Error-proof feeding system and feeding method

Abstract

The invention relates to the technical field of medicine preparation, and provides an error prevention feeding system and method, the system comprises a feeding platform, a preparation tank, a code scanner and a controller, the feeding platform is provided with a feeding port, the feeding port is connected with a feeding pipeline, the code scanner is arranged at the feeding platform, the code scanner is in electric signal connection with the input end of the controller, and the controller is connected with the preparation tank. The code scanner identifies a material package identification code and transmits material information contained in the identification code to the controller, a formula and a feeding sequence are preset in the controller, and after the controller determines that a current material belongs to the formula and conforms to the feeding sequence, the controller sends a signal that the next material can be fed; otherwise, a feeding error warning is given, and the next operation of the system is suspended. According to the system, the manual feeding process is controlled through automatic control, and the problem that the prepared liquid is abandoned is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medicine preparation, and in particular to an error-proof feeding system and an error-proof feeding method. Background Art

[0002] In the process of drug manufacturing, the active ingredients of drugs need to undergo chemical reactions before they can be obtained. Therefore, it is necessary to master the input amount and order of raw materials. Now a liquid preparation system is used, which adds the required raw materials into the preparation tank according to the needs, and adds injection water. After stirring, heating or refrigeration, sterilization and filtration, it is prepared into a medicine that meets the requirements. During the raw material feeding process, the operator is still required to add materials manually. Regarding the manual feeding steps, the current technology basically has no program restrictions, and the feeding operation is completely dependent on the self-discipline of the operator. For this reason, the feeding process cannot be verified afterwards. The accuracy of manual feeding is related to whether the liquid preparation meets the requirements. For example, if the operator makes any error in the feeding type, feeding weight or feeding order, the entire tank of liquid will be scrapped, which will cause a large economic loss. Therefore, how to control the accuracy of manual feeding in the entire liquid preparation process is an urgent problem that the current liquid preparation system needs to solve. Summary of the invention

[0003] The present invention is intended to provide an error-proof feeding system to solve the problem that the entire tank of liquid material will be scrapped when the wrong material or the wrong order occurs during manual feeding.

[0004] In order to solve the above problems, the present invention provides an error-proof feeding system, including a feeding platform, a preparation tank, a scanner and a controller. The feeding platform is provided with a feeding port, and the feeding port is connected to a feeding pipe for introducing materials into the preparation tank. The scanner is arranged at the feeding platform, and the scanner is arranged at the feeding platform. The electrical signal of the scanner is connected to the input end of the controller. The scanner identifies the material packaging identification code, and transmits the material type and material weight information contained in the identification code to the controller. The controller is preset with a formula, and the formula includes material type, material weight and material delivery sequence information. The controller determines whether the material is the material in the current material delivery sequence, and determines whether the material weight information is correct; when the material is confirmed to be the material in the current delivery sequence and the weight is correct, the controller sends a signal that the next material delivery can be carried out; otherwise, a feeding error warning is issued.

[0005] The principle and advantage of this solution are: in the liquid medicine configuration of medicines, the control process for the manual feeding link is as follows: first, the identification code on the material packaging is scanned by a barcode scanner to obtain the material name and weight. The barcode scanner transmits the material information to the controller, and the controller verifies whether the current material is the material in the current order in the formula, and verifies whether the weight matches the weight in the formula. After the verification is correct, the controller sends a signal that the feeding can be done, and the feeding personnel can put the material into the feeding port. Otherwise, the controller sends a feeding error warning and suspends the next step of operation until the error is corrected before the next step of feeding can be carried out.

[0006] The barcode scanner obtains material information directly from the material packaging and presets the formula in the controller. The controller verifies each manual feeding. Only after the verification is correct, the controller sends a feeding signal, and the feeding personnel can put the material into the feeding port. Otherwise, the controller sends a feeding error warning and suspends the next step of operation until the error is corrected. Then the next feeding can be carried out, thereby avoiding the problem of the prepared liquid being invalidated due to the feeding personnel throwing the wrong material or the wrong order.

[0007] Furthermore, a feeding assembly is provided between the preparation tank and the feeding pipe, and the feeding assembly includes a support frame and a feeding hopper. The feeding hopper is hinged on both sides of the support frame, and the preparation tank is directly below the feeding hopper. The feeding hopper is connected to a feeding cylinder that drives it to rotate, and a feeding solenoid valve is connected to the air path of the feeding cylinder. A weighing sensor is provided in the feeding hopper, and the electrical signal of the weighing sensor is connected to the input end of the controller, and the feeding solenoid valve is connected to the output end of the controller. The weighing sensor is used to obtain the weight of the current material, and the controller is used to determine again whether the current material weight meets the preset material weight. When it meets the preset material weight, the controller controls the feeding solenoid valve to operate, and the feeding hopper puts the current material into the preparation tank.

[0008] The weighing sensor in the feeding hopper checks the weight of the material again. After confirming that the weight is the same as the preset value, the controller controls the feeding solenoid valve to operate, and the feeding cylinder drives the feeding hopper to flip, and the material is put into the preparation tank. The code scanning verification and the weighing sensor verification form a double verification. During the second verification, the feeding action is only started when the weighing sensor obtains the correct material weight, which further reduces the chances of the feeding personnel throwing the wrong materials or the wrong sequence.

[0009] Furthermore, an inner liner is installed in the feeding hopper, and the weighing sensor is arranged between the feeding hopper and the inner liner. The material is carried by the inner liner, and the weighing sensor is arranged between the feeding hopper and the inner liner. The increase of the material in the inner liner will cause the signal of the weighing sensor to change, and the material is prevented from contacting the weighing sensor through the isolation of the inner liner.

[0010] Furthermore, the feeding platform is provided with a confirmation button for easy operation by the feeding personnel, the electrical signal of the confirmation button is connected to the input end of the controller, the end of the feeding pipe is connected to a temporary storage tank, the bottom of the temporary storage tank is connected to a feeder, and the electrical signal of the feeder is connected to the output end of the controller. After the controller obtains the signal of the confirmation button, the controller controls the feeder to continue feeding, and when the weighing sensor senses that the weight of the material in the feeding hopper reaches a preset weight, the controller controls the feeder to stop feeding.

[0011] After the feeding personnel presses the confirmation button to confirm that the material has entered the temporary storage tank, the controller controls the feeder to work, and the feeder feeds the material into the feeding hopper at a uniform speed. When the weighing sensor senses that the weight of the material in the feeding hopper reaches the preset weight, the controller controls the feeder to stop feeding. Even if the feeding personnel feed the wrong material into the temporary storage tank, they only need to pause the feeding step and clean out the wrong material in the temporary storage tank. If too much material is fed, the feeder can be closed in time through the feedback of the weighing sensor, and the first excessive feeding can be corrected.

[0012] Furthermore, a residual material recovery pipe is provided in the temporary storage tank, the pipe mouth of the residual material recovery pipe is at the bottom of the temporary storage tank, the residual material recovery pipe is connected to a recovery negative pressure fan, and the electrical signal of the recovery negative pressure fan is connected to the signal output end of the controller.

[0013] When a feeding error occurs or logistics needs to be recovered, the recovery negative pressure fan generates suction, and the material in the temporary storage tank is recovered from the residual material recovery pipe.

[0014] Furthermore, a purge ring is provided on the upper edge of the feeding hopper, and air holes are provided on the purge ring. The air outlet direction of the air holes is toward the inner tank. The purge ring is connected to a dust removal fan through a pipeline, and the electrical signal of the dust removal fan is connected to the signal output end of the controller.

[0015] The feeding hopper is the final weight verification container for different materials. In order to avoid the influence of residual materials from the previous process, the dust removal fan is started to clean the materials in the inner tank after each feeding.

[0016] Furthermore, dust removal nozzles for removing dust on the feeding platform are provided on the inner sides around the feeding platform, and the dust removal nozzles are connected to dust removal solenoid valves.

[0017] After each feeding is completed, it is inevitable that some materials will be scattered on the feeding platform. The dust removal nozzle works after each feeding is completed, so as to ensure that when feeding, the materials scattered on the feeding platform will not be mistakenly thrown into the feeding port.

[0018] Furthermore, a display screen is provided at the feeding platform, and the display screen is connected to the controller for communication. The feeding information is synchronously displayed to the feeding personnel through the display screen, and the display screen is used to inform whether there is any misoperation.

[0019] The present application also provides an error-proof feeding method for the error-proof feeding system, and the specific steps are as follows: Step S01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step S02: The controller selects the corresponding recipe information according to the preparation requirements. Step S03: The barcode scanner scans the identification code on the package of the material to be fed, and obtains the type and weight information of the material to be fed; Step S04: The barcode scanner transmits the information of the material to be fed to the controller, and the controller determines whether the material to be fed matches the material in the current order in the preset formula. If they match, the controller issues a feeding instruction, otherwise the controller outputs an alarm signal. Step S05: The controller issues a feeding instruction, and the feeding personnel feed the materials. After the feeding is completed, the confirmation button is clicked. Step S06: After receiving the confirmation button signal, the controller opens the feeder, and the feeder puts the material in the temporary storage tank into the feeding hopper; Step S07: The weighing sensor weighs the material put into the feeder in real time, and the feeder is immediately closed when the weight of the material reaches a preset amount; Step S08: The controller controls the feeding cylinder to feed the material in the feeding hopper into the preparation tank; Repeat step S03 to step S08: add each material into the preparation tank according to the order of the formula. After the material is added into the preparation tank, wait for the material to be fully dissolved before adding the next material.

[0020] The identification code on the packaging of the materials to be put in is generated by the batching department after the weight of the materials to be put in and the packaging of the materials to be put in are determined in advance according to the production plan and the formula content. By configuring the raw materials to be used in advance, there is no need for the feeding personnel to weigh them on site, which not only reduces the weight error of the feeding, but also reduces the workload of the feeding personnel.

[0021] Furthermore, considering the loss during transportation, each material is provided with a corresponding surplus during preparation. When all materials involved in a formula are added according to the confirmed amount, the negative pressure fan is started to recover the remaining materials in the temporary storage tank. This avoids the generation of impurities when preparing a new solution next time. After the current formula is prepared, it also includes the step of recovering the residual materials in the temporary storage tank. The negative pressure is generated by the recovery negative pressure fan, and the residual material recovery pipe recovers the residual materials from the temporary storage tank.

[0022] Furthermore, the controller includes a traceability log file for recording the data of each step of execution, so as to facilitate the auditors to trace the production process.

[0023] Furthermore, there are multiple feeding ports, and each feeding port is provided with an independent shielding cover, each shielding cover is connected to an opening cylinder, each feeding port is connected to a temporary storage tank, and an independent feeder is provided under each temporary storage tank. The feeders are connected to the feeding hopper through independent pipelines. The opening cylinder is connected to an opening solenoid valve through an air pipe, and the electrical signal of the opening solenoid valve is connected to the signal output end of the controller. The controller is preset with feeding ports corresponding to the material types. After the controller obtains the material type from the scanner, the controller controls the opening solenoid valve to open the shielding cover of the corresponding feeding port, and only one shielding cover is opened at a time.

[0024] In order to prevent the feeding personnel from making misoperations while waiting for feeding, multiple feeding ports are set up, and independent shielding covers are set at the feeding ports. First, the feeding personnel obtains the material information through the scanner, and the controller controls the shielding cover corresponding to the material to open. The feeding personnel uses the opened feeding port as a guide to complete the feeding of the material. When the materials in the previous sequence are fed, the feeding personnel clicks the confirmation button, and the controller controls the shielding cover to cover the feeding port where the feeding is completed to prevent other materials from falling into the feeding.

[0025] In order to keep the feeding platform clean, dust removal nozzles are provided on the inner sides of the feeding platform to remove dust on the feeding platform, and the dust removal nozzles are connected to dust removal solenoid valves. When the feeding personnel click the confirmation button, the shielding cover covers the feeding port just fed, and the dust removal solenoid valve operates for 2 seconds, and the airflow is sprayed through the dust removal nozzles to clean up the spilled materials on the feeding platform.

[0026] The opening state of the shielding cover is also used to guide the feeding personnel to put the materials into the correct feeding port. In this way, the feeding personnel do not need to think about the feeding order and can scan the materials continuously. They only need to set in the controller that only one feeding port can be opened in the same time period. According to the opening state of the shielding cover, the corresponding materials are put into the temporary storage tank. After each material is put in, the feeding personnel can continue to scan other materials through the scanner. The controller opens the corresponding feeding port according to the preset matching relationship between the material and the feeding port. When all the materials are put into the temporary storage tank, the controller controls the preset order and interval time of each material input, and puts the materials into the preparation tank for liquid preparation in turn. This feeding method reduces the process of judging the order of material feeding during manual feeding, which improves the feeding efficiency.

[0027] The present application proposes a method for preventing feeding errors in a feeding system with multiple feeding ports, which specifically includes the following steps: Step T01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step T02: The controller selects the corresponding formula information according to the preparation requirements, matches the formula information with the hardware, matches the material types with the feeding ports one by one, uses the material input amount as the judgment value of the weighing sensor, and uses the material input sequence as the opening and closing sequence of the feeding port shielding cover; Step T03: The controller publishes the recipe information to the feeding personnel, and the feeding personnel perform feeding operations according to the published recipe information; Step T04: The feeding personnel scan the identification code on the packaging of the material to be fed through a barcode scanner to obtain the type and weight information of the material to be fed; Step T05: After the barcode scanner transmits the information of the materials to be fed to the controller, the controller determines whether the type of the materials to be fed is the type of materials preset in the formula, and whether the weight of the materials is the weight of the materials preset in the formula. If both are judged to be correctly matched, the controller issues an instruction to the feeding personnel to proceed to the next step of operation, otherwise the controller outputs an alarm signal; Step T06: When the matching is correct, the controller controls the feeding cylinder to open the shielding cover of the corresponding feeding port, and keeps the shielding covers of other feeding ports closed, and the operator puts the material in step 5 into the feeding port in the open state; Step T07: After the material feeding is completed, the feeding personnel clicks the confirmation button, and the shielding cover of the feeding port is closed; Repeat steps T04 to T07 until the feeding personnel put all the materials in the formula into the corresponding feeding port; Step T08: After all the materials have entered the corresponding temporary storage tanks, the controller performs the following actions on all the materials in sequence according to the preset feeding order: first, open the feeder, and the feeder feeds the materials in the temporary storage tank into the feeding hopper. Then, the weighing sensor weighs the materials in real time. When the weight of the materials reaches the preset amount, the feeder is immediately closed; the controller controls the feeding cylinder to feed the materials in the feeding hopper into the preparation tank. After each material is put into the preparation tank and dissolved, the next material is added.

[0028] Through the above steps, the material information is first read using a barcode scanner, including the material name, material weight, and the code of the solution to be prepared, to ensure that the material information is accurate and reliable, and to avoid feeding errors caused by negligence of the feeding personnel. At the same time, in addition to scanning the packaged material information for review, the material weight information is also reviewed a second time through a weighing sensor to minimize the risk of feeding errors.

[0029] There are multiple feeding ports, and each feeding port is provided with a shielding cover. By matching the relationship between the materials and the feeding ports, during the feeding process, the feeding personnel no longer need to consider the order of material feeding, but only need to pay attention to the opening status of the feeding port, thereby avoiding errors caused by the feeding personnel in the feeding order. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the error-proof feeding system of Example 1; Figure 2 This is a schematic diagram of control signal connection of the error-proof feeding system of Example 1; Figure 3 This is a schematic diagram of the error-proof feeding structure in Example 2; Figure 4 This is a schematic diagram of control signal connection of the error-proof feeding system in Example 2; Figure 5 This is a logic flow chart of the error-proof feeding method in Example 2; Figure 6 This is a schematic diagram of the structure of the error-proof feeding system in Example 3; Figure 7 This is a schematic diagram of control signal connection of the error-proof feeding system in Example 3; Figure 8 This is a logic flow chart of the error-proof feeding method in Example 3; Fig. 9 This is the traceability document list in Example 3.

[0031] The figure marks in the drawings of the specification are: feeding platform 1; feeding port 111; feeding channel 112; temporary storage tank 2; feeder 3; feeding hopper 4; preparation tank 5; confirmation button 6; barcode scanner 7; display screen 8; dust removal nozzle 9; shielding cover 10; weighing sensor 11; liner 12; controller 13; alarm 14; cover opening solenoid valve 15; cover opening cylinder 16; feeding solenoid valve 17; feeding cylinder 18; recovery negative pressure fan 19; dust removal fan 20. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods: Embodiment 1: like Figure 1 and Figure 2As shown, an error-proof feeding system includes a feeding platform 1, a preparation tank 5, a barcode scanner 7 and a controller 13. The feeding platform 1 is provided with a feeding port 111, and the feeding port 111 is connected to a feeding pipe 112 for introducing the material into the preparation tank 5. The barcode scanner 7 is arranged at the feeding platform 1, and the electrical signal of the barcode scanner 7 is connected to the input end of the controller 13. The barcode scanner 7 identifies the material packaging identification code, and transmits the material type and material weight information contained in the identification code to the controller 13. The controller 13 is preset with a recipe, and the recipe includes the material type, material weight and material delivery sequence information. The controller 13 determines whether the material is the material of the current material delivery sequence, and determines whether the material weight information is correct; when the material is confirmed to be the material of the current delivery sequence and the weight is correct, the controller 13 sends a signal that the next material delivery can be carried out, otherwise a feeding error warning is issued. In this embodiment, a warning signal is issued through the alarm 14.

[0033] This system is used in the manual feeding process of drug solution preparation. After the feeding personnel scan the identification code on the material packaging with a barcode scanner, they obtain material information such as material name and weight. The barcode scanner transmits the material information to the controller, and the controller verifies whether the current material is the material in the current order in the formula, and verifies whether the weight matches the weight in the formula. After the verification is correct, the controller sends a feeding signal, and the operator can put the material into the feeding port. Otherwise, the controller issues a feeding error warning and suspends the next step of operation until the error is corrected before the next step of feeding can be carried out.

[0034] The barcode scanner obtains material information directly from the material packaging and presets the formula in the controller. The controller verifies each manual feeding. Only after the verification is correct, the controller sends a feeding signal, and the operator can put the material into the feeding port. Otherwise, the controller sends a feeding error warning and suspends the next step of operation until the error is corrected. Then the next step of feeding can be carried out, thereby avoiding the waste of the prepared liquid due to the wrong material feeding or the wrong sequence by the feeding personnel.

[0035] Example 2 like Figure 3 and Figure 4 As shown, an error-proof feeding system includes a feeding platform 1, a barcode scanner 7, a controller 13, a feeding component and a preparation tank 5. The feeding platform 1 is provided with a feeding port and a confirmation button 6. The feeding port is connected to a temporary storage tank 2 through a vertical feeding pipe. A feeder 3 is connected to the bottom of the temporary storage tank 2.

[0036] The feeding platform 1 is provided with dust removal nozzles 9 for removing dust on the feeding platform, and the dust removal nozzles 9 are connected to dust removal solenoid valves. After each feeding is completed, it is inevitable that some materials will be scattered on the feeding platform. The dust removal nozzles 9 work after each feeding, so that when feeding, the materials scattered on the feeding platform will not be mistakenly thrown into the feeding port.

[0037] A residual material recovery pipe is provided in the temporary storage tank 2 , the pipe opening of the residual material recovery pipe is at the bottom of the temporary storage tank, and the residual material recovery pipe is connected to a recovery negative pressure fan 19 , and the electrical signal of the recovery negative pressure fan 19 is connected to the signal output end of the controller 13 .

[0038] The feeding assembly includes a support frame and a feeding hopper 4. The two sides of the feeding hopper 4 are hinged on the support frame. The feeding hopper 4 is open to face the outlet of the feeder 3. The preparation tank 5 is located directly below the feeding hopper 4. A circle of purge ring is provided on the upper edge of the feeding hopper. The purge ring is provided with air holes. The air outlet direction of the air holes is toward the inner tank. The purge ring is connected to the dust removal fan 20 through a pipeline. The electrical signal of the dust removal fan 20 is connected to the signal output end of the controller 13.

[0039] The feeding hopper 4 is connected to a feeding cylinder 18 for driving the feeding hopper 4 to rotate, and a feeding solenoid valve 17 is connected to the air path of the feeding cylinder 18 . An inner liner 12 for real-time weighing is provided inside the feeding hopper 4 , and a weighing sensor 11 is provided in the inner liner 12 .

[0040] The confirmation button 6 , the weighing sensor 11 and the barcode scanner 7 are all connected to the signal input end of the controller 13 , and the feeder 3 and the feeding solenoid valve 17 are connected to the signal output end of the controller 13 .

[0041] In the control of manual feeding, the feeding personnel use the barcode scanner 7 to identify the identification code on the material packaging, such as a QR code. The material type and material weight information contained in the identification code are transmitted to the controller 13; the controller 13 is preset with a recipe, which includes the material type, material weight and material feeding sequence information. The controller 13 determines whether the material is the material in the current material feeding sequence and whether the material weight information is correct; when the material is confirmed to be the material in the current feeding sequence and the weight information is correct, the controller sends a signal that the material can be fed.

[0042] The weighing sensor 11 is used to obtain the weight of the current material in real time, and again determine whether the current material weight meets the preset material weight. When it meets the preset material weight, the controller 13 controls the feeding solenoid valve 17 to operate, and the feeding hopper 4 feeds the current material into the preparation tank 5.

[0043] After the controller 13 obtains the signal from the confirmation button 6, it controls the feeder 3 to continuously feed the material into the hopper 4. When the weighing sensor 11 senses that the weight of the material in the hopper 4 reaches the preset weight, the controller 13 controls the feeder 3 to stop feeding; the hopper 4 puts the current material into the preparation tank 5.

[0044] A display screen 8 is placed at the feeding platform 1, and the display screen 8 is connected to the controller 13. The feeding information is synchronously given to the feeding personnel through the display screen 8, and the display screen 8 is used to inform whether there is any misoperation.

[0045] like Figure 5 As shown, in the controller, the error-proof feeding method performs the following steps: Step S01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step S02: The controller selects corresponding recipe information according to the preparation requirements; Step S03: The barcode scanner scans the identification code on the package of the material to be fed, and obtains the type and weight information of the material to be fed; Step S04: the barcode scanner transmits the information of the material to be fed to the controller, and the controller determines whether the material to be fed matches the material in the current order in the preset formula. If they match, the controller issues a feeding instruction, otherwise the controller outputs an alarm signal; Step S05: The controller issues a feeding instruction, and the feeding personnel feed the materials. After the feeding is completed, the confirmation button is clicked. Step S06: After receiving the confirmation button signal, the controller opens the feeder, and the feeder puts the material in the temporary storage tank into the feeding hopper; Step S07: The weighing sensor weighs the material put into the feeder in real time, and the feeder is immediately closed when the weight of the material reaches a preset amount; Step S08: The controller controls the feeding cylinder to feed the material in the feeding hopper into the preparation tank; Repeat step S01 to step S08: add each material into the preparation tank according to the order of the formula. After the material is added into the preparation tank, wait for the material to be fully dissolved before adding the next material.

[0046] In this embodiment, the controller 13 uses Siemens 1500 series 1513, and the barcode scanner 7 uses HoneyWell OH4503 barcode scanner. The barcode scanner is connected to the signal output end of the controller 13, and obtains material information by scanning the QR code on the material packaging bag.

[0047] The feeder 3 uses a rotary feed valve, which drives the impeller to rotate in the shell through the motor, fills the material in the temporary storage tank into the cavity of the impeller, and the material is discharged to the lower part of the shell as the impeller rotates. The material can be fed downward evenly and continuously according to the requirements of the conveying system.

[0048] Embodiment 3: like Figure 6 and Figure 7 As shown, the error-proof feeding system of this embodiment has a basically identical structure to the error-proof feeding system of Embodiment 2, with the difference being that: there are a plurality of feeding ports in the error-proof feeding system of this embodiment, and each feeding port is provided with an independent shielding cover 10, each shielding cover 10 is connected to an opening cylinder 16, each feeding port is connected to a temporary storage tank 2, and an independent feeder 3 is provided below each temporary storage tank 2, and the feeds below the feeder 3 are converged to the top of the feeding hopper 4 through an independent pipeline, the opening cylinder 16 is connected to an opening solenoid valve 15 through an air pipe, and a confirmation button 6 is provided on the feeding platform 1, and the electrical signal of the confirmation button 6 is connected to the signal input end of the controller 13, and the electrical signal of the opening solenoid valve 15 is connected to the signal output end of the controller, and the opening solenoid valve is used to control the opening and closing of the opening cylinder 16.

[0049] like Figure 8 As shown, based on the feeding system of this embodiment, this embodiment provides a method for preventing feeding errors, which specifically comprises the following steps: Step T01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step T02: The controller selects the corresponding formula information according to the preparation requirements, matches the formula information with the hardware, matches the material types with the feeding ports one by one, uses the material input amount as the judgment value of the weighing sensor, and uses the material input sequence as the opening and closing sequence of the feeding port shielding cover; Step T03: The controller publishes the recipe information to the feeding personnel, and the feeding personnel perform feeding operations according to the published recipe information; Step T04: The feeding personnel scan the identification code on the packaging of the material to be fed through a barcode scanner to obtain the type and weight information of the material to be fed; Step T05: After the barcode scanner transmits the information of the materials to be fed to the controller, the controller determines whether the type of the materials to be fed is the type of materials preset in the formula, and whether the weight of the materials is the weight of the materials preset in the formula. If both are judged to be correctly matched, the controller issues an instruction to the feeding personnel to proceed to the next step of operation, otherwise the controller outputs an alarm signal; Step T06: When the matching is correct, the controller controls the feeding cylinder to open the shielding cover of the corresponding feeding port, and keeps the shielding covers of other feeding ports closed, and the operator puts the material in step 5 into the feeding port in the open state; Step T07: After the material feeding is completed, the feeding personnel clicks the confirmation button, and the shielding cover of the feeding port is closed; Repeat steps T04 to T07 until the feeding personnel put all the materials in the formula into the corresponding feeding port; Step T08: After all the materials have entered the corresponding temporary storage tanks, the controller performs the following actions on all the materials in sequence according to the preset feeding order: first, open the feeder, and the feeder feeds the materials in the temporary storage tank into the feeding hopper. Then, the weighing sensor weighs the materials in real time. When the weight of the materials reaches the preset amount, the feeder is immediately closed; the controller controls the feeding cylinder to feed the materials in the feeding hopper into the preparation tank. After each material is put into the preparation tank and dissolved, the next material is added.

[0050] After the current formula is prepared, negative pressure is generated by the recovery negative pressure fan, and the residual material recovery pipe recovers the residual material from the temporary storage tank.

[0051] Through the above steps, the material information is first read using a barcode scanner, including the material name, material weight, and the code of the solution to be prepared, to ensure that the material information is accurate and reliable, and to avoid feeding errors caused by negligence of the feeding personnel. At the same time, in addition to scanning the material information of the package for review, the material weight information is also reviewed for the second time through the weighing sensor to minimize the risk of feeding errors.

[0052] There are multiple feeding ports and each feeding port is provided with a shielding cover. By matching the relationship between the materials and the feeding ports, during the feeding process, the feeding personnel no longer need to consider the order of material feeding, but only need to pay attention to the opening status of the feeding port, which reduces the difficulty of judgment for the feeding personnel.

[0053] The QR code on the packaging of the materials to be added is generated by the batching department, which completes the weight determination and packaging of the materials to be added in advance according to the production plan and formula content, and generates a QR code for the materials to be added. By configuring the raw materials to be used in advance, there is no need for the feeding personnel to weigh them on site, which not only reduces the weight error of the feeding, but also reduces the workload of the feeding personnel.

[0054] like Fig. 9 As shown, the controller 13 includes a traceability log file for recording the data of each step of execution, so as to facilitate the auditors to trace the production process.

[0055] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An error-proof feeding system, characterized in that: It includes a feeding platform, a preparation tank, a barcode scanner and a controller. The feeding platform is provided with a feeding port, and the feeding port is connected to a feeding pipe for introducing materials into the preparation tank. The barcode scanner is arranged at the feeding platform, and the electrical signal of the barcode scanner is connected to the input end of the controller. The barcode scanner identifies the material packaging identification code, and transmits the material type and material weight information contained in the identification code to the controller. The controller is preset with a formula, and the formula includes the material type, material weight and material delivery sequence information. The controller determines whether the material is the material in the current material delivery sequence, and determines whether the material weight information is correct; when the material is confirmed to be the material in the current delivery sequence and the weight is correct, the controller sends a signal that the next material delivery can be carried out, otherwise a feeding error warning is issued.

2. The error-proof feeding system according to claim 1, characterized in that: A feeding assembly is provided between the preparation tank and the feeding pipeline, and the feeding assembly includes a support frame and a feeding hopper. The two sides of the feeding hopper are hinged on the support frame, and the preparation tank is located directly below the feeding hopper. The feeding hopper is connected to a feeding cylinder that drives it to rotate, and a feeding solenoid valve is connected to the air path of the feeding cylinder. A weighing sensor is provided in the feeding hopper, and the electrical signal of the weighing sensor is connected to the input end of the controller, and the feeding solenoid valve is connected to the output end of the controller. The weighing sensor is used to obtain the weight of the current material, and the controller is used to determine again whether the current material weight meets the preset material weight. When it meets the preset material weight, the controller controls the feeding solenoid valve to operate, and the feeding hopper puts the current material into the preparation tank.

3. The error-proof feeding system according to claim 2, characterized in that: The feeding platform is provided with a confirmation button for the feeding personnel to confirm that the feeding has been done. The electrical signal of the confirmation button is connected to the input end of the controller. The end of the feeding pipeline is connected to a temporary storage tank. The bottom of the temporary storage tank is connected to a feeder. The electrical signal of the feeder is connected to the output end of the controller. After the controller obtains the signal of the confirmation button, the controller controls the feeder to continue feeding. When the weighing sensor senses that the weight of the material in the feeding hopper reaches the preset weight, the controller controls the feeder to stop feeding.

4. The error-proof feeding system according to claim 3, characterized in that: A residual material recovery pipe is provided in the temporary storage tank, the pipe mouth of the residual material recovery pipe is located at the bottom of the temporary storage tank, the residual material recovery pipe is connected to a recovery negative pressure fan, and the electrical signal of the recovery negative pressure fan is connected to the signal output end of the controller.

5. The error-proof feeding system according to claim 4, characterized in that: A purge ring is provided on the upper edge of the feeding hopper, and air holes are provided on the purge ring. The air outlet direction of the air holes is toward the inner tank. The purge ring is connected to a dust removal fan through a pipeline, and the electrical signal of the dust removal fan is connected to the signal output end of the controller.

6. The error-proof feeding system according to claim 5, characterized in that: The inner sides of the feeding platform are provided with dust removal nozzles for removing dust on the feeding platform.

7. The error-proof feeding system according to claim 6, characterized in that: There are multiple feeding ports, and each feeding port is provided with an independent shielding cover, each shielding cover is connected to an opening cylinder, each feeding port is connected to a temporary storage tank, and an independent feeder is provided under each temporary storage tank. The feeders are connected to the feeding hopper through independent pipelines. The opening cylinder is connected to an opening solenoid valve through an air pipe, and the electrical signal of the opening solenoid valve is connected to the signal output end of the controller. The opening solenoid valve is used to control the opening and closing of the opening cylinder.

8. A method for preventing error feeding, characterized in that: The error-proof feeding system according to any one of claims 3 to 6 comprises the following steps: Step S01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step S02: The controller selects corresponding recipe information according to the preparation requirements; Step S03: The barcode scanner scans the identification code on the package of the material to be fed, and obtains the type and weight information of the material to be fed; Step S04: the barcode scanner transmits the information of the material to be fed to the controller, and the controller determines whether the material to be fed matches the material in the current order in the preset formula. If they match, the controller issues a feeding instruction, otherwise the controller outputs an alarm signal; Step S05: The controller issues a feeding instruction, and the feeding personnel feed the materials. After the feeding is completed, the confirmation button is clicked; Step S06: After receiving the confirmation button signal, the controller opens the feeder, and the feeder puts the material in the temporary storage tank into the feeding hopper; Step S07: The weighing sensor weighs the material put into the feeder in real time, and the feeder is immediately closed when the weight of the material reaches a preset amount; Step S08: The controller controls the feeding cylinder to feed the material in the feeding hopper into the preparation tank; Repeat step S01 to step S08: add each material into the preparation tank according to the order of the formula. After the material is added into the preparation tank, wait for the material to be fully dissolved before adding the next material.

9. A method for preventing error feeding, characterized in that: The error-proof feeding system according to claim 7 comprises the following steps: Step T01: Preset multiple recipe information in the controller, each recipe information includes material type, material input amount and material input sequence; Step T02: The controller selects the corresponding formula information according to the preparation requirements, matches the formula information with the hardware, matches the material types with the feeding ports one by one, uses the material input amount as the judgment value of the weighing sensor, and uses the material input sequence as the opening and closing sequence of the feeding port shielding cover; Step T03: The controller publishes the recipe information to the feeding personnel, and the feeding personnel perform feeding operations according to the published recipe information; Step T04: The feeding personnel scan the identification code on the packaging of the material to be fed through a barcode scanner to obtain the type and weight information of the material to be fed; Step T05: After the barcode scanner transmits the information of the materials to be fed to the controller, the controller determines whether the type of the materials to be fed is the type of materials preset in the formula, and whether the weight of the materials is the weight of the materials preset in the formula. If both are judged to be correctly matched, the controller issues an instruction to the feeding personnel to proceed to the next step of operation, otherwise the controller outputs an alarm signal; Step T06: When the matching is correct, the controller controls the feeding cylinder to open the shielding cover of the corresponding feeding port, and keeps the shielding covers of other feeding ports closed, and the operator puts the material in step 5 into the feeding port in the open state; Step T07: After the material feeding is completed, the feeding personnel clicks the confirmation button, and the shielding cover of the feeding port is closed; Repeat steps T04 to T07 until the feeding personnel put all the materials in the formula into the corresponding feeding port; Step T08: After all the materials have entered the corresponding temporary storage tanks, the controller performs the following actions on all the materials in sequence according to the preset feeding order: first, open the feeder, and the feeder feeds the materials in the temporary storage tank into the feeding hopper. Then, the weighing sensor weighs the materials in real time. When the weight of the materials reaches the preset amount, the feeder is immediately closed; the controller controls the feeding cylinder to feed the materials in the feeding hopper into the preparation tank. After each material is put into the preparation tank and dissolved, the next material is added.

10. The error-proof feeding method according to claim 9, characterized in that: After step T08, when the preparation is completed, the process also includes a step of recovering the residual material in the temporary storage tank, wherein a negative pressure is generated by a recovery negative pressure fan, and a residual material recovery pipe recovers the residual material from the temporary storage tank.

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