A concrete block forming machine

Abstract

The application relates to the technical field of block forming machines, and discloses a concrete block forming machine, which comprises a mixer, a belt conveyor, a concrete block forming machine and a mechanical stacking machine, the mixer, the belt conveyor, the concrete block forming machine and the mechanical stacking machine are sequentially arranged along the material conveying and finished product output direction; the discharge port of the mixer is connected with the feeding end of the belt conveyor; the discharge end of the belt conveyor is connected with the feeding port of the feeding tank of the concrete block forming machine; and the discharge end of the block conveying device of the concrete block forming machine is connected with the feeding end of the mechanical stacking machine, so that a continuous automatic production process is formed, and the manual transfer link is reduced. The concrete block forming machine effectively isolates the interference of high-frequency vibration of the forming machine on the hydraulic system, guarantees the stability and precision of system pressure output, and enables the maintenance and repair of the hydraulic system to be free of disassembly of the main machine structure, so that the maintenance convenience is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of block forming machine technology, specifically a concrete block forming machine. Background Technology

[0002] Concrete block forming machines are mainly used to produce various concrete blocks, paving bricks, embankment blocks and other building products. With the rapid development of the construction industry, the requirements for block production efficiency, finished product quality and equipment automation level are constantly increasing. This type of equipment has been widely used in the industrial production of building materials.

[0003] The existing concrete block molding production lines often employ a decentralized layout for each process, resulting in inefficient connections between processes. This necessitates manual intervention in material handling and finished product transport, easily leading to material accumulation, difficulty in maintaining a stable production rhythm, and altered material conditions due to multiple transfers, impacting subsequent molding quality. The existing molding machine's frame structure layout is also inefficient, with components scattered across different processes, resulting in low space utilization and long strokes between actions, extending the production cycle. While the existing feed hopper has a material distribution function, its anti-bridging effect is unsatisfactory, leading to material arching and clumping during feeding, resulting in uneven material distribution in each mold and defects such as density variations within the molded blocks. Furthermore, the existing hydraulic stations are mostly integrated into the main machine frame. The high-frequency vibrations generated by the molding machine are transmitted to the hydraulic system, affecting the stability and accuracy of the hydraulic system's pressure output. Moreover, hydraulic system malfunctions require disassembly of the main machine structure for maintenance and repair, making the process cumbersome. Existing molding machines mostly adopt a decentralized electrical control method, with many electrical wiring nodes. The coordination and control accuracy between various actuators is not high, and the coordination between vibration and pressurization actions is not precise enough, making it difficult to ensure the compactness of the internal structure of the blocks. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a concrete block molding machine that solves the technical problems of existing hydraulic station integrated installations, which require disassembly of the main unit for maintenance and repair, are cumbersome to operate, and have a decentralized electrical control method, numerous electrical wiring nodes, low precision of coordinated control of various actuators, inaccurate coordination of vibration and pressurization actions, and difficulty in ensuring the density of the internal structure of the blocks.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concrete block molding machine, comprising: a mixer, a belt conveyor, a concrete block molding machine, and a mechanical stacking machine, wherein the mixer, belt conveyor, concrete block molding machine, and mechanical stacking machine are arranged sequentially along the material conveying and finished product output direction; the discharge port of the mixer is connected to the feed end of the belt conveyor, the discharge end of the belt conveyor is connected to the feed box inlet of the concrete block molding machine, and the discharge end of the block conveying device of the concrete block molding machine is connected to the feed end of the mechanical stacking machine, forming a continuous automated production process and reducing manual transfer links; The concrete block molding machine includes a frame that serves as the overall load-bearing foundation, ensuring structural stability during operation and reducing displacement and deformation caused by vibration. From bottom to top, the frame is equipped with a vibration table, which rearranges the concrete particles within the mold box through vibration, expelling air and improving block density; a feeding device, providing support for block molding and ensuring smooth demolding and transport of the molded blocks; a mold box assembly, used to define the shape and size of the blocks; and a pressure head block, which, through pressure combined with vibration, achieves rapid material molding. A material placing trolley drive system and a feeding box are installed in the middle section of the frame. An arch-breaking device is installed at the bottom of the feeding box to solve the problem of lightweight aggregate easily arching and clumping, ensuring that the material falls evenly into the mold box. A hydraulic station is independently installed on one side of the frame to reduce the impact of hydraulic system vibration on molding accuracy and facilitate maintenance and repair of the hydraulic system. An electrical control cabinet is fixedly installed on the frame. The control cabinet is electrically connected to the hydraulic station, arch-breaking device, vibrating table, concrete placing vehicle drive system, plate feeding device, and block conveying device. The concrete block forming machine also includes a sensor group, a demolding auxiliary mechanism, a lubrication system, and a safety guard to prevent operators from contacting moving parts and ensure production safety. The sensor group is connected to the input module of the control cabinet, the demolding auxiliary mechanism is installed below the mold box group, the lubrication system is set for each moving pair of the equipment, and the safety guard covers the vibrating table and the outside of the pulley. The control cabinet includes a PLC, a text screen, and relays. The PLC is used as the core control unit to perform bus-type control of the hydraulic valve group, vibrating motor, and arch-breaking motor, realizing electromechanical-hydraulic integration, achieving coordinated action of various components, improving control accuracy and response speed, and reducing failure rate. The equipment is equipped with both manual and automatic control modes to meet the needs of different working conditions such as debugging, maintenance, and mass production, and is flexible and convenient to operate.

[0006] Preferably, the arch-breaking device includes an arch-breaking motor and an arch-breaking shaft. The two ends of the arch-breaking shaft are fixed to the side plate of the feeding box by bearings with seats. The arch-breaking motor drives the arch-breaking shaft with staggered blades through a sprocket to continuously cut the agglomerated material during the feeding process. It can effectively break up materials with different particle sizes and moisture content, improve the uniformity of material distribution, and thus improve the overall quality of the blocks. The material distribution trolley drive system includes a material distribution cylinder and two parallel material distribution guide rails. The material distribution guide rails are fixed to the middle section of the frame by bolts. The feeding box is installed on the material distribution guide rails and is driven by the material distribution cylinder to move back and forth to the top of the mold box assembly, ensuring that the material distribution box moves smoothly and is accurately positioned, ensuring that the material falls accurately into the mold box.

[0007] Preferably, the vibration table includes two vibration motors and damping springs. The vibration table plate is installed at the bottom of the frame via damping rubber pads and helical springs, effectively isolating vibration transmission between the vibration table and the frame, reducing vibration fatigue of the frame, and extending the service life of the equipment. The two vibration motors are symmetrically fixed under the vibration table plate to ensure uniform vibration of the table surface and avoid uneven density of the blocks. The PLC of the electrical control cabinet outputs PWM signals to control the start and stop of the vibration motors. The operator sets the vibration time through the text screen. The pre-vibration time is infinitely adjustable and can adjust the pre-vibration parameters according to the moisture content and formula of different materials to avoid poor block density caused by over-vibration or under-vibration, and adapt to materials with different moisture contents.

[0008] Preferably, the PLC in the electrical control cabinet collects vibration frequency and time parameters through an analog module, and the parameters can be modified online via a text screen. Production parameters can be adjusted without stopping the machine, improving production efficiency and facilitating the switching between different products. The PLC program includes multiple mode selection, automatically completing the entire process of feeding, pressing, and brick output. Different operating modes can be selected according to production needs to adapt to the production requirements of various specifications of products. The sensor group includes proximity switches, pressure relays, and limit switches. The PLC program has built-in interlocking logic, which interlocks the proximity switch signals at each extreme position to prevent damage to the machinery due to malfunctions. This effectively avoids damage to components such as molds and cylinders caused by misoperation, reducing the equipment failure rate. The interlocking logic includes: when the feed box is not in the correct position, the up / down operation buttons of the mold box group and the down operation buttons of the pressing head block are ineffective; when the mold box group is not in the correct position, the feed box forward / backward buttons are ineffective; when the pressing head block is not in the correct position, the feed box forward / backward buttons are ineffective; when the mold box group rises to the middle position, the feed box forward / backward buttons are ineffective; when the mold box group is not in the correct position, the push plate forward button is ineffective; when the feed box is not in the correct position, the hopper gate switch button is ineffective.

[0009] Preferably, the hydraulic station's oil circuit adopts an integrated design, with all hydraulic valves, including relief valves, pressure reducing valves, and speed regulating valves, integrated into the same valve block. This reduces the number of pipe joints, lowers the probability of oil leakage, simplifies hydraulic system maintenance, and significantly reduces the risk of oil leakage. The hydraulic station is fixed to one side of the frame by vibration damping pads and connected to the integrated block via high-pressure oil pipes. The integrated block is then connected to the material placing cylinder, mold box lifting cylinder, plate feeding cylinder, and pressure head cylinder via oil pipes.

[0010] Preferably, the mold box assembly is connected to the machine frame column through four sets of mold box guide sleeves, and is driven by the mold box lifting cylinder to slide up and down along the machine frame column, ensuring the verticality and stability of the mold box during the lifting process and avoiding block size deviation caused by mold box offset; the pressure head block is located directly above the mold box assembly, connected to the machine frame beam through guide columns, and is driven by the pressure head cylinder to move up and down, ensuring the coaxiality and pressure uniformity when the pressure head is pressed down, and improving the block forming quality.

[0011] Preferably, the plate feeding device consists of a plate feeding cylinder, a pusher frame, and a one-way speed regulating valve, and is installed on the front side of the frame. It pushes the support plate into the mold box through a chain, and the plate feeding speed can be adjusted to avoid impact on the previous pallet and block during plate feeding. The block conveying device is a chain conveyor, installed on the outlet side of the frame, driven by a geared motor through a geared motor chain. The support plate is placed on the chain, which can smoothly convey the formed blocks and ensure that the blocks are not damaged during the conveying process.

[0012] Preferably, the bottom of the frame is welded with pre-embedded iron to improve the installation stability of the whole machine and reduce shaking during operation. Furthermore, the frame is provided with reinforcing ribs on the outside to enhance the structural strength and rigidity of the frame and improve its load-bearing capacity and resistance to deformation.

[0013] Preferably, the demolding auxiliary mechanism includes a push rod and a synchronous connecting rod to ensure that the block is subjected to uniform force when the mold box rises, and to avoid problems such as damage and deformation of the block due to uneven demolding force; the lubrication system includes a centralized lubrication pump and a distributor, which can add lubricating oil to each moving part, reduce component wear, extend the service life of the equipment, and reduce maintenance costs.

[0014] Preferably, the PLC input terminals of the electrical control cabinet are electrically connected to the plate feeding position proximity switch, the material box retraction position proximity switch, the pressure head position proximity switch, the mold box retraction position proximity switch, and the platform retraction position proximity switch, respectively; the PLC output terminals are electrically connected to the plate feeding solenoid valve, the material feeding solenoid valve, the pressure head descent solenoid valve, the mold box rise solenoid valve, the pressure head rise solenoid valve, the arch breaking motor contactor, the vibration motor contactor, and the block conveying device motor contactor, respectively; the PLC has a built-in automatic cycle control module, which controls the plate feeding cylinder, the material feeding cylinder, the pressure head cylinder, the mold box lifting cylinder, the arch breaking motor, the vibration motor, and the block conveying device motor to operate in a preset sequence according to the trigger signals of each proximity switch, thereby realizing the full automation of the production process, improving production efficiency, eliminating the need for frequent intervention by operators, and significantly reducing labor intensity; the PLC also has a built-in alarm shutdown module, which cuts off the power supply to all actuators when any proximity switch fails to trigger within a preset time, promptly detecting equipment malfunctions, preventing the malfunctions from escalating, and ensuring the safety of the equipment and operators.

[0015] Compared with the prior art, the present invention provides a concrete block forming machine, which has the following beneficial effects: This concrete block molding machine achieves seamless integration of the entire process from material mixing to finished product stacking through a linear series layout of equipment in each process stage. This avoids material accumulation and secondary transfer in intermediate stages, ensuring the continuity of production rhythm and the consistency of material state. The vertically layered frame structure arranges the vibration, feeding, molding, and pressing processes sequentially along the vertical direction, optimizing equipment space utilization and making the connection between each action stage more compact, reducing unnecessary movement strokes. An integrated anti-bridging device at the bottom of the feeding box can break up clumps in real time before the material enters the mold box, ensuring uniform material distribution in each mold from the source and eliminating internal defects in the blocks caused by uneven material distribution. The independent external design of the hydraulic station effectively isolates the high-frequency vibration of the molding machine from interference with the hydraulic system, ensuring the stability and accuracy of the system pressure output, and also allows for maintenance and repair of the hydraulic system without disassembling the main structure, greatly improving maintenance convenience.

[0016] Utilizing PLC bus-based electromechanical-hydraulic integrated control reduces electrical wiring nodes and enables real-time coordinated control of various actuators, resulting in more precise coordination of vibration and pressurization actions and improved density of the block's internal structure. Based on multi-position sensor interlocking logic, a closed-loop safety system is constructed for the entire process, fundamentally avoiding action conflicts between different components, effectively protecting precision parts such as molds, and extending the service life of core components. A synchronous linkage-type demolding auxiliary mechanism ensures uniform force distribution during block demolding, preventing finished product damage caused by localized stress concentration, especially improving the molding pass rate of irregularly shaped blocks. A centralized lubrication system enables precise oil supply to all moving parts, avoiding uneven and incomplete manual lubrication and ensuring stable long-term operation. A fully enclosed safety guard effectively prevents dust from entering moving parts while ensuring operator safety, reducing dust wear and decreasing the frequency of equipment cleaning and replacement of vulnerable parts. Dual-mode control with manual and automatic operation and safety interlocks caters to both the automation needs of mass production and the operational flexibility and safety of debugging and maintenance. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention; Figure 2 This is a schematic diagram of the left side of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the hydraulic principle of the present invention; Figure 5 This is a diagram showing the installation basis of the present invention.

[0018] In the diagram: 1. Mechanical block press; 11. Concrete block forming machine; 12. Belt conveyor; 2. Block conveying device; 21. Gear motor chain; 22. Electrical control cabinet; 23. Hydraulic station; 24. Gear motor; 25. Oil pipe; 26. Integrated block; 27. High-pressure oil pipe; 3. Plate feeding device; 31. Frame; 32. Arch breaking shaft; 33. Material placing cylinder; 34. Bearing with seat; 35. Mold box lifting cylinder. 36. Feeding cylinder; 37. Arch breaking motor; 38. Push plate frame; 39. Frame column; 4. Support plate; 41. Safety guard; 42. Vibration motor; 43. Shock-absorbing rubber pad; 44. Vibration table; 45. Press head block; 46. Guide column; 47. Frame crossbeam; 48. Cloth box guide rail; 49. Press head cylinder; 410. Mold box guide sleeve; 5. Mixer; 6. Mold box assembly; 61. Feed box. Detailed Implementation

[0019] This invention provides a technical solution; please refer to [link / reference]. Figure 1-5A concrete block forming machine includes: a mixer 5, a belt conveyor 12, a concrete block forming machine 11, and a mechanical stacking machine 1. The mixer 5, belt conveyor 12, concrete block forming machine 11, and mechanical stacking machine 1 are arranged sequentially along the material conveying and finished product output direction. The discharge port of the mixer 5 is connected to the feed end of the belt conveyor 12, the discharge end of the belt conveyor 12 is connected to the feed inlet of the feed box 61 of the concrete block forming machine 11, and the discharge end of the block conveying device 2 of the concrete block forming machine 11 is connected to the feed end of the mechanical stacking machine 1, forming a continuous automated production process and reducing manual transfer links. The concrete block forming machine 11 includes a frame 31 as the overall load-bearing foundation, ensuring the structural stability of the machine during operation and reducing displacement and deformation caused by vibration. From bottom to top, the frame 31 is equipped with a vibration table 44, which rearranges the concrete material particles in the mold box through vibration, expelling air and improving the block density; a feeding plate device 3, which provides a supporting carrier for block forming, ensuring smooth demolding and conveying of the formed blocks; a mold box assembly 6, used to define the shape and size of the blocks; and a pressure head block 45, which achieves rapid material forming through pressure combined with vibration. A material placing trolley drive system and a feeding box 61 are installed in the middle section of the frame 31. An arch-breaking device is installed at the bottom of the feeding box 61 to solve the problem of lightweight aggregate easily arching and clumping, ensuring that the material falls evenly into the mold box. A hydraulic station 23 is independently set on one side of the frame 31 to reduce the impact of hydraulic system vibration on forming accuracy and facilitate the maintenance and repair of the hydraulic system. An electrical control cabinet 22 is fixedly installed on the frame 31. 22 is electrically connected to the hydraulic station 23, the arch-breaking device, the vibrating table 44, the concrete placing vehicle drive system, the plate feeding device 3, and the block conveying device 2, respectively. The concrete block forming machine 11 also includes a sensor group, a demolding auxiliary mechanism, a lubrication system, and a safety guard 41 to prevent operators from contacting moving parts and ensure production safety. The sensor group is connected to the input module of the electrical control cabinet 22. The demolding auxiliary mechanism is installed below the mold box group 6. The lubrication system is set according to each moving pair of the equipment. The safety guard 41 covers the vibrating table 44 and the outside of the pulley. The electrical control cabinet 22 includes a PLC, a text screen, and relays. The PLC is used as the core control unit to perform bus-type control of the hydraulic valve group, the vibrating motor 42, and the arch-breaking motor 37, realizing electromechanical-hydraulic integration, realizing the coordinated action of each component, improving control accuracy and response speed, and reducing the failure rate. The equipment is equipped with both manual and automatic control modes to meet the needs of different working conditions such as debugging, maintenance, and mass production. The operation is flexible and convenient.

[0020] The arch-breaking device includes an arch-breaking motor 37 and an arch-breaking shaft 32. The two ends of the arch-breaking shaft 32 are fixed to the side plate of the feeding box 61 by bearings 34 with seats. The arch-breaking motor 37 drives the arch-breaking shaft 32 with staggered blades through a sprocket to continuously cut the agglomerated material during the feeding process. It can effectively break the arches of materials with different particle sizes and moisture content, improve the uniformity of material distribution, and thus improve the overall quality of the blocks. The material distribution trolley drive system includes a material distribution cylinder 33 and two parallel material distribution guide rails 48. The material distribution guide rails 48 are fixed to the middle section of the frame 31 by bolts. The feeding box 61 is installed on the material distribution guide rails 48 and is driven by the material distribution cylinder 33 to move back and forth to the top of the mold box group 6, ensuring that the material distribution box moves smoothly and is accurately positioned, and ensuring that the material falls accurately into the mold box.

[0021] The vibration table 44 includes two vibration motors 42 and damping springs. The table plate of the vibration table 44 is installed at the bottom of the frame 31 through damping rubber pads 43 and helical springs, which effectively isolates the vibration transmission between the vibration table and the frame, reduces vibration fatigue of the frame, and extends the service life of the equipment. The two vibration motors 42 are symmetrically fixed under the table plate of the vibration table 44 to ensure uniform vibration of the table surface and avoid uneven density of the blocks. The PLC output PWM signal of the electrical control cabinet 22 controls the start and stop of the vibration motors 42. The operator sets the vibration time through the text screen. The pre-vibration time is infinitely adjustable and can adjust the pre-vibration parameters according to the moisture content and formula of different materials to avoid poor block density caused by over-vibration or under-vibration, and adapt to materials with different moisture contents.

[0022] The PLC in control cabinet 22 collects vibration frequency and time parameters via analog modules, and allows for online parameter modification via a text screen. Production parameters can be adjusted without stopping the machine, improving production efficiency and facilitating switching between different product production processes. The PLC program includes multiple mode selection, automatically completing the entire process of board feeding, pressing, and brick output. Different operating modes can be selected according to production needs, adapting to the production requirements of various specifications of products. The sensor group includes proximity switches, pressure relays, and limit switches. The PLC program has built-in interlocking logic, using proximity switch signals at each extreme position to interlock and prevent malfunctions and damage. The mechanical system effectively prevents damage to components such as molds and cylinders due to misoperation, reducing equipment failure rates. The interlocking logic includes: when the feed box 61 is not retracted to its proper position, the up / down operation buttons for the mold box assembly 6 and the down operation buttons for the pressure head block 45 are ineffective; when the mold box assembly 6 is not retracted to its proper position, the forward / backward buttons for the feed box 61 are ineffective; when the pressure head block 45 is not retracted to its proper position, the forward / backward buttons for the feed box 61 are ineffective; when the mold box assembly 6 rises to the middle position, the forward / backward buttons for the feed box 61 are ineffective; when the mold box assembly 6 is not retracted to its proper position, the push plate advance button is ineffective; when the feed box 61 is not retracted to its proper position, the hopper gate switch button is ineffective.

[0023] The hydraulic station 23 adopts an integrated design for its oil circuit. All hydraulic valves, including relief valves, pressure reducing valves, and speed regulating valves, are integrated into the same valve block, reducing the number of pipe joints, lowering the probability of oil leakage, simplifying the maintenance of the hydraulic system, and significantly reducing the risk of oil leakage. The hydraulic station 23 is fixed to one side of the frame 31 by a vibration damping pad and is connected to the integrated block 26 through a high-pressure oil pipe 27. The integrated block 26 is then connected to the material placing cylinder 33, the mold box lifting cylinder 35, the plate feeding cylinder 36, and the pressure head cylinder 49 through an oil pipe 25.

[0024] The mold box assembly 6 is connected to the frame column 39 via four sets of mold box guide sleeves 410. Driven by the mold box lifting cylinder 35, it slides up and down along the frame column 39 to ensure the verticality and stability of the mold box during lifting and lowering, and to avoid block size deviation caused by mold box offset. The pressing head block 45 is located directly above the mold box assembly 6 and is connected to the frame beam 47 via guide column 46. Driven by the pressing head cylinder 49, it moves up and down to ensure the coaxiality and pressure uniformity when the pressing head is pressed down, thereby improving the block forming quality.

[0025] The plate feeding device 3 consists of a plate feeding cylinder 36, a pusher frame 38, and a one-way speed regulating valve. It is installed on the front side of the frame 31 and pushes the support plate 4 into the mold box through a chain. The plate feeding speed can be adjusted to avoid impact on the previous pallet and block during plate feeding. The block conveying device 2 is a chain conveyor installed on the outlet side of the frame 31. It is driven by a geared motor 24 through a geared motor chain 21. The support plate 4 is placed on the chain, which can smoothly convey the formed blocks and ensure that the blocks are not damaged during the conveying process.

[0026] The bottom of the frame 31 is welded with pre-embedded iron to improve the installation stability of the whole machine and reduce shaking during operation. In addition, the frame 31 is equipped with reinforcing ribs on the outside to enhance the structural strength and rigidity of the frame and improve the load-bearing capacity and deformation resistance of the frame.

[0027] The demolding auxiliary mechanism includes ejector rods and synchronous connecting rods to ensure that the blocks are subjected to uniform force when the mold box rises, avoiding problems such as damage and deformation of the blocks due to uneven demolding force; the lubrication system includes a centralized lubrication pump and distributor, which can add lubricating oil to each moving part, reduce component wear, extend equipment service life, and reduce maintenance costs.

[0028] The PLC input terminals of the electrical control cabinet 22 are electrically connected to the following proximity switches: plate feeding position proximity switch, material box retraction position proximity switch, pressure head position proximity switch, mold box retraction position proximity switch, and table retraction position proximity switch. The PLC output terminals are electrically connected to the following solenoid valves: plate feeding solenoid valve, material distribution solenoid valve, pressure head descent solenoid valve, mold box rise solenoid valve, pressure head rise solenoid valve, arch breaking motor contactor 37, vibration motor contactor 42, and block conveying device 2 motor contactor. The PLC has a built-in automatic cycle control module that controls the feeding sequentially according to the trigger signals of each proximity switch. The hydraulic cylinders 36, 33, 49, 35, 37, 42, and 2 (block conveying devices) operate in a preset sequence to achieve full automation of the production process, improve production efficiency, and reduce labor intensity by eliminating the need for frequent operator intervention. The PLC also has a built-in alarm and shutdown module. When any proximity switch fails to trigger within a preset time, the alarm and shutdown module cuts off the power to all actuators, promptly detects equipment malfunctions, prevents the malfunctions from escalating, and ensures the safety of the equipment and operators.

Claims

1. A concrete block forming machine, comprising: A mixer (5), a belt conveyor (12), a concrete block forming machine (11), and a mechanical stacking machine (1) are characterized in that the mixer (5), the belt conveyor (12), the concrete block forming machine (11), and the mechanical stacking machine (1) are arranged sequentially along the material conveying and finished product output direction; the discharge port of the mixer (5) is connected to the feed end of the belt conveyor (12), the discharge end of the belt conveyor (12) is connected to the feed inlet of the feed box (61) of the concrete block forming machine (11), and the discharge end of the block conveying device (2) of the concrete block forming machine (11) is connected to the feed end of the mechanical stacking machine (1); The concrete block forming machine (11) includes a frame (31) as the overall load-bearing foundation. From bottom to top, the frame (31) is equipped with a vibrating table (44), a feeding device (3), a mold box assembly (6), and a pressure head block (45). A material placing vehicle drive system and a feeding box (61) are installed in the middle section of the frame (31). An arch-breaking device is installed at the bottom of the feeding box (61). A hydraulic station (23) is independently installed on one side of the frame (31). An electrical control cabinet (22) is fixedly installed on the frame (31). The electrical control cabinet (22) is connected to the hydraulic station (23), the arch-breaking device, the vibrating table (44), the material placing vehicle drive system, the feeding device (3), and the block conveying device (45). 2) Electrical connection; The concrete block molding machine (11) also includes a sensor group, a demolding auxiliary mechanism, a lubrication system and a safety guard (41); The sensor group is connected to the input module of the electrical control cabinet (22), the demolding auxiliary mechanism is installed below the mold box group (6), the lubrication system is set for each moving pair of the equipment, and the safety guard (41) covers the vibration table (44) and the outside of the pulley; The electrical control cabinet (22) includes a PLC, a text screen and a relay. The PLC is used as the core control unit to perform bus control on the hydraulic valve group, the vibration motor (42) and the arch breaking motor (37) to realize the integration of electromechanical hydraulic system. The equipment is equipped with two control modes: manual and automatic.

2. The concrete block forming machine according to claim 1, characterized in that: The arch-breaking device includes an arch-breaking motor (37) and an arch-breaking shaft (32). The two ends of the arch-breaking shaft (32) are fixed to the side plate of the feed box (61) by bearings (34). The arch-breaking motor (37) drives the arch-breaking shaft (32) with staggered blades through a sprocket to continuously cut the clump material during the feeding process. The material feeding trolley drive system includes a material feeding cylinder (33) and two parallel material feeding guide rails (48). The material feeding guide rails (48) are fixed to the middle section of the frame (31) by bolts. The feed box (61) is installed on the material feeding guide rails (48) and is driven by the material feeding cylinder (33) to move back and forth above the mold box group (6).

3. A concrete block forming machine according to claim 1, characterized in that: The vibration table (44) includes two vibration motors (42) and damping springs. The table plate of the vibration table (44) is installed at the bottom of the frame (31) through damping rubber pads (43) and helical springs. The two vibration motors (42) are symmetrically fixed below the table plate of the vibration table (44). The PLC of the electrical control cabinet (22) outputs PWM signals to control the start and stop of the vibration motors (42). The operator sets the vibration time through the text screen. The pre-vibration time is infinitely adjustable to adapt to materials with different moisture contents.

4. A concrete block forming machine according to claim 1, characterized in that: The PLC of the electrical control cabinet (22) collects vibration frequency and time parameters through analog modules, and the parameters can be modified online through the text screen. The PLC program includes multiple mode selection and automatically completes the entire process of feeding, pressing and brick output. The sensor group includes proximity switches, pressure relays and limit switches. The PLC program has built-in interlocking logic, which is interlocked by the proximity switch signals at each extreme position to prevent malfunction and damage to the machinery. The interlocking logic includes: when the feed box (61) is not back in place, the up / down operation buttons of the mold box group (6) and the down operation buttons of the pressing head block (45) are not working; when the mold box group (6) is not back in place, the forward / backward buttons of the feed box (61) are not working; when the pressing head block (45) is not back in place, the forward / backward buttons of the feed box (61) are not working; when the mold box group (6) rises to the middle position, the forward / backward buttons of the feed box (61) are not working; when the mold box group (6) is not back in place, the push plate forward button is not working; when the feed box (61) is not back in place, the hopper gate switch button is not working.

5. A concrete block forming machine according to claim 1, characterized in that: The hydraulic station (23) adopts an integrated design for its oil circuit. All hydraulic valves, including relief valve, pressure reducing valve and speed regulating valve, are integrated into the same valve block. The hydraulic station (23) is fixed to one side of the frame (31) by a vibration damping pad and connected to the integrated block (26) through a high-pressure oil pipe (27). The integrated block (26) is connected to the material feeding cylinder (33), the mold box lifting cylinder (35), the plate feeding cylinder (36) and the pressure head cylinder (49) through an oil pipe (25).

6. A concrete block forming machine according to claim 1, characterized in that: The mold box assembly (6) is connected to the frame column (39) through four sets of mold box guide sleeves (410) and is driven by the mold box lifting cylinder (35) to slide up and down along the frame column (39); the pressure head block (45) is located directly above the mold box assembly (6) and is connected to the frame beam (47) through the guide column (46) and is driven by the pressure head cylinder (49) to move up and down.

7. A concrete block forming machine according to claim 1, characterized in that: The plate feeding device (3) consists of a plate feeding cylinder (36), a plate pusher (38) and a one-way speed control valve. It is installed on the front side of the frame (31) and pushes the support plate (4) into the mold box through the chain. The block conveying device (2) is a chain conveyor, which is installed on the outlet side of the frame (31). It is driven by a geared motor (24) through a geared motor chain (21). The support plate (4) is placed on the chain.

8. A concrete block forming machine according to claim 1, characterized in that: The bottom of the frame (31) is welded with pre-embedded iron, and the outside of the frame (31) is provided with reinforcing ribs.

9. A concrete block forming machine according to claim 1, characterized in that: The demolding auxiliary mechanism includes an ejector rod and a synchronizing link; the lubrication system includes a centralized lubrication pump and a distributor.

10. A concrete block forming machine according to claim 1, characterized in that: The PLC input terminals of the electrical control cabinet (22) are respectively connected to the plate feeding position proximity switch, the material box retraction position proximity switch, the pressure head position proximity switch, the mold box retraction position proximity switch, and the platform retraction position proximity switch; the PLC output terminals are respectively connected to the plate feeding solenoid valve, the material feeding solenoid valve, the pressure head descent solenoid valve, the mold box rise solenoid valve, the pressure head rise solenoid valve, the arch breaking motor (37) contactor, the vibration motor (42) contactor, and the block conveying device (2) motor contactor; the PLC has an automatic cycle control module built in, which controls the plate feeding cylinder (36), the material feeding cylinder (33), the pressure head cylinder (49), the mold box lifting cylinder (35), the arch breaking motor (37), the vibration motor (42), and the block conveying device (2) motor to operate in a preset sequence according to the trigger signals of each proximity switch; the PLC also has an alarm stop module built in, which cuts off the power supply of all actuators when any proximity switch is not triggered within a preset time.

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