the gas distribution pipe 415. At this time, the servo motor 202 can be turned on to drive the first sprocket 203 to rotate. The first sprocket 203 and the second sprocket 204 drive the shaft 205 to rotate through the chain transmission. The rotation of the shaft 205 will drive the third sprocket 206 to drive the lifting chain 201 to move, thereby controlling the counterweight. 200 moves downward and gradually approaches the packed paper pallet. As the counterweight 200 gradually moves downward, the active piston rod 312 is driven to slide in the air cylinder 303, and then the air is sucked in the air pipe 304. At this time, the gas in the air receiving cylinder 308 is extracted, which will drive the piston ends of the two driven piston rods 309 to approach each other, so that the two clamping plates 300 are close to each other and thus resist the packed paper pallet. At the same time, the air is sucked in the air hole 302 to fix the packed paper pallet. Then the servo motor 202 is controlled to reverse and drive the counterweight 200 to move upward, so that the packed paper pallet acts on the weighing device 307, so as to measure the gravity of the packed paper pallet and judge whether the packing quantity is qualified.

[0054] S4. As the counterweight 200 continues to move upward, the gas in the air cylinder 303 is also pushed by the active piston rod 312 and discharged into the air receiving cylinder 308, thereby driving the two driven piston rods 309 to move away from each other and releasing the fixation of the packed paper pallet. At the same time, the drive motor 402 is restarted to rotate the conveying roller 400, thereby reopening the passage between the inner frame 100 and the conveying roller 400. At this time, the suction force generated by the vacuum pump 403 will first draw air from the conveying roller 400, thereby causing the suction hole 302 to lose the suction force, causing the packed paper pallet to fall onto the conveying roller 400 for re-transportation.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for producing biodegradable paper cake trays, comprising an inner frame (100) and a frame well (101) fixedly connected to the outer surface thereof, characterized in that: A plurality of conveying rollers (400) for conveying materials are rotatably connected inside the inner frame (100); a counterweight (200) is arranged above the inner frame (100); a clamping plate (300) for clamping materials is arranged below the counterweight (200); a driving component for driving the counterweight (200) to rise and fall is arranged at the top of the frame well (101); a plurality of air holes (401) are provided inside the plurality of conveying rollers (400); both ends of the plurality of conveying rollers (400) are connected to the inner frame (100); an air pump (403) is fixedly connected to both sides of the inner frame (100); a ventilation component for connecting the inner frame (100) with the plurality of conveying rollers (400) is arranged inside the inner frame (100); and a metering component for weighing materials is arranged at the bottom of the counterweight (200); The ventilation assembly comprises a plurality of brackets (409) fixedly connected to the inner frame (100), the interiors of the plurality of brackets (409) are all fixedly connected to sealing strips (408), the interiors of the plurality of conveying rollers (400) are all fixedly connected to fixing frames (406), one end of the fixing frame (406) is fixedly connected to a rotating rod (407), one end of the rotating rod (407) is fixedly connected to a rotating disk (410), and the outer surface of the rotating disk (410) is provided with a power mechanism for pushing the plurality of sealing strips (408) to move; The power mechanism comprises a plurality of grooves formed on the outer surface of the rotating disk (410), wherein movable blocks (411) are disposed inside the plurality of grooves, wherein the tops of the plurality of movable blocks (411) are rotatably connected to balls (412), wherein the interiors of the plurality of movable blocks (411) are fixedly connected to counterweight beads (413), and wherein the interiors of the plurality of movable blocks (411) are fixedly connected to springs (414) fixedly connected to the movable blocks (411); The driving assembly comprises a top plate (102) fixedly connected to the top of the frame well (101); the top of the top plate (102) is rotatably connected to a shaft (205); the top of the top plate (102) is fixedly connected to a bearing seat (208); the outer surface of the shaft (205) is fixedly connected to a third sprocket (206); the inside of the bearing seat (208) is rotatably connected to an auxiliary sprocket (207); the top of the counterweight (200) is fixedly connected to a lifting chain (201) transmission-connected to the third sprocket (206); the end of the lifting chain (201) away from the counterweight (200) is fixedly connected to a positioning block (209); and the positioning block (209) is slidably connected to the frame well (101); A positioning bar (301) is fixedly connected to the top of the inner frame (100) to which the counterweight (200) is slidably connected, an air cylinder (303) is fixedly connected inside the positioning bar (301), an active piston rod (312) adapted thereto is slidably connected to the bottom of the air cylinder (303), the bottom of the active piston rod (312) is fixedly connected to the counterweight (200), a tension spring (313) is sleeved on the outer surface of the active piston rod (312) to reset the counterweight (200), and an air supply pipe (304) is fixedly connected to one side of the air cylinder (303).

2. The conveying device for producing biodegradable cake paper trays according to claim 1, characterized in that: The metering assembly comprises a plurality of weighing devices (307) fixedly connected to the bottom of the counterweight block (200), the bottoms of the plurality of weighing devices (307) being fixedly connected to a weighing plate (306), the inside of the weighing plate (306) being fixedly connected to an air receiving cylinder (308), both ends of the air receiving cylinder (308) being slidably connected to a slave piston rod (309) adapted thereto, and the slave piston rod (309) being fixedly connected to a clamping plate (300), the outer surface of the slave piston rod (309) being sleeved with a reset spring (310) for resetting the slave piston rod (309), the top of the air receiving cylinder (308) being connected to a vent pipe (311), and both ends of the vent pipe (311) being connected to a spring tube (305) connected to an air supply pipe (304).

3. The conveying device for producing biodegradable cake paper trays according to claim 1, characterized in that: A servo motor (202) is fixedly connected to the top of the top plate (102), a first sprocket (203) is fixedly connected to the output end of the servo motor (202), one end of the shaft (205) is fixedly connected to the second sprocket (204), and the first sprocket (203) is drivingly connected to the second sprocket (204).

4. The conveying device for producing biodegradable cake paper trays according to claim 2, characterized in that: The top of the inner frame (100) is connected to a plurality of air distribution pipes (415), the tops of the plurality of air distribution pipes (415) are connected to a plurality of hoses (416) connected to the clamping plate (300), and one side of the plurality of clamping plates (300) is provided with an air intake hole (302).

5. The conveying device for producing biodegradable cake paper trays according to claim 1, characterized in that: A driving motor (402) whose output end is fixedly connected to a conveying roller (400) is fixedly connected to the bottom of the inner frame (100), one end of each of the plurality of conveying rollers (400) is fixedly connected to a fourth sprocket (404), and a transmission chain (405) is sleeved on the outer surfaces of each of the plurality of fourth sprockets (404).

6. A conveying method for producing biodegradable paper cake trays, using the conveying device for producing biodegradable paper cake trays according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. When in use, firstly driving a plurality of conveying rollers (400) to rotate synchronously, thereby driving the packed paper pallets on the plurality of conveying rollers (400) to be conveyed; S2. At the same time, the ventilation component is controlled to open the passage between the inner frame (100) and the conveying roller (400), so that air is sucked in the conveying roller (400), thereby adsorbing the paper pallet package located on the conveying roller (400), thereby improving the stability of its conveying; S3. When the packed paper pallet is located directly below the counterweight (200), the operation of the multiple conveying rollers (400) is stopped, and the passage between the inner frame (100) and the conveying rollers (400) is blocked again. At this time, the gas in the inner frame (100) is evacuated from the gas distribution pipe (415). At this time, the driving component can be controlled to control the counterweight (200) to move downward and gradually approach the packed paper pallet. As the counterweight (200) gradually moves downward, the metering component is started, and the two clamps (300) are brought close to each other to contact the packed paper pallet. At the same time, the suction in the suction hole (302) is coordinated to fix the packed paper pallet, and it is determined whether the packing quantity is qualified.

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