An automatic regulation material loosening system and method based on blanking quantity detection

Abstract

The present invention discloses a self-regulating material loosening system and method based on blanking quantity detection, including a storage bin, a blanking device arranged inside it. A middle bin is arranged below the storage bin, and a level gauge is arranged on the middle bin. The level gauge is used to detect the relationship between the actual material level in the middle bin and the material level point corresponding to the level gauge. The present invention arranges a middle bin between the storage bin and the auger conveying pipeline, and sets a blanking device and a level gauge. The middle bin is used to temporarily store and transfer materials. At the same time, the actual material level height is monitored by the level gauge, and the blanking device is used to match different material level heights to adjust the blanking rate of the storage bin, so that the blanking rate of the storage bin can be close to the blanking rate of the auger conveying pipeline, in order to achieve the purpose of preventing material blockage and empty section transportation during the material transportation process.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board preparation, and specifically relates to a self-regulating material loosening system and method based on blanking amount detection. Background Art

[0002] Gypsum board is formed by mixing gypsum with water, various additives and foaming agents to form a slurry, which is then poured onto cardboard and finally formed into a finished gypsum board through a series of processes. In the production process of gypsum board, powder materials (such as powder, starch, etc.) are an essential additive. Currently, the addition method of powder materials is to add them into the mixing reamer through the blanking port of the storage bin, and then the mixing reamer transports various auxiliary materials into the mixer.

[0003] Generally, the blanking rate at the blanking port of the storage bin is kept consistent with the conveying rate of the mixing reamer, so that there will be no problems of material accumulation, blockage or empty feeding during the overall conveying of materials. However, due to the poor fluidity of powder materials, easy caking, and large pressure on the blanking port, the blanking rate of the storage bin often does not match the conveying rate of the mixing reamer, resulting in blockage at the blanking port or the problem of empty section conveying of the mixing reamer. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-regulating material loosening system and method based on blanking amount detection to solve the technical problems of blockage or empty section transportation caused by the inconsistent blanking rate between the storage bin and the mixing reamer in the prior art.

[0005] To solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A self-regulating material loosening method based on blanking amount detection includes setting a blanking device in a storage bin, setting an intermediate bin at the discharge port of the storage bin, and setting a screw conveyor pipeline below the intermediate bin. Among them, when the blanking device operates, the storage bin feeds materials into the intermediate bin, and the materials enter the screw conveyor pipeline through the intermediate bin and are then transported to the mixer;

[0007] The discharge port of the intermediate bin is arranged close to the inlet of the screw conveyor pipeline to limit the material blanking in the intermediate bin when the screw conveyor pipeline does not operate, and the transmission rate of the screw conveyor pipeline is positively correlated with the blanking rate of the powder material in the intermediate bin;

[0008] A material level point for adjusting the blanking of the storage bin is set in the intermediate bin, and a level gauge is set at the material level point to detect the relationship between the actual material level in the intermediate bin and the material level point;

[0009] When the actual material level is lower than the material level point, the blanking device is controlled by the upper computer to operate, and the storage bin feeds materials to replenish the intermediate bin;

[0010] When the actual material level is higher than the material point, the feeding device is controlled by the host computer to stop operating, and the storage bin stops feeding.

[0011] Among them, the transmission rate of the auger conveying pipeline is adjusted by the host computer to adjust the feeding amount to the mixer.

[0012] As a preferred solution of the present invention, the material points include a feeding material point and a discharging material point. The feeding material point is located above the discharging material point, and a material level meter is provided at each of the feeding material point and the discharging material point.

[0013] When the actual material level is lower than the feeding material point and higher than the discharging material point, the host computer controls the feeding device to operate, and the storage bin replenishes the intermediate bin at a secondary feeding rate.

[0014] When the actual material level is lower than the discharging material point, the host computer controls the feeding device to operate, and the storage bin replenishes the intermediate bin at a primary feeding rate.

[0015] Among them, the feeding amount per unit time of the primary feeding rate is greater than the feeding amount per unit time of the secondary feeding rate.

[0016] As a preferred solution of the present invention, the secondary feeding rate is a variable-frequency feeding rate. The host computer controls the storage bin to select a matching feeding rate from the variable-frequency feeding rates by monitoring the feeding speed of the intermediate bin, so as to keep the feeding rates of the storage bin and the intermediate bin the same as much as possible.

[0017] As a preferred solution of the present invention, it further includes: when the mixer reaches the preset feeding amount, a signal is transmitted to the host computer and the auger conveying pipeline stops operating, and then stops.

[0018] As a preferred solution of the present invention, it further includes: when the actual material level repeatedly crosses above and below the feeding material point within a preset time, the host computer controls the storage bin not to feed until the actual material level is lower than the discharging material point, and then the host computer controls the storage bin to feed to replenish the intermediate bin.

[0019] A self-regulating material loosening system based on feeding amount detection, characterized by including

[0020] A storage bin for storing materials. A host computer is arranged outside the storage bin, and a feeding device is arranged inside. The host computer is communicatively connected with the feeding device, and the feeding device is used to control the feeding rate of the storage bin.

[0021] A middle bin is provided below the storage bin. The middle bin is used for temporarily storing materials. A screw conveyor channel is provided below the middle bin, and the discharge port of the middle bin is arranged at the inlet of the screw conveyor channel. The screw conveyor channel is used for receiving the materials discharged from the middle bin and transporting them to a mixer;

[0022] Level gauges. There are two level gauges, and the two level gauges are vertically distributed at different positions in the middle bin. The level gauges are used to detect the relationship between the actual material level in the middle bin and the material level points corresponding to the level gauges.

[0023] As a preferred solution of the present invention, the feeding device includes an opposed valve panel. The opposed valve panel is arranged at the discharge port of the storage bin and closes this discharge port. A plurality of shaped material holes for releasing materials are arranged on the valve panel, and the opposed valve panel is also connected with an automatic switch, and the automatic switch is used for opening and closing the opposed valve panel;

[0024] Among them, the materials are discharged from the shaped material holes at a secondary discharging rate, and the materials are discharged from the middle of the opened opposed valve panel at a primary discharging rate.

[0025] As a preferred solution of the present invention, the feeding device further includes a main shaft. The main shaft is horizontally arranged in the storage bin. Both ends of the main shaft are connected with a driving source for driving the main shaft to rotate along its own long axis. A plurality of plow-shaped shaping scrapers are arranged on the main shaft. The plow-shaped shaping scrapers are arranged directly above the opposed valve panel. The number of the plow-shaped shaping scrapers is the same as that of the shaped material holes and the positions correspond one by one;

[0026] The main shaft drives the plow-shaped shaping scrapers to make a circular motion in the storage bin. There are some segments in the circular motion trajectory formed by the plow-shaped shaping scrapers that pass through the shaped material holes, and at least one position in this part of the circular motion trajectory passing through the shaped material holes can completely close the shaped material holes to achieve the effect of blocking the feeding;

[0027] The driving source adjusts the number of times the plow-shaped shaping scrapers close the shaped material holes per unit time by changing the rotation speed of the main shaft, so as to achieve a variable-frequency feeding rate of the materials in the storage bin.

[0028] As a preferred solution of the present invention, the plow-shaped shaping scraper includes a connecting column. A plurality of the connecting columns are circumferentially arranged around the outer surface of the main shaft, and there is a spacing between adjacent connecting columns;

[0029] One end of the connecting column is installed on the main shaft, and the other end is connected with a V-shaped cutter head. The end where the V-shaped cutter heads are joined together is arranged on the connecting column.

[0030] As a preferred embodiment of the present invention, the inclination angles of the two inclined surfaces of the V-shaped cutter head are the same as the inclination angle of the storage bin wall, and a plurality of material-discharging perforations are provided on the inclined surface of the V-shaped cutter head.

[0031] The present invention has the following beneficial effects compared with the prior art:

[0032] An intermediate bin is provided between the storage bin and the auger conveying pipeline of the present invention, and a blanking device and a level gauge are provided. The intermediate bin is used to temporarily store and transfer materials. At the same time, the actual material level height is monitored by the level gauge, and the blanking rate of the storage bin is adjusted by matching different material level heights with the blanking device, so that the blanking rate of the storage bin can be close to the blanking rate of the auger conveying pipeline, so as to reduce the purpose of non-blocking and non-empty-section transportation during the material transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the internal structure of the storage bin in the present invention.

[0036] The reference numerals in the drawings are respectively represented as follows:

[0037] 1. Storage bin; 2. Host computer; 4. Intermediate bin; 5. Auger conveying channel; 6. Level gauge; 7. Split valve panel; 8. Shaped material hole; 9. Main shaft; 10. Plow-shaped shaping scraper; 11. V-shaped cutter head; 12. Material-discharging perforation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0039] As Figures 1 to 2 shown, the present invention provides a self-regulating material loosening method based on blanking amount detection, including

[0040] A blanking device is arranged in the storage bin 1, an intermediate bin 4 is arranged at the discharge port of the storage bin 1, and a screw conveyor pipeline is arranged below the intermediate bin 4. Among them, when the blanking device operates, the storage bin 1 discharges materials into the intermediate bin 4, and the materials enter the screw conveyor pipeline through the intermediate bin 4 and are then transported to the mixer.

[0041] The discharge port of the intermediate bin 4 is arranged close to the inlet of the screw conveyor pipeline to restrict the discharge of materials in the intermediate bin 4 when the screw conveyor pipeline does not operate, and the transmission speed of the screw conveyor pipeline is positively correlated with the discharge speed of the powder materials in the intermediate bin 4.

[0042] A material level point for adjusting the blanking of the storage bin 1 is set in the intermediate bin 4, and a level meter 6 is arranged at the material level point to detect the relationship between the actual material level in the intermediate bin 4 and the material level point.

[0043] When the actual material level is lower than the material level point, the blanking device is controlled to operate by the upper computer 2, and the storage bin 1 discharges materials to replenish the intermediate bin 4.

[0044] When the actual material level is higher than the material level point, the blanking device is controlled to stop operating by the upper computer 2, and the storage bin 1 stops discharging materials.

[0045] Among them, the transmission speed of the screw conveyor pipeline is adjusted by the upper computer 2 to adjust the feeding amount to the mixer.

[0046] The material level points include a feeding material level point and a discharging material level point. The feeding material level point is located above the discharging material level point, and a level meter 6 is arranged at each of the feeding material level point and the discharging material level point.

[0047] When the actual material level is lower than the feeding material level point and higher than the discharging material level point, the upper computer 2 controls the blanking device to operate, and the storage bin 1 replenishes the intermediate bin 4 at a secondary blanking speed.

[0048] When the actual material level is lower than the discharging material level point, the upper computer 2 controls the blanking device to operate, and the storage bin 1 replenishes the intermediate bin 4 at a primary blanking speed.

[0049] Among them, the material discharge amount per unit time of the primary blanking speed is greater than the material discharge amount per unit time of the secondary blanking speed.

[0050] The secondary blanking speed is a variable-frequency blanking speed. The upper computer 2 controls the storage bin 1 to select a matching blanking speed from the variable-frequency blanking speeds by monitoring the blanking speed of the intermediate bin 4, so as to keep the blanking speeds of the storage bin 1 and the intermediate bin 4 as the same as possible.

[0051] It also includes: when the mixer reaches the preset feeding amount, a signal is transmitted to the upper computer 2 and the screw conveyor pipeline is stopped from operating, and then it stops.

[0052] It also includes: when the actual material level repeatedly crosses above and below the feeding point within a preset time, the upper computer 2 controls the storage bin 1 not to discharge materials. Until the actual material level is lower than the discharging point, the upper computer 2 controls the scraper of the storage bin 1 to discharge materials to replenish the intermediate bin 4.

[0053] Specifically, in this embodiment, the discharge port of the intermediate bin 44 is close to the auger conveying pipeline. The distance between the two can be determined according to actual tests and generally cannot be set too large, because it is necessary to rely on the distance between the two to prevent all the powder in the intermediate bin 44 from being discharged into the auger conveying pipeline in a short time. Or rather, during the discharging process, if the auger conveying pipeline does not move, when the powder in the intermediate bin 44 reaches a certain position, the material at the position of the auger conveying pipeline below the discharging bottom of the intermediate bin 44 will accumulate and limit the continuous discharging of the intermediate bin 44.

[0054] The feature of this device is that there are a feeding point and a discharging point set on the intermediate bin 4. When the actual material level is above the feeding point, the discharging device stops discharging at this time. Only when the actual material level is lower than the feeding point will the storage bin 1 be driven to discharge materials. And more specifically, when the actual material level is lower than the feeding point, there are two possibilities.

[0055] One is between the feeding point and the discharging point, and the other is below the discharging point. Among them, if the actual material level is in the latter state, it means that the material in the intermediate bin 4 is less at this time. At this time, the discharging device opens the maximum discharging speed, that is, the first-level discharging rate, so that the material in the storage bin 1 can enter the intermediate bin 4 faster for replenishment to prevent the situation of empty materials.

[0056] Such as Figure 2 As shown, the practical way corresponding to this method can be carried out through the split valve panel 7. The discharging device includes a split valve panel 7. The split valve panel 7 is arranged at the discharging port of the storage bin 1 and closes this discharging port. There are a plurality of shaped material holes 8 for releasing materials arranged on the valve panel, and the split valve panel 7 is also connected with an automatic switch, and the automatic switch is used to open and close the split valve panel 7.

[0057] Among them, the discharging rate of the material from the shaped material hole 8 is the second-level discharging rate, and the discharging rate of the material from the middle of the opened split valve panel 7 is the first-level discharging rate.

[0058] When it is necessary to select the first-level discharging rate, the upper computer 2 can be used to control the automatic switch to open the split valve panel 7, so that the discharging port of the storage bin 1 is completely opened. At this time, the diameter of the discharging channel is the largest, so that the discharging amount is the largest, thus realizing the first-level discharging rate.

[0059] Among them, the discharging rate of the material from the shaped material hole 8 is the second-level discharging rate, and the discharging rate of the material from the middle of the opened split valve panel 7 is the first-level discharging rate.

[0060] Another situation is that the actual material level is between the loading point and the unloading point, which means there is still a certain amount of material in the intermediate bin 4. At this time, the unloading device selects the secondary unloading rate to feed the material into the intermediate bin 4. In this case, due to the self-characteristics of the powder unloading, the unloading speed of the storage bin 1 may change. Therefore, the secondary unloading rate is further subdivided into a variable-frequency unloading speed, and the material in the storage bin 1 is adjusted by the variable-frequency unloading rate, so as to match the unloading speed of the intermediate bin 4 and the conveying speed of the auger conveying pipeline.

[0061] When selecting the secondary unloading rate, the following structure can be adopted.

[0062] The unloading device further includes a main shaft 9, which is horizontally arranged in the storage bin 1. Both ends of the main shaft 9 are connected with a driving source for driving the main shaft 9 to rotate along its own long axis. A plurality of plow-shaped shaping scrapers 10 are arranged on the main shaft 9. The plow-shaped shaping scrapers 10 are arranged directly above the split valve panel 7. The number of plow-shaped shaping scrapers 10 is the same as that of the shaping holes 8 and the positions correspond one by one.

[0063] As Figure 2 shown, the main shaft 9 drives the plow-shaped shaping scrapers 10 to make a circular motion in the storage bin 1. There are some segments in the circular motion trajectory formed by the plow-shaped shaping scrapers 10 that pass through the shaping holes 8, and at least one position in this part of the circular motion trajectory passing through the shaping holes 8 can completely close the shaping holes 8 to achieve the effect of blocking the unloading.

[0064] The driving source adjusts the number of times the plow-shaped shaping scrapers 10 close the shaping holes 8 per unit time by changing the rotation speed of the main shaft 9, so as to achieve the variable-frequency unloading rate of the material in the storage bin 1.

[0065] The specific operation is as follows: the main shaft 9 is driven to rotate by an external driving source. At this time, the plow-shaped shaping scrapers 10 are synchronously driven to rotate and make a circular motion in the storage bin 1. When the plow-shaped shaping scrapers 10 move in the shaping holes 8, since there is a position (which can be set as the position where the plow-shaped shaping scrapers 10 are facing downwards) that completely closes the shaping holes 8, the unloading amount in the storage bin 1 is 0 at this time. After that, as the plow-shaped shaping scrapers 10 leave this position, the material continues to fall.

[0066] Therefore, by controlling the number of times the plow-shaped shaping scrapers 10 close the shaping holes 8 per unit time, the unloading amount per unit time can be adjusted.

[0067] For example, in the variable-frequency unloading rate, if it is desired to slow down the unloading rate of the storage bin 1, then the external driving source speeds up the rotation rate of the main shaft 9 at this time, so as to increase the number of times the plow-shaped shaping scrapers 10 close the shaping holes 8 per unit time. Then the unloading amount will decrease at this time.

[0068] If it is desired to increase the feeding rate of the storage bin 1, the external drive source is made to slow down the rotation rate of the main shaft 9, thereby reducing the number of times the plow-shaped shaping scraper 10 closes the shaping material holes 8 per unit time, enabling the material to pass through the shaping material holes 8 as much as possible, and thus increasing the feeding amount at this time.

[0069] The present invention provides a self-regulating material loosening system based on feeding amount detection, including a storage bin 1 for storing materials. An upper computer 2 is arranged outside the storage bin 1, and a feeding device is arranged inside. The upper computer 2 is communicatively connected to the feeding device, and the feeding device is used to control the feeding rate of the storage bin 1.

[0070] A middle bin 4 is arranged below the storage bin 1, and the middle bin 4 is used to temporarily store materials. A screw conveyor channel 5 is arranged below the middle bin 4, and the feeding port of the middle bin 4 is arranged at the feeding port of the screw conveyor channel 5. The screw conveyor channel 5 is used to receive the materials fed from the middle bin 4 and transport them to the mixer.

[0071] There are two level gauges 6, and the two level gauges 6 are vertically distributed at different positions inside the middle bin 6. The level gauges 6 are used to detect the relationship between the actual material level in the middle bin 4 and the material level points corresponding to the level gauges 6.

[0072] The plow-shaped shaping scraper 10 includes connecting columns 10. Multiple connecting columns 10 are circumferentially arrayed around the outer surface of the main shaft 9, and there is a spacing between adjacent connecting columns 10;

[0073] One end of the connecting column 10 is installed on the main shaft 9, and the other end is connected to a V-shaped cutter head 11. The converging end of the V-shaped cutter head 11 is arranged on the connecting column 10.

[0074] The inclination angles of the two inclined surfaces of the V-shaped cutter head 11 are the same as the inclination angle of the wall of the storage bin 1, and multiple material loosening through holes 12 are provided on the inclined surface of the V-shaped cutter head 11.

[0075] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A self-regulating material loosening system based on blanking quantity detection, characterized in that Including: A storage bin (1) for storing materials. An upper computer (2) is arranged outside the storage bin (1), and a blanking device (3) is arranged inside. The upper computer (2) is communicatively connected to the blanking device (3), and the blanking device (3) is used to control the blanking rate of the storage bin (1); A middle bin (4) is arranged below the storage bin (1). The middle bin (4) is used to temporarily store materials. A screw conveyor channel (5) is arranged below the middle bin (4), and the blanking port of the middle bin (4) is arranged at the feeding port of the screw conveyor channel (5). The screw conveyor channel (5) is used to receive the materials discharged from the middle bin (4) and transport them to a mixer; Level gauges (6). There are two level gauges (6), and the two level gauges (6) are vertically distributed at different positions inside the middle bin (6). The level gauges (6) are used to detect the relationship between the actual material level in the middle bin (4) and the material level points corresponding to the level gauges (6); The blanking device (3) includes an opposed valve panel (7). The opposed valve panel (7) is arranged at the blanking port of the storage bin (1) and closes this blanking port. A plurality of shaped material holes (8) for discharging materials are arranged on the opposed valve panel (7), and the opposed valve panel (7) is also connected to an automatic switch, and the automatic switch is used to open and close the opposed valve panel (7); Wherein, the materials discharged from the shaped material holes (8) have a secondary blanking rate, and the materials discharged from the middle of the opposed valve panel (7) after it is opened have a primary blanking rate; The blanking device (3) further includes a main shaft (9). The main shaft (9) is horizontally arranged inside the storage bin (1). Both ends of the main shaft (9) are connected to a driving source for driving the main shaft (9) to rotate along its own long axis. A plurality of plow-shaped shaping scrapers (10) are arranged on the main shaft (9). The plow-shaped shaping scrapers (10) are arranged directly above the opposed valve panel (7), and the number of the plow-shaped shaping scrapers (10) is the same as that of the shaped material holes (8) and their positions correspond one by one; The main shaft (9) drives the plow-shaped shaping scrapers (10) to make a circular motion inside the storage bin (1). There are some segments in the circular motion trajectory formed by the plow-shaped shaping scrapers (10) that pass through the shaped material holes (8), and at least one position in this part of the circular motion trajectory passing through the shaped material holes (8) can completely close the shaped material holes (8) to achieve the effect of blocking the blanking; The driving source adjusts the number of times the plow-shaped shaping scrapers (10) close the shaped material holes (8) per unit time by changing the rotation speed of the main shaft (9) to achieve a variable-frequency blanking rate of the materials in the storage bin (1); The plow-shaped shaping scraper (10) includes a connecting column (10). A plurality of the connecting columns (10) are circumferentially arrayed around the outer surface of the main shaft (9), and there is a spacing between adjacent connecting columns (10); One end of the connecting column (10) is mounted on the main shaft (9), and the other end is connected with a V-shaped cutter head (11). The converging end of the V-shaped cutter head (11) is arranged on the connecting column (10). The inclination angles of the two inclined surfaces of the V-shaped cutter head (11) are the same as the inclination angle of the wall of the storage bin (1), and a plurality of material discharging perforations (12) are formed on the inclined surface of the V-shaped cutter head (11).

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