Pervious concrete test block vibration compression molding device

Abstract

The utility model discloses a pervious concrete test block vibration pressing forming device which comprises a hopper, a stirring machine, a discharging channel, a feeding conveying belt, a mold, a vibration compaction platform, a pressure applying mechanism, a pressing plate and a discharging conveying belt, and auxiliary pushing assemblies are further arranged on the two sides, parallel to the mold conveying direction, of the vibration compaction platform. The auxiliary pushing assembly is used for transferring the mold among the feeding conveying belt, the jolt ramming platform and the discharging conveying belt. According to the device, concrete test blocks are manufactured in an assembly line mode, the production efficiency is high, the consistency of the test blocks produced in batches is good, and the labor intensity of workers can be greatly relieved; and vibration compaction and compaction are combined, so that the distance between aggregate particles can be effectively reduced, and a uniform and compact multi-pore structure is formed, so that the water permeability and compressive strength of the manufactured pervious concrete test block are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete test block production, in particular to a vibration-compression molding device for a permeable concrete test block. Background Art

[0002] Permeable concrete is a type of concrete that does not contain fine aggregate (sand). It is made by mixing cement, coarse aggregate and water in a certain proportion. The coarse aggregate can be crushed stone, pebbles or artificial lightweight aggregate, which makes the permeable concrete have a certain porosity. When it is made into concrete pavements, slope protection and their products, it has the effects of drainage, anti-slip, sound absorption, noise reduction and water seepage.

[0003] Existing permeable concrete test blocks are mostly made by tamping or vibration molding. These molding methods have the advantages of simple operation steps and a wide range of applications, but they also have disadvantages such as inability to produce continuously or automatically, and vibration alone cannot well obtain uniform and compact concrete test blocks. Summary of the invention

[0004] The utility model aims to provide a vibration-compression molding device for a permeable concrete test block in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A permeable concrete test block vibration compaction forming device comprises a hopper and a mixer for providing test materials to the hopper, a discharge channel with a valve is provided below the hopper; a loading conveyor belt is provided below the hopper, a mold is provided on the loading conveyor belt, and the mold is used to receive the test materials discharged from the discharge channel; a vibration platform is provided downstream of the loading conveyor belt, a pressure mechanism is provided on one side of the vibration platform through a first bracket, the pressure mechanism is provided with a liftable pressure plate, the pressure plate is arranged opposite to the vibration platform, a discharge conveyor belt is provided on the side of the vibration platform opposite to the loading conveyor belt, and auxiliary pushing components are provided on both sides of the vibration platform parallel to the conveying direction of the mold, and the auxiliary pushing components are used to transfer the mold between the loading conveyor belt, the vibration platform and the discharge conveyor belt.

[0007] The permeable concrete test block vibration-compression molding device manufactures concrete test blocks in the form of an assembly line, has high production efficiency, and has good consistency in the test blocks produced in batches, and can also greatly reduce the labor intensity of the workers; and the combination of vibration and compaction can effectively reduce the spacing between aggregate particles, increase the number of contact points between them, increase the contact area between them, and mesh more closely to form a uniform and tight multi-pore structure, thereby significantly improving the water permeability and compressive strength of the manufactured permeable concrete test blocks.

[0008] The hopper is arranged to, on the one hand, receive the test materials output from the mixer and store a certain amount of test materials in real time, and on the other hand, discharge the test materials into the mold regularly and quantitatively according to the production rhythm. The mold can be automatically moved onto the compaction platform under the transportation of the feeding conveyor belt.

[0009] The compaction platform can, on the one hand, compact the concrete test materials in the mold, discharge the gas entrapped in the concrete, and make the concrete evenly distributed in the mold; on the other hand, it can be used as a platform to support the mold so that the pressing plate can compact the concrete. The pressing mechanism can drive the pressing plate to lift and lower, so that the pressing plate is pressed into the mold to apply pressure to the concrete test materials. The cooperation of the two can obtain a dense and microvoid concrete test block structure.

[0010] Furthermore, the first support includes multiple columns, a bearing plate is arranged on the columns, and several inclined supports are arranged between the bearing plate and the columns; the pressing mechanism includes a driving member arranged on the bearing plate, and the output end of the driving member passes through the bearing plate downward and is connected with the pressing plate.

[0011] Furthermore, the driving member is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and different types of driving members can be selected according to the magnitude of the pressing pressure. A pressure sensor is also arranged on the pressing plate.

[0012] Furthermore, the auxiliary pushing assembly includes a box body arranged parallel to the compaction platform. The box body is supported by a second support. A sliding seat is arranged on one side of the box body facing the mold. An electric push rod and a position sensor are arranged on the sliding seat, and the output end of the electric push rod has an insertion part. The sliding seat can reciprocate along the length direction of the box body, thereby driving the whole electric push rod to move along the transportation direction of the mold.

[0013] Furthermore, a lead screw is arranged in the box body on one side. A lead screw sliding sleeve is arranged on the lead screw. The lead screw sliding sleeve is connected with the sliding seat. A servo motor for driving and connecting the lead screw is also arranged outside the box body; a guide rod is arranged in the box body on the other side. A guide sliding sleeve is arranged on the guide rod. The guide sliding sleeve is connected with the sliding seat on its side. This structural form is a driven form; in practice, a lead screw, a lead screw sliding sleeve and other structures can also be arranged in the box body on the other side to form a double-drive form.

[0014] Furthermore, a pair of lifting handles are arranged on the outer side of the mold. A horizontally arranged positioning jack is arranged in the lifting handles, and the insertion part can be docked with the positioning jack.

[0015] Furthermore, the valve of the discharge channel is a metering valve, or an automatic feeding weighing scale is arranged below the discharge channel.

[0016] Furthermore, the mixer is supported by a third support. The mixer is provided with a feeding port and a discharging port, and the discharging port is connected to the hopper; a side support frame is provided on the side of the third support, and the side support frame is used to connect and support the hopper.

[0017] Furthermore, a number of support legs are respectively provided below the feeding conveyor belt and the discharging conveyor belt; the feeding conveyor belt, the compaction platform and the discharging conveyor belt are arranged at the same height, or arranged step by step and gradually lower.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. The present permeable concrete test block vibrating and compacting forming device manufactures concrete test blocks in the form of an assembly line, with relatively high production efficiency, good consistency of the test blocks produced in batches, and can also greatly reduce the labor intensity of workers; moreover, by combining vibration compaction and static compaction, the distance between aggregate particles can be effectively reduced, increasing the number of contact points between them, increasing the contact area between them, making the meshing more compact, and forming a uniform and dense multi-pore structure, thereby significantly improving the water permeability and compressive strength of the produced permeable concrete test blocks; 2. The setting of the hopper can, on the one hand, receive the test materials output from the mixer and store a certain amount of test materials in real time, and on the other hand, can discharge the test materials into the mold regularly and quantitatively according to the production rhythm; 3. The compaction platform can, on the one hand, vibrate and compact the concrete test materials in the mold, discharge the gas wrapped in the concrete, and make the concrete evenly distributed in the mold; on the other hand, it can be used as a platform to support the mold so that the pressing plate compacts the concrete; 4. The auxiliary pushing component is set to further move the mold conveyed on the feeding conveyor belt to the middle of the table at the compaction platform for vibration compaction and static compaction; it is also to move the mold that has completed vibration compaction on the compaction platform to the discharging conveyor belt so that the discharging conveyor belt conveys the mold to the curing area. Description of the Drawings

[0019] Figure 1 It is an overall schematic diagram of a permeable concrete test block vibrating and compacting forming device of the present utility model;

[0020] Figure 2 It is an arrangement schematic diagram of the auxiliary pushing component of a permeable concrete test block vibrating and compacting forming device of the present utility model;

[0021] Figure 3 It is a top view schematic diagram of the auxiliary pushing component of the present utility model;

[0022] Figure 4 It is an internal structure schematic diagram of the box body in the auxiliary pushing component of the present utility model;

[0023] In the figure: 1, mixer; 101, feeding port; 102, discharging port; 2, hopper; 201, discharging channel; 3, feeding conveyor belt; 4, mold; 401, lifting handle; 402, positioning socket; 5, vibrating compaction platform; 6, first support; 601, column; 602, bearing plate; 603, inclined support; 7, pressing mechanism; 8, pressing plate; 9, discharging conveyor belt; 10, second support; 11, box body; 12, sliding seat; 13, electric push rod; 14, position sensor; 15, lead screw; 16, lead screw sliding sleeve; 17, servo motor; 18, metering valve; 19, third support; 20, side support frame. Detailed implementation manner

[0024] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] As Figure 1 and Figure 2 shown, a vibrating compaction forming device for permeable concrete test blocks includes a hopper 2 and a mixer 1 for providing test materials for the hopper 2. A discharging channel 201 with a valve is provided below the hopper 2; a feeding conveyor belt 3 is provided below the hopper 2, and a mold 4 is provided on the feeding conveyor belt 3, and the mold 4 is used to receive the test materials discharged from the discharging channel 201; a vibrating compaction platform 5 is provided downstream of the feeding conveyor belt 3, and a pressing mechanism 7 is provided on one side of the vibrating compaction platform 5 through a first support 6. The pressing mechanism 7 is provided with a liftable pressing plate 8, and the pressing plate 8 is arranged opposite to the vibrating compaction platform 5. A discharging conveyor belt 9 is provided on the side of the vibrating compaction platform 5 opposite to the feeding conveyor belt 3. Auxiliary pushing components are also provided on both sides of the vibrating compaction platform 5 parallel to the conveying direction of the mold 4, and the auxiliary pushing components are used to transfer the mold 4 between the feeding conveyor belt 3, the vibrating compaction platform 5 and the discharging conveyor belt 9.

[0027] This vibrating and pressing forming device for permeable concrete test blocks manufactures concrete test blocks in the form of an assembly line, with relatively high production efficiency, good consistency of the test blocks produced in batches, and can also greatly reduce the labor intensity of workers. Moreover, by combining vibration compaction and pressure compaction, it can effectively reduce the spacing between aggregate particles, increase the number of contact points between them, increase the contact area between them, make the meshing more compact, and form a uniform and dense multi-porous structure, thereby significantly improving the water permeability and compressive strength of the produced permeable concrete test blocks.

[0028] The hopper 2 can, on the one hand, receive the test materials output from the mixer and store a certain amount of test materials in real time, and on the other hand, can discharge the test materials into the mold 4 regularly and quantitatively according to the production rhythm. The mold 4 can be automatically moved onto the vibrating platform 5 under the conveyance of the feeding conveyor belt 3.

[0029] The vibrating platform 5 can, on the one hand, vibrate the concrete test materials in the mold, discharge the air entrapped in the concrete, and make the concrete evenly distributed in the mold; on the other hand, it can be used as a platform to support the mold 4 so that the pressing plate 8 can compact the concrete. The pressing mechanism 7 can drive the pressing plate 8 to rise and fall, so that the pressing plate 8 presses into the mold 4 to press the concrete test materials. The cooperation of the two can obtain a dense and micro-void concrete test block structure.

[0030] The vibrating platform 5 in this embodiment can select a commercially available mature product, which usually includes components such as a tabletop, a chassis, a vibrator (vibration motor), and springs. After being powered on, the vibration motor generates an exciting force, which is transmitted to the vibrating tabletop through the damping springs and other structures, thereby driving the mold and concrete on the vibrating tabletop to vibrate, discharging the air bubbles therein, vibrating and homogenizing the test block, and making the test block stronger and more beautiful.

[0031] Since there are certain gaps between the feeding conveyor belt 3 and the vibrating platform 5, and between the vibrating platform 5 and the discharging conveyor belt 9 respectively, and the mold 4 placed on the vibrating platform 5 cannot move by itself; therefore, the auxiliary pushing assembly is provided to further move the mold conveyed from the feeding conveyor belt 3 to the vibrating platform 5 to the middle of the tabletop for vibration compaction and pressure compaction; it is also to move the mold that has completed vibration compaction on the vibrating platform 5 to the discharging conveyor belt 9 so that the discharging conveyor belt can convey the mold to the curing area.

[0032] Further, the first support 6 includes a plurality of columns 601. A bearing plate 602 is provided on the columns 601, and a number of inclined supports 603 are provided between the bearing plate 602 and the columns 601. The pressing mechanism 7 includes a driving member provided on the bearing plate 602. The output end of the driving member passes downward through the bearing plate 602 and is connected to the pressing plate 8.

[0033] Through the arrangement of the columns 601 and the bearing plate 602, the driving member can be better installed, and the concrete sample is pressed downward by the thrust generated by the driving member. The arrangement of the inclined supports 603 can improve the stability of the support. The driving member has a telescopic output end, such as a piston rod.

[0034] Further, the driving member is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and different types of driving members can be selected according to the magnitude of the pressing pressure. In some embodiments, a pressure sensor is further provided on the pressing plate 8. Generally, during the operation of the driving member, the magnitude of the applied pressure can be obtained through its controller. By further providing the pressure sensor as a direct measurement device, the pressure value or pressure on the pressing plate can be obtained relatively accurately.

[0035] Further, in combination with Figure 3 As shown, the auxiliary pushing assembly includes a box body 11 arranged parallel to the vibrating platform 5. The box body 11 is supported by a second support 10. A sliding seat 12 is provided on one side of the box body 11 facing the mold 4. An electric push rod 13 and a position sensor 14 are provided on the sliding seat 12. The output end of the electric push rod 13 has an insertion portion.

[0036] The sliding seat 12 can reciprocate along the length direction of the box body 11, thereby driving the entire electric push rod 13 to move along the conveying direction of the mold. By using the insertion portion of the electric push rod 13, when the mold 4 falls from the feeding conveyor belt onto the vibrating platform, it can be connected to the mold 4, and further drive the mold 4 to move towards the middle of the vibrating platform 5 so that it reaches the pressing position. After vibration compaction is completed, the electric push rod 13 can be inserted into the mold 4 again to drive the mold 4 to continue moving, so that the mold 4 can move onto the discharging conveyor belt 9.

[0037] The arrangement of the electric push rod 13 can flexibly control the connection and separation of its insertion portion from the mold 4. The arrangement of the position sensor 14 is beneficial for the insertion portion to accurately identify the position of the positioning jack to ensure that it can be connected to the mold.

[0038] Further, in combination with Figure 4As shown, a lead screw 15 is provided inside the box body 11 on one side. A lead screw sliding sleeve 16 is provided on the lead screw 15. The lead screw sliding sleeve 16 is connected to the sliding seat 12. A servo motor 17 for driving and connecting the lead screw is also provided outside the box body 11. Inside the box body 11 on the other side, a guide rod is provided. A guide sliding sleeve is provided on the guide rod. The guide sliding sleeve is connected to the sliding seat on its side.

[0039] The servo motor 17 is used to drive the lead screw 15 to rotate, so as to drive the lead screw sliding sleeve 16 to perform a linear motion, thereby driving the sliding seat 12 and the electric push rod 13 thereon to move linearly. The guide rod and the guide sliding sleeve provided on the other side are driven components, mainly playing a guiding role.

[0040] Furthermore, a pair of lifting handles 401 are provided outside the mold 4. The mold can be carried by using the lifting handles 401. A horizontally arranged positioning jack 402 is provided inside the lifting handle 401, which can be docked with the insertion part.

[0041] Furthermore, the valve of the discharge channel 201 is a metering valve 18. Since the sizes of the discharge channel and the valve are known, the volume or weight of the concrete sample flowing out can be controlled according to the flow rate of the metering valve, so as to discharge a preset amount of concrete sample into the mold.

[0042] In some embodiments, an automatic feeding weighing scale can also be provided below the discharge channel 201 to accurately discharge materials by weighing. Both the metering valve and the automatic feeding weighing scale can be selected from commercially available mature products.

[0043] Furthermore, the mixer 1 is supported by a third support 19. The mixer 1 is provided with a feeding port 101 and a discharging port 102. The discharging port 102 is connected to the hopper 2. A side support frame 20 is provided on the side of the third support 19. The side support frame 20 is used to connect and support the hopper 2.

[0044] A mixing shaft is provided inside the mixer 1, and a motor is provided outside. Directly purchase commercially available products for installation and use. The setting of the third support 19 not only supports the mixer 1, but also uses its side support frame 20 to support and fix the hopper 2.

[0045] Furthermore, both the feeding conveyor belt 3 and the discharging conveyor belt 9 are belt conveyors, and a number of support legs are respectively provided below their frames. The upper surfaces of the feeding conveyor belt 3, the vibration compacting platform 5, and the discharging conveyor belt 9 are arranged at the same height to horizontally convey the mold.

[0046] In some embodiments, the feeding conveyor belt 3, the compaction platform 5, and the discharging conveyor belt 9 may also be arranged step by step in a gradually decreasing manner. There is a certain height difference among the three, which can enable the mold to move downstream better.

[0047] When this permeable concrete specimen vibrating and pressing forming device is in use, first weigh the cementitious material, admixture, water, and aggregate respectively, and sequentially add them into the mixer through the feeding port for stirring. For example, the stirring sequence is to add the cementitious material, admixture, and water into the mixer and stir clockwise for 1 minute, then add the aggregate into the mixer and stir clockwise for 1 minute. After the stirring is completed, control the mixer to rotate counterclockwise to discharge the concrete test material to the discharge port, and then it falls into the hopper for storage.

[0048] A feeding conveyor belt is arranged below the hopper. Place the mold below the discharge channel of the hopper, and control the metering valve to let the concrete test material fall into the mold for filling. After the filling is completed, the feeding conveyor belt transports the mold to the compaction platform. With the help of the auxiliary pushing assembly, the mold is moved to the middle area of the compaction platform. First, perform low-frequency vibration for about 10 seconds, and then control the pressing mechanism to let the pressing plate apply a pressure of 1 - 2 MPa to the concrete test material in the mold for forming, and keep it for 5 seconds before the pressing ends. During this process, the compaction platform can continue to vibrate; finally, use the auxiliary pushing assembly to push the mold to the discharging conveyor belt, and the discharging conveyor belt transports the formed specimen with the mold out, and the worker puts it into the curing room for film covering and curing.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibrating and pressing forming device for permeable concrete test blocks, characterized in that, It includes a hopper and a mixer for providing test materials to the hopper. There is a discharge channel with a valve below the hopper; a feeding conveyor belt is provided below the hopper, and a mold is provided on the feeding conveyor belt, and the mold is used to receive the test materials discharged from the discharge channel; a compaction platform is provided downstream of the feeding conveyor belt, and a pressing mechanism is provided on one side of the compaction platform through a first support. The pressing mechanism is provided with a liftable pressing plate, and the pressing plate is arranged opposite to the compaction platform. A discharging conveyor belt is provided on the side of the compaction platform opposite to the feeding conveyor belt. Auxiliary pushing components are also provided on both sides of the compaction platform parallel to the conveying direction of the mold, and the auxiliary pushing components are used to transfer the mold between the feeding conveyor belt, the compaction platform and the discharging conveyor belt.

2. The vibrating and pressing forming device for the permeable concrete test block according to claim 1, characterized in that, The first support includes multiple columns, and a bearing plate is provided on the columns. Several inclined supports are provided between the bearing plate and the columns; the pressing mechanism includes a driving member provided on the bearing plate, and the output end of the driving member passes through the bearing plate downward and is connected to the pressing plate.

3. The vibrating and pressing forming device for the permeable concrete test block according to claim 2, wherein The driving member is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and a pressure sensor is also provided on the pressing plate.

4. The vibrating and pressing forming device for the permeable concrete test block according to claim 1, characterized in that, The auxiliary pushing component includes a box body arranged parallel to the compaction platform. The box body is supported by a second support. A sliding seat is provided on the side of the box body facing the mold. An electric push rod and a position sensor are provided on the sliding seat, and the output end of the electric push rod has an insertion part.

5. The vibrating and pressing forming device for permeable concrete test blocks according to claim 4, characterized in that, A lead screw is provided in the box body on one side, and a lead screw sliding sleeve is provided on the lead screw. The lead screw sliding sleeve is connected to the sliding seat, and a servo motor for driving and connecting the lead screw is also provided outside the box body; a guide rod is provided in the box body on the other side, and a guide sliding sleeve is provided on the guide rod. The guide sliding sleeve is connected to the sliding seat on its side.

6. The vibrating and pressing forming device for the permeable concrete test block according to claim 1, wherein, A pair of lifting handles are provided on the outer side of the mold, and a horizontally arranged positioning jack is provided in the lifting handles.

7. The vibrating and pressing forming device for the permeable concrete test block according to claim 1, characterized in that, The valve of the discharge channel is a metering valve, or an automatic discharging weighing scale is provided below the discharge channel.

8. The vibrating and pressing forming device for the permeable concrete test block according to claim 1, wherein, The mixer is supported by a third support. The mixer is provided with a feeding port and a discharging port, and the discharging port is connected to the hopper; a side support frame is provided on the side of the third support, and the side support frame is used to connect and support the hopper.

9. The vibrating and pressing forming device for permeable concrete test blocks according to claim 1, wherein, Several support legs are respectively provided below the feeding conveyor belt and the discharging conveyor belt; the feeding conveyor belt, the compaction platform and the discharging conveyor belt are arranged at the same height, or arranged step by step and gradually lower.

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