Process and equipment for automatically weighing, conveying and feeding powder for brick making

Abstract

The invention discloses a process and equipment for automatically weighing, conveying and feeding powder for brickmaking, and relates to the technical field of quantitative conveying of brickmaking raw materials. The equipment comprises a base frame, a first hopper, a discharging assembly, a belt weigher conveyor, a second hopper, a feeding conveyor, a spiral conveyor, a material scattering assembly and a transmission assembly. Wherein the transmission assembly is connected between the discharging assembly and the belt weigher conveyor and used for enabling the discharging speed and the conveying speed to keep dynamic synchronization and controlling the discharging assembly to be closed firstly after the preset amount is reached, and the belt weigher conveyor continues to discharge remaining materials. The material dredging assembly is arranged in the first hopper, reciprocating vibration is generated through powder impact, and powder bridging and blocking are prevented. According to the invention, precise matching of blanking and conveying is realized, the dynamic weighing precision and the batch control accuracy are obviously improved, the problem of hopper blockage is effectively solved, and the production continuity and the automation level are guaranteed.

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-mentioned 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 port end of the first hopper, the discharging assembly being used to block or open the discharging port 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 being 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; 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; 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.

[0009] As a further scheme of the present application, the discharging assembly comprises a material box integrally formed with the discharging port 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 edge of the blade being close to the middle inner cavity wall of the material box.

[0010] As a further scheme of the present application, the material loosening assembly comprises a fixed frame in a cross-shaped structure fixedly connected to the inner upper end of the first hopper, 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 close to the lower end of the conical umbrella, a spring being sleeved on the outer wall of the active rod, the spring being located between the limiting block and the fixed frame. A plurality of guide plates are arranged around the lower end of the active rod, the guide plates being in a right-angled triangle shape structure, the right-angled edge of the guide plate being integrally formed with the outer wall of the active rod, a plurality of rings being arranged between the guide plates.

[0011] As a further scheme of the present application, four guide rods are annularly arranged on the outer side end of the lower end of the conical umbrella, the lower ends of the four guide rods being movably arranged on the four support rods of the fixed frame.

[0012] As a further scheme of the present application: the guide material sheet is a sheet-shaped right triangle structure with a hollow middle part, and the inclination of the outer side of the guide material sheet matches the inclination of the lower end inner cavity of the first hopper.

[0013] As a 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 outer side of the fixed pulley, and the second synchronous pulley is rotatably connected to one side of the fixed pulley through a bearing. A plurality of sliding grooves are arranged on the outer side end face of the fixed pulley in a ring array, a first insertion slot penetrating through the fixed pulley is arranged 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 arranged at one end of the stop block, and a plurality of ring array butt joints are arranged on the outer side inner diameter end of the second synchronous pulley, and the inner cavity profile of the butt joint matches the outer side end profile of the stop block.

[0014] As a 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 inlaidly mounted on the side end face of the fixed block away from the connecting pipe, an outer ring is rotatably connected to the outer side of the fixed block through a bearing, and a plurality of insertion rods are arranged in a ring array on one side end face of the outer ring.

[0015] As a 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, and 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 side end of the stop block is inserted into one of the butt joints. When the first rod area is located in the second insertion slot, the second rod area is located in the first insertion slot, and 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.

[0016] An automatic weighing and conveying process of a powder automatic weighing and conveying and feeding equipment for brick making, comprising the following steps: Step 1: Automatic weighing; The powder used for brick making is put into the first hopper, and then the powder is discharged from the first hopper onto the belt scale conveyor. The belt scale conveyor with high-precision weighing monitors the weight change in real time, and dynamic weighing is realized by combining it with the PLC control system. Step 2: Conveying; Using the conveying function of the belt scale conveyor, weighing and conveying are carried out simultaneously, and the powder is conveyed to the second hopper for temporary storage until the preset amount of powder is weighed. Step 3: Feeding; Open the second hopper, and the powder in the second hopper falls onto the feeding conveyor. The feeding conveyor transports the powder and puts it into the mold, waiting for the next process to press and make bricks.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. Achieved precise speed matching and coordinated control between material feeding and conveying: This invention, through the incorporation of a mechanically linked and adjustable clutch transmission assembly, enables the material feeding assembly to dynamically and synchronously adjust its feeding speed in real time, following the conveying speed changes of the belt scale conveyor. This structure effectively solves the problems of uneven feeding, material accumulation, or flow interruption caused by conveying speed fluctuations in traditional systems, ensuring uniform distribution of powder on the belt and constant flow rate, thereby significantly improving dynamic weighing accuracy and controlling instantaneous flow error within ±0.1%.

[0018] 2. Equipped with intelligent start / stop and residual material discharge functions in batch metering: The transmission components not only achieve speed synchronization but also automatically switch states when a preset weighing value is reached. This allows the feeding component to shut down first, stopping material feeding, while the belt scale conveyor continues to run until all remaining material on the belt is completely emptied. This mechanism avoids the problems of excess, insufficient, or residual material caused by asynchronous shutdowns in traditional systems, ensuring accurate and consistent weight of each batch of powder and improving production quality and feeding reliability.

[0019] 3. Effectively prevents and alleviates powder blockage problems in the hopper: By installing a self-excited vibration-enabled material feeding component inside the first hopper, the impact force of the screw conveyor driving its reciprocating motion continuously agitates and guides the powder at the bottom of the hopper, preventing blockages and poor material flow caused by powder bridging, clumping, or adhesion. This design improves powder flowability, ensures a continuous and stable feeding process, reduces manual cleaning intervention, and enhances the overall operating efficiency and production continuity of the equipment.

[0020] 4. High structural integration and simplified control logic: This equipment integrates weighing, conveying, feeding control, and anti-clogging / material discharge functions into one unit. It achieves automated operation through mechanical linkage and sensor feedback, reducing reliance on complex external control systems. The system responds quickly and operates in a coordinated manner, improving accuracy while also enhancing the equipment's reliability and maintainability. It is suitable for industrial applications involving the quantitative conveying of powdered and granular materials in brick making and other similar applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation of the screw conveyor of the present invention; Figure 3 This is a schematic diagram of the installation structure of the first hopper, the feeding assembly, the belt scale conveyor, and the transmission assembly of the present invention. Figure 4 This is a schematic diagram of the internal structure of the first hopper of the present invention; Figure 5 This is a schematic diagram of the structure of the material feeding assembly of the present invention; Figure 6 This is a schematic diagram of the transmission component of the present invention; Figure 7 This is a schematic diagram of the transmission assembly of the present invention (after removing the outer casing); Figure 8 This is a schematic diagram of the structure of the fixed wheel and the second synchronous belt pulley of the present invention; Figure 9 This is a schematic diagram of the installation of the insertion rod of the present invention.

[0022] In the diagram: 1. Base frame; 2. First hopper; 3. Feeding assembly; 301. Material box; 302. Rotating shaft; 303. Blade; 4. Belt conveyor; 5. Second hopper; 6. Feeding conveyor; 7. Screw conveyor; 8. Unloading assembly; 801. Fixed frame; 802. Movable rod; 803. Conical canopy; 804. Limit block; 805. Spring; 806. Guide rod; 807. Guide plate; 808. Ring; 9. Transmission assembly ; 901, outer casing; 902, first synchronous pulley; 903, fixed pulley; 904, synchronous belt; 905, second synchronous belt pulley; 906, slide groove; 907, first slot; 908, stop block; 909, second slot; 910, docking 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 Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-9 In this embodiment of the invention, an automatic weighing, conveying, and feeding device for brick-making powder includes a base frame 1. A first hopper 2 is installed on the top of the base frame 1, and a feeding component 3 is installed at the discharge port end of the first hopper 2. The feeding component 3 is used to block or open the discharge port end of the first hopper 2 to control the amount of powder discharged from the first hopper 2. The device also includes a belt scale conveyor 4, which is installed in the middle of the base frame 1, with one end of the belt scale conveyor 4 located below the feeding component 3. It is used to weigh and convey the powder. A second hopper 5 is fixedly installed at the bottom of one end of the belt scale conveyor 4, and an electromagnetic switch valve is provided at the discharge port below the second hopper 5. A feeding conveyor 6 is installed at the lower end of the base frame 1, located below the belt scale conveyor 4. The feeding conveyor 6 is used to receive the powder weighed by the belt scale conveyor 4 and to convey the powder to the next process. A screw conveyor 7 is installed on one side of the base frame 1. The screw conveyor 7 is used to convey powder into the first hopper 2. A material discharge assembly 8 is installed in the first hopper 2. A transmission assembly 9 is installed between the material discharge assembly 3 and the belt scale conveyor 4. The transmission assembly 9 is used to control the opening and closing of the material discharge assembly 3 and to match the conveying speed of the belt scale conveyor 4.

[0025] In this embodiment: by setting the transmission component 9, the transmission speed of the belt scale conveyor 4 can be kept synchronized with the feeding speed of the feeding component 3. Through dynamic speed matching, the powder is ensured to be measured and conveyed at a constant flow rate, avoiding impact or flow interruption, so that 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 component 9 can also independently control the opening and closing of the feeding component 3. When a certain amount is reached, it can break away from synchronous operation with the belt scale conveyor 4, allowing the feeding component 3 to close first and stop feeding material to the conveying end of the belt scale conveyor 4. The belt scale conveyor 4 can also completely empty the remaining powder without affecting subsequent weighing and conveying.

[0026] Secondly, this solution also coordinates the screw conveyor 7 with the unloading component 8 when conveying powder into the first hopper 2. The unloading component 8 is used to guide the powder accumulated in the first hopper 2 by the tipping powder. This solves the problem of poor material discharge caused by poor flowability, bridging, clumping or blockage in the hopper, thereby ensuring production continuity and improving equipment efficiency.

[0027] Please refer to this carefully.Figures 1-9 The material unloading 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 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 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.

[0028] The lower outer wall of the movable rod 802 is surrounded by multiple guide plates 807. The multiple 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. Multiple rings 808 are arranged at equal intervals between the multiple guide plates 807.

[0029] The lower outer end of the cone-shaped canopy 803 has four guide rods 806 arranged in a circular array. The lower ends of the four guide rods 806 are respectively movably inserted through the four support rods of the fixed frame 801. The guide plate 807 is a hollow sheet-shaped right-angled triangle structure, and the inclination of the outer side of the guide plate 807 matches the inclination of the lower inner cavity of the first hopper 2.

[0030] In this embodiment: Since the first hopper 2 is at a relatively high position, the powder needs to be fed into the first hopper 2 through the screw conveyor 7. The powder can be continuously fed into the first hopper 2. The feeding of the screw conveyor 7 and the weighing and conveying operation of the belt scale conveyor 4 can be carried out simultaneously. When the powder flows out from the output end of the screw conveyor 7, the powder will fall onto the conical top canopy 803. The impact of the powder on the conical top canopy 803 will push the movable rod 802 down. The spring 805 will bounce back and forth under force, thereby driving the movable rod 802 to move up and down. During the up and down movement of the movable rod 802, the guide plate 807 and the ring 808 will continuously disturb the powder at the bottom of the first hopper 2 to prevent the powder from bridging, clumping or blocking, and ensure that the powder can flow out smoothly, so as not to affect the smoothness of the feeding component 3.

[0031] It should be noted that when using the screw conveyor 7 to convey powder into the first hopper 2, care should be taken to ensure that the amount of powder does not exceed the conical top of the first hopper 2, so as to avoid the powder submerging the upper part of the unloading component 8, which would prevent the unloading component 8 from being driven to perform unloading operations.

[0032] Please refer to this carefully. Figures 1-9The feeding assembly 3 includes a material box 301 integrally formed with the feeding port of the first hopper 2. The inner cavity of the material box 301 is a circular cavity structure. The inner cavity of the material box 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 material box 301 through bearings. 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 material box 301.

[0033] In this embodiment: the powder flows into the hopper 301 from the first hopper 2. Since the hopper 301 has a structure consisting of a rotating shaft 302 and blades 303, it can effectively intercept the falling powder. When the powder needs to flow into the belt conveyor 4, the rotating shaft 302 can be rotated, and the powder located between two adjacent blades 303 will flow out from the discharge port of the hopper 301 as the rotating shaft 302 rotates continuously. This structure can ensure uniform discharge and also avoid blockage of the discharge port.

[0034] Please refer to this carefully. Figures 1-9 The transmission assembly 9 includes a housing 901. Inside the housing 901, 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. 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. The second synchronous pulley 905 and one side of the fixed pulley 903 are rotatably connected by a bearing.

[0035] Multiple grooves 906 are provided on the outer end face of the fixed wheel 903. The multiple grooves 906 are arranged in a ring array on the outer end face of the fixed wheel 903. A first slot 907 penetrating the fixed wheel 903 is provided on the bottom wall of the groove 906. A stop block 908 is slidably connected in the groove 906. A second slot 909 is provided at one end of the stop block 908. Multiple annularly arranged docking grooves 910 are provided on the outer inner diameter end of the second synchronous pulley 905. The inner cavity contour of the docking groove 910 matches the outer end contour of the stop block 908.

[0036] 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. The end of the connecting pipe 912 away from the hydraulic cylinder 911 is fixedly connected to a fixing block 913. An electromagnet 914 is embedded on the side end face 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 end face of the outer ring 915. The lower ends of the multiple insertion rods 916 are respectively inserted into multiple second slots 909.

[0037] 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 is provided with a protrusion facing the electromagnet 914, and the second rod area 9162 is provided with a protrusion facing away from the electromagnet 914. When the second rod area 9162 is located in the second slot 909, the protrusion on the second rod area 9162 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.

[0038] In this embodiment: In order to achieve synchronous movement between the feeding assembly 3 and the belt scale conveyor 4, the hydraulic cylinder 911 can drive the insertion rod 916 to move, so that the second rod area 9162 is located in the second slot 909. During this process, the abutment block 908 is abutted by the protrusion of the second rod area 9162, pushing the outer end of the abutment block 908 into the docking groove 910. At this time, the fixed wheel 903 and the second synchronous belt pulley 905 are connected. When the second synchronous belt pulley 905 rotates, it will also drive the fixed wheel 903 to rotate synchronously. Then, the output shaft of the belt scale conveyor 4 drives the first synchronous wheel 902, and then the fixed wheel 903 and the second synchronous belt pulley 905 are driven to 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 factors within the belt scale conveyor 4 itself, the feeding speed of the feeding component 3 will also change synchronously with the belt scale conveyor 4, so that the conveying speed of the belt scale conveyor 4 and the feeding speed of the feeding component 3 can always be kept consistent, thereby greatly improving the weighing accuracy of the belt scale conveyor 4.

[0039] When the amount conveyed by the belt scale conveyor 4 is about to reach the target, the hydraulic cylinder 911 can push the insert rod 916 to move again until the first rod area 9161 is located in the second slot 909. During this process, the abutment block 908 is pushed by the first rod area 9161 to separate from the docking groove 910, releasing the limiting connection between the fixed wheel 903 and the second synchronous belt pulley 905. The fixed wheel 903 and the second synchronous belt pulley 905 can only rotate relative to each other (the two rotate relative to each other through the bearing). In addition, while the hydraulic cylinder 911 pushes the insert rod 916, it will also push the electromagnet 914 close to the rotating shaft 302. Under the action of magnetic field damping, it can play a good braking effect. In conjunction with the interference of powder in the material box 301, it can quickly force the rotating shaft 302 to stop rotating, thereby closing the bottom of the material box 301. At the same time, it does not affect the belt scale conveyor 4 from conveying the remaining powder, thus meeting the quantitative conveying requirements.

[0040] It should be noted that the electromagnet 914 in this solution is an existing electromagnet device on the market. Its power supply wire can extend through the connecting tube 912 to the outside and connect to the controller. The connecting tube 912 has a cylindrical structure, and a small hole is opened on the outside of the connecting tube 912 for the power supply wire to pass through. The opening and closing of the electromagnet 914 is activated according to whether the feeding component 3 needs to be closed. When it is necessary to stop the rotation of the feeding component 3, the electromagnet 914 is opened and continuously approaches the rotating shaft 302 under the pushing action of the hydraulic cylinder 911, so as to force the rotating shaft 302 to decelerate under the continuously increasing electromagnetic damping until the rotating shaft 302 stops rotating. Then the electromagnet 914 is closed again.

[0041] An automatic weighing and conveying process for an automatic weighing and conveying feeding device for brick-making powder 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 onto the belt scale conveyor 4. The belt scale conveyor 4 with high-precision weighing monitors the weight change in real time, and dynamic weighing is realized in combination 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 is weighed. Step 3: Feeding; Open the electromagnetic switch valve at the lower end of 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 puts it into the mold, waiting for the next process to press and make bricks.

[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

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).

2. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 1, characterized in that, 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).

3. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 2, 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).

4. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 3, 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).

5. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 4, 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).

6. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 5, characterized in that, 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.

7. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 6, characterized in that, 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).

8. The automatic weighing, conveying, and feeding equipment for brick-making powder according to claim 7, characterized in that, 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).

9. An automatic weighing, conveying, and feeding device for brick-making powder according to claim 8, characterized in that, 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).

10. The automatic weighing and conveying process of an automatic weighing and conveying feeding device for brick-making powder according to any one of claims 1-9, 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.

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