Weighing stock bin and feeding control method

Abstract

The invention discloses a weighing stock bin and a feeding control method, and relates to the technical field of weighing stock bins, the weighing stock bin comprises a rack, a feeding mechanism and a controller, the rack is connected with a weighing sensor, the weighing end of the weighing sensor is connected with a bin body, the bin body is connected with a control assembly, and the control assembly is connected with the feeding mechanism. The control assembly is used for controlling the on-off state of the discharging end of the bin body, the feeding end of the bin body is connected with an extension bin, a first material level sensor is arranged at the joint of the bin body and the extension bin, the discharging end of the feeding mechanism corresponds to the extension bin, the extension bin is located between the feeding mechanism and the bin body, and the first material level sensor is arranged at the position, corresponding to the first material level sensor, of the extension bin. The weighing sensor, the first material level sensor and the feeding mechanism are all electrically connected with the controller. According to the weight of the foam particles required by the forming machine, the foam particles are added into the extension bin until the weight of the foam particles in the bin body and the extension bin reaches the required value, and the weight of the formed foam board is the standard weight.

Description

Technical Field

[0001] This application relates to the technical field of weighing silos, and in particular to a weighing silo and a feeding control method. Background Technology

[0002] Weighing silos for foam particles are industrial devices specifically designed for storing, measuring, and conveying foam particles. Because foam particles are characterized by low density, large volume, susceptibility to electrostatic adsorption, and tendency to become airborne, these silos need to be optimized in design and function to ensure accurate weighing and stable conveying.

[0003] In the production of foam boards, the raw materials are first fed in and then shaped. The volume of the foam board is fixed, and to produce standard-compliant foam boards, the weight of the finished product must be strictly controlled. Before molding, foam particles are filled into a weighing hopper, and then all the foam particles in the weighing hopper are conveyed to the molding machine. The capacity of the weighing hopper is fixed. However, due to the different densities of foam particles from different batches, the weight of the foam particles in the weighing hopper cannot be guaranteed. When the weight of the foam particles in the weighing hopper is greater than the standard weight, the produced foam board meets the standard; when the weight of the foam particles in the weighing hopper is less than the standard weight, the produced foam board does not meet the standard. Summary of the Invention

[0004] The purpose of this application is to provide a weighing hopper and a feeding control method to ensure that the molded foam board meets the standards.

[0005] The weighing hopper and feeding control method provided in this application adopt the following technical solution: it includes a frame, a feeding mechanism, and a controller. The frame is connected to a weighing sensor. The weighing end of the weighing sensor is connected to a hopper body. The hopper body is connected to a control component. The control component is used to control the on / off state of the discharge end of the hopper body. The feeding end of the hopper body is connected to an extension hopper. A first level sensor is provided at the connection between the hopper body and the extension hopper. The discharge end of the feeding mechanism corresponds to the extension hopper. The extension hopper is located between the feeding mechanism and the hopper body. The weighing sensor, the first level sensor, and the feeding mechanism are all electrically connected to the controller.

[0006] By adopting the above technical solution, foam particles are added to the hopper through the feeding mechanism until the foam particles reach the first material level sensor. The controller then shuts off the feeding mechanism, ceasing further addition to the hopper. A weighing sensor weighs the foam particles in the hopper. When the weight of the foam particles in the hopper is greater than the weight required by the molding machine, it meets the standard. When the weight of the foam particles in the hopper is less than the weight required by the molding machine, the density of this batch of foam particles can be calculated. Based on the weight required by the molding machine, foam particles are added to the extension hopper until the weight of the foam particles in both the hopper and the extension hopper reaches the required value, resulting in the standard weight of the molded foam board. Based on the density of this batch of foam particles and the required weight of foam particles, the volume of foam particles in the hopper and the extension hopper at this point can be calculated. The capacity of the molding machine is then adjusted to allow the foam particles in the hopper and the extension hopper to be transferred into the molding machine.

[0007] Optionally, the feeding mechanism includes a storage bin connected to the frame, a baffle slidably connected to the storage bin, and a first driving member for driving the baffle to slide. The first driving member is connected to the storage bin, the storage bin is located above the extension bin, the discharge end of the storage bin corresponds to the feed end of the extension bin, the baffle is used to cover the discharge port of the storage bin, and the first driving member is electrically connected to the controller.

[0008] By adopting the above technical solution, the storage bin can be used as a storage container for foam particles. The baffle and the first driving component work together to control the opening and closing of the storage bin's outlet, thereby enabling the feeding of materials into the bin body and the extension bin. This meets the control requirements of the weighing bin for feeding foam particles, making the feeding process more controllable and facilitating the accurate acquisition of the required weight of foam particles.

[0009] Optionally, the hopper includes a fixed hopper and an adjustable hopper slidably connected to the fixed hopper. The adjustable hopper is in communication with the fixed hopper. The fixed hopper is located between the extended hopper and the adjustable hopper. The control component is used to control the opening and closing of the discharge end of the adjustable hopper. The fixed hopper is connected to the weighing end of the weighing sensor. The fixed hopper is connected to a lifting component, which is used to drive the adjustable hopper to rise and fall.

[0010] By adopting the above technical solution, when the lifting component drives the adjustment chamber to rise and fall, it adjusts the fixed chamber and the overall capacity of the fixed chamber, thus making it suitable for molding machines of different capacities.

[0011] Optionally, the lifting assembly includes at least one worm gear rotatably connected to the fixed chamber, at least two worm wheels rotatably connected to the fixed chamber, a lead screw fixedly connected to each of the worm wheels, and a second driving member for driving the worm gear to rotate. The second driving member is connected to the fixed chamber, each of the worm wheels meshes with the worm gear, and each of the lead screws is threadedly connected to the adjusting chamber.

[0012] By adopting the above technical solution, the second driving component drives the worm to rotate, and the worm drives the lead screw to rotate by meshing with the worm wheel, so that the adjusting chamber slides along the length direction of the lead screw, thereby adjusting the height of the adjusting chamber and resetting the adjusting chamber, that is, resetting the capacity of the chamber.

[0013] Optionally, the lifting assembly further includes a connecting rod rotatably connected to the fixed chamber, two worm gears rotatably connected to the fixed chamber, four worm wheels rotatably connected to the fixed chamber, the connecting rod being located between the two worm gears, and a gear being connected to one end of each worm gear near the connecting rod and both ends of the connecting rod, with adjacent gears meshing, and every two worm wheels meshing with one worm gear.

[0014] By adopting the above technical solution, two worm gears are connected by a connecting rod, and the two worm gears are rotated synchronously through gear transmission, which drives four worm wheels to rotate, thereby driving the lead screw to rotate and raise or lower the regulating chamber. This achieves stable and synchronous sliding of the regulating chamber, ensuring the stability and accuracy of the regulating chamber when adjusting its position, and is conducive to precise control of the capacity of the fixed chamber and the regulating chamber.

[0015] Optionally, the frame is provided with a first limiting rod and a second limiting rod, the adjusting chamber is connected to a limiting plate, the limiting plate is used to abut against the first limiting rod and the second limiting rod, the limiting plate is located between the first limiting rod and the second limiting rod, and the first limiting rod is located between the limiting plate and the feeding mechanism.

[0016] By adopting the above technical solution, the first and second limit rods, together with the limit plate, can limit the movement range of the adjustment chamber and prevent excessive movement of the adjustment chamber.

[0017] Optionally, the discharge end of the regulating chamber is provided with a discharge channel. The control component includes two control plates slidably connected to the regulating chamber and two third driving components connected to the regulating chamber. The control plates and the third driving components correspond one-to-one. The third driving components are used to drive the corresponding control plate to slide towards or away from the other control plate. The regulating chamber is provided with a clearance groove communicating with the discharge channel. The control plates are used to slide and cooperate with the clearance groove. The opposing sides of the two control plates can abut against each other.

[0018] By adopting the above technical solution, the control plate, driven by the third driving component, can slide in the clearance groove and abut against the opposite side. This structure facilitates the control of the opening and closing of the discharge end of the regulating chamber. The sliding cooperation between the control plate and the clearance groove guides and limits the sliding of the control plate, thereby improving the stability of the sliding of the control plate and enabling the control plate to move to the corresponding position.

[0019] Optionally, the inner wall of the discharge channel is connected to a receiving rod, the extension direction of the receiving rod is perpendicular to the movement direction of the control plate, and the receiving rod can fit against the side of each control plate away from the fixed chamber.

[0020] By adopting the above technical solution, when the control plate moves to close the discharge channel, the receiving rod can fit against the side of the control plate away from the fixed chamber, providing support for the control plate, improving its stability when closing the discharge channel, and reducing deformation or displacement of the control plate due to factors such as foam particle accumulation. This ensures the reliability of the control plate's control over the opening and closing of the discharge channel. The receiving rod also prevents foam particles from falling through the gap between the two control plates.

[0021] Optionally, the inner wall of the discharge channel is connected to at least two support plates, the extension direction of the support plates is the same as the movement direction of the control plate, and one side of each support plate is in contact with the control plate.

[0022] By adopting the above technical solution, a support plate is set on the inner wall of the discharge channel, with the extension direction being the same as the movement direction of the control plate and fitting against the control plate. This provides support and guidance for the sliding of the control plate, making the movement of the control plate more stable and improving the stability and reliability of the control components in controlling the on / off state of the discharge end of the regulating bin, thereby ensuring the stability and accuracy of the discharge process of the weighing bin.

[0023] A feeding control method, characterized in that: Step A, feeding: The controller controls the feeding mechanism to operate, and the feeding mechanism feeds the foam particles into the hopper until the foam particles are piled up to the first material level sensor. The first material level sensor receives the signal and outputs a signal to the controller. The controller receives the signal and outputs a signal to the feeding mechanism. The controller controls the feeding mechanism to stop operating. Step B, Weighing: The weighing sensor weighs the foam particles in the chamber. If the weight of the foam particles in the chamber is greater than the weight of foam particles required by the molding machine, it meets the standard and the foam particles in the chamber are transported to the molding machine. If the weight of the foam particles in the chamber is less than the weight of foam particles required by the molding machine, it does not meet the standard. Based on the weight of the foam particles in the chamber and the volume of the chamber, the density of this batch of foam particles is calculated, and the process proceeds to Step C. Step C: The controller controls the feeding mechanism to run again. The feeding mechanism adds material to the extension chamber until the weight of the foam particles in the chamber and the extension chamber reaches the weight of the foam particles required by the molding machine. The weighing sensor receives the signal and outputs the signal to the controller. The controller receives the signal and outputs the signal to the feeding mechanism. The controller controls the feeding mechanism to stop running. At this time, the weight of the foam particles in the chamber and the extension chamber is the value required by the molding machine. Step D, Adjusting the molding machine: Based on the density of the foam particles in this batch and the weight of the foam particles in the chamber and the extension chamber, calculate the volume of the foam particles in the chamber and the extension chamber. The volume of the foam particles in the extension chamber is the volume of the foam particles in the extension chamber minus the volume of the foam particles in the chamber. Adjust the capacity of the molding machine according to the volume of the foam particles in the extension chamber. The increased capacity of the molding machine is the volume of the foam particles in the extension chamber. The foam particles in the chamber and the extension chamber are then conveyed to the molding machine.

[0024] By adopting the above technical solution, it is easy to make the weight of the foam particles in the chamber and the extension chamber reach the corresponding value, so that the weight of the foam board after molding is the standard weight.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. When the weight of the foam particles in the chamber is less than the weight of the foam particles required by the molding machine, the density of the foam particles in this batch can be calculated. Based on the weight of the foam particles required by the molding machine, foam particles are added to the extension chamber until the weight of the foam particles in the chamber and the extension chamber reaches the required value, so that the weight of the foam board after molding is the standard weight.

[0026] 2. Based on the density of the batch of foam particles and the required weight of foam particles, the full volume of foam particles in the chamber and extension chamber can be calculated. Adjust the capacity of the molding machine so that the foam particles in the chamber and extension chamber can be transferred into the molding machine. Attached Figure Description

[0027] Figure 1 This is one of the overall structural schematic diagrams of an embodiment of this application, showing a weighing sensor.

[0028] Figure 2 This is a cross-sectional view of an embodiment of this application.

[0029] Figure 3 yes Figure 2 An enlarged view of region A.

[0030] Figure 4 This is the second overall structural schematic diagram of an embodiment of this application, showing the lifting component.

[0031] Figure 5 yes Figure 4 A magnified view of region B.

[0032] Figure 6 yes Figure 4 A magnified view of region C.

[0033] Figure 7 yes Figure 2 A magnified view of region D.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 11. First limit rod; 12. Weighing sensor; 13. Second limit rod; 2. Temporary storage box; 3. Bin body; 31. Fixed bin; 311. Connecting plate; 312. Extension bin; 313. First material level sensor; 32. Adjustment bin; 321. Threaded plate; 322. Limiting plate; 323. Discharge channel; 324. Clearance groove; 325. Receiving rod; 326. Support plate; 4. Storage bin; 41. Second material level sensor; 42. Baffle; 43. First driving component; 44. First channel; 45. Side plate; 46. Drive cylinder; 5. Lifting assembly; 51. Worm gear; 511. Gear; 52. Connecting rod; 53. Lead screw; 54. Second driving component; 6. Control assembly; 61. Control board; 62. Third driving component. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -Attached Figure 7 This application will be described in further detail.

[0036] This application discloses a weighing hopper and a feeding control method.

[0037] like Figure 1 As shown, the system includes a frame 1, a temporary storage box 2, and a controller (not shown in the attached diagram). The temporary storage box 2 is located at the bottom of the frame 1, and several discharge pipes are fixedly connected to its outer surface. The foam particles inside the temporary storage box 2 are moved to the molding machine through the discharge pipes. The frame 1 is equipped with three first limit rods 11, each of which is integrally formed with the frame 1. Two adjacent first limit rods 11 are arranged perpendicularly, while two of the first limit rods 11 are arranged parallel to each other. Both of the two parallel first limit rods 11 are fixedly connected to mounting rods. Weighing sensors 12 are fixedly connected to the upper surfaces of the middle first limit rod 11 and the two mounting rods. The weighing sensors 12 are electrically connected to the controller and are strain gauge sensors. The frame 1 is connected to a chamber 3, which includes a fixed chamber 31 and an adjusting chamber 32. The fixed chamber 31 is located above the temporary storage box 2. Three connecting plates 311 are fixedly connected to the outer surface of the fixed chamber 31. The connecting plates 311 correspond one-to-one with the weighing sensors 12. The weighing end of the weighing sensor 12 is fixedly connected to the lower surface of the connecting plate 311. The three weighing sensors 12 are evenly distributed around the axis of the fixed chamber 31, and the distance from each weighing sensor 12 to the axis of the fixed chamber 31 is equal.

[0038] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the frame 1 is connected to a feeding mechanism, which is located above the fixed chamber 31. The feeding mechanism includes a storage chamber 4 fixedly connected to the frame 1, a baffle 42 slidably connected to the storage chamber 4, and a first driving member 43 for driving the baffle to slide. During the sliding process, the baffle 42 can cover the outlet of the storage chamber 4 to prevent the foam particles in the storage chamber 4 from being discharged. The first driving member 43 is fixedly connected to the outer surface of the storage chamber 4. The first driving member 43 is a cylinder. The signal output terminal of the controller is connected to the signal input terminal of the first driving member 43. The side of the baffle 42 near the first driving member 43 is fixedly connected to the output terminal of the first driving member 43. The storage chamber 4 has a first sliding groove for sliding cooperation with the baffle 42. The first sliding groove is connected to the outlet of the storage chamber 4. The storage chamber 4 has a first channel 44 on its side, which is connected to the storage chamber 4. The storage chamber 4 is slidably connected to a side plate 45. During the sliding process, the side plate 45 can cover the first channel 44 to prevent foam particles from being discharged from the storage chamber 4. A drive cylinder 46 for driving the side plate 45 to slide is fixedly connected to the outer surface of the storage chamber 4. The signal output terminal of the controller is connected to the signal input terminal of the drive cylinder 46. The side of the side plate 45 near the drive cylinder 46 is fixedly connected to the output terminal of the drive cylinder 46. The storage chamber 4 has a second sliding groove for sliding cooperation with the side plate 45. The second sliding groove is connected to the first channel 44. A feed pipe is fixedly connected to the outer surface of the storage bin 4, through which foam particles can be added to the storage bin 4. A second level sensor 41 is fixedly connected inside the storage bin 4, located at the upper end of the storage bin 4. The second level sensor 41 is a rotary paddle level switch and is electrically connected to the controller. When the height of the foam particles in the storage bin 4 reaches the second level sensor 41, the addition of foam particles to the storage bin 4 is stopped. An extension bin 312 is fixedly connected to one end of the fixed bin 31 near the storage bin 4. A first level sensor 313 is fixedly connected at the connection between the fixed bin 31 and the extension bin 312. The first level sensor 313 is a rotary paddle level switch and is electrically connected to the controller. When the height of the foam particles in the fixed bin 31 reaches the first level sensor 313, the addition of foam particles to the fixed bin 31 is stopped. The discharge end of the storage chamber 4 is funnel-shaped, and part of the discharge end is located inside the extension chamber 312. The foam particles in the storage chamber 4 enter the fixed chamber 31 through the extension chamber 312.

[0039] Combination Figure 4 and Figure 6As shown, the adjusting chamber 32 is located between the fixed chamber 31 and the temporary storage box 2. The fixed chamber 31 is connected to the adjusting chamber 32, and the adjusting chamber 32 surrounds the fixed chamber 31. The fixed chamber 31 is connected to a lifting assembly 5. The lifting assembly 5 includes at least one worm gear 51 rotatably connected to the fixed chamber 31, a connecting rod 52 rotatably connected to the fixed chamber 31, at least two worm wheels rotatably connected to the fixed chamber 31, a lead screw 53 fixedly connected to each worm wheel, and a second driving member 54 for driving one of the worm gears 51 to rotate. Taking this embodiment as an example, two worm gears 51 are rotatably connected to the fixed chamber 31, and four worm wheels are rotatably connected to the fixed chamber 31. Two worm wheels correspond to one worm gear 51, and each worm wheel meshes with the corresponding worm gear 51. A connecting rod 52 is located between two worm gears 51. Each worm gear 51 is perpendicular to the connecting rod 52, and the two worm gears 51 are parallel to each other. A gear 511 is fixedly connected to one end of each worm gear 51 near the connecting rod 52 and to both ends of the connecting rod 52. Adjacent gears 511 mesh. The second driving component 54 is a motor, fixedly connected to the adjusting chamber 32. The signal output terminal of the controller is connected to the signal input terminal of the second driving component 54. One end of one of the worm gears 51 near the second driving component 54 is fixedly connected to the output terminal of the second driving component 54. Four threaded plates 321 are fixedly connected to the outer surface of the adjusting chamber 32. Each threaded plate 321 corresponds to a lead screw 53, and the lead screw 53 is threadedly connected to the threaded plate 321.

[0040] Combination Figure 4 and Figure 6 As shown, the frame 1 is provided with four second limiting rods 13, with two adjacent second limiting rods 13 arranged vertically. The second limiting rods 13 are located between the first limiting rod 11 and the temporary storage box 2. Four limiting plates 322 are fixedly connected to the outer peripheral surface of the adjustment chamber 32. The limiting plates 322 correspond one-to-one with the second limiting rods 13. The limiting plates 322 are located between the first limiting rod 11 and the second limiting rod 13. The limiting plates 322 can abut against the first limiting rod 11 and the second limiting rod 13. The first limiting rod 11 and the second limiting rod 13 restrict the adjustment of the height of the adjustment chamber 32.

[0041] Combination Figure 2 and Figure 7As shown, the discharge end of the regulating chamber 32 has a discharge channel 323. The regulating chamber 32 is connected to a control component 6 for controlling the opening and closing of the discharge channel 323. The control component 6 includes two control plates 61 that are slidably connected to the regulating chamber 32 and two third drive components 62 that are fixedly connected to the regulating chamber 32. The control plates 61 and the third drive components 62 correspond one-to-one. The third drive components 62 are cylinders. The signal output terminal of the controller is connected to the signal input terminal of the third drive component 62. The side of the control plate 61 closest to the corresponding third drive component 62 is fixedly connected to the output terminal of the third drive component 62. The regulating chamber 32 has a clearance groove 324 that communicates with the discharge channel 32353. The control plates 61 slide and cooperate with the clearance groove 324. During the sliding process, the opposing sides of the two control plates 61 can abut against each other. A receiving rod 325 is fixedly connected to the inner wall of the discharge channel 323. The extension direction of the receiving rod 325 is perpendicular to the movement direction of the control plate 61. When the control plate 61 moves above the receiving rod 325, the lower surface of the control plate 61 is in contact with the upper surface of the receiving rod 325. At least two support plates 326 are fixedly connected to the inner wall of the discharge channel 323. In this embodiment, four support plates 326 are fixedly connected to the inner wall of the discharge channel 323. The extension direction of the support plates 326 is the same as the movement direction of the control plate 61. Every two support plates 326 form a group. The two groups of support plates 326 are respectively connected to the two opposite side walls of the discharge channel 323. The receiving rod 325 is located between the two groups of support plates 326. The receiving rod 325 is also located between the two support plates 326 in each group. The lower surface of the control plate 61 is in contact with the upper surface of the support plate 326.

[0042] The implementation principle of a weighing silo in this application embodiment is as follows: Step A, Adjusting the adjustment chamber 32: Adjust the adjustment chamber 32 according to the required capacity of the molding machine. The controller controls the second drive component 54 to open, and the second drive component 54 drives the worm 51 to rotate. The worm 51 drives the lead screw 53 to rotate through the worm wheel meshing until the adjustment chamber 32 moves to the corresponding position. The controller controls the second drive component 54 to stop running, and the adjustment chamber 32 completes the adjustment. Step B, feeding: The controller controls the first drive unit 43 to open, the first drive unit 43 drives the baffle 42 to slide, so that the baffle 42 separates from the discharge port of the storage bin 4. The foam particles in the storage bin 4 fall into the fixed bin 31 and the regulating bin 32 under the influence of gravity, until the foam particles are piled up to the first material level sensor 313. The first material level sensor 313 receives the signal and outputs the signal to the controller. The controller receives the signal and outputs the signal to the first drive unit 43. The controller controls the first drive unit 43 to stop running. Step C, Weighing: Weighing sensor 12 weighs the foam particles in the fixed chamber 31 and the adjusting chamber 32. If the weight of the foam particles in the fixed chamber 31 and the adjusting chamber 32 is greater than the weight of foam particles required by the molding machine, it meets the standard and proceeds directly to step F; if the weight of the foam particles in the fixed chamber 31 and the adjusting chamber 32 is less than the weight of foam particles required by the molding machine, it does not meet the standard. Based on the weight of the foam particles in the fixed chamber 31 and the adjusting chamber 32 at this time and the volume of the fixed chamber 31 and the adjusting chamber 32, the density of the batch of foam particles is calculated and proceeds to step D. Step D, feeding: The controller controls the first drive component 43 to open, and the first drive component 43 drives the baffle 42 to slide, so that the baffle 42 separates from the discharge port of the storage chamber 4. The foam particles in the storage chamber 4 fall into the extension chamber 312 under the influence of gravity until the weight of the foam particles in the fixed chamber 31, the adjusting chamber 32 and the extension chamber 312 reaches the weight of the foam particles required by the molding machine. The weighing sensor 12 receives the signal and outputs the signal to the controller. The controller receives the signal and outputs the signal to the first drive component 43. The controller controls the first drive component 43 to stop running. At this time, the weight of the foam particles in the fixed chamber 31, the adjusting chamber 32 and the extension chamber 312 is the required value. Step E, Adjusting the molding machine: Based on the density of the batch of foam particles and the weight of the foam particles in the fixed chamber 31, the adjusting chamber 32 and the extension chamber 312, the full volume of foam particles in the fixed chamber 31, the adjusting chamber 32 and the extension chamber 312 can be calculated. Subtracting the full capacity of the foam particles in the fixed chamber 31 and the adjusting chamber 32 from this volume gives the volume of foam particles in the extension chamber 312. Adjust the capacity of the molding machine according to the volume of foam particles in the extension chamber 312. The increased capacity of the molding machine is the volume of foam particles in the extension chamber 312. Step F, Discharge: The controller controls the second drive component 54 to open, and the second drive component 54 drives the worm gear 51 to rotate. The worm gear 51 drives the lead screw 53 to rotate through the worm wheel meshing, so that the adjusting chamber 32 slides towards the temporary storage box 2 until the limiting plate 322 abuts against one side of the second limiting rod 13. The controller controls the third drive component 62 to stop running, and the discharge end of the adjusting chamber 32 is inserted into the feed end of the temporary storage box 2. The controller controls the two third drive components 62 to open, and the two third drive components 62 drive the corresponding control plates 61 to move away from each other, so that the discharge end of the adjusting chamber 32 opens. The foam particles in the adjusting chamber 32, the fixed chamber 31 and the extension chamber 312 fall into the temporary storage box 2 under the influence of gravity. The foam particles in the temporary storage box 2 then move to the molding machine.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A weighing silo, characterized in that: The device includes a frame (1), a feeding mechanism, and a controller. The frame (1) is connected to a weighing sensor (12). The weighing end of the weighing sensor (12) is connected to a bin (3). The bin (3) is connected to a control component (6). The control component (6) is used to control the opening and closing of the discharge end of the bin (3). The feeding end of the bin (3) is connected to an extension bin (312). A first level sensor (313) is provided at the connection between the bin (3) and the extension bin (312). The discharge end of the feeding mechanism corresponds to the extension bin (312). The extension bin (312) is located between the feeding mechanism and the bin (3). The weighing sensor (12), the first level sensor (313), and the feeding mechanism are all electrically connected to the controller.

2. The weighing silo according to claim 1, characterized in that: The feeding mechanism includes a storage bin (4) connected to the frame (1), a baffle (42) slidably connected to the storage bin (4), and a first driving member (43) for driving the baffle (42) to slide. The first driving member (43) is connected to the storage bin (4). The storage bin (4) is located above the extension bin (312). The discharge end of the storage bin (4) corresponds to the feed end of the extension bin (312). The baffle (42) is used to cover the discharge port of the storage bin (4). The first driving member (43) is electrically connected to the controller.

3. The weighing silo according to claim 1, characterized in that: The hopper (3) includes a fixed hopper (31) and an adjustable hopper (32) slidably connected to the fixed hopper (31). The adjustable hopper (32) is connected to the fixed hopper (31). The fixed hopper (31) is located between the extended hopper (312) and the adjustable hopper (32). The control component (6) is used to control the opening and closing of the discharge end of the adjustable hopper (32). The fixed hopper (31) is connected to the weighing end of the weighing sensor (12). The fixed hopper (31) is connected to a lifting component (5). The lifting component (5) is used to drive the adjustable hopper (32) to lift.

4. The weighing silo according to claim 3, characterized in that: The lifting assembly (5) includes at least one worm (51) rotatably connected to the fixed chamber (31), at least two worm wheels rotatably connected to the fixed chamber (31), a lead screw (53) fixedly connected to each of the worm wheels, and a second drive member (54) for driving the worm (51) to rotate. The second drive member (54) is connected to the fixed chamber (31). Each of the worm wheels meshes with the worm (51), and each of the lead screws (53) is threadedly connected to the adjusting chamber (32).

5. The weighing silo according to claim 2, characterized in that: The lifting assembly (5) further includes a connecting rod (52) rotatably connected to the fixed chamber (31), two worm gears (51) rotatably connected to the fixed chamber (31), and four worm wheels rotatably connected to the fixed chamber (31). The connecting rod (52) is located between the two worm gears (51). Each worm gear (51) has a gear (511) connected to one end near the connecting rod (52) and both ends of the connecting rod (52). Two adjacent gears (511) mesh, and every two worm wheels mesh with one worm gear (51).

6. The weighing silo according to claim 1, characterized in that: The frame (1) is provided with a first limiting rod (11) and a second limiting rod (13). The adjusting chamber (32) is connected to a limiting plate (322). The limiting plate (322) is used to abut against the first limiting rod (11) and the second limiting rod (13). The limiting plate (322) is located between the first limiting rod (11) and the second limiting rod (13). The first limiting rod (11) is located between the limiting plate (322) and the feeding mechanism.

7. The weighing silo according to claim 1, characterized in that: The discharge end of the regulating chamber (32) is provided with a discharge channel (323). The control component (6) includes two control plates (61) slidably connected to the regulating chamber (32) and two third drive members (62) connected to the regulating chamber (32). The control plates (61) and the third drive members (62) correspond one-to-one. The third drive members (62) are used to drive the corresponding control plate (61) to slide towards or away from the other control plate (61). The regulating chamber (32) is provided with a clearance groove (324) communicating with the discharge channel (323). The control plate (61) is used to slide and cooperate with the clearance groove (324). The two control plates (61) can abut against each other on opposite sides.

8. The weighing silo according to claim 7, characterized in that: The inner wall of the discharge channel (323) is connected to a receiving rod (325). The extension direction of the receiving rod (325) is perpendicular to the movement direction of the control plate (61). The receiving rod (325) can fit against the side of each control plate (61) away from the fixed chamber (31).

9. The weighing silo according to claim 7, characterized in that: The inner wall of the discharge channel (323) is connected to at least two support plates (326). The extension direction of the support plates (326) is the same as the movement direction of the control plate (61). One side of each support plate (326) is in contact with the control plate (61).

10. A feeding control method, characterized in that: Step A, feeding: The controller controls the feeding mechanism to run, and the feeding mechanism feeds the foam particles into the silo (3) until the foam particles are piled up to the first material level sensor. The first material level sensor receives the signal and outputs the signal to the controller. The controller receives the signal and outputs the signal to the feeding mechanism. The controller controls the feeding mechanism to stop running. Step B, Weighing: The weighing sensor (12) weighs the foam particles in the chamber (3). If the weight of the foam particles in the chamber is greater than the weight of the foam particles required by the molding machine, it meets the standard and the foam particles in the chamber are transported to the molding machine. If the weight of the foam particles in the chamber (3) is less than the weight of the foam particles required by the molding machine, it does not meet the standard. Based on the weight of the foam particles in the chamber (3) and the volume of the chamber (3) at this time, the density of the batch of foam particles is calculated and proceeds to step C. Step C: The controller controls the feeding mechanism to run again. The feeding mechanism adds material to the extension chamber (312) until the weight of the foam particles in the chamber (3) and the extension chamber (312) reaches the weight of the foam particles required by the molding machine. The weighing sensor (12) receives the signal and outputs the signal to the controller. The controller receives the signal and outputs the signal to the feeding mechanism. The controller controls the feeding mechanism to stop running. At this time, the weight of the foam particles in the chamber (3) and the extension chamber (312) is the value required by the molding machine. Step D, Adjust the molding machine: Calculate the volume of foam particles in the chamber (3) and the extension chamber (312) based on the density of the batch of foam particles and the weight of the foam particles in the chamber (3) and the extension chamber (312). Subtract the volume of foam particles in the chamber (3) from the volume of foam particles in the extension chamber (312) to get the volume of foam particles in the extension chamber (312). Adjust the capacity of the molding machine according to the volume of foam particles in the extension chamber (312). The increased capacity of the molding machine is the volume of foam particles in the extension chamber (312). The foam particles in the chamber (3) and the extension chamber (312) are then transported to the molding machine.

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