A vibration molding table for concrete and a vibration method

Abstract

This invention relates to the field of concrete forming equipment technology, and more particularly to a vibratory forming table and vibration method for concrete. The vibratory forming table of this invention includes: a base; a vibration spring fixedly connected to the base; a support seat fixedly connected to the upper end of the vibration spring; a vibration motor fixedly connected to the base; an installation block slidably connected in the installation groove; a detection mechanism and a distribution mechanism provided on the installation block; the detection mechanism is used to detect the concrete content in the mold; this invention detects the concrete content in the mold by measuring the pressure difference between the detection rods on blocks one and two and the corresponding pressure sensors, and extracts excess concrete from the mold through an extraction pipe and a screw conveyor shaft, introducing the concrete into a mold with less concrete, thus ensuring a uniform concrete content within the vibratory forming table and eliminating the need for manual shoveling of excess concrete into a mold with less concrete.

Description

Technical Field

[0001] This invention relates to the field of concrete forming equipment technology, and in particular to a vibratory forming table and vibration method for concrete. Background Technology

[0002] A concrete vibration molding table is a piece of equipment specifically designed for manufacturing concrete products. It uses vibration to distribute the concrete evenly in the mold and expel air, thus shaping and compacting the concrete in the mold. It is widely used in the construction industry.

[0003] The concrete vibration molding table provides vibration force through a motor, hydraulic system, or pneumatic system. Workers place the molds on the vibration molding table in sequence, then spray the mold surface with a demolding agent. Next, the concrete placing machine is started, pouring concrete into the mold. Subsequently, the vibration mechanism of the concrete vibration molding table vibrates, causing the concrete inside the mold to adhere to the mold. As the concrete vibrates, air bubbles in the concrete are expelled. After vibration is complete, the mold and concrete are removed from the concrete vibration molding table together. After the concrete has solidified, it is removed from the mold.

[0004] When concrete is placed into the molds using a concrete placing boom, uneven distribution can occur, with some molds containing more concrete than others. Workers need to use shovels to transfer the excess concrete to the molds with less concrete to prevent it from falling onto the concrete vibration molding platform during vibration, and to avoid situations where some areas have insufficient concrete. Manually using shovels is time-consuming and labor-intensive, thus creating limitations.

[0005] Therefore, we propose a vibratory molding table for concrete and a vibration method thereon. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a vibratory molding table and vibration method for concrete, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a vibration molding table for concrete, comprising:

[0008] A base; a vibration spring is fixedly connected to the base; a support is fixedly connected to the upper end of the vibration spring; a vibration motor is fixedly connected to the base; an eccentric vibration block is fixedly connected to the output end of the vibration motor.

[0009] A mounting frame is fixedly connected to the support base, and a mounting groove is provided on the mounting frame; a mounting block is slidably connected in the mounting groove; a detection mechanism and a distributing mechanism are provided on the mounting block; the detection mechanism is used to detect the concrete content in the mold; when the detection mechanism detects that the concrete content in the mold is low, the distributing mechanism adds concrete to the mold; when the detection mechanism detects that the concrete content in the mold is high, the concrete in the mold is extracted.

[0010] Preferably, the detection mechanism includes a support block, a first block, a second block, and a detection rod; a telescopic electric push rod is fixedly connected to the mounting block; the output end of the telescopic electric push rod is fixedly connected to the support block; the first block is fixedly connected to the support block; the second block is mounted on the mounting block; sliding grooves are formed on the first and second blocks; a first pressure sensor is fixedly connected in the sliding groove; a detection rod is slidably connected in the sliding groove; a detection spring is fixedly connected between the detection rod and the first pressure sensor.

[0011] Preferably, the equalizing mechanism includes a third block, a movable electric push rod, and an extraction tube; a sliding block is fixedly connected to the mounting block; the third block is slidably connected to the sliding block; the movable electric push rod is fixedly connected to the sliding block, and the output end of the movable electric push rod is fixedly connected to the third block; a cavity is formed inside the third block; the extraction tube is fixedly connected to the third block and communicates with the cavity; an extraction motor is fixedly connected inside the third block; a spiral conveying shaft is fixedly connected to the output end of the extraction motor; the spiral conveying shaft extends into the extraction tube.

[0012] Preferably, a stirring rod is provided inside the cavity; the stirring rod is fixedly connected to the spiral conveyor shaft.

[0013] The concrete content in the mold is detected by measuring the pressure difference between the corresponding pressure sensors on the detection rods on blocks one and two. Excess concrete is extracted from the mold through the extraction pipe and the screw conveyor shaft, and the concrete is introduced into the mold with less concrete, so that the concrete content in the vibration molding table is uniform and there is no need to manually shovel excess concrete into the mold with less concrete.

[0014] Preferably, a detection ring is fixedly connected to the detection rod on the second block; a rotating rod is hinged to the detection ring; detection blocks are uniformly fixedly connected to the detection ring; a second pressure sensor is fixedly connected inside the detection block; and a support spring is fixedly connected between the second pressure sensor and the rotating rod.

[0015] Preferably, a rotating motor is fixedly connected inside the support block; the second block is rotatably connected to the support block; and the output end of the rotating motor is fixedly connected to the second block.

[0016] By striking the concrete surface with the detection ring and rotating rod, the exposed aggregate and other fillers within the concrete are pressed back down, resulting in a smoother concrete surface after solidification. Simultaneously, the up-and-down movement of the detection ring prevents the ring and rotating rod on block number two from sinking into the concrete under the influence of gravity and the detection spring, which would alter the depth of the detection rod and lead to inaccurate detection.

[0017] Preferably, the lower end of the extraction tube has a through groove; the lower end of the third block is fixedly connected to a sliding electric push rod; the outer side of the extraction tube is hinged to an inverted 7-shaped plate by a torsion spring; the inverted 7-shaped plate can be inserted into the through groove; a connecting rope is fixedly connected to the sliding electric push rod; the other end of the connecting rope is fixedly connected to the inverted 7-shaped plate.

[0018] Preferably, elastic arc-shaped pieces are fixedly connected to both the upper and lower sides of the end of the inverted 7-shaped plate inserted into the through groove.

[0019] A vibration method for concrete, applicable to the aforementioned vibratory molding table for concrete, comprises the following steps:

[0020] S1. Workers use a concrete placing boom to pour concrete into the mold. The detection rods on blocks one and two detect the amount of concrete in the mold. Block three and the extraction tube move downward to extract the excess concrete from the mold and replenish the missing concrete in the mold.

[0021] S2. The support block drives the No. 1 block, No. 2 block, detection rod and detection ring to move up and down. The detection ring and rotating rod strike the concrete surface and press down the stones exposed on the concrete surface.

[0022] S3. The vibration motor drives the eccentric vibration block to rotate, causing the support base and mold to vibrate.

[0023] The beneficial effects of this invention are:

[0024] 1. This invention detects the amount of concrete in the mold by measuring the pressure difference between the corresponding pressure sensors on the detection rods on blocks one and two. Excess concrete is extracted from the mold through the extraction pipe and the screw conveyor shaft, and the concrete is introduced into the mold with less concrete, so that the concrete content in the vibration molding table is uniform and there is no need to manually shovel excess concrete into the mold with less concrete.

[0025] 2. This invention uses a detection ring and a rotating rod to strike the concrete surface, thereby pressing any exposed aggregates or other fillers into the concrete surface, resulting in a smoother concrete surface after solidification. Simultaneously, the up-and-down movement of the detection ring prevents the detection ring and rotating rod on the second block from sinking into the concrete under the influence of gravity and the detection spring after contact, which would cause changes in the depth of the detection rod's extension and retraction, leading to inaccurate detection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a concrete vibration molding table according to the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0029] Figure 4 This is a partial cross-sectional view of the support block, the second block, and the detection rod in this invention;

[0030] Figure 5 This is a partial cross-sectional view of the No. 3 block, the extraction tube, and the inverted 7-shaped plate in this invention;

[0031] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0032] In the diagram: 1. Base; 11. Vibration spring; 12. Support seat; 13. Vibration motor; 14. Eccentric vibration block; 15. Mounting bracket; 16. Mounting groove; 17. Mounting block; 2. Detection mechanism; 21. Support block; 22. Block 1; 23. Block 2; 24. Detection rod; 25. Telescopic electric push rod; 26. Sliding groove; 27. Pressure sensor 1; 28. Detection spring; 3. Dividing mechanism; 31. Block 3; 32. Moving electric push rod; 33. Extraction tube; 34. Sliding block; 35. Cavity; 36. Extraction motor; 37. Screw conveyor shaft; 38. Stirring rod; 4. Detection ring; 41. Rotating rod; 42. Detection block; 43. Pressure sensor 2; 44. Support spring; 5. Rotating motor; 51. Sliding electric push rod; 52. Inverted 7-shaped plate; 53. Connecting rope; 54. Elastic arc plate; 6. Through groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Refer to the appendix of the instruction manual. Figure 1 A vibration molding table for concrete, comprising:

[0035] Base 1; a vibration spring 11 is fixedly connected to the base 1; a support seat 12 is fixedly connected to the upper end of the vibration spring 11; a vibration motor 13 is fixedly connected to the base 1; an eccentric vibration block 14 is fixedly connected to the output end of the vibration motor 13.

[0036] A mounting frame 15 is fixedly connected to the support base 12, and a mounting groove 16 is provided on the mounting frame 15; a mounting block 17 is slidably connected in the mounting groove 16; a detection mechanism 2 and a distributing mechanism 3 are provided on the mounting block 17; the detection mechanism 2 is used to detect the concrete content in the mold; when the detection mechanism 2 detects that the concrete content in the mold is low, the distributing mechanism 3 adds concrete to the mold; when the detection mechanism 2 detects that the concrete content in the mold is high, the concrete in the mold is extracted.

[0037] Refer to the instruction manual appendix Figure 1 , 2 In this embodiment, the detection mechanism 2 includes a support block 21, a first block 22, a second block 23, and a detection rod 24; a telescopic electric push rod 25 is fixedly connected to the mounting block 17; the output end of the telescopic electric push rod 25 is fixedly connected to the support block 21; the first block 22 is fixedly connected to the support block 21; the second block 23 is mounted on the mounting block 17; sliding grooves 26 are provided on the first block 22 and the second block 23; a first pressure sensor 27 is fixedly connected in the sliding groove 26; the detection rod 24 is slidably connected in the sliding groove 26; a detection spring 28 is fixedly connected between the detection rod 24 and the first pressure sensor 27.

[0038] Refer to the instruction manual appendix Figure 3 and 5 In this embodiment, the equalizing mechanism 3 includes a third block 31, a movable electric push rod 32, and an extraction tube 33; a sliding block 34 is fixedly connected to the mounting block 17; the third block 31 is slidably connected to the sliding block 34; the movable electric push rod 32 is fixedly connected to the sliding block 34, and the output end of the movable electric push rod 32 is fixedly connected to the third block 31; a cavity 35 is opened inside the third block 31; the extraction tube 33 is fixedly connected to the third block 31 and communicates with the cavity 35; an extraction motor 36 is fixedly connected inside the third block 31; a spiral conveying shaft 37 is fixedly connected to the output end of the extraction motor 36; the spiral conveying shaft 37 extends into the extraction tube 33.

[0039] In this embodiment, a stirring rod 38 is provided inside the cavity 35; the stirring rod 38 is fixedly connected to the spiral conveying shaft 37.

[0040] In this invention, the operator first neatly places the mold on the support base 12, then sprays a release agent onto the surface of the mold. Next, the concrete placing machine is started to pour concrete into the mold. Then, the controller controls the telescopic electric push rod 25 to push the support block 21, block 22, block 23, and detection rod 24 downwards. This causes the detection rod 24 on block 22 to contact the upper end of the mold, while the detection rod 24 on block 23 contacts the concrete inside the mold. After the detection rod 24 moves into the sliding groove 26, it compresses the detection spring 28, causing pressure on the pressure sensor 27. The longer the detection rod 24 retracts into the sliding groove 26, the greater the pressure on the pressure sensor 27. Because the extension and retraction of the detection rods 24 on blocks 22 and 23 are different, when the pressure on the pressure sensor 27 on block 23 is less than that on block 24... When the pressure of pressure sensor 27 on block 22 is less than that of detection rod 24 on block 23, it indicates that the extension of detection rod 24 on block 23 is less than that of detection rod 24 on block 22. This means the end of detection rod 24 on block 23 is lower than the end of detection rod 24 on block 22, and the concrete is lower than the top of the mold. Based on the pressure difference between pressure sensor 27 on block 22 and pressure sensor 23, the spring constant of detection spring 28 is used, and the spring constant formula is applied to calculate the difference between the concrete and the top of the mold. The equalizing mechanism 3 then replenishes the concrete in the mold based on this difference. Conversely, when the pressure of pressure sensor 27 on block 23 is greater than that of pressure sensor 24 on block 22, it indicates that the concrete is higher than the top of the mold, and the equalizing mechanism 3 removes the excess concrete from the mold.

[0041] In this invention, when the equalizing mechanism 3 extracts the concrete from the mold, the controller controls the moving electric push rod 32 to push the third block 31 and the extraction tube 33 downwards, so that the extraction tube 33 is inserted into the concrete, contacting the extraction motor 36 to rotate in the forward direction, driving the spiral conveying shaft 37 to rotate, which will cause the excess concrete in the mold to enter the cavity 35. The extraction motor 36 drives the stirring rod 38 to rotate, stirring the concrete in the cavity 35, so that the concrete in the cavity 35 is not easy to solidify. When the concrete in the mold is to be replenished, the extraction motor 36 rotates the spiral conveying shaft 37 in the reverse direction, so that the concrete in the cavity 35 enters the mold.

[0042] When the mold is vibrated, the vibration motor 13 drives the eccentric vibration block 14 to rotate, causing the support base 12 and the mold to vibrate.

[0043] The present invention detects the amount of concrete in the mold by measuring the pressure difference between the detection rods 24 on the first block 22 and the second block 23 and the corresponding first pressure sensor 27. The excess concrete in the mold is extracted by the extraction pipe 33 and the screw conveyor shaft 37 and the concrete is introduced into the mold with less concrete, so that the concrete content in the vibration molding table is uniform and there is no need to manually shovel the excess concrete into the mold with less concrete.

[0044] Refer to the instruction manual appendix Figure 2 In this embodiment, a detection ring 4 is fixedly connected to the detection rod 24 on the second block 23; a rotating rod 41 is hinged to the detection ring 4; detection blocks 42 are uniformly fixedly connected to the detection ring 4; a second pressure sensor 43 is fixedly connected inside the detection block 42; and a support spring 44 is fixedly connected between the second pressure sensor 43 and the rotating rod 41.

[0045] In this embodiment, a rotating motor 5 is fixedly connected inside the support block 21; a second block 23 is rotatably connected to the support block 21; and the output end of the rotating motor 5 is fixedly connected to the second block 23.

[0046] In this invention, when the spiral conveying shaft 37 of the equalizing mechanism 3 extracts concrete from the mold, the controller controls the telescopic electric push rod 25 to drive the support block 21, block 22, and block 23 to move back and forth up and down. This causes the detection rods 24 on blocks 22 and 23 to move back and forth up and down, thereby causing the detection ring 4 and the rotating rod 41 to strike the concrete surface back and forth. This prevents the detection ring 4 and the rotating rod 41 on block 23 from impacting the concrete after contact with it. Under the influence of gravity and the detection spring 28, the detection ring 4 and the rotating rod 41... The sinking into the concrete causes the extension and retraction depth of the detection rod 24 to change, resulting in inaccurate detection. While the telescopic electric push rod 25 drives the second block 23, the detection ring 4 and the rotating rod 41 to move up and down, the rotating motor 5 rotates the second block 23 back and forth, causing the detection ring 4 and the rotating rod 41 to swing back and forth. This increases the range of the detection ring 4 and the rotating rod 41 hitting the concrete surface, thereby pressing the stone and other fillers exposed on the concrete surface under the concrete surface, making the concrete surface smoother after solidification.

[0047] In this invention, when the detection rod 24 moves downward with the detection ring 4 and the rotating rod 41, the rotating rod 41 contacts the concrete surface. Therefore, when the concrete is unevenly distributed in the mold, with one side being higher than the other, the higher side pushes the rotating rod 41 to rotate, causing the support spring 44 to be compressed. As a result, the pressure on the corresponding second pressure sensor 43 is greater than that on the other second pressure sensors 43, thus enabling the detection of whether the concrete is uneven in the mold.

[0048] This invention uses a detection ring 4 and a rotating rod 41 to strike the concrete surface, thereby pressing the exposed aggregates and other fillers under the concrete surface, resulting in a smoother concrete surface after solidification. Simultaneously, the up-and-down movement of the detection ring 4 prevents the detection ring 4 and rotating rod 41 on block 23 from sinking into the concrete under the influence of gravity and the detection spring 28 after contact with the concrete, which would cause changes in the extension depth of the detection rod 24 and lead to inaccurate detection.

[0049] Refer to the instruction manual appendix Figure 6 In this embodiment, the lower end of the extraction tube 33 is provided with a through groove 6; the lower end of the third block 31 is fixedly connected to a sliding electric push rod 51; the outer side of the extraction tube 33 is hinged to an inverted 7-shaped plate 52 by a torsion spring; the inverted 7-shaped plate 52 can be inserted into the through groove 6; a connecting rope 53 is fixedly connected to the sliding electric push rod 51; the other end of the connecting rope 53 is fixedly connected to the inverted 7-shaped plate 52.

[0050] In this embodiment, elastic arc-shaped pieces 54 are fixedly connected to both the upper and lower sides of one end of the inverted 7-shaped plate 52 inserted into the through groove 6.

[0051] As the moving electric push rod 32 moves the third block 31 and the extraction tube 33 downwards, the sliding electric push rod 51 pulls the connecting rope 53 upwards, thereby pulling the inverted 7-shaped plate 52 out of the through groove 6, thus opening the opening of the extraction tube 33. When the sliding electric push rod 51 moves the third block 31 and the extraction tube 33 upwards and pulls them out of the concrete, the output end of the sliding electric push rod 51 moves downwards again, causing the inverted 7-shaped plate 52 to re-insert into the through groove 6 under the action of the torsion spring. Therefore, the inverted 7-shaped plate 52 can open and close the extraction tube 33 while adhering to as little concrete as possible. The inverted 7-shaped plate 52 of this invention is provided with an elastic arc-shaped piece 54. Therefore, when the inverted 7-shaped plate 52 is inserted into the through groove 6, the top of the elastic arc-shaped piece 54 scrapes the through groove 6, pushing the concrete out of the through groove 6, thereby preventing the through groove 6 from being blocked by concrete.

[0052] Example 2: A vibration method for concrete, applicable to the aforementioned vibratory molding table for concrete, the steps of which are as follows:

[0053] S1. The workers use a concrete placing boom to pour concrete into the mold. The detection rods 24 on block 1 22 and block 23 detect the amount of concrete in the mold. Block 3 31 and extraction tube 33 move downward to extract the excess concrete in the mold and replenish the missing concrete in the mold.

[0054] S2, support block 21 drives block 1 22, block 23, detection rod 24 and detection ring 4 to move up and down. Detection ring 4 and rotating rod 41 strike the concrete surface and press down the stones exposed on the concrete surface.

[0055] S3, the vibration motor 13 drives the eccentric vibration block 14 to rotate, causing the support base 12 and the mold to vibrate.

[0056] The foregoing 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibratory molding table for concrete, comprising: A base (1); a vibration spring (11) is fixedly connected to the base (1); a support seat (12) is fixedly connected to the upper end of the vibration spring (11); a vibration motor (13) is fixedly connected to the base (1); an eccentric vibration block (14) is fixedly connected to the output end of the vibration motor (13). The features are as follows: a mounting frame (15) is fixedly connected to the support base (12), and a mounting groove (16) is provided on the mounting frame (15); a mounting block (17) is slidably connected in the mounting groove (16); a detection mechanism (2) and a distribution mechanism (3) are provided on the mounting block (17); the detection mechanism (2) is used to detect the content of concrete in the mold; when the detection mechanism (2) detects that the content of concrete in the mold is low, the distribution mechanism (3) adds concrete to the mold; when the detection mechanism (2) detects that the content of concrete in the mold is high, the concrete in the mold is extracted. The detection mechanism (2) includes a support block (21), a first block (22), a second block (23), and a detection rod (24); a telescopic electric push rod (25) is fixedly connected to the mounting block (17); the output end of the telescopic electric push rod (25) is fixedly connected to the support block (21); the first block (22) is fixedly connected to the support block (21); the second block (23) is mounted on the mounting block (17); sliding grooves (26) are provided on the first block (22) and the second block (23); a first pressure sensor (27) is fixedly connected in the sliding groove (26); the detection rod (24) is slidably connected in the sliding groove (26); a detection spring (28) is fixedly connected between the detection rod (24) and the first pressure sensor (27). The equalizing mechanism (3) includes a third block (31), a movable electric push rod (32), and an extraction tube (33); a sliding block (34) is fixedly connected to the mounting block (17); the third block (31) is slidably connected to the sliding block (34); the movable electric push rod (32) is fixedly connected to the sliding block (34), and the output end of the movable electric push rod (32) is fixedly connected to the third block (31); a cavity (35) is opened in the third block (31); the extraction tube (33) is fixedly connected to the third block (31) and communicates with the cavity (35); an extraction motor (36) is fixedly connected in the third block (31); a spiral conveying shaft (37) is fixedly connected to the output end of the extraction motor (36); the spiral conveying shaft (37) extends into the extraction tube (33); The extraction tube (33) has a through groove (6) at its lower end; a sliding electric push rod (51) is fixedly connected to the lower end of the third block (31); an inverted 7-shaped plate (52) is hinged to the outside of the extraction tube (33) by a torsion spring; the inverted 7-shaped plate (52) can be inserted into the through groove (6); a connecting rope (53) is fixedly connected to the sliding electric push rod (51); the other end of the connecting rope (53) is fixedly connected to the inverted 7-shaped plate (52).

2. The vibrating forming table for concrete according to claim 1, characterized in that: A stirring rod (38) is provided inside the cavity (35); the stirring rod (38) is fixedly connected to the spiral conveying shaft (37).

3. A vibrating forming table for concrete as claimed in claim 2 wherein: A detection ring (4) is fixedly connected to the detection rod (24) on the second block (23); a rotating rod (41) is hinged to the detection ring (4); detection blocks (42) are uniformly fixedly connected to the detection ring (4); a second pressure sensor (43) is fixedly connected inside the detection block (42); a support spring (44) is fixedly connected between the second pressure sensor (43) and the rotating rod (41).

4. A vibrating forming table for concrete as claimed in claim 3 wherein: A rotating motor (5) is fixedly connected inside the support block (21); the second block (23) is rotatably connected to the support block (21); the output end of the rotating motor (5) is fixedly connected to the second block (23).

5. A vibrating forming table for concrete as claimed in claim 4 wherein: The upper and lower sides of one end of the inverted 7-shaped plate (52) inserted into the through groove (6) are fixed with elastic arc-shaped pieces (54).

6. A vibration method for concrete, applicable to a vibration molding table for concrete as described in any one of claims 1-5, characterized in that: The steps of this method are as follows: S1. The staff uses a concrete placing machine to pour concrete into the mold. The detection rods (24) on block 1 (22) and block 2 (23) detect the amount of concrete in the mold. Block 3 (31) and extraction tube (33) move downward to extract the excess concrete in the mold and replenish the missing concrete in the mold. S2, the support block (21) drives the first block (22), the second block (23), the detection rod (24) and the detection ring (4) to move up and down. The detection ring (4) and the rotating rod (41) strike the concrete surface and press down the exposed stones on the concrete surface. S3. The vibration motor (13) drives the eccentric vibration block (14) to rotate, causing the support base (12) and the mold to vibrate.

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