A kind of buffer tank material feeding device

Abstract

The utility model discloses a kind of material feeding device of buffer tank, including the replenishment buffer mechanism and feed buffer mechanism of installation in the top of mounting seat, further include: pumping mechanism, between replenishment buffer mechanism and feed buffer mechanism, liquid material in replenishment buffer mechanism is pumped to feed buffer mechanism by pumping mechanism;Stirring mechanism, it is two, respectively installed in replenishment buffer mechanism and feed buffer mechanism inside.The utility model is through the setting of a series of structures, can continue to control the flow of liquid material supply, the precision of this kind of automatic control mode is obviously improved compared with artificial control, and then reduce the influence on processing quality, and can be filtered in advance to the liquid material supply, effectively reduce the situation that impurity enters processing area, further reduce the influence on processing quality.

Description

Technical Field

[0001] This utility model relates to the field of buffer tank feeding technology, and in particular to a buffer tank feeding device. Background Technology

[0002] A buffer tank feeding device is an industrial equipment used for the storage, transportation, and precise supply of liquid materials. It is widely used in industries such as chemical, food, pharmaceutical, and building materials. Its core function is to temporarily store liquid materials in a buffer tank and then transport them to downstream production stages as needed via pumps, valves, and pipelines, ensuring the continuity and stability of the production process. Existing buffer tank feeding devices used in nut processing still have the following shortcomings: 1. The flow rate and volume of the supplied liquid materials are uncontrollable. During nut processing, the amount of liquid material needs to be manually controlled, resulting in low automation and low accuracy, thus affecting processing quality; 2. There is a lack of a structure for filtering the pumped liquid materials. If impurities are present in the liquid material and it is directly supplied to the processing area, it will still affect processing quality. In light of the above, this application proposes a buffer tank feeding device. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a buffer tank feeding device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A buffer tank feeding device includes a replenishing buffer mechanism and a feeding buffer mechanism mounted on the top of a mounting base, and further includes:

[0006] A pumping mechanism is installed between the replenishment buffer mechanism and the feeding buffer mechanism. The pumping mechanism pumps the liquid material in the replenishment buffer mechanism to the feeding buffer mechanism.

[0007] There are two stirring mechanisms, which are installed in the replenishment buffer mechanism and the feeding buffer mechanism respectively. The two stirring mechanisms are used to stir the liquid materials inside the replenishment buffer mechanism and the feeding buffer mechanism to reduce the sedimentation of the liquid materials.

[0008] The controllable feeding and conveying mechanism is installed on the right side of the mounting base and connected and fixed to the right side of the feeding buffer mechanism. The controllable feeding and conveying mechanism is used to quantitatively and continuously extract liquid materials inside the feeding buffer mechanism.

[0009] The PLC controller is fixed on the top of the pumping mechanism and electrically connected to the pumping mechanism, the controllable feeding and conveying mechanism, the replenishment buffer mechanism, and the feeding buffer mechanism. Two indicator lights are fixed on the top of the PLC controller and electrically connected to it. The indicator lights are used to display and remind users of the working status of the controllable feeding and conveying mechanism.

[0010] Preferably, the controllable feeding and conveying mechanism includes a first conveying pump, a support base fixedly connected to the right side of the mounting base, the first conveying pump fixedly on the top of the support base, a first telescopic hose fixedly connected to the extraction end of the first conveying pump, and a flow valve fixedly connected to the discharge end of the first conveying pump. The flow valve is used to measure the amount of liquid material flowing through. A first connecting pipe head is fixedly connected to the right side of the flow valve, and a semi-circular box fixedly on the top of the support base is fixedly connected to the right end of the first connecting pipe head. A second connecting pipe head is fixedly connected to the right side of the semi-circular box, and a flow velocity sensor is fixedly connected to the right end of the second connecting pipe head. The flow velocity sensor is used to detect the flow velocity of the liquid material flowing through. An adjusting plate is in sealed movable contact with the right side of the top inner wall of the semi-circular box. The adjusting plate is in contact with the second... The left end of the connecting pipe head is matched with an adjusting plate used to adjust the size of the opening of the second connecting pipe head. A rotating shaft is rotatably installed between the front inner wall and the rear inner wall of the semi-circular box. The outer side of the rotating shaft is fixedly connected to the bottom of the adjusting plate with the same connecting rod. A brake motor is fixedly connected to the front side of the semi-circular box. The rear end of the output shaft of the brake motor is fixedly connected to the front end of the rotating shaft. The brake motor is used to rotate the adjusting plate by cooperating with the rotating shaft and the connecting rod. The first delivery pump, flow valve, flow rate sensor and brake motor are all electrically connected to the PLC controller. The PLC controller is used to receive data from the flow valve and flow rate sensor to control the brake motor and the first delivery pump. Its control principle is existing technology and will not be described in detail here.

[0011] Preferably, a filter mechanism is installed between the discharge end of the first delivery pump and the flow valve.

[0012] Preferably, the filtration mechanism includes a U-shaped frame fixedly installed on the top of the support base, an L-shaped filter screen movably fitted inside the U-shaped frame, the L-shaped filter screen being used to filter impurities in the liquid material, a sealing cap being threadedly fixed to the top of the U-shaped frame, a U-shaped handle being fixedly connected to the top of the sealing cap, the top of the L-shaped filter screen being fixedly connected to the bottom of the sealing cap, and the discharge end of the first delivery pump and the flow valve being both fixedly connected to the interior of the U-shaped frame.

[0013] Preferably, the replenishment buffer mechanism includes a replenishment buffer box with an opening at the top, a first weighing sensor is fixedly connected to the top of the mounting base, the weighing end of the first weighing sensor is fixedly connected to the bottom of the replenishment buffer box, and the first weighing sensor is used to weigh the weight of the replenishment buffer box.

[0014] The feeding buffer mechanism includes a feeding buffer box with an open top. The left end of the first telescopic hose is connected and fixed to the bottom right side of the feeding buffer box. A second weighing sensor is fixedly connected to the top of the mounting base. The weighing end of the second weighing sensor is fixedly connected to the bottom of the feeding buffer box. The second weighing sensor is used to weigh the weight of the feeding buffer box. Both the replenishment buffer box and the feeding buffer box are fixedly connected to the top of the box. A solenoid valve connected to the replenishment buffer box is embedded and fixed on the top of the box cover on the left side. The solenoid valve, the first weighing sensor and the second weighing sensor are all electrically connected to the PLC controller. The solenoid valve is connected to the external feeding pipe.

[0015] Preferably, the stirring mechanism includes stirring rods, two stirring rods are rotatably mounted on the bottom of corresponding tank covers, a drive motor is fixedly connected to the top of the tank cover, the bottom end of the output shaft of the drive motor is fixedly connected to the top end of the corresponding stirring rod, multiple stirring blades are fixedly connected to both sides of the stirring rod, and the right end of the multiple stirring blades on the right side of the same stirring rod is fixedly connected to the same L-shaped scraper, the bottom inner wall of the L-shaped scraper is fixedly connected to the bottom end of the corresponding stirring rod, the bottom and right side of the two L-shaped scrapers are in movable contact with the bottom inner wall and side wall of the replenishment buffer tank and the feeding buffer tank, respectively, during the rotation of the L-shaped scrapers can scrape and clean the liquid material adhering to the inner wall of the replenishment buffer tank and the feeding buffer tank, the stirring rods and multiple stirring blades cooperate to stir the liquid material, reducing the risk of liquid material sedimentation during the feeding process.

[0016] Preferably, the pumping mechanism includes a second conveying pump fixedly installed on the top of the mounting base. The extraction end and discharge end of the second conveying pump are both connected and fixedly connected to a second telescopic hose. The left end of the second telescopic hose on the left side is connected and fixedly connected to the bottom right side of the replenishment buffer tank, and the right end of the second telescopic hose on the right side is connected and fixedly connected to the bottom left side of the feeding buffer tank. The second conveying pump, through the cooperation of the two second telescopic hoses, is used to pump the liquid material inside the replenishment buffer tank to the feeding buffer tank. The PLC controller is fixedly connected to the top of the second conveying pump and is electrically connected to the second conveying pump.

[0017] Preferably, the indicator light on the left is red, and the indicator light on the right is green.

[0018] Compared with existing technologies, the beneficial effects of this utility model are:

[0019] 1. By combining the replenishment buffer mechanism, the feeding buffer mechanism, the PLC controller, the pumping mechanism and the controllable feeding and transmission mechanism, the liquid material can be continuously fed in a controlled manner. Compared with manual control, this automatic control method has significantly improved accuracy.

[0020] 2. The filtration mechanism can pre-filter the supplied liquid materials, effectively reducing the entry of impurities into the processing area and minimizing their impact on processing quality.

[0021] This invention, through a series of structural designs, enables continuous, controlled-flow feeding of liquid materials. Compared to manual control, this automatic control method significantly improves accuracy, thereby reducing the impact on processing quality. Furthermore, it can pre-filter the supplied liquid materials, effectively reducing the entry of impurities into the processing area and further minimizing the impact on processing quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a buffer tank feeding device according to Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the main cross-sectional structure of a buffer tank feeding device according to Embodiment 1 of this utility model;

[0024] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;

[0025] Figure 4 This is a schematic diagram of the main cross-sectional view of a buffer tank feeding device according to Embodiment 2 of this utility model;

[0026] Figure 5 for Figure 4 A magnified structural diagram of part B.

[0027] In the diagram: 1. Mounting base; 2. Replenishment buffer mechanism; 201. Replenishment buffer box; 202. First weighing sensor; 3. Feeding buffer mechanism; 301. Feeding buffer box; 302. Second weighing sensor; 4. Second conveying pump; 401. Second telescopic hose; 5. PLC controller; 6. Controllable feeding and conveying mechanism; 601. First conveying pump; 602. Flow valve; 603. Semicircular box; 604. First connecting pipe head; 60 5. Adjusting plate; 606. Connecting rod; 607. Rotating shaft; 608. Flow rate sensor; 609. Second connecting pipe head; 610. Support base; 611. Brake motor; 7. Stirring mechanism; 701. Stirring rod; 702. Drive motor; 703. L-shaped scraper; 704. Stirring blade; 8. Indicator light; 9. Filtering mechanism; 901. U-shaped frame; 902. L-shaped filter screen; 903. Sealing cover; 904. T-shaped fixing bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1-3 A buffer tank feeding device includes a replenishing buffer mechanism 2 and a feeding buffer mechanism 3 installed on the top of a mounting base 1. The replenishing buffer mechanism 2 includes a replenishing buffer box 201 with an open top. A first weighing sensor 202 is fixedly connected to the top of the mounting base 1. The weighing end of the first weighing sensor 202 is fixedly connected to the bottom of the replenishing buffer box 201. The first weighing sensor 202 is used to weigh the weight of the replenishing buffer box 201.

[0031] The feeding buffer mechanism 3 includes a feeding buffer box 301 with an open top. A second weighing sensor 302 is fixedly connected to the top of the mounting base 1. The weighing end of the second weighing sensor 302 is fixedly connected to the bottom of the feeding buffer box 301. The second weighing sensor 302 is used to weigh the weight of the feeding buffer box 301. Both the replenishment buffer box 201 and the feeding buffer box 301 are fixedly connected to the top of the box. A solenoid valve connected to the replenishment buffer box 201 is embedded and fixed on the top of the box cover on the left side. The solenoid valve is connected to the external feeding pipe.

[0032] Also includes:

[0033] A pumping mechanism is installed between the replenishment buffer tank 201 and the supply buffer tank 301. The pumping mechanism includes a second conveying pump 4 fixedly installed on the top of the mounting base 1. The extraction end and the discharge end of the second conveying pump 4 are both connected and fixedly connected to a second telescopic hose 401. The left end of the second telescopic hose 401 on the left side is connected and fixedly connected to the bottom right side of the replenishment buffer tank 201, and the right end of the second telescopic hose 401 on the right side is connected and fixedly connected to the bottom left side of the supply buffer tank 301. The second conveying pump 4 cooperates with the two second telescopic hoses 401 to pump the liquid material inside the replenishment buffer tank 201 into the supply buffer tank 301.

[0034] PLC controller 5 is fixedly connected to the top of the second conveying pump 4. PLC controller 5 is electrically connected to the solenoid valve, the second conveying pump 4, the first weighing sensor 202 and the second weighing sensor 302.

[0035] Two stirring mechanisms 7 are installed in the replenishment buffer tank 201 and the feeding buffer tank 301, respectively. Each stirring mechanism 7 includes a stirring rod 701, which is rotatably mounted on the bottom of its corresponding tank cover. A bearing hole is provided at the top of the tank cover, and a first sealed bearing is fixedly fitted inside the bearing hole. The inner side of the inner ring of the first sealed bearing is fixedly connected to the outer side of the corresponding stirring rod 701, thus allowing the stirring rod 701 to rotate. A drive motor 702 is fixedly connected to the top of the tank cover, and the bottom end of the output shaft of the drive motor 702 is fixedly connected to the top end of the corresponding stirring rod 701. Multiple stirring rods are fixedly connected to both sides of each stirring rod 701. The mixing blades 704 and multiple mixing blades 704 located on the right side of the same mixing rod 701 are fixedly connected to the right end of the same L-shaped scraper 703. The bottom inner wall of the L-shaped scraper 703 is fixedly connected to the bottom end of the corresponding mixing rod 701. The bottom and right side of the two L-shaped scrapers 703 are in contact with the bottom inner wall and side wall of the replenishment buffer tank 201 and the feeding buffer tank 301, respectively. During the rotation, the L-shaped scraper 703 can scrape and clean the liquid material adhering to the inner wall of the replenishment buffer tank 201 and the feeding buffer tank 301. The mixing rod 701 and multiple mixing blades 704 work together to mix the liquid material and reduce the risk of liquid material sedimentation during the feeding process.

[0036] In this implementation scheme: Liquid materials are pre-buried in the replenishment buffer tank 201 and the supply buffer tank 301. First, the solenoid valve and the second delivery pump 4 are turned on, and the external liquid materials enter the replenishment buffer tank 201 through the solenoid valve. The second delivery pump 4 extracts the liquid materials inside the replenishment buffer tank 201 through the second telescopic hose 401 on the left side. The extracted liquid materials enter the supply buffer tank 301 through the second telescopic hose 401 on the right side. At the same time, the first weighing sensor 202 and the second weighing sensor 302 weigh the replenishment buffer tank 201 and the supply buffer tank 301 respectively, and transmit the weighed weight to the PLC controller 5. When the weight reaches the set value, the PLC controller 5 controls the solenoid valve and the second delivery pump 4 to close.

[0037] During the feeding process, the drive motor 702 is turned on, and the output shaft of the drive motor 702 drives the corresponding stirring rod 701 to rotate. The stirring rod 701 drives the corresponding multiple stirring blades 704 and L-shaped scrapers 703 to rotate. While the multiple stirring blades 704 rotate, they stir and mix the liquid material. At the same time, the two L-shaped scrapers 703 scrape and clean the liquid material adhering to the inner wall of the replenishment buffer tank 201 and the feeding buffer tank 301. By stirring the liquid material during the feeding process, the risk of liquid material sedimentation during the feeding process is reduced.

[0038] It should be noted that: the second transfer pump 4 is a Grundfos CR series centrifugal pump; the first weighing sensor 202 and the second weighing sensor 302 are strain gauge load cells, preferably model PW2C3H; the PLC controller 5 is preferably Siemens S7-1200; and the solenoid valve is preferably ASCO. The specific control principle of the solenoid valve in the Red Hat series is as follows: The PLC controller 5 first detects the weight of the replenishment buffer tank 201. If it is lower than the set lower limit, the solenoid valve is opened to feed the material, and the first weighing sensor 202 monitors the weight change in real time. When the replenishment buffer tank 201 reaches the set value, the PLC controller 5 closes the solenoid valve and starts the second delivery pump 4 to deliver the liquid material to the feeding buffer tank 301 through the second telescopic hose 401. At this time, the second weighing sensor 302 continuously monitors the weight of the feeding buffer tank. Once the feeding buffer tank 301 reaches the upper limit, the PLC controller 5 immediately stops the second delivery pump 4, completing one feeding cycle. The entire process is dynamically coordinated by the PLC controller 5 with the weighing data and the actuator to ensure accurate feeding. If an abnormal weight or equipment failure is detected, the PLC controller 5 will trigger an alarm and stop the machine to achieve safe closed-loop control. The specific control principle is existing technology in this field and will not be elaborated here.

[0039] Furthermore:

[0040] A buffer tank feeding device further includes a controllable feeding and conveying mechanism 6, which is installed on the right side of the mounting base 1;

[0041] The controllable feeding and conveying mechanism 6 includes a first conveying pump 601. A support base 610 is fixedly connected to the right side of the mounting base 1. The first conveying pump 601 is fixed to the top of the support base 610. A first telescopic hose is fixedly connected to the extraction end of the first conveying pump 601. The left end of the first telescopic hose is fixedly connected to the bottom right side of the feeding buffer tank 301. A flow valve 602 is fixedly connected to the discharge end of the first conveying pump 601. The flow valve 602 is used to measure the amount of liquid material flowing through it. A first connecting pipe head 604 is fixedly connected to the right side of the flow valve 602. The right end of the first connecting pipe head 604 is fixedly connected to a part fixed to the support base 610. A semi-circular box 603 is located at the top. A second connecting pipe head 609 is fixedly connected to the right side of the semi-circular box 603. A flow rate sensor 608 is fixedly connected to the right end of the second connecting pipe head 609. The flow rate sensor 608 is used to detect the flow rate of the liquid material flowing through it. An adjusting plate 605 is in movable contact with the right side of the top inner wall of the semi-circular box 603. The top of the adjusting plate 605 is covered with a sealing rubber, which is in movable contact with the inner wall of the semi-circular box 603. The sealing rubber achieves a seal between the semi-circular box 603 and the adjusting plate 605. The adjusting plate 605 cooperates with the left end of the second connecting pipe head 609. The adjusting plate 605 is used for... The size of the opening of the second connecting pipe head 609 is adjusted by obstruction. A rotating shaft 607 is rotatably installed between the front inner wall and the rear inner wall of the semicircular box 603. A second sealed bearing is fixedly connected to both the front inner wall and the rear inner wall of the semicircular box 603. The inner side of the inner ring of the second sealed bearing is fixedly connected to the outer side of the rotating shaft 607. The second sealed bearing serves to allow the rotating shaft 607 to rotate. The same connecting rod 606 is fixedly connected between the outer side of the rotating shaft 607 and the bottom of the adjusting plate 605. A brake motor 611 is fixedly connected to the front side of the semicircular box 603. The rear end of the output shaft of the brake motor 611 is connected to the front of the rotating shaft 607. The end is fixedly connected, and a movable hole is opened on the inner wall of the front side of the semi-circular box 603. The inner wall of the movable hole is in movable contact with the outer side of the output shaft of the brake motor 611. The brake motor 611 cooperates with the rotating shaft 607 and the connecting rod 606 to adjust the rotation of the adjusting plate 605. The first delivery pump 601, the flow valve 602, the flow rate sensor 608 and the brake motor 611 are all electrically connected to the PLC controller 5. The PLC controller 5 is used to receive data from the flow valve 602 and the flow rate sensor 608 to control the brake motor 611 and the first delivery pump 601. Its control principle is existing technology and will not be described in detail here.

[0042] Two indicator lights 8 are fixed and electrically connected to the top of the PLC controller 5. The indicator light 8 on the left is red and the indicator light 8 on the right is green. The indicator lights 8 are used to display and remind users of the working status of the controllable feeding and conveying mechanism 6.

[0043] In this implementation scheme: During material feeding, the first conveying pump 601 is turned on. The first conveying pump 601 conveys the liquid material inside the material feeding buffer tank 301 through the first telescopic hose. The conveyed liquid material is discharged into the external feeding pipe through the flow valve 602, the first connecting pipe head 604, the semi-circular box 603, the second connecting pipe head 609, and the flow rate sensor 608 in sequence. The flow rate sensor 608 and the flow valve 602 detect the flow rate and flow velocity of the liquid material, respectively. When the flow rate is low, the PLC controller 5 controls the holding brake motor. When 611 is turned on in the forward direction, the output shaft of the brake motor 611 drives the rotating shaft 607 to rotate. The rotating shaft 607 drives the adjusting plate 605 to rotate to the right through the connecting rod 606, gradually blocking part of the flow port of the second connecting pipe head 609. By blocking the flow port, the cross-sectional area of ​​the liquid material can be reduced, so that its flow rate gradually increases. When the flow rate sensor 608 detects that the flow rate has reached the set value, the PLC controller 5 controls the brake motor 611 to close, thereby achieving the purpose of adjusting the flow rate according to the material supply requirements.

[0044] In addition, during the operation of the first conveying pump 601, the PLC controller 5 controls the indicator light 8 on the left to turn red, and when the first conveying pump 601 stops working, the PLC controller 5 controls the indicator light 8 on the right to turn green, so as to remind the personnel of the material supply status by lighting the light.

[0045] It should be noted that: the first transfer pump 601 can preferably be a Grundfos CRE series centrifugal pump, the flow valve 602 can preferably be a Siemens 2WP series flow valve, the flow velocity sensor 608 can preferably be an IFM SM9000 series turbine flow meter, and the brake motor 611 can preferably be a Dongfang Electric PKP series motor. The specific control principle is as follows: the flow valve 602 detects the flow in real time and feeds it back to the PLC controller 5 through a 4-20mA signal. The PLC controller 5 compares the set value with the actual value and controls the first transfer pump 601 through a PID algorithm. At the same time, the flow velocity sensor 608 outputs an analog signal to the PLC controller 5. The PLC controller 5 controls the brake motor 611 to move according to the set threshold. The PLC controller 5 sends a pulse signal to control the rotation angle of the brake motor 611 and drive the regulating plate 605. The specific control principle is existing technology and will not be elaborated on here.

[0046] Working principle: In use, the solenoid valve is pre-connected to the external liquid material supply pipe. The opening and closing weights of the second conveying pump 4 and the solenoid valve are pre-set via the PLC controller 5. Simultaneously, the flow rates of the first conveying pump 601 and the flow velocity of the brake motor 611 are also pre-set. After setting, the liquid material is pre-buried in the replenishment buffer tank 201 and the supply buffer tank 301. First, the solenoid valve and the second conveying pump 4 are opened, and the external liquid material enters the replenishment buffer tank 201 through the solenoid valve. Inside 01, the second delivery pump 4 extracts liquid material from the replenishment buffer tank 201 through the second telescopic hose 401 on the left. The extracted liquid material enters the feeding buffer tank 301 through the second telescopic hose 401 on the right. At the same time, the first weighing sensor 202 and the second weighing sensor 302 weigh the replenishment buffer tank 201 and the feeding buffer tank 301 respectively, and transmit the weighed weight to the PLC controller 5. When the weight reaches the set value, the PLC controller 5 controls the solenoid valve and the second delivery pump 4 to close.

[0047] When feeding liquid materials, the discharge end of the flow rate sensor 608 needs to be connected to the external feeding pipe. The flow rate and volume of the liquid material are preset according to the feeding requirements via the PLC controller 5. During feeding, the first conveying pump 601 is turned on, and it conveys the liquid material inside the feeding buffer tank 301 through the first telescopic hose. The conveyed liquid material passes sequentially through the flow valve 602, the first connecting pipe head 604, the semi-circular box 603, the second connecting pipe head 609, and the flow rate sensor 608 before being discharged into the external feeding pipe. The flow rate sensor 608 and the flow valve 602 detect the flow rate and volume of the liquid material, respectively. When the flow rate is low, according to the formula V=Q / A, with the flow rate Q remaining constant, the cross-sectional area A through which the liquid material flows can be reduced to increase the flow rate v. When reducing the cross-sectional area, the PLC controller 5 controls the brake. When motor 611 is turned on in the forward direction, the output shaft of the brake motor 611 drives the rotating shaft 607 to rotate. The rotating shaft 607 drives the adjusting plate 605 to rotate to the right through the connecting rod 606. As the adjusting plate 605 rotates, it gradually blocks part of the flow port of the second connecting pipe head 609. By blocking the flow port, the cross-sectional area of ​​the liquid material can be reduced. As the cross-sectional area decreases, the flow rate gradually increases. When the flow rate sensor 608 detects that the flow rate has reached the set value, the PLC controller 5 controls the brake motor 611 to turn off, thereby achieving the purpose of adjusting the flow rate according to the material supply needs. When the amount of liquid material supplied reaches the set value, the PLC controller 5 also controls the first conveying pump 601 to turn off, thereby completing the purpose of automatic quantitative and constant flow rate material supply. Compared with manual control, this automatic control method has significantly improved accuracy, thereby reducing the impact on processing quality.

[0048] Furthermore, during the operation of the first conveying pump 601, the PLC controller 5 controls the indicator light 8 on the left to turn red, and when the first conveying pump 601 stops working, the PLC controller 5 controls the indicator light 8 on the right to turn green, thereby reminding personnel of the material supply status.

[0049] Example 2

[0050] Reference Figure 4-5 This embodiment is based on Embodiment 1, but differs from Embodiment 1 in that a filter mechanism 9 is installed between the discharge end of the first delivery pump 601 and the flow valve 602.

[0051] The filtration mechanism 9 includes a U-shaped frame 901 fixedly installed on the top of the support base 610. An L-shaped filter screen 902 is movably fitted inside the U-shaped frame 901. The L-shaped filter screen 902 is used to filter impurities in liquid materials. A sealing cover 903 is threadedly fixed to the top of the U-shaped frame 901. A U-shaped handle is fixedly connected to the top of the sealing cover 903. The top of the L-shaped filter screen 902 is fixedly connected to the bottom of the sealing cover 903. The discharge end of the first delivery pump 601 and the flow valve 602 are both connected and fixedly connected to the interior of the U-shaped frame 901. Bolt holes are opened on both sides of the top of the U-shaped frame 901. T-shaped fixing bolts 904 are threadedly fitted inside the bolt holes. Through holes are opened on both sides of the top of the sealing cover 903. The inner wall of the through hole is in movable contact with the outer side of the corresponding T-shaped fixing bolt 904. The T-shaped fixing bolt 904 is used to fix the sealing cover 903.

[0052] The usage method of this embodiment is as follows: Unlike Embodiment 1, it also has the following functions: The liquid material discharged from the first delivery pump 601 enters the U-shaped frame 901 beforehand. The liquid material passes through the L-shaped filter screen 902 inside the U-shaped frame 901 and then enters the flow valve 602. The L-shaped filter screen 902 filters impurities in the flowing liquid material. The filtered impurities are blocked inside the L-shaped filter screen 902. By pre-filtering the supplied liquid material, the entry of impurities into the processing area can be effectively reduced, thus reducing the impact on processing quality. When the indicator light 8 on the right side is green, it indicates that the first delivery pump 601 is in a stopped state. Personnel can loosen the fixing of the sealing cover 903 by rotating the T-shaped fixing bolt 904. At this time, the sealing cover 903 can be pulled upwards to move the L-shaped filter screen 902 out of the U-shaped frame 901 for cleaning. After cleaning, the L-shaped filter screen 902 can be moved back into the U-shaped frame 901 for subsequent use.

[0053] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A buffer tank feeding device, comprising a replenishing buffer mechanism (2) and a feeding buffer mechanism (3) mounted on the top of a mounting base (1), characterized in that, Also includes: The pumping mechanism is installed between the replenishment buffer mechanism (2) and the feeding buffer mechanism (3); There are two stirring mechanisms (7), which are installed in the replenishment buffer mechanism (2) and the feeding buffer mechanism (3), respectively; A controllable feeding and conveying mechanism (6) is installed on the right side of the mounting base (1) and connected to the right side of the feeding buffer mechanism (3); The PLC controller (5) is fixed on the top of the pumping mechanism and is electrically connected to the pumping mechanism, the controllable feeding and transmission mechanism (6), the replenishment buffer mechanism (2) and the feeding buffer mechanism (3). Two indicator lights (8) are fixed on the top of the PLC controller (5) and electrically connected to it.

2. The buffer tank feeding device according to claim 1, characterized in that, The controllable feeding and conveying mechanism (6) includes a first conveying pump (601), a support base (610) is fixedly connected to the right side of the mounting base (1), the first conveying pump (601) is fixed to the top of the support base (610), the extraction end of the first conveying pump (601) is connected to a first telescopic hose, the discharge end of the first conveying pump (601) is connected to a flow valve (602), the right side of the flow valve (602) is connected to a first connecting pipe head (604), the right end of the first connecting pipe head (604) is connected to a semi-circular box (603) fixed to the top of the support base (610), the right side of the semi-circular box (603) is connected to a second connecting pipe head (609), and the right end of the second connecting pipe head (609) is connected to a flow rate sensor. (608) An adjusting plate (605) is sealed and movable on the right side of the top inner wall of the semicircular box (603). The adjusting plate (605) is matched with the left end of the second connecting pipe head (609). A rotating shaft (607) is rotatably installed between the front inner wall and the rear inner wall of the semicircular box (603). The outer side of the rotating shaft (607) is fixedly connected to the bottom of the adjusting plate (605) with the same connecting rod (606). A brake motor (611) is fixedly connected to the front side of the semicircular box (603). The rear end of the output shaft of the brake motor (611) is fixedly connected to the front end of the rotating shaft (607). The first delivery pump (601), the flow valve (602), the flow rate sensor (608) and the brake motor (611) are all electrically connected to the PLC controller (5).

3. The buffer tank feeding device according to claim 2, characterized in that, A filter mechanism (9) is installed between the discharge end of the first delivery pump (601) and the flow valve (602).

4. The buffer tank feeding device according to claim 3, characterized in that, The filtering mechanism (9) includes a U-shaped frame (901) fixedly installed on the top of the support base (610). An L-shaped filter screen (902) is movably fitted inside the U-shaped frame (901). A sealing cap (903) is threadedly fixed to the top of the U-shaped frame (901). A U-shaped handle is fixedly connected to the top of the sealing cap (903). The top of the L-shaped filter screen (902) is fixedly connected to the bottom of the sealing cap (903). The discharge end of the first delivery pump (601) and the flow valve (602) are both connected and fixed to the inside of the U-shaped frame (901).

5. A buffer tank feeding device according to claim 2, characterized in that, The replenishment buffer mechanism (2) includes a replenishment buffer box (201) with an opening at the top. A first weighing sensor (202) is fixedly connected to the top of the mounting base (1), and the weighing end of the first weighing sensor (202) is fixedly connected to the bottom of the replenishment buffer box (201). The feeding buffer mechanism (3) includes a feeding buffer box (301) with an open top. The left end of the first telescopic hose is connected and fixed to the bottom right side of the feeding buffer box (301). The top of the mounting base (1) is fixedly connected to a second weighing sensor (302). The weighing end of the second weighing sensor (302) is fixedly connected to the bottom of the feeding buffer box (301). The tops of the replenishment buffer box (201) and the feeding buffer box (301) are both fixedly connected to a box cover. The top of the box cover on the left side is fitted with a solenoid valve that is connected to the replenishment buffer box (201). The solenoid valve, the first weighing sensor (202), and the second weighing sensor (302) are all electrically connected to the PLC controller (5).

6. A buffer tank feeding device according to claim 5, characterized in that, The stirring mechanism (7) includes stirring rods (701). Two stirring rods (701) are rotatably installed at the bottom of the corresponding box cover. A drive motor (702) is fixedly connected to the top of the box cover. The bottom end of the output shaft of the drive motor (702) is fixedly connected to the top end of the corresponding stirring rod (701). Multiple stirring blades (704) are fixedly connected to both sides of the stirring rod (701). The right end of the multiple stirring blades (704) on the right side of the same stirring rod (701) is fixedly connected to the same L-shaped scraper (703). The bottom inner wall of the L-shaped scraper (703) is fixedly connected to the bottom end of the corresponding stirring rod (701). The bottom and right side of the two L-shaped scrapers (703) are in active contact with the bottom inner wall and side wall of the replenishment buffer box (201) and the feeding buffer box (301), respectively.

7. A buffer tank feeding device according to claim 5, characterized in that, The pumping mechanism includes a second conveying pump (4) fixedly installed on the top of the mounting base (1). The extraction end and discharge end of the second conveying pump (4) are both connected and fixed with a second telescopic hose (401). The left end of the second telescopic hose (401) on the left side is connected and fixedly connected to the bottom right side of the replenishment buffer box (201). The right end of the second telescopic hose (401) on the right side is connected and fixedly connected to the bottom left side of the feeding buffer box (301). The PLC controller (5) is fixedly connected to the top of the second conveying pump (4). The PLC controller (5) is electrically connected to the second conveying pump (4).

8. A buffer tank feeding device according to claim 1, characterized in that, The indicator light (8) on the left is red, and the indicator light (8) on the right is green.

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