Automatic powder weighing, conveying and feeding process and equipment for brick making

Abstract

The application discloses a kind of automatic weighing conveying feeding process and equipment for brick making powder, and relates to the technical field of quantitative conveying of raw materials for brick making.The equipment includes base frame, first hopper, discharging assembly, belt scale conveyor, second hopper, feeding conveyor, screw conveyor, material loosening assembly and transmission assembly.The transmission assembly is connected between the discharging assembly and the belt scale conveyor, used to keep the discharging speed and the conveying speed dynamically synchronized, and to control the discharging assembly to close first after reaching the preset amount, while the belt scale conveyor continues to empty the remaining material.The material loosening assembly is set in the first hopper, and generates reciprocating vibration by powder impact to prevent powder bridging and clogging.The application realizes precise matching of discharging and conveying, significantly improves dynamic weighing accuracy and batch control accuracy, and effectively solves the problem of hopper clogging, ensuring production continuity and automation level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of quantitative conveying of brick-making raw materials, in particular to an automatic powder weighing, conveying and feeding process and equipment for brick-making. BACKGROUND

[0002] In the process of brick-making production, accurate weighing and uniform feeding of powder are key links affecting the quality of finished products and production efficiency. At present, the industry generally uses a belt scale conveyor combined with a hopper to realize dynamic metering and conveying of powder. As a dynamic weighing device installed on a conveyor, the belt scale can calculate material flow and cumulative weight in real time through weighing sensors and speed sensors, and is widely used in continuous metering occasions in various industrial fields.

[0003] However, in actual application, it is found that the prior art still has several significant defects, which restrict the further improvement of weighing accuracy and system stability. First, the conveying speed of the belt scale conveyor is affected by multiple factors such as electrical fluctuations, mechanical transmission errors, load changes, environmental disturbances and human operation, and is prone to unstable speed. The traditional hopper often uses a gate valve or a rotary valve to control the discharge, and the discharge rate is often fixed, making it difficult to realize real-time coordination with the belt conveying speed. When the discharge speed is greater than the conveying speed, the powder is easy to accumulate on the belt, forming a layer of different thickness, which causes the signals collected by the weighing sensor in different sections to be inconsistent, introducing significant metering error; on the contrary, if the discharge speed is too slow, it may cause flow interruption or a thin layer, which also affects the accuracy and continuity of dynamic weighing.

[0004] Secondly, in batch metering control, it is often necessary to close the discharge in time when the preset weight is reached, and to ensure that the remaining material on the belt is completely conveyed. The existing system often uses independent motors or pneumatic actuators to control the discharge and conveying respectively, which has poor action coordination and it is difficult to accurately grasp the closing time, which may cause excessive feeding or residual material, affecting the consistency of batch weight.

[0005] In addition, the powder in the hopper is easy to cause "bridging", caking or blocking due to poor flowability, water content change, adsorption between particles and other reasons, which leads to poor discharge or even interruption, not only affecting the continuity of metering, but also requiring manual intervention to dredge, increasing maintenance cost and reducing the overall efficiency of the equipment.

[0006] Therefore, there is an urgent need for an automatic powder weighing and conveying technology and equipment that can automatically match the discharge speed and conveying speed, accurately coordinate the opening and closing actions, and effectively prevent hopper blockage, in order to improve the metering accuracy, operation reliability and automation level of the brick-making production line. SUMMARY

[0007] The present application aims at providing a powder automatic weighing, conveying and feeding process and equipment for brick making to solve the problems mentioned in the background.

[0008] To achieve the above object, the present application provides the following technical scheme: a powder automatic weighing, conveying and feeding equipment for brick making, comprising a base frame, a first hopper mounted on the top of the base frame, a discharging assembly mounted on the discharging end of the first hopper, the discharging assembly being used to block or open the discharging end of the first hopper to control the discharging amount of the powder in the first hopper; a belt scale conveyor mounted on the middle part of the base frame, one end of the belt scale conveyor being located below the discharging assembly and being used to weigh and convey the powder, a second hopper fixedly mounted on the bottom of one end of the belt scale conveyor; a feeding conveyor mounted on the lower end of the base frame, the feeding conveyor being located below the belt scale conveyor and being used to receive the weighed powder from the belt scale conveyor and convey and feed the powder to the next process;

[0009] A screw conveyor is arranged on one side of the base frame and is used to convey the powder to the first hopper, a material loosening assembly being mounted in the first hopper;

[0010] A transmission assembly is arranged between the discharging assembly and the belt scale conveyor and is used to control the opening and closing of the discharging assembly and match the conveying speed of the belt scale conveyor.

[0011] As a further scheme of the present application, the discharging assembly comprises a material box integrally formed with the discharging end of the first hopper, the middle inner cavity of the material box being a circular cavity structure, a rotating shaft being arranged in the middle inner cavity of the material box, the two ends of the rotating shaft being rotatably connected to the two side walls of the material box through bearings, a plurality of blades being annularly arranged on the outer wall of the rotating shaft, the outer side edges of the blades being close to the middle inner cavity wall of the material box.

[0012] As a further scheme of the present application, the material loosening assembly comprises a fixed frame fixedly connected to the inner upper end of the first hopper and having a cross-shaped structure, an active rod being movably arranged in the middle part of the fixed frame, a conical umbrella being mounted on the top of the active rod, a limiting block being fixedly connected to the upper end of the active rod and being close to the lower part of the conical umbrella, a spring being sleeved on the outer wall of the active rod and being located between the limiting block and the fixed frame.

[0013] A plurality of guide plates are arranged around the lower end of the active rod, the guide plates having a right-angled triangle shape structure and being integrally formed with the outer wall of the active rod, a plurality of rings being arranged between the guide plates.

[0014] As a further further scheme of the present application: the lower end of the outside of the conical umbrella shed has four guide rods, the lower end of the four guide rods is respectively movably penetrated on the four support rods of the fixed frame.

[0015] As a further further scheme of the present application: the guide material piece is a hollow piece-shaped right triangle structure, and the outer side of the guide material piece is inclined to match the inclination of the lower end of the first hopper.

[0016] As a further further scheme of the present application: the transmission assembly comprises a shell, a first synchronous pulley and a fixed pulley are arranged inside the shell, the first synchronous pulley is fixedly connected to one end of the output shaft of the belt scale conveyor, the fixed pulley is fixedly connected to one end of the rotating shaft, a second synchronous pulley is arranged on the outside of the fixed pulley, and the second synchronous pulley is rotatably connected to one side of the fixed pulley through a bearing.

[0017] A plurality of sliding grooves are formed on the outer end surface of the fixed pulley, the plurality of sliding grooves are arranged in an annular array on the outer end surface of the fixed pulley, a first insertion slot penetrating the fixed pulley is formed on the bottom end wall of the sliding groove, and a stop block is slidably connected in the sliding groove, a second insertion slot is formed at one end of the stop block, a plurality of annular array butt joints are formed on the outer diameter end of the second synchronous pulley, and the inner cavity profile of the butt joint matches the outer end profile of the stop block.

[0018] As a further further scheme of the present application: the transmission assembly further comprises a hydraulic cylinder mounted on the shell, a connecting pipe is fixedly connected to the output end of the hydraulic cylinder, a fixed block is fixedly connected to one end of the connecting pipe away from the hydraulic cylinder, an electromagnet is embeddedly installed on the side end surface of the fixed block away from the connecting pipe, an outer ring is rotatably connected to the outside of the fixed block through a bearing, a plurality of insertion rods are arranged in an annular array on one side end surface of the outer ring, and the lower ends of the plurality of insertion rods are respectively inserted into the plurality of second insertion slots.

[0019] As a further further scheme of the present application: the insertion rod comprises a first rod area connected with the outer ring, a second rod area is connected to the lower end of the first rod area, a protruding part towards the side of the electromagnet is arranged on the first rod area, a protruding part away from the side of the electromagnet is arranged on the second rod area, when the second rod area is located in the second insertion slot, the protruding part on the second rod area pushes the stop block to move outward, so that the outer end of the stop block is inserted into one of the butt joints, and when the first rod area is located in the second insertion slot, the second rod area is located in the first insertion slot, the protruding part on the first rod area pushes the stop block to move inward, so that the stop block is completely separated from the butt joint.

[0020] An automatic weighing and conveying process of an automatic weighing and conveying feeding equipment for brick-making powder, comprising the following steps:

[0021] Step one, automatic weighing; the powder used for brick-making is put into the first hopper, and then the powder is discharged from the first hopper to the belt scale conveyor, the weight change is monitored in real time through the high-precision weighing belt scale conveyor, and dynamic weighing is realized in combination with the PLC control system;

[0022] Step two, conveying; the conveying function of the belt scale conveyor is used to synchronize the weighing and conveying, the powder is conveyed into the second hopper for temporary storage until the weighing of the preset amount of powder is completed;

[0023] Step three, feeding; the second hopper is opened, the powder in the second hopper falls onto the feeding conveyor, the feeding conveyor conveys and feeds the powder into the mold, and the next process of pressing and making bricks is carried out.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1. The accurate speed matching and cooperative control of discharging and conveying are realized:

[0026] The present application sets up a mechanical linkage and an adjustable clutch transmission assembly, so that the discharging speed of the discharging assembly can follow the conveying speed change of the belt scale conveyor in real time, and dynamic synchronous adjustment is realized. This structure effectively solves the problems of uneven discharging, material accumulation or flow interruption caused by conveying speed fluctuation in traditional systems, ensures the uniform distribution and constant flow of powder on the belt, and significantly improves the dynamic weighing accuracy, so that the instantaneous flow error is controlled within ±0.1%.

[0027] 2. Intelligent start-stop and residual material emptying function in batch measurement:

[0028] The transmission assembly not only realizes speed synchronization, but also automatically switches state when the preset weighing value is reached, so that the discharging assembly is closed first and stops discharging, while the belt scale conveyor continues to run until the residual material on the belt is completely emptied. This mechanism avoids the problems of too much or too little material or residual material caused by asynchronous shutdown in traditional systems, ensures the accurate and consistent weight of each batch of powder, and improves production quality and feeding reliability.

[0029] 3. Effectively prevent and alleviate the problem of powder blockage in the hopper:

[0030] By setting the material loosening assembly with self-excited vibration function in the first hopper, the impact force of the screw conveyor feeding is used to drive the up-down reciprocating movement, continuously stirring and dredging the powder at the bottom of the hopper, preventing the blockage and poor feeding caused by powder bridging, caking or adhesion. The design improves the powder flowability, ensures the continuous and stable feeding process, reduces the manual cleaning intervention, and improves the overall operation efficiency and production continuity of the equipment.

[0031] 4. High structural integration, simplified control logic:

[0032] The device integrates weighing, conveying, discharging control and anti-blocking and material loosening functions, realizes automatic operation through mechanical linkage and sensor feedback, reduces the dependence on complex external control system. The system responds quickly and moves coordinately, improves the accuracy, and enhances the reliability and maintainability of the equipment, and is suitable for industrial application scenarios of quantitative conveying of brick and other powder and particle materials. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the present application;

[0034] Figure 2 is a mounting schematic diagram of the screw conveyor of the present application;

[0035] Figure 3 is a mounting structural schematic diagram of the first hopper, the discharging assembly, the belt scale conveyor and the transmission assembly of the present application;

[0036] Figure 4 is a schematic diagram of the internal structure of the first hopper of the present application;

[0037] Figure 5 is a structural schematic diagram of the material loosening assembly of the present application;

[0038] Figure 6 is a structural schematic diagram of the transmission assembly of the present application;

[0039] Figure 7 is a structural schematic diagram of the transmission assembly (after removing the shell) of the present application;

[0040] Figure 8 is a structural schematic diagram of the fixed wheel and the second synchronous pulley of the present application;

[0041] Figure 9 is a mounting schematic diagram of the insertion rod of the present application.

[0042] In the figure: 1, base frame; 2, first hopper; 3, discharging assembly; 301, hopper box; 302, rotating shaft; 303, blade; 4, belt scale conveyor; 5, second hopper; 6, feeding conveyor; 7, screw conveyor; 8, material loosening assembly; 801, fixed frame; 802, movable rod; 803, conical umbrella; 804, limiting block; 805, spring; 806, guide rod; 807, material guide piece; 808, ring; 9, transmission assembly; 901, housing; 902, first synchronous pulley; 903, fixed pulley; 904, synchronous belt; 905, second synchronous pulley; 906, chute; 907, first slot; 908, abutting block; 909, second slot; 910, butt joint groove; 911, hydraulic cylinder; 912, connecting pipe; 913, fixed block; 914, electromagnet; 915, outer ring; 916, insertion rod; 9161, first rod area; 9162, second rod area. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] Please refer to Figures 1-9 In the embodiments of the present application, a powder automatic weighing, conveying and feeding equipment for brick making includes a base frame 1, a first hopper 2 mounted on the top of the base frame 1, a discharging assembly 3 mounted at the discharging port end of the first hopper 2, the discharging assembly 3 being used for plugging or opening the discharging port end of the first hopper 2 to control the discharging amount of the powder in the first hopper 2, a belt scale conveyor 4 mounted on the middle part of the base frame 1, one end of the belt scale conveyor 4 being located below the discharging assembly 3, the belt scale conveyor 4 being used for weighing and conveying the powder, a second hopper 5 fixedly mounted at the bottom of one end of the belt scale conveyor 4, an electromagnetic switch valve being arranged at the discharging port below the second hopper 5, a feeding conveyor 6 mounted at the lower end of the base frame 1, the feeding conveyor 6 being located below the belt scale conveyor 4 and being used for receiving the weighed powder of the belt scale conveyor 4 and conveying and feeding the powder to the next process, a screw conveyor 7 arranged on one side of the base frame 1, the screw conveyor 7 being used for conveying the powder to the first hopper 2, a material loosening assembly 8 being installed in the first hopper 2, and a transmission assembly 9 arranged between the discharging assembly 3 and the belt scale conveyor 4, the transmission assembly 9 being used for controlling the opening and closing of the discharging assembly 3 and matching the conveying speed of the belt scale conveyor 4.

[0045] In the embodiment: by setting the transmission assembly 9, the conveying speed of the belt scale conveyor 4 can be synchronized with the discharging speed of the discharging assembly 3, the speed is dynamically matched to ensure that the powder is measured and conveyed at a constant flow, impact or flow interruption is avoided, the weight signal detected by the weighing sensor truly reflects the material quality, thereby controlling the instantaneous flow error within ±0.1%, and ensuring more accurate quantitative weighing; at the same time, the transmission assembly 9 can also control the opening and closing of the discharging assembly 3, when a certain amount is reached, the discharging assembly 3 can be operated synchronously with the belt scale conveyor 4, the discharging assembly 3 is closed first, and the belt scale conveyor 4 can also completely empty the remaining powder, without affecting subsequent weighing and conveying.

[0046] Secondly, the scheme also cooperates with the material loosening assembly 8 when the spiral conveyor 7 conveys the powder into the first hopper 2, uses the poured powder to hit the material loosening assembly 8, and makes the material loosening assembly 8 to dredge the powder accumulated in the first hopper 2, solves the problem of poor discharging caused by poor flowability, bridging, caking or blocking of the powder in the hopper, and thus guarantees the production continuity and improves the equipment efficiency.

[0047] Please refer to Figures 1-9 , the material loosening assembly 8 includes a fixed frame 801 fixedly connected to the upper end of the inside of the first hopper 2 in a cross-shaped structure, an active rod 802 movably penetrating the middle part of the fixed frame 801, a conical umbrella shed 803 installed on the top of the active rod 802, and a limiting block 804 fixedly connected to the upper end of the active rod 802 near the lower side of the conical umbrella shed 803. A spring 805 is sleeved on the outer wall of the active rod 802, and the spring 805 is located between the limiting block 804 and the fixed frame 801.

[0048] A plurality of guide plates 807 are arranged around the lower end of the outer wall of the active rod 802, the plurality of guide plates 807 are in a right triangle shape structure, the right angle side of the guide plate 807 is integrally formed with the outer wall of the active rod 802, and a plurality of ring 808 are arranged between the plurality of guide plates 807.

[0049] Four guide rods 806 are arranged on the lower end of the outer side of the conical umbrella shed 803, and the lower ends of the four guide rods 806 movably penetrate the four supporting rods of the fixed frame 801; the guide plate 807 is a sheet-shaped right triangle structure with a hollow middle part, and the inclination of the outer side of the guide plate 807 matches the inclination of the lower end of the inner cavity of the first hopper 2.

[0050] In the embodiment: since the position of the first hopper 2 is relatively high, the powder needs to be put into the first hopper 2 through the screw conveyor 7, which can continuously put the powder into the first hopper 2, and the putting operation of the screw conveyor 7 and the weighing and conveying operation of the belt scale conveyor 4 can be synchronized. When the powder flows out of the output end of the screw conveyor 7, the powder will fall onto the conical top umbrella 803, and the conical top umbrella 803 will push the movable rod 802 to descend under the impact of the powder. The spring 805 is forced to reciprocate, thereby driving the movable rod 802 to also move up and down reciprocally. In the process of the movable rod 802 moving up and down reciprocally, the guide sheet 807 and the ring 808 will constantly disturb the powder at the bottom of the first hopper 2, so as to avoid the bridging, caking or blocking of the powder, and ensure that the powder can flow out smoothly, thereby not affecting the smoothness of the discharging of the discharging assembly 3.

[0051] It should be noted that when the screw conveyor 7 is used to convey the powder into the first hopper 2, attention should be paid to the fact that the amount of powder should not exceed the conical top of the first hopper 2, so as to avoid the powder from submerging the upper end of the powder removal assembly 8, thereby failing to drive the powder removal assembly 8 to perform the dredging operation.

[0052] Please refer to Figures 1-9 , the discharging assembly 3 comprises a hopper 301 which is integrally formed with the discharging port of the first hopper 2. The middle inner cavity of the hopper 301 is a circular cavity structure. The middle inner cavity of the hopper 301 is provided with a rotating shaft 302. The two ends of the rotating shaft 302 are respectively rotatably connected to the two side walls of the hopper 301 through bearings. The outer wall of the rotating shaft 302 is annularly arrayed with a plurality of blades 303. The outer side edge of the blade 303 is close to the middle inner cavity wall of the hopper 301.

[0053] In the embodiment: the powder flows into the hopper 301 from the first hopper 2. Since the hopper 301 has the structure of the rotating shaft 302 and the blade 303 combination, the powder can be effectively intercepted from falling. When the powder needs to flow into the belt scale conveyor 4, the rotating shaft 302 can be rotated, and the powder between the adjacent two blades 303 will flow out of the discharging port of the hopper 301 along with the continuous rotation of the rotating shaft 302. This structure can ensure uniform discharging amount and avoid the discharging port from being blocked.

[0054] Please refer to Figures 1-9 , the transmission assembly 9 comprises an outer shell 901. The inner part of the outer shell 901 is provided with a first synchronous pulley 902 and a fixed pulley 903. The first synchronous pulley 902 is fixedly connected to one end of the output shaft of the belt scale conveyor 4. The fixed pulley 903 is fixedly connected to one end of the rotating shaft 302. The outer side of the fixed pulley 903 is provided with a second synchronous pulley 905. The second synchronous pulley 905 and one side of the fixed pulley 903 are rotatably connected through a bearing.

[0055] A plurality of sliding grooves 906 are arranged on the outer end surface of the fixed wheel 903 in a ring array, a first insertion groove 907 is arranged on the bottom end wall of the sliding groove 906 and penetrates the fixed wheel 903, a stop block 908 is slidably connected in the sliding groove 906, a second insertion groove 909 is arranged at one end of the stop block 908, and a plurality of ring array abutting grooves 910 are arranged on the outer diameter end of the second synchronous pulley 905, the inner cavity profile of the abutting groove 910 matches the outer end profile of the stop block 908.

[0056] The transmission assembly 9 further comprises a hydraulic cylinder 911 mounted on the shell 901, a connecting pipe 912 is fixedly connected to the output end of the hydraulic cylinder 911, a fixed block 913 is fixedly connected to the end of the connecting pipe 912 away from the hydraulic cylinder 911, an electromagnet 914 is inlaidly installed on the side end surface of the fixed block 913 away from the connecting pipe 912, an outer ring 915 is rotatably connected to the outside of the fixed block 913 through a bearing, a plurality of insertion rods 916 are arranged in a ring array on one side end surface of the outer ring 915, and the lower ends of the plurality of insertion rods 916 are respectively inserted into the plurality of second insertion grooves 909.

[0057] The insertion rod 916 comprises a first rod area 9161 connected with the outer ring 915, a second rod area 9162 is connected to the lower end of the first rod area 9161, a protruding portion is arranged on the first rod area 9161 towards the side of the electromagnet 914, a protruding portion is arranged on the second rod area 9162 away from the side of the electromagnet 914, when the second rod area 9162 is located in the second insertion groove 909, the protruding portion on the second rod area 9162 pushes the stop block 908 to move outward, so that the outer end of the stop block 908 is inserted into one of the abutting grooves 910; when the first rod area 9161 is located in the second insertion groove 909, the second rod area 9162 is located in the first insertion groove 907, the protruding portion on the first rod area 9161 pushes the stop block 908 to move inward, so that the stop block 908 is completely separated from the abutting groove 910.

[0058] In the embodiment: in order to realize the synchronous movement of the discharging assembly 3 and the belt scale conveyor 4, the hydraulic cylinder 911 drives the insertion rod 916 to move, so that the second rod area 9162 is located in the second insertion slot 909. In this process, the abutting block 908 is abutted by the protruding part of the second rod area 9162, the outer side end of the abutting block 908 is inserted into the butt joint slot 910, at this time, the fixed wheel 903 and the second synchronous pulley 905 are in a connected state, when the second synchronous pulley 905 rotates, the fixed wheel 903 will also rotate synchronously, then the output shaft of the belt scale conveyor 4 drives the first synchronous wheel 902, and the fixed wheel 903 and the second synchronous pulley 905 rotate synchronously under the action of the synchronous belt 904, thereby forcing the rotating shaft 302 and the blade 303 to rotate synchronously. When the conveying speed of the belt scale conveyor 4 changes due to external factors or the belt scale conveyor 4 itself, the discharging speed of the discharging assembly 3 will also change synchronously with the belt scale conveyor 4, so that the conveying speed of the belt scale conveyor 4 and the discharging speed of the discharging assembly 3 can always remain consistent, thereby greatly improving the weighing accuracy of the belt scale conveyor 4.

[0059] When the belt scale conveyor 4 reaches the standard, the hydraulic cylinder 911 drives the insertion rod 916 to move again, until the first rod area 9161 is located in the second insertion slot 909. In this process, the abutting block 908 is abutted by the first rod area 9161, the abutting block 908 is separated from the butt joint slot 910, the limiting connection between the fixed wheel 903 and the second synchronous pulley 905 is released, and the fixed wheel 903 and the second synchronous pulley 905 can only rotate relative to each other (relative rotation between the two is realized through bearings). In addition, when the hydraulic cylinder 911 pushes the insertion rod 916, the electromagnet 914 will also be pushed to approach the rotating shaft 302, and under the action of the magnetic field damping, a good braking effect can be achieved, and combined with the disturbance of the powder in the hopper 301, the rotating shaft 302 can be quickly forced to stop rotating, thereby realizing the closing of the lower opening of the hopper 301, and not affecting the belt scale conveyor 4 to convey the remaining powder out, meeting the requirement of quantitative conveying.

[0060] It should be noted that the electromagnet 914 in the present scheme is a commercially available electromagnet device, and the power supply wire thereof can extend to the outside through the connecting pipe 912 and be connected with the controller. The connecting pipe 912 is a cylindrical structure, and a small hole is formed on the outer side of the connecting pipe 912 for the power supply wire to pass through. The opening and closing of the electromagnet 914 is started according to whether the discharging assembly 3 needs to be closed. When the discharging assembly 3 needs to be stopped, the electromagnet 914 is opened, and under the pushing action of the hydraulic cylinder 911, it continuously approaches the rotating shaft 302, so as to force the rotating shaft 302 to slow down under the action of the continuously increasing electromagnetic damping, until the rotating shaft 302 stops rotating, and then the electromagnet 914 is closed again.

[0061] An automatic weighing conveying process of a powder automatic weighing conveying and feeding equipment for brick making comprises the following steps:

[0062] Step one, automatic weighing; the powder used for brick making is put into the first hopper 2, and then the powder is discharged from the first hopper 2 to the belt scale conveyor 4, the weight change is monitored in real time by the high-precision belt scale conveyor 4, and dynamic weighing is realized by combining the PLC control system;

[0063] Step two, conveying; the conveying function of the belt scale conveyor 4 is used to synchronize the weighing and conveying, the powder is conveyed into the second hopper 5 for temporary storage until the weighing of the powder of a preset quantity is completed;

[0064] Step three, feeding; the electromagnetic switch valve at the lower end of the second hopper 5 is opened, the powder in the second hopper 5 falls onto the feeding conveyor 6, the feeding conveyor 6 conveys and feeds the powder into the mold, and waits for the next process to press and make bricks.

[0065] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An automatic weighing, conveying, and feeding device for brick-making powder, characterized in that, The system includes a base frame (1), on which a first hopper (2) is installed. A feeding assembly (3) is installed at the discharge port of the first hopper (2). The feeding assembly (3) is used to block or open the discharge port of the first hopper (2) to control the amount of powder discharged from the first hopper (2). The system also includes a belt scale conveyor (4), which is installed in the middle of the base frame (1). One end of the belt scale conveyor (4) is located below the feeding assembly (3) and is used to weigh and transport powder. A second hopper (5) is fixedly installed at the bottom of one end of the belt scale conveyor (4). A feeding conveyor (6) is installed at the lower end of the base frame (1). The feeding conveyor (6) is located below the belt scale conveyor (4) and is used to receive the powder weighed by the belt scale conveyor (4) and transport the powder to the next process. A screw conveyor (7) is provided on one side of the base frame (1) for conveying powder into the first hopper (2), and a material feeding assembly (8) is installed in the first hopper (2). A transmission component (9) is provided between the feeding component (3) and the belt scale conveyor (4) for controlling the opening and closing of the feeding component (3) and matching the conveying speed of the belt scale conveyor (4); The feeding assembly (3) includes a hopper (301) integrally formed with the feeding port of the first hopper (2). The inner cavity of the hopper (301) is a circular cavity structure. The inner cavity of the hopper (301) is provided with a rotating shaft (302). The two ends of the rotating shaft (302) are rotatably connected to the two side walls of the hopper (301). The outer wall of the rotating shaft (302) has a ring array of multiple blades (303). The outer side of the blades (303) is close to the inner cavity wall of the hopper (301). The transmission assembly (9) includes a housing (901), inside which a first synchronous pulley (902) and a fixed pulley (903) are provided. The first synchronous pulley (902) is fixedly connected to one end of the output shaft of the belt scale conveyor (4), and the fixed pulley (903) is fixedly connected to one end of the rotating shaft (302). A second synchronous pulley (905) is provided on the outside of the fixed pulley (903), and the second synchronous pulley (905) is rotatably connected to one side of the fixed pulley (903) through a bearing. The outer end face of the fixed wheel (903) is provided with a plurality of sliding grooves (906), which are arranged in a ring array on the outer end face of the fixed wheel (903). The bottom wall of the sliding groove (906) is provided with a first slot (907) that penetrates the fixed wheel (903), and a stop block (908) is slidably connected in the sliding groove (906). A second slot (909) is provided at one end of the stop block (908). The outer inner diameter end of the second synchronous pulley (905) is provided with a plurality of ring array docking grooves (910), and the inner cavity contour of the docking groove (910) matches the outer end contour of the stop block (908). The transmission assembly (9) also includes a hydraulic cylinder (911) mounted on the housing (901). The output end of the hydraulic cylinder (911) is fixedly connected to a connecting pipe (912). A fixing block (913) is fixedly connected to one end of the connecting pipe (912) away from the hydraulic cylinder (911). An electromagnet (914) is embedded on one side of the fixing block (913) away from the connecting pipe (912). An outer ring (915) is rotatably connected to the outside of the fixing block (913) through a bearing. Multiple insertion rods (916) are arranged in a ring on one side of the outer ring (915). The lower ends of the multiple insertion rods (916) are respectively inserted into multiple second slots (909). The insertion rod (916) includes a first rod area (9161) connected to the outer ring (915), and a second rod area (9162) connected to the lower end of the first rod area (9161). The first rod area (9161) has a protrusion facing the electromagnet (914), and the second rod area (9162) has a protrusion facing away from the electromagnet (914). When the second rod area (9162) is located in the second slot (909), the second rod area (9162) The protrusion on the first rod area (9161) pushes the abutment (908) to move outward, so that the outer end of the abutment (908) is inserted into one of the mating grooves (910); when the first rod area (9161) is located in the second slot (909), the second rod area (9162) is located in the first slot (907), and the protrusion on the first rod area (9161) pushes the abutment (908) to move inward, so that the abutment (908) is completely separated from the mating groove (910).

2. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 1, characterized in that, The material feeding assembly (8) includes a fixed frame (801) with a cross-shaped structure fixedly connected to the upper part of the inside of the first hopper (2). A movable rod (802) is movably passed through the middle of the fixed frame (801). A conical umbrella canopy (803) is installed on the top of the movable rod (802). A limiting block (804) is fixedly connected to the upper end of the movable rod (802) near the lower part of the conical umbrella canopy (803). A spring (805) is sleeved on the outer wall of the movable rod (802). The spring (805) is located between the limiting block (804) and the fixed frame (801). The lower outer wall of the movable rod (802) is surrounded by a plurality of guide plates (807). The plurality of guide plates (807) are in the shape of right triangles, and the right-angled side of the guide plate (807) is integrally formed with the outer wall of the movable rod (802). A plurality of rings (808) are arranged at equal intervals between the plurality of guide plates (807).

3. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 2, characterized in that, The lower outer end of the conical canopy (803) has four guide rods (806) arranged in a circular array, and the lower ends of the four guide rods (806) respectively movably pass through the four support rods of the fixed frame (801).

4. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 3, characterized in that, The guide plate (807) is a hollow, right-angled triangular structure, and the inclination of the outer side of the guide plate (807) matches the inclination of the lower end of the inner cavity of the first hopper (2).

5. The automatic weighing and conveying process of an automatic weighing and conveying feeding device for brick-making powder according to any one of claims 1-4, characterized in that, Includes the following steps: Step 1: Automatic weighing; The powder used for brick making is put into the first hopper (2), and then the powder is discharged from the first hopper (2) to the belt scale conveyor (4). The weight change is monitored in real time by the belt scale conveyor (4) with high precision weighing, and dynamic weighing is realized by combining with the PLC control system. Step 2, conveying; using the conveying function of the belt scale conveyor (4), weighing and conveying are carried out simultaneously, and the powder is conveyed to the second hopper (5) for temporary storage until the preset amount of powder weighing is completed; Step 3, feeding: Open the second hopper (5), and the powder in the second hopper (5) falls onto the feeding conveyor (6). The feeding conveyor (6) transports the powder and feeds it into the mold, waiting for the next process to press and make bricks.

Images