Concrete slab production device added with slab reinforcing agent

Abstract

The invention discloses a concrete plate production device added with a plate reinforcing agent, and relates to the technical field of building material production, the concrete plate production device comprises a supporting mechanism, a moving mechanism, a bench formwork and a material distribution mechanism, and the top end of the supporting mechanism is slidably connected with the moving mechanism for longitudinal movement; a bench formwork used for bearing concrete for plate production is arranged at the bottom end of the supporting mechanism, a distributing mechanism is slidably connected to the top end of the moving mechanism, and a discharging mechanism used for feeding raw materials to the bench formwork is arranged at the bottom end of the distributing mechanism. Meanwhile, the material guide pipe does variable-radius spiral motion along the track of the vortex-shaped groove, and a three-dimensional vortex flow field is formed in combination with three-dimensional stirring of the stirring paddle, so that reinforcing agent particles are diffused in a concrete matrix in a gradient concentration mode (distributed from the core to the periphery in a decreasing mode), and the local enrichment phenomenon is effectively overcome; and meanwhile, the double-screw extruder mechanically crushes the reinforcing agents easy to agglomerate, such as steel fibers, so that initial agglomerates are eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of building material production, and specifically to a concrete slab production device with a slab strengthening agent added thereto. Background Art

[0002] As a key structural material in the construction field, concrete slabs are widely used in prefabricated building floors, wall panels, decorative panels and other fields. With the improvement of the requirements for material properties in building industrialization, by adding slab strengthening agents such as fiber reinforcing agents and polymer modifiers to the concrete matrix, the flexural strength, crack resistance and durability of the slabs can be significantly improved. However, there are still significant technical bottlenecks in the strengthening agent addition and process control of existing production devices:

[0003] 1. Insufficient control over the uniformity of the dispersion of the strengthening agent

[0004] Traditional mixing equipment mostly uses horizontal double-shaft mixers with a fixed rotation speed, which is difficult to adapt to the physical properties of different strengthening agents. For example: steel fibers are prone to agglomeration, resulting in uneven distribution, and polymer emulsions are prone to local enrichment due to viscosity differences.

[0005] 2. Low coupling degree between the addition timing of the strengthening agent and the process

[0006] Existing production lines generally adopt a feeding method of pre-mixing, ignoring the optimal process window for the addition of the strengthening agent. Experiments show that adding cellulose ether-based strengthening agents in the later stage of mixing can improve the bonding effect by 30%, while existing equipment lacks a multi-stage precise feeding mechanism, resulting in a utilization rate of the strengthening agent performance of less than 60%.

[0007] Therefore, how to add a slab strengthening agent to the production equipment and at the same time be able to process the added slab strengthening agent is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0008] To solve the deficiencies mentioned in the above background art, the purpose of the present invention is to provide a concrete slab production device with a slab strengthening agent added thereto.

[0009] The purpose of the present invention can be achieved through the following technical solutions: A concrete slab production device with a slab strengthening agent added thereto, comprising: a support mechanism, including a support frame, a longitudinal guide rail at its top end and a control console at its rear side; a moving mechanism, including a moving frame slidably connected to the top end of the longitudinal guide rail, and a transverse guide rail provided at the top end of the moving frame; a table mold, including a template and a ferry cart connected to the bottom end through a ferry guide rail, and the template is used to carry and transfer concrete slabs; a feeding mechanism, including a hopper wheel slidably connected to the top end of the transverse guide rail, and further including a material receiving hopper and a concrete inlet opened at its top end, the material receiving hopper includes a hopper housing, a guide plate and a solenoid valve provided inside it, and multiple independent feeding mechanisms are integrated inside the material receiving hopper.

[0010] Each of the feeding mechanisms includes: a processing mechanism, including a double-screw extruder and a material guiding pipe, for crushing and conveying the reinforcing agent;

[0011] A guiding mechanism, provided with a spiral groove, drives the material guiding pipe to perform a spiral motion with a variable radius; the material guiding pipe feeds materials dynamically along the spiral groove, and each feeding mechanism independently controls the injection of the reinforcing agent in different time periods.

[0012] Further, the hopper wheels are evenly arranged outside the material receiving hopper.

[0013] Further, the material guiding plate is fixedly connected to the inner side of the hopper housing, and the solenoid valve is fixedly connected to the bottom end of the material guiding plate. The solenoid valve controls the flow between the top end and the bottom end of the material guiding plate.

[0014] Further, all the guiding mechanisms are fixedly connected to the inner side of the hopper housing. The processing mechanism passes through the guiding mechanism and is fixedly connected with a stirring paddle; the stirring paddle is fixed to the bottom end of the central shaft;

[0015] Further, the processing mechanism includes a central shaft. A material receiving cylinder is fixedly connected to the outside of the central shaft. Symmetric double-screw extruders are fixedly connected to both sides of the bottom end of the material receiving cylinder. A corrugated pipe is fixedly connected to the bottom end of each double-screw extruder. A material guiding pipe is fixedly connected to the bottom end of the corrugated pipe. A guiding rod is fixedly connected to the position of the central shaft corresponding to the material guiding pipe at the bottom end. A chute is formed through the top end of the guiding rod. The material guiding pipe is slidably connected to the inner side of the guiding rod through the chute.

[0016] Further, the guiding mechanism includes a guiding plate. The guiding plate is fixedly connected to the inner side of the hopper housing. Two centrally symmetric spiral grooves are formed through the inner side of the guiding plate. The material guiding pipe is slidably connected to the inner side of the guiding plate through the spiral grooves.

[0017] Further, the discharging mechanism includes a fixed baffle. A shaft support is fixedly connected to the outside of the fixed baffle. A transmission support is rotatably connected to the outside of the shaft support. A cylinder is fixedly connected to the top end of the transmission support. The fixed end of the cylinder is rotatably connected to the outside of the fixed baffle. A baffle is fixedly connected to the bottom end of the transmission support. The cylinder controls the transmission support to drive the opening and closing of the baffle.

[0018] Further, staggered crushing teeth are provided on the surface of the screw of the double-screw extruder. The rotational speed of the screw is adjustable from 50 to 300 rpm, and the corrugated pipe is made of a corrosion-resistant flexible material, and an anti-sticking coating is applied to the inner wall.

[0019] Further, the material guiding plate on the inner side of the hopper housing is arranged in an inclined structure, and the solenoid valve is a proportional valve, and the opening degree is adjusted in real time according to the fluidity of the concrete.

[0020] Advantages of the present invention:

[0021] 1. In the present invention, the material guiding pipe moves along a spiral trajectory with a variable radius along the spiral groove, combined with the three-dimensional stirring of the stirring paddle, to form a three-dimensional vortex flow field, enabling the reinforcing agent particles to exhibit a gradient concentration diffusion in the concrete matrix (decreasing distribution from the core to the periphery), effectively overcoming the phenomenon of local enrichment; at the same time, the double-screw extruder mechanically breaks up easily agglomerated reinforcing agents such as steel fibers to eliminate initial agglomerates.

[0022] 2. In the present invention, each feeding mechanism is independently equipped with a processing unit and a motion control system, supporting the staged injection of different reinforcing agents (for example, cellulose ether can be introduced in the later stage of stirring); at the same time, by adjusting the rotation speed of the central shaft and the phase angle of the material guiding pipe, the time sequence and position of the injection of the reinforcing agent can be precisely controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 is a schematic diagram of the support mechanism, mobile bracket and table form structure of the present invention.

[0026] Figure 3 is a schematic diagram of the cloth feeding mechanism and discharging mechanism of the present invention.

[0027] Figure 4 is a cross-sectional view of the internal structure of the cloth feeding mechanism of the present invention.

[0028] Figure 5 is a schematic diagram of the feeding mechanism of the present invention.

[0029] Figure 6 is a cross-sectional view of the internal structure of the feeding mechanism of the present invention.

[0030] In the figure: 1. Support mechanism; 11. Support frame; 12. Longitudinal guide rail; 13. Console; 2. Moving mechanism; 21. Moving frame; 22. Transverse guide rail; 3. Table form; 31. Formwork; 32. Ferry vehicle; 33. Ferry guide rail; 4. Cloth feeding mechanism; 41. Material receiving hopper; 411. Hopper housing; 412. Deflector; 413. Solenoid valve; 42. Hopper wheel; 43. Concrete inlet; 44. Feeding mechanism; 441. Processing mechanism; 4411. Central shaft; 4412. Material receiving cylinder; 4413. Double-screw extruder; 4414. Bellows; 4415. Material guiding pipe; 4416. Guide rod; 4417. Chute; 442. Guiding mechanism; 4421. Guide plate; 4422. Spiral groove; 443. Stirring paddle; 5. Discharging mechanism; 51. Fixed baffle; 52. Shaft support; 53. Transmission support; 54. Cylinder; 55. Baffle plate. DETAILED DESCRIPTION OF THE INVENTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0033] A concrete slab production device for adding a plate strengthening agent, as Figure 1 shown, includes a support mechanism 1, a moving mechanism 2, a table mold 3 and a cloth feeding mechanism 4. The top of the support mechanism 1 is slidably connected with a moving mechanism 2 for longitudinal movement. The bottom of the support mechanism 1 is provided with a table mold 3 for carrying concrete to produce slabs. The top of the moving mechanism 2 is slidably connected with a cloth feeding mechanism 4. The bottom of the cloth feeding mechanism 4 is provided with a discharging mechanism 5 for discharging concrete raw materials to the table mold 3.

[0034] During the production of concrete slabs, the moving mechanism 2 is controlled to move longitudinally on the top of the support mechanism 1 through an external signal, and the cloth feeding mechanism 4 is controlled to move horizontally on the top of the moving mechanism 2. During the movement, the discharging mechanism 5 is controlled to output the concrete raw materials inside the cloth feeding mechanism 4 to the bottom table mold 3, and subsequent process operations such as vibration are coordinated to realize the production of concrete slabs.

[0035] As Figure 2 shown, the support mechanism 1 includes a support frame 11. The top of the support frame 11 is provided with a longitudinal guide rail 12, and a control console 13 is fixedly installed at the rear of the support frame 11.

[0036] The longitudinal movement of the moving mechanism 2 is guided by the longitudinal guide rail 12 at the top of the support frame 11. The control console 13 is used to carry the numerical control equipment in the prior art to control the concrete slab production equipment.

[0037] The moving mechanism 2 includes a moving frame 21. The moving frame 21 is slidably connected to the top of the longitudinal guide rail 12, and the top of the cross beam of the moving frame 21 is provided with a transverse guide rail 22.

[0038] By moving the moving frame 21 on the top of the longitudinal guide rail 12, the transverse guide rail 22 is driven to move, thereby realizing the longitudinal movement of the cloth feeding mechanism 4.

[0039] The table form 3 includes a formwork 31 which is arranged below the support mechanism 1. A ferry truck 32 is fixedly connected to the bottom end of the formwork 31. A ferry guide rail 33 is arranged at the bottom end of the ferry truck 32. The ferry truck 32 drives the formwork 31 to move by means of the ferry guide rail 33, so as to transfer the concrete slab after pouring is completed.

[0040] The formwork 31 is used to carry the concrete raw materials output by the cloth feeding mechanism 4 through the discharging mechanism 5, so as to form a concrete slab on the top end of the formwork 31. Then, the ferry guide rail 33 is used to guide the movement of the ferry truck 32, so that the ferry truck 32 drives the formwork 31 to move, and the next formwork 31 can move to the bottom end of the cloth feeding mechanism 4 for the production of another concrete slab.

[0041] As Figure 3 shown, the cloth feeding mechanism 4 includes a material receiving hopper 41. A hopper wheel 42 is arranged on the outer side of the material receiving hopper 41. A plurality of feeding mechanisms 44 are installed inside the material receiving hopper 41. The hopper wheel 42 is arranged on the top end of the transverse guide rail 22 and is used to control the movement of the material receiving hopper 41 on the top end of the transverse guide rail 22. A concrete inlet 43 is formed at the top end of the material receiving hopper 41.

[0042] The hopper wheel 42 is used to cooperate with the transverse guide rail 22 to control the transverse movement of the whole cloth feeding mechanism 4. The concrete raw materials are introduced into the interior of the material receiving hopper 41 through the concrete inlet 43, and the required plate strengthening agent is added to and mixed with the concrete raw materials by means of the feeding mechanisms 44.

[0043] As Figure 4 shown, the material receiving hopper 41 includes a hopper outer shell 411. An inclined guide plate 412 is fixedly connected to the inner side of the hopper outer shell 411. A solenoid valve 413 is fixedly connected to the bottom end of the guide plate 412. The solenoid valve 413 controls the flow between the top end and the bottom end of the guide plate 412, and the solenoid valve 413 is a proportional valve.

[0044] Feeding and mixing treatment are carried out at the concrete inlet 43. The guide plate 412 bears the concrete raw materials introduced into the interior of the hopper outer shell 411 from the concrete inlet 43. The solenoid valve 413 receives an external signal and introduces the treated concrete raw materials to the bottom end, so as to facilitate subsequent production treatment.

[0045] As Figure 5 shown, each feeding mechanism 44 includes a treatment mechanism 441. A corresponding guiding mechanism 442 is slidably arranged at the bottom end of each treatment mechanism 441. All the guiding mechanisms 442 are fixedly connected to the inner side of the hopper outer shell 411. A stirring paddle 443 is fixedly connected to the treatment mechanism 441 through the guiding mechanism 442.

[0046] The put-in sheet strengthening agent is crushed by the processing mechanism 441 so that the caked sheet strengthening agent can be restored to a powdery state. The stirring paddle 443 is used to mix and stir the concrete at the bottom of the guiding mechanism 442.

[0047] As Figure 6 shown, the processing mechanism 441 includes a central shaft 4411. A material receiving cylinder 4412 is fixedly connected to the outside of the central shaft 4411. Symmetric double-screw extruders 4413 are fixedly connected to both sides of the bottom end of the material receiving cylinder 4412. Interleaved crushing teeth are provided on the screw surface of the double-screw extruder (4413), and the screw speed is adjustable from 50 to 300 rpm.

[0048] A bellows 4414 is fixedly connected to the bottom end of each double-screw extruder 4413, and the bellows (4414) is made of corrosion-resistant flexible material with an anti-sticking coating on the inner wall. A material guiding pipe 4415 is fixedly connected to the bottom end of the bellows 4414. A guiding rod 4416 is fixedly connected to the bottom end of the central shaft 4411 corresponding to the position of the material guiding pipe 4415. A chute 4417 is opened through the top end of the guiding rod 4416. The material guiding pipe 4415 is slidably connected to the inside of the guiding rod 4416 through the chute 4417.

[0049] The material receiving cylinder 4412 is used to carry and store the sheet additive. The sheet additive is output to the bellows 4414 under the action of the double-screw extruder 4413, and is introduced into the material guiding pipe 4415 through the bellows 4414, and finally is introduced into the bottom end of the guiding mechanism 442 through the material guiding pipe 4415.

[0050] The guiding mechanism 442 includes a guiding plate 4421. The guiding plate 4421 is fixedly connected to the inside of the hopper housing 411. Two centrally symmetric spiral grooves 4422 are opened through the inside of the guiding plate 4421. The material guiding pipe 4415 is slidably connected to the inside of the guiding plate 4421 through the spiral grooves 4422.

[0051] The central shaft 4411 drives the material receiving cylinder 4412 and the guiding rod 4416 to rotate synchronously, so as to realize guiding the movement of the material guiding pipe 4415 through the chute 4417 and the spiral grooves 4422 together. During the rotation of the central shaft 4411, the guiding rod 4416 rotates synchronously with the material receiving cylinder 4412. Therefore, the material guiding pipe 4415 moves horizontally relative to the guiding rod 4416. Under the guidance of the spiral grooves 4422, the rotation radius of the material guiding pipe 4415 changes, and the guiding rod 4416 drives the material guiding pipe 4415 to move in cooperation. The sheet strengthening agent processed by the double-screw extruder 4413 is output to the bottom end through the bellows 4414 and the material guiding pipe 4415, and the guidance of the spiral grooves 4422 can make the sheet strengthening agent be put into the concrete raw materials in a larger range. At the same time, during the feeding process, the movement of the material guiding pipe 4415 can also realize the stirring function to a certain extent.

[0052] As shown Figure 3 in the figure, the discharging mechanism 5 includes a fixed baffle 51. A shaft support 52 is fixedly connected to the outside of the fixed baffle 51. A transmission support 53 is rotatably connected to the outside of the shaft support 52. A cylinder 54 is fixedly connected to the top of the transmission support 53. The fixed end of the cylinder 54 is rotatably connected to the outside of the fixed baffle 51. A material retaining plate 55 is fixedly connected to the bottom end of the transmission support 53. The cylinder 54 controls the transmission support 53 to drive the opening and closing of the material retaining plate 55.

[0053] By controlling the cylinder 54 through an external signal, the output end of the cylinder 54 drives the transmission support 53 to move. The transmission support 53 drives the bottom material retaining plate 55 to flip under the restriction of the shaft support 52, realizing the opening of the cloth feeding mechanism 4, so that the concrete raw materials after adding the board strengthening agent can be put into the bottom formwork 31, realizing the production of concrete boards.

[0054] During use, first, the board strengthening agent to be added is put into the material receiving cylinder 4412; then, the concrete raw materials to which the board strengthening agent needs to be added are put into the cloth feeding mechanism 4 through the concrete inlet 43. The concrete raw materials fall on the top of the guide plate 412 after passing through the concrete inlet 43 and accumulate at the bottom end of the guiding mechanism 442. Then, the central shaft 4411 is driven to rotate by an external motor, and the double-screw extruder 4413 is driven to work by an electric signal, so that the board strengthening agent inside the material receiving cylinder 4412 enters the guide pipe 4415 through the corrugated pipe 4414 after being crushed and dispersed by the double-screw extruder 4413. The central shaft 4411 drives the material receiving cylinder 4412 to rotate, thereby driving the guide pipe 4415 to slide inside the chute 4417 through the guide rod 4416. The spiral groove 4422 drives the guide pipe 4415 to perform a spiral motion with a variable radius. At the same time, the board strengthening agent processed by the double-screw extruder 4413 falls into the concrete raw materials at the bottom end of the spiral groove 4422 through the guide pipe 4415. The rotation of the central shaft 4411 can disperse the board strengthening agent inside the guide pipe 4415 into the concrete raw materials. At the same time, the rotation of the stirring paddle 443 can make the concrete raw materials and the board strengthening agent fully mixed, ensuring the feeding effect of the board strengthening agent. After mixing, the cylinder 54 is activated through an external electric signal, and the cylinder 54 drives the transmission support 53, so that the material retaining plate 55 is opened, enabling the internally mixed concrete raw materials to fall and enter the top of the formwork 31. When the concrete raw materials fall, the moving frame 21 is driven to move through an external signal to control the longitudinal movement of the cloth feeding mechanism 4, and the hopper wheel 42 is controlled to move through an external signal to control the transverse movement of the cloth feeding mechanism 4, controlling the pouring and forming of the concrete board.

[0055] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A concrete slab production device with a sheet reinforcing agent added, characterized in that, Comprising: A support mechanism, including a support frame, a longitudinal guide rail at its top end, and a control console at its rear side; A moving mechanism, including a moving frame slidably connected to the top end of the longitudinal guide rail, and a transverse guide rail provided at the top end of the moving frame; A table form, including a formwork and a ferry cart connected to the bottom end through a ferry guide rail, and the formwork is used to carry and transfer concrete slabs; A feeding mechanism, including a hopper wheel slidably connected to the top end of the transverse guide rail, and further including a receiving hopper and a concrete inlet opened at its top end. The receiving hopper includes a hopper housing, a material guiding plate and an electromagnetic valve provided inside it, and multiple independent feeding mechanisms are integrated inside the receiving hopper; Each of the said feeding mechanisms includes: A processing mechanism, including a double-screw extruder and a guiding pipe, for crushing and conveying a reinforcing agent; A guiding mechanism, provided with a spiral groove, driving the guiding pipe to make a spiral motion with a variable radius; The guiding pipe feeds materials dynamically along the spiral groove, and each feeding mechanism independently controls the injection of the reinforcing agent in different time periods.

2. The concrete slab production device for adding a sheet reinforcing agent according to claim 1, characterized in that, The said hopper wheels are evenly arranged outside the receiving hopper.

3. The concrete slab production device for adding a sheet reinforcing agent according to claim 1, characterized in that, The material guiding plate is fixedly connected to the inside of the hopper housing, the electromagnetic valve is fixedly connected to the bottom end of the material guiding plate, and the electromagnetic valve controls the flow at the top and bottom ends of the material guiding plate.

4. The concrete slab production device for adding a slab strengthening agent according to claim 3, characterized in that, All the guiding mechanisms are fixedly connected to the inside of the hopper housing, the processing mechanism penetrates through the guiding mechanism and is fixedly connected with a stirring paddle; the stirring paddle is fixed to the bottom end of the central shaft.

5. The concrete slab production device for adding a sheet reinforcing agent according to claim 1, characterized in that, The processing mechanism includes a central shaft, a receiving cylinder fixedly connected to the outside of the central shaft, two symmetrically arranged double-screw extruders fixedly connected to both sides of the bottom end of the receiving cylinder, a corrugated pipe fixedly connected to the bottom end of each double-screw extruder, a guiding pipe fixedly connected to the bottom end of the corrugated pipe, a guiding rod fixedly connected to the position corresponding to the guiding pipe at the bottom end of the central shaft, a chute is opened through the top end of the guiding rod, and the guiding pipe is slidably connected to the inside of the guiding rod through the chute.

6. The concrete slab production device for adding a slab strengthening agent according to claim 1, characterized in that, The guiding mechanism includes a guiding plate, the guiding plate is fixedly connected to the inside of the hopper housing, two centrally symmetric spiral grooves are opened through the inside of the guiding plate, and the guiding pipe is slidably connected to the inside of the guiding plate through the spiral grooves.

7. A concrete slab production device for adding a sheet reinforcing agent according to claim 1, characterized in that, The discharging mechanism includes a fixed baffle, a shaft support fixedly connected to the outside of the fixed baffle, a transmission support rotatably connected to the outside of the shaft support, a cylinder fixedly connected to the top end of the transmission support, the fixed end of the cylinder is rotatably connected to the outside of the fixed baffle, a baffle is fixedly connected to the bottom end of the transmission support, and the cylinder controls the transmission support to drive the opening and closing of the baffle.

8. The concrete slab production device for adding a sheet reinforcing agent according to claim 5, characterized in that, The screw surface of the double-screw extruder is provided with staggered crushing teeth, the rotation speed of the screw is adjustable from 50 to 300 rpm, and the corrugated pipe is made of a corrosion-resistant flexible material, and the inner wall is coated with an anti-sticking coating.

9. The concrete slab production device for adding a sheet reinforcing agent according to claim 3, characterized in that, The material guiding plate inside the hopper housing is arranged in an inclined structure, and the electromagnetic valve is a proportional valve, and the opening degree is adjusted in real time according to the fluidity of the concrete.

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