Intelligent conveying system

Abstract

The invention discloses an intelligent conveying system, and relates to the technical field of food processing dried vegetable seasoning conveying, the intelligent conveying system comprises a cover plate set, a hopper set and a rotary lifting mechanism, the cover plate set comprises a working cover plate and a plurality of standby cover plates, and the working cover plate is provided with an air suction pipe, an air outlet pipe and a feeding pipe in a penetrating mode; the upper end of the air suction pipe is connected with the vacuumizing device, the upper end of the air outlet pipe is connected with the air outlet device, the upper end of the feeding pipe is connected with the storage box, the bottom face of the working cover plate is covered with a filter bag, the lower end of the air suction pipe and the lower end of the air outlet pipe extend into the filter bag, the lower end of the feeding pipe penetrates through the filter bag, and the hopper set is located below the cover plate set. The hopper set comprises a plurality of hoppers, the rotary lifting mechanism can drive the cover plate set to rotate and can also drive the cover plate set to ascend and descend, materials are sucked out of the material storage box in a pneumatic mode, the conveying efficiency is very high, the material conveying device is very suitable for conveying granular or blocky seasonings, and repeated labor of operators is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of conveying dried vegetable seasonings for food processing, and in particular to an intelligent conveying system. Background Art

[0002] Dried food seasonings are made from vegetables, melons, fruits, etc. as the main raw materials, and are processed into granular or block-shaped seasonings. In the field of food production, many raw materials or finished products are in granular or block form. In the production of dried food seasonings, the existing transportation methods include mechanical device movement, conveyor belts, manual handling, etc. These transportation methods are not efficient enough, resulting in low transportation efficiency and too little production capacity. Summary of the invention

[0003] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes an intelligent conveying system, which sucks materials out of the storage box by pneumatic means, has a very high transmission efficiency, is very suitable for conveying granular or blocky seasonings, and greatly reduces the repetitive work of operators.

[0004] According to the first aspect of the present invention, the intelligent conveying system includes: A cover plate set, comprising a working cover plate and a plurality of spare cover plates, wherein the working cover plate and the plurality of spare cover plates are arranged in a circumferential direction, the working cover plate is penetrated with an air suction pipe, an air outlet pipe and a feed pipe, the upper end of the air suction pipe is connected to a vacuum pumping device, the air suction pipe is provided with an air suction valve, the air suction valve is used to open or block the air suction pipe, the upper end of the air outlet pipe is connected to an air outlet device, the air outlet pipe is provided with an air outlet valve, the air outlet valve is used to open or block the air outlet pipe, the upper end of the feed pipe is connected to a material storage box, the feed pipe is provided with a feed valve, the feed valve is used to open or block the feed pipe, a filter bag is provided on a bottom cover of the working cover plate, the lower ends of the air suction pipe and the air outlet pipe extend into the filter bag, and the lower end of the feed pipe passes through the filter bag; A hopper set is located below the cover plate set, the hopper set includes a plurality of hoppers, the plurality of hoppers are arranged in a circumferential direction and correspond one to one to the working cover plate and the plurality of spare cover plates, an opening is provided at the upper end of the hopper, a rotatable discharge spring plate is provided in the hopper, the discharge spring plate is provided with an elastic member, a discharge port is provided at the bottom of the hopper, the discharge spring plate has an open position and a closed position, in the open position, the discharge spring plate opens the discharge port, in the closed position, the discharge spring plate closes the discharge port, in a natural state, the discharge spring plate is maintained in the closed position by the elastic force of the elastic member, when the hopper is in a negative pressure state, the discharge spring plate is in the closed position, when the hopper is in a normal pressure state and there is a certain amount of material in the hopper, the discharge spring plate is rotated downward by the gravity of the material and switches to the open position; The intelligent conveying system according to the embodiment of the present invention has at least the following beneficial effects: When performing the feeding operation, the rotary lifting mechanism drives the cover plate set to rotate in the circumferential direction, so that the working cover plate moves to the hopper that needs to be fed, and then the rotary lifting mechanism drives the cover plate set to descend, so that the bottom of the working cover plate covers the opening at the upper end of the hopper to form a sealed fit, and then the suction valve and the feed valve are opened, and the outlet valve is closed, the suction pipe and the feed pipe are connected, the outlet pipe is blocked, and then the vacuum device is started. The vacuum device sucks the air inside the hopper through the suction pipe, so that the inside of the hopper is in a negative pressure state, and the discharge spring plate is kept in the closed position by suction, thereby keeping the discharge port closed. At this time, the material in the storage box is sucked into the feed pipe by suction, and then enters the hopper. In this process, the material is sucked out of the storage box by pneumatic means, and the transmission efficiency is very high. It is very suitable for transmitting granular or block seasonings, which greatly reduces the repetitive labor of operators. In addition, the filter bag can separate the material from the suction pipe to prevent the material from being sucked into the suction pipe. In addition, after the suction is completed, the feed valve can be closed for a very short time and then the suction valve can be quickly closed. At this time, the feed pipe is cleaned. The remaining material in the pipe from the feed pipe to the feed valve is sucked into the hopper due to the original vacuum in the hopper, achieving the purpose of cleaning the feed pipe. Then the air outlet valve is opened to eliminate the negative pressure state inside the hopper. At this time, since there is a certain amount of material in the hopper, the weight of the material is greater than the elastic force of the elastic member, which causes the discharge spring plate to rotate downward to the open position. The discharge spring plate opens the discharge port, allowing the material to leave the hopper through the discharge port to achieve discharge. The intelligent conveying system of the present embodiment can not only efficiently transport materials, but also realize the cleaning function of the filter bag. After the feeding operation is completed, some materials will adhere to the filter bag and the filter bag needs to be cleaned. When performing the cleaning operation, the suction pipe and the feeding pipe are blocked, the air outlet pipe is connected, and then the air outlet device is turned on. The air outlet device blows air into the inner cavity of the filter bag through the air outlet pipe, causing the filter bag to expand and become larger. At this time, the material on the outer wall of the filter bag is pushed open and falls off, thereby achieving a cleaning effect on the filter bag.

[0005] According to some embodiments of the present invention, the rotary lifting mechanism includes a screw, a nut, a connecting frame, a fixed seat, a first motor and a second motor, the nut is threadedly connected to the screw, the connecting frame is fixedly connected to the nut, the connecting frame is fixedly connected to the cover plate set, the output shaft of the first motor is fixedly connected to the screw, the first motor is fixedly connected to the fixed seat, and the output shaft of the second motor is fixedly connected to the bottom of the fixed seat.

[0006] According to some embodiments of the present invention, an upper extending rod is provided at the top of the nut, a lower extending rod is provided at the bottom of the nut, a first infrared sensor is provided at the upper side of the fixing seat, and a second infrared sensor is provided at the lower side of the fixing seat, and when the first infrared sensor detects the upper extending rod or the second infrared sensor detects the lower extending rod, the first motor stops working.

[0007] According to some embodiments of the present invention, the screw rod is located in the fixing seat, the outer wall of the fixing seat is provided with a limiting groove extending in the up-down direction, and the connecting frame is passed through the limiting groove.

[0008] According to some embodiments of the present invention, the intelligent conveying system further comprises a controller, wherein the controller is configured to: In response to receiving a cleaning signal, a cleaning operation is performed, the cleaning operation including closing the feed valve and closing the air suction valve after waiting for a first time value, opening the air outlet device after waiting for a second time value, and closing the air outlet valve after continuously opening the air outlet valve for a second time value.

[0009] According to some embodiments of the present invention, each of the hoppers has a corresponding serial number, and the serial numbers of the plurality of hoppers increase along the circumferential direction of the hopper set. A third infrared sensor is provided in each of the hoppers, and the discharging spring plate is provided with a spring plate follower extension rod. When the discharging spring plate is in the closed position, the third infrared sensor detects the spring plate follower extension rod. After the cleaning operation is performed and the third infrared sensor detects the spring plate follower extension rod, the third infrared sensor sends a feeding signal to the controller, and the controller is configured as follows: In response to receiving the feeding signals of the plurality of the third infrared sensors in sequence, queuing the plurality of the feeding signals in the order of their appearance, and sequentially performing the feeding operation and the cleaning operation on the hoppers corresponding to the plurality of the third infrared sensors in the queue, wherein the feeding operation includes controlling the rotary lifting mechanism to drive the working cover plate to cover the opening of the corresponding hopper, opening the air suction valve and the feeding valve, closing the air outlet valve, and opening the vacuum device; In response to simultaneously receiving the feeding signals from a plurality of the third infrared sensors, the hoppers corresponding to the plurality of the third infrared sensors are queued according to the size of the serial numbers, and the feeding operation and the cleaning operation are performed on the hoppers corresponding to the plurality of serial numbers in sequence according to the queue.

[0010] According to some embodiments of the present invention, the working cover is provided with a cover extension rod, each of the hoppers is provided with a fourth infrared sensor, the fourth infrared sensor is used to detect the cover extension rod, and in the feeding operation, after the step of controlling the rotating lifting mechanism to drive the working cover to cover the opening of the corresponding hopper, the step further includes: And the fourth infrared sensor detects the cover plate extending rod.

[0011] According to some embodiments of the present invention, the controller includes a CPU module, an input module and an output module, and the intelligent conveying system also includes a touch screen, and the touch screen is electrically connected to the controller.

[0012] According to some embodiments of the present invention, the air suction pipe, the air outlet pipe and the feed pipe are configured as food-grade transparent PVC steel wire hoses.

[0013] According to some embodiments of the present invention, the working cover plate and the standby cover plate are both sealed with the corresponding hopper via a sealing ring.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A top view of a cover plate set of an intelligent conveying system according to some embodiments of the present invention; Figure 2 A schematic diagram of the structure of a working cover plate of an intelligent conveying system according to some embodiments of the present invention; Figure 3 It is a structural schematic diagram of a rotating lifting mechanism of an intelligent conveying system of some embodiments of the present invention; Figure 4 A schematic diagram of the structure of a hopper of an intelligent conveying system in some embodiments of the present invention; Figure 5 It is a structural schematic diagram of the cooperation between the working cover plate and the hopper of the intelligent conveying system of some embodiments of the present invention (the discharge spring plate is in the closed position); Figure 6 It is a structural schematic diagram of the cooperation between the working cover plate and the hopper of the intelligent conveying system of some embodiments of the present invention (the discharge spring plate is in the open position); Figure 7 Schematic diagram of the functional modules of the controller of the intelligent conveying system of some embodiments of the present invention.

[0016] Reference numerals: Workbench 0, working cover plate 1, spare cover plate 2, connecting frame 3, first motor 4, output shaft 41 of the first motor, second motor 5, rotating lifting mechanism 6, nut 60, screw 61, first infrared sensor 62, upper extension rod 63, lower extension rod 64, second infrared sensor 65, fixing seat 66, sealing ring 11, working cover plate surface 12, suction pipe 13, outlet pipe 14, mechanical connecting component 15, feed pipe 16, working cover plate 17, filter bag 18, cover plate extension rod 19, fourth infrared sensor 191, suction pipe 131, outlet pipe 141, feed pipe 161, suction valve 132, outlet valve 142, feed valve 162, hopper 7, discharge port 71, spring plate follower extension rod 72, discharge spring plate 73, connector 74, connecting rod 75, third infrared sensor 721. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] The embodiment of the present invention provides an intelligent conveying system, which includes a workbench 0, a cover plate set, a hopper set and a rotary lifting mechanism 6. The present invention mainly relates to the technical field of conveying dried vegetable seasonings for food processing.

[0019] Reference Figure 1 As shown, the workbench 0 is an annular structure, the cover plate set is located above the workbench 0, and the cover plate set includes a working cover plate 1 and a plurality of spare cover plates 2. The working cover plate 1 and the plurality of spare cover plates 2 are arranged along the circumferential direction. The working cover plate 1 and the spare cover plates 2 are a circular structure, the number of the working cover plate 1 is one, and the number of the spare cover plates 2 is five. Figure 2 and Figure 4As shown, the bottom of the working cover plate 17 and the spare cover plate 2 are both provided with a sealing ring 11, and the sealing ring 11 is used to seal with the hopper 7. The working cover plate 1 is penetrated with a suction pipe 13, an air outlet pipe 14 and a feed pipe 16. The bottom cover of the working cover plate 1 is provided with a filter bag 18. The upper end of the suction pipe 13 is connected to the vacuum device, and the lower end of the suction pipe 13 extends into the filter bag 18 to communicate with the inner cavity of the filter bag 18. The suction pipe 131 is provided with a suction valve 132, and the suction valve 132 is used to conduct or block the suction pipe 131. The upper end of the air outlet pipe 14 is connected to the air outlet device, the lower end of the air outlet pipe 14 extends into the filter bag 18 to communicate with the inner cavity of the filter bag 18, the air outlet pipe 141 is provided with an air outlet valve 142, the air outlet valve 142 is used to conduct or block the air outlet pipe 141, the upper end of the feed pipe 16 is connected to the storage box, the lower end of the feed pipe 16 passes through the filter bag 18, the feed pipe 16 is not directly connected to the inner cavity of the filter bag 18, the feed pipe 161 is provided with a feed valve 162, the feed valve 162 is used to conduct or block the feed pipe 161. The working cover plate 1 has a feeding function, and the other spare cover plates 2 are mainly used to seal the hopper 7.

[0020] It can be understood that the air suction pipe 13, the air outlet pipe 14 and the feed pipe 16 are configured as food-grade thickened transparent PVC steel wire hoses, which will not cause pollution to the materials.

[0021] The hopper set is arranged on the workbench 0, and the hopper set is located below the cover set. The hopper set includes a plurality of hoppers 7, and the plurality of hoppers 7 are arranged along the circumferential direction and correspond one to one to the working cover 1 and the plurality of spare cover 2. There are six hoppers 7, which correspond one to one to the six cover. Figure 4 As shown, the upper end of the hopper 7 is provided with an opening, a rotatable discharge spring plate 73 is provided in the hopper 7, an inclined connecting rod 75 is provided in the hopper 7, the discharge spring plate 73 is rotatably connected to the connecting rod 75 through a connector 74, an elastic member such as a torsion spring can be arranged between the discharge spring plate 73 and the connector 74, and a torsion force can be provided to the discharge spring plate 73, a discharge port 71 is provided at the bottom of the hopper 7, and the discharge spring plate 73 has an open position and a closed position. Figure 4 In the embodiment, the discharge spring plate 73 is in the closed position, and the discharge spring plate 73 closes the discharge port 71. Figure 6 In the embodiment, the discharging spring plate 73 is in the open position, and the discharging spring plate 73 opens the discharging port 71. In the natural state, the discharging spring plate 73 is kept in the closed position by the elastic force of the torsion spring.

[0022] The rotating lifting mechanism 6 can drive the cover plate set to rotate in a circular direction, and can also drive the cover plate set to perform lifting motion, so that the working cover plate 1 is sealed with the opening of one of the hoppers 7, and at the same time, multiple spare cover plates 2 are sealed with the openings of other hoppers 7 one by one.

[0023] When performing the feeding operation, the rotary lifting mechanism 6 drives the cover plate set to rotate in the circumferential direction, so that the working cover plate 1 moves to the hopper 7 where the feeding is required, and then the rotary lifting mechanism 6 drives the cover plate set to descend. Figure 5 As shown, the bottom of the working cover plate 1 is covered with the opening at the upper end of the hopper 7 to form a sealing fit, and then the suction valve 132 and the feed valve 162 are opened, and the outlet valve 142 is closed, the suction pipe 13 and the feed pipe 16 are connected, and the outlet pipe 14 is blocked, and then the vacuum device is started. The vacuum device sucks the air inside the hopper 7 through the suction pipe 13, so that the inside of the hopper 7 is in a negative pressure state, and the discharge spring plate 73 is maintained in the closed position by the suction force, thereby keeping the discharge port 71 closed. At this time, the material in the storage box is sucked into the feed pipe 16 by the suction force, and then enters the hopper 7. In this process, the material is pneumatically sucked out of the storage box, and the transmission efficiency is very high. It is very suitable for transmitting granular or block seasonings, which greatly reduces the repetitive work of operators. In addition, the filter bag 18 can separate the material from the suction pipe 13. The filter holes of the filter bag 18 are small and can only allow air to pass through. The material cannot pass through the filter bag 18, which can prevent the material from being sucked into the suction pipe 13. In addition, after the feeding is completed, the feed valve 162 can be closed for a very short time and then the suction valve 132 can be quickly closed. For example, the feed valve 162 can be closed for a few hundred milliseconds and then the suction valve 132 is closed to enter the link of cleaning the feed pipe 16. The remaining material in the section from the feed pipe 16 to the feed valve 162 is sucked into the hopper 7 because of the original vacuum in the hopper 7, thereby achieving the purpose of cleaning the feed pipe 16. Then, the air outlet valve 142 is opened to eliminate the negative pressure state inside the hopper 7. At this time, Figure 6 As shown, since there is a certain amount of material in the hopper 7, the weight of the material is greater than the elastic force of the torsion spring, causing the discharge spring plate 73 to rotate downward to the open position, and the discharge spring plate 73 opens the discharge port 71, so that the material can leave the hopper 7 through the discharge port 71 to achieve discharge.

[0024] The intelligent conveying system of this embodiment can not only efficiently transport materials, but also realize the cleaning function of the filter bag 18. After the feeding operation is performed, some materials will adhere to the filter bag 18, and the filter bag 18 needs to be cleaned. When performing the cleaning operation, the air outlet valve 142 is opened first, and then the air suction valve 132 and the feed valve 162 are closed, the air suction pipe 13 and the feed pipe 16 are blocked, the air outlet pipe 14 is conducted, and then the air outlet device is opened, and the air outlet device blows air into the inner cavity of the filter bag 18 through the air outlet pipe 14, so that the filter bag 18 expands and becomes larger. At this time, the material on the outer wall of the filter bag 18 is pushed open and falls off, thereby achieving the cleaning effect of the filter bag 18.

[0025] In addition, the hopper 7 of the present embodiment can realize automatic discharging of materials through the discharging spring plate 73, and there is no need to arrange an additional driving device to drive the discharging spring plate 73 to move, which can save manufacturing costs.

[0026] The specific structure of the rotary lifting mechanism 6 is described below. Figure 3 As shown, the rotary lifting mechanism 6 includes a screw rod 61, a nut 60, a connecting frame 3, a fixing seat 66, a first motor 4 and a second motor 5. The nut 60 is threadedly connected to the screw rod 61, the connecting frame 3 is fixedly connected to the nut 60, the connecting frame 3 is fixedly connected to the cover plate set, the first motor 4 is fixedly connected to the fixing seat 66, the output shaft of the first motor 4 is fixedly connected to the screw rod 61, and the output shaft of the second motor 5 is fixedly connected to the bottom of the fixing seat 66. The screw rod 61 is located inside the fixing seat 66. The outer wall of the fixing seat 66 is provided with a limiting groove extending in the up and down directions. The connecting frame 3 is penetrated in the limiting groove, so that the connecting frame 3 can only move up and down relative to the fixing seat 66. When the screw rod 61 rotates, due to the limiting effect of the limiting groove, the nut 60 will rotate relative to the screw rod 61. When the second motor 5 drives the screw 61 to rotate, the nut 60 can only move up and down. Refer to Figure 2 As shown, the cover plate is connected to the connecting frame 3 via a mechanical connecting member 15 .

[0027] During operation, if the cover plate set is to be driven to rise or fall, the first motor 4 is started, and the output shaft of the first motor 4 drives the screw 61 to rotate, so that the nut 60 slides up and down relative to the screw 61, thereby driving the cover plate set to rise or fall through the connecting frame 3. If the cover plate set is to be driven to rotate, the second motor 5 is started, and the output shaft of the second motor 5 drives the fixing seat 66 to rotate, thereby driving the cover plate set as a whole to rotate in the circumferential direction.

[0028] In some other embodiments, the rotating and lifting mechanism 6 may also adopt other mechanisms to achieve the rotating and lifting functions.

[0029] Reference Figure 3 As shown, in order to detect whether the cover set is lifted or lowered into place, an upper extending rod 63 is provided on the top of the nut 60, a lower extending rod 64 is provided on the bottom of the nut 60, a first infrared sensor 62 is provided on the upper side of the fixing seat 66, and a second infrared sensor 65 is provided on the lower side of the fixing seat 66. When the first infrared sensor 62 detects the upper extending rod 63, it indicates that the cover set has risen into place, or, when the second infrared sensor 65 detects the lower extending rod 64, it indicates that the cover set has dropped into place. In both cases, the first motor 4 is controlled to stop working.

[0030] In some embodiments, the intelligent conveying system further includes a controller, which is used to control the feeding operation and the cleaning operation, and the controller is configured to perform the following steps: Step S100: In response to receiving a cleaning signal, a cleaning operation is performed, the cleaning operation including closing the feed valve 162 and closing the air suction valve 132 after waiting for a first time value, opening the air outlet device after waiting for a second time value, and closing the air outlet valve 142 after continuously opening the air outlet valve 142 for a third time value.

[0031] In this embodiment, the cleaning operation is performed after the suction is completed. During the cleaning operation, the feed valve 162 can be closed for a very short time and then the suction valve 132 can be quickly closed. At this time, the feed pipe 16 is cleaned. The remaining material in the section from the feed pipe 16 to the feed valve 162 is sucked into the hopper 7 due to the original vacuum in the hopper 7, thereby achieving the purpose of cleaning the feed pipe 16. The third time value can be 1s to 3s, the first time value can be 500ms to 800ms, and the second time value can be 500ms to 800ms.

[0032] In some embodiments, each hopper 7 has a corresponding serial number, and the serial numbers of the plurality of hoppers 7 are increased along the circumferential direction of the hopper set. For example, the plurality of hoppers 7 are numbered ①, ②, ③, ④, ⑤, ⑥, respectively. Figure 3 As shown, the ejection spring plate 73 is provided with an ejection plate follower extension rod 72. When the ejection spring plate 73 rotates, the ejection plate follower extension rod 72 will rotate with the ejection spring plate 73. Each hopper 7 is provided with a third infrared sensor 721, that is, there are multiple third infrared sensors 721. The angle between the ejection plate follower extension rod 72 and the horizontal plane is 30° to 60°. Figure 5 As shown, when the angle is 30°, the discharge spring plate 73 completely closes the discharge port 71, that is, the discharge spring plate 73 is in the closed position. At this time, the third infrared sensor 721 can detect that the spring plate follows the extended rod 72, indicating that the hopper 7 is in an empty state; Figure 6 As shown, when the angle is greater than 30°, the spring plate follower extension rod 72 is at a position outside the third infrared sensor 721, and the third infrared sensor 721 cannot detect the spring plate follower extension rod 72, which means that there is material in the hopper 7. The gravity of the material causes the discharge spring plate 73 to rotate downward, and the discharge spring plate 73 partially opens or completely opens the discharge port 71. That is, the third infrared sensor 721 can be used to detect whether the hopper 7 is in an empty state. After the cleaning operation is performed and the third infrared sensor 721 detects that the hopper 7 is in an empty state, it means that the hopper 7 has a feeding demand. The third infrared sensor 721 will send a feeding signal to the controller, so that the controller will perform a feeding operation on the corresponding hopper 7 according to the feeding signal. The controller will continue to collect signals from the third infrared sensors 721 in multiple hoppers 7 to determine whether multiple hoppers 7 are short of material.

[0033] In some embodiments, the controller is configured to perform the steps described below.

[0034] Step S200: In response to receiving the feeding signals of multiple third infrared sensors 721 in sequence, the multiple feeding signals are queued in the chronological order of their appearance, and feeding operations and cleaning operations are performed on the hoppers 7 corresponding to the multiple third infrared sensors 721 in sequence according to the queue. The feeding operation includes controlling the rotating lifting mechanism 6 to drive the working cover 171 to cover the corresponding opening of the hopper 7, opening the suction valve 132 and the feed valve 162, closing the air outlet valve 142, and turning on the vacuum device.

[0035] In this step, if the feed signals from multiple third infrared sensors 721 are received in sequence, they can be queued in the order of their appearance. Each feed signal represents that one of the hoppers 7 has a feed demand. The controller performs feeding and cleaning operations on the multiple queued hoppers 7 in sequence according to the order of the queue. After the cleaning operation is completed, the multiple third infrared sensors 721 detect whether the hopper 7 is in an empty state.

[0036] Step S300: In response to simultaneously receiving the feeding signals of multiple third infrared sensors 721, the hoppers 7 corresponding to the multiple third infrared sensors 721 are queued according to the size of the serial numbers, and the feeding operation and the cleaning operation are performed on the hoppers 7 corresponding to the multiple serial numbers in sequence according to the queue.

[0037] In this step, if feeding signals from multiple third infrared sensors 721 are received at the same time, the hoppers 7 can be queued up first according to their serial numbers. The controller performs feeding and cleaning operations on the queued hoppers 7 in sequence according to the order of the serial numbers. For example, from small to large, the controller performs feeding and cleaning operations on the hoppers 7 corresponding to serial numbers ①, ②, ③, ④, ⑤, and ⑥ in sequence. After the cleaning operation is completed, the multiple third infrared sensors 721 detect whether the hopper 7 is in an empty state.

[0038] It should also be noted that, with respect to the above-mentioned steps S200 and S300, after each pair of hoppers 7 has completed the feeding operation and the cleaning operation in sequence, a plurality of third infrared sensors 721 are used to perform an empty material detection on other hoppers 7 outside the queue. When it is detected that the hoppers 7 outside the queue are in an empty material state, the corresponding third infrared sensors 721 will send out a feeding signal. If these feeding signals are sent out in sequence, the controller will sequentially arrange these hoppers 7 into a new queue in the order in which these feeding signals appear. If these feeding signals are sent out at the same time, the controller will sequentially arrange these hoppers 7 into a new queue in the order in which their serial numbers are large or small. The hopper 7 is placed in a new queue, that is, a new queue may be formed after each pair of hoppers 7 completes the feeding operation and the cleaning operation in turn, which depends on whether the other hoppers 7 are in an empty state at this time. It should be noted that this new queue is located at the end of the previous queue. When the controller executes the last queue and then executes the new queue, it can also be understood that the hopper 7 currently detected in the empty state is placed at the end of the queue of the hopper 7 detected in the empty state last time, so that the feeding operation and the cleaning operation are performed on multiple hoppers 7 in the empty state in turn. In this way, the control operation can be reasonably planned, thereby improving the transportation efficiency.

[0039] Reference Figure 5 As shown, in some embodiments, the working cover plate 1 is provided with a cover plate extension rod 19, and the upper end of each hopper 7 is provided with a fourth infrared sensor 191, and the fourth infrared sensor 191 is used to detect the cover plate extension rod 19, so as to judge whether the working cover plate 1 is moved in place, so that the working cover plate 1 corresponds to the position of the hopper 7 that needs to be fed. In the above-mentioned feeding operation step, the rotating lifting mechanism 6 is controlled to drive the working cover plate 1 to cover the opening of the corresponding hopper 7, and this step also includes: Step S110 : enabling the fourth infrared sensor 191 to detect the cover extension rod 19 .

[0040] In this embodiment, it can be ensured that the working cover plate 1 moves into place during the feeding process, and that the subsequent covering hopper 7 is in place, so that the seal is better and air leakage is avoided.

[0041] Reference Figure 7 As shown, in some embodiments, the controller includes a CPU module, an input module and an output module, and the intelligent conveying system also includes a touch screen, which is electrically connected to the controller, and the input module is electrically connected to the above-mentioned infrared sensors to receive signal input, and the output module is electrically connected to the first motor 4, the second motor 5, the air suction valve 132, the air outlet valve 142 and the feed valve 162 to output control signals to control the actions of each component, and the touch screen can display various information states to achieve effective monitoring, and the touch screen can input control signals to control each component.

[0042] In the following embodiments, a complete control flow of the controller will be given.

[0043] Step S1: Initialize the cover plate set, close the air suction valve 132, the air outlet valve 142 and the feed valve 162, control the first motor 4 to drive the cover plate set to rise and control the second motor 5 to drive the cover plate set to rotate, so that the cover plate set moves to the initialization position; Step S2: collecting the material level signal of the third infrared sensor 721 of the hopper 7, and sorting them according to the material shortage order of the hopper 7, determining the hopper 7 currently corresponding to the working cover plate 1, and planning the movement path of the working cover plate 1 accordingly; Step S3: Control the second motor 5 to drive the working cover plate 1 to rotate to the position of the hopper 7, control the first motor 4 to drive the working cover plate 1 to descend, and make the lower extension rod 64 of the nut 60 descend to the second infrared sensor 65, so that the working cover plate 1 is in close contact with the current hopper 7 to achieve a sealing effect; Step S4: Open the suction valve 132, pump the hopper 7 into a negative pressure state, and open the feed valve 162 to suck the material. The suction takes 15s-20s, and then clean the feed pipe 16. First, turn off the feed valve 162, wait for 5-7s, and then close the suction valve 132 and the vacuum device. The remaining material in the section from the feed pipe 16 to the feed valve 162 is sucked into the hopper 7 due to the original vacuum in the hopper 7, thereby achieving the purpose of cleaning the feed pipe 16. Step S5: After the process of cleaning the feed pipe 16 is completed, wait for 1 second before opening the air outlet valve 142 to clean the filter bag 18 and eliminate the negative pressure state in the hopper 7. This process takes 500ms-800ms; Step S6: After the filter bag 18 is cleaned, the air suction valve 132 is closed, and at the same time, it is determined whether the hopper 7 is still short of material; Step S7: If the hopper 7 is out of material, repeat steps S4, S5, and S6; Step S8: If the hopper 7 is not short of material, determine whether other hoppers 7 are short of material through the sorting system; Step S9: If the other hoppers 7 are out of material, repeat steps S2, S3, S4, S5, S6, S7, and S8; Step S10: If other hoppers 7 are not short of material, repeat step S1.

[0044] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Intelligent conveying system, characterized by: include: A cover plate set, comprising a working cover plate and a plurality of spare cover plates, wherein the working cover plate and the plurality of spare cover plates are arranged in a circumferential direction, the working cover plate is penetrated with an air suction pipe, an air outlet pipe and a feed pipe, the upper end of the air suction pipe is connected to a vacuum pumping device, the air suction pipe is provided with an air suction valve, the air suction valve is used to open or block the air suction pipe, the upper end of the air outlet pipe is connected to an air outlet device, the air outlet pipe is provided with an air outlet valve, the air outlet valve is used to open or block the air outlet pipe, the upper end of the feed pipe is connected to a material storage box, the feed pipe is provided with a feed valve, the feed valve is used to open or block the feed pipe, a filter bag is provided on a bottom cover of the working cover plate, the lower ends of the air suction pipe and the air outlet pipe extend into the filter bag, and the lower end of the feed pipe passes through the filter bag; A hopper set is located below the cover plate set, the hopper set includes a plurality of hoppers, the plurality of hoppers are arranged in a circumferential direction and correspond one to one to the working cover plate and the plurality of spare cover plates, an opening is provided at the upper end of the hopper, a rotatable discharge spring plate is provided in the hopper, the discharge spring plate is provided with an elastic member, a discharge port is provided at the bottom of the hopper, the discharge spring plate has an open position and a closed position, in the open position, the discharge spring plate opens the discharge port, in the closed position, the discharge spring plate closes the discharge port, in a natural state, the discharge spring plate is maintained in the closed position by the elastic force of the elastic member, when the hopper is in a negative pressure state, the discharge spring plate is in the closed position, when the hopper is in a normal pressure state and there is a certain amount of material in the hopper, the discharge spring plate is rotated downward by the gravity of the material and switches to the open position; The rotary lifting mechanism can drive the cover plate set to rotate along the circumferential direction, and can also drive the cover plate set to perform lifting movement, so that the working cover plate is sealed and matched with the opening of one of the hoppers. At the same time, multiple spare cover plates are sealed and matched with the openings of other hoppers one by one.

2. The intelligent conveying system according to claim 1, characterized in that: The rotary lifting mechanism includes a screw, a nut, a connecting frame, a fixed seat, a first motor and a second motor. The nut is threadedly connected to the screw, the connecting frame is fixedly connected to the nut, the connecting frame is fixedly connected to the cover plate set, the output shaft of the first motor is fixedly connected to the screw, the first motor is fixedly connected to the fixed seat, and the output shaft of the second motor is fixedly connected to the bottom of the fixed seat.

3. The intelligent conveying system according to claim 2, characterized in that: An upper extending rod is provided at the top of the nut, a lower extending rod is provided at the bottom of the nut, a first infrared sensor is provided on the upper side of the fixing seat, and a second infrared sensor is provided on the lower side of the fixing seat. When the first infrared sensor detects the upper extending rod or the second infrared sensor detects the lower extending rod, the first motor stops working.

4. The intelligent conveying system according to claim 2, characterized in that: The screw rod is located in the fixing seat, the outer wall of the fixing seat is provided with a limiting groove extending in the up-down direction, and the connecting frame is passed through the limiting groove.

5. The intelligent conveying system according to claim 1, characterized in that: The intelligent conveying system further includes a controller, which is configured to: In response to receiving a cleaning signal, a cleaning operation is performed, the cleaning operation including closing the feed valve and waiting for a first time value before closing the air suction valve, waiting for a second time value before opening the air outlet device, and continuously opening the air outlet valve for a third time value before closing the air outlet valve.

6. The intelligent conveying system according to claim 5, characterized in that: Each of the hoppers has a corresponding serial number, and the serial numbers of the plurality of hoppers are increased along the circumferential direction of the hopper set. A third infrared sensor is provided in each of the hoppers, and the discharging spring plate is provided with a spring plate follower extension rod. When the discharging spring plate is in the closed position, the third infrared sensor detects the spring plate follower extension rod. After the cleaning operation is performed and the third infrared sensor detects the spring plate follower extension rod, the third infrared sensor sends a feeding signal to the controller, and the controller is configured as follows: In response to receiving the feeding signals of the plurality of the third infrared sensors in sequence, queuing the plurality of the feeding signals in the order of their appearance, and sequentially performing the feeding operation and the cleaning operation on the hoppers corresponding to the plurality of the third infrared sensors in the queue, wherein the feeding operation includes controlling the rotary lifting mechanism to drive the working cover plate to cover the opening of the corresponding hopper, opening the air suction valve and the feeding valve, closing the air outlet valve, and opening the vacuum device; In response to simultaneously receiving the feeding signals from a plurality of the third infrared sensors, the hoppers corresponding to the plurality of the third infrared sensors are queued according to the size of the serial numbers, and the feeding operation and the cleaning operation are performed on the hoppers corresponding to the plurality of serial numbers in sequence according to the queue.

7. The intelligent conveying system according to claim 6, characterized in that: The working cover is provided with a cover extension rod, each of the hoppers is provided with a fourth infrared sensor, and the fourth infrared sensor is used to detect the cover extension rod. In the feeding operation, after the step of controlling the rotating lifting mechanism to drive the working cover to cover the opening of the corresponding hopper, the step further includes: The fourth infrared sensor is enabled to detect the cover plate extending rod.

8. The intelligent conveying system according to claim 5, characterized in that: The controller includes a CPU module, an input module and an output module. The intelligent conveying system also includes a touch screen, which is electrically connected to the controller.

9. The intelligent conveying system according to claim 1, characterized in that: The air suction pipe, the air outlet pipe and the feed pipe are configured as food-grade transparent PVC steel wire hoses.

10. The intelligent conveying system according to claim 1, characterized in that: The working cover plate and the standby cover plate are both sealed with the corresponding hopper via a sealing ring.

Images